The manner in which terrestrial ecosystems are regulated is controversial. The "top-down" school holds that predators limit herbivores and thereby prevent them from overexploiting vegetation. "Bottom-up" proponents stress the role of plant chemical defenses in limiting plant depredation by herbivores. A set of predator-free islands created by a hydroelectric impoundment in Venezuela allows a te...

Current theories regarding colonization of South America by mammals are divided between those supported by fossil evidence, which suggest the original mammal fauna of the isolated continent was augmented by early immigrants (primates, caviomorph rodents, and later, procyonids) with a final large influx of northern mammals occurring with the formation of the Panama land bridge, and an opposing v...

Three species of florentiamyid, Florentiamys sp. cf. F. kingi Wahlert, Kirkomys parvus (Troxell), and Hitonkala martintau n. sp., and an undetermined species of geomyid are recognized from the Blue Ash fauna. This increases the total number of rodents described from this fauna to 14. Florentiamys sp. cf. F. kingi is similar in morphology to the Arikareean F. kingi, but is slightly smaller. This...

When the Swiss National Park was founded, taking stock of fauna and flora a major goal. Various efforts were made to investigate insectivores rodents, but little published about findings. In this article I will analyse existing data in terms how small mammal has developed over last 100 years. The reveal that species are rare today then common ones quite numerous too. protection status meant for...

Helminth parasites are reported for the first time from northern spotted owls. Seventy-one percent of a sample of Strix occidentalis caurina from western Oregon was infected. Nematodes (Porrocaecum depressum, Capillaria falconis, Microtetrameres sp. and Synhimantus hamatus) were the most prevalent parasites although cestodes (Paruterina rauschi) and acanthocephalans (Centrorhynchus conspectus) ...

The Western Ghats biodiversity hotspot is under huge anthropogenic pressure, with unique flora and fauna facing severe threats from habitat fragmentation, loss, degradation. northern has been poorly studied for its small mammal fauna, hence we examined mammals near Pune 2014 to 2017. Live trapping was carried out in irrigated rainfed agriculture fields, forests, grasslands at low, mid, high ele...

Rodents from the Eocene locality of Cos (Tarn-et-Garonne, Quercy, France). Comparison with rodents localities transition lower Eocene/middle Eocene. This article describes new fauna Quercy) whose primates were first studied and published (Godinot et al. 2021) Among these poorly diversified rodent assemblage, smallest species is assigned to Eogliravus wildi. All Hartenberger, 1971 are redescribe...

Urbanization implies the loss of biodiversity and promotes extirpation local flora fauna. It favors habitat fragmentation establishment increase non-native species and, eventually, homogenization landscape. This study aims to evaluate urbanization process in a medium-sized city Mexican southeast, San Cristóbal de Las Casas (SCLC) Neotropics, response rodent community such process. The area was ...

We describe the non-primate mammalian fauna from late Pliocene to earliest Pleistocene deposits of Mille-Logya in Lower Awash Valley, Ethiopia, dated c. 2.9–2.4 Ma, and divided into three successive units: Gafura, Seraitu, Uraitele. identify 41 taxa (including rodents), most diverse group being Bovidae, with 17 taxa. While Gafura assemblage still resembles those earlier Hadar Formation, younger...