Search results for "Felis"
showing 10 items of 39 documents
Wildcat scats: Taphonomy of the predator and its micromamal prey
2019
Small sized felids, such as wild and domestic cats, are one of the most common predators in the nature and in sites occupied by humans in archaeological and historical contexts. Wildcats have ingestion/ digestion traits highly destructive for their prey, i.e.: teeth to chew causing extreme breakage, and digestion along the entire digestive tract with low pH gastric juices causing extreme bone corrosion. Small sized cats are also well known to play with the prey and select skeletal parts to ingest. The present study is focused on the taphonomic analysis of micromammal remains recovered from scats produced by European wildcats (Felis silvestris silvestris) during several months and years. Exc…
Habitat fragmentation and anthropogenic factors affect wildcat Felis silvestris silvestris occupancy and detectability on Mt Etna
2019
International audience; Knowledge of patterns of occupancy is crucial for planning sound biological management and for identifying areas which require paramount conservation attention. The European wildcat Felis silvestris is an elusive carnivore and is classified as ‘least concern' on the IUCN red list, but with a decreasing population trend in some areas. Sicily hosts a peculiar wildcat population, which deserves conservation and management actions, due to its isolation from the mainland. Patterns of occupancy for wildcats are unknown in Italy, and especially in Sicily. We aimed to identify which ecological drivers determined wildcat occurrence on Mt Etna and to provide conservation actio…
Record of a 10-year old European Wildcat Felis silvestris silvestris Schreber, 1777 (Mammalia: Carnivora: Felidae) from Mt. Etna, Sicily, Italy
2020
Longevity data for wild felids are lacking in the literature. Here we report a camera trap recapture of a European Wildcat Felis silvestris at Mt. Etna in Sicily, Italy after nine years. This individual was clearly identifiable as its tail ended with a white ring rather than the typical black ring and had a unique shape of the dorsal stripe. At first capture on 26 May 2009, this cat was assessed as an adult, so that the likely minimum age of this individual at the time of recapture on 10 June 2018 must have been be at least 10 years. This finding represents the oldest known European Wildcat in the wild and provides insight into age structure in wildcat populations.
Akciju portfeļa izveidošana un pārvaldīšana
2021
Bakalaura darba tēma ir “Akciju portfeļa izveidošana un pārvaldīšana”. Bakalaura darba mērķis ir balstoties uz zinātnisko literatūru un akciju tirgus izveidošanas un novērtēšanas metožu analīzi, izveidot akciju portfeli un izstrādāt priekšlikumus par ienesīgām investēšanas iespējām akciju tirgū. Bakalaura darbā pirmajā daļā ir aprakstīta un izpētīta informācija par akciju un akciju portfeļa teorētisko būtību, akciju klasifikāciju un akciju tirgus dalībniekiem. Darba otrajā daļā tiek izpētīta akciju portfeļa veidošanas un novērtēšanas metodes, tiek izpētīta akciju portfeļu analīzes veidi: fundamentālā un tehniskā analīze. Bakalaura darba pētnieciskajā daļā pēc iegūtās un izpētītās informācij…
Data from: Moving in the Anthropocene: global reductions in terrestrial mammalian movements
2019
Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of the anthropogenic footprint on animal movements have not been estimated across species. Using a unique GPS-tracking database of 803 individuals across 57 species, we found that movements of mammals in areas with a comparatively high human footprint were on average one-half to one-third the extent of their movements in areas with a low human footprint. We attribute this reduction to behavioral changes of individual animals and to the exclusion of species with long-range movements from areas with higher human impact. Global loss of vagility alters a key ecological trait of animals that affects no…
Genetic integrity of European wildcats: Variation across biomes mandates geographically tailored conservation strategies
2022
Hybridisation between domestic and wild taxa can pose severe threats to wildlife conservation, and human-induced hybridisation, often linked to species' introductions and habitat degradation, may promote reproductive opportunities between species for which natural interbreeding would be highly unlikely. Using a biome-specific approach, we examine the effects of a suite of ecological drivers on the European wildcat's genetic integrity, while assessing the role played by protected areas in this process. We used genotype data from 1217 putative European wildcat samples from 13 European countries to assess the effects of landcover, disturbance and legal landscape protection on the European wild…
Identification and characterisation of the dopamine receptor II from the cat flea Ctenocephalides felis (CfDopRII)
2006
International audience; G protein-coupled receptors (GPCRs) represent a protein family with a wide range of functions. Approximately 30% of human drug targets are GPCRs, illustrating their pharmaceutical relevance. In contrast, the knowledge about invertebrate GPCRs is limited and is mainly restricted to model organisms like Drosophila melanogaster and Caenorhabditis elegans. Especially in ectoparasites like ticks and fleas, only few GPCRs are characterised. From the cat flea Ctenocephalides felis, a relevant parasite of cats and dogs, no GPCRs are known so far. Thus, we performed a bioinformatic analysis of available insect GPCR sequences from the honeybee Apis mellifera, the mosquito Anop…
Genetic structure of wildcat (Felis silvestris) populations in Italy
2013
Severe climatic changes during the Pleistocene shaped the distributions of temperate-adapted species. These species survived glaciations in classical southern refuges with more temperate climates, as well as in western and eastern peripheral Alpine temperate areas. We hypothesized that the European wildcat (Felis silvestris silvestris) populations currently distributed in Italy differentiated in, and expanded from two distinct glacial refuges, located in the southern Apennines and at the periphery of the eastern Alps. This hypothesis was tested by genotyping 235 presumed European wildcats using a panel of 35 domestic cat-derived microsatellites. To provide support and controls for the analy…
Update of the distribution and habitat use of the wildcat, pine marten and weasel in Sicily
2020
The wildcat (Felis silvestris), the pine marten (Martes martes) and the weasel (Mustela nivalis) are key members of the mammalian community in Sicily, actually performing the role of top predators and consequently influencing the trophic chain both in natural and agricultural areas. However, despite their protected status, very little information is available regarding their occurrence and ecology. Here, by verifying published studies, collecting personal observations and analyzing novel field data obtained by camera traps, we update their spatial distribution in Sicily, contributing to a better understanding of their habitat use and suggesting future research to improve our knowledge of th…
Materiālu komplekss skolēnu runas prasmju līmeņa izlīdzināšanai krievu valodas kā svešvalodas apguvē
2015
Makņa Inga. Materiālu komplekss skolēnu runas prasmju līmeņa izlīdzināšanai krievu valodas kā svešvalodas apguvē. Rīga. 2015. – 58 lpp. Darbs sastāv no divām daļām: pirmās un otrās. Darba pirmajā daļā tiek atklāts psiholoģiskais un metodiskais pamatojums mācību procesa diferencēšanai kā galvenajam līdzeklim skolēnu runas prasmju līmeņa izlīdzināšanā. Darba teorētiskais materiāls tiek balstīts uz Krievijas didaktiķu Passova, Sčukina darbiem, Latvijas mācībspēku metodiskajām izstrādnēm krievu valodas kā svešvalodas mācīšanā, un autores pedagoģisko pieredzi. Otrajā daļā tiek parādīta skolēnu lasīšanas prasmju, leksikas un gramatikas zināšanu pārbaude, balstoties uz Eiropas Savienības izstrādāt…