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      Dietas de Abrothrix andinus, Phyllotis xanthopygus (Rodentia) y Lepus europaeus (Lagomorpha) en un ambiente altoandino de Chile Translated title: Feeding habits of Abrothrix andinus, Phyllotis xanthopygus (Rodentia) and Lepus europaeus (Lagomorpha) in an Andean environment of Chile

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          Abstract

          Los roedores nativos Abrothrix andinus, Phyllotis xanthopygus y el lagomorfo introducido Lepus europaeus, coexisten en ambientes altoandinos del centro-norte de Chile, donde la disponibilidad de alimento es escasa y distribuida heterogéneamente en el paisaje. Propusimos que en estos ambientes las especies en estudio se comportarían como herbívoros generalistas y que existiría una alta sobreposición en la dieta entre la liebre y los roedores nativos. El objetivo de este trabajo fue documentar la composición de la dieta de las tres especies y determinar su amplitud, preferencia y sobreposición en la dieta a partir del análisis microhistológico de heces frescas. Los resultados indican que las tres especies se comportaron como herbívoros-folívoros, siendo la dieta de L. europaeus la de mayor amplitud trófica. Abrothrix andinus seleccionó todos los ítemes que consume, mientras que P. xanthopygus y L. europaeus realizaron un consumo más oportunista. La mayor sobreposición en la dieta se observó entre los roedores nativos

          Translated abstract

          The native rodents Abrothrix andinus, Phyllotis xanthopygus and the introduced lagomorph Lepus europaeus coexist in the highlands of north-central Chile, where food availability is scarce. We hypothesized that in these environments, the studied species would behave as generalist herbivores and where the diet of native rodents would overlap that of hares greatly. The aim of this study was to quantify feeding habits, amplitude, diet preferences and overlap of these three species through microhistological analysis of fresh faeces. While all three species behaved as herbivore-folivores, L. europaeus showed the largest niche breath. Abrothrix andinus selected all consumed items, while P. xanthopygus and L. europaeus exhibited a more opportunistic consumption food items. The highest diet overlap was observed between native rodents

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          A Technique for Analysis of Utilization-Availability Data

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            Ecological Methodology

            Ecological Methodology, Second Edition provides a balance of material on animal and plant populations, and teaches students of ecology how to design efficient tests in order to obtain maximum precision with minimal work.
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              Clarification of a Technique for Analysis of Utilization-Availability Data

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rchnat
                Revista chilena de historia natural
                Rev. chil. hist. nat.
                Sociedad de Biología de Chile (Santiago )
                0716-078X
                March 2007
                : 80
                : 1
                : 3-12
                Affiliations
                [1 ] Universidad de la Serena Chile
                [2 ] Centro de Estudios Avanzados en Zonas Áridas (CEAZA) Chile
                [3 ] Universidad de Los Lagos Chile
                Article
                S0716-078X2007000100001
                10.4067/S0716-078X2007000100001
                f21de186-b4ef-4b3f-bcce-779fcf95c4a7

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Chile

                Self URI (journal page): http://www.scielo.cl/scielo.php?script=sci_serial&pid=0716-078X&lng=en
                Categories
                BIODIVERSITY CONSERVATION
                ECOLOGY

                Ecology,Animal science & Zoology
                roedores nativos,selección dietaria,sobreposición dietaria,high altitude Andean environment,diet,hares,native rodents,dietary selection,dietary overlap,ambiente altoandino,dieta,liebres

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