Results 41 to 50 of about 1,567 (174)

Seasonal Drivers of Density in a Subarctic Population of Northern Red‐Backed Voles

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
In this study, we analyzed 30 years of northern red‐backed vole population data from Denali National Park to examine how environmental factors influenced density over time. We found that this population showed cyclic population fluctuations with a 2–4 year period, with some variation between sampling sites, and that densities were positively associated
Sarah Swanson   +5 more
wiley   +1 more source

Micromechanical modeling of the Compression of the Damaged Zone experiment in the Callovo-Oxfordian formation [PDF]

open access: yesAdvances in Geosciences, 2018
A theoretical model of the Compression of the Damaged Zone experiment is proposed. The tools of micromechanics are used to represent the fractured zone. Assuming an elastic behavior of the sound COx claystone and a simplified geometry of the drift, an
J. Bluthé   +3 more
doaj   +1 more source

From shadows to data: first robust population assessment of snow leopards in Pakistan

open access: yesEcography, Volume 2026, Issue 2, February 2026.
The snow leopard Panthera uncia is a flagship species of the greater Himalayan region and symbolizes the integrity of this ecological system. Within the greater Himalayas, Pakistan holds special significance as the north of the country represents a confluence of three major mountain ranges (Hindu Kush, Pamir–Karakoram, and Himalaya).
Muhammad Ali Nawaz   +9 more
wiley   +1 more source

Social discounting, social costs of carbon, and their use in energy system models

open access: yesEnvironmental Research Letters, 2021
Discounting plays a large role in cost-optimization models, but is nevertheless often only covered in little detail in energy system models. The aim of this paper is to highlight the effects of varying discount rates and social costs of carbon in energy ...
Konstantin Löffler
doaj   +1 more source

Balancing benefits and burdens: Tourist camps and lion conservation in the Maasai Mara

open access: yesConservation Science and Practice, Volume 8, Issue 2, February 2026.
Wildlife tourism supports conservation and economies, but its rapid expansion can negatively impact ecosystems. Using spatially explicit lion density data from the Maasai Mara (2014–2022), we found that higher densities of tourist camps significantly reduce lion presence, independent of prey or vegetation, and that newly established camps displace ...
Niels Mogensen   +4 more
wiley   +1 more source

Structure and dynamics of the active Gs-coupled human secretin receptor

open access: yesNature Communications, 2020
The class B secretin GPCR (SecR) has broad physiological effects, with target potential for treatment of metabolic and cardiovascular disease. Here, authors present a cryo-EM structure and biochemical studies of secretin binding to the SecR:Gs complex ...
Maoqing Dong   +14 more
doaj   +1 more source

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

open access: yesPopulation Ecology, Volume 68, Issue 1, January 2026.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa   +2 more
wiley   +1 more source

Population status of leopard in one of Africa's largest wilderness areas and the challenge of monitoring at scale

open access: yesEcological Solutions and Evidence, Volume 7, Issue 1, January–March 2026.
This study uses spatially explicit capture–recapture modelling of camera trap data to shed light on the status of leopard in Tanzania's Selous–Nyerere ecosystem, one of the largest remaining wilderness areas in Africa. The results highlight the ecosystem as a leopard stronghold, with population densities ranging from 3.80 (±0.64) to 8.08 (±1.54) adult ...
Charlotte E. Searle   +11 more
wiley   +1 more source

Red deer adult sex ratio: comparing three approaches using camera trap data

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 1, January 2026.
A naïve estimate of the adult sex ratio in red deer (Cervus elaphus) using raw camera trap data showed no bias when compared to more advanced statistical methods that account for detection probabilities or predict the sex of unknown sightings. Abstract European forests face severe challenges due to climate change, highlighting the importance of tree ...
Stephanie Wohlfahrt   +3 more
wiley   +1 more source

Counting Cats: Spatially Explicit Population Estimates of Cheetah (Acinonyx jubatus) Using Unstructured Sampling Data.

open access: yesPLoS ONE, 2016
Many ecological theories and species conservation programmes rely on accurate estimates of population density. Accurate density estimation, especially for species facing rapid declines, requires the application of rigorous field and analytical methods ...
Femke Broekhuis, Arjun M Gopalaswamy
doaj   +1 more source

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