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Autor: Jolly, G.M.

Reviews procedures for obtaining reliable information on animal populations, other ecological features and land use generally from low-flying aircraft by direct observation or conventional photography, with reference to types of sampling unit, and the relative merits of unstratified systematic an...


Jolly, G.M.[A review of the sampling methods used in aerial survey]A review of the sampling methods used in aerial survey
Cardona Mejía, CésarRodríguez Torres, Isaura VivianaBueno Mondragon, J.M.Tapia, X[Manejo de la mosca blanca o palomilla en los cultivos de frejol y vainita]Manejo de la mosca blanca o palomilla en los cultivos de frejol y vainita
Cardona Mejía, CésarRodríguez Torres, Isaura VivianaBueno Mondragon, J.M.[Manejo de la mosca blanca o palomilla en los cultivos de habichuela y frijol]Manejo de la mosca blanca o palomilla en los cultivos de habichuela y frijol

Presents workshop papers & discussion summaries on the development of low-level aerial survey techniques and presents applications to livestock, wildlife and land-use surveys. Reviews survey designs and sampling procedures as well as problems of bias, levels, from ground survey to satellite image...


Grimsdell, J.J.R.Westley, S.[Low-level aerial survey techniques]Low-level aerial survey techniques
Autor: Smith, G.E.J.

Discusses the choice of sampling design for low-level aerial surveys, with particular reference to stratification and the choice between systematic and random sampling.


Smith, G.E.J.[Some thoughts on sampling design]Some thoughts on sampling design
Moreira, FMSHuising, JeroenBignell, D.E.[A handbook of tropical soil biology: sampling and characterization of below-ground biodiversity]A handbook of tropical soil biology: sampling and characterization of below-ground biodiversity

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