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
13
1247
(PhysOrg.com) -- Fluctuations in climate can drastically affect the habitability of marine ecosystems, according to a new study by UCLA scientists that examined the expansion and contraction of low-oxygen zones in the ocean.
Earth Sciences
Jun 17, 2011
7
0
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
0
15
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
0
32
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
2
62
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
2
223
(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
0
0
Climate change is known to affect the population dynamics of single species, such as reindeer or caribou, but the effect of climate at the community level has been much more difficult to document. Now, a group of Norwegian ...
Earth Sciences
Jan 17, 2013
0
0
Another attractive theory falls foul of the facts. A census of trees in rainforests on three continents has confirmed that competition plays a central role in structuring communities. This contradicts the so-called neutral ...
Ecology
Jan 26, 2012
8
0
