Flora

Order of the National Green Tribunal regarding construction of a road in the Kailash Kund-Seoz Dhar region, Bhaderwah, in Doda district of Jammu & Kashmir, …

Order of the National Green Tribunal in the matter of R.D. Singh Bandral Vs Union of India & Others dated 17/04/2023. The matter related to protecting the flora and fauna of the Kailash Kund-Seoz Dhar region by declaring the same as protected area and not to allow construction of the …

Estimating the ability of plants to plastically track temperature-mediated shifts in the spring phenological optimum

One consequence of rising spring temperatures is that the optimum timing of key life-history events may advance. Where this is the case, a population's fate may depend on the degree to which it is able to track a change in the optimum timing either via plasticity or via adaptation. Estimating …

Elevation alters ecosystem properties across temperate treelines globally

Examination of the ecosystem properties of treeline ecotones in seven temperate regions of the world shows that the reduction in temperature with increasing elevation does not affect tree leaf nutrient concentrations, but does reduce ground-layer community-weighted plant nitrogen levels, leading to a strong stoichiometric convergence of ground-layer plant community nitrogen …

Predicting evolution in response to climate change: the example of sprouting probability in three dormancy-prone orchid species

Although many ecological properties of species respond to climate change, their evolutionary responses are poorly understood. Here, we use data from long-term demographic studies to predict evolutionary responses of three herbaceous perennial orchid species, Cypripedium parviflorum, C. candidum and Ophrys sphegodes, to predicted climate changes in the habitats they occupy. …

Retrospective analysis of heavy metal contamination in Rhode Island based on old and new herbarium specimens

Herbarium specimens may provide a record of past environmental conditions, including heavy metal pollution. To explore this potential, we compared concentrations of copper, lead, and zinc in historical and new collections from four sites in Rhode Island, USA. Original Source

Components in aqueous Hibiscus rosa-sinensis flower extract inhibit in vitro melanoma cell growth

Skin cancer is extremely common, and melanoma causes about 80% of skin cancer deaths. In fact, melanoma kills over 50 thousand people around the world each year, and these numbers are rising. Clearly, standard treatments are not effectively treating melanoma, and alternative therapies are needed to address this problem. Hibiscus …

Mapping and profile of Himalayan nettle (Girardinia diversifolia) units in Uttrakhand

A minimum of eight units, in Chamoli and Uttarkashi districts were selected through probability proportional to size sampling technique (PPS) to study the work profile of nettle units in Uttarakhand. Fifty per cent of nettle units were established in the years 2007-2008. It was observed that 72.50 per cent and …

Ecological networks are more sensitive to plant than to animal extinction under climate change

Impacts of climate change on individual species are increasingly well documented, but we lack understanding of how these effects propagate through ecological communities. Here we combine species distribution models with ecological network analyses to test potential impacts of climate change on >700 plant and animal species in pollination and seed-dispersal …

Bastion of biodiversity protected in eastern DRC

The Kabobo Natural Reserve, together with the adjoining Ngandja and Luama Katanga Reserves, protects nearly 7,000 square kilometers of important habitat for biodiversity, watersheds and forests near Lake Tanganyika. The Wildlife Conservation Society said that the involvement of local communities has been critical to protecting the area, and that their …

Climate-related local extinctions are already widespread among plant and animal species

Current climate change may be a major threat to global biodiversity, but the extent of species loss will depend on the details of how species respond to changing climates. For example, if most species can undergo rapid change in their climatic niches, then extinctions may be limited. Numerous studies have …

Growth, distribution and physiochemical properties of wax apple (Syzygium samarangense): A Review

There is increasing concern about the fruit growth, development and quality of wax apple (Syzygium samarangense), a widely cultivated fruit tree in South East Asia. The growth and development of this fruit is sometimes very low due to low photosynthates supply at early growth stages. Growth regulators, hydrogen peroxide and …

Cycling posing threat to flora, fauna in Turahalli forest

Dept working on plan to curb people's entry into reserve forest Social media campaign is underway to educate cyclists on the dos and don'ts while visiting Turahalli and other forest patches. Wildlife conservationists want the state government to protect the Turahalli reserve forest from the influx of eco-tourists, cyclists and …

Climate proofing: Himachal prepares $150 mn plan to manage natural water resources

The state’s Irrigation and Public Health (IPH) has already submitted a detailed concept note to the Centre. Recognising the challenge to its water resources in the face of climate change, Himachal Pradesh has drawn-up a USD 150 million project to manage the state’s stressed water ecology and restore nearly 10,000 …

Recent pause in the growth rate of atmospheric CO2 due to enhanced terrestrial carbon uptake

Terrestrial ecosystems play a significant role in the global carbon cycle and offset a large fraction of anthropogenic CO2 emissions. The terrestrial carbon sink is increasing, yet the mechanisms responsible for its enhancement, and implications for the growth rate of atmospheric CO2, remain unclear. Here using global carbon budget estimates, …

Response of understory vegetation to salvage logging following a high-severity wildfire

Timber is frequently salvage-logged following high-severity stand-replacing wildfire, but the practice is controversial. One concern is that compound disturbances could result in more deleterious impacts than either disturbance individually, with mechanical operations having the potential to set back recovering native species and increase invasion by non-native species. Following the 2002 …

Projected land photosynthesis constrained by changes in the seasonal cycle of atmospheric CO2

Analysis of observations and model projections provides large-scale emergent constraints on the extent of CO2 fertilization, with estimated increases in gross primary productivity for both high-latitude and extratropical ecosystems under elevated atmospheric CO2 concentrations.

The dynamic trend of soil water content in artificial forests on the Loess Plateau, China

Extensive vegetation restoration projects have been widely implemented on the Loess Plateau, China, since 1998. In addition, increasing attention has been paid to the influence of revegetation on soil water. However, the response of the soil water content (SWC) to vegetation construction and management has not been adequately studied. In …

Climate change is advancing spring onset across the U.S. national park system

Many U.S. national parks are already at the extreme warm end of their historical temperature distributions. With rapidly warming conditions, park resource management will be enhanced by information on seasonality of climate that supports adjustments in the timing of activities such as treating invasive species, operating visitor facilities, and scheduling …

Phylogenetic approaches reveal biodiversity threats under climate change

Predicting the consequences of climate change for biodiversity is critical to conservation efforts. Extensive range losses have been predicted for thousands of individual species, but less is known about how climate change might impact whole clades and landscape-scale patterns of biodiversity. Here, we show that climate change scenarios imply significant …

Coastal occupation affects tropical reefs in Brazil

Researchers from the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB), the Federal University of Ceará (UFC) and the Federal University of South of Bahia (UFSB) in Brazil warn of the negative environmental impacts of unplanned coastal occupation on tropical reefs and consequently on the …

Hippopotamus (H. amphibius) diet change indicates herbaceous plant encroachment following megaherbivore population collapse

Megaherbivores (>1000 kg) are critical for ecosystem health and function, but face population collapse and extinction globally. The future of these megaherbivore-impoverished ecosystems is difficult to predict, though many studies have demonstrated increasing representation of C3 woody plants. These studies rely on direct observational data, however, and tools for assessing …

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