Search Results - "Bernard, R T"

Rainfall, Food Abundance and Timing of Parturition in African Bats by Cumming, G. S., Bernard, R. T. F.

“…We used published results from studies in Africa to test the hypothesis that the timing of parturition in the Chiroptera is constrained by rainfall. Comparison…”
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The effects of melatonin on sperm motility in vitro in Wistar rats by Gwayi, N., Bernard, R. T. F.

“…The effects of physiological concentrations of melatonin on motility of spermatozoa from Wistar rats were assessed in vitro. Melatonin had dose‐dependent…”
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The diet and ecological role of giraffe (Giraffa camelopardalis) introduced to the Eastern Cape, South Africa by Parker, D. M., Bernard, R. T. F.

“…With an increase in the popularity of wildlife ranching in southern Africa has come the introduction of non-native (extralimital) mammalian herbivores…”
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Habitat selection and feeding ecology of the cheetah (Acinonyx jubatus) in thicket vegetation: is the cheetah a savanna specialist? by Bissett, C., Bernard, R. T. F.

“…Habitat selection and feeding ecology of a reintroduced population of cheetahs Acinonyx jubatus were studied in a 16 000 ha game reserve in the Eastern Cape…”
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Gender differences in the inhibitory effects of a reduction in ambient temperature and a reduction in food quantity on reproduction in the Southern African rodent, Rhabdomys pumilio by Jackson, C, Bernard, RT

“…The effects of a reduction in ambient temperature (from 26 degrees C to 15 degrees C) and a 10% reduction in daily food consumption on reproductively active…”
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African Bats: Evolution of Reproductive Patterns and Delays by Bernard, R. T. F., Cumming, G. S.

“…Patterns of reproduction in African bats can be compared in three taxon-based groups: fruit bats (Megachiroptera), freetailed bats (Microchiroptera:…”
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The diet of a small group of extralimital giraffe by Parker, D. M., Bernard, R. T. F., Colvin, S. A.

“…Giraffe are extralimital in the Eastern Cape Province, South Africa where recent local introductions have persisted despite limited research into their impact…”
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The 'hybrid' character of the gametes and reproductive tracts of the African shrew, Myosorex varius, supports its classification in the Crocidosoricinae by Bedford, J M, Bernard, R T, Baxter, R M

“…The Soricidae are generally considered to comprise two subfamilies – Crocidurinae and Soricinae – each of which has distinctive reproductive characteristics…”
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Failure of the estrous cycle and spermatogenesis to respond to day length in a subtropical African rodent, the pouched mouse (Saccostomus campestris) by BERNARD, R. T. F, HALL, J

“…Little is known about the role of photoperiod in the control of reproduction in mammals from the tropics in general and, in particular, from the Afrotropics…”
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Home range size, spatial distribution and habitat use of elephants in two enclosed game reserves in the Eastern Cape Province, South Africa by Roux, C, Bernard, R.T.F

“…We studied space use and habitat selection by elephants in two enclosed reserves in the Eastern Cape Province (South Africa) that conserve components of the…”
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Effects of prolactin and hCG treatment on luteal activity and the conceptus during delayed implantation in Schreibers' long-fingered bat (Miniopterus schreibersii) by Bernard, R T, Bojarski, C

“…In Schreibers' long-fingered bat ( Miniopterus schreibersii ) from South Africa, implantation is delayed from May to August during which time the corpus luteum…”
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A review of spermatozoan morphology in Cetacea with new data for the genus Kogia by Plön, S., Bernard, R. T. F.

“…There have been few studies on the morphology of spermatozoa of the Cetacea. Here we present a review of the existing published material and present new data…”
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Levels of aloe mortality with and without elephants in the Thicket Biome of South Africa by Parker, D.M, Bernard, R.T.F

“…Studies concerning the influence of African elephants (Loxodonta africana) on vegetation have produced contradictory results; some show minimal or no effect…”
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Consumption of grass by black rhinoceroses in the Thicket Biome by Parker, D.M, Bernard, R.T.F, Fike, B

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Effects of supplementary food on the winter inhibition of reproduction in male and female four-striped field mice (Rhabdomys pumilio) by Jackson, C, Bernard, R T F

“…The effects of winter food supplementation on reproduction in the seasonally breeding four-striped field mouse Rhabdomys pumilio were investigated at Mountain…”
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Plasma progesterone and luteinizing hormone concentrations and the role of the corpus luteum and LH gonadotrophs in the control of delayed implantation in Schreibers' long-fingered bat (Miniopterus schreibersii) by Bernard, R T, Bojarski, C, Millar, R P

“…In Schreibers' long-fingered bat from South Africa (∼33°S) copulation, ovulation and fertilization occurred in April and May, implantation was delayed until…”
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Bushclumps as refugia for small mammals in two Eastern Cape conservation areas by Whittington-Jones, G. M, Bernard, R. T. F, Parker, D. M

“…Bushclumps are scattered islands of thicket-like vegetation within a matrix of more open vegetation. We investigated the role of bushclumps as refugia for…”
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Seasonal changes in plasma testosterone concentrations and Leydig cell and accessory gland activity in the Cape horseshoe bat (Rhinolophus capensis) by Bernard, R T

“…Male Cape horseshoe bats were studied in the Cape Province of South Africa (33 degrees 17'S, 26 degrees 25'E) between January 1983 and June 1985. The…”
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Patterns of Leydig cell and LH gonadotroph activity, and plasma testosterone concentrations in the seasonally reproducing Schreibers' long-fingered bat (Miniopterus schreibersii) by Bernard, R T, Bojarski, C, Millar, R P

“…Spermatogenesis in Schreibers' long-fingered bat from ∼ 33° S in South Africa was seasonal, and occurred in the 3 months (February–April) preceding ovulation…”
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Short Day Length Alone Does Not Inhibit Spermatogenesis in the Seasonally Breeding Four-Striped Field Mouse (Rhabdomys pumilio) by JACKSON, C, BERNARD, R. T. F

“…This study was an examination of the effect of photoperiod on spermatogenesis and the accessory glands of the four-striped field mouse ( Rhabdomys pumilio ), a…”
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