The number of lemmings (Lemmus lemmus) in the mountains can fluctuate sharply from one year to the next. Years when populations explode are called lemming years. These population explosions are important for many other species. ...
Plants & Animals
Feb 23, 2024
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Researchers report that a single, simplified model can predict population fluctuations in three unrelated realms: urban employment, human gut microbiomes and tropical forests. The model will help economists, ecologists, public ...
Ecology
Oct 25, 2023
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Wageningen scientists have simulated the evolution of biodiversity through a mathematical approach. In doing so, they proved the long-held belief among biologists that biodiversity creates robust ecosystems. The researchers ...
Evolution
Jul 25, 2023
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44
A collaborative study published in PLOS ONE documents the periodic disappearance (and reappearance) of white-lipped peccaries in nine countries in South and Central America. The authors say the population fluctuations may ...
Plants & Animals
Oct 28, 2022
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Extreme weather such as prolonged drought and heavy rainfall is becoming more and more common as the global average temperature rises—and it will only get worse in the coming decades. How will the planet's ecosystems respond?
Plants & Animals
Aug 19, 2022
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An Iowa State University biologist is sounding the alarm for the painted turtle, one of many reptiles for which climate change could prove particularly threatening.
Plants & Animals
Mar 12, 2019
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Seabirds such as gulls can be key indicators of environmental change as their populations respond to shifts in their ocean habitat over time. A new study from The Auk: Ornithological Advances investigates how several species ...
Ecology
Aug 15, 2018
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54
There is remarkable biodiversity in all but the most extreme ecosystems on Earth. When many species are competing for the same finite resource, a theory called competitive exclusion suggests one species will outperform the ...
General Physics
Jan 2, 2018
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(Phys.org)—A pair of researches with the University of Texas has used a new method to infer historical human population size fluctuations based on Single Nucleotide Polymorphism (SNP) data. In their paper published in the ...
Many factors—including climate change, overfishing or loss of food supply—can push a wild animal population to the brink of collapse. Ecologists have long sought ways to measure the risk of such a collapse, which could ...
Ecology
Apr 10, 2013
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