Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Sam M Ferreira"'
Autor:
Nikki le Roex, Sam M Ferreira
Publikováno v:
PLoS ONE, Vol 15, Iss 7, p e0236790 (2020)
Overharvesting affects the size and growth of wildlife populations and can impact population trajectories. Overharvesting can also severely alter population structure and may result in changes in spatial organisation, social dynamics and recruitment.
Externí odkaz:
https://doaj.org/article/b31860252868427ca39181b56b8f2c14
Publikováno v:
PLoS ONE, Vol 14, Iss 1, p e0209678 (2019)
Unrelenting poaching to feed the illegal trafficking of rhinoceros (rhino) horn remains the principle threat to the persistence of south-central black and southern white rhino that live in the Kruger National Park (Kruger), South Africa. Other global
Externí odkaz:
https://doaj.org/article/4a33d1f1c26c42a98b268a94725112b2
Publikováno v:
Koedoe: African Protected Area Conservation and Science, Vol 66, Iss 1, Pp e1-e9 (2024)
Species typically occupy fewer sites, and average population densities decline from the centre to the edge of a species’ range when the range contracts. The poaching of rhinoceroses (rhinos) for their horn has degraded the black and white rhino pop
Externí odkaz:
https://doaj.org/article/610da791cc8b465eb32840243b40ca4c
Autor:
Timothy C Haas, Sam M Ferreira
Publikováno v:
PLoS ONE, Vol 11, Iss 11, p e0167040 (2016)
The onslaught on the World's wildlife continues despite numerous initiatives aimed at curbing it. We build a model that integrates rhino horn trade with rhino population dynamics in order to evaluate the impact of various management policies on rhino
Externí odkaz:
https://doaj.org/article/0dcb8398d1604043babc643b9348d71b
Publikováno v:
PLoS ONE, Vol 10, Iss 6, p e0127783 (2015)
The onslaught on the World's rhinoceroses continues despite numerous initiatives aimed at curbing it. When losses due to poaching exceed birth rates, declining rhino populations result. We used previously published estimates and growth rates for blac
Externí odkaz:
https://doaj.org/article/23e8a95210ac4217af57b79a6cb44555
Autor:
Kelly Marnewick, Sam M Ferreira, Sophie Grange, Jessica Watermeyer, Nakedi Maputla, Harriet T Davies-Mostert
Publikováno v:
PLoS ONE, Vol 9, Iss 1, p e86265 (2014)
The Kruger National Park is a stronghold for African wild dog Lycaon pictus and cheetah Acinonyx jubatus conservation in South Africa. Tourist photographic surveys have been used to evaluate the minimum number of wild dogs and cheetahs alive over the
Externí odkaz:
https://doaj.org/article/3649c1046e674dfba6090eb9ddfedfeb
Publikováno v:
PLoS ONE, Vol 7, Iss 9, p e45989 (2012)
White rhinoceros (rhinos) is a keystone conservation species and also provides revenue for protection agencies. Restoring or mimicking the outcomes of impeded ecological processes allows reconciliation of biodiversity and financial objectives. We eva
Externí odkaz:
https://doaj.org/article/ce5bb10a750a4d06b6fe5727d09a2825
Autor:
Morgan J Trimble, Rudi J van Aarde, Sam M Ferreira, Camilla F Nørgaard, Johan Fourie, Phyllis C Lee, Cynthia J Moss
Publikováno v:
PLoS ONE, Vol 6, Iss 10, p e26614 (2011)
Determining the age of individuals in a population can lead to a better understanding of population dynamics through age structure analysis and estimation of age-specific fecundity and survival rates. Shoulder height has been used to accurately assig
Externí odkaz:
https://doaj.org/article/204edd08433c4d53b3b97616f830baa5
Publikováno v:
Ecological Solutions and Evidence, Vol 3, Iss 2, Pp n/a-n/a (2022)
Abstract African lion (Panthera leo) populations normally consist of several neighbouring prides and multiple adult males or groups of males that interact competitively. In large, open systems, cub defence from infanticidal males and territory defenc
Externí odkaz:
https://doaj.org/article/73bd1da3fb674673842e9b2cb8b0bc28
Autor:
Vilis O. Nams, Dan M. Parker, Florian J. Weise, Bruce D. Patterson, Ralph Buij, Frans G. T. Radloff, Abi Tamim Vanak, Pricelia N. Tumenta, Matt W. Hayward, Lourens H. Swanepoel, Paul J. Funston, Hans Bauer, R. John Power, John O'Brien, Timothy G. O'Brien, Craig J. Tambling, Hans H. de Iongh, Sam M. Ferreira, Norman Owen‐Smith, James W. Cain, Julien Fattebert, Barbara M. Croes, Goran Spong, Andrew J. Loveridge, Ann Marie Houser, Krystyna A. Golabek, Colleen M. Begg, Tanith Grant, Paul Trethowan, Charles Musyoki, Vera Menges, Scott Creel, Guy A. Balme, Ross T. Pitman, Charlene Bissett, David Jenny, Paul Schuette, Christopher C. Wilmers, Luke T. B. Hunter, Margaret F. Kinnaird, Keith S. Begg, Cailey R. Owen, Villiers Steyn, Dirk Bockmuehl, Stuart J. Munro, Gareth K. H. Mann, Byron D. du Preez, Laurie L. Marker, Tuqa J. Huqa, Gabriele Cozzi, Laurence G. Frank, Phumuzile Nyoni, Andrew B. Stein, Samuel M. Kasiki, David W. Macdonald, Quinton E. Martins, Rudie J. van Vuuren, Ken J. Stratford, Laura R. Bidner, Alayne Oriol‐Cotteril, Nakedi W. Maputla, Nkabeng Maruping‐Mzileni, Tim Parker, Maarten van't Zelfde, Lynne A. Isbell, Otto B. Beukes, Maya Beukes
Publikováno v:
Mammal Review
Mammal Review, 53(2), 49-64
Mammal Review 53 (2023) 2
Mammal Review, 53(2), 49-64
Mammal Review 53 (2023) 2
Spatial patterns of and competition for resources by territorial carnivores are typically explained by two hypotheses: 1) the territorial defence hypothesis and 2) the searching efficiency hypothesis. According to the territorial defence hypothesis,