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Wyszukujesz frazę "Ghosh, Srinjana" wg kryterium: Autor


Wyświetlanie 1-6 z 6
Tytuł:
Documentation on the visiting profile of Quaker and Lime Blue to their native host plants as pollinating agents
Autorzy:
Ghosh, Srinjana
Saha, Sumana
Powiązania:
https://bibliotekanauki.pl/articles/1193616.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
bioindicators
butterflies
conservation
lycaenids
pollinators
wildflowers
Opis:
The native host plants bearing wildflowers with overlapping blooming periods provide resource for the butterflies, the significant pollinators next to bees. Few of the behavioural features of these diurnal pollinators are co adapted to the phenology as well as fragrance chemistry or floral morphologies of their host plants establishing an ecological specialization state often maintained by stabilizing selection. Such specialization may lead to the considerable variation among reproductive success rates of the host plants. Thus, species specific pollinating attributes over the seasonal continuum of the pollinators towards their common host plants may provide idea about their pollinating potentiality. Lycaenids, with 443 Indian species, are commonly termed as ‘blues’. Two representative species, the Quaker and Lime Blue are selected on the basis of their moderate to high abundance level in the study area. Few of their prominent ecological and ethological features concerned to their host plant visiting patterns are reported. The present study is important for highlighting the role of native pollinators to maintain the regional to landscape level floral diversity. The significance of conservation of such global bioindicators also cannot be neglected.
Źródło:
World Scientific News; 2017, 71; 43-56
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Host plant based ecobiological attributes of a mimetic set of Nymphalids from Taki, North 24 Parganas, West Bengal: A comparative documentation
Autorzy:
Ghosh, Srinjana
Saha, Sumana
Powiązania:
https://bibliotekanauki.pl/articles/1075663.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Batesian mimicry
Conservation
Eco biology
Nymphalids
Pollinators
Opis:
Nymphalids, the largest lepidopteran family, is represented by altogether 19 species (37% of the total species abundance) from the present study site Taki, West Bengal, India, with multiple habitat profiles exposed to different anthropogenic interventions. Nymphalidae is reported to be with highest occurrence of mimicry, a naturally selected survival tool for lepidopterans. A nymphalid set, including a model [Plain Tiger: Danaus chrysippus (Linnaeus, 1758)] and a mimic component [Danaid Eggfly ♀: Hypolimnus misippus (Linnaeus, 1764)] is selected for studying the specific ecological and functional correlation among them in their natural habitat. Their comparative seasonal and habitat wise distribution shows co-existence, the unpalatable model species outnumbering the mimic, the vulnerable target, corresponding to the Batesian mimicry. The wing morphology pattern is significantly shared, though the larval and adult host plants are exclusive and species specific. The year long field observation indicates the existence of considerable degree of similarity with respect to the ecobiological details, like flight pattern, mudpuddling, resting, basking and alternative resource utilisation activities. Species specific unique foraging attributes is observed. Being potential pollinators, they play key role to maintain the wild floral diversity at landscape level. The study bears conservation value towards these nature’s artwork, acting as the biotope indicator.
Źródło:
World Scientific News; 2019, 119; 1-26
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal diversity of butterflies with reference to habitat heterogeneity, larval host plants and nectar plants at Taki, North 24 Parganas, West Bengal, India
Autorzy:
Ghosh, Srinjana
Saha, Sumana
Powiązania:
https://bibliotekanauki.pl/articles/1192057.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Butterfly diversity
habitat heterogeneity
larval host plants
nectar plants
Taki
West Bengal
India
Opis:
Understanding the significance of butterflies in an ecosystem as an environmental healthy indicator and pollination of flowering plants is crucial to achieve sustainability and conservation of floral diversity. The aim of the study is to investigate the butterfly species diversity and abundance and compare the relationship between physical factors and butterfly species at Taki, North 24 Parganas. Survey of six habitats, each containing specific ecological and socio economic profile was conducted. Diversity varies among habitats. Seasonal parameters also play vital roles as the distribution factors for local butterflies. A checklist is made comprising a total of 51 butterfly species belonging to 5 families. Sixty eight species of plants belonging to 28 families served as the larval host plants and 36 species of plants belonging to 20 families served as the nectar plants for butterflies. Maximum number of individuals found at SC (Surrounding College, College Ground, College Hostel Ground) site. The highest species richness and abundance are reported during the post monsoon. The abundance pattern is correlated to the foliage and nutritional support provided by the host plants, both at developmental and at adult stages. Nymphalidae is the most dominant family with 37% of the total number of species.
Źródło:
World Scientific News; 2016, 50; 197-238
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mimetic Relationships of Butterflies, Commonly Found at Taki, North 24 Parganas, West Bengal
Autorzy:
Ghosh, Srinjana
Saha, Sumana
Powiązania:
https://bibliotekanauki.pl/articles/1192159.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Butterfly
Mimetic relationships
Host and Nectar plants
Conservation
Taki
Opis:
Coloration and mimicry are the naturally selected survival tools for lepidopterans, both in larval and adult life either playing the protective or aggressive or advertising or cryptic or camouflaging mechanisms. Besides being nature’s priceless artwork, butterflies are one of the most beneficial terrestrial insects, playing a major role as pollinators and an essential component of commercial agriculture, horticulture, wild plant and animal diversity. They also play role as bioindicators. The natural distribution of butterfly populations in any local habitat is primarily defined by the distribution of their nectar plants and larval host plants as there exist species specific relationships among the host and nectar plants and the dependant butterflies. Also there exist specific ecological and functional correlation among the mimetic forms (the models and mimics and the individual members of a mimicry-complex or Mullerian ring) found in any particular habitat. The present study is focussed on observation, documentation and analysis of mimetic butterflies commonly found at Taki, North 24 Parganas; availability and prominence of mimicking sets, their intra- and interfamily relationships, reporting about their larval host plants and nectar plants. The study also has an importance from conservation approach.
Źródło:
World Scientific News; 2016, 45, 2; 292-306
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abundance and diversity profile of invertebrate macro benthic faunal components in a coastal ecosystem of Eastern India
Autorzy:
Ghosh, Srinjana
Rupendu, Ray
Chowdhury, Suchandra
Powiązania:
https://bibliotekanauki.pl/articles/1177469.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Anthropogenic interactions
Bioindicator
Coastal biodiversity
Conservation
Marine invertebrate fauna
Tourism
Urbanizing parameters
Opis:
The Chandipore beach, situated in Balasore district, Odisha, 21°28΄N 87°01΄E / 21.47°N and 87.02°E shows an interesting nature of wave action as the water recedes up to an average of 5 kilometres during the ebb and tide, resulting in a vast, dynamic array of coastal biodiversity. It gets exposed to a huge tourism load every year and is faced with multidimensional anthropogenic interactions manifested through a varying gradient of urbanizing parameters like cattle grazing, automobile exhaust, constructions in vicinity of beach area, sewage and solid disposals etc. Present piece of work aims at documenting the premonsoon abundance and diversity of marine invertebrate fauna in this eastern Indian sea beach. Adamsia palliata, Carcinoscorpius rotundicauda, Diogenes rectimanus, Sabella sp., Astropecten mauritianas were found to be few of the prominent faunal representatives. Significant differences in respect of species richness have been observed among different selected ecozones through the coastal landscape based on tidal activity and anthropogenic exposure (F5.73, p ≤ 0.05). Such type of field-based observations leads to the scope of further estimation of the ecological status of these native organisms, their intra and inter-specific associations and functional contributions to coastal landscape playing role as a potential bioindicator, which may in turn become instrumental in frame working the future conservation scheme of these natural assets.
Źródło:
World Scientific News; 2018, 102; 59-75
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Habitat preference and resource utilization of avifauna in Kuldiha Wildlife Sanctuary, Odisha, India: Role of eco-ethological gradients
Autorzy:
Ghosh, Srinjana
Paria, Santu
Mardaraj, Prakash Chandra
Chakraborty, Susanta Kumar
Powiązania:
https://bibliotekanauki.pl/articles/1177424.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Avifaunal diversity
Conservation
Foraging guilds
Kuldiha Wildlife Sanctuary (KWS)
Tropical deciduous forest
Opis:
The present study has attempted to highlight the avifaunal diversity in two contrasting seasons (pre and post monsoons) from a protected tropical mixed deciduous forest (Kuldiha Wildlife Sanctuary, KWS) in the state of Odisha, India. Through modified line transect method, a total of 107 species of birds belonging to 49 families under 15 orders have been reported. Among them, 12 are winter visitors, 3 are summer visitors, 1 is near threatened and 1 is vulnerable species. Insectivores and frugivores constitute major foraging guilds. Closed canopy forests, forest edges, woodland areas and wetlands provide suitable habitats to all those avifauna. Lower canopy level was found to act as the major microhabitat for several species for meeting major ecobiological attributes of avifauna. The pre-monsoon and monsoon periods have appeared to be the ideal nesting seasons for most of the avian members. Canopy foliage and tree holes were seen to offer the most suitable nesting sites. Significant differences in respect of species richness have been observed among different habitats in different seasons (F5.91 ,p ≤ 0 in premonsoon, F6.53, p ≤ 0 in post monsoon). The highest Shannon Weiner diversity index (H′) was recorded from the forest edge (3.8) during premonsoon and that of lowest in orchard or plantation areas (2.96) during post monsoon. Species Dominance value (D) was observed to be highest both for grassland and orchards and plantation areas (0.06). The field based study attempts to assess avian diversity (qualitative and quantitative) in the light of global conservation programme. Though this area is prone to varying levels of anthropogenic interventions particularly the tourism activities, an overall healthy bird diversity has been found to exist, the knowledge on which is expected to be utilized for the holistic eco-management of forest ecosystem in general and Kuldiha wildlife sanctuary in particular. A number of hypothesis have been proposed in respect of avifaunal habitat selection, diversity and acclimation with wildlife friendly human association for their successful coexistence.
Źródło:
World Scientific News; 2018, 103; 32-64
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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