conservation management of a protected dominant scavenger indirectly affects an endangered apex predator
Miha Krofel (Avtor), Klemen Jerina (Avtor)

Povzetek

Interspecific interactions are among the key factors influencing the structure of animal communities and have high relevance for conservation. However, managers, conservationists and decision-makers rarely consider the potential side-effects of single-species carnivore management for the conservation of other carnivores. We studied how management of protected brown bears (Ursus arctos) affected interspecific interactions with an endangered apex predator, the Eurasian lynx (Lynx lynx) in Slovenia. Due to large body size and superb olfactory abilities, bears are one of the most important dominant scavengers and regularly usurp kills from other large predators, a process known as kleptoparasitism. At the same time, bears throughout the world are usually actively managed through zone-specific culling regimes, supplemental feeding, and translocations. This can considerably alter bear densities and activity patterns and in turn influence interactions among carnivores. Overall, we observed that bear scavenging pressure resulted in substantial energetic losses for Eurasian lynx. The probability of lynx losing kills to bears ranged from 8 to 74% and strongly depended on local bear densities and monthly bear movement rates. Kleptoparasitic interaction intensity differed almost 3-fold between different bear management zones. Furthermore, the presence of a bear feeding site increased the odds of lynx losing kills by 5-fold compared to areas >1000 m from these sites. We suggest that existing bear-feeding regimes should be reconsidered in order to reduce unwanted side-effects of this controversial practice on endangered apex predators. We also call attention to the importance of considering impacts of interspecific interactions in wildlife management and conservation.

Ključne besede

evrazijski ris;Lynx lynx;rjavi medved;Ursus arctos;prostoživeče živali;upravljanje s prostoživečimi živalmi;medvrstne interakcije;kleptoparazitizem;trofilne kaskade;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL BF - Biotehniška fakulteta
UDK: 630*15
COBISS: 4328614 Povezava se bo odprla v novem oknu
ISSN: 0006-3207
Št. ogledov: 803
Št. prenosov: 373
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: evrazijski ris;Lynx lynx;rjavi medved;Ursus arctos;prostoživeče živali;upravljanje s prostoživečimi živalmi;medvrstne interakcije;kleptoparazitizem;trofilne kaskade;
Vrsta dela (COBISS): Znanstveno delo
Strani: str. 40-46
Zvezek: ǂVol. ǂ197
Čas izdaje: 2016
DOI: 10.1016/j.biocon.2016.02.019
ID: 10911414
Priporočena dela:
, conservation management of a protected dominant scavenger indirectly affects an endangered apex predator
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, ǂa ǂworldwide perspective
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, 3. vmesno poročilo - spremljanje medvedov in terensko snemanje lokacij