BIOMASS AND DENSITY OF WILD HERBIVORES IN DIFFERENT EAST AFRICAN HABITATS

BIOMASS AND DENSITY OF WILD HERBIVORES IN DIFFERENT EAST AFRICAN HABITATS INTRODUCTION One approach to the assessment of the potential value to be obtained from wildlife in different vegetation types is to measure the capacity of each to support an animal population. Such a measurement, termed the « carrying capacity », is also of value in planning the correct management of the land concerned. It is commonly expressed in one of two ways. The first method of expression, density or numbers of animals per unit area, affords a satisfactory basis for the comparison of different areas when a single species only is concerned. Where numbers of species varying in size are present a comparison of total population densities may be misleading. The second method of expression, biomass or total weight of animals per unit area, avoids this difficulty. Some of the published figures for biomass, however, are unrealistic or at least incomplete for two reasons. Firstly, calculations have sometimes been based on a single count of an area which is not a complete ecological unit; it may therefore be subject to periodic movement of animals in and out of the area. The count, and the biomass data derived from it, may then represent a minimum, maximum or intermediate value. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mammalia - International Journal of the Systematics, Biology and Ecology of Mammals de Gruyter

Loading next page...
 
/lp/de-gruyter/biomass-and-density-of-wild-herbivores-in-different-east-african-1m53M9NzBa
Publisher
de Gruyter
Copyright
Copyright © 2009 Walter de Gruyter
ISSN
0025-1461
eISSN
1864-1547
DOI
10.1515/mamm.1963.27.4.483
Publisher site
See Article on Publisher Site

Abstract

INTRODUCTION One approach to the assessment of the potential value to be obtained from wildlife in different vegetation types is to measure the capacity of each to support an animal population. Such a measurement, termed the « carrying capacity », is also of value in planning the correct management of the land concerned. It is commonly expressed in one of two ways. The first method of expression, density or numbers of animals per unit area, affords a satisfactory basis for the comparison of different areas when a single species only is concerned. Where numbers of species varying in size are present a comparison of total population densities may be misleading. The second method of expression, biomass or total weight of animals per unit area, avoids this difficulty. Some of the published figures for biomass, however, are unrealistic or at least incomplete for two reasons. Firstly, calculations have sometimes been based on a single count of an area which is not a complete ecological unit; it may therefore be subject to periodic movement of animals in and out of the area. The count, and the biomass data derived from it, may then represent a minimum, maximum or intermediate value.

Journal

Mammalia - International Journal of the Systematics, Biology and Ecology of Mammalsde Gruyter

Published: Jan 1, 1963

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month