- March 25, 2016
- Source:
- Wildlife Conservation Society
- Summary:
- Maintaining even the tiniest wildlife sanctuaries will help preserve some biodiversity in increasingly urbanized landscapes, a new report suggests.
A new study by a team of researchers
from the Centre for Ecological Sciences at the Indian Institute of
Science, Manipal University, Centre for Wildlife Studies and the
Wildlife Conservation Society (WCS)-India, says that maintaining even
the tiniest wildlife sanctuaries will help preserve some biodiversity in
increasingly urbanized landscapes.
The authors of the study say their findings could have important
implications in future land-use -- particularly in rapidly urbanizing
regions where some wildlife still persist.
The researchers looked at populations of blackbuck -- a near threatened species of antelope -- in and around the Great Indian Bustard Sanctuary in Nannaj, Maharashtra in south-central India. Increasing encroachment by humans has fragmented grasslands into plantations, grazing areas and agricultural lands. The landscape is densely populated by humans and cattle and is representative of most semi-arid landscapes in India.
The researchers found that blackbuck preferred to stay in the safety of the sanctuary when food was abundant to avoid the risks associated with humans and livestock. But as food declined after the monsoon season, blackbuck began to move into riskier unprotected grasslands, thus responding dynamically to seasonally changing levels of food and risks in the different parts of the landscape.
This study finds that the presence of small sanctuaries or "refuges" in densely populated semi-arid landscapes allows these antelopes to survive, and provides clues as to why animals might be moving outside sanctuaries. A desperate search for food could thus be leading blackbuck to make seasonal changes in their movements and venture into more risky areas located outside the sanctuary.
These factors need to be taken into consideration as more grasslands are converted and developed for human use. This study shows that coexistence of conservation and development is possible, provided that wildlife are offered refuges, such as the small protected areas that constitute the Great Indian Bustard Sanctuary.
Funded by the Indian Ministry of Environment, Forests and Climate Change and the Royal Norwegian Embassy in New Delhi, this study examined how blackbuck reacted to the costs and benefits of living in this habitat. Researchers measured the amount and quality of grass, the major blackbuck food source, and identified risky areas, where blackbuck were most likely to come across wolves, dogs or humans.
The researchers looked at populations of blackbuck -- a near threatened species of antelope -- in and around the Great Indian Bustard Sanctuary in Nannaj, Maharashtra in south-central India. Increasing encroachment by humans has fragmented grasslands into plantations, grazing areas and agricultural lands. The landscape is densely populated by humans and cattle and is representative of most semi-arid landscapes in India.
The researchers found that blackbuck preferred to stay in the safety of the sanctuary when food was abundant to avoid the risks associated with humans and livestock. But as food declined after the monsoon season, blackbuck began to move into riskier unprotected grasslands, thus responding dynamically to seasonally changing levels of food and risks in the different parts of the landscape.
This study finds that the presence of small sanctuaries or "refuges" in densely populated semi-arid landscapes allows these antelopes to survive, and provides clues as to why animals might be moving outside sanctuaries. A desperate search for food could thus be leading blackbuck to make seasonal changes in their movements and venture into more risky areas located outside the sanctuary.
These factors need to be taken into consideration as more grasslands are converted and developed for human use. This study shows that coexistence of conservation and development is possible, provided that wildlife are offered refuges, such as the small protected areas that constitute the Great Indian Bustard Sanctuary.
Funded by the Indian Ministry of Environment, Forests and Climate Change and the Royal Norwegian Embassy in New Delhi, this study examined how blackbuck reacted to the costs and benefits of living in this habitat. Researchers measured the amount and quality of grass, the major blackbuck food source, and identified risky areas, where blackbuck were most likely to come across wolves, dogs or humans.
Story Source:
The above post is reprinted from materials provided by Wildlife Conservation Society. Note: Materials may be edited for content and length.
The above post is reprinted from materials provided by Wildlife Conservation Society. Note: Materials may be edited for content and length.
Journal Reference:
- Yarlagadda Chaitanya Krishna, Ajith Kumar, Kavita Isvaran. Wild Ungulate Decision-Making and the Role of Tiny Refuges in Human-Dominated Landscapes. PLOS ONE, 2016; 11 (3): e0151748 DOI: 10.1371/journal.pone.0151748
Wildlife
Conservation Society. "Micro-sanctuaries key to survival of wildlife in
human-dominated landscapes." ScienceDaily. ScienceDaily, 25 March 2016.
<www.sciencedaily.com/releases/2016/03/160325131441.htm>.
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