If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

The response of a New Guinean avifauna to conversion of forest to small-scale agriculture

$48.00 plus tax (Refund Policy)

Download / Buy Article:

Abstract:

In comparison with other tropical forest land uses such as selective logging, little is known of the impacts on wildlife of the many forms of small-scale agriculture practised across the tropics. We present density estimates, derived using a point count distance sampling method, for 31 bird species in primary forest, old abandoned gardens and active/recently abandoned gardens at two altitudes in the Crater Mountain Wildlife Management Area (CMWMA), Papua New Guinea. There were clear habitat differences between the six habitat/altitude categories, with, for example, clines in tree sizes and canopy cover from highest values in primary forest to lowest values in current gardens. At lower altitudes, primary forest held highest densities of most species, whereas at higher altitudes, old abandoned gardens had greater densities of many birds, especially insectivores.canocowas used to ordinate bird species with respect to major habitat gradient axes. Major axes were associated with differences in bird responses to forest conversion as well as altitudinal differences in species composition. Most important was that several insectivores (especially monarchs, fantails, etc.) formed a cluster of species associated with intact, high-biomass forest. We suggest that most species reacted moderately to habitat changes currently occurring, and this may be due in part to the fact that only a small proportion of the landscape at CMWMA has been converted to agriculture (around 13% may be current or recently abandoned gardens). There were, however, species with comparatively low densities in agricultural habitats and these included several insectivores, the terrestrial Blue Jewel-babbler Ptilorrhoa caerulescens, and three out of four birds of paradise.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1474-919X.2006.00577.x

Affiliations: 1: Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa 2: Wildlife Conservation Society-Papua New Guinea Program, PO Box 277, Goroka, EHP, Papua New Guinea

Publication date: October 1, 2006

Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more