Christian C. Voigt (Avtor), Miha Krofel (Avtor), V. Menges (Avtor), Bettina Wachter (Avtor), Joerg Melzheimer (Avtor)

Povzetek

Apex predators in terrestrial ecosystems, such as leopards in the African savanna,feed on a wide variety of prey species, yet it is unknown whether individuals spe-cialize on certain prey, and whether specialization changes with body traits. Here,we asked whether individual specialization of adult leopards (Panthera pardus ) var-ies with sex, body mass, body length and age classes. We used the variation ofstable carbon and nitrogen isotope ratios in 643 segments of whiskers as a tempo-ral record of past diets and established isotopic dietary niches for 36 adult leopards(18 males, 18 females). Based on a variance analysis for stable carbon isotoperatios, we found that between-individual variation was larger than within-individualvariation, indicating a high degree of overall specialization within the studied leop-ards. Female adult leopards exhibited larger isotopic dietary niche widths than maleadult leopards. Isotopic niche width did not vary with body mass, body length orage. Our data suggest a difference in the level of specialization between the sexes,which might be explained by more opportunistic feeding of small-sized femaleleopards, most likely connected with a higher use of small prey species of differentisotopic composition. Inter-sexual resource partitioning likely facilitates territorysharing between the sexes.

Ključne besede

leopard;Panthera pardus;plenjenje;prehrana;analiza stabilnih izotopov;Namibija;Afrika;predation;dietary specialization;stable isotope analysis;Namibia;Africa;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL BF - Biotehniška fakulteta
UDK: 630*15:630*14(6-13)
COBISS: 5073318 Povezava se bo odprla v novem oknu
ISSN: 0952-8369
Št. ogledov: 850
Št. prenosov: 901
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: leopard;Panthera pardus;plenjenje;prehrana;analiza stabilnih izotopov;Namibija;Afrika;
Vrsta dela (COBISS): Delo ni kategorizirano
Strani: str. 1-7
Letnik: ǂVol. ǂ306
Zvezek: ǂiss. ǂ1
Čas izdaje: 2018
DOI: 10.1111/jzo.12566
ID: 10930906
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