Results 11 to 20 of about 2,976,908 (302)

Novel variation associated with species range expansion [PDF]

open access: yesBMC Evolutionary Biology, 2010
When species shift their ranges to track climate change, they are almost certain to experience novel environments to which they are poorly adapted. Otaki and co-workers document an explosion of wing pattern variation accompanying range expansion in the ...
Pomiankowski Andrew   +2 more
doaj   +6 more sources

Evaluating range-expansion models for calculating nonnative species' expansion rate [PDF]

open access: yesEcology and Evolution, 2014
Species range shifts associated with environmental change or biological invasions are increasingly important study areas. However, quantifying range expansion rates may be heavily influenced by methodology and/or sampling bias. We compared expansion rate
Bellmann H.   +7 more
core   +7 more sources

Range Expansion of Heterogeneous Populations [PDF]

open access: yesPhysical Review Letters, 2014
Risk spreading in bacterial populations is generally regarded as a strategy to maximize survival. Here, we study its role during range expansion of a genetically diverse population where growth and motility are two alternative traits. We find that during the initial expansion phase fast growing cells do have a selective advantage.
Reiter, Matthias   +2 more
openaire   +3 more sources

Protected areas facilitate species’ range expansions [PDF]

open access: yesProceedings of the National Academy of Sciences, 2012
The benefits of protected areas (PAs) for biodiversity have been questioned in the context of climate change because PAs are static, whereas the distributions of species are dynamic. Current PAs may, however, continue to be important if they provide suitable locations for species to colonize at their leading-edge range boundaries, thereby enabling ...
Thomas, Chris D.   +21 more
openaire   +4 more sources

Interspecific competition slows range expansion and shapes range boundaries [PDF]

open access: yesProceedings of the National Academy of Sciences, 2020
Significance Range expansion is how invasive species spread and how species track habitats shifting from climate change, so understanding this process is a key applied and basic challenge. Ecologists have long theorized that a competitor can slow or even halt range expansion.
Geoffrey Legault   +3 more
openaire   +2 more sources

Walleye pollock Gadus chalcogrammus Pallas, 1814 found north of Spitsbergen indicates a Pacific-Atlantic connection in the species

open access: yesFauna Norvegica, 2020
A small (36.5 cm) female walleye pollock Gadus chalcogrammus Pallas, 1814 was caught north of Spitsbergen in 2011. The specimen had a high number of pyloric caeca (n=109), indicating a Pacific origin.
Ingvar Byrkjedal, Gunnar Langhelle
doaj   +1 more source

Testing consistency of modelled predictions of the impact of climate change on bats

open access: yesClimate Change Ecology, 2021
Species Distribution Models (SDMs) are a cornerstone of climate change conservation research but temporal extrapolations into future climate scenarios cannot be verified until later this century.
Natasha E. McGowan   +6 more
doaj   +1 more source

Eco‐evolutionary dynamics of range expansion

open access: yesEcology, 2020
AbstractUnderstanding the movement of species’ ranges is a classic ecological problem that takes on urgency in this era of global change. Historically treated as a purely ecological process, range expansion is now understood to involve eco‐evolutionary feedbacks due to spatial genetic structure that emerges as populations spread.
Tom E. X. Miller   +13 more
openaire   +4 more sources

Population dynamics and range expansion in nine-banded armadillos. [PDF]

open access: yesPLoS ONE, 2013
Understanding why certain species can successfully colonize new areas while others do not is a central question in ecology. The nine-banded armadillo (Dasypus novemcinctus) is a conspicuous example of a successful invader, having colonized much of the ...
William J Loughry   +3 more
doaj   +1 more source

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