Tag Archives: life history

Salamander Population Size Helps Predict Health of Forest Ecosystems and Inform Forest Management Decisions, MU Study Finds

Researchers suggest a balance between timber harvest and conservation biology

COLUMBIA, Mo. – Woodland salamanders are small, lungless amphibians that live in moist, forest habitats throughout the U.S. and the world. Salamanders often serve as vital links in forest food chains; their population size and recovery from major disturbances can help predict the health of forest ecosystems. Now, researchers at the University of Missouri have determined that salamander population size reflects forest habitat quality and can predict how ecosystems recover from forest logging activity. MU researchers believe these findings can be translated to other species within forest ecosystems throughout the world.

“One of our primary interests is in conservation of amphibians and the habitats that they utilize,” said Ray Semlitsch, Curators’ Professor of biological sciences in the College of Arts and Science at MU. “We are trying to understand how land use, and particularly forest management, affects the survival of amphibians on the landscape. We also determined that salamander recovery—or the amount of time it takes for salamanders to repopulate a cut forest area—can help forest managers determine appropriate logging schedules.” (more…)

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Yellowstone Wolf Study Reveals How to Raise Successful Offspring

What are the key ingredients to raising successful, self-sufficient offspring? A new life sciences study using 14 years of data on gray wolves in Yellowstone National Park indicates that cooperative group behavior and a mother’s weight are crucial.

“A female’s body weight is key in the survival of her offspring, and cooperation in the protection and feeding of young pups pays off in terms of the production of offspring,” said Robert Wayne, a professor of ecology and evolutionary biology at UCLA and co-author of the new research, published this week in the online edition of the Journal of Animal Ecology. (more…)

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