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Kahurananga, J.[Population estimates, densities and biomass of large herbivores in Simanjiro plains, northern Tanzania]Population estimates, densities and biomass of large herbivores in Simanjiro plains, northern Tanzania

Describes use of low - level aeral census in counting livestock in Kenya's Maasailand Group Ranches, concentrating on survey designs & efforts made to improve reliability of population estimates, Compares efficiency & precision of aerial & ground counts.


King, J.M.Sayers, A.R.Chara, P.Leeuw, P.N. dePeacock, C.P.[Improving aerial counts of Maasai livestock]Improving aerial counts of Maasai livestock

For a long time, trypanosomosis, spread by the tsetse fly Glossina, constrained human settlement in the Lambwe Valley, a south-western Kenya rangeland. After lengthy efforts to control tsetse over many years, the valley is currently experiencing an increase in human population growth rate, and r...


Muriuki, G.W.Njoka, T.J.Reid, Robin S.Nyariki, D.M.[Tsetse control and land-use change in Lambwe valley, south-western Kenya]Tsetse control and land-use change in Lambwe valley, south-western Kenya
Autor: Eshete, A.

Discribes a new sighting device that improves the accuracy of data collection during low-level aerial surveys. Shows the flight pattern used.


Eshete, A.[A new sighting device for aerial survey]A new sighting device for aerial survey
Autor: Eshete, A.

Discribes a new sighting device that improves the accuracy of data collection during low-level aerial surveys. Shows the flight pattern used.


Eshete, A.[Un outil novateur pour les recensements aeriens]Un outil novateur pour les recensements aeriens

Discusses, based on aerial surveys taken before and after the drought, the magnitude of population changes, both human & animal, that took place in west Central Niger during the drought and how the drought has affected different ethnic groups. Includes data on estimates of livestock population & ...


Bourn, D.M.Denda, I.Ridder, N.A. deWagenaar, K.T.Wint, W.[Secheresse et exode pastoral au Niger]Secheresse et exode pastoral au Niger

Little is known about the residual effects of crop residue (CR) and phosphorus (P) application on the fallow vegetation following repeated cultivation of pearl millet [Pennisetum glaucum (L.) R. Br.] in the Sahel. The objective of this study, therefore, was (i) to measure residual effects of CR, ...


Gerard, Bruno G.Hiernaux, Pierre H.Y.Muehlig-Versen, B.Buerkert, Andreas[Destructive and non-destructive measurements of residual crop residue and phosphorus effects on growth and composition of herbaceous fallow species in the Sahel]Destructive and non-destructive measurements of residual crop residue and phosphorus effects on growth and composition of herbaceous fallow species in the Sahel

Discusses, based on aerial surveys taken before and after the drought, the magnitude of population changes, both human & animal, that took place in west Central Niger during the drought and how the drought has affected different ethnic groups. Includes data on estimates of livestock population & ...


Bourn, D.M.Denda, I.Ridder, N.A. deWagenaar, K.T.Wint, W.[Where have all the livestock gone?]Where have all the livestock gone?

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