Climate‐driven decline in the habitat of the endemic spiny babbler (Turdoides nipalensis)

Ecosphere, Journal Year: 2023, Volume and Issue: 14(6)

Published: June 1, 2023

Abstract Climate change could amplify the extinction risk of endemic species, and is even greater for species occupying high elevations mountain ranges. In this study, we assessed climatically suitable habitat only Nepalese bird spiny babbler ( Turdoides nipalensis ), predicted extent future (2050 2070) under two climate scenarios (SSP2‐4.5 SSP5‐8.5). We used georeferenced occurrence points alongside ecologically meaningful climatic topographic variables to develop an ensemble model using different distribution modeling algorithms in BIOMOD2. identified 22,488.83 km 2 (15%) Nepal's total land area as where nonprotected regions incorporated largest (88%), with a majority within central Mid‐Hill region. Under SSP2‐4.5 scenario, 21.58% 34.08% current range are projected be lost by 2050 2070, respectively. Whereas SSP5‐8.5 our projections suggest that 40.45% 52.18% will Habitat suitability increased rise warmest quarter precipitation (above 1000 mm), coldest between 50 100 mm, temperature 20 30°C. Given results, it crucial review conservation policy areas formulate babbler‐specific action plan special focus on protecting their primary human‐dominated landscapes areas.

Language: Английский

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Decades of leopard coexistence in the Himalayas driven by ecological dynamics, not climate change

Global Ecology and Conservation, Journal Year: 2025, Volume and Issue: 57, P. e03401 - e03401

Published: Jan. 1, 2025

Language: Английский

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Differential vulnerability of key threatened mammals to climate and land cover changes in the Central Himalayas

Ecosphere, Journal Year: 2025, Volume and Issue: 16(4)

Published: April 1, 2025

Abstract Anthropogenic climate change affects biological diversity by altering their suitable habitat ranges. The Himalayan region is one of the world's most sensitive biodiversity hotspots to global change. Chitwan Annapurna Landscape (CHAL) in central Himalayas serves as a vital north–south linkage among protected areas Nepal and provides habitats for threatened mammals different ecological zones, such snow leopards (in alpine zone), red panda temperate one‐horned rhinoceros lowland tropical zone). CHAL land use alterations. This study assessed potential impacts cover changes on above three key employing maximum entropy (MaxEnt) modeling predict current project it future scenarios under greenhouse gas concentrations. Further, we used cellular automata Markov Chain models simulate temporal spatial CHAL. Our results indicate that leopard will experience more significant vulnerability than all scenarios. Approximately 36.3% 41.8% 32.5% 56% are projected be lost 2050 2070, respectively, representative concentration pathway (RCP6.0). Climate refugia, representing 2070 (under RCP6.0) CHAL, 958 km 2 (80.37% range), 1052 (43.73% 2375 (58.21% range) rhinoceros, panda, leopard, respectively. Among attributes predicted decrease 24% 2070. findings species inhabiting environments susceptible human‐induced those areas. These help implement adaptation actions crucial addressing conservation challenges arising from

Language: Английский

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Ecological dynamics, ethnobotanical significance, and habitat projections for Arisaema costatum (Wall.) Mart. in response to climate change in Nepal

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 50, P. e02829 - e02829

Published: Feb. 2, 2024

The unique landscape of Nepal supports diverse ecological niches that are home to valuable plants, benefiting various ethnic groups. Wild edible plants have been essential for the livelihoods indigenous peoples and local communities due their affordability, ease harvest, renewable nature. However, climate change is altering habitat, distribution, ecology, phenology plant species in Himalayas. One such important Arisaema costatum, which has multiple uses. Unfortunately, change, deforestation land use changes led continuous distribution habitats A. costatum. We conducted field research involving 280 quadrats (2×2 meters) 210 interviews. By utilizing MaxEnt modeling considering different scenarios (Shared Socioeconomic Pathways 4.5 8.5) as well climatic predictors localities, we analyzed 196 geospatial data points. This allowed us evaluate present suitable environment predict potential 2050 2070. Our findings revealed costatum used a vegetable by Traditional fermentation detoxification techniques employed its preparation. plays vital role household food nutrition, income generation, health security. Elevation, annual mean temperature (BIO-1), precipitation during warmest coldest quarters (BIO-18 BIO-19) were identified most influential factors projecting future Approximately 14% (21121.75 km2) Nepal's was found be habitat this species, with Gandaki, Bagmati, Koshi provinces temperate regions particularly well-suited compared other provinces. Highly areas expected gradually decrease from 0.14% 1.65% Thus, anticipated loss increasing temperatures Himalayas, urgent integrated development programs necessary address issue.

Language: Английский

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Leopard occupancy correlates with tiger and prey occurrences in the Parsa‐Koshi Complex, Nepal

Journal of Zoology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Abstract Large carnivores such as leopards ( Panthera pardus ) experience continuing threats from habitat loss and fragmentation, depletion of prey populations, retaliatory killing following conflicts with humans. We aimed to identify factors affecting leopard occupancy temporal overlap between tigers P. tigris ), their major prey, human activities in the Parsa‐Koshi Complex (PKC), Nepal. deployed 154 cameras for 21 days each along wildlife trails throughout PKC during December 2022–March 2023. found low (0.17 ± 0.04) PKC, greater rates within protected areas, particularly Parsa National Park its buffer zone. Human (63.10 23) livestock (36.46 102) detections were higher across PKC. Leopard was positively associated presence prey. Temporal moderately high tigers, well Our research suggests that coexistence is likely largely facilitated by availability, which may reduce competition. Further, we demonstrate maintaining forest cohesion can improve leopards. Intensifying use agricultural areas could fragmentation increase overall, turn reducing depredation improving leopard‐human co‐existence conservation.

Language: Английский

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Ecological Dynamics, Ethnobotanical Significance, and Habitat Projections for <i>Arisaema Costatum</i> (Wall.) Mart. in Response to Climate Change in Nepal

SSRN Electronic Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Snow Leopard habitat vulnerability assessment under climate change and connectivity corridor in Xinjiang Uygur autonomous region, China

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 25, 2025

Climate change is recognized as one of the greatest challenges to global biodiversity. The endangered snow leopard (Panthera uncia), an apex predator in high-altitude mountain ecosystems, serves important indicator ecological health. Understanding impacts climate on distribution patterns essential for developing effective conservation strategies. Based BIOMOD2 model, this study assesses current suitable habitats and project future changes under various scenarios, well evaluates protection gap corridor construction Xinjiang Uygur Autonomous Region, China. results indicated total area habitat approximately 686,200 km2 conditions. remains relatively stable or slightly increases low emissions while predictions show a gradual decline moderate high scenarios. Currently, are fragmented, with connectivity among patches, posing threats population. Vulnerable primarily located Altai, northwestern Junggar Basin, central Tianshan Mountains. Potential areas projected emerge Kunlun It suggested that greater focus be placed unprotected refugia, enhancing corridors, fostering cross-border cooperation, implementing long-term monitoring efforts. This provides valuable insights strategies aimed at mitigating populations Xinjiang,

Language: Английский

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Climate change impacts: Vegetation shift of broad-leaved and coniferous forests

Trees Forests and People, Journal Year: 2023, Volume and Issue: 14, P. 100457 - 100457

Published: Nov. 7, 2023

Climate change is a variation in temperature and precipitation for longer periods due to global warming. It has an impact on tree species distribution, composition diversity of the forests. Our study aims answer how future climate likely have vegetation shift broad-leaved coniferous The used forest resource assessment data (2010-2014) Nepal assess from perspective scenario. We collected altogether 392 presence points (observations) forests 99 These occurrence accompanied by bioclimatic variables topographical (Elevation, Slope Aspect) were as input MaxEnt model predict distribution found potential area near current (1970-2000) replaced under scenario (SSP2 4.5 2041-2060) vice versa. total projected was be approximately 1800 km2 (i.e. over 3% area). Out area, almost 90% percent while remaining 10% forest. been noticed shift, particularly more dominant. provides better insights into existing

Language: Английский

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Integrating Entropy Weight and MaxEnt Models for Ecotourism Suitability Assessment in Northeast China Tiger and Leopard National Park

Land, Journal Year: 2024, Volume and Issue: 13(8), P. 1269 - 1269

Published: Aug. 12, 2024

The development of ecotourism in protected areas faces the challenge balancing conservation and ecotourism. Ecotourism suitability assessments are essential tools for managing tourism these areas. However, current often overlook biological factors, leading to adverse effects on wildlife. This study uses Northeast China Tiger Leopard National Park as a case establish comprehensive assessment system that integrates with tiger leopard habitat suitability, thereby linking wildlife conservation. primary research methods include analysis based entropy weight method using MaxEnt model. Based zoning results map was produced. indicates very high account 45.62% total area, covering approximately 6152.563 km2, primarily located edges village clusters. These can be prioritized developing infrastructure. balance conservation, contributing significantly coordinated economic, social, environmental objectives.

Language: Английский

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Time to Step Up Conservation: Climate Change Will Further Reduce the Suitable Habitats for the Vulnerable Species Marbled Polecat (Vormela peregusna)

Animals, Journal Year: 2023, Volume and Issue: 13(14), P. 2341 - 2341

Published: July 18, 2023

Habitat loss and human threats are putting the marbled polecat (Vormela peregusna) on brink of extinction. Numerous recent studies have found that climate change will further deteriorate living environment endangered species, leading to their eventual In this study, we used results infrared camera surveys in China worldwide distribution data construct an ensemble model consisting 10 commonly ecological niche models specify potential suitable habitat areas for V. peregusna under current conditions with similar environments sighting record sites. Changes future scenarios were simulated using mid-century (2050s) end century (2090s) provided by Coupled Model Intercomparison Project Phase 6 (CMIP6). We evaluated accuracy obtain environmental probability values (cutoff) distribution, habitats, changes moderately highly areas. The showed general linear (GLM) was best single predicting habitats peregusna, kappa coefficient, area curve (AUC), true skill statistic (TSS) all exceeded 0.9, reflecting greater stability than models. Under conditions, reached 3935.92 × 104 km2, suggesting a wide range. future, is predicted severely affect substantially reduce 11.91 33.55% no longer survival peregusna. This shift poses extremely serious challenge conservation species. suggest attention be given problem Europe, especially countries surrounding Black Sea, Asia, China, Mongolia, measures taken, such as regular monitoring designating protected vulnerable animals.

Language: Английский

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