Zobrazeno 1 - 10
of 250
pro vyhledávání: '"M.R. Perrin"'
Publikováno v:
Koedoe: African Protected Area Conservation and Science, Vol 43, Iss 2, Pp 35-46 (2000)
Data on the nesting behaviour of Crocodylus niloticus along the Olifants River in the Kruger National Park were collected over a period of six years (1993 to 1998). A total of 165 nests were investigated for soil type, exposure to sunlight, distance
Externí odkaz:
https://doaj.org/article/f74ed28eda4e4d3080b41dae67a1f83c
Autor:
L.J. Fourie, M.R. Perrin
Publikováno v:
Koedoe: African Protected Area Conservation and Science, Vol 28, Iss 1, Pp 61-67 (1985)
Changes in the body fat content of the hyrax Procavia capensis were used as an indicator of physiological condition. Body fat rankings for the different sexes showed seasonal variations related to physiologically stressful periods (rutting, gestation
Externí odkaz:
https://doaj.org/article/0775d1a986eb456192cb408a46aa71f4
Autor:
B.S. Campbell, M.R. Perrin
Publikováno v:
African Zoology; Vol 16, No 1 (1981); 35-43
Behavioural and physiological thermoregulation were studied in Chersina angulata, Homopus areolatus and Geochelone pardalis. Results on behavioural thermoregulation (response to thermal gradient) suggest it to be of greatest significance in H. areola
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad0eef7165c43b86da053b18c598ec9f
https://www.ajol.info/index.php/az/article/view/152247
https://www.ajol.info/index.php/az/article/view/152247
Autor:
M.R. Perrin, Edith R. Dempster
Publikováno v:
Ethology. 83:326-334
Staged 10-min encounters between male and female gerbils of the same species were characterized by high levels of exploratory and solitary behaviour, variable levels of agonistic behaviour, and little contact-promoting behaviour. Female Gerbillurus p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc92d7ef70aa05b3f37cb2686baef83e
https://doi.org/10.1111/j.1439-0310.1989.tb00540.x
https://doi.org/10.1111/j.1439-0310.1989.tb00540.x
Autor:
Burt P. Kotler, M.R. Perrin
Publikováno v:
African Zoology. 40:55-61
The operation of five different mechanisms of species coexistence in a community of rodents was examined in a semi-arid Kalahari savanna in southern Africa. The two most common species were Tatera leucogasterl/Ig (bushveld gerbil) and Rhabdomys pumil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54faf85c964c8d9e5d1159656ab9cc70
https://doi.org/10.1080/15627020.2005.11407309
https://doi.org/10.1080/15627020.2005.11407309
Autor:
Louise Warburton, Livio Heath, Anna-Lise Williamson, Chris Kingsley, M.R. Perrin, William Horsfield, Darren P. Martin, Edward P. Rybicki
Publikováno v:
Journal of Virology. 78:9277-9284
Psittacine beak and feather disease (PBFD), caused by Beak and feather disease virus (BFDV), is the most significant infectious disease in psittacines. PBFD is thought to have originated in Australia but is now found worldwide; in Africa, it threaten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df16d0d604fa32097f46b6e862ed054e
https://doi.org/10.1128/jvi.78.17.9277-9284.2004
https://doi.org/10.1128/jvi.78.17.9277-9284.2004
Autor:
M.R. Perrin, Craig T. Symes
Publikováno v:
Tropical Zoology. 16:47-62
Daily activity and flocking behaviour patterns of the Greyheaded Parrot Poicephalus fuscicollis suahelicus Reichenow 1898 were studied during the nonbreeding (August-December) and breeding (March-August) season in Northern Province, South Africa. Cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07077134cf6c1950010a3b6c29967ab3
https://doi.org/10.1080/03946975.2003.10531183
https://doi.org/10.1080/03946975.2003.10531183
Autor:
Ara Monadjem, M.R. Perrin
Publikováno v:
African Zoology. 38:127-137
Small mammals were live-trapped monthly over a three-year period in a subtropical grassland in Swaziland. Seven species of small mammals were recorded from the study grid. There were significant seasonal and inter-annual differences in rodent numbers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0895e7660302cf19124364c458db3209
https://doi.org/10.1080/15627020.2003.11657200
https://doi.org/10.1080/15627020.2003.11657200
Publikováno v:
Ostrich. 73:127-134
Ruppell's Parrot, Poicephalus rueppellii, inhabits a markedly seasonal environment in Namibia and feed on plant seeds that respond to that seasonality. Although Ruppell's Parrots were seen feeding at 37 plant species they showed clear preferences. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c00a5e8b4cc46db8db8491514b9b11f8
https://doi.org/10.1080/00306525.2002.11446741
https://doi.org/10.1080/00306525.2002.11446741
Publikováno v:
African Zoology. 37:67-80
The effect of bill structure on seed preference and handling time in granivorous birds was determined for a long, slender dove bill, a conical finch bill, and a hooked parrot bill using diamond doves (Geopelia cuneata), Java sparrows (Padda oryzivora
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3181c4967689b42ee2fd2fad7b5edfc1
https://doi.org/10.1080/15627020.2002.11657157
https://doi.org/10.1080/15627020.2002.11657157