Buscar
Mostrando ítems 131-140 de 917
An overview on the role of Hexanchiformes in marine ecosystems: Biology, ecology and conservation status of a primitive order of modern sharks
(Wiley Blackwell Publishing, Inc, 2012-04)
The large size, high trophic level and wide distribution of Hexanchiformes (cow and frilled sharks) should position this order as important apex predators in coastal and deep-water ecosystems. This review synthesizes ...
Mixed-breed guarding dogs reduce conflict between goat herders and native carnivores in Patagonia
(Jack H. Berryman Institute, 2012-09)
Goat husbandry is the main rural livelihood in the northern Patagonian steppe of Argentina, and herders kill any carnivore that they believe threatens their herds, including the endangered Andean cat (Leopardus jacobita). ...
Primeros registros de depredación intra-gremio de Sicarius thomisoides Walckenaer, 1847 (Araneae: Sicariidae) sobre el escorpión Brachistosternus mattoni (Ojanguren-Affilastro, 2005) (Scorpiones: Bothriuridae) y el solífugo Pseudocleobis sp. (Solifugae: Ammotrechidae) en ChileFirst records of intra-guild predation of Sicarius thomisoides Walckenaer, 1847 (Araneae: Sicariidae) on the scorpion Brachistosternus mattoni (Ojanguren-Affilastro (Scorpiones: Bothriuridae) and the solifuge Pseudocleobis sp. (Solifugae: Ammotrechidae) in Chile
(Sociedad Chilena de Entomología, 2021-04)
Se registra el primer caso de depredación intra-gremio de Sicarius thomisoides sobre dos arácnidos de ambientes desérticos de Chile: el escorpión Brachistosternus mattoni y el solífugo Pseudocleobis sp. Se describen las ...
Variable sex-specific mortality due to shorebird predation on a fiddler crab
(National Research Council Canada-NRC Research Press, 2003-07)
Male fiddler crabs compete for access to mates mainly by displaying an enlarged claw. One cost of this large claw is presumed to be higher exposure to predators. The fiddler crab Uca uruguayensis is used as a food source ...
Effects of parasitism on antipredatory responses and defensive behaviors in the subterranean rodent Ctenomys talarum
(National Research Council Canada-NRC Research Press, 2022-02)
La prédation constitue un important facteur d’évolution modulant différentes adaptations. Les organismes proies présentent des adaptations comportementales qui leur permettent de reconnaître, éviter et se défendre contre ...
Review of the actualistic taphonomy of small mammals ingested by south American predators. its importance in the interpretation of the fossil recordRevisión de la tafonomía actualística de los micromamíferos ingeridos por depredadores de América del Sur. Su importancia en la interpretación del registro fósil
(Asociacion Paleontologica Argentina, 2019-05)
En este trabajo se valora el estado actual del conocimiento de las características tafonómicas de los restos de micromamíferos (roedores y marsupiales) generados por la acción de los diferentes depredadores (aves rapaces ...
Phymaturus Wiliamsi: Predator-Prey Interaction
(Society for the Study of Amphibians and Reptiles, 2018-03)
Predation is a selective force that models prey populations (Sih et al. 1985. Annu. Rev. Ecol. Syst. 16:269–311). However, predator-prey interactions are rarely observed in the field for a given species. The Andean lizard ...
Back-calculation of total length of Argentine seabass Acanthistius patachonicus using morphometric relationships of bones and measurements of the body
(Instituto Nacional de Investigación y Desarrollo Pesquero, 2020-06)
Predictive regression equations were generated to estimate total length of the Argentine seabass (A. patachonicus) using skull and pectoral girdle bones, specific body and otolith lengths. Regressions of skull and pectoral ...
Liolaemus goetschi : predation
(Society for the Study of Amphibians and Reptiles, 2011-12)
Liolaemus goetschi is an oviparous and insectivorous, medium-sized lizard (max. SVL = 73 mm) inhabiting the arid landscape of Monte Desert in northern Patagonia, Argentina. Its geographic distribution ranges through a ...
Stereotyped defensive behaviours in frogs of the genus Odontophrynus (Amphibia: Anura: Odontophrynidae)
(Herpetological Society of Japan, 2018-08)
Observations on stereotyped defensive behaviours are presented for 7 frog species of the Neotropical genus Odontophrynus from Argentina and Uruguay. Seven stereotyped postures were observed, among which the most common ...