A5024193558- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Primate Behavior and Ecology
- Ecology and Vegetation Dynamics Studies
- Wildlife-Road Interactions and Conservation
- Animal Ecology and Behavior Studies
- Environmental DNA in Biodiversity Studies
- Plant and animal studies
- Animal Behavior and Welfare Studies
- Bat Biology and Ecology Studies
- Peatlands and Wetlands Ecology
- Genetic diversity and population structure
- Evolution and Paleontology Studies
- Genetic and phenotypic traits in livestock
- Fire effects on ecosystems
- Rangeland and Wildlife Management
- Coastal wetland ecosystem dynamics
- Amphibian and Reptile Biology
- Zoonotic diseases and public health
- Protist diversity and phylogeny
- Microbial Community Ecology and Physiology
- Identification and Quantification in Food
- Forest Management and Policy
- Soil erosion and sediment transport
- Animal Behavior and Reproduction
San Diego Zoo Institute for Conservation Research
2016-2025
Zoological Society of San Diego
2015-2024
Digital Research Alliance of Canada
2021-2024
Botanical Research Institute of Texas
2006-2013
Amazon (United States)
2009-2013
Texas A&M University
2006-2009
École Polytechnique Fédérale de Lausanne
2003
Centro Agronomico Tropical de Investigacion y Ensenanza Catie
2002
Abstract Mammal inventories in tropical forests are often difficult to carry out, and many elusive species missed or only reported from interviews with local people. Camera traps offer a new tool for conducting of large‐ medium‐sized terrestrial mammals. We evaluated the efficiency camera based on data two surveys carried out at single site during 2 consecutive years. The survey efforts were 1440 2340 days, 75 86% 28 mammal known occur recorded. Capture frequencies different highly...
1. Monitoring the response of wild mammal populations to threatening processes is fundamental effective conservation management. This especially true for infectious diseases, which may have dynamic and therefore unpredictable interactions with their host. 2. We investigate long-term impact a transmissible cancer, devil facial tumour disease (DFTD), on endemic Tasmanian devil. analyse trends in spot-light counts density across area impacted by disease. demographic parameters might be driving...
Summary Over the last two decades, a large number of camera trap surveys have been carried out around world and traps proposed as an ideal tool for inventorying monitoring medium to large‐sized terrestrial vertebrates. However, few studies analysed data at community level. We developed multi‐session multi‐species occupancy model that allows us obtain estimates species richness combining from multiple (sessions). By estimating presence session‐level modelling detection probability each...
Abstract: We studied the habitat use, activity patterns and use of mineral licks by five species Amazonian ungulate using data from four 60-d camera trap surveys at two different sites in lowland rain forest Madre de Dios, Peru. Camera traps were set out regular grids with 40 43 stations covering an area 50 65 km 2 , as well licks. Using occupancy analysis we tested hypothesis that are spatially separated. The results showed grey brocket deer ( Mazama gouazoubira ) occurred almost...
Spatiotemporal patterns in biological communities are typically driven by environmental factors and species interactions. Spatial data from naturally described stacking models for all the community. Two important considerations such multispecies or joint distribution (JSDMs) measurement errors correlations between species. Up to now, virtually JSDMs have included either one other, but not both features simultaneously, even though may be essential achieving unbiased inferences about of...
Abstract Large and medium‐bodied rainforest canopy mammals are typically surveyed using line transects, but these labour intensive usually ignore nocturnal species. Camera traps have become the preferred tool for assessing terrestrial mammal communities, rarely been used arboreal Here, we compare efficiency of camera trapping with transects inventorying medium large‐sized mammals, assess viability in trees to model habitat occupancy. We installed 42 traps, spaced 2 km apart, Maijuna‐Kichwa...
Innovative techniques, such as environmental DNA (eDNA) metabarcoding, are now promoting broader biodiversity monitoring at unprecedented scales, because of the reduction in time, presumably lower cost, and methodological efficiency. Our goal was to assess efficiency established inventory techniques (live-trapping grids, pitfall traps, camera trapping, mist netting) well eDNA for detecting Amazonian mammals. For terrestrial small mammals, we used 32 live-trapping grids based on Sherman...
Abstract Arboreal camera trapping is a burgeoning method providing novel and effective technique to answer research questions across variety of ecosystems, it has the capacity improve our understanding wide range taxa. However, while terrestrial received much attention, there little guidance for dealing with unique challenges working in arboreal realm. Our review draws on expertise researchers from six continents broader literature investigate advantages disadvantages trapping, consider when...
Summary The success of large‐scale cattle ranching in African savanna vegetation has often been limited by problems bush encroachment and disease (in particular trypanosomiasis spread tsetse flies). Mkwaja Ranch, occupying an area 462 km 2 on the coast Tanzania, is a recent example large enterprise that failed within environment. It was closed 2000 after 48 years operation. In this paper we describe main types (excluding forest vegetation) relate their patterns distribution to former use...
Abstract Aim Community‐level assessments of how biodiversity responds to disturbance within forest habitats are often biased towards terrestrial‐based surveys. However, recent research suggests that arboreal communities several indicator groups (ants, amphibians, beetles and butterflies) more susceptible human than their terrestrial counterparts, but what about wildlife at higher trophic levels? We assess responses disturbance, from floor canopy, a key conservation flagship group: medium...
ABSTRACT The lowland tapir Tapirus terrestris is the largest herbivore in Neotropics and feeds on a large quantity of fruits, often ingesting seeds defecating them intact. Seed dispersal by southwestern Amazon was studied examining from 135 dung samples collected between 2005 2007. Seeds total 122 plant species were identified, representing 68 genera 33 families. accumulation curve showed that more can be expected with further sampling. Many (45%) only encountered once, 10 percent all found...
Abstract The continuing development of improved capture–recapture (CR) modeling techniques used to study apex predators has also limited robust temporal and cross-site analyses due different methods employed. We develop an approach standardize older non-spatial CR newer spatial density estimates examine trends for critically endangered Sumatran tigers ( Panthera tigris sumatrae ) using a meta-regression 17 existing densities new from our own fieldwork. find that tiger were 47% higher in...
ABSTRACT Aim The long‐term survival of many mammal populations relies on how effectively we mitigate the threat from unsustainable hunting. Yet, hunting activities are often cryptic, especially in unprotected forests. Here, investigate whether signs can help understand spatiotemporal dynamics an African rainforest and examine landscape characteristics predict various indicators Location Ebo forest, Cameroon, Central Africa. Methods We recorded (e.g., shotgun cartridges, wire snares, direct...
Abstract Alluvial sediments bordering rivers of the southern Peruvian Amazon are enriched with gold, which has sustained an artisanal gold mining economy within a biodiversity hotspot for past several decades. While it is clear that sweeping deforestation by miners resulted in substantial loss above-ground carbon stocks and increased greenhouse emissions, region also harbors sizable below-ground stock form peatlands, how these have fared against decades expansion uncertain. Here, we use...