Causes of Amphibian Declines A striking feature of amphibian population declines, and what sets them apart from the general biodiversity crisis, is that they have occurred in some of the best-protected natural areas. For example, Sierra Nevada Yellow-legged Frogs have disappeared from wilderness area...
Batrachochytrium dendrobatidis, is in the chytrid family of fungi and is the only member known to be a pathogen (cause of disease) to vertebrates. The discovery of the chytrid fungus proved to be a turning point, and now disease, particularly...
5.In 1998 scientists discovered a previously unknown fungus that was associated with frog die-off in both Australia and Panama. The fungus, Batrachochytrium dendrobatidis, is in the chytrid family of fungi and is the only member known to be a pathogen (cause of disease) to vertebrates. The di...
如今,鳟鱼在孵化场饲养,然后用飞机送到西部山脉的偏远地区。鳟鱼是重捕食者,会吃掉蝌蚪和成年青蛙,所以它们很容易成为某些数量下降的原因。虽然鳟鱼等引入物种对某些两栖动物物种有重大的负面影响,但科学家们得出的结论是,它们并不是迅速减少的主要原因。长期以来,人们一直认为紫外线辐射的增加在下降中起着一定的作用,...
1.A striking feature of amphibian population declines, and what sets them apart from the general biodiversity crisis, is that they have occurred in some of the best-protected natural areas. For example, Sierra Nevada Yellow-legged Frogs have disappeared from wilderness areas high in the United St...
所属专辑:托福阅读 音频列表 1 TF099-The Price Revolution 54 2023-03 2 TF098-Causes of Amphibian Declines 26 2023-03 3 TF097-Why Did Agriculture Begin 21 2023-03 4 TF096-The Switch to coal 64 2023-03 5 TF095-Early Astronomy 82 ...
1.A striking feature of amphibian population declines, and what sets them apart from the general biodiversity crisis, is that they have occurred in some of the best-protected natural areas. For example, Sierra Nevada Yellow-legged Frogs have disappeared from wilderness areas high in the United St...
A striking feature of amphibian population declines, and what sets them apart from the general biodiversity crisis, is that they have occurred in some of the best-protected natural areas. For example, Sierra Nevada Yellow-legged Frogs have disappeared from wilderness areas high in the United States...
Causes of Amphibian Declines A striking feature of amphibian population declines, and what sets them apart from the general biodiversity crisis, is that they have occurred in some of the best-protected natural areas. For example, Sierra Nevada Yellow-legged Frogs have disappeared from wilderness ...