Trophic relationships, such as those between predator and prey or between pathogen and host, are key interactions linking species in ecological food webs. The structure of these links and their strengths have major consequences for the dynamics and stability of food webs.

While sharks instill fear in beachgoers worldwide, they instill a deep sense of curiosity in UT assistant professor and shark expert Dan Huber.

A major challenge for fisheries worldwide is to reduce their impact on non-target or bycatch species.

According to one of the authors of a paper on the findings in the August edition of Frontiers in Ecology and Environment, CSIRO scientist Dr Chris Wilcox, a major challenge for fisheries worldwide is to reduce their impact on ‘bycatch’ species such as seabirds.

For some female iguanas, snaring a prince comes at a price. A team led by Princeton scientists has found that among the marine iguanas of the Galápagos Islands, females spend a great deal of energy picking a mate from their many suitors -- sapping strength the females might have used for finding food, escaping predators or producing eggs.

Fishing industry lines accidentally catch so many seabirds and turtles that their populations are being threatened. One solution offered by a Cornell researcher and an Australian government scientist is to assess fines when threatened species are caught and killed.

Researchers observed the behaviour of Great-tits foraging for artificial prey to understand more clearly how a species evolves to protect themselves from predators.

A tiny, blind, hairless subterranean rodent that lives in social colonies in the harsh, semi-arid conditions of Africa could shed light on stress-related infertility in humans, the 23rd annual meeting of the European Society of Human Reproduction and Embryology will hear.

A tiny single-celled organism that plays a key role in the carbon cycle of cold-water oceans may be a lot smarter than scientists had suspected.

For Peru fishing is a prime source of foreign exchange, second only to mining. The country's anchovy fishing fleet, which seeks the Peruvian anchovy Engraulis ringens, is the world's largest single-species fishery, with an average of 8% of global landings.