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Wyświetlanie 1-3 z 3
Tytuł:
Rice Land inhabiting Long Jawed Orb Weavers, Tetragnatha Latreille, 1804 (Tetragnathidae: Araneae) of South 24-Parganas, West Bengal, India
Autorzy:
Basu, Debarshi
Raychaudhuri, Dinendra
Powiązania:
https://bibliotekanauki.pl/articles/1192604.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Spiders
Orb-weavers
Tetragnatha
South 24 Parganas
India
Opis:
Spiders inhabiting rice land ecosystem demand serious consideration primarily due their predatory efficiency. In India, their role as a potential bio-control agent is yet to be evaluated. The coastal ecosystem in the Gangetic Delta at the southern part of West Bengal, India, exhibits a wide variety of predatory spider population because of climatic fluctuation, soil quality and several other factors. Orb-weaving spiders appear to be of special importance as they trap more than what they actually consume. The present study is aimed at unfolding the taxonomic diversity of Tetragnatha Latreille, 1804 (family Tetragnathidae, Menge, 1866) which is probably the mostly predominant group amongst orb-weavers found in rice fields of South 24 Parganas, West Bengal, India. Of the seven tetragnathid species recorded from the study area, three, T. chauliodus (Thorell), T. boydi O. P. - Cambridge, and T. josephi Okuma are found to be new from the country. The referred species are therefore described and illustrated. Further a key to the species occurring in the area has also been provided.
Źródło:
World Scientific News; 2016, 55; 210-239
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the new sac spiders (Araneae: Clubionidae) of Dooars, West Bengal, India
Autorzy:
Dhali, Dhruba Chandra
Roy, Tapan Kumar
Saha, Sumana
Raychaudhuri, Dinendra
Powiązania:
https://bibliotekanauki.pl/articles/1192065.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
New Sac spiders
Clubiona
Forest reserves
Tea estates
Dooars
West Bengal
India
Opis:
Seven new sac spiders, including one new from India, of the genus Clubiona Latreille, 1804 are recorded from the forest reserves and their adjoining tea estates of Dooars, West Bengal, India. The species are described and illustrated with suitable key.
Źródło:
World Scientific News; 2016, 50; 278-305
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spider Faunal Diversity of Barasat and Basirhat, 24 Parganas, West Bengal, India
Autorzy:
Saha, Sumana
Das, Indranil
Raychaudhuri, Dinendra
Powiązania:
https://bibliotekanauki.pl/articles/1113472.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Barasat
Basirhat
Distribution
Diversity Indices
India
New record
North 24 Parganas
Spiders
West Bengal
Opis:
The present study is on the spider fauna of Barasat and Basirhat of North 24 Parganas, West Bengal, India. A total of 23 species belonging to 20 genera and 11 families are sampled during the period August 2016 to July 2017. These include the newly recorded species, Anepsion maritatum (O.P. Cambridge) from the state. The dominant guild is constituted by the Orb web weavers (30.43%). Analysis of their zoogeographical distribution reveals that the fauna apart from being Oriental also includes some Australian (23%), Palaearctic (21.73%) and Ethiopian, Nearctic and Neotropical (each 17.39%) elements. Spiders are mostly prevalent during Postmonsoon (82.60%), followed by Premonsoon (60.86%) and Monsoon (47.82%) which is in conformity with the incidence of the insect species. Two species namely Eriovixia excelsa (Simon) and Leucauge decorata (Blackwall) are recorded throughout the period of survey. All the diversity indices are higher in case of Basirhat as compared to Barasat. An overall negative impact of urbanization on spider diversity, distribution and abundance is evidenced from the present study. Ranking sequence of the most abundant species (six) in descending order are: Leucauge decorata (25.68%) > Eriovixia excelsa (19.13%) > Pholcus phalangioides (11.48%) > Plexippus paykullii (8.74%) > Anepsion maritatum (7.10%) > Cyrtophora cicatrosa (6.56%). Sex ratio (♀ : ♂) is about 12 : 1. Availability of food/season and/or cannibalism may be the factors for female dominated society.
Źródło:
World News of Natural Sciences; 2017, 15; 49-85
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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