Food habits of Rufous-legged Owl in a protected area of south-central Chile affected by mixed wildfire-Reference-Cited by-同舟云学术

Food habits of Rufous-legged Owl in a protected area of south-central Chile affected by mixed wildfire

Published:2023-12-01 Issue:2 Volume:31 Page:236-242
ISSN:2061-9588
Container-title:Ornis Hungarica
language:en
Short-container-title:

Author:

Zúñiga Alfredo H.¹²³,Rau Jaime R.²,Sandoval Rodolfo⁴,Fuenzalida Víctor⁵

Affiliation:

1. 1 Departamento de Ciencias Agropecuarias y Forestales , Universidad de La Frontera , Temuco , Chile

2. 2 Laboratorio de Ecología , Departamento de Ciencias Biológicas , Universidad de Los Lagos , P.O. Box 933 , Osorno , Chile

3. 3 Departamento de Gestión Agraria y Medio Ambiente , Universidad de Santiago , Santiago , Chile

4. 4 Red de la Conservación de la Biodiversidad de Nahuelbuta , Contulmo , Chile

5. 5 Consultora Ambientes del Sur , Temuco , Chile

Abstract

Abstract The diet of Rufous-legged Owl, Strix rufipes, a small raptor present in an Andean protected area, is described here. During the fall of 2017, 44 pellets were collected in the study area, being subsequently analyzed. The occurrence of small mammal prey items in pellets was compared with capture frequencies with live-trapping through Sherman traps. Regarding occurrence frequencies in the diet, arthropods were the most frequent (49.34%), followed by mammals (39.31%), birds (7.86%) and reptiles (3.37%). However, in terms of biomass, mammals had the highest biomass contribution. The observed frequency of consumed preys showed a random pattern, according to the captures of small mammals obtained with Sherman traps. The role of wildfire in the composition of prey in the observed trophic spectrum of these forest owls is also discussed.

Publisher

Walter de Gruyter GmbH

Subject

Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics

Link

https://www.sciendo.com/pdf/10.2478/orhu-2023-0033

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