AZA to keep "fewer large animals"?

One problem is that small animals are not always easy to acquire. Some critters like Yellow-throated Marten, Margay, Tree Hyrax and Owston's banded palm civet are absent in AZA, something like Bush Dogs are also going to be phased out from AZA facilities. Some other critters like Banded Mongoose, African Civets, Northern Luzon Giant Rats and Aye Aye are held in the small number of AZA facilities. From the perspective of Canadian zoos, acquiring some small animals may be even harder than getting large animals, the reason why Toronto Zoo phased out Matschie's Tree Kangaroo is not able to get any male from other facilities to form a breeding pair. The African Lion Safari acquired a Bull Asiatic Elephant from Europe this year, looks like getting a new Matschie's Tree Kangaroo might be harder than getting a much larger Elephant for Canadian facilities.
But what did dishearten me was that which came two sections after. Non-animal attractions will continue to be added to facilities. Attractions such as rides, live entertainment, immersive playgrounds, and video games will be added to appeal to younger generations.
Well, phasing out large species doesn't always mean the Zoo could save up the resources for getting small species, the Zoos may just reduce the number of its species roster. Those non-animal attractions could be substitution plans for Zoos that are not able to acquire new species and don't want the visitors to complain about nothing to see.
 
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One problem is that small animals are not always easy to acquire. Some critters like Yellow-throated Marten, Margay, Tree Hyrax and Owston's banded palm civet are absent in AZA, something like Bush Dogs are also going to be phased out from AZA facilities. Some other critters like Banded Mongoose, African Civets, Northern Luzon Giant Rats and Aye Aye are held in the small number of AZA facilities. From the perspective of Canadian zoos, acquiring some small animals may be even harder than getting large animals, the reason why Toronto Zoo phased out Matschie's Tree Kangaroo is not able to get any male from other facilities to form a breeding pair. The African Lion Safari acquired a Bull Asiatic Elephant from Europe this year, looks like getting a new Matschie's Tree Kangaroo might be harder than getting a much larger Elephant for Canadian facilities.

Well, phasing out large species doesn't always mean the Zoo could save up the resources for getting small species, the Zoos may just reduce the number of its species roster. Those non-animal attractions could be substitution plans for Zoos that are not able to acquire new species and don't want the visitors to complain about nothing to see.
When did bush dogs start getting phase out? Didn’t several zoos just acquire them in the past 5 years?
 
Some critters like Yellow-throated Marten, Margay, Tree Hyrax and Owston's banded palm civet are absent in AZA
Mash is has Yellow throated marten.
Some other critters like Banded Mongoose, African Civets, Northern Luzon Giant Rats and Aye Aye are held in the small number of AZA facilities.
I thought African civets were not in the AZA anymore. Which AZA zoo is keeping them?
 
The most important is likely not said. Socio-economic crisis in the USA hits zoos. So the trend is for zoos to go cheap (euphemism is sustainable). Keep smaller and less expensive animals (meerkats, lemurs, guinea pigs, pygmy goats) while large animals die out (elephants, hippos, bears, sea mammals). Attractions without live animals fill the space (sculptures from lego bricks, animatronics, lanterns, AI screens etc.). Expensive exhibits disappear (plans of new sea mammal exhibits and indoor rainforests appear to have died out after the Covid crisis)

At the same time, at the very beginning of the report, two large animals: beluga whales and polar bears are examples of species especially affected by warming climate. Which shows that big mammals are still best for getting public attention, and the ecological group most threatened by extinction.

I read this report and it seems too reactive, not proactive.

The report identifies that zoo audience is critical of keeping some animals (not always justifiably, apes thrive in human care). But why it proposes to move away from these animals? A better response is improving conditions and simply educating the public.

The report identifies demographic changes in the US, like fewer children and more non-white people. However, it does not see its potential. Some European zoos changed the public image into attractive for childless couples or pensioners. Many use pensioners as volunteers e.g. in education stands. Others introduced geographically themed exhibits of homeland of large immigrant populations (e.g. Sahel, in the USA it would be e.g. Mexico). There is still more to be done, e.g. engaging immigrant communities to help conservation in their home country.

Worrying for Zoochatters is the page 48, urging the zoos to “Harness the Power of Dynamic Pricing”

Super-positive and honest is recognizing that zoos themselves should address socio-economic problems of the modern USA, for example give proper salary and employment conditions to the staff.
 
The most important is likely not said. Socio-economic crisis in the USA hits zoos. So the trend is for zoos to go cheap (euphemism is sustainable). Keep smaller and less expensive animals (meerkats, lemurs, guinea pigs, pygmy goats) while large animals die out (elephants, hippos, bears, sea mammals). Attractions without live animals fill the space (sculptures from lego bricks, animatronics, lanterns, AI screens etc.). Expensive exhibits disappear (plans of new sea mammal exhibits and indoor rainforests appear to have died out after the Covid crisis)

At the same time, at the very beginning of the report, two large animals: beluga whales and polar bears are examples of species especially affected by warming climate. Which shows that big mammals are still best for getting public attention, and the ecological group most threatened by extinction.

I read this report and it seems too reactive, not proactive.

The report identifies that zoo audience is critical of keeping some animals (not always justifiably, apes thrive in human care). But why it proposes to move away from these animals? A better response is improving conditions and simply educating the public.

The report identifies demographic changes in the US, like fewer children and more non-white people. However, it does not see its potential. Some European zoos changed the public image into attractive for childless couples or pensioners. Many use pensioners as volunteers e.g. in education stands. Others introduced geographically themed exhibits of homeland of large immigrant populations (e.g. Sahel, in the USA it would be e.g. Mexico). There is still more to be done, e.g. engaging immigrant communities to help conservation in their home country.

Worrying for Zoochatters is the page 48, urging the zoos to “Harness the Power of Dynamic Pricing”

Super-positive and honest is recognizing that zoos themselves should address socio-economic problems of the modern USA, for example give proper salary and employment conditions to the staff.
I’ve noticed that many zoos have been taking a disappointing drop in quality lately, with many deciding to pour huge sums of money into cheap and interesting diversions such as animatronic dinosaurs, Chinese lantern displays, and heavily themed play areas instead of doing anything for the betterment of their animal residents, or even trying to introduce new species. Disney’s Animal Kingdom and Sea World are great examples of this, as both have phased out loads of species while introducing more shows, holiday events, private parties, and rides. Sad to see that many zoos just don’t seem to care anymore.
 
The African Lion Safari acquired a Bull Asiatic Elephant from Europe this year
African Lion Safari imported a new bull? Hadn't heard that!

I do have to say that I think zoos are in a tough spot. Large mammals are becoming increasingly expensive to maintain as their husbandry is pushed to evolve. Elephants for example now essentially require multiple acres of space and large social groupings to avoid scrutiny. Rhinos and other megafauna standards are also trending in that direction. Not every zoo can afford that due to either money or space, and so oftentimes the choice has to be made to push those mammals out. However small mammals aren't ofren as big of a draw and are harder to obtain so that is also a financial drawback. It seems a loose-loose situation.
 
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Mash is has Yellow throated marten.
Which Zoo is "Mash" here?
I thought African civets were not in the AZA anymore. Which AZA zoo is keeping them?
Based on Zootierlistle, the Safari North Wildlife Park in Brainerd is the only holder of African Civet in North America, I am not sure whether it is AZA credited.
I’ve noticed that many zoos have been taking a disappointing drop in quality lately, with many deciding to pour huge sums of money into cheap and interesting diversions such as animatronic dinosaurs, Chinese lantern displays, and heavily themed play areas instead of doing anything for the betterment of their animal residents, or even trying to introduce new species. Disney’s Animal Kingdom and Sea World are great examples of this, as both have phased out loads of species while introducing more shows, holiday events, private parties, and rides. Sad to see that many zoos just don’t seem to care anymore.
Keeping animals requires daily costs in feeding and enrichment, and holding more species requires additional costs for hiring more keepers. However, the zoos definitely need something to attract visitors for revenue. So Having non-animal attractions is more cost-effective for the zoos. Another issue is that holding large animals is expensive so many zoos may phase them out and turn the focus to smaller animals. However, those well-known attractive small species like Ring-tailed Lemurs, Meerkats and River Otters are often already in the zoos since they are easy to obtain, many interesting but less-known exotic small animals, like Matschie's Tree Kangaroo, may not be easy to acquire due to insufficient population in captivity.
 
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Shifting away from displaying larger animals in AZA zoos would be a significant change.

There has been a trend, as identified in 3A of the AZA Trends 2023 Report, for habitats to increase in size. This has been in development for a while, and I expect it to continue. There are some notable examples of where that trend has resulted in zoos reducing their species of large animals. For example, the Oregon Zoo stopped displaying river hippos to give more space to their black rhinos.

Most AZA populations of large animals have been relatively stable in face of these changes. Where populations of large animals have decreased, notably like with polar bears, it has had far more to do with the limited availability of animals from poor reproductive success than space limitations fueled by a lack of institutional interest in displaying that animal. The number of holders of elephants has decreased. That decrease has been offset somewhat by facilities developing exhibits that can hold an increased number of individual elephants.

The AZA populations of many smaller species of animals are much more threatened than their larger counterparts. Of course there are some exceptions. On Zoochat there is often discussion about the prevalence of meerkats, red pandas, Asian small clawed otters, ring tailed lemurs, black and white ruffed lemurs, sloths, red-necked wallabies, and perhaps a few more that I'm forgetting. That's seven species of small mammals. All seven species of "big cat" (all 5 Panthera species, cougars, and cheetahs) are well represented in AZA zoos. Are there any small cat species that are as abundant and secure in AZA as any one of those "big cats"? The great apes kept in AZA facilities seem to have stable populations, although more bonobo holders would be helpful. Compare that to all the species of monkeys lost or with declining populations. Lion-tailed macaques are perhaps the most famous of the disappearing AZA monkeys. The Oregon Zoo is down to displaying just one species of monkey.

Returning to the trend of larger habitat sizes, AZA populations of many smaller animals have been disproportionality negatively impacted. I worry much more for the future of many smaller species of animals in AZA zoos than for their larger counterparts.
 
I’ve noticed that many zoos have been taking a disappointing drop in quality lately, with many deciding to pour huge sums of money into cheap and interesting diversions such as animatronic dinosaurs, Chinese lantern displays, and heavily themed play areas instead of doing anything for the betterment of their animal residents, or even trying to introduce new species. Disney’s Animal Kingdom and Sea World are great examples of this, as both have phased out loads of species while introducing more shows, holiday events, private parties, and rides. Sad to see that many zoos just don’t seem to care anymore.
I think using this as a way to claim zoos "just don't seem to care anymore" is excessive, and using the two theme parks as your examples strengthens a generalization about zoos overall considering these are the two institutions most likely to invest in non-zoo types of attractions. There are not "huge sums of money" required for animatronic dinosaurs, playgrounds and Chinese lantern displays; in fact, some zoos seem to be licensing animatronic dinosaur displays from outside companies and are not actually paying for construction costs. Many of them do not have the kinds of daily maintenance costs that are needed to care for live animals which will need food, medicine, training and may break things, and dinosaurs and lantern festivals can bring in additional revenue that normal parts of the collection do not feature.

For some contrast, Brookfield Zoo is spending over $66 million on Tropical Forests, which includes multiple outdoor ape exhibits and monkey habitats. Saint Louis' Destination Discovery children's zoo will cost $40 million. Omaha spent $73 million on African Grasslands which includes a world-class exhibit for elephants. These are huge investments, well worth it, but nonetheless huge, and it's well-known Omaha's $73 million still did not match up to the entirety of their original concept for the exhibit and doesn't account for inflation like what is affecting Tropical Forests, which is much more modest in concept. Even exhibits for bears and tigers can cost tens to twenty million dollars. Every one of these animal exhibits requires daily maintenance so the new costs are not only the process of building an exhibit but keeping it running smoothly. I also often keep in mind the world-famous Bronx Zoo has taken a decade and a half to reopen exhibits closed during the budget crisis; surely the costs must be quite high for such a successful zoo to take so long on that.

So I would say the chances are extremely high that running animatronic dinosaurs and so forth, or building playgrounds, despite distaste for these practices on Zoochat, is actually far less expensive than constructing a new exhibit for animals and keeping it running on an ongoing basis, and therefore probably not eating into the budget for animal exhibits. Building a roller coaster at SeaWorld or Disney's Animal Kingdom is a different story but that is in no way representative of the majority of zoos and not worthy of a generalization so sweeping; not to mention SeaWorld is in a very, very bad position right now and I find it completely understandable why they are reluctant to invest in animal attractions right now. To use that to say all facilities "don't seem to care" is very sad to me.

Shifting away from displaying larger animals in AZA zoos would be a significant change.

There has been a trend, as identified in 3A of the AZA Trends 2023 Report, for habitats to increase in size. This has been in development for a while, and I expect it to continue. There are some notable examples of where that trend has resulted in zoos reducing their species of large animals. For example, the Oregon Zoo stopped displaying river hippos to give more space to their black rhinos
I think this is an extremely significant point. As long as the trend for increasing habitat sizes continues, and by all means it looks like it will, then many zoos will continue to be outdated and many more will continue to be forced to make difficult choices. So many of our US zoos are landlocked and indefinite expansion is impossible. We have seen many zoos collapse outdated big cat, bear and pachyderm exhibits to focus on one or two choice species over the last two or three decades and some facilities are still now just beginning to catch up to these standards that many of us would consider below the bare minimum for today. A lot of these changes that we have seen have been positive, but I am sometimes concerned about the potential of standards rising in the future becoming higher than too many zoos can meet. Can the rate of progression increase in the future if standards increase and lead into a new golden age of high quality exhibits, or will we repeat our current cycle at a slower rate to a much more diminished return with new cynicism?

Your post draws attention to a lot of my overall concerns about US zoos right now very well.

The AZA populations of many smaller species of animals are much more threatened than their larger counterparts. Of course there are some exceptions. On Zoochat there is often discussion about the prevalence of meerkats, red pandas, Asian small clawed otters, ring tailed lemurs, black and white ruffed lemurs, sloths, red-necked wallabies, and perhaps a few more that I'm forgetting. That's seven species of small mammals. All seven species of "big cat" (all 5 Panthera species, cougars, and cheetahs) are well represented in AZA zoos. Are there any small cat species that are as abundant and secure in AZA as any one of those "big cats"? The great apes kept in AZA facilities seem to have stable populations, although more bonobo holders would be helpful. Compare that to all the species of monkeys lost or with declining populations. Lion-tailed macaques are perhaps the most famous of the disappearing AZA monkeys. The Oregon Zoo is down to displaying just one species of monkey.

Returning to the trend of larger habitat sizes, AZA populations of many smaller animals have been disproportionality negatively impacted. I worry much more for the future of many smaller species of animals in AZA zoos than for their larger counterparts.
There was a period where I tried to be vocal about this as a potential issue and it was misunderstood or discussion drifted to other aspects of the problem. I have expressed concern at times the removal of small mammal buildings and dedicated such exhibits has lead to a lot of facilities not keeping small mammals in their collections any longer outside the suspects quoted, and that they did not seem as often integrated in biogeographic complexes at the level that small mammal-dedicated buildings previously did. I always recall someone responding by implying I had some interest in "obscure rodents" which couldn't be farther from the truth; a lot of these are species I ignored as a child and feel some regret for not taking more interest in.

I agree with the point about cats and I would also compare primates and antelope; these are all species-rich groups where the popularity of larger forms that demand specialized care can have an adverse effect on smaller forms, some of whom benefited more in taxonomic exhibits concerned about showcasing group diversity (or species count) than modern bio-geographic complexes where variety is not only preferred but really a necessity of design. Asia is rich in cats, Africa is rich in antelope, both are rich in primates, but a modern complex will probably not want more than a few of these groups, presumably the more popular ones, or risk feeling repetitious or detracting from an intended message. At the same time, smaller zoos could benefit a lot from switching to smaller forms and potentially exhibiting more total species than by focusing on larger cousins, though understandably some may view the larger forms are bigger draws.

It might be wise to see some more zoos take the kind of route that Lincoln Park Zoo took with African Journey -- although the subsequent elephant loss was somewhat unrelated and not part of an immediate phase-out, the pivot away from the large mammal focus in the building really enabled a lot of new reptile, bird and small mammal species to move in, even a few insects, and for the zoo ultimately gained a lot more species than it lost in the process, rather than if the entire building had been transformed into winter holding for a single costly species. Sometimes instead of investing a lot of land into megafauna you could probably do just as well with a lot of small species. These choices should obviously be strategic and thoughtful.

I think Birmingham Wildlife Conservation Park in the UK would be a great collection model for future zoos looking to be less focused on "larger animals" here actually. It has a very impressive small mammal collection for such a small zoo by land area (6.5 acres) with tons of small mammals -- lynx, ocelot, New World monkeys, lemurs, sloths, meerkats, otters, loris, red panda, bush dog, and such -- as well as a few major birds and reptiles and still manages a few larger animals like sitatunga, rhea and Komodo dragon. There are no expensive mega-buildings though there are small indoor viewing areas for a number of species. It's very light on megafauna but a number of the small species are attractive and active and so there is plenty of interest, and given the small size of the facility, a larger one could still start with such a collection and potentially expand outward into larger forms later on.

A lot of these are the questions animating me recently about this hobby.
 
I think using this as a way to claim zoos "just don't seem to care anymore" is excessive, and using the two theme parks as your examples strengthens a generalization about zoos overall considering these are the two institutions most likely to invest in non-zoo types of attractions. There are not "huge sums of money" required for animatronic dinosaurs, playgrounds and Chinese lantern displays; in fact, some zoos seem to be licensing animatronic dinosaur displays from outside companies and are not actually paying for construction costs. Many of them do not have the kinds of daily maintenance costs that are needed to care for live animals which will need food, medicine, training and may break things, and dinosaurs and lantern festivals can bring in additional revenue that normal parts of the collection do not feature.

For some contrast, Brookfield Zoo is spending over $66 million on Tropical Forests, which includes multiple outdoor ape exhibits and monkey habitats. Saint Louis' Destination Discovery children's zoo will cost $40 million. Omaha spent $73 million on African Grasslands which includes a world-class exhibit for elephants. These are huge investments, well worth it, but nonetheless huge, and it's well-known Omaha's $73 million still did not match up to the entirety of their original concept for the exhibit and doesn't account for inflation like what is affecting Tropical Forests, which is much more modest in concept. Even exhibits for bears and tigers can cost tens to twenty million dollars. Every one of these animal exhibits requires daily maintenance so the new costs are not only the process of building an exhibit but keeping it running smoothly. I also often keep in mind the world-famous Bronx Zoo has taken a decade and a half to reopen exhibits closed during the budget crisis; surely the costs must be quite high for such a successful zoo to take so long on that.

So I would say the chances are extremely high that running animatronic dinosaurs and so forth, or building playgrounds, despite distaste for these practices on Zoochat, is actually far less expensive than constructing a new exhibit for animals and keeping it running on an ongoing basis, and therefore probably not eating into the budget for animal exhibits. Building a roller coaster at SeaWorld or Disney's Animal Kingdom is a different story but that is in no way representative of the majority of zoos and not worthy of a generalization so sweeping; not to mention SeaWorld is in a very, very bad position right now and I find it completely understandable why they are reluctant to invest in animal attractions right now. To use that to say all facilities "don't seem to care" is very sad to me.


I think this is an extremely significant point. As long as the trend for increasing habitat sizes continues, and by all means it looks like it will, then many zoos will continue to be outdated and many more will continue to be forced to make difficult choices. So many of our US zoos are landlocked and indefinite expansion is impossible. We have seen many zoos collapse outdated big cat, bear and pachyderm exhibits to focus on one or two choice species over the last two or three decades and some facilities are still now just beginning to catch up to these standards that many of us would consider below the bare minimum for today. A lot of these changes that we have seen have been positive, but I am sometimes concerned about the potential of standards rising in the future becoming higher than too many zoos can meet. Can the rate of progression increase in the future if standards increase and lead into a new golden age of high quality exhibits, or will we repeat our current cycle at a slower rate to a much more diminished return with new cynicism?

Your post draws attention to a lot of my overall concerns about US zoos right now very well.


There was a period where I tried to be vocal about this as a potential issue and it was misunderstood or discussion drifted to other aspects of the problem. I have expressed concern at times the removal of small mammal buildings and dedicated such exhibits has lead to a lot of facilities not keeping small mammals in their collections any longer outside the suspects quoted, and that they did not seem as often integrated in biogeographic complexes at the level that small mammal-dedicated buildings previously did. I always recall someone responding by implying I had some interest in "obscure rodents" which couldn't be farther from the truth; a lot of these are species I ignored as a child and feel some regret for not taking more interest in.

I agree with the point about cats and I would also compare primates and antelope; these are all species-rich groups where the popularity of larger forms that demand specialized care can have an adverse effect on smaller forms, some of whom benefited more in taxonomic exhibits concerned about showcasing group diversity (or species count) than modern bio-geographic complexes where variety is not only preferred but really a necessity of design. Asia is rich in cats, Africa is rich in antelope, both are rich in primates, but a modern complex will probably not want more than a few of these groups, presumably the more popular ones, or risk feeling repetitious or detracting from an intended message. At the same time, smaller zoos could benefit a lot from switching to smaller forms and potentially exhibiting more total species than by focusing on larger cousins, though understandably some may view the larger forms are bigger draws.

It might be wise to see some more zoos take the kind of route that Lincoln Park Zoo took with African Journey -- although the subsequent elephant loss was somewhat unrelated and not part of an immediate phase-out, the pivot away from the large mammal focus in the building really enabled a lot of new reptile, bird and small mammal species to move in, even a few insects, and for the zoo ultimately gained a lot more species than it lost in the process, rather than if the entire building had been transformed into winter holding for a single costly species. Sometimes instead of investing a lot of land into megafauna you could probably do just as well with a lot of small species. These choices should obviously be strategic and thoughtful.

I think Birmingham Wildlife Conservation Park in the UK would be a great collection model for future zoos looking to be less focused on "larger animals" here actually. It has a very impressive small mammal collection for such a small zoo by land area (6.5 acres) with tons of small mammals -- lynx, ocelot, New World monkeys, lemurs, sloths, meerkats, otters, loris, red panda, bush dog, and such -- as well as a few major birds and reptiles and still manages a few larger animals like sitatunga, rhea and Komodo dragon. There are no expensive mega-buildings though there are small indoor viewing areas for a number of species. It's very light on megafauna but a number of the small species are attractive and active and so there is plenty of interest, and given the small size of the facility, a larger one could still start with such a collection and potentially expand outward into larger forms later on.

A lot of these are the questions animating me recently about this hobby.
I can see where you’re coming from, but at the same time I still think that zoological facilities should have some discernment when it comes to what kind of attractions open within their gates. I’m fine with holiday events and traveling shows and the like, but you must admit that it’s a disappointing development when your local zoo decides to expand a rock-climbing area and zip line course while shuttering several aviaries and animal exhibits. My earlier statement about “zoos not caring” was a radical statement that was an easy way of saying that “zoos should focus on conservation instead of ditching animal-related attractions for interesting diversions.
 
I can see where you’re coming from, but at the same time I still think that zoological facilities should have some discernment when it comes to what kind of attractions open within their gates. I’m fine with holiday events and traveling shows and the like, but you must admit that it’s a disappointing development when your local zoo decides to expand a rock-climbing area and zip line course while shuttering several aviaries and animal exhibits. My earlier statement about “zoos not caring” was a radical statement that was an easy way of saying that “zoos should focus on conservation instead of ditching animal-related attractions for interesting diversions.
I think the reality is that your average zoo guest needs "something to do" other than just viewing animals. While many of us on this site could and would easily see the animals open to close, that isn't the case for everyone. By having play areas or pay-to-ride attractions, those people who need a break from the animals can do so and then spend more time at the zoo afterwards, gaining the zoo more revenue. While it can be frustrating to watch zoos "waste" land that could've been used for expansion (I for example was furious when Columbus opted for a splashpad instead of expanding their tiny aquarium building), these non-animal expansions usually aren't that large and in the grand scheme of things don't deter a zoo from expanding their animal exhibits. In fact, some exist to fund those expansions!
 
Something else to consider is that non-animal attractions are much easier to rotate in and out, continually providing visitors with new experiences. Dinosaurs, Chinese lanterns, VR experiences, beer festivals, etc - I hate to admit it, not being especially interested in them, but they do a great job of driving the gate and attracting visitors, and offer a decent ROI. People who already love zoos are going to go to the zoo anyway - these help capture a segment of the public that might not come otherwise, or might not come as often. Animal exhibit-wise, you really can't do all that much with the money that's spent on these attractions
 
I’ve noticed that many zoos have been taking a disappointing drop in quality lately, with many deciding to pour huge sums of money into cheap and interesting diversions such as animatronic dinosaurs, Chinese lantern displays, and heavily themed play areas instead of doing anything for the betterment of their animal residents, or even trying to introduce new species.

I agree, and visitors soon notice and are disappointed that the zoo is stagnating or falling down, despite all these side attractions.

More generally, zoos are about wild animals. A zoo focusing on side displays soon realize that one might make an amusement park not a zoo.

At the very least, playgrounds and attractions could be made to provide fun but serious education, especially about parts of wildlife which living animals at the zoo cannot provide. But it is, unfortunately, rarely the case. I written about it already here:
Zoo of the Future: A Photographic Gallery of Innovation in Zoological Gardens of the World

The AZA populations of many smaller species of animals are much more threatened than their larger counterparts.

The problem is that keeping fewer large animals goes together with keeping fewer small animals, too; more often than not.

The report, interestingly, does not seem to catch up with two trends of European EAZA zoos. First is that EAZA entices new zoos to join, and new holders compensated for old zoos losing large animals. As per @lintworm's excellent thread. The second trend are mixed-species exhibits with allow keeping more species in the same area, especially innovative ones like mixing ungulates with primates or mixing elephants with smaller animals, or mixing carnivores with other species. I written avbout it in this thread:
Zoo of the Future: A Photographic Gallery of Innovation in Zoological Gardens of the World
 
some facilities are still now just beginning to catch up to these standards that many of us would consider below the bare minimum for today. A lot of these changes that we have seen have been positive, but I am sometimes concerned about the potential of standards rising in the future becoming higher than too many zoos can meet.

I think that California Trail at the Oakland Zoo is a particularly interesting case study to talk about increasing exhibit size standards. California Trails covers 56 acres and is the largest and most transformative project in the Oakland Zoo's history. It covers more area than the rest of the Zoo combined! At $70 million USD it cost the majority of an $81 million multi-phase zoo development. It opened pre-pandemic in 2018, and would surely cost much more now. The whole exhibit complex is home to nine species of animal in total; gray wolf, grizzly bear, black bear, mountain lion, bison, jaguar, California condor, bald eagle, and red-tailed hawk. All of the animal exhibits are significantly larger than the typical AZA standard. I applaud the commitment to larger homes for the animals at the Oakland Zoo's California Trail.

It also makes me ponder, what would AZA facilities look like if the whole grounds were made similarly to California Trail? Many AZA facilities have well under 100 acres available to develop, excluding parking. These facilities would not have the room for 2 exhibit complexes like California Trail. If they had the same animal species density as California Trail then the whole zoo would house under 20 species. This extrapolation is not as extreme as you might initially think. The Indianapolis Zoo displays around 30 species of mammals now. They have a bit of aquatic diversity in some of their aquariums in Oceans that keeps their overall species list from looking very small. My local Calgary Zoo is currently holding well under 100 species because they don't have butterflies in the winter. It's a good thing that the Oregon Zoo has an Insect Zoo - even with that they hold about 130 species total. What is Utah's Hogle Zoo planning on doing with their aging Small Animal Building? If they lost that wouldn't they be under 50 species total across their facility? These facilities are all improving their exhibit sizes for their animals. What will happen to their diversity as they pursue bigger exhibits? At what point does low species diversity start to detract from the attractiveness of visiting a popular AZA zoo?
 
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I can see where you’re coming from, but at the same time I still think that zoological facilities should have some discernment when it comes to what kind of attractions open within their gates. I’m fine with holiday events and traveling shows and the like, but you must admit that it’s a disappointing development when your local zoo decides to expand a rock-climbing area and zip line course while shuttering several aviaries and animal exhibits. My earlier statement about “zoos not caring” was a radical statement that was an easy way of saying that “zoos should focus on conservation instead of ditching animal-related attractions for interesting diversions.
I can accept this. Perhaps it's simply a nature of which zoos are on our minds then if some are actively shuttering existing exhibits in comparison. I could perhaps count myself lucky that none of my local facilities feel they have chosen these attractions to the expense of new animal attractions. Milwaukee has not had to shutter aviaries or exhibits to fund their zip-lining course and the attraction doesn't feel like it's taking up potential exhibit space since it's fairly close to the entrance boardwalk and the expanding penguin habitat. Brookfield brought in a ferris wheel this year but also brought in koalas, turtles, and some new species. Lincoln Park sets up a lot of their children's attractions on areas that are wide pathways during the rest of the year so there is no sense of competition between exhibits and other attractions.

Something else to consider is that non-animal attractions are much easier to rotate in and out, continually providing visitors with new experiences. Dinosaurs, Chinese lanterns, VR experiences, beer festivals, etc - I hate to admit it, not being especially interested in them, but they do a great job of driving the gate and attracting visitors, and offer a decent ROI. People who already love zoos are going to go to the zoo anyway - these help capture a segment of the public that might not come otherwise, or might not come as often. Animal exhibit-wise, you really can't do all that much with the money that's spent on these attractions
This was a point I was thinking about but unsure if I understood enough to mention so I really appreciate the insight from someone experienced. They seem relatively (compared to a new exhibit) low cost to set up but also easy to fold away as needed (if new developments become a desire) while also bringing in significant revenue in the short-term.

I think that California Trail at the Oakland Zoo is a particularly interesting case study to talk about increasing exhibit size standards. California Trails covers 56 acres and is the largest and most transformative project in the Oakland Zoo's history. It covers more area than the rest of the Zoo combined! At $70 million USD it cost the majority of an $81 million multi-phase zoo development. It opened pre-pandemic in 2018, and would surely cost much more now. The whole exhibit complex is home to nine species of animal in total; gray wolf, grizzly bear, black bear, mountain lion, bison, jaguar, California condor, bald eagle, and red-tailed hawk. All of the animal exhibits are significantly larger than the typical AZA standard. I applaud the commitment to larger homes for the animals at the Oakland Zoo's California Trail.

It also makes me ponder, what would AZA facilities look like if the whole grounds were made similarly to California Trail? Many AZA facilities have well under 100 acres available to develop, excluding parking. These facilities would not have the room for 2 exhibit complexes like California Trail. If they had the same animal species density as California Trail then the whole zoo would house under 20 species. This extrapolation is not as extreme as you might initially think. The Indianapolis Zoo displays around 30 species of mammals now. They have a bit of aquatic diversity in some of their aquariums in Oceans that keeps their overall species list from looking very small. My local Calgary Zoo is currently holding well under 100 species because they don't have butterflies in the winter. It's a good thing that the Oregon Zoo has an Insect Zoo - even with that they hold about 130 species total. What is Utah's Hogle Zoo planning on doing with their aging Small Animal Building? If they lost that wouldn't they be under 50 species total across their facility? These facilities are all improving their exhibit sizes for their animals. What will happen to their diversity as they pursue bigger exhibits? At what point does low species diversity start to detract from the attractiveness of visiting a popular AZA zoo?
Again, you do an excellent job here capturing my similar concerns - the fact a lot of facilities couldn't fit more than one California Trail very clearly parallels the sort of concern on my mind. It is at once an excellent exhibit and a clear path to follow for larger facilities around the country who can make bold investments in land and finances, but at the same time as wonderful as it is that these zoos can go above and beyond, it's also a standard totally out of reach for many zoos, some of which are smaller than the entire complex, and I'm not sure the kind of innovation that smaller facilities need to thrive is still happening. The improvement of standards and welfare for megafauna in some ways is still keeping the focus on those species, still reinforcing their role as the star attractions that a zoo lives or dies by. There is also the fact current standards will likely continue to progress, which will may mean further increasing standard exhibit sizes for the comfort of animals and guests. California Trails may someday be viewed as the bare minimum rather than above and beyond we see it as today.

This is more of a separate thought off the cuff, but I would have sworn you were wrong about Indianapolis, but then I did the math and wow, right on the dot, I barely reached thirty. I thought very well of the zoo but it surprised me to realize they had such a small collection. Lincoln Park and Milwaukee both average around fifty mammals at least, but both benefit from small mammal houses bolstering the numbers. Brookfield was in the sixties until the last month or so's renovations started. I have long accepted reduced species diversity is a future that is better accepted than fought, of course, but somehow I am a little shocked to quantify it.
 
I would prefer small zoos to keep fewer large animals. A massive enclosure can take up a high percentage of the space in a small zoo, leaving less space for other animals. It is also generally harder to rewild large animals. This leads to some species having thousands of individuals in zoos, while some smaller species, which could be rewilded, are not kept at all
 
Why can't there be some really rich private guy (or a few) with the acreage, teams, time, money, commitment and passion required to responsibly keep and breed these megafauna for conservation purposes? Why are the SSP guys so pesky regarding where their animals go? It's not like you can just have a pet chimp or something and be responsible (that won't end well). They are clearly NOT pets, and yet responsible people like the ones who I describe can't hold them while the AZA facilities can (even if the private people follow the online AZA manuals)?
 
Why can't there be some really rich private guy (or a few) with the acreage, teams, time, money, commitment and passion required to responsibly keep and breed these megafauna for conservation purposes?

There are wealthy private holders just as you describe, several, in fact.

Rum Creek/Center for the Conservation of Tropical Ungulates, White Oak Conservation, Austin Savanna, African Lion Safari, etc.

The problem with private holders is that (With few exceptions) they don't last.

What typically happens is this: After the founder dies, everything falls apart. The founder's heirs either sell everything off (Animals included!) because they don't want the responsibility of continuing their predecessors good work, or they are interested in continuing...

Only to not be able to maintain the same level of success, so things get run into the ground, eventually resulting in bankruptcy being declared and everything being sold off.

Shadow Nursery and Canyon Colorado Equid Sanctuary are two particularly notorious examples. You can read all about what happened to the animals that once called those facilities home after their respective succession crisis came to a head right here on ZooChat.

Hint hint: It's ugly.

Why are the SSP guys so pesky regarding where their animals go?

Because, in the past, when they weren't so picky about what happened to surplus animals, the resulting controversy ended up blowing up in their faces.

I strongly recommend that you read Animal Underworld by Alan Green if you genuinely want to understand why the AZA changed their surplus animal transfer policies.

It's not like you can just have a pet chimp or something and be responsible (that won't end well).

Well, this was certainly one way of telling me that you know nothing about how US exotic animal ownership laws work.

Does the term "Travis the Chimp" mean nothing to you?

They are clearly NOT pets, and yet responsible people like the ones who I describe can't hold them while the AZA facilities can (even if the private people follow the online AZA manuals)?

Uh...

Private citizens absolutely can own primates, even great apes. There's no nationwide ban on them in the US, and some states are stricter than others regarding holding them in captivity.

Hell, in multiple states it's practically a free-for-all! You're allowed to do almost anything that you want so long as you meet (Usually comically minimal) requirements.

I would also like to point out that several of the largest primate sanctuaries situated in the US are entirely privately funded.
 
There are wealthy private holders just as you describe, several, in fact.

Rum Creek/Center for the Conservation of Tropical Ungulates, White Oak Conservation, Austin Savanna, African Lion Safari, etc.

The problem with private holders is that (With few exceptions) they don't last.

What typically happens is this: After the founder dies, everything falls apart. The founder's heirs either sell everything off (Animals included!) because they don't want the responsibility of continuing their predecessors good work, or they are interested in continuing...

Only to not be able to maintain the same level of success, so things get run into the ground, eventually resulting in bankruptcy being declared and everything being sold off.

Shadow Nursery and Canyon Colorado Equid Sanctuary are two particularly notorious examples. You can read all about what happened to the animals that once called those facilities home after their respective succession crisis came to a head right here on ZooChat.

Hint hint: It's ugly.



Because, in the past, when they weren't so picky about what happened to surplus animals, the resulting controversy ended up blowing up in their faces.

I strongly recommend that you read Animal Underworld by Alan Green if you genuinely want to understand why the AZA changed their surplus animal transfer policies.



Well, this was certainly one way of telling me that you know nothing about how US exotic animal ownership laws work.

Does the term "Travis the Chimp" mean nothing to you?



Uh...

Private citizens absolutely can own primates, even great apes. There's no nationwide ban on them in the US, and some states are stricter than others regarding holding them in captivity.

Hell, in multiple states it's practically a free-for-all! You're allowed to do almost anything that you want so long as you meet (Usually comically minimal) requirements.

I would also like to point out that several of the largest primate sanctuaries situated in the US are entirely privately funded.

Cant the SSP people make exceptions for non smugglers
 
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