Results 11 to 20 of about 7,354,206 (251)

Estimating competition in metacommunities: accounting for biases caused by dispersal

open access: yesMethods in Ecology and Evolution, 2023
Estimating the strength of interactions among species in natural communities has always been a challenge for empirical ecologists. Sessile organisms, like plants or corals, often occur in metacommunities where they compete only with their immediate ...
Liang Xu   +3 more
doaj   +1 more source

Including tree spatial extension in the evaluation of neighborhood competition effects in Bornean rain forest

open access: yesEcology and Evolution, 2021
Classical tree neighborhood models use size variables acting at point distances. In a new approach here, trees were spatially extended as a function of their crown sizes, represented impressionistically as points within crown areas.
David M. Newbery, Peter Stoll
doaj   +1 more source

Environmental context alters the magnitude of conspecific negative density dependence in a temperate forest

open access: yesEcosphere, 2021
Conspecific negative density dependence (CNDD) is an important driver of stand‐level tree diversity in temperate forests. CNDD can occur via two main processes.
Alissa J. Brown   +2 more
doaj   +1 more source

Seedling survival simultaneously determined by conspecific, heterospecific, and phylogenetically related neighbors and habitat heterogeneity in a subtropical forest in Taiwan

open access: yesEcology and Evolution, 2022
Density dependence and habitat heterogeneity have been recognized as important driving mechanisms that shape the patterns of seedling survival and promote species coexistence in species‐rich forests. In this study, we evaluated the relative importance of
Teng‐He Huang   +3 more
doaj   +1 more source

Positive density dependence acting on mortality can help maintain species-rich communities

open access: yeseLife, 2020
Conspecific negative density dependence is ubiquitous and has long been recognized as an important factor favoring the coexistence of competing species at local scale.
Thomas G Aubier
doaj   +1 more source

Immigration Rates during Population Density Reduction in a Coral Reef Fish. [PDF]

open access: yesPLoS ONE, 2016
Although the importance of density-dependent dispersal has been recognized in theory, few empirical studies have examined how immigration changes over a wide range of densities.
Katrine Turgeon, Donald L Kramer
doaj   +1 more source

Conspecific negative density dependence in American beech

open access: yesForest Ecosystems, 2017
Background One of the most important drivers of forest biodiversity is conspecific negative density dependence (CNDD), a reduction in performance when conspecific densities are high.
Benjamin S. Ramage, Isabel J. Mangana
doaj   +1 more source

A test of the Janzen‐Connell hypothesis in a species‐rich Mediterranean woodland

open access: yesEcosphere, 2021
The Janzen‐Connell (JC) hypothesis predicts that conspecific negative density dependence contributes to the maintenance of plant diversity by lowering the recruitment of locally abundant plant species. The JC hypothesis is a widely evoked explanation for
François P. Teste, Etienne Laliberté
doaj   +1 more source

Relating the Strength of Density Dependence and the Spatial Distribution of Individuals

open access: yesFrontiers in Ecology and Evolution, 2021
Spatial patterns in ecology contain useful information about underlying mechanisms and processes. Although there are many summary statistics used to quantify these spatial patterns, there are far fewer models that directly link explicit ecological ...
Micah Brush, John Harte
doaj   +1 more source

SPATIAL AUTOCORRELATION OF PHYSICAL ATTRIBUTES OF AN OXISOL [PDF]

open access: yesEngenharia Agrícola, 2021
Studies that seek to identify a smaller number of soil attributes that represent others can generate less expenditure of time and financial resources for monitoring cultivated areas.
Job T. de Oliveira   +3 more
doaj   +1 more source

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