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Mass animal die-offs may be increasing, new research shows

By Guest PostJanuary 20, 2015Naturebiocompatible gel, biopesticide, birds, cancer link, daniel munro, disease carrying mosquitoes, facebook status, fishes, frequency, kuenstliche fluesse, marine invertebrates, mona singh, negativity online, oleksandra shumilova, sea of mutations, stephen rains, wassertransfer megaprojekte

Mass die-offs of animals may be increasing in frequency and — for birds, fishes, and marine invertebrates — in severity as well, according to a study of 727 mass mortality events since 1940.

Despite the ecological importance of individual mass mortality events, in which a larger than normal number of individuals die within a population, little research has been conducted on patterns across mass mortality events. The new study will help researchers better assess trends in mass mortality events and their causes, according to the authors of the paper in the Jan. 12 issue of the Proceedings of the National Academy of Sciences. (more…)

MU Researchers Find Rare Fossilized Embryos More Than 500 Million Years Old

By Guest PostMay 4, 2014Nature, Scienceairway diseases, aviation emissions, cambrian explosion, cambrian period, cchi, evolutionary biology, hubei province, marine invertebrates, mark nichols, matt long, pegasus mission, realitaets check, roboter, south china, wolfram burgard

Study methods may help with future interpretation of evolutionary history.

COLUMBIA, Mo. – The Cambrian Period is a time when most phyla of marine invertebrates first appeared in the fossil record. Also dubbed the “Cambrian explosion,” fossilized records from this time provide glimpses into evolutionary biology when the world’s ecosystems rapidly changed and diversified. Most fossils show the organisms’ skeletal structure, which may or may not give researchers accurate pictures of these prehistoric organisms. Now, researchers at the University of Missouri have found rare, fossilized embryos they believe were undiscovered previously. Their methods of study may help with future interpretation of evolutionary history. (more…)

Ship noise impairs feeding and heightens predation risk for crabs

By Guest PostJuly 23, 2013Environment, Natureandy radford, animal behaviour, behavior, bristol, crabs, ecologically critical effects, ecosystems, feeding, marine invertebrates, metabolic rate, play dead behavior, potential predators, predation risk, ship noise, shore crab, steve simpson, university of exeter

A study published in the journal Animal Behaviour found that the noise of passing ships disrupts feeding for the common shore crab.

Perhaps worse, the team from the Universities of Exeter and Bristol also found that when threatened, crabs took longer to retreat to shelter and lost their natural ‘play dead’ behaviour.

In coastal seas around the world noise caused by humans is a dominant feature, with construction and transportation fundamentally modifying ocean soundscapes.

Working with the same common shore crabs that children delight in catching on crablines in UK harbours, the team found ecologically-critical effects of ship noise-playback on behaviour. (more…)

Tag Archives: marine invertebrates

Mass animal die-offs may be increasing, new research shows

MU Researchers Find Rare Fossilized Embryos More Than 500 Million Years Old

Ship noise impairs feeding and heightens predation risk for crabs