Estela Maris Luengos Vidal

Estela Maris Luengos Vidal
National Scientific and Technical Research Council | conicet · CCT Bahia Blanca

Mg, Dra Ciencias Biologicas

About

75
Publications
18,116
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Introduction
Currently I work at INBIOSUR , as a researcher. I am also an associate professor in the Dep Biological Biology and Pharmacy UNS. Although during my career I have worked with different species of mammals in ecological and behavioral aspects, my training is mainly with capture and telemetry with carnivores. My current project is about conflicts between livestock and carnivores, looking for solutions for the coexistence of man and his productive activities with the conservation of the carnivores
Additional affiliations
May 1996 - present
Universidad Nacional del Sur
Position
  • Professor (Assistant)

Publications

Publications (75)
Technical Report
Full-text available
This article in Spanish (published in the Argentine NGO Pumakawa{s newsletter) summarizes what we have learnt in more than a decade of research on the conflict between livestock production and wild carnivores in the ranchlands of the southern Espinal, in the Argentine province of Buenos Aires.
Chapter
The dynamics of an ecological system are closely related to the processes that occur in the adjacent environments. Consumers living in terrestrial habitats can take advantage of allochthonous resources that originate in highly productive aquatic environments and that may enable their populations to reach higher densities than those supported by lan...
Chapter
Understanding the role of marine mammals in marine ecosystems provides a context to assess the potential effect of depredation on their prey populations and the structure of communities. Moreover, it helps to figure out the impacts that prey populations suffer from fisheries and other anthropic activities. This understanding can help to foster a ra...
Article
Full-text available
The Pampas fox (Lycalopex gymnocercus) has suffered from hunting and human persecution for decades, both for fur trade or due to conflicts with livestock. However, studies assessing the effects of hunting pressure on this canid population ecology are lacking. In this work, we assessed the influence of several hunting-related variables on the daily...
Article
Full-text available
Understanding the food habits of mammalian carnivores is crucial for the comprehension of the role of apex-predators in maintaining healthy ecosystems. The puma is currently the most widespread top predator and the carnivore most frequently involved in conflicts with humans in the Americas. We analyzed puma diet in the South American temperate regi...
Article
Loss of livestock is one of the greatest sources of conflict between humans and large felids worldwide. The puma Puma concolor is the most widespread apex predator in the Americas, and conflicts between this felid and humans are common throughout its geographical range. In response to predation on livestock, humans persecute and hunt pumas. We iden...
Article
Full-text available
Land-sea interface is an ecotone where the intersection of marine and terrestrial ecosystems create unique ecological conditions for terrestrial mobile species and freshwater-adapted organisms to exploit marine-derived food resources. Mammalian carnivores play an important role in almost any ecosystem where they live due to their top-down (or tr...
Preprint
Full-text available
Land-sea interface is an ecotone where the intersection of marine and terrestrial ecosystems create unique ecological conditions for terrestrial mobile species and freshwater-adapted organisms to exploit marine-derived food resources. Mammalian carnivores play an important role in almost any ecosystem where they live due to their top-down (or troph...
Article
Full-text available
Three protocols (Ketamine–Medetomidine, Ketamine–Xylazine and Ketamine–Medetomidine–Midazolam) were used to immobilize 2 sympatric wild cat species, the critically endangered Andean cat (Leopardus jacobita), and the relatively more common Pampas cat (L. colocolo), in the high Andes Mountains of Argentina between September 2011 and May 2016. Based o...
Article
Full-text available
Habitat loss, poaching, and legal hunting are the main causes of decline in populations of pumas (Puma concolor) globally. We used camera trapping to assess the habitat use and daily activity patterns of pumas, and we identified the major factors affecting this species, in a human-dominated landscape in central Argentina. The intensity of habitat u...
Article
We report data on the spatial ecology and habitat selection of eight adult Geoffroy's cat Leopardus geoffroyi (five males and three females) that were radiotracked in an area of the central Argentine Espinal. Mean home range size varied from 2.2 ± 1.9 km² (Kernel95%) to 2.8 ± 2.4 km² (MCP100%), with male home ranges 4.1 larger than those of females...
Poster
Full-text available
El estudio de la dieta de grandes carnívoros en áreas de intenso conflicto con la ganadería, como es el caso del sur del Espinal para el puma, es importante para entender la relevancia de las especies silvestres y domésticas. En 2014-2016 se recolectaron 16 heces en los partidos de Patagones y Villarino (Provincia de Buenos Aires). La identificació...
Article
Full-text available
Biological invasions are one of the main components of human-caused global change and their negative impact on invaded ecosystems have long been recognized. Invasive mammals , in particular, can threaten native biodiversity and cause economic impacts in the region where they are introduced, often through a wide range of conflicts with humans. Altho...
Data
List of the 32 single-species single-season occupancy models fit for wild boar Sus scrofa in rangelands of central Argentina. Ψ: occupancy parameter; p: detection parameter; df: degree of freedom; AICc: Akaike Information Criterion corrected for small sample size; Wi: Akaike weight. PG: proportion of grassland, PGB: proportion of grassland with bus...
Data
Raw data. For each site the table shows the capture history for wild boar S. scrofa and the value of each predictor using to fit single-species single-season occupancy models. O1-O6: occasions, FD: farm density, DS: distance to settlements, PC: proportion of cropland, PS: proportion of shrubland, PG: proportion of grassland, PGB: proportion of gras...
Article
• Surplus killing (i.e. predation in which predators kill more prey than necessary to satiate their hunger) appears to be widespread in carnivores and has the potential to exacerbate human–carnivore conflict. Nevertheless, little is known about the frequency of surplus killing or about its impact on livestock. • We review the information available...
Preprint
Full-text available
Biological invasions are one of the main component of human-caused global change and their negative impact on the invaded ecosystem have long been recognized. Invasive mammals, in particular, severely threaten native biodiversity and can cause economic impacts in the region where they are introduced becoming responsible for a wide range of conflict...
Article
Andean and Pampas cats are 2 Neotropical small felids of the genus Leopardus. Until now, most of the scarce morphometric data published for these felids, especially the rare Andean cat (L. jacobita), were obtained from museum skins and skulls of undetermined sex. Here, we present morphological data from Pampas cats (L. colocolo) and the largest sam...
Article
Full-text available
Livestock predation is one of the major causes of conflicts between humans and pumas (Puma concolor). Using data from interviews to ranchers and kill-site inspections, we characterized puma-livestock conflicts in Villarino and Patagones counties of central Argentinean rangelands. Depredation was considered the major cause of livestock losses, and p...
Article
Full-text available
The key role that wild carnivores play in ecosystems is threatened by human persecution and habitat alteration worldwide. The SW of Buenos Aires province, Argentina, is a region strongly modified by the spread of agriculture and where, in the last years, there has been an increase in carnivore predation on livestock. The simultaneous study of the e...
Article
Full-text available
We report new occurrence records of Puma yagouaroundi (É. Geoffroy, 1803), a widely distributed but little known Neotropical carnivore, obtained over the last 10 years in Buenos Aires province, central Argentina. The records were collected by camera trapping surveys (n = 384 stations) and 195 interviews with local inhabitants. Our results improve o...
Article
Full-text available
Further comments on the use of interview-based data for species distribution studies: a reply to Petracca & Frair - N. Caruso, E. Luengos Vidal, M. Guerisoli, M. Lucherini
Article
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DOWNLOAD this article in Blog Alex Bager (http://bab.empreendedor-academico.com.br/). To investigate the evolution and biogeography of an endemic group of South American foxes, we examined mitochondrial DNA control region sequences for 118 individuals belonging to all six extant species of the genus Lycalopex. Phylogenetic and molecular dating anal...
Article
We assessed chemical immobilization and success of trapping devices on a little-known South American mustelid, the lesser grison (Galictis cuja). From December 1998 to June 2006, we live-trapped (n = 23) and radiomarked (n = 9) free-ranging lesser grisons in 2 areas of the Pampas grasslands of Argentina. Both box-traps and rubber-padded leg-hold tr...
Article
Full-text available
Interviews with local people have been widely used by biologists as a cost-effective approach to studying certain topics in wildlife ecology and conservation. However, doubts still exist about the validity and quality of the information gathered, especially in studies targeting cryptic or elusive species, such as carnivores. We assessed the reliabi...
Article
Full-text available
This study describes and compares the activity patterns of free-ranging Molina’s hog-nosed skunks (Conepatus chinga) in a protected area (PA) and in a cropland area (CA) in the Pampas grassland of Argentina. Sixteen skunks (PA: three males, four females; CA: three males, six females) were captured and monitored using radio-telemetry techniques for...
Article
Full-text available
We studied the feeding ecology of Molina’s hog-nosed skunk (Conepatus chinga) in a protected area of the Pampas grassland by comparing the content of scats (140 samples) to prey abundance (estimated by invertebrate capture rates from 38 pitfall trap grids). Fecal analysis supported a largely insectivorous diet, with small vertebrates and carrion re...
Article
Full-text available
Two protocols to immobilise free-ranging Pampas foxes for ear-tagging or radio-collaring were evaluated. One hundred fifteen foxes were injected with ketamine-xylazine (K-X) and thirteen with tiletamine-zolazepam (T-Z). The use of both T-Z and K-X combinations typically resulted in a smooth induction and recovery. In 86% of the cases K-X protocol w...
Article
Full-text available
In order to investigate the factors affecting den site selection in Conepatus chinga, we identified and characterized 199 (males: n = 108, females: n = 91) dens used by 7 radio-tracked skunks from August 2002 to October 2005 in a protected area of the Argentine Pampas grassland. Skunks frequently reused dens (25.1%), without significant differences...
Article
Full-text available
We present a total of 190 new distribution records of three little-known mammalian carnivores ( Conepatus chinga, Galictis cuja, and Lycalopex culpaeus) obtained using camera trap techniques and direct observation in the highlands of Jujuy province, northwestern Argentina. These new records extend the present known distributions of these three...
Article
Full-text available
Because of their similarities, pampas cats Oncifelis colocoloand Andean cats Oreailurus jacobitaare usually studied simultaneously in areas where they overlap, but these similarities have been often an obstacle for researchers. The foot morphology was reported as useful to differentiate these species and potentially develop monitoring programs b...
Conference Paper
Full-text available
Community participation is a fundamental component of wildlife conservation strategies worldwide. Many tools have been employed to increase the engagement of communities in conservation programs but their results are rarely assessed. Using a case study approach from the High Andes of northwestern Argentina, we evaluate the community participation s...
Article
Full-text available
We radiotracked 16 (6 males, 10 females) adult Molina’s hog-nosed skunks (Conepatus chinga) to examine habitat selection using compositional analysis at 2 spatial scales in a protected area and a landscape fragmented by agriculture. To aid in understanding the habitat use of skunks, the abundance of invertebrates was estimated in each habitat. Habi...
Article
Full-text available
The Pampas fox (Pseudalopex gymnocercus) is a generalist South American canid that adapts well to the human-dominated landscape of the Argentine pampas, which is largely converted to agriculture and pastures. However, little is known about its ranging behaviour and spatial organization in relict native grasslands. We captured and tracked 13 radio-t...
Article
Full-text available
Geoffroy's and Pampas cats are small felids with large distribution ranges in South America. A camera trap survey was conducted in the Espinal of central Argentina to estimate abundance based on capture—recapture data. For density estimations we used both non-spatial methods and spatially explicit capture—recapture models (SECR). For Geoffroy's cat...
Article
Full-text available
This study examined the spatial ecology of Geoffroy's cats, Leopardus geoffroyi, living in a protected area surrounded by croplands in the Argentine grasslands. A total of six different adults were marked with 14 radio-collars from 2001 to 2005 but only three (one female and two males) produced a meaningful amount of data (54-135 positions). Total...
Article
Full-text available
We injected 27 adult Molina's hog-nosed skunks (Conepatus chinga) intramuscularly by hand with ketamine hydrochloride (KH) and xylazine hydrochloride (XH) in the Pampas grassland of Argentina. Skunks were immobilized with a mean (±SD) dosage of 24.9±6.5 mg/kg KH and 1.9±0.6 mg/kg XH. The mean effective dosages of KH (27.6 mg/kg) and XH (1.7 mg/kg)...
Article
Full-text available
En zonas del norte de Argentina, diversas especies de Felidae de pequeño tamaño se sobrelapan en sus distribuciones geográficas. Cuando los investigadores de campo encuentran huellas o excrementos, resulta difícil distinguir de cuál de esas especies se trata (Oncifelis geoffroyi, O. guigna y Lynchailurus colocolo), lo que imposibilita saber con exa...
Article
Full-text available
To understand the activity and movement patterns of Leopardus geoffroyi, we compared its behavior by radio-tracking 10 individuals in two areas of the Pampas grassland of Argentina: Campos del Tuyú Wildlife Reserve (CdT; 2F, 2M, n=1753activity fixes), and Ernesto Tornquist Provincial Park (ETPP; 4F, 2M, n=1700fixes), an area more strongly affected...
Article
Full-text available
We radio-tracked 16 individuals (6 males, 10 females) of the little known Molina's hog-nosed skunk (Conepatus chinga (Molina, 1782)) and compared home-range dynamics, movement rates, and densities between a protected area and a landscape fragmented by agriculture. The mean home-range size (95% fixed kernel) was 166.7 ha (SD = 107.5 ha), without sig...
Article
Full-text available
During one year, we radiotracked two female and two male Molina’s hog-nosed skunksConepatus chinga (Molina, 1782), a little studied mephitid, in the Pampas of central Argentina, to analyze the static and dynamic interactions between individuals. Mean home range overlap was large (44.5%), but males shared a smaller proportion of their home ranges th...
Article
Full-text available
Introduction In general, the social organization of solitary species is based on territoriality: both males and females defend their territories from other individuals of the same sex (Rogers 1977, Powell 1979). In this context, males usually range over larger areas than females, and home range overlap is wider intersexually than intrasexually (Git...
Article
Full-text available
Mountain vizcachas are large rodents that constitute the main prey of the High Andes meso-carnivores. We compared the line transect pellet count, observation rate and photographic rate methods to estimate the relative abundance of Mountain vizcachas in the High Andes ecosystems. Although a more formal validation based on the comparison with true ab...
Article
Full-text available
Although the ecological data obtained from protected areas showed a certain degree of flexibility in the Geoffroy´s cat Leopardus geoffroyi foraging and spatial behaviour, it was not clear to what extent this species is capable of surviving in the highly modified Pampas grassland or whether this ecoregion should be excluded from this cat?s current...
Article
Full-text available
Lycalopex gymnocercus (Fischer, 1814) is a canid commonly called the Pampas fox. A sexually dimorphic fox-like carnivore of medium size with reddish coloration on sides and white on the ventral surface, it is 1 of 6 species in the genus Lycalopex. It occurs in eastern Bolivia, western and central Paraguay, Uruguay, north and central Argentina, and...
Article
Full-text available
Although rareness is the main criterion used to list the Andean cat Leopardus jacobita as endangered, information on its population abundance is lacking. During 14 expeditions to north-western Argentina, we recorded the culpeo Lycalopex culpaeus at all sites where we interviewed local people, the Pampas cat Leopardus colocolo at 85.2% of sites and...
Article
Full-text available
We report new data on the intersexual and geographical variation in body mass of the Geoffroy's cat (Oncifelis geoffroyi d'Orbigny and Gervais 1844), a little known small cat from South America, and combine them with the existing information to compare alternative hypotheses for variation in body mass. Most data on the body mass of O. geoffroyi hav...
Article
We report new data on the intersexual and geographical variation in body mass of the Geoffroy's cat (Oncifelis geoffroyi d'Orbigny and Gervais 1844), a little known small cat from South America, and combine them with the existing information to compare alternative hypotheses for variation in body mass. Most data on the body mass of O. geoffroyi hav...
Article
Full-text available
Argentina is the host of 10 wild felids (28% of the world total). Although the Cat Specialist Group Action Plan has classified the conservation status of Argentine cats asrelatively good, the ranking was based on a largely incomplete database for at least 80% ofthe species. Here we review the current status of knowledge and research effort of Argen...