Distribution and status of the smooth-coated otter Lutra perspicillata in National Chambal Sanctuary, India

The distribution and relative density of smooth-coated otters Lutra perspicillata Geoffroy were studied along a 425 km stretch of Chambal river within the National Chambal Sanctuary, Central India, between 1988 and 1992. Sample sites of 1 km were surveyed every 5 km. The study revealed that the dist...

Celý popis

Uloženo v:

Podrobná bibliografie
Vydáno v:	Biological conservation Ročník 80; číslo 2; s. 199 - 206
Hlavní autoři:	Hussain, Syed Ainul, Choudhury, Binod Chandra
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Oxford Elsevier Ltd 01.05.1997 Elsevier
Témata:	Animal and plant ecology Animal, plant and microbial ecology Animals Applied ecology Autoecology Biological and medical sciences central India conservation status Conservation, protection and management of environment and wildlife distribution Freshwater Fundamental and applied biological sciences. Psychology habitat Lutra perspicillata Mammalia Parks, reserves, wildlife conservation. Endangered species: population survey and restocking smooth-coated otters Vertebrata Asia India India, Madhya Pradesh, Natl. Chambal Sanctuary conservation status central India smooth-coated otters habitat distribution Fissipedia Carnivora Vertebrata Mammalia Bank Spatial distribution Hard substrate Habitat selection Animal conservation
ISSN:	0006-3207, 1873-2917
On-line přístup:	Získat plný text
Tagy:	Přidat tag Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!

Popis
Shrnutí:	The distribution and relative density of smooth-coated otters Lutra perspicillata Geoffroy were studied along a 425 km stretch of Chambal river within the National Chambal Sanctuary, Central India, between 1988 and 1992. Sample sites of 1 km were surveyed every 5 km. The study revealed that the distribution of otters along the river is patchy and largely restricted to the upper reaches. During the 1988 survey, 36% of sites were found with otter signs but only 24% in 1992. Recent increases in disturbance along the river due to construction of road bridges and mining activities might have put pressure on the population. Most of the positive sites (66%) were found on rocky banks, followed by clay banks (19%), banks with shoreline vegetation and marsh (11%) and sandy banks (3%). During intensive monitoring of four radio-implanted otters, c. 78% locations were made on rocky banks, 19% on banks with shoreline vegetation and marsh, with < 3% on sandy banks and <1% on clay banks, indicating greater preference for rocky banks owing to the greater availability of den sites. As a conservation measure, monitoring of the otter population should be done regularly and restrictions on cultivation, grazing and mining along the banks should be imposed within the Sanctuary limits, especially in the identified stretches.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0006-3207 1873-2917
DOI:	10.1016/S0006-3207(96)00033-X