Conservation implications for the Himalayan wolf Canis (lupus) himalayensis

We provide insights into pack composition and den site parameters of the Himalayan wolf Canis (lupus) himalayensis based on observations of free-ranging wolves in three study areas in Nepal. We combine this with a social survey of the local Buddhist communities regarding human–carnivore conflict, to draw inferences for conservation practice in the Nepalese Himalayas. We recorded eight wolf packs (with an average composition of two adults and three pups), and found five home sites in high-altitude shrubland patches within alpine grasslands at 4,2790-4,940 m altitude. There was a spatial–temporal overlap of wolf home sites and livestock herding during spring and summer, which facilitated human–wolf conflict. The litters of three out of five wolf packs found in Dolpa during 2016 were killed by local people in the same year. In Nepal compensation is offered for depredation by snow leopards Panthera uncia, with associated lowering of negative attitudes, but not for depredation by wolves. We recommend the implementation of financial and educational conservation schemes for all conflict-causing carnivores across the Himalayan regions of Nepal

Recent jaguar records confirm the conservation value of the Baritú–Tariquía corridor between Argentina and Bolivia

Effective transboundary corridors play a crucial role in jaguar Panthera onca conservation. Local residents reported jaguar sightings along the Baritú–Tariquía Biological Corridor, which prompted us to carry out this camera-trap survey. We surveyed an area of 1,243 km2 across the corridor to confirm jaguar presence. We used 50 single camera stations, with cameras placed c. 5 km apart. We placed the cameras along trails, streams and mountain ridges. We recorded jaguars at seven sites across the Corridor; at least three different individuals were identified. These records confirm the presence of the jaguar in the Baritú–Tariquía Biological Corridor between Argentina and Bolivia, a trans-frontier area of the Austral Yungas facing multiple threats but hosting one of the southernmost jaguar populations. Conservation efforts in border regions can promote collaboration and synergies between agencies and other conservation stakeholders, with important implications for wide-ranging predators such as jaguars and their habitats

Rabies and Distemper Outbreaks in Smallest Ethiopian Wolf Population

Widespread deaths recently devastated the smallest known population of Ethiopian wolves. Of 7 carcasses found, all 3 tested were positive for rabies. Two wolves were subsequently vaccinated for rabies; 1 of these later died from canine distemper. Only 2 of a known population of 13 wolves survived

Bioclimatic constraints to Andean cat distribution: A modelling application for rare species

Aim To identify the bioclimatic niche of the endangered Andean cat (Leopardus jacobita), one of the rarest and least known felids in the world, by developing a species distribution model. Location South America, High Andes and Patagonian steppe. Peru, Bolivia, Chile, Argentina. Methods We used 108 Andean cat records to build the models, and 27 to test them, applying the Maxent algorithm to sets of uncorrelated bioclimatic variables from global databases, including elevation. We based our biogeographical interpretations on the examination of the predicted geographic range, the modelled response curves and latitudinal variations in climatic variables associated with the locality data. Results Simple bioclimatic models for Andean cats were highly predictive with only 3-4 explanatory variables. The climatic niche of the species was defined by extreme diurnal variations in temperature, cold minimum and moderate maximum temperatures, and aridity, characteristic not only of the Andean highlands but also of the Patagonian steppe. Argentina had the highest representation of suitable climates, and Chile the lowest. The most favourable conditions were centrally located and spanned across international boundaries. Discontinuities in suitable climatic conditions coincided with three biogeographical barriers associated with climatic or topographic transitions. Main conclusions Simple bioclimatic models can produce useful predictions of suitable climatic conditions for rare species, including major biogeographical constraints. In our study case, these constraints are also known to affect the distribution of other Andean species and the genetic structure of Andean cat populations. We recommend surveys of areas with suitable climates and no Andean cat records, including the corridor connecting two core populations. The inclusion of landscape variables at finer scales, crucially the distribution of Andean cat prey, would contribute to refine our predictions for conservation applications. © 2011 Blackwell Publishing Ltd.Fil: Marino, Jorgelina. University of Oxford; Reino UnidoFil: Bennett, Magdalena. University of Oxford; Reino UnidoFil: Cossios, Daniel. University of Montreal; CanadáFil: Iriarte, Agustin. Pontificia Universidad Católica de Chile; ChileFil: Lucherini, Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Fisiología Animal; ArgentinaFil: Pliscoff, Patricio. Universite de Lausanne; SuizaFil: Sillero Zubiri, Claudio. University of Oxford; Reino UnidoFil: Villalba, Lilian. Colección Boliviana de Fauna; BoliviaFil: Walker, Susan. Wildlife Conservation Society; Estados Unido

Threat analysis for more effective lion conservation

We use comparable 2005 and 2018 population data to assess threats driving the decline of lion Panthera leo populations, and review information on threats structured by problem tree and root cause analysis. We define 11 threats and rank their severity and prevalence. Two threats emerged as affecting both the number of lion populations and numbers within them: livestock depredation leading to retaliatory killing of lions, and bushmeat poaching leading to prey depletion. Our data do not allow determination of whether any specific threat drives declines faster than others. Of 20 local extirpations, most were associated with armed conflicts as a driver of proximate threats. We discuss the prevalence and severity of proximate threats and their drivers, to identify priorities for more effective conservation of lions, other carnivores and their prey

Rabies in Endangered Ethiopian Wolves

With rabies emerging as a particular threat to wild canids, we report on a rabies outbreak in a subpopulation of endangered Ethiopian wolves in the Bale Mountains, Ethiopia, in 2003 and 2004. Parenteral vaccination of wolves was used to manage the outbreak

Neotropical mammal responses to megafires in the Brazilian Pantanal

The increasing frequency and severity of human-caused fires likely have deleterious effects on species distribution and persistence. In 2020, megafires in the Brazilian Pantanal burned 43% of the biome's unburned area and resulted in mass mortality of wildlife. We investigated changes in habitat use or occupancy for an assemblage of eight mammal species in Serra do Amolar, Brazil, following the 2020 fires using a pre- and post-fire camera trap dataset. Additionally, we estimated the density for two naturally marked species, jaguars Panthera onca and ocelots Leopardus pardalis. Of the eight species, six (ocelots, collared peccaries Dicotyles tajacu, giant armadillos Priodontes maximus, Azara's agouti Dasyprocta azarae, red brocket deer Mazama americana, and tapirs Tapirus terrestris) had declining occupancy following fires, and one had stable habitat use (pumas Puma concolor). Giant armadillo experienced the most precipitous decline in occupancy from 0.431 ± 0.171 to 0.077 ± 0.044 after the fires. Jaguars were the only species with increasing habitat use, from 0.393 ± 0.127 to 0.753 ± 0.085. Jaguar density remained stable across years (2.8 ± 1.3, 3.7 ± 1.3, 2.6 ± 0.85/100 km2), while ocelot density increased from 13.9 ± 3.2 to 16.1 ± 5.2/100 km2. However, the low number of both jaguars and ocelots recaptured after the fire period suggests that immigration may have sustained the population. Our results indicate that the megafires will have significant consequences for species occupancy and fitness in fire-affected areas. The scale of megafires may inhibit successful recolonization, thus wider studies are needed to investigate population trends

Trophy hunting: Bans create opening for change.

First paragraph: In their Letter “Trophy hunting bans imperil biodiversity” (30 August, p.874), A. Dickman et al. warn that banning trophy hunting, a practice many of them deem “repugnant,” could threaten African biodiversity and livelihoods. What they actually describe is how loss of funding may impart these effects, without specifying any unique benefits of trophy hunting. It is defeatist to defend business-as-usual instead of promoting alternative conservation activities that could sustain formerly trophy-hunted species and areas.Output Type: Lette