TY - JOUR
T1 - Análisis de las presas de la Lechuza de Campanario (Tytonidae) en Oaxaca Central, México
AU - Lavariega, Mario C.
AU - García-Meza, Josué
AU - Martínez-Ayón, Yazmín del Mar
AU - Camarillo-Chávez, David
AU - Hernández-Velasco, Teresa
AU - Briones-Salas, Miguel
N1 - Publisher Copyright:
© 2016, Universidade do Vale do Rio dos Sinos. All rights reserved.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Barn Owls have a flexible diet for catching their prey based on availability. However, little has been explored about the age class distribution of their main prey. In this work we analyzed the prey diversity, niche width and age class frequency of their main prey from pellets of Barn Owls (Tyto alba) found in a cave surrounded by oak forest in Central Oaxaca, Mexico. From entire and disintegrated pellets, material of 12 prey taxa was recorded, mainly mammals (83.33%). Based on the analysis of 69 pellets, 133 individuals comprising six mammal species were found, in which Heteromys irroratus and Reithrodontomys sp. represented 68.84%. In both species, age classes III (subadults) and IV (adults) were the most frequent. The indexes of trophic niche breadth and prey diversity were moderate, denoting a specialist diet. Based on our results and literature review, we found that genera Heteromys, Reithrodontomys, Peromyscus, Sigmodon, Dipodomys, Perognatus and Chaetodipus are the main prey of Barn Owls in Mexico.
AB - Barn Owls have a flexible diet for catching their prey based on availability. However, little has been explored about the age class distribution of their main prey. In this work we analyzed the prey diversity, niche width and age class frequency of their main prey from pellets of Barn Owls (Tyto alba) found in a cave surrounded by oak forest in Central Oaxaca, Mexico. From entire and disintegrated pellets, material of 12 prey taxa was recorded, mainly mammals (83.33%). Based on the analysis of 69 pellets, 133 individuals comprising six mammal species were found, in which Heteromys irroratus and Reithrodontomys sp. represented 68.84%. In both species, age classes III (subadults) and IV (adults) were the most frequent. The indexes of trophic niche breadth and prey diversity were moderate, denoting a specialist diet. Based on our results and literature review, we found that genera Heteromys, Reithrodontomys, Peromyscus, Sigmodon, Dipodomys, Perognatus and Chaetodipus are the main prey of Barn Owls in Mexico.
KW - Diet
KW - Heteromys irroratus
KW - Trophic niche
UR - http://www.scopus.com/inward/record.url?scp=84962074598&partnerID=8YFLogxK
U2 - 10.4013/nbc.2016.111.03
DO - 10.4013/nbc.2016.111.03
M3 - Artículo
SN - 1809-9939
VL - 11
SP - 24
EP - 30
JO - Neotropical Biology and Conservation
JF - Neotropical Biology and Conservation
IS - 1
ER -