Aim: Niche theory proposes that increases in species richness along an environmental gradient are associated with a packing of species inside the niche space or an expansion of the niche space. We ...

This is a preview. Log in through your library . Abstract Premise of research. Recently diverged taxa may not exhibit strong morphological or DNA sequence differences, making evaluating species ...

If current extinction trends continue, global shark populations will lose much of their variety, thereby threatening ...

As a wildlife biologist, with an interest in endangered species protection and conservation, Jackie Hancock had some trepidation about leaving a state parks position and coming to work with the Army. ...

In a twist of fate that couldn't be more perfect for the Halloween season, researchers have discovered that six species of North American bats glow green under UV light. Last year, scientists ...

Nine flower species and three insect species that are designated state species may be at risk of extinction by the 2080s because of the effects of climate change, researchers have found. Two-thirds of ...

Sado Island, Japan, is inhabited by seven species of snakes, the largest number in any isolated island in Japan, except for the subtropical Ryukyu Archipelago. Researchers conducted a 5-year field ...

The rain might make us all a bit miserable, but it can have catastrophic influences on relationships—between birds. A small species of bird known as the Seychelles warbler, which live exclusively on ...