Publications

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intestinal parasites of the grey fox (pseudalopex culpaeus) in the central peruvian andes.the intestines of 20 grey peruvian foxes (pseudalopex culpaeus) were examined for the presence of echinococcus granulosus and other intestinal parasites. echinococcus granulosus was not found in foxes but taenia hydatigena and t. multiceps were found in 7 and 4 animals respectively. the grey fox may not be a suitable definitive host for e. granulosus. however, it may act as a sylvatic reservoir of t. hydatigena and t. multiceps in the central peruvian andes.19989639908
interplay between metabolic rate and diet quality in the south american fox, pseudalopex culpaeus.we studied the metabolic costs associated with the ingestion of peppertree fruits (schinus molle) in the culpeo fox, pseudalopex culpaeus, the second largest canid in south america. throughout its range of distribution, this fox feeds on rodents and other small vertebrates, and also on peppertree fruits, which represent 98% of total fruits consumed in semiarid chile. peppertree contains a high diversity of phytochemicals. foxes feeding on diets containing rats and peppertree fruits (mixed diets) ...200414720588
serological survey of selected pathogens of free-ranging foxes in southern argentina, 1998--2001.a serological survey was conducted in the patagonia region of argentina to estimate the prevalence of nine disease agents within the populations of free-ranging culpeo (dusicyon culpaeus) and grey (dusicyon griseus) foxes. the disease agents were aujeszky's disease virus (adv), brucella, canine adenovirus (cav), canine distemper virus (cdv), canine parvovirus (cpv), encephalitozoon cuniculi, leptospira, neospora caninum, and toxoplasma gondii. a total of 84 foxes were sampled (28 culpeo and 56 g ...200415861875
detection of leishmania dna in wild foxes and associated ticks in patagonia, argentina, 2000 km south of its known distribution area.zoonotic visceral leishmaniasis (zvl) is a vector-borne disease affecting humans and other mammals and caused by the protozoan parasite leishmania (leishmania) infantum (syn. l. chagasi), belonging to the l. donovani complex. the regions in northern argentina (above 32 °s) are its southern distribution limit in south america.201627125871
prevalence of salmonella enterica and shiga toxin-producing escherichia coli in zoo animals from chile.salmonella (s.) enterica and shiga toxin-producing escherichia coli (stec) are foodborne pathogens. here, we report the prevalence of s. enterica and stec in feces of 316 zoo animals belonging to 61 species from chile. s. enterica and stec strains were detected in 7.5% and 4.4% of animals, respectively. all salmonella isolates corresponded to the serotype enteritidis. to the best of our knowledge, this is the first report of s. enteritidis in the culpeo fox (lycalopex culpaeus), black-capped cap ...201627030195
numerical and functional response of predators to a long-term decline in mammalian prey at a semi-arid neotropical site.occurrence and diet of ten carnivorous predators (four falconiforms, four owls, and two foxes), and population levels of their mammalian prey, were monitored over 45 months at a semi-arid site in north-central chile. early in this period, small mammals irrupted and then declined markedly to a density 7% of that at peak. all four falconiforms (buteo polyosoma, falco sparverius, geranoaetus melanoleucus, parabuteo unicinctus) and one owl (tyto alba) responded numerically to the decline in mammalia ...199228313400
ecogeographical variation in skull shape of south-american canids: abiotic or biotic processes?species morphological changes can be mutually influenced by environmental or biotic factors, such as competition. south american canids represent a quite recent radiation of taxa that evolved forms very disparate in phenotype, ecology and behaviour. today, in the central part of south america there is one dominant large species (the maned wolf, chrysocyon brachyurus) that directly influence sympatric smaller taxa via interspecific killing. further south, three species of similar sized foxes (lyc ...201727217595
selection and implementation of a flagship fleet in a locally undervalued region of high endemicity.flagships are one conservation education tool. we present a proposed flagship species fleet for environmental education in central chile. our methods followed recent flagship guidelines. we present our selection process and a detailed justification for the fleet of flagship species that we selected. our results are a list of eight flagship species forming a flagship fleet, including two small- and medium-sized mammals, the degu (octodon degus) and the culpeo fox (lycalopex culpeaus), two birds, ...201323479265
genetic recombination is targeted towards gene promoter regions in dogs.the identification of the h3k4 trimethylase, prdm9, as the gene responsible for recombination hotspot localization has provided considerable insight into the mechanisms by which recombination is initiated in mammals. however, uniquely amongst mammals, canids appear to lack a functional version of prdm9 and may therefore provide a model for understanding recombination that occurs in the absence of prdm9, and thus how prdm9 functions to shape the recombination landscape. we have constructed a fine ...201324348265
estimating temporal independence of radio-telemetry data on animal activityradio-telemetry is an excellent tool for gathering data on the biology of animals and their interactions with the environment they inhabit. many methods have been developed for analyses of spatial information, on home range size and utilization density. activity patterns are often described using radio-tracking data, but no generally accepted method is currently available specifically for determining the temporal independence of this type of data for statistical inference. activity rhythms have ...199910373355
providing habitat for native mammals through understory enhancement in forestry plantations.the convention on biological diversity (cbd) expects forestry plantations to contribute to biodiversity conservation. a well-developed understory in forestry plantations might serve as a surrogate habitat for native species and mitigate the negative effect of plantations on species richness. we experimentally tested this hypothesis by removing the understory in monterey pine (pinus radiata) plantations in central chile and assessing changes in species richness and abundance of medium-sized mamma ...201324033701
hematology and serum biochemistry values of culpeo foxes (lycalopex culpaeus) from central chile.hematology and serum biochemistry values were determined for 31 healthy captive and free-ranging culpeo foxes (lycalopex culpaeus) sampled in central chile between 2008 and 2012. the influences of sex, age, and origin (captive versus free-ranging foxes) on the blood parameters were evaluated. the blood values determined were generally comparable to commonly reported values for other wild canid species and the domestic dog. no differences attributable to sex were observed for any parameter. juven ...201425314826
evaluation of neophobia and its potential impact upon predator control techniques: a study on two sympatric foxes in southern patagonia.an alternative approach to increase the efficiency of predator control and selectivity is to consider the natural behavioural repertoire of the target species and how such behaviours may increase their vulnerability. neophobia, or the hesitancy to approach a novel food item, object, or place, is an important factor influencing the investigative behaviour of animals, and its incorporation to predator control techniques may help to reduce losses of livestock to predators. in this study, we simulta ...201323124014
comparison of chemical immobilization methods in wild foxes (pseudalopex griseus and pseudalopex culpaeus) in chile.we immobilized individuals of two species of free-ranging south american foxes, including 28 chilla foxes (pseudalopex griseus; 13 males and 15 females) and five culpeo foxes (pseudalopex culpaeus; four males and one female). animals were trapped and chemically immobilized with ketamine and medetominide (k-m), ketamine and xylazine (k-x), or tiletamine-zolazepam (z). heart and respiratory rates, hemoglobin oxygen saturation (spo2), rectal temperature, and palpebral and anal reflexes were measure ...201020966271
[geographic variation of the fox lycalopex culpaeus (mammalia, canidae) in chile: taxonomic implications].we studied the geographic variation of skulls of lycalopex culpaeus using qualitative and quantative analyses. the sampling area covered chile, from its northern portion, to tierra del fuego and the neighbouring hoste island, as well as part of argentina. five subespecies are currently recognized from this large area. we found two morphotypes that are segregated geographically. both groups mostly differ by morphometric attributes, followed by qualitative features. specimens from northern chile ( ...200919637719
diurnal human activity and introduced species affect occurrence of carnivores in a human-dominated landscape.diurnal human activity and domestic dogs in agro-forestry mosaics should theoretically modify the diurnal habitat use patterns of native carnivores, with these effects being scale-dependent. we combined intensive camera trapping data with bayesian occurrence probability models to evaluate both diurnal and nocturnal patterns of space use by carnivores in a mosaic of land-use types in southern chile. a total of eight carnivores species were recorded, including human-introduced dogs. during the day ...201526368395
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