Habitat degradation

The species of this family are facing tremendous pressure due to habitat degradation, overexploitation and changing environmental conditions. Therefore, while exploring the floristic diversity of NUPA, attempts were made to explore the orchid diversity, distribution patterns, nativity, endemism, threat categories, and local uses.

6p vilarry 01-04-2024 7 1   Download

Part 2 book "Ecology of diseases transmitted by mosquitoes to wildlife" includes content: Consequences of deforestation and habitat degradation on wildlife mosquito-borne diseases, implication of human landscape transformation on mosquito populations, a meta-analytic approach to investigate mosquitoes blood feeding preferences from non-urban to urban environments, surveillance of invasive mosquito species in islands with focus on potential vectors of zoonotic diseases,... and other contents.

140p oursky08 01-11-2023 5 3   Download

The marine biology investigation and research activities in our country since 1990 have made remarkable changes; especially there have been changes in thinking, scale, content, level, research, skills research, and international relations in research. We have proactively overcome the limitation of general, preliminary, and undirected investigation to shift to new thinking about research gradually.

20p vipagani 24-10-2022 7 2   Download

The topography of the Kim Bang Species and Habitat Conservation Area in Ha Nam province includes limestone ranges, interbedded with sandstone hills, schist and narrow valleys. This report is the result of a further investigation into amphibians and reptiles from Kim Bang Species and Habitat Conservation Area in Ha Nam province.

13p vikoenigsegg 26-09-2022 9 2   Download

“Conservation genomics” encompasses the idea that genome-scale data will improve the capacity of resource managers to protect species. Although genetic approaches have long been used in conservation research, it has only recently become tractable to generate genome-wide data at a scale that is useful for conservation.

12p vigalileogalilei 27-02-2022 10 1   Download

There is great variation in the conservation status of the last habitats with long-term natural viable populations of the salmon species Hucho hucho in Maramureş Mountains Nature Park, Eastern Carpathians (Romania). According to the specific guidelines for Natura 2000, 42.11% are in good conservation status, 31.57% are of average status, and 26.32% are in a partially degraded condition.

9p dolomite36 30-12-2021 8 0   Download

Fish communities are important indicators of the health of riverine ecosystems. Fish monitoring for The Living Murray (TLM) initiative, one of Australia’s most ambitious restoration undertakings for the degraded river-floodplain biota of the River Murray system (south-eastern Australia), was carried out annually from 2005 to 2011 across six ‘Icon Sites’, including the habitats and reaches therein. These spatial and temporal components of variation in fish community abundance and composition must be taken explicitly into account for consistent assessment of riverine ecosystem health.

16p dolomite36 30-12-2021 10 0   Download

Isopods constitute a particular group of crustaceans that has successfully colonized all environments including marine, freshwater and terrestrial habitats. Their ability to use various food sources, especially plant biomass, might be one of the reasons of their successful spread.

14p visilicon2711 20-08-2021 10 1   Download

Soil represents one of the most diverse habitats for more than a thousand million bacterial species present on the earth. The maintenance of soil quality, fertility and structure is essential for the protection of the biodiversity and integrity of terrestrial ecosystems. Introduction of anthropogenic chemicals into soil may have lasting effects on soil microbial activities and thus soil health. Chlorpyrifos is a broad spectrum organo phosphorus insecticide, displaying insecticidal activity against a wide range of insects and other arthropod pests.

12p angicungduoc8 07-11-2020 10 1   Download

Petroleum is a complex mixture composed primarily of aliphatics, alicyclics and aromatic hydrocarbons. This study was to evaluate the potentials of native bacterial population of wastewater environment with the ability for bioremediation of petroleum hydrocarbon polluted natural environment. A fresh water ecosystem west of Lagos state university, Ojo campus that has the history of being fed with both domestic wastewater and spent diesel oil served as source of bacterial samples. Serial dilution technique and total heterotrophic bacterial count for the wastewater was evaluated.

13p gaocaolon5 14-06-2020 10 1   Download

Cycads occur in lowland forests and are threatened by their degradation, fragmentation and over-exploitation. Our results indicate that cycad population sizes were very small (less 100 individuals) with high propagules. These increased mating between closely related individuals growing in clumps. The allozyme data show although all studied cycads maintained high levels of genetic diversity, an average of 0.556 (0.491 in C. hoabinhensis to 0.598 in C. chevalieri ), the degree of inbreeding was high.

10p 12120609 01-06-2020 12 1   Download

The textile dye industries consume a substantial amount of water and produce extensive amount of waste which is contaminated by dyes like reactive dyes, azo dyes, many types of aerosols and much more non-degradable waste materials. The toxic effects of dyestuff and other organic compounds from modern effluents are harsh on human beings and also for regular habitat. Currently, most of the available dyes are aromatic and heterocyclic compounds with complex functional groups that can be converted into aromatic amines which are proved to be carcinogenic.

10p trinhthamhodang1213 29-05-2020 15 0   Download

Fifty yeast isolates from different habitats nearby a textile factory in Menoufia governerate, Egypt were screened for their ability to decolorize the azo dyes direct red 81 (DR81) and reactive brilliant red X-3B (RBR). Out of those, twenty two isolates displayed positive results therefore they were characterized morphologically and physiologically. The most active two were identified as Meyerozyma guilliermondii and Naganishia diffluens on the bases of 28S ribosomal RNA sequencing. The bio degradation of the dyes was confirmed by UV-visible spectra and IR analysis.

18p caygaocaolon4 04-04-2020 23 1   Download

The present study was conducted in two districts of Upper Brahmaputra Valley Zone of Assam namely Jorhat and Majuli district in order to assess the socio-economic profile of flood affected farmers, their employment status and perception on flood impacts. A total of 160 farmers were selected from eight villages of two districts by following proportionate cum random sampling techniques. The findings reveal that majority of the respondents were in between 41-59 years of age with education level upto class VII standard and having 4-6 members in their family with average annual income Rs.7,339.

7p trinhthamhodang3 12-02-2020 23 2   Download

Karnali watershed area is very sensitive and need of scientific management of highland grasslands which are rich in number of plants and animal species that have significant role and contribution in national economy and ecology. However, these grass lands are in threat and exist in their natural state within protected areas as neighboring grasslands and forest habitats have been rapidly degraded.

14p nguathienthan1 27-11-2019 18 0   Download

A plant’s microbiota has various implications for the plant’s health and performance; however, the roles of many microbial lineages, particularly Archaea, have not been explored in detail. In the present study, analysis of archaea-specific 16S rRNA gene fragments and shotgun-sequenced metagenomes was combined with visualization techniques to obtain the first insights into the archaeome of a common salad plant, arugula (Eruca sativa Mill.).

10p caygaocaolon1 13-11-2019 10 0   Download

The focus of this study was Cyclamen alpinum (formerly C. trochopteranthum). Habitat fragmentation, environmental degradation, and overharvesting of tubers have exerted pressure on native populations of this valuable ornamental species.

10p vivant2711 01-02-2019 21 1   Download

Out of 70 fungal isolates recovered from soil, wall paints (Latex), and pieces of plastic debris from different habitats in Jordan and plastic shields of street light posts on campus, 35 isolates showed varied potential to degrade polyester-polyurethane (PS-PUR).

7p vivant2711 01-02-2019 17 1   Download

Factors thought to have contributed to the decline of the endangered suckers include degradation of spawning habitat, deterioration in the quality of water in Upper Klamath Lake, overexploitation by commercial and noncommercial fishing (now regulated), introduction of competitive or predaceous exotic species, bloc

28p nunongnuna 05-04-2013 49 4   Download

They find that the elasticity of CO2 emissions and energy are close to unity (i.e., a 1% increase in population leads to an approximately 1% increase in CO2 emissions). They do not estimate how these elasticities may vary with population levels. All of these results are based on cross-sectional data for 1 year only. Finally, Shi (2003), again in the context of the IPAT model, uses a panel of cross-sectional and time series data. Shi finds population elas- ticities for CO2 of between 1.41 and 1.

9p tainhacmienphi 19-02-2013 40 4   Download