| potential existence of a sylvatic cycle of taenia ovis krabbei in patagonia, argentina. | red deer (cervus elaphus) were introduced in southern latin america about a century ago and characteristics of the invasion raise concerns over their epidemiological role for various diseases. we report on the possible occurrence of taenia ovis krabbei established in a sylvatic cycle in patagonia. hook characters, size, appearance, and location of a cysticercus from a wild red deer are consistent with taenia ovis ovis or t. o. krabbei. although it is not possible to differentiate between t. o. o ... | 2006 | 16289565 |
| first records of the louse solenopotes binipilosus (insecta: phthiraptera) and the mite psoroptes ovis (arachnida: acari) from wild southern huemul (hippocamelus bisulcus). | two species of phthiraptera, bovicola caprae (ischnocera: bovicolidae) and solenopotes binipilosus (anoplura: linognathidae), and one species of mite, psoroptes ovis (acari: psoroptidae), were recorded on huemul (hippocamelus bisulcus) in chile. the sucking louse s. binipilosus and the mite p. ovis are reported for the first time from this host. | 2009 | 19901405 |
| evidence of bovine viral diarrhea, but absence of infectious bovine rhinotracheitis and bovine brucellosis in the endangered huemul deer (hippocamelus bisulcus) in chilean patagonia. | we screened 18 endangered chilean huemul (hippocamelus bisulcus) for antibodies to infectious agents. we detected no antibody to bovine herpesvirus-1 (bhv-1) or brucella abortus (ba); two huemul had antibody to bovine viral diarrhea virus (bvdv). cattle (n=35) had antibody to bvdv and bhv-1 but not ba. | 2013 | 23778636 |
| corynebacterium pseudotuberculosis infection in patagonian huemul ( hippocamelus bisulcus ). | corynebacterium pseudotuberculosis is an intracellular bacteria and the etiologic agent of caseous lymphadenitis in domestic and wildlife species. we report c. pseudotuberculosis infection in patagonian huemul ( hippocamelus bisulcus ) from the cerro castillo national reserve, region of aysen, chile. subcutaneous abscesses in the abdominal and pectoral regions from two animals were sampled and bacteriologic isolation was performed. in both cases, we isolated a c. pseudotuberculosis strain belong ... | 2017 | 28323562 |
| conservation strategies for species affected by apparent competition. | apparent competition is an indirect interaction between 2 or more prey species through a shared predator, and it is increasingly recognized as a mechanism of the decline and extinction of many species. through case studies, we evaluated the effectiveness of 4 management strategies for species affected by apparent competition: predator control, reduction in the abundances of alternate prey, simultaneous control of predators and alternate prey, and no active management of predators or alternate pr ... | 2013 | 23282104 |
| osteopathology and selenium deficiency co-occurring in a population of endangered patagonian huemul (hippocamelus bisulcus). | about 1,000 endangered patagonian huemul deer (hippocamelus bisulcus) remain in chile and 350-500 in argentina. most groups (>100) are not recovering, and prevalence of osteopathology in argentina was at least 57%. here i describe relevant cases of osteopathology from a chilean population which, however, recently also provided data on trace mineral status, supporting the initial hypothesis that nutrition may be a primary etiologic factor. additionally, recent data on bone chemical composition of ... | 2015 | 26233940 |
| cross-amplification of nonspecific microsatellites markers: a useful tool to study endangered/vulnerable species of southern andes deer. | thirty-nine microsatellite loci that are highly conserved in red deer, sika deer, reindeer, soay sheep, and other artiodactyls were tested in two vulnerable and endangered neotropical deer (pudu: pudu puda and huemul: hippocamelus bisulcus) with the aim of producing a standardized set of markers that can be used successfully in noninvasive samples from these species. we also compared these nonspecific loci against eight polymorphic loci that were recently developed for huemul to determine whethe ... | 2014 | 24841651 |
| echinococcus granulosus in the endangered patagonian huemul (hippocamelus bisulcus). | cystic echinococcosis (ce) is a zoonotic parasitic disease associated with echinococcus granulosus. the parasite is maintained by domestic and wild canids as definitive hosts with several ungulate species as intermediate hosts in domestic and peridomestic transmission cycles. in chile, ce is endemic, and the role of livestock and dogs (canis lupus familiaris) in the cycle and the accidental infection of humans are widely documented at rural sites. however, the role of wild herbivores in wild cyc ... | 2019 | 30789781 |
| protected areas' effectiveness under climate change: a latitudinal distribution projection of an endangered mountain ungulate along the andes range. | climate change is one of the greatest threats to biodiversity, pushing species to shift their distribution ranges and making existing protected areas inadequate. estimating species distribution and potential modifications under climate change are then necessary for adjusting conservation and management plans; this is especially true for endangered species. an example of this issue is the huemul (hippocamelus bisulcus), an endemic endangered deer from the southern andes range, with less than 2,00 ... | 2018 | 30013852 |
| elusive cranial lesions severely afflicting young endangered patagonian huemul deer. | most subpopulations of endangered huemul deer (hippocamelus bisulcus) fail to recover, frequently due to osteopathology. equivalent pathology was detected only postmortem in an additional deer 365 km further north, stressing the need to improve clinical evaluations of live huemul. | 2018 | 30176912 |
| putative parapoxvirus-associated foot disease in the endangered huemul deer (hippocamelus bisulcus) in bernardo o'higgins national park, chile. | the huemul (hippocamelus bisulcus) is an endangered cervid endemic to southern argentina and chile. here we report foot lesions in 24 huemul from bernardo o'higgins national park, chile, between 2005 and 2010. affected deer displayed variably severe clinical signs, including lameness and soft tissue swelling of the limbs proximal to the hoof or in the interdigital space, ulceration of the swollen tissues, and some developed severe proliferative tissue changes that caused various types of abnorma ... | 2019 | 30995215 |
| anatomy, morphometry and radiography in the thoracic limb bones of the patagonian huemul deer (hippocamelus bisulcus). | the aim of this study was to provide morphometric, anatomic and radiographic data of the thoracic limb bones of the patagonian huemul (hippocamelus bisulcus) including a functional interpretation of this, as a reference for clinical use, biomedical research and teaching purposes. currently, the patagonian huemul deer is in danger of becoming extinct due to multiple causes. research carried out for its conservation has focused mainly on its ecology and pathology, leaving gaps in biological knowle ... | 2020 | 32202342 |
| nutrition as an etiological factor causing diseases in endangered huemul deer. | distinct diseases prevent endangered huemul deer (hippocamelus bisulcus) recovery. fundamental etiological factors include nutriments, a mayor component of habitat quality. undernutrition affects growth, skeletal development, osteopathology, reproduction and immunocompetence: this paper amplifies data corroborating micro-nutrient deficiencies among huemul. | 2020 | 32513255 |
| functional limb anatomy in a refugee species: the endangered patagonian huemul deer (hippocamelus bisulcus). | early naturalists already considered huemul rare, refuged and a stocky, short-legged mountain deer, 163 years before declared endangered (1972). anatomically, huemul do not overlap with rock-climbers previously considered analogous, as corroborated in this paper by including additional huemul cases. assertions that population declines are caused principally via livestock infections remain unfounded. instead, osteopathology in multiple populations across 1,000 km, affecting 57% among dead and 86% ... | 2020 | 33045110 |
| sarcocystis spp. infection in south american deer huemul (hippocamelus bisulcus) and pudu (pudu puda) from patagonian national parks, argentina. | sarcocystis spp. are intracellular protozoan parasites with heteroxenous life cycles. this study described sarcocystis spp. infection in adult south american native deer huemul (hippocamelus bisulcus) and pudu (pudu puda). heart, diaphragm, tongue, and skeletal muscle samples were collected from 5 huemuls and 2 pudus, found dead in national parks. direct microscopic examination, transmission electron microscopy, pcr, and sequencing were performed. sarcocystis spp. microscopic thin-walled cysts w ... | 2020 | 32951141 |
| ancient parasites from endemic deer from "cueva parque diana" archeological site, patagonia, argentina. | the narrow andean-patagonian temperate rainforest strip in the west of southern south america is inhabited by two endemic species of cervids, the southern pudu (pudu puda) and the huemul (hippocamelus bisulcus), both cataloged as near threatened and threatened species, respectively. one of the possible causes of their declined number is the susceptibility to livestock diseases. significant zooarchaeological records of both deer have been found throughout the holocene from patagonia. the present ... | 2017 | 28342040 |
| troubling disease syndrome in endangered live patagonian huemul deer (hippocamelus bisulcus) from the protected park shoonem: unusually high prevalence of osteopathology. | the last 1500 endangered patagonian huemul deer (hippocamelus bisulcus) exist in > 100 groups which are not recovering. prevalence of osteopathology in dead huemul was 57+% (argentina), whereas similar cases in chile were accompanied by selenium deficiency. the first clinical cases from live wild huemul confirm widespread osteopathology which explains short life spans, low recruitment, and thus absence of population recovery. | 2017 | 29246255 |
| an alternative interpretation of plasma selenium data from endangered patagonian huemul deer (hippocamelus bisulcus). | | 2014 | 25121403 |
| blood mineral concentrations in the endangered huemul deer (hippocamelus bisulcus) from chilean patagonia. | concentrations of calcium, magnesium, copper, zinc, and selenium were measured in plasma from 11 huemul (hippocamelus bisulcus) from chilean patagonia. except for zinc and copper, concentrations of these minerals were similar to those of other deer species. | 2014 | 24171561 |
| age-independent osteopathology in skeletons of a south american cervid, the patagonian huemul (hippocamelus bisulcus). | the huemul (hippocamelus bisulcus), an endemic patagonian deer, has been endangered for decades. although conservation in argentina has been directed at the 350-600 remaining huemul, the population has not recovered. in initial studies on the potential effects of diseases on huemul population dynamics, skeletal remains collected between 1993 and 2007 in the andes (41-45 degrees s, 71.5-72 degrees w) were examined macroscopically for osteopathologic changes. bones from six huemul were free of les ... | 2008 | 18689649 |