10 documents found, page 1 of 1
Groundwater abstraction has caused extensive ecological damage to the Doñana wo...
Green, Andy J.; Guardiola‑Albert, Carolina; Bravo‑Utrera, Miguel Ángel; Bustamante, Javier; Camacho, Antonio; Camacho, Carlos; Contreras‑Arribas, EvaAcreman et al. (Wetlands 42:63, 2022) reviewed evidence for ecological damage to the Doñana wetlands (UNESCO World Heritage Site [WHS] and Ramsar site), Spain, associated with intensification of groundwater use, particularly for agriculture. Acreman et al. presented a multistep methodology for evidence-based risk assessment that involves identification of conser- vation issues, and a systematic review of scient...
The road to success and the fences to be crossed: considering multiple infrastr...
Botting, Isla; Ascensão, Fernando; Navarro, Laetitia M.; Paniw, Maria; Tablado, Zulima; Román, Jacinto; Revilla, Eloy; D'Amico, MarcelloLinear infrastructure represent a barrier to movement for many species, reducing the connectivity of the landscapes in which they reside. Of all linear infrastructure, roads and fences are two of the most ubiquitous, and are understood to reduce landscape connectivity for wildlife. However, what is often neglected consideration is a holistic approach of modelling the effects of multiple types of linear infrastr...
Road encroachment mediates species occupancy, trait filtering and dissimilarity...
Ascensão, Fernando; D'Amico, Marcello; Revilla, Eloy; Pereira, Henrique M.Assessing the road effects on biodiversity is challenging because impacts may depend on both wildlife responses to roads and on the spatial arrangement of roads. We questioned whether an increase in road encroachment leads to significant changes in species occurrence and community composition. Using a large citizen-science dataset of point-counts performed throughout Iberian Peninsula, we modelled the effect of...
Are road-kills representative of wildlife community obtained from atlas data?
Quiles Tundidor, Pablo; Ascensão, Fernando; D'Amico, Marcello; Revilla, Eloy; Barrientos, RafaelSystematic road-kill surveys are useful to study the impact of roads on wildlife. However, they are time-and budget-consuming, so the use of non-systematic data in road ecology is currently gaining popularity (for instance, by environmental consultants). Some data sources such as atlases (i.e., compilations of species records from a given region), which can include non-systematic and citizen-science data, can e...
Cars as a tool for monitoring and protecting biodiversity
Ascensão, Fernando; Branquinho, Cristina; Revilla, EloyModern cars have an array of sensors that allow different objects to be recognized, including large and small animals. They thus have the potential to become a tool for monitoring biodiversity and improving driver safety. But to achieve this various challenges in computing, communications and privacy need to be addressed.
Spatiotemporal Dynamics of Genetic Variation in the Iberian Lynx along Its Path...
Casas-Marce, Mireia; Marmesat, Elena; Soriano, Laura; Martínez-Cruz, Begoña; Lucena-Perez, Maria; Nocete, Francisco; Rodríguez-Hidalgo, AntonioThere is the tendency to assume that endangered species have been both genetically and demographically healthier in the past, so that any genetic erosion observed today was caused by their recent decline. The Iberian lynx (Lynx pardinus) suffered a dramatic and continuous decline during the 20th century, and now shows extremely low genome- and species-wide genetic diversity among other signs of genomic erosion....
Do dry ledges reduce the barrier effect of roads?
Villalva, Pablo; Reto, Dyana; Santos-Reis, Margarida; Revilla, Eloy; Grilo, ClaraWildlife crossing structures combined with fencing seek to improve permeability and habitat connectivity across roads and reduce wildlife-vehicle collisions. However, the presence of water inside culverts can seriously limit their effectiveness. The implementation of dry ledges can be a good measure to allow crossing when flooded. So far, there is a lack of knowledge on the effectiveness of dry ledges combined ...
One or two cameras per station? Monitoring jaguars and other mammals in the Amazon
Negrões, Nuno; Sollmann, Rahel; Fonseca, Carlos; Jácomo, Anah T. A.; Revilla, Eloy; Silveira, LeandroCamera trapping has become a popular technique to monitor carnivore populations due to its usefulness in estimating abundance. Nevertheless, there are a number of problems associated with study design which are motivating researchers to search for a compromise that ensures improvement of precision while being cost-effective. We have used data from a capture– recapture study in a forested area in central Brazil t...
Human-related factors regulate the spatial ecology of domestic cats in sensitiv...
Ferreira, Joaquim P.; Leitão, Inês; Santos-Reis, Margarida; Revilla, EloyBackground: Domestic cats ranging freely in natural areas are a conservation concern due to competition, predation, disease transmission or hybridization with wildcats. In order to improve our ability to design effective control policies, we investigate the factors affecting their numbers and space use in natural areas of continental Europe. M e t h o d o l o g y / P r i n c i p a l F i n d i n g s : We describ...
Use of camera-trapping to estimate puma density and influencing factors in cent...
Negrões, Nuno; Sarmento, Pedro; Cruz, Joana; Eira, Catarina; Revilla, Eloy; Fonseca, Carlos; Sollmann, Rahel; Tôrres, Natália M.; Furtado, Mariana M.We used remotely triggered cameras to collect data on Puma (Puma concolor) abundance and occupancy in an area of tropical forest in Brazil where the species’ status is poorly known. To evaluate factors influencing puma occupancy we used data from 5 sampling campaigns in 3 consecutive years (2005 to 2007) and 2 seasons (wet and dry), at a state park and a private forest reserve. We estimated puma numbers and den...