Results 1 to 10 of about 7,354,206 (251)

Understanding spatial distributions: negative density-dependence in prey causes predators to trade-off prey quantity with quality. [PDF]

open access: yesProc Biol Sci, 2016
Negative density-dependence is generally studied within a single trophic level, thereby neglecting its effect on higher trophic levels. The ‘functional response’ couples a predator's intake rate to prey density.
Bijleveld AI   +13 more
europepmc   +3 more sources

Lower within-community variance of negative density dependence increases forest diversity. [PDF]

open access: yesPLoS ONE, 2015
Local abundance of adult trees impedes growth of conspecific seedlings through host-specific enemies, a mechanism first proposed by Janzen and Connell to explain plant diversity in forests.
António Miranda   +2 more
doaj   +2 more sources

Are we missing the forest for the trees? Conspecific negative density dependence in a temperate deciduous forest. [PDF]

open access: yesPLoS ONE, 2021
One of the central goals of ecology is to determine the mechanisms that enable coexistence among species. Evidence is accruing that conspecific negative density dependence (CNDD), the process by which plant seedlings are unable to survive in the area ...
Kathryn E Barry, Stefan A Schnitzer
doaj   +2 more sources

Contribution of conspecific negative density dependence to species diversity is increasing towards low environmental limitation in Japanese forests [PDF]

open access: yesScientific Reports, 2021
Species coexistence is a result of biotic interactions, environmental and historical conditions. The Janzen-Connell hypothesis assumes that conspecific negative density dependence (CNDD) is one of the local processes maintaining high species diversity by
Pavel Fibich   +4 more
doaj   +2 more sources

Negative density dependence regulates two tree species at later life stage in a temperate forest. [PDF]

open access: yesPLoS ONE, 2014
Numerous studies have demonstrated that tree survival is influenced by negative density dependence (NDD) and differences among species in shade tolerance could enhance coexistence via resource partitioning, but it is still unclear how NDD affects tree ...
Tiefeng Piao   +3 more
doaj   +2 more sources

Integrating conspecifics negative density dependence, successional and evolutionary dynamics: Towards a theory of forest diversity [PDF]

open access: yesCommunications Biology
Tree successional diversity is evident even to casual observers and has a well-understood physiological basis. Various life history trade-offs, driven by interspecific variation in a single trait, help maintain this diversity.
Matteo Detto, Stephen Pacala
doaj   +2 more sources

Trees species’ dispersal mode and habitat heterogeneity shape negative density dependence in a temperate forest

open access: yesForest Ecosystems, 2023
Conspecific negative density dependence (CNDD) is a potentially important mechanism in maintaining species diversity. While previous evidence showed habitat heterogeneity and species’ dispersal modes affect the strength of CNDD at early life stages of ...
Lishunan Yang   +7 more
doaj   +3 more sources

Assessing the impact of abiotic and biotic factors on seedling survival in an African montane forest

open access: yesFrontiers in Forests and Global Change, 2023
Tree seedling dynamics underpin subsequent forest structure and diversity as different species/guilds respond variously to abiotic and biotic stresses.
Iveren Abiem   +5 more
doaj   +1 more source

Spatial patterning of Wyoming big sagebrush indicates negative density dependence

open access: yesEcosphere, 2022
Plants reflect resource use in their spatial patterning. Competition for limited resources—such as available soil water in a dryland ecosystem—drives establishment, growth, and mortality, resulting in shifts of spatial arrangement over time.
Damaris A. Chenoweth   +2 more
doaj   +1 more source

Negative density dependence in the mortality and growth of tropical tree seedlings is strong, and primarily caused by fungal pathogens [PDF]

open access: yes, 2021
1. Natural enemies have been implicated as agents of negative density dependence (NDD) in tropical forests, but their relative contributions to NDD, and thus to the maintenance of diversity, are largely unknown. 2.
Hazelwood, Kirstie   +5 more
core   +1 more source

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