Dietary and temporal partitioning facilitates coexistence of sympatric carnivores in the Everest region

Zhong, Hua; Li, Fengjiao; Díaz-Sacco, Juan José; Shi, Kun

doi:10.1002/ece3.9531

Cited by 2 publications

(1 citation statement)

References 62 publications

(91 reference statements)

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“…The niche differentiation hypothesis states that the body structure, behavior, and resource needs of related sympatric species are very similar, and niche separation is conducive to reducing competition, playing an important role in stable coexistence [8,9]. Two species with completely overlapping ecological niches cannot co-exist in the same domain for a long time [10]. Differentiation in at least one dimension is needed to achieve stable co-existence, such as temporal or trophic niche differentiation [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Trophic Niche Differentiation in Two Sympatric Nuthatch Species (Sitta yunnanensis and Sitta nagaensis)

Guo,

Lu,

Xie

et al. 2024

Animals

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Sympatric closely related species may experience interspecific trophic competition due to ecological similarity; they may isolate in terms of diet or habitat use as a strategy to avoid competition. The body tissues of consumers contain stable isotope signatures information that can be applied to infer their dietary information. In this study, δ13C and δ15N stable isotopes were analyzed to determine the dietary information and trophic niches of sympatric coexisting Sitta yunnanensis and Sitta nagaensis. The results showed that the food sources of S. yunnanensis and S. nagaensis were from six orders, including Orthoptera, and the cumulative contribution rate was 99.97%, with the two species eating similar diets but at different rates. The larger δ13C of S. yunnanensis indicates that it had a wider range of habitats for feeding, while the difference in δ15N values was not significant (p > 0.05), indicating that both species feed on similar nutrient levels. As determined by Bayesian ellipses, the isotopic niches of S. yunnanensis and S. nagaensis were differentiated; the isotopic niche width of S. yunnanensis is 2.69‰2, which was larger than that of S. nagaensis (0.73‰2), indicates that differentiation between the two species in diet or habitat use reduced competition. Trophic niche differentiation and differences in foraging proportions may be the principal resource allocation mechanisms behind S. yunnanensis and S. nagaensis coexistence.

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Section: Introductionmentioning

confidence: 99%

Trophic Niche Differentiation in Two Sympatric Nuthatch Species (Sitta yunnanensis and Sitta nagaensis)

Guo,

Lu,

Xie

et al. 2024

Animals

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Anthropogenic activities facilitate temporal overlaps and spatial partitions among sympatric canids in a human-modified landscape of Bulgaria

Tsunoda,

Peeva,

Raichev

et al. 2024

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Dietary and temporal partitioning facilitates coexistence of sympatric carnivores in the Everest region

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 2 publications

References 62 publications

Trophic Niche Differentiation in Two Sympatric Nuthatch Species (Sitta yunnanensis and Sitta nagaensis)

Trophic Niche Differentiation in Two Sympatric Nuthatch Species (Sitta yunnanensis and Sitta nagaensis)

Anthropogenic activities facilitate temporal overlaps and spatial partitions among sympatric canids in a human-modified landscape of Bulgaria

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