Rural depopulation has reshaped the plant diversity distribution pattern in China

Resources Conservation and Recycling, Год журнала: 2024, Номер 215, С. 108054 - 108054

Опубликована: Дек. 12, 2024

Язык: Английский

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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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Mapping the way: identifying priority potential corridors for protected areas connectivity in Colombia

Perspectives in Ecology and Conservation, Год журнала: 2024, Номер 22(2), С. 156 - 166

Опубликована: Апрель 1, 2024

Colombia has experienced alarming rates of deforestation, posing a threat to forest biodiversity both inside and outside protected areas. Furthermore, decline in ecological connectivity can potentially disrupt vital processes such as pollination, gene flow, breeding, seed dispersal, among others. To address this issue at national scale, it is crucial identify conserve comprehensive network corridors. In study, we identified high priority potential corridors linking areas Colombia. We categorized representative set 16 threatened mammal species into four profiles. Then, used Least Cost Path (LCP) analysis model between those that minimized resistance for dispersal. prioritize conservation efforts, applied the decrease Probability Connectivity index (dPC) with highest priority. Our findings emphasize importance preserving large patches within inhabiting lowland sub-Andean forests. However, residing Andean forests, restoration measures (e.g., increasing cover) are needed enhance landscape permeability facilitate their thereby contributing conservation. results have practical implications decision-makers involved efforts. These aid identifying priorities existing surrounding habitats Additionally, provided expert-based values different mammals be further other scale analyses, including countries where these inhabit.

Язык: Английский

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The ghost of past climate acting on present‐day plant diversity: Lessons from a climate‐based delimitation of the tropical alpine ecosystem

Journal of Systematics and Evolution, Год журнала: 2024, Номер 62(2), С. 275 - 290

Опубликована: Янв. 23, 2024

Abstract Habitat stability is important for maintaining biodiversity by preventing species extinction, but this being challenged climate change. The tropical alpine ecosystem currently one of the ecosystems most threatened global warming, and flora close to permanent snow line at high risk extinction. ecosystem, found in South Central America, Malesia Papuasia, Africa, Hawaii, relatively young evolutionary age, it has been exposed changing climates since its origin, particularly during Pleistocene. Estimating habitat loss gain between Last Glacial Maximum (LGM) present allows us relate current past changes stability. In order do so, (i) we developed a unifying climate‐based delimitation regions across continents, (ii) used assess degree stability, that is, overlap suitable areas LGM present, different regions. Finally, discuss link plant diversity. Our approach can be easily applied other using our code, facilitating macro‐comparative studies dynamics through time.

Язык: Английский

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Ecological Dynamics of Forest Stands with Castanopsis argentea (Blume) A.DC. in a Mountain Ecosystem: Vegetation Structure, Diversity, and Carbon Stock Under Tourism Pressure

Land, Год журнала: 2025, Номер 14(6), С. 1187 - 1187

Опубликована: Май 30, 2025

Saninten (Castanopsis argentea (Blume) A.DC.) is a protected plant that grows in the Mount Gede Pangrango National Park (MGPNP) area West Java. Its population limited, and as valuable biological resource, Castanopsis has traditionally been utilized by indigenous communities, particularly those residing proximity to forest. However, expansion development of tourism pose potential threat ecosystems C. other endemic species, well wildlife depend on these habitats. Comprehensive data biodiversity, species composition, forest structure, carbon stock status are crucial for assessing impact future development. Our investigation was conducted from November 2023 March 2024 three-hectare utilization zone within confines national park. The findings documented total 36 across 23 distinct families, with families Fagaceae, Moraceae, Myrtaceae exhibiting highest levels dominance. regeneration stands at study site predominantly comprised arboreal most substantial stocks, including acuminatissima A.DC. (Riung anak), (Saninten), Litsea sp. (Huru). supplies several functions this ecosystem interconnected components. With aboveground stocks reaching 560.47 tons C/ha, demonstrates high sequestration potential, reinforcing need conserve mature both biodiversity climate benefits. Therefore, future, conservation will benefit maintenance ecosystem’s attractiveness without adversely affecting social cultural structures local population.

Язык: Английский

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Trees diversity explains variations in biodiversity-ecosystem function relationships across environmental gradients and conservation status in riparian corridors

Frontiers in Forests and Global Change, Год журнала: 2024, Номер 7

Опубликована: Март 26, 2024

Riparian ecosystems are recognized as large reservoirs of biodiversity providing important ecosystem services. However, the relationship between tree species diversity and functions underlying ecological mechanisms have less been studied in riparian corridors. This study assessed effect (taxonomic, functional, phylogenetic) on (habitat quality–HbQ aboveground carbon–AGC) across environmental gradients (distances to stream bed) conservation status. Data were collected from 96 inventory plots installed a 1 km buffer zone either side permanent streams Upper Ouémé watershed northern Benin. We employed linear mixed effects models structural equation modeling analyze data. found that (HbQ, AGC) attributes including richness (SR), Faith’s phylogenetic index (PD) community-weighted mean maximum height (CWM Hmax ) significantly lower away streambed than nearby. The correlation SR was significant positive within distance gradient also CWM best predictor both functions, PD mediated AGC HbQ areas close unprotected areas, respectively. Our reveals influence human activities functioning relationships corridors provides new insights into importance tall stature trees with distant lineages for these ecosystems. Based variables measured tested this study, we argue corridor management policies should consider plant traits phylogeny promote wider buffers co-benefits climate change mitigation.

Язык: Английский

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Drivers of plant diversification along an altitudinal gradient in the alpine desert grassland, Northern Tibetan Plateau

Global Ecology and Conservation, Год журнала: 2024, Номер 53, С. e02987 - e02987

Опубликована: Май 13, 2024

Revealing alpine plant diversity patterns can contribute to conserving mountain diversity. However, the spatial variation in ecological niche and of community mechanism by which it maintains itself desert grasslands remain poorly understood. Here, we conducted a field investigation across altitudinal gradients (3093, 3296, 3549, 3790 m) northern Tibetan Plateau compared species composition, indices, Levins' breadth, Pianka's overlap. The results showed that perennial herbs replaced semi-shrubs xermesophytes mesophytes xerophytes with increasing altitude. heights decreased cover herb layer increased altitude, whereas shrub was hump-shaped. Species indices (Patrick, Pielou, Shannon-Wiener, Simpson) Sympegma regelii (1.05), Leymus chinensis (1.03), Reaumuria kaschgarica (0.94) had larger breadths were widespread. high overlap occupied considerable proportion at higher altitudes, indicating strong interactions among species. redundancy analysis revealed soil water content, organic matter pH main factors driving changes (P = 0.036, F 3.7). Our study illustrated environmental filtering biotic jointly shape composition along gradients.

Язык: Английский

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Spatiotemporal Characteristics of Typical Ecosystem Services and Their Spatial Responses to Driving Factors in Ecologically Fragile Areas in Upper Yellow River, China

Chinese Geographical Science, Год журнала: 2024, Номер 34(4), С. 674 - 688

Опубликована: Июль 17, 2024

Язык: Английский

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Multitrophic Diversity of the Biotic Community Drives Ecosystem Multifunctionality in Alpine Grasslands

Ecology and Evolution, Год журнала: 2024, Номер 14(11)

Опубликована: Ноя. 1, 2024

ABSTRACT Biodiversity and ecosystem multifunctionality are currently hot topics in ecological research. However, little is known about the role of multitrophic diversity regulating various functions, which limits our ability to predict impact biodiversity loss on human well‐being multifunctionality. In this study, was divided into three categories: plant, animal, microbial communities (i.e., plant diversity, rodent bacterial fungal diversity). Also, 15 functions were four categories—water conservation, soil fertility, nutrient cycling transformation, community production—to evaluate significance biotic abiotic variables maintaining Results indicated that species at multiple trophic levels had a greater positive than single level. Notably, specific nature relationship depended niche breadths plants, indicating plants played key linking above belowground levels. Abiotic factors such as altitude pH directly acted could explain changes functions. Overall, study offers valuable insights critical preserving within alpine grassland communities, well strong support for importance protection.

Язык: Английский

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Are the altitudinal patterns of plant diversity derived from field surveys consistent with those from empirical integrated methods?

Journal of Mountain Science, Год журнала: 2023, Номер 20(5), С. 1307 - 1315

Опубликована: Май 1, 2023

Язык: Английский

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