predators

07/05/2013 - 10:48

An endangered species of Madagascan lemur uses the alarm calls of birds and other lemurs to warn it of the presence of predators, a new study by researchers from the University of Bristol and Bristol Zoo with the University of Torino has found. This is the first time this phenomenon has been observed in a solitary and nocturnal lemur species.

 

06/21/2013 - 12:36

Scientists have long known that seeds gobbled by birds and dispersed across the landscape tend to fare better than those that fall near parent plants where seed-hungry predators and pathogens are more concentrated.

 

07/10/2012 - 08:16

Minute amounts of copper from brake linings and mining operations can affect salmon to where they are easily eaten by predators, says a Washington State University researcher. Jenifer McIntyre found the metal affects salmon's sense of smell so much that they won't detect a compound that ordinarily alerts them to be still and wary.

04/12/2012 - 09:35

A type of caterpillar which defends itself by regurgitating on its predators is less likely to do so when in groups than when alone, a new study by researchers from the University of Liverpool and the University of Bristol has found. Such reluctance is sufficient to cancel out the benefits of being in a group. The study, published in Ecology Letters, will help in the design of more sustainable methods for reducing crop losses caused by caterpillars and similar pests.

02/08/2012 - 23:58

Imagine an environment filled with wind, storms, predators, noise, and limited food and shelter. Then imagine providing and caring for a tiny egg or peeping baby bird in those conditions. The tree swallow and most other wild birds face these stressful challenges on a day-to-day basis. 

01/04/2012 - 23:06

The toothiest prehistoric predators also had beefier arm bones, according to results of a study published today in the journal Paleobiology.