Sett Use, Density and Breeding Phenology of Badgers in Mediterranean Agro-Sylvo-Pastoral Systems

Carnivores social organization varies widely, from strongly social to solitary predators. European badgers are facultative social carnivores that also shows a geographical variation in social structure. These patterns derive mainly from central/west European regions, with an under-representation of...

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Main Authors: Marcelo Silva, Luís Miguel Rosalino, Sandra Alcobia, Margarida Santos-Reis
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/11/9/2663
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author Marcelo Silva
Luís Miguel Rosalino
Sandra Alcobia
Margarida Santos-Reis
author_facet Marcelo Silva
Luís Miguel Rosalino
Sandra Alcobia
Margarida Santos-Reis
author_sort Marcelo Silva
collection DOAJ
description Carnivores social organization varies widely, from strongly social to solitary predators. European badgers are facultative social carnivores that also shows a geographical variation in social structure. These patterns derive mainly from central/west European regions, with an under-representation of Mediterranean populations that face different conservation challenges, especially regarding group composition, sett use patterns and breeding phenology. We addressed these traits topics for a population inhabiting a Portuguese agro-silvo-pastoral system. Based on monthly monitoring of 34 setts and continuous camera-trapping surveys of 12, we showed that setts surrounded by diversified vegetation and located in sandy sites are more used, a pattern probably linked to food availability and ease of sett excavation and maintenance, respectively. Badgers followed a general pattern regarding group size (2–4 adults), but showed an intermediate population density (0.49–0.73 badgers/km<sup>2</sup>), with values higher than those estimated for other Mediterranean environments, but lower than for central-western populations. This, together with the breeding (November/January) and cub emergence (1.8 cubs/sett; March/April) periods, indicates an ecological adaptation to the landscape context, where human-related resources and mild environmental conditions allow badger to reach higher densities than in many southern populations, and to reproduce earlier than their northern counterparts.
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spelling doaj.art-4293b120ae6e4ec899e073377b645ddf2023-11-22T11:43:36ZengMDPI AGAnimals2076-26152021-09-01119266310.3390/ani11092663Sett Use, Density and Breeding Phenology of Badgers in Mediterranean Agro-Sylvo-Pastoral SystemsMarcelo Silva0Luís Miguel Rosalino1Sandra Alcobia2Margarida Santos-Reis3cE3c—Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, PortugalcE3c—Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, PortugalcE3c—Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, PortugalcE3c—Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, PortugalCarnivores social organization varies widely, from strongly social to solitary predators. European badgers are facultative social carnivores that also shows a geographical variation in social structure. These patterns derive mainly from central/west European regions, with an under-representation of Mediterranean populations that face different conservation challenges, especially regarding group composition, sett use patterns and breeding phenology. We addressed these traits topics for a population inhabiting a Portuguese agro-silvo-pastoral system. Based on monthly monitoring of 34 setts and continuous camera-trapping surveys of 12, we showed that setts surrounded by diversified vegetation and located in sandy sites are more used, a pattern probably linked to food availability and ease of sett excavation and maintenance, respectively. Badgers followed a general pattern regarding group size (2–4 adults), but showed an intermediate population density (0.49–0.73 badgers/km<sup>2</sup>), with values higher than those estimated for other Mediterranean environments, but lower than for central-western populations. This, together with the breeding (November/January) and cub emergence (1.8 cubs/sett; March/April) periods, indicates an ecological adaptation to the landscape context, where human-related resources and mild environmental conditions allow badger to reach higher densities than in many southern populations, and to reproduce earlier than their northern counterparts.https://www.mdpi.com/2076-2615/11/9/2663camera-trapping<i>Meles meles</i>densitysocial organizationreproduction
spellingShingle Marcelo Silva
Luís Miguel Rosalino
Sandra Alcobia
Margarida Santos-Reis
Sett Use, Density and Breeding Phenology of Badgers in Mediterranean Agro-Sylvo-Pastoral Systems
Animals
camera-trapping
<i>Meles meles</i>
density
social organization
reproduction
title Sett Use, Density and Breeding Phenology of Badgers in Mediterranean Agro-Sylvo-Pastoral Systems
title_full Sett Use, Density and Breeding Phenology of Badgers in Mediterranean Agro-Sylvo-Pastoral Systems
title_fullStr Sett Use, Density and Breeding Phenology of Badgers in Mediterranean Agro-Sylvo-Pastoral Systems
title_full_unstemmed Sett Use, Density and Breeding Phenology of Badgers in Mediterranean Agro-Sylvo-Pastoral Systems
title_short Sett Use, Density and Breeding Phenology of Badgers in Mediterranean Agro-Sylvo-Pastoral Systems
title_sort sett use density and breeding phenology of badgers in mediterranean agro sylvo pastoral systems
topic camera-trapping
<i>Meles meles</i>
density
social organization
reproduction
url https://www.mdpi.com/2076-2615/11/9/2663
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AT sandraalcobia settusedensityandbreedingphenologyofbadgersinmediterraneanagrosylvopastoralsystems
AT margaridasantosreis settusedensityandbreedingphenologyofbadgersinmediterraneanagrosylvopastoralsystems