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Abstract - Issue May 2015, 36 (3) Back
nstantaneous and historical temperature effects on a-pinene
Population
trend of wintering gulls in Kadalundi-Vallikkunnu Community Reserve, Southern
India
K.M. Aarif1*,
P.K. Prasadan1, P. M. Basheer2 and S.V. Abdul Hameed3
1Department of
Zoology, Mary Matha Arts and Science College, Vemom PO, Mananthavady,
Wayanad-670 645, Kerala, India
2Palishakkottu
Purayil, Elettil, Koduvally, Kozhikode-673 572, Kerala, India
3Department of
Zoology, Wildlife Biology Division, Farook College, Calicut-673 632, Kerala,
India
*Corresponding
Author?s E-mail: achuarif@gmail.com
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Publication
Data
Paper received:
04 September 2013
Revised received:
25 May 2014
Re-revised received:
03 August 2014
Accepted:
28 August 2014
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Abstract
Data
on population trend of birds in stop-over sites is a prerequisite for
managers to implement/execute species/ecosystem-oriented conservation
programme. However, such data for wetland birds and their associated
ecosystems is meagre/unavailable in India. At this juncture, population trend
of gulls in Kadalundi-Vallikkunnu Community Reserve (KVCR) was evaluated on
the basis of primary and secondary data collected between 1989 and 2009. Data
of 1,26,103 birds belonging to five species were recorded during the study.
During 2005-2009, Black-headed Gull and Brown-headed Gull were dominant
species, while Pallas's Gull and Slender-billed Gull were lesser in number.
In response to data on observation made during 1989, population of scavenging
gulls viz., Black-headed Gull and Brown-headed Gull was increased to 165 and
135 % respectively, while the population of specialist gulls such as Pallas's
Gull and Slender-billed Gull found to be stable or on decline. Increasing
trend of scavenging gulls and declining pattern of specialist gulls could be
attributed to the consequences of habitat loss and other anthropogenic pressure
(over-fishing, mining,? pro-human developmental activities and dumping of
poultry wastes) in KVCR. Site-specific conservation measures need to be
undertaken across the stop-over sites in the West and East Coast of India to
conserve this vital habitat in the Central Asian Flyway.
Key
words
Kadalundi-Vallikkunnu
Community Reserve, Population trend, Stop-over sites, Wintering gulls
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