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Smells May Help Birds Identify Their Relatives

By Guest PostSeptember 25, 2011Nature, Sciencebirds, brookfield zoo, bryan d neff, chicago zoological society, convergent evolution, heather coffin, humboldt penguins, hunter college, jason watters, jill mateo, mark e hauber, monogamous pairs, penguins, penguins at zoo, potential mate, preen gland, spheniscus humboldti, university of chicago, university of western ontario, zoo

Birds may have a more highly developed sense of smell than researchers previously thought, contend scholars who have found that penguins may use smell to determine if they are related to a potential mate.

The research by the University of Chicago and the Chicago Zoological Society, which manages Brookfield Zoo, shows how related birds are able to recognize each other. The study, published Wednesday, Sept. 21 in the article, “Odor-based Recognition of Familiar and Related Conspecifics: A First Test Conducted on Captive Humboldt Penguins (Spheniscus humboldti),” in the journal PLoS ONE, could help conservationists design programs to help preserve endangered species.

“Smell is likely the primary mechanism for kin recognition to avoid inbreeding within the colony,” said Heather Coffin, lead author of the paper. (more…)

Decline in Species Shows Climate Change Warnings Not Exaggerated

By Guest PostJuly 15, 2011EnvironmentAntarctica, bering sea, birds, bivalve mollusks, boreal forests, climate change, effects of climate change on plant and animal species, Europe, extinction, extinction risk, fenno scandia, global biodiversity, global warming, human induced climate change, ilya maclean, Madagascar, marine mammals, nematode worm, pine grosbeak, population declines, robert wilson, species, spectacled eider, tenerife, tiger salamander populations, two barred crossbill, types of habitat, united states of america, university of exeter, yellowstone national park

One in 10 species could face extinction by the year 2100 if current climate change impacts continue.

This is the result of University of Exeter research, examining studies on the effects of recent climate change on plant and animal species and comparing this with predictions of future declines.

Published in leading journal Proceedings of the National Academy of Sciences, the study uses the well-established IUCN Red List for linking population declines to extinction risk. The research examines nearly 200 predictions of the future effects of climate change from studies conducted around the world, as well as 130 reports of changes which have already occurred. (more…)

Ancient Trash Heaps Gave Rise To Everglades Tree Islands

By Guest PostMarch 24, 2011Environmentalligators, birds, carbonate, charcoal, chmura, ecological richness, Environment, everglades, florida everglades tree islands, gail chmura, garbage mounds, human artifacts, margo schwadron, maria theresia, marshes, nesting site, panthers, perched carbonate layer, prehistoric humans, shark river slough, south florida, tree island, water control systems, wildlife

SANTA FE, N.M.— Garbage mounds left by prehistoric humans might have driven the formation of many of the Florida Everglades’ tree islands, distinctive havens of exceptional ecological richness in the sprawling marsh that are today threatened by human development.

Tree islands are patches of relatively high and dry ground that dot the marshes of the Everglades. Typically a meter (3.3 feet) or so high, many of them are elevated enough to allow trees to grow. They provide a nesting site for alligators and a refuge for birds, panthers, and other wildlife. (more…)

Tag Archives: birds

Smells May Help Birds Identify Their Relatives

Decline in Species Shows Climate Change Warnings Not Exaggerated

Ancient Trash Heaps Gave Rise To Everglades Tree Islands