9. Kelp forest, Monterey Bay Aquarium
Plants in zoos
Photo @splendens
Zoos understandably focus on animals. Plants rarely take centre stage, despite their vital role in providing habitat for animals and supporting human life. Aquatic plants are even rarer. In 1984, the Monterey Bay Aquarium became the first one to exhibit a simulated giant kelp forest off the Californian coast. Cultivating kelp is difficult, requiring intense sunlight, water current and fresh water pumped from the sea. The tank is flatter than it appears; behind the first row of kelp lies the wall. Nevertheless, both the tank and diver presentations remain popular after nearly 40 years.
The principles of zoo exhibits seem to have changed since the creation of the kelp tank. Zoos in the late 20. century often had the ideal of showcasing entire habitats, including plants, landscapes and animals. Modern zoos usually don't try to show entire ecosystems. Plants are intended to provide shelter for animals and a pleasing sight for visitors.
Similar exhibits:
Other kelp forest tanks include Aquarium of the Pacific, Birch Aquarium, Macduff Marine Aquarium, Two Oceans Aquarium in Durban and Tokyo Sea Life Park. However, it is not always clear whether the kelp is live or artificial. Unfortunately, I didn't have the chance to see them in person.
Photo
@Westcoastperson
Few other plants are remarkable enough to warrant their own exhibit. They include marimo - the ball-shaped growth form of algae
Aegagropila linnaei.
Photo:
@ISAO
Giant water lilies
Victoria have leaves which can support weight of a person. Giant water lilies in the outdoor pond at Wilhelma zoo are cultivated from seeds every spring and die in winter frosts.
Photo
@Maguari
Among the land plants, the Giant Arum
Amorphophallus titanum is regularly showcased in zoos. It is the largest single inflorescence of any plant of the world. Multiple small flowers are hidden within a rod-shaped leaf.
Photo
@Gigit
However, no zoo or botanical garden grows the biggest single flower of the world,
Rafflesia arnoldi. Rafflesias are parasites of a specific type of lianas,
Tetrastigma, and bloom only once in their lifetime. Rafflesias might be good focus species for the protection of South-East Asian rainforests. They are uncommon, slow growing, and exist as either male or female, requiring simultaneous flowering for propagation. This makes them vulnerable to rainforest fragmentation. Apparently, cultivating the liana and the
Rafflesia is very challenging. What you see quite often are models.
Photo
@Zooish