Monitoramento de longo prazo em florestas de várzea na Amazônia com gestão de base comunitária revela algumas das maiores densidades de onças-pintadas do mundo

O monitoramento de longo prazo mostra que as florestas alagáveis amazônicas (várzea) podem sustentar altas densidades de onças-pintadas, mas a aparente estabilidade pode mascarar um declínio populacional subjacente, destacando a necessidade de esforços contínuos de conservação diante do aumento de eventos climáticos extremos. As onças-pintadas são o maior felino das Américas e desempenham um papel fundamental na manutenção do funcionamento dos ecossistemas. Em grande parte … Continue reading Monitoramento de longo prazo em florestas de várzea na Amazônia com gestão de base comunitária revela algumas das maiores densidades de onças-pintadas do mundo

Long-term monitoring in community-managed Amazonian floodplains reveals some of the world’s highest jaguar densities

Long-term monitoring shows that Amazonian floodplain forests (várzea) can support high jaguar densities, but apparent stability may mask underlying population decline, highlighting the need for sustained conservation efforts under increasing climate extremes. Jaguars are the largest felid in the Americas and play a key role in maintaining ecosystem function. Across much of their range, populations have declined due to habitat loss, hunting, and human–wildlife conflict. … Continue reading Long-term monitoring in community-managed Amazonian floodplains reveals some of the world’s highest jaguar densities

Less people leads to the return of large mammals

Some areas of the world – particularly rural areas – now have less people than they used to. In this Perspective, we: Although the human populations of many countries around the world are still growing, we are only 60-70 years away from a world with a shrinking total population. Understanding how biodiversity responds to a shrinking human population will be critical in the coming years. … Continue reading Less people leads to the return of large mammals

Field Diaries: Mariana Silva Ferriera

In our ‘Field Diaries’ series, The Applied Ecologist is sharing stories from a range of different fieldwork experiences. Mariana Silva Ferreira shares being involved in the largest long-term monitoring study on small mammals based in Brazil. About the Author Mariana Silva Ferreira, she/her Affiliation: Ecology interests: Population ecology, life histories, mammals Overview of fieldwork For over 10 years, I was part of the team at the Vertebrate … Continue reading Field Diaries: Mariana Silva Ferriera

Grizzly bears and wolves avoid busy hiking trails more than previously thought

Peter Thompson explains how, alongside colleagues, the spatial distribution and interactions of grizzly bears (Ursus arctos), grey wolves (Canis lupus), and humans within the central Canadian Rocky Mountains were monitored and assessed in their latest study. Human recreation and wildlife The Bow River Valley in Alberta, Canada is a global hotspot for outdoor recreation, attracting millions of visitors annually to enjoy the spectacular landscapes of … Continue reading Grizzly bears and wolves avoid busy hiking trails more than previously thought

Keeping our havened populations fighting fit: Do native predators help Australian mammals face invasive cats and foxes?

Linking to the recently-published article, Natasha Harrison discusses whether native predators inside ‘predator-free’ havens could be good for the conservation of threatened native prey species. Predator-free havens Since their introduction into the Australian landscape following European settlement, feral cats and red foxes have caused prolific population declines among our native fauna. The extinction of Australian mammals makes up more than two thirds of contemporary global … Continue reading Keeping our havened populations fighting fit: Do native predators help Australian mammals face invasive cats and foxes?

Forestry raises the predation risk to caribou – we found ways to reduce it

Tracy McKay and Laura Finnegan share their latest research investigating what affects ungulate occurrence  in forest harvest blocks in west-central Alberta, Canada. Five years ago, our research group developed an idea with forest companies to help conserve woodland caribou – Rangifer tarandus, the same species as the Eurasian reindeer – in western Canada. Summer after summer, our crews drove the mud and gravel roads spiderwebbing … Continue reading Forestry raises the predation risk to caribou – we found ways to reduce it

MammalWeb: The potential of citizen science for large-scale mammal monitoring

Feature photo: A camera trap photo © MammalWeb (CC BY-SA 2.0) In their latest article, Pen-Yuan Hsing et al. describe the processes involved in launching and running MammalWeb – a successful camera trapping project that has produced over 440,00 classified image sequences and videos over the past decade. It is unlikely to come as a shock to readers of the Applied Ecologist that the world … Continue reading MammalWeb: The potential of citizen science for large-scale mammal monitoring

Editor’s Choice 57:11 – An integrated approach using passive acoustic monitors and camera traps to measure hunting activity and its impacts on mammalian populations

Associate Editor, Sharif A. Mukul, introduces the November Editor’s Choice paper, which demonstrates that acoustic monitoring technologies detect far more instances of hunting than camera traps. Unsustainable hunting is one of the major challenges to wildlife and healthy forests worldwide. While subsistence hunting is widespread in many parts of the tropics, over-hunting can have a detrimental effect on wildlife populations, particularly mammals. In recent years, … Continue reading Editor’s Choice 57:11 – An integrated approach using passive acoustic monitors and camera traps to measure hunting activity and its impacts on mammalian populations

Fishing for mammals: using environmental DNA from rivers to monitor mammals on land

New research by Sales and colleagues looks at the monitoring of terrestrial mammal communities and compares the efficacy of landscape-level monitoring using environmental DNA (eDNA) to that of conventional methods. Here the authors summarise their findings. Accurately and effectively monitoring biodiversity is a key consideration in this rapidly changing world. Consistent and regular monitoring of species communities is pivotal for ongoing management, conservation and policy … Continue reading Fishing for mammals: using environmental DNA from rivers to monitor mammals on land