Relationships between Stone Martens, Genets and Cork Oak Woodlands in Portugal

Santos‐Reis, Margarida; Santos, María J.; Lourenço, Sofia; Marques, João Tiago; Pereira, Íris Susana Pires; Pinto, Bruno

doi:10.1007/0-387-22691-5_7

Cited by 31 publications

(30 citation statements)

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“…Sunquist and Sunquist (2001), Crooks (2002), andMcRae et al (2005) have shown that some endangered mammalian carnivores are particularly vulnerable to habitat fragmentation and road network expansion and are facing threats of local extinction in some regions (Ferreras 2001;Naves et al 2003). Although the stone marten is currently a widespread and common carnivore, recent research documented that they are particularly sensitive to forest fragmentation in cork oak woodlands, hereafter called montado (Virgós and García 2002;Santos-Reis et al 2004;Mortelliti and Boitani 2008), and are vulnerable to traffic (Grilo et al 2009). They are the second most frequently killed carnivore on roads in Portugal during the period when females are provisioning young (Grilo et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Do well-connected landscapes promote road-related mortality?

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Section: Introductionmentioning

confidence: 99%

Do well-connected landscapes promote road-related mortality?

et al. 2010

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“…Previous studies in the Iberian Peninsula, showed that cork oak woodlands with understory are important for badgers (Revilla et al 2001;Virgós 2002;Rosalino et al 2004Rosalino et al , 2005cRosalino et al , 2007Santos and Beier 2008) and stone martens (Virgós and Casanovas 1998;Virgós and Garcia 2002;Santos-Reis et al 2004;Santos and Santos-Reis 2009). The shrub layer in these oak woodlands is removed every 3-5 years to enhance cork production and quality.…”

Section: Discussionmentioning

confidence: 99%

“…Animals were monitored using two types of surveys, (1) focal samples-when the animal was located continuously for 24 h or while active; and (2) daily locations, either at day or night, to obtain locations of the animal in their resting sites or when active. The first type of survey was conducted using triangulation, whereas the second was through homing-in procedures (for details see Santos-Reis et al 2004;Rosalino et al 2005b;Santos and Santos-Reis 2009). Radio-tracking data was entered into Tracker (Camponotus AB and Radio Location Systems AB 1994) and bearings and distances were converted to easting and northing locations.…”

Section: Animal Trapping and Radio-trackingmentioning

confidence: 99%

“…Ecosystem structure: canopy cover and patch size We used tree canopy cover as a proxy for ecosystem structure, since these species require cover for their movements and resting (Rosalino et al 2004(Rosalino et al , 2005cSantos-Reis et al 2004;Loureiro et al 2007). We used the approach developed by Carreiras et al (2006) to derive Tree Canopy Cover (TCC).…”

Section: Ecosystem Type: Land Cover Typementioning

confidence: 99%

“…The marten and the genet are arboreal and solitary, and the badger is cursorial, ground dwelling and social; all of them are nocturnal and omnivorous (Gittleman 1989). We predicted that incorporating different descriptors extracted from the Landsat imagery will be more informative than ecosystem type alone (from land cover classifications), since these species use multiple ecosystems for different resources/activities (Rosalino et al 2004(Rosalino et al , 2005bSantos-Reis et al 2004;Santos and Beier 2008;Santos and Santos-Reis 2009), require cover for their movements and resting (Rosalino et al 2004(Rosalino et al , 2005cLoureiro et al 2007), and use fruits as important food resources (Rosalino et al 2005a;Santos et al 2007;Santos-Reis 2002, 2008), all of which are features detectable by remote sensing imagery.…”

Section: Introductionmentioning

confidence: 99%

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Testing remotely-sensed predictors of meso-carnivore habitat use in Mediterranean ecosystems

et al. 2016

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Context The legacy of human use of Mediterranean ecosystems results in spatial and temporal heterogeneity of resources for wildlife. Understanding wildlife use of these ecosystems may be improved by including information on ecosystem type, structure, and function extracted from remote sensing data. Objectives To assess whether we can improve our understanding of wildlife-habitat use by including information on ecosystem type, structure and function. Methods We tested whether remote sensing derived descriptors of ecosystem type, structure (tree cover and patch size) and function (productivity and stress) determine the habitat of stone martens (Martes foina), common genets (Genetta genetta), and European badgers (Meles meles) in southern Portugal. We linked radio-tracking data from five stone martens, five genets and eight badgers with aerial photography, and some spectra-selectivity to classify vegetation, its structure, productivity and drought stress. Results Statistically-derived generalized linear mixed regression models using combinations of remotely sensed descriptors of ecosystem type, structure and function, performed better than single ecosystem type descriptors. Conclusion Inclusion of information on ecosystem functioning in predictive models of habitat use is more informative than ecosystem type alone, suggesting functional relationships between wildlife and their habitat. However, inclusion of both ecosystem type and function maybe limited to finer spatial resolutions. Our results illustrate the untapped potential of remote sensing to provide detailed descriptors of habitat at adequate spatial scales, now that they are freely available and are systematically collected over space and time. This information adds useful insights on Electronic supplementary material The online version of this article

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Coexistence of predators in time: Effects of season and prey availability on species activity within a Mediterranean carnivore guild

Vilella

Ferrandiz-Rovira

Sayol

2020

Ecology and Evolution

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The degree of coexistence among predators can determine the structure of ecological communities. Niche partitioning is a common strategy applied by species to enhance their coexistence. Diet, habitat, or time use can be responsible for segregation among carnivore species, the latter factor being the least studied in Mediterranean ecosystems. Terrestrial medium‐sized carnivores (i.e., mesocarnivores) carry out important functions in ecosystems, and identifying their interactions is essential for their conservation. In this study, we explore the activity of a terrestrial mesocarnivore guild in order to determine seasonal differences in daily activity patterns of competitors and prey. We also investigate how the abundance of a common mesocarnivore prey in the region, small mammals, influences the activity of predators. During a year, camera trap devices ( n = 18) were installed in Montseny Natural Park (Catalan Pre‐Coastal Range, North‐East Iberian Peninsula), a region that hosts five mesocarnivore species. Camera trapping detections were used to estimate their daily activity patterns and corresponding overlaps. We also surveyed small mammal plots ( n = 5) in order to calculate prey abundance and test its effect on the relative activity of each carnivore species. Despite all target mesocarnivores are mainly nocturnal, the activity overlap among them varies according to species particularities and season. Red fox ( Vulpes vulpes ) appears as a generalist species in terms of time use, whereas stone marten ( Martes foina ) and genet ( Genetta genetta ) show the most similar activity patterns and both of them seem to be positively influenced by small mammal abundance. Overall, the diversity found in the way mesocarnivore species use time could facilitate their coexistence. Despite activity pattern similarities among carnivore species should not be directly translated to negative interactions, they can have a strong influence in habitat and resource‐limited ecosystems. Therefore, activity overlaps should be taken into account when discussing wildlife management actions.

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Relationships between Stone Martens, Genets and Cork Oak Woodlands in Portugal

Cited by 31 publications

References 16 publications

Do well-connected landscapes promote road-related mortality?

Do well-connected landscapes promote road-related mortality?

Testing remotely-sensed predictors of meso-carnivore habitat use in Mediterranean ecosystems

Coexistence of predators in time: Effects of season and prey availability on species activity within a Mediterranean carnivore guild

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