6 documents found, page 1 of 1
Using citizen science data for predicting the timing of ecological phenomena ac...
Capinha, César; Ceia-Hasse, Ana; de-Miguel, Sergio; Vila-Viçosa, Carlos; Porto, Miguel; Jarić, Ivan; Tiago, Patricia; Fernández, Néstor; Valdez, JoseThe scarcity of long-term observational data has limited the use of statistical or machine-learning techniques for predicting intraannual ecological variation. However, time-stamped citizen-science observation records, supported by media data such as photographs, are increasingly available. In the present article, we present a novel framework based on the concept of relative phenological niche, using machine-le...
Using citizen science data for predicting the timing of ecological phenomena ac...
Capinha, César; Ceia-Hasse, Ana; de-Miguel, Sergio; Vila-Viçosa, Carlos; Porto, Miguel; Jarić, Ivan; Tiago, Patrícia; Fernández, Néstor; Valdez, JoseThe scarcity of long-term observational data has limited the use of statistical or machine-learning techniques for predicting intraannual ecological variation. However, time-stamped citizen-science observation records, supported by media data such as photographs, are increasingly available. In the present article, we present a novel framework based on the concept of relative phenological niche, using machine-le...
Biodiversity monitoring in Europe: user and policy needs
Moersberger, Hannah; Valdez, Jose; Martin, Juliette G. C.; Junker, Jessica; Georgieva, Ivelina; Bauer, Silke; Beja, Pedro; Breeze, Tom D.To achieve the goals of the 2030 Global Biodiversity Framework, the EuropeanBiodiversity Strategy, and the EU Green Deal, biodiversity monitoring is critical.Monitoring efforts in Europe, however, suffer from gaps and biases in taxon-omy, spatial coverage, and temporal resolution, resulting in fragmented anddisconnected data. To assess user and policy needs in biodiversity monitoring,we employed a four-step use...
Fine-scale habitat segregation between two ecologically similar top predators
Palomares, F.; Fernández, Néstor; Roques, Séverine; Chávez, Cuauhtémoc; Silveira, Leandro; Keller, Claudia; Adrados, BegoñaSimilar, coexisting species often segregate along the spatial ecological axis. Here, we examine if two top predators (jaguars and pumas) present different fine-scale habitat use in areas of coexistence, and discuss if the observed pattern can be explained by the risk of interference competition between them. Interference competition theory predicts that pumas should avoid habitats or areas used by jaguars (the ...
Fecal nitrogen concentration as a nutritional quality indicator for european ra...
Gil-Jiménez, Esperanza; Villamuelas, Miriam; Serrano, Emmanuel; Delibes, Miguel; Fernández, NéstorMeasuring the quality of the nutritional resources available to wild herbivores is critical to understanding trophic regulation processes. However, the direct assessment of dietary nutritional characteristics is usually difficult, which hampers monitoring nutritional constraints in natural populations. The feeding ecology of ruminant herbivores has been often assessed by analyzing fecal nitrogen (FN) concentrat...
Fish invading deserts: non-native species in arid Moroccan rivers
Clavero, Miguel; Esquivias, Javier; Qninba, Abdeljebbar; Riesco, María; Calzada, Javier; Ribeiro, Filipe; Fernández, Néstor; Delibes, Miguel1. Desert rivers are highly dynamic systems in which dry periods, frequently involving the cessation of superficial flow, alternate with violent flash floods. In spite of their territorial importance and high functional and biological diversity, desert rivers have received little attention in the scientific literature, especially in Northern Africa. 2. This study investigated the distribution of non‐native fish...