Sentences with phrase «key food source»

Reptiles are essential components of any ecosystem in which they occur — as key food sources, for example, or as top predators.

It found that as surface water levels decline, salinity increases and affects the availability of brine shrimp and other invertebrates — a key food source for waterbirds.

Before that time, Barkai says, elephants had occupied the area for hundreds of thousands of years and were likely a key food source.

That could extend their vulnerable larval period, or could jeopardize the timing of their development in relation to key food sources, researchers suggested.

In the 1970s and 1980s, for example, researchers argued that reducing certain whale populations would aid stocks of krill, a ubiquitous crustacean in the Southern Ocean that is a key food source for baleen whales and other marine species.

Better numbers, they add, will be essential to developing policies to protect a key food source.

The five species of native black walnut trees and butternut trees are also important ecological components of riparian corridors across the United States where they provide a key food source for wildlife,» explains Seybold.

The expansion uprooted a key food source — agave, the source of tequila — and a flower that towers over the plant when it blooms.

The chemical energy released by geothermal activity could be a key food source for any hypothetical microbes in the ocean beneath Enceladus, given that the little water world is too far from the sun for photosynthesis to be an option.

They are a key food source for many animals, including coyotes, foxes, hawks, eagles, snakes and ferrets.

In the 1970s and 1980s, for example, researchers argued that reducing certain whale populations would aid stocks of krill, a ubiquitous crustacean in the Southern Ocean that is a key food source for baleen whales and other marine species.