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Pellón JJ, Medina-Espinoza EF, Lim BK, Cornejo F, Medellín RA. Eat what you can, when you can: relatively high arthropod consumption by frugivorous bats in Amazonian Peru. Mamm Biol 2022. [DOI: 10.1007/s42991-022-00327-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Šunje E, Courant J, Vesnić A, Koren T, Lukić Bilela L, Van Damme R. Patterns of variation in dietary composition among four populations of Alpine salamanders (Salamandra atra prenjensis). AMPHIBIA-REPTILIA 2022. [DOI: 10.1163/15685381-bja10100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
In this paper we studied the diet in four allopatric populations of alpine salamanders in the Dinarides (Salamandra atra prenjensis). Food consumption was assessed by stomach flushing while food availability by pitfall traps and netting. We aimed to: (i) assess the realized dietary niche, (ii) investigate prey preferences, (ii) explore individual specialization, clustering and nestedness. All populations have an equally wide dietary span that is among the largest reported for terrestrial salamanders. On the other hand, the amount of ingested prey is rather low compared to other salamander species; the quantity of consumed prey did not differ among populations but younger individuals fed more than adults. Food composition somewhat differed among populations but not among sex/age classes. In all four populations, the bulk of diet consisted of beetles, spiders, snails and millipedes; except for beetles, such prey was also preffered together with centipedes and isopods. For most of the prey categories, the direction of the electivity indices was the same across populations. In none of the populations a nested pattern in the interindividual subdivision of dietary resources was registered. However, indications for individual specialization and modularity were observed disclosing that the broad niche of populations is composed of smaller individual niches that cluster along the dietary axis. Overall, the four populations have very similar structural characteristics of the dietary niche and there is little evidence for local dietary differentiation probably due to the absence of drivers for change.
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Affiliation(s)
- Emina Šunje
- Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71000 Sarajevo, Bosnia and Herzegovina
- Herpetological Association in Bosnia and Herzegovina, ATRA (BH-HU: ATRA), Urijan dedina 137, 71000 Sarajevo, Bosnia and Herzegovina
- Laboratory of Functional Morphology, University of Antwerpen, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Julien Courant
- UMR 7179, Département Adaptation du vivant, Centre National de la Recherche Scientifique (CNRS/MNHN), rue Buffon, 75005 Paris, France
| | - Adi Vesnić
- Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71000 Sarajevo, Bosnia and Herzegovina
| | - Toni Koren
- Hyla Association, Lipovac I, 10000 Zagreb, Croatia
| | - Lada Lukić Bilela
- Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71000 Sarajevo, Bosnia and Herzegovina
| | - Raoul Van Damme
- Laboratory of Functional Morphology, University of Antwerpen, Universiteitsplein 1, 2610 Wilrijk, Belgium
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OUP accepted manuscript. J Mammal 2022. [DOI: 10.1093/jmammal/gyac024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shipley JR, Twining CW. Seasonal dietary niche contraction in coexisting Neotropical frugivorous bats (Stenodermatinae). Biotropica 2020. [DOI: 10.1111/btp.12784] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeremy Ryan Shipley
- Department of Migration and Ecoimmunology Max Planck Institute for Animal Behavior Radolfzell am Bodensee Germany
| | - Cornelia W. Twining
- Department of Migration and Ecoimmunology Max Planck Institute for Animal Behavior Radolfzell am Bodensee Germany
- Limnological Institute University of Konstanz Konstanz Germany
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