33 documents found, page 1 of 4
Relatedness reveals a strong road effect on female bat genetic connectivity
Medinas, Denis; Ribeiro, Vera; Barbosa, Soraia; Valerio, Francesco; Marques, João Tiago; Rebelo, Hugo; Paupério, Joana; Santos, Sara MariaThe effective management of species with small and fragmented populations requires an in-depth understanding of how the effects of human-induced habitat disturbance shape the structure and gene flow at fine spatial scales. Identification of putative environmental barriers that affect individual exchange among subpopulations is imperative to prevent extinction risks. Here, we investigated how landscape affects t...
Erinaceus europaeus ouriço-cacheiro
Medinas, Denis; Santos, Sara MariaOcupa uma grande diversidade de habitats, desde áreas com elevada cobertura arbórea (bosques, floresta) até áreas mais abertas e humanizadas (Nores 2007, García et al. 2009). Localmente, pode ser encontrado em bermas de caminhos e de estradas, sebes, áreas agrícolas, parques e jardins urbanos, ou campos de golf (García et al. 2009, Bom 2020). Apresentam atividade crepuscular/noturna (Nores 2007) e um período de...
Fine scale genetics reveals the subtle negative effects of roads on an endanger...
Medinas, Denis; Ribeiro, Vera; Barbosa, Soraia; Valerio, Francesco; Marques, J. Tiago; Rebelo, Hugo; Paupério, Joana; Santos, Sara; Mira, AntónioThe effective management of species with small and fragmented populations requires an in-depth understanding of how the effects of human-induced habitat disturbance shape the structure and gene flow at fine spatial scales. Identification of putative environmental barriers that affect individual exchange among subpopulations is imperative to prevent extinction risks. Here, we investigated how landscape affects t...
Integrating remote sensing data on habitat suitability and functional connectiv...
Valerio, Francesco; Godinho, Sergio; Salgueiro, Pedro; Medinas, Denis; Manghi, Giovanni; Mira, António; Pedroso, Nuno; Ferreira, Eduardo; Craveiro, JoãoContext Road impacts on biodiversity are increasing worldwide. Few attempts have been made to integrate multiple taxonomic groups into roadkill mitigation plans, while using remotely sensed habitat suitability and functional connectivity. Objectives We pinpoint high-risk road locations (road planning units) for 19 woodland species from different taxonomic groups (non-flying mammals, birds, and bats) to enhance ...
Large-scale grid-based detection in occupancy surveys of a threatened small mam...
Oliveira, Alexandra; Medinas, Denis; Craveiro, Joao; Milhinhas, Catarina; Sabino-Marques, Helena; Mendes, Tiago; Spadoni, Giulia; Oliveira, AndréMonitoring the status and trends of wildlife is key to understand how species respond to natural and human- derived threats, and to evaluate and improve conservation planning and management. Large-scale, grid-based assessment of species distribution, abundance, and population trends over time is an important component of biodiversity monitoring. However, such assessments still present important challenges relat...
Assessing behaviour states of a forest carnivore in a road-dominated landscape ...
Ferreira, Eduardo; Valerio, Frafrancesco; Medinas, Denis; Fernandes, Nelson; Craveiro, João; Costa, Pedro; Silva, João Paulo; Carrapato, CarlosAnthropogenic infrastructures and land-use changes are major threats to animal movements across heterogeneous landscapes. Yet, the behavioural consequences of such constraints remain poorly understood. We investigated the relationship between the behaviour of the Common genet (Genetta genetta) and road proximity, within a dominant mixed forest-agricultural landscape in southern Portugal, fragmented by roads. Sp...
Unraveling the dynamics of a ground-dwelling beetle population exposed to quarr...
Eufrázio, Sofia; Oliveira, Amália; Miralto, Otília; Medinas, Denis; Silva, Carmo; Sá, Cátia; Mira, António; Salgueiro, PedroQuarry exploitation and restoration practices are expected to have overarching and contrasting impacts on animal communities. Although many studies describe these impacts, they generally overlook the effects on population dynamics and individual movements.We assessed the impacts of quarry exploitation and restoration activity on population dynamics, individual movement, and habitat use of a sand-dwelling specia...
Risks and opportunities for wildlife living in road dominated environments. Wha...
Mira, António; Galantinho, Ana; Medinas, Denis; Sabino-Marques, Helena; Silva, Carmo; Santos, SaraA Living on the roadside involves serious risks including restrictions to movements, disturbance of resting and feeding places, and roadkill menace. However, when crossing highly human modified areas such as simplified intensive agricultural landscapes or highly grazed areas, remnant natural habitats associated to roads (verges, roundabouts, bypasses, etc.) may be the only leftover natural areas acting as a las...
Hit the road Jane! Roads decrease the relatedness for females lesser horseshoe ...
Medinas, Denis; Marques, João Tiago; Ribeiro, Vera; Rebelo, Hugo; Barbosa, Soraia; Valerio, Francesco; Santos, Sara; Mira, AntónioThe understanding of how human-induced habitat disturbance shapes the contemporary population structure and gene flow at a fine-spatial scale is key for adequate management of species with small and fragmented populations and with limited dispersal abilities. To date, there are few studies focusing on how barriers (e.g. roads, habitat fragmentation) might influence gene flow at fine scales. Roads are known for ...
MAMMALS IN PORTUGAL: A data set of terrestrial, volant, and marine mammal occur...
Grilo, Clara; Mestre, Frederico; Herrera, José; Barrreiro, Sílvia; Silva, Bruno; Costa, Pedro; Salgueiro, Vânia; Mira, António; Milhinhas, CatarinaMammals are threatened worldwide, with ~26% of all species being included in the IUCN threatened categories. This overall pattern is primarily associated with habitat loss or degradation, and human persecution for terrestrial mammals, and pollution, open net fishing, climate change, and prey depletion for marine mammals. Mammals play a key role in maintaining ecosystems functionality and resilience, and therefo...