Results 181 to 190 of about 3,260,677 (239)

Consequences of severe habitat fragmentation on density, genetics, and spatial capture-recapture analysis of a small bear population. [PDF]

PLoS One, 2017
Murphy SM, Augustine BC, Ulrey WA, Guthrie JM, Scheick BK, McCown JW, Cox JJ.   +6 more
europepmc   +1 more source

Microbiome Dynamics During Translocation of the Critically Endangered Frog Craugastor ranoides

Animal Conservation, EarlyView.
A female Craugastor ranoides fitted with an LB‐2X radio transmitter using a silicone waist‐belt harness for post‐translocation monitoring. ABSTRACT Amphibian populations are declining, and species are going extinct due to habitat loss, climate change, and emerging infectious disease, prompting the increasing use of translocations as a conservation tool.
Xavier A. Harrison, Katherine Herborn, Gilbert Alvarado, María Marta Chavarría, Kirsty J. Marsh, Alexander D.M. Wilson, Alexandra C. North, Victoria E. P. Wakeham, Roberto Fernández, Héctor Zumbado‐Ulate, Jon Bielby, Robert Puschendorf   +11 more
wiley   +1 more source

Human Recreation and Fire History Shape Landscape Connectivity for an Endangered Forest Carnivore

Animal Conservation, EarlyView.
Roads and trails can impede wildlife movement, but their permeability varies with human use and fire history. We combined GPS telemetry from 45 endangered southern Sierra Nevada fishers (Pekania pennanti) with smartphone‐derived human mobility data to estimate crossing probability across road and trail segments. Fishers were about 2.5 times more likely
Mark A. Ditmer, Maksim Sergeyev, Helen E. Chmura, Jody M. Tucker, Gavin M. Jones, Kari E. Norman, Ronan B. Hart, Michael K. Schwartz, Andria M. Townsend, Rebecca E. Green, Sarah L. Stock, George Wittemyer   +11 more
wiley   +1 more source

Running towards: Labour market incentives for runaway slaves in the British Cape Colony, 1830–1838

Asia‐Pacific Economic History Review, EarlyView.
Abstract Recent scholarship on slave escapes has increasingly emphasised economic motivation, but few studies have empirically investigated how market incentives influenced the decision‐making of enslaved individuals during transitions from coerced to wage labour.
Karl Bergemann, Gabriel Brown, Johan Fourie   +2 more
wiley   +1 more source

Climatic factors, landscape composition and host plant traits co‐drive fruit infestation of unmanaged walnut trees by the invasive pest fly Rhagoletis completa (Cresson, 1929) (Diptera: Tephritidae)

Agricultural and Forest Entomology, EarlyView.
The study examined multiscale factors influencing walnut fruit infestations by the invasive pest fly Rhagoletis completa. Infestation rates increased with fruit size, host tree abundance, grasslands, hedgerows and temperatures, but decreased with anthropogenic habitats and heavy spring rainfall.
Méghan Boulembert, Wendy Destierdt, Aude Couty, Emilie Gallet‐Moron, Patrice Eslin, Olivier Chabrerie   +5 more
wiley   +1 more source

Without Scratching the Surface: Depth Profiling Compositional Muon Analysis of Ancient Faience From Egypt and Sudan

Archaeometry, EarlyView.
ABSTRACT The specific depth‐profiling capabilities of the muonic x‐ray emission spectroscopy (μ‐XES) technique have proved to be effective for examination of the elemental distribution within ancient coins. This ‘layered’ analysis can also be applied to the examination of ancient faience, the production of which can result in distinct layers (glaze ...
Juliet V. Spedding, Sayani Biswas, Adrian D. Hillier   +2 more
wiley   +1 more source

A nonlinear association between chronic stress and instrumental reward learning under Pavlovian conflict: Behavioural and computational evidence

British Journal of Psychology, EarlyView.
Abstract Chronic stress, arising from prolonged exposure to unpredictable challenges, is common in everyday life and may alter cognitive processes. However, few human studies have empirically examined the association between chronic stress and reward learning, which is critical for navigating uncertain environments.
Lu Liu, Yi‐Xu Pang, Zhi‐Yuan Cai, Chang‐Hong Ma, Ying Zhang, Li‐Jing Niu, Yuan‐Wei Yao, Xiao‐Yi Fang   +7 more
wiley   +1 more source

Extreme site fidelity in long‐distance migratory shorebirds in Australia and potential implications for conservation

Conservation Biology, EarlyView.
Abstract Site fidelity is the tendency for animals to repeatedly return to the same locations, either within or between years. Site fidelity enables animals to utilize knowledge of previously visited locations, including assessments of seasonal variations in health and mortality risks (e.g., predation), resource availability, and social benefits such ...
Tobias A. Ross, Australasian Wader Studies Group, Victorian Wader Study Group, Queensland Wader Study Group, Robyn Atkinson, Maureen Christie, Danny I. Rogers, Chris Hassell, Roz Jessop, Jonathan T. Coleman, Theunis Piersma, Sara Ryding, Aaron Spence, Marcel Klaassen   +13 more
wiley   +1 more source

Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon

Conservation Biology, EarlyView.
Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch, Joseph H. Anderson, Eric M. Beamer, Joshua W. Chamberlin, Christopher Ellings, Correigh M. Greene, Sayre Hodgson, Michael T. LeMoine, W. Todd Zackey   +8 more
wiley   +1 more source

Integrating migratory connectivity data into the conservation of Australian sharks and rays

Conservation Biology, EarlyView.
Abstract Understanding migratory connectivity is important for conserving highly mobile marine species facing escalating threats. Establishing baseline information on migratory connectivity is necessary for identifying species and regions requiring transboundary cooperation for their conservation.
Diego F. Bezerra, Lily K. Bentley, Ross G. Dwyer, Dina Nisthar, Anthony J. Richardson, Colin A. Simpfendorfer, Michelle R. Heupel, Christoph A. Rohner, Simon J. Pierce, Daniel C. Dunn   +9 more
wiley   +1 more source