Maria de las Mercedes Guerisoli

National Scientific and Technical Research Council | conicet

Purpose of Review Habitat fragmentation is recognized as a central issue in conservation biology, provoking a discontinuity in the distribution of resources. This in turn, leads to isolation of populations and increases extinction risks. South America holds a very diverse and endemism-rich fauna of mammals, which are being increasingly threatened b...

El zorro colorado Lycalopex culpaeus (Molina 1782) es considerado como un depredador oportunista y hábitat-generalista y, aunque es supuestamente nocturno, también es capaz de adaptar su comportamiento en función del nicho ecológico más adecuado, adoptando también patrones de actividad diurna. El objetivo de este estudio fue evaluar su patrón diari...

El zorro colorado Lycalopex culpaeus (Molina 1782) es considerado como un depredador oportunista y hábitat-generalista y, aunque es supuestamente nocturno, también es capaz de adaptar su comportamiento en función del nicho ecológico más adecuado, adoptando también patrones de actividad diurna. El objetivo de este estudio fue evaluar su patrón diari...

El pudú Pudu puda (Molina 1782), uno de los ciervos más pequeños del mundo, es una especie endémica y enigmática que habita los bosques templados de Argentina y Chile. Debido a su importante papel ecológico y al escaso conocimiento de la ecología de la especie, realizamos un estudio de los patrones de actividad del pudú con el fin de aportar inform...

El pudú Pudu puda (Molina 1782), uno de los ciervos más pequeños del mundo, es una especie endémica y enigmática que habita los bosques templados de Argentina y Chile. Debido a su importante papel ecológico y al escaso conocimiento de la ecología de la especie, realizamos un estudio de los patrones de actividad del pudú con el fin de aportar inform...

‘Rewilding’ is a nature conservation strategy gaining prominence worldwide. Established in the Northern Hemisphere, rewilding initiatives have increasingly been proposed in Argentina, but their relative merits, feasibility of implementation and accountability have lacked adequate analysis and discussion. Recently, 125 scientists and practitioners w...

In coexisting carnivorans (Carnivora) relying on the same food resources, the dominant species imposes a cost on the inferior competitor by limiting its foraging ability. Tigers Panthera tigris and leopards Panthera pardus live in sympatry in most Asian countries and, because of their similar trophic niche, ‘interference competition’ may exist betw...

En los últimos años se han desarrollado en Argentina distintas intervenciones relacionadas con el rewilding (o re-asilvestramiento), abarcando una variedad de especies (e.g., grandes carnívoros, ungulados, psitácidos) y ecorregiones (e.g., Chaco Húmedo y Seco, Estepa Patagónica). El reasilvestramiento es definido como una estrategia aplicada en el...

Activity is an important aspect of animal behavior. Intrinsic and extrinsic factors can shape species activity patterns, which can alter and reshape several ecological aspects of the species. Human disturbance is known to modify the activity patterns of various species. The Marsh deer (Blastocerus dichotomus) is the largest Neotropical cervid, and...

The concentration of people living in small areas has increased in the last decade, with more than half of the world's population living in cities. This is particularly true for Latin America, a region with no particular high contribution to the world total population, but hosts several large cities. The increase in urbanization causes several thre...

Human-wildlife interactions can be negative when the needs and behavior of wildlife negatively influence human goals, or vice-versa, and management of these interactions may lead to conflict. Here, we review information on negative interactions between humans and wildlife in South America contained in 136 scientific publications, focusing on terres...

Deer species can cause serious damages to trees through browsing and antler rubbing, and these impacts can generate significant economic losses. As a tool to minimize damages to trees by deer, repellents based on odor, visual and/or taste stimulus have been developed and tested. Repellents vary greatly in terms of costs, forms of use, duration, and...

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...

Seminario LAS DIMENSION ES DEL CONFLICTO HU M AN O-VIDA SILVESTRE Docentes: Lic. Alexandra Cravino Mol Dra. María de las Mercedes Guerisoli Actualmente el conflicto entre humanos y vida silvestre es una de las dinámicas más complejas y de alta prioridad para la conservación de la vida silvestre. Este conflicto involucra escenarios donde una esp...

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...

The Guigna Leopardus guigna is an endemic felid of the Valdivian Temperate Forests in Argentna and Chile, and of the Chilean Matorral ecoregion. It is a small-sized felid (1.6–2.5 kg), one of the least known wild felids, and categorized as Vulnerable to extncton. Here, we present two new reliable records in Los Alerces Natonal Park, Chubut Province...

En este trabajo reportamos el hallazgo de restos de basura en heces de puma en el Parque Nacional Los Glaciares (PNLG), provincia de Santa Cruz (República Argentina). Los residuos fueron encontrados en tres heces de puma colectadas en los senderos de trekking dentro del PNLG, e incluyeron los siguientes ítems: hilo, fósforos y dos tipos de polietil...

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...

Mammal herbivores, and specially deer, can cause severe damages to agriculture, producing economic losses. Repellents based on odor, visual and/or taste stimuli have been tested to minimize these damages, but their global effectiveness has not been quantified. A systematic literature review on the use of repellents to reduce damage by deer was carr...

We document 19 new records of Dioctophyme renale in Chrysocyon brachyurus for Argentina over a period of 15 years. Geographic coordinates for each record, epidemiological data, and diagnostic methods used in each case are reported. This information contributes to increase our knowledge of this parasite/host association.

A pelt of an Andean Cat specimen was discovered in La Rioja Province, Argentina, a region with no previous data recorded, located in a large distribution gap between the two currently identified evolutionarily significant units (ESU). This new record not only improves our knowledge about the species distribution but can also provide relevant geneti...

Tesis de Biología

http://cma.sarem.org.ar/es/especie-nativa/puma-concolor

Wild Felid Monitor Summer Issue.

Wild Felid Monitor Summer Issue

Caracterización del daño generado por ciervo de los pantanos Blastocerus dichotomus en las plantaciones forestales del Delta del Paraná: hacia el diseño de un sistema push-pull

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...

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...

A nivel mundial, los ciervos (Familia Cervidae) ocasionan más daño sobre cultivos agrícolas, forestaciones y plantaciones ornamentales que cualquier otra especie de la fauna silvestre. Diferentes métodos, mayormente basados en estímulos odoríferos y/o de sabor, han sido propuestos para repelerlos, obteniéndose distintos niveles de éxito. El ciervo...

Las técnicas de vanguardia que utilizan ADN extraído a partir de excrementos y muestras de tejidos, incluso las de especímenes de museo, han aportado nuevas herramientas para obtener información, antes solo accesible a través de costosas capturas de animales y radiotelemetría. Para éste estudio se analizaron 122 muestras de puma (cueros=47, huesos=...

• 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...

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...

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...

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...

We investigated puma genetic diversity and population structure in Argentina, increasingly affected by habitat loss, using 40 puma samples including scats, dead animals and museum specimens.

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

Livestock depredation is one of the most frequent sources of conflict between humans and carnivores throughout the world, representing a serious problem for carnivore conservation. We investigated the conflict between puma (Puma concolor) and livestock ranchers in the two southernmost counties of Buenos Aires Province (Argentina), an area of 25,000...

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...

We investigated wolf (Canis lupus) food habits in the National Park of Abruzzo, Lazio and Molise (PNALM, Italy) by scat analysis, accounting for seasonal, annual and inter-pack variation. Scats collection (2005-2010) involved three different techniques (systematic collection throughout the study area, snow-tracking and rendez-vous site inspection),...