more than 320 species of vertebrate land went out

In this study, researchers report that since the beginning of the XVI th century, more than 320 species of vertebrate land went out. Those that remain have seen their population decrease of 25%. In vertebrates, 16-33% are threatened or endangered . Large animals that are part of the "  megafauna  "(elephants, rhinos, polar bears ...) are particularly affected. Indeed, these populations are often more limited than those of smaller animals lower growth rate and offspring. They also typically require extensive habitat to maintain viable populations. But their large mass also makes them prime targets for hunting ...

http://droidmonster.webs.com/apps/blog/show/42534879-max-tegmark-multiverse-explorer-do-not-hesitate-to-think-big
https://mysquidoolenses.wordpress.com/2014/07/31/the-beauty-of-the-archipelago-of-the-bahamas/
http://myandroidstuff.tumblr.com/post/93391946454/the-manufacturing-process-of-the-insulating-film

The consequences of the loss of large animals could be studied locally. For example, in Kenya, researchers looked at the effect of the displacement of species of megafauna (zebras, giraffes , elephants ...) on the evolution of ecosystems . Soon enough, they found that these areas were invaded by rodents . The grass and shrubs grew, there were more seeds and shelter available and less risk of predation. Consequently the number of rodents has doubled, as did ectoparasites carry diseases that lodged.

Butterflies, like other insects play a vital role in pollinating flowers. © Charlesjsharp, Wikimedia Commons , cc by sa 3.0