The purpose of this comment is to update and reiterate the proposed breeding pairs, to provide an explanation for the choosing of these breeding recommendations, and to reevaluate the importation of elephants from Europe.
After reviewing the proposed breeding pairs, there are some recommendations that should be altered due to changes within the population or lack of probability. Because of these revisions, the proposed breeding pairs will now consist of 27 achievable breeding pairs and 1 undetermined breeding pair. Following each pair will be an explanation of why the match were recommended to breed and how the match will come together.
The 27 achievable breeding pairs are:
Billy (Los Angeles Zoo) & Rose Tu (Oregon Zoo)
• Billy is genetically valuable and unrepresented within the population.
• Rose Tu is genetically valuable despite some family relations.
• Billy should be transferred from the Los Angeles Zoo to the Oregon Zoo to breed with Rose Tu.
Groucho (Denver Zoo) & Rasha (Fort Worth Zoo)
• Groucho is genetically valuable and has only produced offspring with Rasha.
• Rasha is genetically valuable and has only produced offspring with Groucho.
• Groucho should be transferred from the Denver Zoo to the Fort Worth Zoo to breed with Rasha.
Spike (Smithsonian National Zoo) & Maharani (Smithsonian National Zoo)
• Spike is genetically valuable and unrepresented within the population.
• Maharani is considerably valuable despite some family relations.
• Spike and Maharani have been successfully paired.
Rex (Oklahoma City Zoo) & Natasha (African Lion Safari)
• Rex is genetically valuable and has already produced offspring with Natasha.
• Natasha is considerably valuable and has already produced offspring with Rex.
• Rex should be transferred from the Oklahoma City Zoo to African Lion Safari to breed with Natasha.
Sabu (Cincinnati Zoo) & Rozana (Albuquerque Zoo)
• Sabu is genetically valuable and unrepresented within the population.
• Rozana is genetically valuable despite some family relations.
• Sabu should be transferred from the Cincinnati Zoo to the Albuquerque Zoo to breed with Rozana.
Thai (Houston Zoo) & Tess (Houston Zoo)
• Thai is genetically valuable and has already produced offspring with Tess.
• Tess is genetically valuable and has already produced offspring with Thai.
• Thai and Tess have been successfully paired.
Bodhi (Denver Zoo) & Bluebonnet (Fort Worth Zoo)
Beco (Columbus Zoo) & Belle (Fort Worth Zoo)
• Bodhi and Beco are full brothers and are genetically valuable through their father Coco.
• Bluebonnet and Belle are full sisters and are genetically valuable through both their parents.
• Bodhi should be transferred from the Denver Zoo to the Fort Worth Zoo to breed with Bluebonnet.
• Beco should be transferred from the Columbus Zoo to the Fort Worth Zoo to breed with Belle.
Raja (Saint Louis Zoo) & Rani (Saint Louis Zoo)
Raja (Saint Louis Zoo) & Kirina (Rosamond Gifford Zoo)
Raja (Saint Louis Zoo) & Mali (Rosamond Gifford Zoo)
• Raja is considerably valuable despite some family relations and has already produced offspring with Rani.
• Rani, Kirina, and Mali are half sisters through their father Indy so breeding all three to a single bull would simplify family relations.
• Raja should have primary residence at the Saint Louis Zoo to breed with Rani.
• Raja should have secondary residence at the Dickerson Park Zoo to breed with Kirina and Mali while Kirina and Mali, along with their matriarchal herd members, should be transferred from the Rosamond Gifford Zoo to the Dickerson Park Zoo to breed with Raja.
Sneezy (Tulsa Zoo) & Shanti (Houston Zoo)
Sneezy (Tulsa Zoo) & Asha (Oklahoma City Zoo)
Sneezy (Tulsa Zoo) & Chandra (Oklahoma City Zoo)
• Sneezy is genetically valuable and unrepresented within the population.
• Shanti, Asha, and Chandra are half sisters through their father Onyx so breeding all three to a single bull would simplify family relations.
• Sneezy should have secondary residence at the Tulsa Zoo to breed with Shanti while Shanti, along with her matriarchal herd members, should be transferred from the Houston Zoo to the Tulsa Zoo to breed with Sneezy.
• Sneezy should be transferred from the Tulsa Zoo to the Oklahoma City Zoo to breed with Asha and Chandra and have primary residence at the Oklahoma City Zoo.
Samson (Oregon Zoo) & Angelica (Center for Elephant Conservation)
Samson (Oregon Zoo) & Sara (Center for Elephant Conservation)
Johnson (African Lion Safari) & Asha (Center for Elephant Conservation)
Johnson (African Lion Safari) & April (Center for Elephant Conservation)
Kandula (Oklahoma City Zoo) & Rudy (Columbus Zoo)
Kandula (Oklahoma City Zoo) & Sundara (Columbus Zoo)
• Samson, Johnson, and Kandula share the same father Calvin so breeding all three to females who are interrelated would simplify family relations.
• Angelica, Sara, Asha, April, Rudy, and Sundara share the same father Charlie so breeding all six to males who are interrelated would simplify family relations.
• Samson should be transferred from the Oregon Zoo to the Columbus Zoo to breed with Angelica and Sara while Angelica and Sara, along with their matriarchal herd members, should be transferred from the Center for Elephant Conservation to the Columbus Zoo to breed with Samson.
• Johnson should be transferred from African Lion Safari to the Cincinnati Zoo to breed with Asha and April while Asha and April, along with their matriarchal herd members, should be transferred from the Center for Elephant Conservation to the Cincinnati Zoo to breed with Johnson.
• Kandula should be transferred from the Oklahoma City Zoo to the Rosamond Gifford Zoo to breed with Rudy and Sundara while Rudy and Sundara, along with their matriarchal herd members, should be transferred from the Columbus Zoo to the Rosamond Gifford Zoo to breed with Kandula.
Romeo (Fort Worth Zoo) & Bonnie (Center for Elephant Conservation)
Romeo (Fort Worth Zoo) & Shirley (Center for Elephant Conservation)
Romeo (Fort Worth Zoo) & Kelly Ann (Center for Elephant Conservation)
• Romeo has already produced offspring with Shirley so breeding him to females who share the father Vance would simply family relations.
• Bonnie, Shirley, and Kelly Ann are half sisters through their father Vance so breeding all three to a single bull would simplify family relations.
• Romeo should be transferred from the Fort Worth Zoo to the Houston Zoo to breed with Bonnie and Shirley while Bonnie and Shirley, along with their matriarchal herd members, should be transferred from the Center for Elephant Conservation to the Houston Zoo to breed with Romeo.
• In the best interest of Romeo and Kelly Ann, artificial insemination should be considered as Romeo should be transferred from from the Fort Worth Zoo to the Houston Zoo to breed with Shirley and Bonnie while Kelly Ann should be transferred from the Center for Elephant Conservation to the Rosamond Gifford Zoo to stay with her matriarchal herd members.
Jake (African Lion Safari) & Mable (Center for Elephant Conservation)
Jake (African Lion Safari) & Piper (Center for Elephant Conservation)
• Jake is considerably valuable despite some family relations.
• Mable and Piper are full sisters so breeding both to a single bull would simplify family relations.
• Jake should be transferred from African Lion Safari to the Houston Zoo to breed with Mable and Piper while Mable And Piper, along with their matriarchal herd members, should be transferred from the Center for Elephant Conservation to the Houston Zoo to breed with Jake.
Obert (Endangered Ark Foundation) & Opal (African Lion Safari)
• Obert is genetically valuable despite some family relations.
• Opal is considerably valuable despite some family relations.
• Obert should be transferred from the Endangered Ark Foundation to African Lion Safari to breed with Opal.
Ongard (Miami Zoo) & Tupelo (Houston Zoo)
• Ongard is genetically valuable and unrepresented within the population.
• Tupelo is genetically valuable despite some family relations.
• Ongard should be transferred from the Miami Zoo to the Houston Zoo to breed with Tupelo.
The 1 undetermined breeding pair is:
Young European Bull (European Location) & Jade (Saint Louis Zoo)
• Pairing Jade with a potential mate has become complex due to the passing of Kenzi. Because Jade and Kenzi were only four years apart in age, pairing both with a single male would have simplified breeding. With the recommendation to breed Raja and Rani, Jade and any female offspring produced by Raja and Rani will be more than a decade apart in age. Because of the circumstances, Jade should be paired with a European bull who is recommended for importation and the brother of that bull should breed with any female offspring produced by Raja and Rani.
To reiterate, these breeding pairs are audacious but with such a small breeding population, bold measures must be taken to guarantee a viable population.
After reviewing the recommendations made to import elephants from Europe, there are some recommendations that should be altered due to changes within the North American and European population. Because of these revisions, there are now 4 male elephants that would significantly contribute to the North American population.
The 4 male elephants are:
1.0 Ananda Yingthway (Radza x Htoo Yin Aye) 2008-02-25 (Maubeuge Zoo)
1.0 Rajendra (Sang Raja x Tong Koon) 2011-04-08 (Cologne Zoo)
1.0 Thuya (Radza x Htoo Yin Aye) 2013-07-15 (Dierenrijk)
1.0 Kitai (Sang Raja x Tong Koon) 2017-06-08 (Cologne Zoo)
The importation of these 4 male elephants could be a costly and risky endeavor but the outcome would bolster the genetic diversity of Asian elephants in North America. The following males were selected because of their younger age, relations through family lineage, and enhanced opportunity to breed in the North American population.
Ultimately, the sustainability of the Asian elephant population in North America will be dictated by the collaboration of zoological institutions in North America and Europe and fundamentally the reproduction of the species.