| the guild structure of a community of predatory vertebrates in central chile. | the trophic ecology of eleven predator species (falconiforms: buteo polyosoma, elanus leucurus, falco sparverius, geranoaetus melanoleucus, parabuteo unicinctus; strigiforms: athene cunicularia, bubo virginianus, tyto alba; carnivores: dusicyon culpaeus; snakes: philodryas chamissonis, tachymenis peruviana) in two nearby localities of central chile is analyzed. the localities exhibit the typical climate (hot-dry summers, coldrainy winters), and vegetation (chaparral), of mediterranean ecosystems ... | 1981 | 28309444 |
| philodryas chamissonis (reptilia: squamata: colubridae) preys on the arboreal marsupial dromiciops gliroides (mammalia: microbiotheria: microbiotheriidae). | philodryas chamissonis, the chilean long-tailed snake, is a diurnal predator mainly of liolaemus lizards, but also of amphibians, birds, rodents and juvenile rabbits. dromiciops gliroides (colocolo opossum) is an arboreal marsupial endemic of temperate rainforest of southern south america. little information is available about this marsupial's biology and ecology. here we report the predation of one colocolo opossum by an adult female p. chamissonis in a mixed nothofagus forest, composed mainly ... | 2013 | 23644784 |
| comparing the antipredator behaviour of two sympatric, but not syntopic, liolaemus lizards. | the microhabitat preferences of prey animals can modulate how they perceive predation risk, and therefore, their antipredator behaviour. we tested under standardized conditions how microhabitat preferences of two liolaemus lizards affected their responses when confronted with two types of ambush predators (raptor vs. snake), under two levels of predation risk (low vs. high). these lizard species are sympatric, but not syntopic; l. chiliensis basks on bushes, a complex microhabitat that may provi ... | 2018 | 29330087 |
| a new andean species of philodryas (dipsadidae, xenodontinae) from ecuador. | we describe a new species of philodryas from the highlands of southern ecuador. the new species is distinguished from all known species of philodryas by a unique combination of coloration, scalation, and hemipenial characters. the new species resembles philodryas simonsii in color pattern. however, they differ notoriously by their hemipenial morphology. the three other trans-andean members of the genus (philodryas simonsii, philodryas chamissonis, and philodryas tachymenoides), along with the ne ... | 2014 | 24872238 |
| [snake bite by philodryas chamissonis. a case presentation and literature review]. | there are two species of snakes associated with snake bite poisoning in chile: philodryas chamissonis and tachymenis peruviana. a case associated with a p. chamissonis bite occurring during a summer activity in san antonio, v region, is presented. the bite compromised the dorsum of the right hand between the thumb and the index finger and was initially painless. during the following 24 hours equimotic edema developed up to the shoulder and pectoral region, with intense pain, headache, nausea, fe ... | 2007 | 17554446 |
| [2 new cases of ophidism in chile]. | two cases of ophidism seen at the emergency department of the sotero del rio hospital, santiago, during december 1993, are presented. two young males were bitten by a chilean snake (dromicus chamissonis) presenting local acute pain, edema and hemorrhagic reaction. in one case, systemic involvement was diagnosed. the clinical presentation and laboratory results are described. the characteristics and frequency of ophidism are discussed. | 2006 | 7654288 |
| identification and molecular characterization of five putative toxins from the venom gland of the snake philodryas chamissonis (serpentes: dipsadidae). | philodryas chamissonis is a rear-fanged snake endemic to chile. its bite produces mild to moderate symptoms with proteolytic and anti-coagulant effects. presently, the composition of the venom, as well as, the biochemical and structural characteristics of its toxins, remains unknown. in this study, we cloned and reported the first full-length sequences of five toxin-encoding genes from the venom gland of this species: type iii snake venom metalloprotease (svmp), snake venom serine protease (svsp ... | 2015 | 26410112 |
| two new species of ornithodoros (ixodida; argasidae) from the southern cone of south america. | two new species of the genus ornithodoros were described from larvae collected in argentina and chile. ornithodoros xerophylus n. sp. was described from specimens collected on the small rodent graomys centralis in argentina. the diagnostic characters for this species are a combination of dorsal plate slightly oval with a length of approximately 250 µm, 16 pairs of dorsal setae, hypostome with apex rounded and dental formula 2/2 in most rows, 3/3 apically, and capsule of the haller's organ oval i ... | 2015 | 25702203 |
| philodryas (serpentes: dipsadidae) envenomation, a neglected issue in chile. | snakebite envenomation is considered a neglected tropical disease, although it also occurs outside the tropics. in this work, we analyzed the literature on philodryas species in chile (philodryaschamissonis, p.simonsii, and p.tachymenoides) from 1834 to 2019, searching for epidemiological, clinical, and molecular aspects of envenomation. ninety-one percent of the studies found regarded taxonomy, ecology, and natural history, suggesting that snakebites and venom toxins are a neglected issue in ch ... | 2019 | 31795440 |