Results 31 to 40 of about 531,456 (310)

Contrasting life histories contribute to divergent patterns of genetic diversity and population connectivity in freshwater sculpin fishes

open access: yesBMC Evolutionary Biology, 2018
Background Life history characteristics are considered important factors influencing the evolutionary processes of natural populations, including the patterns of population genetic structure of a species.
Song Yi Baek   +8 more
doaj   +1 more source

Origin of Life: The Point of No Return

open access: yesLife, 2020
Origin of life research is one of the greatest scientific frontiers of mankind. Many hypotheses have been proposed to explain how life began. Although different hypotheses emphasize different initial phenomena, all of them agree around one important ...
Dimiter Kunnev
doaj   +1 more source

Seasonal variation in defense behavior in European and scutellata-hybrid honey bees (Apis mellifera) in Southern California

open access: yesScientific Reports, 2023
Nest defense in the honey bee (Apis mellifera) is a complex collective behavior modulated by various interacting social, environmental, and genetic factors. Scutellata-hybrid (“Africanized”) honey bees are usually considered to be far more defensive than
Daniela Zarate   +3 more
doaj   +1 more source

A Benchmark for Atlantic Salmon Conservation: Genetic Diversity and Structure in a Southern European Glacial Refuge before the Climate Changed

open access: yesFishes, 2023
Atlantic salmon Salmo salar supports highly valuable commercial and recreational fisheries in Europe, but its stocks are currently overexploited and threatened by climate change.
Ana Almodóvar   +5 more
doaj   +1 more source

The influence of immune challenges on the mean and variance in reproductive investment: a meta-analysis of the terminal investment hypothesis

open access: yesBMC Biology, 2023
Finding the optimal balance between survival and reproduction is a central puzzle in life-history theory. The terminal investment hypothesis predicts that when individuals encounter a survival threat that compromises future reproductive potential, they ...
Yong Zhi Foo   +3 more
doaj   +1 more source

Migration dynamics of an important rice pest: The brown planthopper (Nilaparvata lugens) across Asia—Insights from population genomics

open access: yesEvolutionary Applications, 2020
Introduction Brown planthoppers (Nilaparvata lugens) are the most serious insect pests of rice, one of the world's most important staple crops. They reproduce year‐round in the tropical parts of their distribution, but cannot overwinter in the temperate ...
James P. Hereward   +5 more
doaj   +1 more source

Unlearned adaptive responses to heterospecific referential alarm calls in two bird species from separate evolutionary lineages

open access: yesScientific Reports, 2023
The interspecific responses to alarm signals may be based on unlearned mechanisms but research is often constrained by the difficulties in differentiating between unlearned and learned responses in natural situations.
Jungmoon Ha   +12 more
doaj   +1 more source

Changes in the Suitable Habitats of Three Endemic Fishes to Climate Change in Tibet

open access: yesBiology, 2022
As one of the most sensitive regions to global climate change, Tibet is subject to remarkable changes in biota over the past decades, including endemic fish species.
Tong Mu   +4 more
doaj   +1 more source

Evolution, Interactions, and Biological Networks

open access: yesPLoS Biology, 2007
Shifting the perspective of the questions we ask will ensure that network theory continues to excite the network theorists, but more importantly, that it remains vital to progress in biological research.
Weitz, Joshua S.   +2 more
openaire   +6 more sources

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

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