Analysis of Vertebrate Populations

Ecoagriculture: Strategies to Feed the World and Save Wild Biodiversity

Zinc oxide nanoparticles (ZnO NPs) are one of the prominent metal oxide nanoparticles with significant applications in many industries and research institutes. Various methods of synthesis have been adopted in the production of ZnO NPs so as to meet its high demand. The environmental implications and economic challenges attached to most of the means of ZnO NPs synthesis have resulted in the quest for other alternatives with environmental and economic benefits. Interestingly, the biological method of synthesis using plant sources have been found appropriate for the production of ZnO NPs dues to its numerous health, environmental, economic, and medicinal benefits. The distinctive features of ZnO NPs synthesized using plant extracts enhanced its application in agriculture for the production of fertilizers, pesticides, and fumigants. In the field of medicine and pharmacy, phytosynthesized ZnO NPs have gained remarkable usage in the production of disinfectant, antifungal, anticancer, antioxidant, anti-inflammatory and antidiabetics agents. Despite the enlisted benefits of biosynthesized ZnO NPs, the difficulties associated with the elucidation of formation mechanism and reactions still remain unraveled. This review described the summary of the recent advances in the synthesis, mechanism routes, characterization techniques, and applications of biosynthesized ZnO NPS in agriculture, medicine, and textile industries.

A Review on Green Synthesis of Zinc Oxide Nanoparticles Using Plant Extracts and Its Biomedical Applications

The field of nanotechnology is concerned with the creation and application of materials having a nanoscale spatial dimensioning. Having a considerable surface area to volume ratio, nanoparticles have particularly unique properties. Several chemical and physical strategies have been used to prepare zinc oxide nanoparticles (ZnO-NPs). Still, biological methods using green or natural routes in various underlying substances (e.g., plant extracts, enzymes, and microorganisms) can be more environmentally friendly and cost-effective than chemical and/or physical methods in the long run. ZnO-NPs are now being studied as antibacterial agents in nanoscale and microscale formulations. The purpose of this study is to analyze the prevalent traditional method of generating ZnO-NPs, as well as its harmful side effects, and how it might be addressed utilizing an eco-friendly green approach. The study’s primary focus is on the potential biomedical applications of green synthesized ZnO-NPs. Biocompatibility and biomedical qualities have been improved in green-synthesized ZnO-NPs over their traditionally produced counterparts, making them excellent antibacterial and cancer-fighting drugs. Additionally, these ZnO-NPs are beneficial when combined with the healing processes of wounds and biosensing components to trace small portions of biomarkers linked with various disorders. It has also been discovered that ZnO-NPs can distribute and sense drugs. Green-synthesized ZnO-NPs are compared to traditionally synthesized ones in this review, which shows that they have outstanding potential as a potent biological agent, as well as related hazardous properties.

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Exploring the Journey of Zinc Oxide Nanoparticles (ZnO-NPs) toward Biomedical Applications

Shifts in distribution of herbivorous geese relative to hydrological variation in East Dongting Lake wetland, China.

The present study deals with the species abundance, diversity and species richness of avian communities in the Bangalore University Campus (BUC), Bengaluru, India. One hundred and six species of birds belonging to 42 families under 68 genera were recorded. Shannon–Wiener’s and Fisher’s alpha diversities, species evenness, species richness of bird communities, number of bird species and percentage of population density of birds between various seasons in the BUC differed significantly between the study years. Of these bird species, the relative abundance (6.96 %) and species distribution ratio (0.070) of Psittacula krameri were highest, whereas relative abundance (0.04 %) and species distribution ratio (0.002) of Coracias benghalensis were lowest. The existing 32 species of flowering plants/trees belonging to 29 genera under 14 families in the campus are used for perching by birds. Moreover 29 species of flowering plants/trees belonging to 24 genera under 16 families depend on birds for pollination and/or seed dispersal. Occurrence of greater bird diversity and abundance of avian communities were recorded highest in the winter season in the BUC premises. In the different seasons, the BUC had varying community structure of birds between the study years. BUC suffers from numerous threats namely grass cutting, fire and grazing of domestic animals. Conservation methods needed for habitat management are restoration of vegetation and wetlands, and increase plant and tree diversity to protect the ecosystem of BUC habitat and to preserve its diversity of avifauna.

Seasonal Incidence and Diversity Pattern of Avian Communities in the Bangalore University Campus, India

A study was undertaken to know the abundance, diversity and species richness of bird communities in urban landscapes of Bengaluru region, India. One hundred and eighteen species of birds belonging to 43 families under 78 genera was documented. Of them, Gyps indicus, Neophron percnopterus and Parus nuchalis were critically endangered, endangered, and vulnerable species. Among 19 landscapes, the mean population density (number of birds seen/km2) was highest at Bannerghatta National Park and lowest at Kempegowda Bus Station. Species diversity, species evenness and richness of bird communities were significantly different between landscapes. Seasonal occurrence of bird species was not significantly different. The mean population density of birds was positively correlated with tree density and negatively correlated with canopy coverage, human population density and buildings.

Temporal and spatial avian community composition in urban landscapes of the Bengaluru region, India

Indian Grey Mongoose, Herpestes edwardsii is common throughout the Indian subcontinent. To investigate the abundance of this species, a study was conducted in different urban locations of the Bengaluru, Karnataka State of South India. A significant difference was found among the relative percentage abundance of mongooses in various study locations. The highest abundance of mongoose was recorded from prohibited places, mostly in the rural and suburban regions, and the least in the urban region depending upon the availability of food and protected shelter in the reed beds and thickets of aquatic vegetation, particularly during the breeding season. They usually breed on the ground and need shelter from direct sunrays as well as potential predators during this period. This mongoose species also prefers shelter in the reed beds and thickets of aquatic vegetation and the suburban and rural region for diurnal activities.

Abundance of Indian Grey Mongoose Herpestes Edwardsii (É. Geoffroy Saint-Hilaire, 1818) (Carnivora: Herpestidae) in the Bengaluru Region

Identification of threats contributing to occurrence and range distribution of avifaunal communities is poorly known in diversely urbanized landscapes of the Bengaluru city, south India. For the fi...

Impact of threats on avifaunal communities in diversely urbanized landscapes of the Bengaluru city, south India

Marine environment of India consists of unique ecosystems are known for their aesthetic beauty and provides habitat for numerous biological species. Mangroves are unique ecosystem of tropics and sub-tropics which support naturally diverse groups of aquatic and terrestrial organisms. These ecosystems serves has a haven for many varieties of birds and other fauna. Several Islands of Karnataka is an excellent place to enjoy the seascape, the mangroves with waves wading at their roots, several water birds and the spectacular dusk. Marine organisms have some physical and special adaptations that are unique to their lifestyle. Many species of seabirds spend much of their time in and around the seawater that have special types of behavior. The practice of coastal regions by monitoring of marine flora and fauna is an important topic of study in the coastal zone of Karnataka, India forms a good baseline work for the assessment of human–animal interactions. The comprehensive catalogues can be prepared separately for the marine flora and the fauna in order to recognize priority areas for maintenance in the coastal and noncoastal regions of Karnataka, India.

http://nopr.niscair.res.in/bitstream/123456789/43460/1/IJMS%2047%281%29%207-14.pdf

S. Rajashekara

Papers

Seasonal Incidence and Diversity Pattern of Avian Communities in the Bangalore University Campus, India

Temporal and spatial avian community composition in urban landscapes of the Bengaluru region, India

Abundance of Indian Grey Mongoose Herpestes Edwardsii (É. Geoffroy Saint-Hilaire, 1818) (Carnivora: Herpestidae) in the Bengaluru Region

Impact of threats on avifaunal communities in diversely urbanized landscapes of the Bengaluru city, south India

Need for monitoring and conservation of marine floral and faunal biodiversity in the coastal region of Karnataka, India