Organismal, population, evolutionary and ecological systems is a research area that investigates biological organization and processes from the level of individual organisms to interacting populations and communities, integrating mechanisms of evolution and ecological dynamics. It encompasses studies of organismal physiology, behavior and life histories; population structure, demography and genetics; evolutionary processes such as selection, drift, gene flow and speciation; and ecological interactions including competition, predation, mutualism and ecosystem functioning. This area emphasizes quantitative, often model-based approaches to understanding how traits, genes, environments and interactions shape biodiversity patterns, adaptive change and the stability and resilience of biological systems across spatial and temporal scales.
Female chickadees living in monogamous mating systems will proactively seek out males that have better cognitive skills than their nest mate, according to new findings.
Evolution
11 hours ago
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5
Pomacea canaliculata, commonly known as the apple snail, is a pest commonly found in Hong Kong's wetlands and farmlands. It feeds on aquatic plants and produces toxic pink egg masses resembling miniature grapes that adhere ...
Evolution
Jun 12, 2026
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Birds in flocks, bacteria and cells: In many collective systems, individual elements respond to only part of their surroundings, seemingly defying Newton's third law of motion—action equals reaction. These exceptions are ...
General Physics
Jun 12, 2026
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A review article now published in Nature Reviews Genetics brings together evolutionary theory, comparative genomics and large-scale human genetics to explain why we age and why aging rates differ among individuals and species. ...
Evolution
Jun 11, 2026
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Using box jellyfish as an example, researchers from Kiel University show how the physics of density, not behavior or physiology, can prevent animals from reaching the surface even as they actively swim upward.
Plants & Animals
Jun 4, 2026
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28
Interactions between hard-shelled marine mollusks such as clams and snails and their predators play a critical but largely unseen role in shaping coastal ecosystems. These organisms help stabilize shorelines, filter water ...
Ecology
Jun 3, 2026
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Black abalone once carpeted the rocky shores of California by the millions. The large, long-lived sea snails sustained Indigenous peoples along the coast for thousands of years, anchored a thriving 20th-century commercial ...
Evolution
Jun 3, 2026
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The question of why females mate with multiple males has long puzzled evolutionary biologists. A new study of African foam-nest tree frogs, led by University of Wollongong (UOW) researchers, reveals polyandry could be the ...
Evolution
Jun 3, 2026
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A new study published in the Journal of Raptor Research, titled "Factors Influencing Nestling Sex Ratios of Suburban and Rural Red-Shouldered Hawks, 2004–2016," finds that hawk parents prioritize producing female offspring ...
Plants & Animals
Jun 2, 2026
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10
As soil health becomes a defining goal of the EU Soil Strategy for 2030, researchers at Aarhus University are rethinking how we model what lives beneath our feet. Their new spatially explicit population model for the soil ...
Ecology
Jun 2, 2026
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