Distance-based Criteria to Identify Minimum Number of Brown Bear Females with Cubs in Europe
作者： Andres Ordiz , Carlos Rodríguez , Javier Naves , Alberto Fernandez , Djuro Huber
DOI: 10.2192/1537-6176(2007)18[158:DCTIMN]2.0.CO;2
关键词: Percentile 、 Identification criteria 、 Statistics 、 Ecology 、 Ursus 、 Distance based 、 Geography
摘要: Abstract Counts of females with cubs-of-the-year (FWC) have been used as an index for monitoring brown bear (Ursus arctos) populations or estimating a minimum number adult in several small and medium-sized populations. Because discriminating among family groups is crucial to this procedure, we sought improve criteria differentiate FWC using spatial temporal distances between sightings. We telemetry data from 11 southern central Europe 15 Sweden determine the likelihood that observations were same based on distance moved elapsed time period. Euclidean traveled by each estimated daily. then calculated straight-line intervals 1–180 days, maximum available. obtained values (highest percentiles) over FWC. considered 2 periods activity: early spring, first after denning until 30 June, t...
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irb.hr 参考文章(35)
José Luis Tellería Jorge, Manual para el censo de los vertebrados terrestres ,(1986)
Simonetta Chiozzini, Andrea Mustoni, Damiano Preatoni, Edoardo Lattuada, Eugenio Carlini, Piero Genovesi, Adriano Martinoli, Guido Tosi, Barbara Chiarenzi, Eugenio Dupré, Luc Wauters, Luca Pedrotti, Planning the Brown Bear Ursus arctos reintroduction in the Adamello Brenta Natural Park. A tool to establish a metapopulation in the Central-Eastern Alps Hystrix-italian Journal of Mammalogy. ,vol. 14, ,(2003) , 10.4404/HYSTRIX-14.1-2-4313
G. C. White, W. B. Ballard, R. R. Nelson, C. C. Schwartz, R. B. Smith, H. V. Reynolds, V. G. Barnes, K. Titus, S. D. Miller, R. A. Sellers, J. W. Schoen, Brown and black bear density estimation in Alaska using radiotelemetry and replicated mark-resight techniques Wildlife Monographs. pp. 1- 55 ,(1997)
Athanasios Tragos, Olga Nikolaou, Isaak Ioannis, Suzanne Riegler, Armin Riegler, Yorgos Mertzanis, Avraam Mavridis, Movements, activity patterns and home range of a female brown bear (Ursus arctos, L.) in the Rodopi Mountain Range, Greece Belgian Journal of Zoology. ,vol. 135, pp. 217- 221 ,(2005)
M.A. Haroldson, K.A. Keating, D. Moody, C.C. Schwartz, Estimating the number of females with cubs-of-the-year in the Yellowstone grizzly bear population Ursus. ,vol. 13, pp. 161- 174 ,(2001)
R. R. Knight, L. L. Eberhardt, Projected future abundance of the Yellowstone grizzly bear Journal of Wildlife Management. ,vol. 48, pp. 1434- 1438 ,(1984) , 10.2307/3801814
Bonnie M. Blanchard, Richard R. Knight, Movements of Yellowstone grizzly bears Biological Conservation. ,vol. 58, pp. 41- 67 ,(1991) , 10.1016/0006-3207(91)90044-A
Richard D. Mace, John S. Waller, Spatial and temporal interaction of male and female grizzly bears in northwestern Montana Journal of Wildlife Management. ,vol. 61, pp. 39- 52 ,(1997) , 10.2307/3802412
Petra Kaczensky, Felix Knauer, Blaz Krze, Marco Jonozovic, Miha Adamic, Hartmut Gossow, The impact of high speed, high volume traffic axes on brown bears in Slovenia Biological Conservation. ,vol. 111, pp. 191- 204 ,(2003) , 10.1016/S0006-3207(02)00273-2
James Pritchard, John J. Craighead, Jay S. Sumner, John A. Mitchell, The grizzly bears of Yellowstone: their ecology in the Yellowstone ecosystem, 1959-1992 Environmental History. ,vol. 2, pp. 102- 103 ,(1997) , 10.2307/3985568