Results 21 to 30 of about 1,184,184 (365)

Trap efficiency evaluation for small mammals in the southern Amazon [PDF]

open access: yesActa Amazonica, 2015
The effectiveness of ecological researches on small mammals strongly depends on trapping techniques to survey communities and populations accurately. The main goal of this study was to assess the efficiency of three types of traps (Sherman, Tomahawk and ...
Manoel dos SANTOS-FILHO   +3 more
doaj   +1 more source

Chaotic turnover of rare and abundant species in a strongly interacting model community [PDF]

open access: yesPNAS 121(11) e2312822121, 2024, 2023
The composition of ecological communities varies not only between different locations but also in time. Understanding the fundamental processes that drive species towards rarity or abundance is crucial to assessing ecosystem resilience and adaptation to changing environmental conditions.
arxiv   +1 more source

Functional Traits Are Good Predictors of Tree Species Abundance Across 101 Subtropical Forest Species in China

open access: yesFrontiers in Plant Science, 2021
What causes variation in species abundance for a given site remains a central question in community ecology. Foundational to trait-based ecology is the expectation that functional traits determine species abundance. However, the relative success of using
Ronghua Li   +12 more
doaj   +1 more source

Abundance and ecological associations of small mammals [PDF]

open access: yesThe Journal of Wildlife Management, 2019
ABSTRACTEffective conservation and management of small mammals require knowledge of the population dynamics of co‐occurring species. We estimated the abundances, autocorrelations, and spatiotemporal associations of 4 small‐mammal species from 2011–2016 using live‐trapping mark‐recapture methods on 9 sites across elevation and canopy openness gradients ...
Matthew J. Weldy   +5 more
openaire   +2 more sources

An equation of state unifies diversity, productivity, abundance and biomass

open access: yesCommunications Biology, 2022
To advance understanding of biodiversity and ecosystem function, ecologists seek widely applicable relationships among species diversity and other ecosystem characteristics such as species productivity, biomass, and abundance.
J. Harte   +3 more
semanticscholar   +1 more source

Integrating multiple sources of ecological data to unveil macroscale species abundance

open access: yesNature Communications, 2020
Measurement of species abundance is fundamental in ecology, yet challenging at large spatial scales. Here, the authors show estimates of abundance of 1248 woody plant species over the East Asian islands that highlight macroevolutionary processes of ...
Keiichi Fukaya   +4 more
doaj   +1 more source

Global abundance estimates for 9,700 bird species

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance For the fields of ecology, evolutionary biology, and conservation, abundance estimates of organisms are essential. Quantifying abundance, however, is difficult and time consuming.
C. Callaghan   +2 more
semanticscholar   +1 more source

Stochastic model for the species abundance problem in an ecological community [PDF]

open access: yesPhysical Review E, 2004
We propose a model based on coupled multiplicative stochastic processes to understand the dynamics of competing species in an ecosystem. This process can be conveniently described by a Fokker-Planck equation. We provide an analytical expression for the marginalized stationary distribution.
PIGOLOTTI S, FLAMMINI A, MARITAN, AMOS
openaire   +5 more sources

PHYTOPERIPHYTON OF THE KOVDA RIVER AND ITS TRIBUTARIES

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2019
Attached algal communities (phytoperiphyton) in the Kovda River and its 18 tributaries were studied, including the analysis of their taxonomic composition, ecology and spatial distribution.
Sergey Komulainen
doaj   +1 more source

Shift in the microbial ecology of a hospital hot water system following the introduction of an on-site monochloramine disinfection system. [PDF]

open access: yesPLoS ONE, 2014
Drinking water distribution systems, including premise plumbing, contain a diverse microbiological community that may include opportunistic pathogens.
Julianne L Baron   +4 more
doaj   +1 more source

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