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Wyświetlanie 1-3 z 3
Tytuł:
Ant Faunal Diversity of Bibhutibhushan Wildlife Sanctuary, North 24 Parganas, West Bengal, India
Autorzy:
Saha, Sumana
Roy, Tamoghna
Raychaudhuri, Dinendra
Powiązania:
https://bibliotekanauki.pl/articles/1065086.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Ant Fauna
Bibhutibhusan Wildlife Sanctuary
Functional groups
New Record
Opis:
The present study unfolds the diversity of ants of Bibhutibhushan Wildlife Sanctuary, North 24 Parganas, West Bengal, India. A total of 22 species under 13 genera distributed over 5 subfamilies could be recorded. These include three newly recorded species namely Leisiota frauenfeldi (Mayr) (Formicinae), Crematogaster (Acrocoelia) hodgsoni Forel (Myrmicinae) and Brachyponera nigrita Emery (Ponerinae) from the state and nearly 90.5% of the reported species are new for the district (marked*). Analysis of their zoogeographical distribution reveals that the fauna apart from being Oriental also includes some Palaearctic (72.73%), Australian (13.63%) and Ethiopian (4.54%) elements. The dominant functional group is constituted by the Subordinate Camponotini (36.37%) followed by Generalized Myrmicinae (22.73%), Tropical Climate Specialist (13.63%), Specialist Predator (9.09%), Opportunist (9.09%) and Dominant Dolichorinae (9.09%). Ants are mostly prevalent during Monsoon (81.82%), followed by Postmonsoon (68.18%) and Premonsoon (50.00%). Two species namely Camponotus (Tanaemyrmex) compressus (Fabricius) and Oecophylla smaragdina (Fabricius) are recorded throughout the year. Ranking sequence of the most abundant species in descending order is: Camponotus (Tanaemyrmex) compressus (15.01%) = Oecophylla smaragdina (15.01%) > Crematogaster (Acrocoelia) hodgsoni (12.91%). Camponotus (Tanaemyrmex) compressus and Oecophylla smaragdina are the most dominant species. Data also reveals that both core and buffer zones conjointly offer a better combination of habitat requirement, as 12 species are common in both the zones. Highest no. of species are recorded from leaf litter and ground combined together (22 species) and 6 species are arboreal in nature. Shannon’s Diversity Index (α diversity) and Simpson’s Diversity Index both are higher in buffer zone. This reflects the habitat exploitation efficiency of the encountered species. As per Jaccard Index (β diversity) the similarity value of both the zones is only 0.55.
Źródło:
World Scientific News; 2019, 120, 2; 81-110
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
Tytuł:
Dung beetles: key to healthy pasture? An overview
Autorzy:
Saha, Sumana
Biswas, Arghya
Ghosh, Avirup
Raychaudhuri, Dinendra
Powiązania:
https://bibliotekanauki.pl/articles/1193308.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Coleoptera
Dung beetle
Dweller
New record
O. spinipes Roth
Oniticellus cinctus (Fabricius)
Scarabaeidae
West Bengal
Opis:
Dung beetles (Coleoptera: Scarabaeidae) do just what their name suggests: they use the manure, or dung of other animals in some unique ways! Diversity of the coprine members is reflected through the differences in morphology, resource relocation and foraging activity. They use one of the three broad nesting strategies for laying eggs (Dwellers, Rollers, Tunnelers and Kleptocoprids) each with implications for ecological function. These interesting insects fly around in search of manure deposits, or pats from herbivores like cows and elephants. Through manipulating faeces during the feeding process, dung beetles initiate a series of ecosystem functions ranging from secondary seed dispersal to nutrient cycling and parasite suppression. The detritus-feeding beetles play a small but remarkable role in our ecosystem. They feed on manure, use it to provide housing and food for their young, and improve nutrient cycling and soil structure. Many of the functions provide valuable ecosystem services such as biological pest control, soil fertilization. Members of the genus Onthophagus have been widely proposed as an ideal group for biodiversity inventory and monitoring; they satisfy all of the criteria of an ideal focal taxon, and they have already been used in ecological research and biodiversity survey and conservation work in many regions of the world. The existence of distinct communities of coprophagous beetles, which differ in their species composition, species-abundance relations and efficiency of dung removal, plays a major role in the breakthrough in pasture and livestock management. They as well play roles in pollination and trophic management. The dung beetles release strategy group concluded that they also result in the reduction of greenhouse gas emitted from agricultural sector like many others; these insects too have medicinal value. Even after the presence of high endemicity, they are still somewhat at back place in an adjunct of apt knowledge on them with very few studies done on them, the need of the hour being to utilise this potential as bioresource in the interest of society and socio-economic value. Present paper is an attempt to provide an overview on the knowledge generated and what we could do so far on the dung beetle diversity in the Dairy Farm of Ramakrishna Mission Ashrama Campus, Narendrapur, South 24 Parganas & buffaloshed Naihati, North 24- Parganas, West Bengal.
Źródło:
World Scientific News; 2021, 153, 2; 93-123
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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