Species distribution modeling based on MaxEnt to inform biodiversity conservation in the Central Urban Area of Chongqing Municipality

Ecological Indicators, Год журнала: 2023, Номер 158, С. 111491 - 111491

Опубликована: Дек. 29, 2023

Mainstreaming biodiversity into protection planning and management is of great significance for conservation sustainable development. Species potential distribution modeling an effective way species diversity evaluation hotspots identification, which are crucial conservation. Taking the Central Urban Area Chongqing Municipality as study area, main objectives this were to identify potentially suitable habitats, richness key protected in current future, determine relative contribution environmental factors assess effectiveness areas (PAs) based on MaxEnt model gap analysis. The results showed that habitats total mainly located "two rivers four mountains", with a area 1610.55 km2, forestland accounted 59.78 %. demonstrated clear topographic heterogeneity, index decreased at first then increased increasing terrain niche (TNI). Meanwhile, it was observed plants birds shared similar mountainous areas, overlapping 753.53 high covered 182.83 km2. In 2050, future would remain stable increase steadily. terms direction centroid shift, migrate low latitude, altitude southeast by 8.34 km. jackknife tests indicated determined land use, mean diurnal range TNI. Additionally, problems gaps coexisted existing PAs, comprehensive PAs only 446.96 Finally, suggestions natural system optimization ecological proposed. This provides scientific supports efficient management.

Язык: Английский

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Species distribution modelling and landscape connectivity as tools to inform management and conservation for the critically endangered Himalayan brown bear (Ursus arctos isabellinus) in the Deosai National Park, Pakistan

Frontiers in Ecology and Evolution, Год журнала: 2025, Номер 12

Опубликована: Янв. 13, 2025

The main cause of the global threat to large carnivore populations living in high-altitude areas is human pressure. Himalayan brown bear ( Ursus arctos isabellinus , hereafter bear) listed as a critically endangered species, and it dominates higher altitudes North Western landscapes. Here, we used species distribution modelling landscape connectivity find bears’ suitable habitats corridors Deosai National Park (DNP) surrounding areas. Species models detected bear’s habitat 1,125 km 2 which ca. 73% was covered by DNP. most crucial predictors determining were elevation—particularly if between 3,500 4,500 meters above sea level—as well distance from rivers, cattle, DNP borders. We discovered robust among presence points core study area, particularly within boundaries, using electrical circuit theory models. Landscape values indeed low some outside close confines. Based on our findings, imperative protect that allow bears migrate patches, beyond park’s improve conservation.

Язык: Английский

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Ungulates conservation in the face of human development: Mining and roads' influences on habitat and connectivity in Iran's central plateau

Ecological Informatics, Год журнала: 2024, Номер 81, С. 102656 - 102656

Опубликована: Май 29, 2024

Язык: Английский

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Quantitative assessment of the risk of human activities on landscape fragmentation: A case study of Northeast China Tiger and Leopard National Park

The Science of The Total Environment, Год журнала: 2022, Номер 851, С. 158413 - 158413

Опубликована: Авг. 30, 2022

Язык: Английский

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Big cats persisting in human-dominated landscape: Habitat suitability and connectivity of leopards in central North China

Landscape Ecology, Год журнала: 2024, Номер 39(5)

Опубликована: Апрель 23, 2024

Abstract Context The leopard ( Panthera pardus ), the only large carnivore species occurring in central North China, has undergone substantial range contraction and population decline due to anthropogenic pressure across region. Objectives In this study, we aimed map its current suitable habitats assess degree of connectivity between core inform future conservation planning big cat at landscape scale. Methods We conducted study China (34°11´ ~ 43°49´N, 103°11´ 123°54´E, about 936,000 km 2 ). collected occurrence locations (N = 196) leopards from 2014–2020, modeled habitat suitability using an “ensemble” distribution model by incorporating environmental variables. then identified potential dispersal corridors patches (≥ 100 ) through analysis. Results preferred humid forests higher elevations with less human disturbance. Their were highly fragmented, main located Shanxi, Shaanxi, border Gansu Ningxia provinces. Among all 8,679 habitats, 14 (139–1,084 , mean 495.21 a total area 6,933 among which 25.26% (1,751 are covered nature reserves 11 confirmed occurrence. also 8 least-cost pathways these average length 57.22 km. Conclusions Our results revealed that, persisting fragmented fragile habitats. remaining should be considered managed as regional meta-population for their long-term persistence human-dominated landscape.

Язык: Английский

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Fragile futures: Evaluating habitat and climate change response of hog badgers (Mustelidae: Arctonyx) in the conservation landscape of mainland Asia

Ecology and Evolution, Год журнала: 2024, Номер 14(8)

Опубликована: Авг. 1, 2024

Abstract The small mammalian fauna plays pivotal roles in ecosystem dynamics and as crucial biodiversity indicators. However, recent research has raised concerns about the decline of species due to climate change. Consequently, significant attention is directed toward studying various big flagship for conservation. mammals such hog badgers (Mustelidae: Arctonyx ) remain understudied regarding impacts change Asia. present study offers a comprehensive analysis effects on two mainland badger species, utilizing ensemble distribution modeling. Findings reveal concerning outcomes, only 52% IUCN extent deemed suitable Great Hog Badger ( collaris mere 17% ideal Northern albogularis ). Notably, projections suggest potential reduction over 26% areas both under future scenarios, with most severe anticipated high‐emission scenario SSP585. These declines translate into evident habitat fragmentation, particularly impacting A. , whose patches shrink substantially, contrasting relatively stable . despite their differences, niche overlap reveals an intriguing increase between indicating ecological shifts. underscores importance integrating fragmentation considerations conservation strategies, urging reassessment status insights gained from this are improving protection measures by ensuring adequate legal safeguards maintaining corridors viable patches, which essential across Furthermore, emphasizing urgency proactive efforts, countries habitats can help safeguard these ecosystems detrimental

Язык: Английский

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Identifying core habitats and connectivity paths for the conservation of mouflon (Ovis gmelini) in Western Iran

Global Ecology and Conservation, Год журнала: 2023, Номер 41, С. e02377 - e02377

Опубликована: Янв. 1, 2023

Connectivity among conservation areas helps to alleviate the negative impacts of habitat fragmentation. Mouflon (Ovis gmelini) as a near threatened species has an unclear connectivity status in west Iran. This study was carried out on mouflon with aim modeling suitability and core habitats An ensemble three machine-learning models factorial least-cost path were used for identifying corridors between them, respectively. Our results revealed that grassland density, elevation, slope distance roads most influential variables predicting occurrence area. Five identified area, about 90% which covered by areas. The north area is highest priority conservation. Conservation northern western parts had best mouflon. To prevent poaching, protection should be considered. In addition, predicted crossed roads, could investigated wildlife managers.

Язык: Английский

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Climate change induces habitat shifts and overlaps among carnivores in an arid and semi-arid ecosystem

Ecological Informatics, Год журнала: 2023, Номер 77, С. 102247 - 102247

Опубликована: Авг. 6, 2023

Distribution range shift is inevitable for many species as climate change continues to shape and alter their habitat. Predicting where these shifts occur can help us know what anticipate thus design better programs strategies management. Due projected extreme in arid semi-arid ecosystems, we hypothesized that adapted systems would experience considerable spatial shifts. To test our hypothesis, modelled current future habitats under different scenarios three iconic carnivores (grey wolf, golden jackal, striped hyaena) central of Iran calculated overlaps. Our models predict although each responds differently environmental changes, are heavily influenced by climatic variables, water resources, roads. also suggest the high-quality grey wolves hyaenas will probably expand, while jackals, it decrease. Significant overlap highly suitable habitat exist among species, particularly between jackal hyaena. The overlapped areas all cover 9% 10% whole region at present future. Because decrease rainfall future, may face competition due change. findings crucial establishing conservation conserve carnivore

Язык: Английский

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Habitat and connectivity‐based conservation strategies for the vulnerable Lorestan newt (Neurergus kaiseri) in the Zagros Mountains, Iran

Journal of Wildlife Management, Год журнала: 2025, Номер unknown

Опубликована: Фев. 19, 2025

Abstract The Lorestan newt ( Neurergus kaiseri ) is a vulnerable amphibian endemic to the Zagros Mountains in Iran. This study aimed identify core habitats, assess potential dispersal corridors, and evaluate effectiveness of current conservation efforts. Ensemble species distribution models predicted suitable habitat across newt's range, with annual precipitation temperature as most influential factors. Connectivity simulations revealed critical primarily concentrated northwestern region, that spanned 2,233.43 km², none which fell within designated protected areas. Corridor analysis identified viable pathways between northern southern populations, but only 2.77% corridor network was protected. Roads dams frequently intersected putative posing significant fragmentation threats. These results underscore urgent need for expanded efforts, including establishment new areas measures mitigate fragmentation, ensure connectivity long‐term viability populations. Our findings provide valuable insights guide future strategies this endangered species.

Язык: Английский

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Assessing landscape suitability and connectivity for effective conservation of two semi‐desert ungulates in Iran

Conservation Science and Practice, Год журнала: 2023, Номер 5(12)

Опубликована: Ноя. 6, 2023

Abstract Conservation outside conservation areas (CAs) is more challenging due to increased exposure human‐induced disturbances. Therefore, it important identify and designate new CAs that can protect core wildlife habitat patches, as well key linkages promote connectivity. We performed this study prioritize patches corridors for two semi‐desert sympatric gazelles in Iran (i.e., goitered gazelle Gazella subgutturosa jebeer G. bennettii ) order propose the expansion of existing CAs. used an ensemble distribution modeling approach based on three algorithms (random forest, maximum entropy, generalized boosting models) suitability assessment a combination resistant kernel factorial least‐cost path analysis connectivity modeling. Our results revealed distance CAs, elevation, annual mean temperature were most influential variables predicting species. identified 12 six gazelle, respectively with minimum area 210 km 2 . Core mainly occurred north central basin high priority both protected up half one‐third gazelle. Due disturbances (e.g., vehicle collisions poaching) necessary increase regular monitoring establish gazelles. findings highlight opportunities designating promoting by limiting road impacts.

Язык: Английский

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