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    Tytuł:
    Araneidae: A Remarkable Orb-weaving Group in the Rice Land Ecosystem of South 24 - Parganas, West Bengal, India
    Autorzy:
    Basu, Debarshi
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1193622.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Araneidae
    Neoscona theisi
    Orb-weavers
    Rice Land
    South 24 Parganas
    West Bengal
    Opis:
    As a potential predator the importance of spiders, especially dwelling in rice land, needs to be properly addressed. Till date the information gathered in this field isinsufficient. Due to various reasons, members of the family Araneidae Clerck, 1757, exhibit striking variability particularly in Gangetic delta. After sampling for two years, it is found that, Neoscona theisi (Walckenaer, 1841) is the most dominant group in the fields of South 24 Parganas, West Bengal, India, amongst araneids and their average sex ratio increases during kharif session due to multiple environmental factors including reproductive strategies.
    Źródło:
    World Scientific News; 2017, 71; 118-126
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Litter and ground dwelling spiders (Araneae: Arachnida) of reserve forests of Dooars, West Bengal
    Autorzy:
    Raychaudhuri, Dinendra
    Saha, Sumana
    Powiązania:
    https://bibliotekanauki.pl/articles/1182830.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Litter & Ground dwelling Spiders; Taxonomy; Distribution; Reserve Forests Dooars; West Bengal; India
    Opis:
    Litter, one of the forest habitats includes the layer of dead plant materials present on soil surface, comprising the surface litter (L-layer), the partially decomposing layer beneath it (F-layer) and the humus layer (H-layer). It plays a major role in the transfer of energy and nutrients in the forest ecosystem; litter fall data is often used to predict the productivity of ecosystem. The natural forest litter, surface and associated ground with its floral diversity and specialized micro niches support a variety of macro and micro arthropods including spiders through variations in moisture, cover materials, litter depth and structure. A strong correlation between species diversity of ground dwelling spiders and litter habitat is thought to exist because habitat affects spiders through prey availability, temperature fluctuation, moisture content and harborage. Ecological importance of spiders is undeniable as they are abundant predators of other forest litter arthropods. Globally people are laying emphasis on the studies of litter and ground dwelling spiders while India is yet to jump into. It is believed that the monograph is the first comprehensive study on the forest litter and ground dwelling spiders of the reserve forests of Dooars, West Bengal, India.
    Źródło:
    World Scientific News; 2017, 63; 1-240
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    Spiders (Araneae: Arachnida) of Reserve Forests of Dooars: Gorumara National Park, Chapramari Wildlife Sanctuary and Mahananda Wildlife Sanctuary
    Autorzy:
    Raychaudhuri, Dinendra
    Saha, Sumana
    Powiązania:
    https://bibliotekanauki.pl/articles/1193944.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Chapramari Wildlife Sanctuary
    Distribution
    Dooars
    Gorumara National Park
    Mahananda Wildlife Sanctuary
    Reserve Forests
    Spiders
    Taxonomy
    West Bengal
    Opis:
    Spiders have established themselves as a model group in biochemical (silk and venom proteins), behavioural (sexual and web building behaviours) and ecological (foraging, prey-predator interaction and IPM) research. They are also utilized as ecological indicators in many terrestrial communities. Appreciating the bioresource value of spiders, present discourse is second in the series on the spiders of Gorumara National Park, Chapramari WildLife Sanctuary (Dist. Jalpaiguri) and Mahananda WildLife Sanctuary (Dist. Darjeeling), West Bengal, India. The study area falls within the eastern Himalaya, one of the global hotspots. It is worthwhile to mention that despite sincere efforts Indian spiders of the protected areas remained unexplored until the editors initiated studying the group since 1993. The monograph embodies taxonomic account and distribution of the species recorded from different ranges of these reserve forests.
    Źródło:
    World Scientific News; 2015, 20; 1-336
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamics of pest complex of brinjal in the farmland of Ramakrishna Mission Ashrama Campus, Narendrapur, West Bengal, India
    Autorzy:
    Saha, Sumana
    Adhikary, Sushmita
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1031664.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Aphis gossypii
    Bemisia tabaci
    Brinjal pests
    Centrococcus insolitus
    Henosepilachna vigintioctopunctata
    Leucinodes orbonalis
    seasonal incidence
    Opis:
    A field trial is conducted to study the seasonal incidence of five pests namely Brinjal shoot & fruit borer [Leucinodes orbonalis Guenee], Hadda beetle [Henosepilachna vigintioctopunctata (Fabricius)], Mealy bug [Centrococcus insolitus (Green)], Aphid [Aphis gossypii (Glover) and White fly Bemisia tabaci (Gennadius) on brinjal in relation to weather parameters at agricultural farm of RKMVERI campus, Narendrapur during kharif & rabi crop seasons (2019-20). The brinjal crops receive pests load from 9 to 15 week plant age and 10 to 17 week plant age during kharif and rabi crop season respectively. The all five pests attain maximum peak sequentially sharing various microhabitats for feeding on host plants. Among the five pests recorded shoot & fruit borer appears as the major pest enjoying the crop to its optimum throughout the season till harvest and seems to cause heavy damage in brinjal production. Mealy bugs attack the brinjal leaves only in the kharif crop whereas white flies are encountered in the field during rabi crop season only. In kharif season during the crop growing period, borer caterpillar incidence % is significant and positively correlated with avg. temperature (°C). For rabi season due to lack of complete field data on the incidence pattern of pest species correlation coefficient values are not generated. Data generated so far prompts to assume that the pest species are now with strong genetic stability irrespective of climate change and/or improvised agronomic practices.
    Źródło:
    World Scientific News; 2020, 146; 255-273
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    Myrmecophilous association between ants and aphids – an overview
    Autorzy:
    Saha, Sumana
    Das, Tanusri
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1109492.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Ants-aphids
    Aphis gossypii
    Myrmecophily
    Rhopalosiphum maidis
    Opis:
    Ant-aphid mutualism is considered as a beneficial, reciprocal and myrmecophilous association. Ants farm aphids, harvesting honeydew or flesh, in return protect the aphids from their natural foe i.e. predators and parasites and perhaps for other benefits like acceleration of aphid’s growth and reproductive rate and in the establishment of aphid colony. And finally aphid could get a pest status. Some of the aphid species are better adapted to profit from the presence of ants than others and benefits are more marked in small populations than in large ones (Saha & Raychaudhuri, 1998). Therefore, it seems essential to know about the interacting ants, their relationship with aphids in any agroecosystem for a better management strategy. The present paper attempts to document the aphids and aphidocolous ants against different host plants. Our investigation during August, 2017 – July, 2018 results a total of 40 aphid infested host plants along with 7 species of aphidocolous ants. Out of 10 aphid species recorded Aphis gossypii (Glover) is tended by more no. of ant species (5) followed by Rhopalosiphum maidis (Fitch) by four (4) species of ants. Aphidocolous ants demand serious attention as their attendance promotes aphids to reach pest status as well as ant populations need a check so that they may take care of fewer aphid individuals.
    Źródło:
    World News of Natural Sciences; 2018, 20; 62-77
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    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:
    Five new click beetles of Melanoxanthus Eschscholtz (Elateridae: Elaterinae) from Buxa Tiger Reserve, West Bengal, India
    Autorzy:
    Sarkar, Sutirtha
    Saha, Sumana
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1191775.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Elateridae
    Elaterinae
    Melanoxanthus
    New species
    Buxa Tiger Reserve
    West Bengal
    India
    Opis:
    Five elaterid species compose the genus Melanoxanthus Eschscholtz, of Buxa Tiger Reserve, India. All are considered as new to science and accordingly described. Each of the species are suitably illustrated supplemented by digital images. A key to the recorded species is also provided.
    Źródło:
    World Scientific News; 2016, 50; 1-19
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diversity Spectrum of Spider Fauna in Backyard Rice Agroecosystem, Narendrapur, West Bengal, India
    Autorzy:
    Saha, Sumana
    Bhadra, Ampita
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1031819.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Diversity spectrum
    West Bengal
    parganas
    rice agroecosystem
    south 24
    spider
    Opis:
    A survey of spiders associated with the rice agroecosystem in Ramakrishna Mission Ashrama Campus, Narendrapur, South 24, Parganas, India results a total of 17 species under 16 genera distributed over 7 spider families in kharif crop season during August 2019 – November 2019. Of these, two species Rhene decorata Tikader and Thomisus sikkimensis Tikader are recognised as endemic to India. Runcinia insecta (L. Koch) is recorded for the first time from West Bengal and Camaricus formosus Thorell, Cyclosa spirifera Simon and Neoscona theisi (Walckenaer) recorded first time from rice field of West Bengal. Total number of spiders per sample is maximum in the maturity stage of paddy when pests attain their peak. Spiders are collected from diverse habitats within the paddy field, viz. crop canopy, border weeds and in the flood water. Among spiders family Salticidae is the most dominant group. Analysis of their zoogeographical distribution reveals that the fauna apart from being Oriental also includes some Ethiopian (17.65%), Australian, Neotropical and Palaearctic (each 11.76%) and Nearctic (5.88%) elements. The dominant guild is constituted by the Ambushers (7.44%) followed by Ground Runners (6.37%) and Orb Web Weavers (3.19%). Ranking sequence of most abundant four species are [in descending order]: Oxyopes shweta (Tikader) (34.72%) > Plexippus paykullii (Audouin) (13.89%) > Camaricus formosus (Thorell) (12.50%) > Rhene decorata Tikader (9.72%). Sex ratio (♀ : ♂) is around 11 : 1. Availability of food/season and/or cannibalism may be the factors for female dominated society. This work aims to generate data-base on the diversity spectrum of spiders in the rice agroecosystem along the growth period of the rice plants and to propose definite management plan for limiting pesticidal load.
    Źródło:
    World Scientific News; 2020, 147; 61-75
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anecdote of spiders and their model ants of Bibhutibhusan Wildlife Sanctuary, N-24 Parganas, West Bengal
    Autorzy:
    Saha, Sumana
    Roy, Tamoghna
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1066284.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Bibhutibhusan Wildlife Sanctuary
    Mimicry
    Model Ants
    Myrmecomorphy
    Salticid Spiders
    West Bengal
    Opis:
    Our study on ant diversity of Bibhutibhusan Wildlife Sanctuary, N-24 Parganas, West Bengal during the period, August 2017-July 2018, unfolded wonderful Batesian and Wasmannian mimicry (chemical mimicry) between model ants Tetraponera rufonigra (Jerdon) and its sibling T. allaborans (Walker), Oceophylla smaragdina (Fabricius) and salticid spiders of the genus Myrmarachne Macleay. Siblings of Myrmarachne encountered are M. plataleoides O. P. Cambridge, M. maratha Tikader and M. orientales Tikader. It is supposed that chemical or Wasmannian mimicry enables species with ant-like pheromones to live in close contact with ants. The members of spider Myrmarachne that resemble the aggresive weaver ant Oceophylla smaragdina, with which they live in close contact, also show chemical resemblance. Further, by mimicking the ants they gain protection from predators. Since weaver ants have a painful bite and also taste bad, this strategy appears to be successful. Though these spiders mimic the weaver ants very well, they are known to stay away from them. They weave a thin web on the leaves, hide under their webbing and ambush their prey. Present communication attempts to discuss the morphological and structural similarities between the mimics and their models. It is worthwhile to mention that such a mimicry is reported for the first time from this part of the country.
    Źródło:
    World Scientific News; 2019, 130; 181-194
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Faunistic Record of Click Beetles (Elateridae: Coleoptera) from Tea Gardens of Darjeeling, West Bengal, India
    Autorzy:
    Sarkar, Sutirtha
    Saha, Sumana
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1193617.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Aeoloderma brachmana
    Agrypnus costicollis
    Cardiophorus flexus
    Click beetle
    Conoderus longipenis
    Darjeeling
    Horistonotus spatulatus
    Melanotus bifoveatus
    Melanotus cribriventris
    Melanotus fuscus
    Melanotus kumaunensis
    Phorocardius moorii
    Tea Garden
    West Bengal
    Opis:
    Eleven species are recorded from six tea gardens of Darjeeling namely Badamtam T.E., Ging T.E., Happy valley T.E., Namring T.E., Selimhill T.E. and Thurbo T.E. of Darjeeling. Out of these six are recorded for the first time from Darjeeling. It is to mention that one species of Melanotus Eschscholtz is considered as new to science.
    Źródło:
    World Scientific News; 2017, 71; 57-69
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Click beetle diversity of Buxa Tiger Reserve, West Bengal, India
    Autorzy:
    Sarkar, Sutirtha
    Saha, Sumana
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1193953.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Buxa Tiger Reserve
    Cardiophorus ferruginosus
    Diversity
    Heteroderes sericeus
    West Bengal
    click beetles
    Opis:
    The present study unfolds the diversity of click beetles of Buxa Tiger Reserve (BTR). A total of 34 elaterid species under 12 genera distributed over 7 subfamilies could be recorded. The forest appears to be a scaled down West Bengal as the area represents 1/2, 1/3rd and 1/5th of the elaterid taxa (subfamilies/genera/species). Out of 34 species 13 are considered new to science, while 11 to West Bengal and 9 to Buxa Tiger Reserve. The fauna shows high degree of endemism. These beetles are mainly found during premonsoon (88.88%).The fauna is largely Oriental. Heteroderes sericeus Candeze is the most abundant species (45%), followed by Cardiophorus ferruginosus sp. nov. (15%). Seventeen species are singletons while 15 species are represented by only two to seven individuals. Find of more number of males suggests more of their response to sex pheromones and dispersal ability.
    Źródło:
    World Scientific News; 2015, 19; 84-96
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Site and spectral hue determine landing of alate aphids for invasion to winter crops/flowering plants
    Autorzy:
    Saha, Sumana
    Dasgupta, Sayanty
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1165920.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Migratory aphids
    invasive species to crops
    preference of colour spectrum
    water pan trap
    Opis:
    Alatae of seven aphid species viz., Aphis gossypii Glover, Lipaphis erysimi (Kaltenbach), Macrosiphoniella sanborni (Gillette), Myzus persicae (Sulzer), Neomyzus circumflexus (Buckton), Pentalonia nigronervosa (Coquerel) & Rhopalosiphum maidis (Fitch) are sampled during August, 2017 – March, 2018 using yellow, green and red water pan traps placed at Narendrapur and Dumdum, Kolkata. Total no. of species and alate individuals are found to vary between sites and trap colour. Yellow is found to be the most preferred colour (no. of alatae: 1080). Among the seven species trapped, Aphis gossypii alatae dominate over rest of the species. All the seven species are supposed to be invasive ones to crops. From late September alate aphids initiate migration from subtropical regions to plains and continue till March. It is felt that early sowing of the winter crop/flowering plants may avoid pest aphid incidence.
    Źródło:
    World Scientific News; 2018, 106; 12-23
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessing Diversity and Abundance of Soil Microarthropods in Three Discrete Plots of Ramakrishna Mission Vivekananda Ashrama, Narendrapur, South 24 Parganas, West Bengal, India
    Autorzy:
    Saha, Sumana
    Sarkar, Mithun
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1031552.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Biodiversity
    Narendrapur
    RKM Ashrama Campus
    Soil Microarthropods
    South 24 Parganas
    Opis:
    This paper is a study of diversity and seasonal abundance of soil inhabiting arthropod fauna and their interrelationships with the edaphic factors like temperature, moisture and pH in flower garden, vegetable garden and uncultivated area dominated by weeds in Ramakrishna Mission Ashrama Campus, Narendrapur, South - 24 Parganas, West Bengal. The soil arthropods were collected with the help of Berlese-Tullgren funnels. Altogether, 591 arthropods belonging to 7 different groups viz., Acarina, Arachnida, Collembola, Coleoptera, Diptera, Hymenoptera and Psocoptera were extracted from each of the three plots every month during the entire survey period (August 2018 – July 2019). Microarthropod abundance was found to be greater in uncultivated areas (266 individuals) as compared to that of the flower and vegetable gardens where different agronomic practices are adopted and traditional means of garden nurturing viz. tilling, raking, weeding, etc. are followed. Of the total population in all three plots, mites were the most dominant group (37.06%), followed by ants (25.21%) & springtail (19.29%) populations. Soil arthropods populations are greater in the monsoon season (227 individuals), followed by premonsoon (188 individuals) & postmonsoon (176 individuals).
    Źródło:
    World News of Natural Sciences; 2020, 31; 58-69
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spiders: A Proficient Candidate in Practising IPM for Darjeeling Tea
    Autorzy:
    Raychaudhuri, Dinendra
    Saha, Sumana
    Roy, Tapan Kumar
    Powiązania:
    https://bibliotekanauki.pl/articles/1193038.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Darjeeling
    India
    Spider fauna
    West Bengal
    diversity
    tea system
    Opis:
    Effect of pesticides in the crop fields is now well known. Tea is no exception to this. Idea behind the present study is to appreciate the biological potential of spiders against tea pests. The study area included 6 tea estates viz. Badamtam T.E., Ging T.E., Salim Hill T.E. (organic), Castleton T.E., Namring T.E., and Thurbo T.E. (conventional). Altogether 85 species under 52 genera distributed over 18 families could be recorded. These can broadly be categorized into 7 trophic groups. The decreasing order of the groups are Orb weavers (48.24%) > Ambushers (22.35%) > Ground dwellers (11.76%) ≥ Stalkers (11.76%) > Foliage hunters (9.41%) > Sheet web weavers (2.35%) > Space web builders (1.18%). Out of the total species encountered 4 species are new from the country, 2 from the state and 36 species from the study area. Based on the species richness, the decreasing order of the tea estates are BTE (61.18%) ˃ NTE (54.12%) ˃ GTE (51.76%) ˃ STE (42.35%) ˃ CTE (28.24%) ˃ TTE (25.88%). This leads to infer ‘organic tea system’ exhibits higher spider heterogeneity. Araneids and salticids are the dominant groups. Other than the Oriental representatives, Australian and Palaearctic are the next major groups. Nearly 32.94% of the species are found to be endemic.
    Źródło:
    World Scientific News; 2016, 38; 1-59
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the Araneid Fauna (Araneae: Araneidae) of the Tea Estates of Dooars, West Bengal, India
    Autorzy:
    Roy, Tapan Kumar
    Saha, Sumana
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1178708.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Araneidae
    Dooars
    New Male Morphs
    New Records
    New Species
    Tea Estates
    West Bengal
    Opis:
    The present study is devoted to 32 araneid species under 14 genera recorded from the tea estates of Dooars, West Bengal, India. Of these, Cyrtophora bituberculata is considered new to science; while Acusilas coccineus Simon, 1895 is the first record from the country. Hither to unknown male morphs of Cyclosa moonduensis Tikader, 1963 and C. simoni Tikader, 1982 are also reported. Cyclosa krusa Barrion & Litsinger, 1995 though reported from India by Saha et al., 2016, lacks detail description of the Indian representatives. All the species considered new in some way or other are described and suitably illustrated. The recorded genera and species are suitably keyed together with relevant illustrations.
    Źródło:
    World Scientific News; 2017, 67, 1; 1-67
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the Mimela Kirby, 1823 (Rutelinae: Scarabaeidae) of Buxa Tiger Reserve (a forest under biodiversity hot spot zone), Dooars, West Bengal, India
    Autorzy:
    Sarkar, Subhankar Kumar
    Saha, Sumana
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1191974.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Mimela
    Buxa Tiger Reserve
    Dooars
    India
    Redescription
    Opis:
    Taxonomic account of Mimela Kirby, 1823 fauna included within the subfamily Rutelinae recorded from Buxa Tiger Reserve, Dooars, West Bengal, India are dealt herewith. Long term faunistic survey by the authors resulted in the present outcome. Each of the species is redescribed and illustrated, supplemented by digital images. For easy identification of the species, a key has also been provided.
    Źródło:
    World Scientific News; 2016, 50; 95-105
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anomala Samouelle, 1819 (Rutelinae: Scarabaeidae) of Buxa Tiger Reserve, Dooars, West Bengal, India. Part – I
    Autorzy:
    Sarkar, Subhankar Kumar
    Saha, Sumana
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1182810.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Anomala
    Buxa Tiger Reserve
    Distribution
    Dooars
    India
    Redescription
    Rutelinae
    Scarabaeidae
    Opis:
    Taxonomy of Anomala Samouelle, 1819 recorded from Buxa Tiger Reserve, Dooars, West Bengal, India is dealt herewith. Present discourse is the result of long term investigation on insect fauna of the study area carried out by the authors. The current paper presents the detailed taxonomic account of 10 species while rest of the species will be presented in the succeeding issue. Each of the species is redescribed and illustrated, supplemented by digital images. Further, an identification key and a note on the distribution of the recorded taxa is also provided.
    Źródło:
    World Scientific News; 2017, 65; 94-122
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Treatise on the Jumping Spiders (Araneae: Salticidae) of Tea Ecosystem of Dooars, West Bengal, India
    Autorzy:
    Roy, Tapan Kumar
    Saha, Sumana
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1182912.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Dooars
    New taxa
    Salticidae
    Tea Estates
    West Bengal
    Opis:
    The present study is devoted to 23 salticids under 20 genera recorded from the tea estates of Dooars, West Bengal, India. Of these, Cheliceroides brevipalpis is considered as new to science; Cocalus murinus Simon, 1899 and Phaeacius fimbriatus Simon, 1900 are new from India. The former two genera are the first records from the country. While providing diagnosis of the newly recorded genera, description and necessary illustrations of the new species are also provided. Recorded genera and species are suitably keyed together with relevant illustrations. Lyssomanes sikkimensis Tikader, 1967 is considered as the junior synonym of Telamonia festiva Thorell, 1887.
    Źródło:
    World Scientific News; 2016, 53, 1; 1-66
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spider Fauna of Meghalaya, India
    Autorzy:
    Roy, Tapan Kumar
    Saha, Sumana
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1193620.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Araneidae
    Camaricus
    Endemicity
    Linyphiidae
    Meghalaya
    New Records
    Nongkhylem Wildlife Sanctuary
    Pisauridae
    Sohra; Umsning
    Sparassidae
    Spiders
    Tea Ecosystem
    Tetragnatha
    Tetragnathidae
    Theridiidae
    Thomisidae
    Thomisus
    Tylorida
    Opis:
    The present study is on the spider fauna of Nongkhylem Wildlife Sanctuary (NWS), Sohra (Cherrapunji) [included within East Khasi Hill District], Umsning (Ri Bhoi District) and their surrounding tea estates (Anderson Tea Estate, Byrnihat Tea Estate and Meg Tea Estate) of Meghalaya, India. A total of 55 species belonging to 36 genera and 13 families are sampled. Newly recorded taxa include four genera and 11 species of Araneidae, six genera of Araneidae, each represented by single species. The species recorded under Tylorida Simon and Tetragnatha Latreille of Tetragnathidae and Camaricus Thorell and Thomisus Walckenaer of Thomisidae are found to be new from the state. Also, three oxyopids and one miagrammopid are new. So far, Linyphiidae, Pisauridae, Sparassidae and Theridiidae were unknown from the state. Out of 55 species, 13 are endemic to India and thus exhibiting a high endemicity (23.6%). A family key of the State Fauna is provided along with relevant images of the newly recorded species.
    Źródło:
    World Scientific News; 2017, 71; 78-104
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anomala Samouelle, 1819 (Rutelinae: Scarabaeidae) of Buxa Tiger Reserve, Dooars, West Bengal, India. Part – II
    Autorzy:
    Sarkar, Subhankar Kumar
    Saha, Sumana
    Raychaudhuri, Dinendra
    Powiązania:
    https://bibliotekanauki.pl/articles/1075727.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Anomala
    Buxa Tiger Reserve
    Dooars
    India
    Redescription
    Rutelinae
    Scarabaeidae
    Opis:
    In continuation to Part-I of the discourse, detailed taxonomic account of the remaining 10 species of Anomala Samouelle, 1819 out of the total 20 species recorded from Buxa Tiger Reserve is presented herewith. An identification key of all the species dealt in both Part I & Part II is provided in Part-I. Each of the 10 species dealt in this paper is redescribed, illustrated and supplemented by digital images. A note on the distribution of the recorded taxa is also provided.
    Źródło:
    World Scientific News; 2019, 118; 17-42
    2392-2192
    Pojawia się w:
    World Scientific News
    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
    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:
    A new name for Clubiona serrata Dhali, Roy, Saha et Raychaudhuri, 2016 (Araneae: Clubionidae)
    Autorzy:
    Dhali, Dhruba Chandra
    Roy, Tapan Kumar
    Saha, Sumana
    Raychaudhuri, Dinendra Raychaudhuri
    Powiązania:
    https://bibliotekanauki.pl/articles/1188104.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Sac spider
    Clubionidae
    Clubiona hexadentata nom.nov.
    C. serrata
    Opis:
    New name Clubiona hexadentata nom. nov. is proposed in place of the sac spider species C. serrata Dhali et al.
    Źródło:
    World Scientific News; 2016, 56; 263-266
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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