Articles tagged with: Biological Sciences

Global Warming is threatening the Fate of Ancient NZ reptile
Posted in Animals, Earth, Environment, Global warming on 3 July 2008

reptile, Wildlife, Animals, Reptiles, Extinction, Nature, Global Warming, Climate Change, New Zealand, Living Fossils, Earth, Evolution, Biology, Animal Biology, Herpetology, Habitat, Breeding Programs, Conservation, Environment, Science, Biological Sciences, Eco-News, Earth, Centre for Evolutionary Biology, Bone.

Tuatara, the ancient reptile found in New Zealand is under survival threat from none other than global warming. Also, known as a “living fossil” / “living dinosaur”, this reptile has lived on our planet from the past 220 million years! That’s quite a long time. But now, this endangered animal known for its “spiny back” is facing extreme pressure on survival front due to rising global temperatures. The phenomenon of climate change has started showing its true colors in various parts of the world now. In wake of an impending threat to humans due to catastrophic events popping out as a result of both global warming and climate change, one can only imagine what little chance a reptilian species has! Tuatara is one of the oldest and relatively un-evolved species alive today. Commonly mistaken for lizards or mini crocs this animal is very different from the two and has a very primitive bone structure.

Reptiles as such are known for their sensitivity to thermal changes. Mostly being endothermic or cold-blooded creatures, the population of reptiles faces a challenge when their breeding cycles get disturbed owing to fluctuations in temperature. Something similar is happening with this New Zealandian reptile as well. Australian researches predict that with every 3-4 degree rise in air temperature the tuatara will only be able to produce male offspring by 2085. This means complete wipeout of females of the species! The researchers say their finding highlights the need for ways to predict climate change impacts in animals where sex of the offspring is determined by temperature.

Read the full story »