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3.838  Articles
1 of 385 pages  |  10  records  |  more records»
AbstractSelected Papers from the Rhinoceros Conservation Workshop, Skukuza, Kruger National Park,31 August – 4 September 1988 Water-hole census techniques as developed in Etosha for monitoring black rhinoceros are described in detail. The systematic reco... see more

We conducted a census of wild reindeer (Rangifer tarandus) on the Taimyr Peninsula during 21-25 July 2000. This was the eighteenth aerial population census of wild reindeer on the Taimyr since counts began in 1959. Prior to the census, we conducted reconn... see more

AbstractThe use of the Global Positioning System (GPS) for real-time data collecting during ecological aerial surveys (EAS) in the Kruger National Park (KNP) was investigated as an alternative to post-survey manual data capture. Results obtained during an... see more

Between 1984 and 1988, the size of the two caribou herds in northern Québec was derived by combining estimates of female numbers on calving grounds in June and composition counts during rut in autumn. Sampling with aerial photos was conducted on calving g... see more

The Orinoco goose, (Neochen jubata) is a grazing herbivore of open habitats that was once widely distributed in tropical South America. Centuries of overhunting and habitat loss have reduced it to widely scattered remnant populations; it is categoriz... see more

Vertical photographs of the calving grounds have been used since 1984 to estimate the caribou (Rangifer tarandus) population of the Rivière George Caribou Herd (RGCH) in Northern Québec and Labrador. In spite of large confidence intervals, the 1984 and 19... see more

This paper describes a simultaneously firing dual camera system that integrates a new generation radiometric thermal camera with a high spatial resolution natural color camera where all imagery is spatially indexed with local coordinates and managed by a ... see more

Este texto procura compreender algumas variáveis numéricas expostas pelo último Censo do Instituto Brasileiro de Geografia e Estatística (IBGE) referentes à evolução de grupos pentecostais e católicos no território brasileiro. Dando continuidade a reflexõ... see more

We recognized 184 herds of wild Rangifer tarandus, 102 in North America, 55 in Europe, 24 in Asia and 3 on South Georgia. Seventy-five percent of the world population of 3.3 to 3.9 million animals occurred in nine herds. All seven herds larger than 120 00... see more

1 of 385 pages  |  10  records  |  more records»