2017
DOI: 10.1016/j.baae.2017.08.008
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Ecomorphological structure of avian communities changes upon arrival of wintering species

Abstract: Community composition reflects evolutionary and ecological processes such as diversification and species assortment. Communities are generally considered to be saturated, which means that the number of species is maximized and that regulatory mechanisms, such as interspecific competition, prevent the addition of new species. In the tropics, however, species numbers of local bird assemblages double up each winter after the arrival of migratory species, which suggests that a rearrangement of niches occurs. Here … Show more

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Cited by 6 publications
(2 citation statements)
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“…Hence, another alternative is that high-elevation habitats may be less conducive to colonization over macroevolutionary timescales 43 owing to ecological constraints-that is, a lower availability of resources 7 . In other words, it is possible that lineages are equally likely to disperse regardless of the elevation from which they arise, but those elevational bands in which the niche space is wider are more likely to accommodate colonizers 44 . Thus, our results are potentially consistent with the idea that higher ecological limits to coexistence in the lowlands ultimately underlie the EDG in passerine birds 45 .…”
Section: Discussionmentioning
confidence: 99%
“…Hence, another alternative is that high-elevation habitats may be less conducive to colonization over macroevolutionary timescales 43 owing to ecological constraints-that is, a lower availability of resources 7 . In other words, it is possible that lineages are equally likely to disperse regardless of the elevation from which they arise, but those elevational bands in which the niche space is wider are more likely to accommodate colonizers 44 . Thus, our results are potentially consistent with the idea that higher ecological limits to coexistence in the lowlands ultimately underlie the EDG in passerine birds 45 .…”
Section: Discussionmentioning
confidence: 99%
“…The waterbirds then adopt flexible foraging strategies to ensure they find enough food [3]. When waterbird species with similar dietary requirements forage in the same habitat with limited foraging resources, the foraging success rate of the various groups should be lower than that in the presence of a single species due to overlapping ecological niches and inter-specific competition [4]. Therefore, to obtain sufficient food, the foraging efforts of the various groups of water birds should Diversity 2020, 12, 105 2 of 11 be increased [5,6].…”
Section: Introductionmentioning
confidence: 99%