Zobrazeno 1 - 10
of 188
pro vyhledávání: '"Villet, M.H."'
Autor:
Williams, K.A., Villet, M.H.
Entomological forensic evidence has been used in southern Africa for decades but explicitly forensic research began in southern Africa only 26 years ago. Although applicable local research has accumulated since 1921, it is scattered in a diverse lite
Mature spermatozoa from four species of platypleurine cicadas (Albanycada albigera, Azanicada zuluensis, Platypleura capensis and P. hirtipennis) were examined by light and electron microscopy. The filiform sperm have a similar ultrastructure in all
Externí odkaz:
http://eprints.ru.ac.za/369/1/Sperm_morphology_in_four_species_of_African_platypleurine_cicadas.pdf
Truly understanding biological diversity requires a move from descriptive studies to mechanistic interpretations based on comparative biology and a thorough recognition of the natural history of the focal organisms. A useful step in such comparative
Externí odkaz:
http://eprints.ru.ac.za/115/1/sajsci_v100_n11_a18%5B1%5D.pdf
The platypleurine cicadas have a wide distribution across Africa and southern Asia. We investigate endothermy as a thermoregulatory strategy in 11 South African species from five genera, with comparisons to the lone ectothermic platypleurine we found
The cicada genus Platypleura has a wide distribution across Africa and southern Asia. We describe endothermic thermoregulation in four South African species that show crepuscular signaling behavior. This is the first evidence of thermoregulation in p
Autor:
Robertson, M.P., Villet, M.H., Fairbanks, D.H.K., Henderson, L., Higgins, S.I., Hoffmann, J.H., Le Maitre, D.C., Palmer, A.R., Riggs, I., Shackleton, C.M., Zimmerman, H.G.
Every country has weed species whose presence conflicts in some way with human management objectives and needs. Resources for research and control are limited, so priority should be given to species that are the biggest problem. The prioritization sy
Models used to predict species’ potential distributions have been described as either correlative or mechanistic. We attempted to determine whether correlative models could perform as well as mechanistic models for predicting species potential dist
Externí odkaz:
http://eprints.ru.ac.za/367/1/Comparing-models.pdf
Larvae of Sarcophaga (Curranea) tibialis (S. tibialis) were reared at constant temperature on chicken liver treated with a steroid or a barbiturate at concentrations that would be lethal, half-lethal and twice-lethal doses for humans. Trends to great
Since the South African Department of Health has tabled legislation to make fluoridation of public water supplies mandatory, the issue of whether fluoride is beneficial or harmful has, once again, become controversial in South Africa. We reviewed the
Externí odkaz:
http://eprints.ru.ac.za/377/1/Finding_the_optimum_-_fluoridation_of_potable_water_in_South_Africa.pdf
Autor:
Villet, M.H., author
Publikováno v:
Social Insects and the Environment: Proceedings of the 11th International Congress of IUSSI, 1990 (International Union for the Study of Social Insects). :386-386
