Results 151 to 160 of about 9,628 (222)

Is Deuterium Sequestering by Reactive Carbon Atoms an Important Mechanism to Reduce Deuterium Content in Biological Water?

open access: yesFASEB BioAdvances, Volume 7, Issue 6, June 2025.
Deuterium, a heavy isotope of hydrogen, is universal in nature, but it disrupts the mitochondrial ATPase pumps. One mechanism that biological organisms may use to reduce deuterium levels in the mitochondria is to sequester deuterium bound to carbon atoms in a small set of organic molecules that have a unique configuration to support such trapping ...
Stephanie Seneff   +2 more
wiley   +1 more source

Long‐term population dynamics of an insect in a simple food web under a changing environment

open access: yesJournal of Animal Ecology, Volume 94, Issue 6, Page 1294-1306, June 2025.
This long‐term population study illustrates the complexity of weather effects on insects and how population variability depends on the form of density dependence. Weak regulation leads to long‐term fluctuations without clear traces on short‐term variation. Responses to even drastic changes can be hard to detect without accurate knowledge of mechanisms.
Christer Solbreck, Jonas Knape
wiley   +1 more source

The dissection of tsetse flies [PDF]

open access: yes, 2015
Bila, Céné   +4 more
core  

Trends in Richness and Occupancy of Ugandan Birds and Relation to Local Tree Cover

open access: yesAfrican Journal of Ecology, Volume 63, Issue 4, June 2025.
ABSTRACT Changes in vegetation cover are occurring across sub‐Saharan Africa and can have substantial effects on ecological communities, but limited data make understanding status and trends difficult for many taxa. We surveyed birds for several decades across Uganda using point counts.
Ryan C. Burner   +7 more
wiley   +1 more source

Revisiting concepts of thermal physiology: understanding negative feedback and set‐point in mammals, birds, and lizards

open access: yesBiological Reviews, Volume 100, Issue 3, Page 1317-1346, June 2025.
Abstract The thermoregulatory system of homeothermic endotherms operates to attain thermal equilibrium, that is no net loss or gain of heat, where possible, under a thermal challenge, and not to attain a set‐point or any other target body temperature.
Duncan Mitchell   +5 more
wiley   +1 more source

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