Results 11 to 20 of about 220,261 (288)

Pitfalls in quantifying species turnover: the residency effect [PDF]

open access: yesFrontiers of Biogeography, 2014
The composition of ecological communities changes continuously through time and space. Understanding this turnover in species composition is a central goal in biogeography, but quantifying species turnover can be problematic.
Kevin Chase Burns
doaj   +6 more sources

Regional species richness determines local species turnover in ferns [PDF]

open access: yesFrontiers of Biogeography, 2020
The question of which factors determine the geographical change in species composition and abundance (turnover and β diversity) has typically been studied at a single scale, so that, e.g., regional-scale factors are used to explain regional turnover. But cross-scale effects are also important to understand species turnover and the spatial distribution ...
Olivares, Ingrid, Kessler, Michael
openaire   +5 more sources

Species and functional trait turnover in response to broad‐scale change and an invasive species [PDF]

open access: yesEcosphere, 2016
AbstractWhile beta diversity has been implicated as a key factor in controlling resilience of communities to stressors, lack of long‐term data sets has limited the study of temporal dynamics of beta diversity. With a time series at two sites in excess of 40 yr, we investigated turnover of both species and functional traits in a system stressed by ...
Hewitt, Judi E.   +5 more
openaire   +4 more sources

Quantifying Assemblage Turnover and Species Contributions at Ecologic Boundaries

open access: yesPLoS ONE, 2013
Not all boundaries, whether stratigraphical or geographical, are marked by species-level changes in community composition. For example, paleodata for some sites do not show readily discernible glacial-interglacial contrasts. Rather, the proportional abundances of species can vary subtly between glacials and interglacials.
Lee-Ann C Hayek, Brent Wilson
openaire   +5 more sources

Marine species turnover but not richness, peaks at the Equator [PDF]

open access: yesProgress in Oceanography, 2023
Turnover in species composition, also called beta diversity, can indicate natural habitat diversity and fragmentation of populations due to environmental stress, such as heatwaves.
Chhaya Chaudhary, Mark John Costello
core   +4 more sources

Effects of Pre-Fire Vegetation on the Post-Fire Plant Community Response to Wildfire along a Successional Gradient in Western Juniper Woodlands

open access: yesFire, 2023
Western juniper was often historically restricted to fire refugia such as rocky outcrops but has since Euro-American settlement expanded into areas previously dominated by sagebrush steppe. Wildfires in developed woodlands have been rare.
Eva K. Strand, Stephen C. Bunting
doaj   +1 more source

Turnover of Putrescine in a Pseudomonas Species [PDF]

open access: yesJournal of Bacteriology, 1972
A Pseudomonas species was found to readily take up labeled putrescine added in trace amounts to any of four growth media, bis-(3-aminopropyl)-amine, 4-aminobutyrate, glucose-NH 3 , and Casamino Acids, although the rate of uptake varied considerably from one medium to another.
R, Michaels, T T, Tchen
openaire   +2 more sources

Filtering Effect of Large Rivers on Primate Distribution in the Brazilian Amazonia

open access: yesFrontiers in Ecology and Evolution, 2022
Over a century after Wallace’s proposition of the riverine barrier hypothesis, the role of rivers in the diversification of species remains a matter of interest in Amazon biogeography.
Ítalo Mourthé   +4 more
doaj   +1 more source

Site-Based Conservation of Terrestrial Bird Species in the Caribbean and Central and South America Under Climate Change

open access: yesFrontiers in Ecology and Evolution, 2021
Two of the principal responses of species to recent climate change have been changes in range and abundance, leading to a global reshuffling of the geographic distribution of species.
Alke Voskamp   +6 more
doaj   +1 more source

Species richness is more important for ecosystem functioning than species turnover along an elevational gradient

open access: yes, 2021
Many experiments have shown that biodiversity enhances ecosystem functioning. However, we have little understanding of how environmental heterogeneity shapes the effect of diversity on ecosystem functioning and to what extent this diversity effect is ...
Njovu, Henry K.   +93 more
core   +2 more sources

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