The role of land use change in affecting ecosystem services and the ecological security pattern of the Hexi Regions, Northwest China

The Science of The Total Environment, Год журнала: 2022, Номер 855, С. 158940 - 158940

Опубликована: Сен. 21, 2022

Язык: Английский

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An intercomparison of models predicting growth of Antarctic krill (Euphausia superba): The importance of recognizing model specificity

PLoS ONE, Год журнала: 2023, Номер 18(7), С. e0286036 - e0286036

Опубликована: Июль 28, 2023

Antarctic krill ( Euphausia superba ) is a key species of the Southern Ocean, impacted by climate change and human exploitation. Understanding how these changes affect distribution abundance crucial for generating projections Ocean ecosystems. Krill growth an important indicator habitat suitability series models have been developed used to examine potential at different spatial temporal scales. The available using range empirical mechanistic approaches, providing alternative perspectives comparative analyses processes influencing growth. Here we undertake intercomparison suite understand their sensitivities major driving variables. This illustrates that results are strongly determined model structure technical characteristics, data on which they were validated. Our emphasize importance assessing constraints requirements individual ensure appropriate application. study also demonstrates value development modelling approaches identify affecting dynamics krill. Of critical appropriately accounting differences in estimates food availability resulting from methods observation. We suggest approach particularly valuable application assessment circumpolar scales future projections. As another result intercomparison, implementations this now publicly use analyses.

Язык: Английский

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Projected impacts of climate change on snow leopard habitat in Qinghai Province, China

Ecology and Evolution, Год журнала: 2021, Номер 11(23), С. 17202 - 17218

Опубликована: Ноя. 18, 2021

Abstract Assessing species’ vulnerability to climate change is a prerequisite for developing effective strategies reduce emerging climate‐related threats. We used the maximum entropy algorithm (MaxEnt model) assess potential changes in suitable snow leopard ( Panthera uncia ) habitat Qinghai Province, China, under mild scenario. Our results showed that area of Province was 302,821 km 2 current conditions and 228,997 2050s climatic scenario, with mean upward shift elevation 90 m. At present, nature reserves protect 38.78% currently will 42.56% future habitat. Current areas refugia amounted 212,341 are mainly distributed Sanjiangyuan region, Qilian mountains, surrounding areas. provide valuable information formulating meet conservation challenges brought on by stress. suggest efforts should focus protecting maintaining or building corridors when planning species management.

Язык: Английский

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From Part to Whole: Scale-Dependence Habitat Selection by Snow Leopards (Panthera Uncia)

Опубликована: Янв. 1, 2025

Snow leopards (Panthera uncia) are regarded as the most charismatic apex predator in alpine Asia, yet their populations under serious threat from human activities and habitat fragmentation. Ensuring effectiveness of current protected areas is critical for conservation, which necessitates a comprehensive understanding selection patterns at different spatial scales. Here, we conducted five-year camera trap survey snow Qilian Mountains used multi-scale modelling to investigate connectivity. Our results revealed scale-dependence leopard selection. We found that smaller scales, prey resource topographic variables were main factors determining leopards. Particularly, distribution probability primarily determined overall small scale. At larger however, there was stronger correlation between climate well impacts. The scale-optimized multivariate models indicated significant gaps protecting core habitats ensuring landscape More than 50% projected patches not included areas. Areas with highest number (Subei County) corridors (Tianjun also had least half area outside study provides insights conservation planning suggests prioritizing previously overlooked essential corridors.

Язык: Английский

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Next‐Generation Snow Leopard Population Assessment Tool: Multiplex‐PCR SNP Panel for Individual Identification From Faeces

Molecular Ecology Resources, Год журнала: 2025, Номер unknown

Опубликована: Янв. 31, 2025

ABSTRACT In recent years, numerous single nucleotide polymorphism (SNP) panel methods to genotype non‐invasive faecal samples have been developed. However, none of these existing fit all the criteria necessary make a SNP broadly usable for conservation projects in any country—cost effective, streamlined lab protocol and user‐friendly open‐source bioinformatics protocols design analysis. Here, we present such method display its utility by developing multiplex PCR conducting individual ID snow leopards, Panthera uncia , from samples. The consists 144 SNPs utilises next‐generation sequencing technology. We validate our with paired tissue zoo individuals, showing minimum 96.7% accuracy allele calls per run. then generate data 235 field‐collected across Pakistan show that can reliably identify individuals low‐quality unknown age is robust contamination. also has capability first‐order relatives among sampled provides insights into geographic origin This will empower leopard research community their efforts assess local global population sizes. More broadly, development be used species interest which adequate genomic reference available.

Язык: Английский

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Climate Change and Human Pressure: Assessing the Vulnerability of Snow Leopard (Panthera uncia) Habitat Integrated With Prey Distribution on the Qinghai‐Tibet Plateau

Ecology and Evolution, Год журнала: 2025, Номер 15(4)

Опубликована: Апрель 1, 2025

ABSTRACT Climate change is significantly altering the distribution of large carnivores and their primary prey species, with particular emphasis on changing in high‐altitude regions. The Qinghai‐Tibet Plateau, known for its rich biodiversity, highly sensitive to climate change, affecting habitats snow leopards ( Panthera uncia ) blue sheep Pseudois nayaur ). Our study identified as through metagenomic analysis used bioclimatic data Land Use/Cover Change (LUCC) information model habitat suitability under three scenarios (RCP 2.6, RCP 4.5, 8.5). Projections showed that 4.5 8.5, leopard will decrease by 13.0% 23.4%, while 38.3% 49.7%, respectively. These are expected shift higher altitudes, experiencing a more significant shift. Based these findings, we recommend adjusting protected area boundaries S1 (Ideal range), establishing ecological corridors S2 (stepping stone), implementing targeted measures mitigate human‐wildlife conflicts S3 (potential conflict area). To protect international efforts reduce carbon emissions, cross‐administrative cooperation, community‐based conservation strategies essential.

Язык: Английский

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

Ecosphere, Год журнала: 2025, Номер 16(4)

Опубликована: Апрель 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

Язык: Английский

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

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Апрель 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,

Язык: Английский

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Climate change and conservation strategies for the Anhui musk deer: habitat suitability and climate refuges in the Dabie Mountains

Landscape Ecology, Год журнала: 2025, Номер 40(5)

Опубликована: Май 5, 2025

Язык: Английский

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Different coexistence patterns between apex carnivores and mesocarnivores based on temporal, spatial, and dietary niche partitioning analysis in Qilian Mountain National Park, China

eLife, Год журнала: 2024, Номер 13

Опубликована: Янв. 24, 2024

Carnivores play key roles in maintaining ecosystem structure and function as well ecological processes. Understanding how sympatric species coexist natural ecosystems is a central research topic community ecology biodiversity conservation. In this study, we explored intra- interspecific niche partitioning along spatial, temporal, dietary between apex carnivores (wolf Canis lupus , snow leopard Panthera uncia Eurasian lynx Lynx ) mesocarnivores (Pallas’s cat Otocolobus manul red fox Vulpes vulpes Tibetan ferrilata Qilian Mountain National Park, China, using camera trapping data DNA metabarcoding sequencing data. Our study showed that carnivore had more overlap temporally (coefficients of ranging from 0.661 to 0.900) or trophically (Pianka’s index 0.458 0.892), mesocarnivore high with each other 0.945 0.997), temporal 0.497 0.855). Large was observed wolf = 0.892) Pallas’s suggesting the potential for increased resource competition these pairs. We concluded spatial likely driver facilitating coexistence species, while facilitate species. findings consider across dimensions examining diverse patterns China. These will contribute substantially current understanding guilds effective conservation management fragile alpine ecosystems.

Язык: Английский

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