Results 71 to 80 of about 1,881,033 (281)

Camera trap-based estimates reveal spatial variability in African clawless otter population densities and behaviour

Oryx
Estimating the population size of shy and elusive species is challenging but necessary to inform appropriate conservation actions for threatened or declining species. Using camera-trap surveys conducted during 2017–2021, we estimated and compared African
Candice B. Lewis, Tshepiso L. Majelantle, Natalie S. Haussmann, Trevor McIntyre   +3 more
doaj   +1 more source

Testing infrared camera surveys and distance analyses to estimate feral horse abundance in a known population

Wildlife Society Bulletin, 2018
We tested the use of high‐resolution infrared (IR) camera technology and distance sampling analyses to estimate abundance of feral horses (Equus caballus) during 2015–2016 in the McCullough Peaks Herd Management Area, Wyoming, USA. Infrared technology is
Kathryn A. Schoenecker, Paul F. Doherty Jr., Jacob S. Hourt, John P. Romero   +3 more
doaj   +1 more source

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon, Peter T. Gallagher, Orly I. Richter, Neermala Poudel Neupane, Amy C. Mandigo, Jennifer J. McCann, Emanuela Dylgjeri, Irina Vasilevskaya, Christopher McNair, Channing J. Paller, Wm. Kevin Kelly, Karen E. Knudsen, Matthew J. Schiewer, Ayesha A. Shafi   +13 more
wiley   +1 more source

Population Density Estimation of Hornbills in the Eastern Part of Huai Kha Khaeng Wildlife Sanctuary, Thailand

Environment and Natural Resources Journal
Hornbills belong to the Bucerotidae Family, and almost all species within this family are vulnerable to extinction. This study examined the population density of four hornbill species in the eastern part of the rainforest of the Huai Kha Khaeng Wildlife ...
Thanapong Fueakong, Warong Suksavate, Anak Pattanavibool, Pornkamol Jornburom, Kwanchai Waitanyakarn, Apinya Saisamorn, Pannita Neepai, Ronglarp Sukmasuang   +7 more
doaj   +1 more source

Aerial vertical‐looking infrared imagery to evaluate bias of distance sampling techniques for white‐tailed deer

Wildlife Society Bulletin, 2014
Population monitoring requires techniques that produce estimates with low bias and adequate precision. Distance sampling using ground‐based thermal infrared imaging (ground imaging) and spotlight surveys is commonly used to estimate population densities ...
Jared T. Beaver, Craig A. Harper, Robert E. Kissell Jr., Lisa I. Muller, Peyton S. Basinger, Matthew J. Goode, Frank T. Van Manen, Wes Winton, Michael L. Kennedy   +8 more
doaj   +1 more source

The contribution of microlensing surveys to the distance scale

, 1998
In the early nineties several teams started large scale systematic surveys of the Magellanic Clouds and the Galactic Bulge to search for microlensing effects.
A Cousens, A Einstein, A Gould, A Sandage, A Sandage, A Sandage, A Sandage, A Udalski, A Udalski, A Udalski, A Udalski, A Udalski, AA Cole, AN Cox, AR Walker, B Paczyński, B Paczyński, B Paczyński, BF Madore, BW Carney, C Alard, C Alard, C Alcock, C Alcock, C Alcock, C Alcock, C Alcock, C Alcock, C Alcock, C Chiosi, C Chiosi, CA Iglesias, CCEE Clement, CS Kochanek, D Zaritsky, DR Alexander, E Antonello, E Antonello, E Antonello, E Antonello, E Antonello, E Aubourg, E Porretti, F Caputo, G Bono, G Bono, G Bono, G Kovács, G Kovács, GK Andreasen, J Christensen-Dalsgaard, J Harris, J Kaluzny, J Kaluzny, JP Beaulieu, JR Beaulieu, JR Beaulieu, KZ Stanek, KZ Stanek, KZ Stanek, L Baraffe, M Aaronson, M Gehmeyr, M Gehmeyr, M Krockenberger, M Mateo, M Mateo, MJ Pierce, MJ Seaton, MJ Stift, NR Simon, NR Simon, NR Simon, NR Stothers, NR Tanvir, P Fouqué, P Grison, P Moskalik, P Moskalik, PD Sackett, R Buchler, RA Ibata, RC Kennicutt, S Morgan, S Refsdal, Sasselov, Schwarzenberg-Czerny, SM Kambur, TS Albada Van, W Freedman, W Freedman, W Preedman, WL Martin, WP Gieren, Z Kollàth   +94 more
core   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Correcting Waterhole-Driven Population Biases in Arid Ecosystems: A Case Study of Oryx (Oryx gazella)

Diversity
Transect surveys and distance sampling are widely used to estimate wildlife population densities, but these methods can be biased when animals aggregate near features such as waterholes or other resources that occur along survey routes.
Erika P. Swenson, Murray Tindall, Nils Odendaal, Larkin A. Powell   +3 more
doaj   +1 more source

Abundance and density of lesser prairie‐chickens and leks in Texas

Wildlife Society Bulletin, 2013
Lesser prairie‐chickens (LEPCs; Tympanuchus pallidicinctus) have experienced population declines due to both direct and indirect habitat loss, including conversion of native rangeland to cropland and disturbance from energy development.
Jennifer M. Timmer, Matthew J. Butler, Warren B. Ballard, Clint W. Boal, Heather A. Whitlaw   +4 more
doaj   +1 more source

Towards the use of distance sampling to monitorize mountain ungulates numbers. [PDF]

, 2008
Many management actions involving mountain ungulates require unbiased and precise estimations of their numbers. Topography, among other factors, makes difficult the use of direct methods and to assess the effective area sampled. On the other hand, social
Alpizar-Jara, R., Perez, J.M.
core