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    Wyświetlanie 1-8 z 8
    Tytuł:
    Taxonomic Account of the Genus Nephila (Araneae: Nephilidae) of Bangladesh
    Autorzy:
    Biswas, V.
    Raychaudhuri, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1070848.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Araneae
    Bangladesh
    Nephila
    Nephilidae
    New species
    new record
    Opis:
    Spider genus Nephila Leach was so far unknown from Bangladesh. With the record of N. nandiniae n. sp. and N. pilipes (Fabricius), Nephila of Bangladesh is now known by two (2) species. A key to the species together with the generic diagnosis, illustrated description and distribution of both the species are provided.
    Źródło:
    World Scientific News; 2019, 123; 66-75
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Some characterizations of a two-parameter Xgamma distribution
    Autorzy:
    Shakil, M.
    Ahsanullah, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1031018.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Characterizations
    Order Statistics
    Record Values
    Truncated Moment
    Xgamma distribution
    Opis:
    The objective of this paper is establish some new characterization results of a two-parameter Xgamma distribution. We have first established our proposed characterization results by taking a relation between left truncated moment and failure rate function. Then, we have characterized the two-parameter Xgamma distribution by taking a relation between right truncated moment and reversed failure rate function. Finally, we have characterized it by order statistics and record values.
    Źródło:
    World Scientific News; 2020, 149; 1-22
    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:
    Dolerus (Poodolerus) vulneratus Mocsáry, 1878 (Hymenoptera, Symphyta: Tenthredinidae) – a sawfly species new for the Polish fauna
    Autorzy:
    Borowski, Jerzy
    Plewa, Radosław
    Jaworski, Tomasz
    Hilszczański, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/1182589.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Dolerus vulneratus
    Hymenoptera
    Symphyta
    Tenthredinidae
    faunistic record
    geographical distribution
    new for Polish fauna
    Opis:
    A new species of sawfly, Dolerus (Poodolerus) vulneratus Mocsáry, 1878 for the Polish fauna is presented. Two males and females of this species were collected in Wielkopolska Lowland. It is a first record of this species in the Central Europe.
    Źródło:
    World Scientific News; 2017, 69; 236-238
    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:
    New records of lignicolous fungi from Ratanmahal Wildlife Sanctuary, Gujarat, India
    Autorzy:
    Kumar Nagadesi, P.
    Arya, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/11767.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    new record
    Fomitopsis rosea
    lignicolous species
    Ascomycetes
    Basidiomycetes
    fungi
    Ratanmahal Wildlife Sanctuary
    Gujarat
    India
    Opis:
    Thirty species of lignicolous fungi belonging to Ascomycetes and Basidiomycete are reported from the Ratanmahal Wildlife Sanctuary, Gujarat, India. The new species are Coriolus versicolor, Coriolopsis gallica, Daedalea quercina, F. resupinate, D. unicplor var. hydnoidea, Fomitopsis rosea, Hypodontia comptopsis and Lenzites betulina. F. varigatum is reported for the first time from India. All the species are new to studied area.
    Źródło:
    International Letters of Natural Sciences; 2014, 03
    2300-9675
    Pojawia się w:
    International Letters 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
    Tytuł:
    New records of lignicolous fungi from Krishna District, Andhra Pradesh, India
    Autorzy:
    Nagadesi, P.K.
    Bhavani, J.
    Arya, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/10890.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    new record
    lignicolous fungi
    fungi
    species list
    wood decay
    wood
    wood product
    Krishna district
    Andhra Pradesh state
    India
    Opis:
    Lignicolous fungi include many wood decay fungi. Studies on molds and decay fungi are necessary to enable us to control their growth on wood and wood products. A survey was undertaken during 2012-2013 to detect the various ligniclous fungi in Andhra Loyola College, Vijayawada and Krishna District, Andhra Pradesh. In a recent study, lignicolous fungi were collected from living trees and fallen branches from Andhra Loyola College, Vijayawada, India. On the basis of occurrence Coriolopsis aspera (Junghuhn) Teng. Fulvifomes nilgheriensis (Montagne) Bondartseva & S. Herrera, Ganoderma australe (Fr.) Pat., G. lucidum (Curtis) P. Karsten, Hexagonia apiaria (Pers.) Fr. Phellinus linteus (Berk. & Curt.) Teng. Trametes cingulata Berk. Hook., T. cotonea (Pat. & Har.) Ryv. T. gibbosa (Pers.) Fr. Schizophyllum commune Fr. were reported from Krishna district for the first time. F. nilgheriensis (Montagne) Bondartseva & S. Herrera is recorded for the first time from India. Even though being preliminary, our results point to the necessity of conservation and protection of recent fungal diversity but, in our opinion, not by making so-called “Red list of endangered species", which, due to the lack of information and very poor evidence on this group of organisms in the region under the consideration, are extremely unreliable and therefore disputable, but rather through the very short list of few not endangered species, conditionally called “White list of not endangered fungal species", if such species recently exist at all.
    Źródło:
    International Letters of Natural Sciences; 2014, 12, 1
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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