Results 141 to 150 of about 29,019 (229)

Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain

Wildlife Biology, EarlyView.
Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund, Torbjørn Ergon, Simon Filhol, Atle Mysterud   +3 more
wiley   +1 more source

Low levels of sibship encourage use of larvae in western Atlantic bluefin tuna abundance estimation by close-kin mark-recapture. [PDF]

Sci Rep, 2022
McDowell JR, Bravington M, Grewe PM, Lauretta M, Walter JF, Baylis SM, Gosselin T, Malca E, Gerard T, Shiroza A, Lamkin JT, Biesack EE, Zapfe G, Ingram W, Davies C, Porch C.   +15 more
europepmc   +1 more source

Abundance and occupancy trends of sooty grouse in western Oregon: determining best modeling practices by comparing observed and simulated data

Wildlife Biology, EarlyView.
Sooty grouse Dendragapus fuliginosus are large game birds that occupy montane forests in the Pacific Northwest, USA. These forests have been altered by human activities, which have been shown to have both positive and negative impacts on local populations.
Sarah J. K. Frey, Kelly M. Walton, Mikal L. Cline, Lindsey E. Sanders, Jonathan B. Dinkins   +4 more
wiley   +1 more source

Phenology of migrating game birds in Italy based on citizen science data

Wildlife Biology, EarlyView.
Studying the timing of the seasonal movements of migratory birds, known as migration phenology, is crucial for managing and conserving migratory bird populations. This is particularly important for migratory game bird populations in Europe because, according to the EU, migratory birds should not be hunted during their breeding season or during return ...
Susan E. McKinlay, Alessandra Costanzo, Claudio Celada, Marco Gustin, Alessandro Andreotti, Lorenzo Serra, Simona Imperio, Stephen Baillie, Franz Bairlein, Fernando Spina, Roberto Ambrosini   +10 more
wiley   +1 more source

Considering sampling bias in close-kin mark-recapture abundance estimates of Atlantic salmon. [PDF]

Ecol Evol, 2021
Wacker S, Skaug HJ, Forseth T, Solem Ø, Ulvan EM, Fiske P, Karlsson S.   +6 more
europepmc   +1 more source

Experimental assessment of large mammal population estimates from airborne thermal videography

Wildlife Biology, EarlyView.
Wildlife resource management requires reliable, fast, and affordable methods of surveying wildlife populations to develop and adaptively adjust policies. Thermal video from drones can yield high rates of detection over large areas with relative speed and safety.
Julia S. McElhinny, Gregory D. Larsen, Maxwell Messinger, Chad H. Newbolt, Andrew Whitworth, Stephen S. Ditchkoff, Miles R. Silman, Jared T. Beaver   +7 more
wiley   +1 more source

Pairing automated mark-recapture and social network models to explore the effects of landscape configuration on hummingbird foraging patterns. [PDF]

Biol Lett, 2021
Gannon DG, Hadley AS, Frey SJK.
europepmc   +1 more source

Born to die: pack and population level estimates of wolf pup survival and recruitment in the Greater Voyageurs Ecosystem

Wildlife Biology, EarlyView.
Wolf pup Canis lupus survival is a key driver of wolf population dynamics that remains poorly understood, especially in forested systems, because wolf pups are difficult to monitor. We used a combination of pup counts at dens and remote camera observations to estimate annual survival and recruitment of wolf pups in the Greater Voyageurs Ecosystem, MN ...
Andrea Hynes, Thomas D. Gable, Austin T. Homkes, Joseph K. Bump, John G. Bruggink   +4 more
wiley   +1 more source

Both forest cover and land management practices explain variation in recovering pine marten densities

Wildlife Biology, EarlyView.
Robust monitoring of wildlife populations to guide interventions is fundamental to conservation and wildlife management. Understanding how landscape characteristics are influencing predator population dynamics is often vital to inform recovery strategies, management, and policy. The pine marten Martes martes is recovering in the UK; however, population
Keziah J. Hobson, Chris Sutherland, Cristian Navarro Waggershauser, Deborah A. Dawson, Gavin J. Horsburgh, Lucy S. Knowles, Xavier Lambin   +6 more
wiley   +1 more source

Pickin' up good vibrations: a systematic review of footfall detection and analysis in the realm of wildlife surveying

Wildlife Biology, EarlyView.
Exploration of new wildlife surveying methodologies that leverage advances in sensor technology and machine learning has led to tentative research into the application of seismology techniques. This, most commonly, involves the deployment of a footfall trap – a seismic sensor and data logger customised for wildlife footfall.
Benjamin J. Blackledge, Luigi La Spada, Robert A. Briers, Niamh M. McHugh, Patrick J. C. White   +4 more
wiley   +1 more source