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    • Rangeland Ecology & Management, Volume 65 (2012)
    • Rangeland Ecology & Management, Volume 65, Number 3 (May 2012)
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    Behavioral Interference Between Sympatric Reindeer and Domesticated Sheep in Norway

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    Author
    Colman, Jonathan E.
    Tsegaye, Diress
    Pedersen, Christian
    Eidesen, Ruben
    Arntsen, Herbjørg
    Holand, Øystein
    Mann, Alex
    Reimers, Eigil
    Moe, Stein R.
    Issue Date
    2012-05-01
    Keywords
    Enclosure
    free-ranging
    habituation
    interspecific interactions
    summer pastures
    sympatric ungulates
    
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    Citation
    Colman, J. E., Tsegaye, D., Pedersen, C., Eidesen, R., Arntsen, H., Holand, Ø., ... & Moe, S. R. (2012). Behavioral interference between sympatric reindeer and domesticated sheep in Norway. Rangeland Ecology & Management, 65(3), 299-308.
    Publisher
    Society for Range Management
    Journal
    Rangeland Ecology & Management
    URI
    http://hdl.handle.net/10150/642638
    DOI
    10.2111/REM-D-11-00094.1
    Additional Links
    https://rangelands.org/
    Abstract
    Interspecific interaction among sympatric ungulates is important in management and conservation. We investigated behavioral interference between sympatric wild or semidomestic reindeer (Rangifer tarandus tarandus) and sheep (Ovis aries) in two field studies and one enclosure experiment. For free-ranging wild and semidomestic reindeer, interference between the two species increased with decreasing distances, occurring only at less than 200 m and 30 m, for wild and semidomestic reindeer, respectively, and neither species consistently dominated the other. In a controlled, duplicated experiment we tested interference and confrontations at the feeding patch level among semidomestic reindeer and sheep within 40 X 50 m enclosures. When new reindeer or sheep were introduced into enclosures already occupied by reindeer, new reindeer resulted in significantly more interference and confrontations among individuals compared to new sheep; i.e., intraspecific interference was more prevalent than interspecific interference at equal densities. For all study areas, confrontations decreased with time after ‘‘first encounter,’’ indicating cohabituation. A sympatric use of pastures was not visually disruptive for recorded grazing behavior for either species./La interacción inter-específica entre ungulados que ocupan el mismo habitat es importante para el manejo y la observación. Investigamos la interferencia en el comportamiento entre el reno silvestre o semi-doméstico (Rangifer tarandus tarandus) y la oveja (Ovis aries) en dos campos de estudio y un exclusión experimental. Para renos silvestres o semi-domésticos que pastorean libremente la interferencia entre las dos especies aumenta conforme se reduce la distancia ocurriendo, solo a menos de 200 y 30 metros para los renos silvestres y renos semi-domésticos respectivamente y ninguna de las especies domino a la otra. En un experimento controlado y duplicado probamos la interferencia y confrontación a nivel de parche de alimentación entre renos semi-domésticos y ovejas dentro de una exclusión de 40350 metros. Cuando los renos u ovejas nuevos fueron introducidos en la exclusión donde ya estaba ocupada por otros renos, los nuevos renos resultaron en una interferencia y confrontación significativa mayor entre individuos comparada con ovejas nuevas; ejm. Interferencia intraespecífica fue más acentuada que interferencia interespecífica en densidades iguales. Para todas las áreas de estudio las confrontaciones disminuyeron con el tiempo después del primer encuentro indicando cohabitación. Un uso simpátrico del pastizal no fue visualmente disruptivo para el comportamiento de pastoreo registrado en ambas especies.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2111/REM-D-11-00094.1
    Scopus Count
    Collections
    Rangeland Ecology & Management, Volume 65, Number 3 (May 2012)

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