Reviews some of the sources of error in two methods of estimating the age structures of elephant populations from vertical photography relating the lengths of back to age; compares the two methods by reference to elephants of known age in Manyara National Park of Tanzania and Amboseli National Pa...
Enlace original:
https://cgspace.cgiar.org/handle/10568/4206
Douglas-Hamilton, I.
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Hillman, A.K.K.
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Moss, C.J.
,
[Notes on vertical photography of elephants for age determination]
,
Notes on vertical photography of elephants for age determination