Results 11 to 20 of about 217,153 (254)
Conspecific negative density dependence in American beech [PDF]
Forest 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
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Ecology and Evolution, 2022 Density dependence in reproduction plays an important role in stabilizing population dynamics via immediate negative feedback from population density to reproductive output.
Guozhen Shang +5 more
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Negative density-dependent parasitism in a group-living carnivore [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2020 Animals living at high population densities commonly experience greater exposure to disease, leading to increased parasite burdens. However, social animals can benefit immunologically and hygienically from cooperation, and individuals may alter their socio-spatial behaviour in response to infection, both of which could counteract ...
Macdonald, D +5 more
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Dispersal evolution diminishes the negative density dependence in dispersal [PDF]
Evolution, 2020 ABSTRACT In many organisms, dispersal varies with the local population density. Such patterns of density-dependent dispersal (DDD) are expected to shape the dynamics, spatial spread and invasiveness of populations.
Abhishek Mishra +2 more
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Scale‐dependent effects of conspecific negative density dependence and immigration on biodiversity maintenance [PDF]
Oikos, 2020 Conspecific negative density dependence (CNDD) has been highlighted as a main driver of biodiversity maintenance. However, while there is general consensus on the scale‐dependent and interacting nature of ecological processes, there is limited knowledge about the relative importance of CNDD across spatial scales and on its interaction with other ...
Felix May +3 more
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Evolution of positive and negative density-dependent dispersal [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2014 Understanding the evolution of density-dependent dispersal strategies has been a major challenge for evolutionary ecologists. Some existing models suggest that selection should favour positive and others negative density-dependence in dispersal. Here, we develop a general model that shows how and why selection may shift from positive to negative ...
António M M, Rodrigues +1 more
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Negative density‐dependent dispersal emerges from the joint evolution of density‐ and body condition‐dependent dispersal strategies [PDF]
Evolution, 2020 Empirical studies have documented both positive and negative density-dependent dispersal, yet most theoretical models predict positive density dependence as a mechanism to avoid competition. Several hypotheses have been proposed to explain the occurrence of negative density-dependent dispersal, but few of these have been formally modeled.
Celina B. Baines +3 more
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High temperature intensifies negative density dependence of fitness in red flour beetles. [PDF]
Ecol Evol, 2015 AbstractCompetition for food, space, or other depletable resources has strong impacts on the fitness of organisms and can lead to a pattern known as negative density dependence, where fitness decreases as population density increases. Yet, many resources that have strong impacts on fitness are nondepletable (e.g., moisture or temperature). How do these
Halliday WD, Thomas AS, Blouin-Demers G.
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Comment on “Conspecific Negative Density Dependence and Forest Diversity” [PDF]
Science, 2012 Johnson and colleagues (Reports, 18 May 2012, p. 904) claim that conspecific negative density dependence is a pervasive mechanism driving forest diversity, especially for rare tree species. We show that their results are due to a statistical bias in their analysis caused by the exclusion of joint absences.
Ian A, Dickie +2 more
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Sapling growth rates reveal conspecific negative density dependence in a temperate forest. [PDF]
Ecol Evol, 2017 AbstractLocal tree species diversity is maintained in part by conspecific negative density dependence (CNDD). This pervasive mechanism occurs in a variety of forms and ecosystems, but research to date has been heavily skewed toward tree seedling survival in tropical forests.
Ramage BS +6 more
europepmc +5 more sources