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Research article - Peer-reviewed, 2020

Land Sparing Can Maintain Bird Diversity in Northeastern Bangladesh

Hasan, Akib; Girona, Miguel Montoro; Grosbois, Guillaume; Saha, Narayan; Halim, Md Abdul

Abstract

One of humanity's most significant challenges in the process of attaining the established sustainability goals is balancing the growing human demand for food and the need to conserve biodiversity. This challenge requires appropriate land uses that are able to conserve biodiversity while ensuring ample food supply. This study compares bird species diversity and abundance in areas undergoing land sharing and land sparing in northeastern Bangladesh (West Bhanugach Reserved Forest). Birds serve as useful biologic indicators because of their presence within different trophic levels and their well-studied ecology. To survey birds, we selected a total of 66 sampling sites within land-sharing (33) and land-sparing (33) land-use areas. Between May and June 2017, we observed and recorded bird calls within a 50-m radius around each sampling site. We counted 541 individuals from 46 species of birds. The Shannon bird diversity was higher in the land-sparing sites (1.52) than in the land-sharing sites (1.23). We found approximately 30% more bird species (39 vs. 30) and 40% more individuals (318 vs. 223) in the land-sparing areas than land-sharing areas. Three bird species,Arachnothera longirostra,Micropternus brachyurusandCopsychus malabaricus, were significantly associated with the land-sparing sites. This study shows that land sharing negatively affects bird diversity, richness and abundance compared to land-sparing. The use of chemical fertilizers and the lack of food, such as insects, for birds can explain the lower diversity, richness and abundance of birds in the land-sharing areas. Although land sharing is an effective means of producing food, land sparing is the most effective land-use practice for preserving bird diversity in northeastern Bangladesh.

Keywords

agriculture; biodiversity; conservation; habitat loss; forestry; land sharing; land use; sustainability; wildlife

Published in

Sustainability
2020, volume: 12, number: 16, article number: 6472
Publisher: MDPI

Authors' information

Hasan, Akib
University Quebec Abitibi-Temiscamingue
Montoro Girona, Miguel
Swedish University of Agricultural Sciences, Department of Wildlife, Fish and Environmental Studies
Montoro Girona, Miguel
Université du Québec en Abitibi-Témiscamingue (UQAT)
Grosbois, Guillaume
Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
Grosbois, Guillaume
Université du Québec en Abitibi-Témiscamingue (UQAT)
Saha, Narayan
Shahjalal University of Science and Technology
Halim, Md Abdul
University of Toronto

Sustainable Development Goals

SDG15 Life on land

UKÄ Subject classification

Environmental Sciences related to Agriculture and Land-use

Publication Identifiers

DOI: https://doi.org/10.3390/su12166472

URI (permanent link to this page)

https://res.slu.se/id/publ/108628