Predicting the Potential Habitat Distribution of Relict Plant Davidia involucrata in China Based on the MaxEnt Model

Forests, Journal Year: 2024, Volume and Issue: 15(2), P. 272 - 272

Published: Jan. 31, 2024

Davidia involucrata Baill. 1871 (D. involucrata), as a tertiary relict plant unique to China, is national Class I protected with high economic value. Oil extracted from its seeds and peels can be used for both consumption industrial purposes. It has become popular income-earning export tree in China because of graceful posture beautiful white bracts. Climate change affects the distribution species’ potential habitat areas. Thus, studying natural pattern future changes great significance sustainable resource utilization biodiversity conservation D. involucrata. Here, we employed MaxEnt model ArcGIS software predict current (the 2050s 2070s) habitats via 130 species records 37 environmental variables. Meanwhile, jackknife method assess importance factors. Our results showed following: (1) When RM = 4 FC LQHPT, exhibited lowest complexity overfitting degree while achieving prediction accuracy. The area under curve (AUC) value simulated training was 0.958, indicating an excellent forecast. (2) Under climate scenario, mainly concentrated eastern Sichuan, western Hubei, northern Guizhou, northwestern Hunan, 98.02 × 104 km2. (3) precipitation warmest quarter (Bio18, 30%), mean temperature driest (Bio9, 24.4%), annual radiation (Bio20, 14.6%), elevation (ele, 12.7%) were main factors affecting distribution; t contribution 82.1%. (4) different scenarios, decreased overall. Compared areas gradually 2070s ssp126 ssp585 scenarios but then increased ssp370 scenario. Therefore, it track monitor existing population or community on basis possible area. Moreover, artificial breeding seedlings should considered improve quality germplasm resources. In summary, our findings provide scientific understanding are conducive utilization.

Language: Английский

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Study on the impact of reclamation and development of Yancheng coastal wetlands on the spatio-temporal evolution of wintering Anatidae habitat

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111892 - 111892

Published: March 1, 2024

As a World Natural Heritage Site primarily focused on protecting migratory bird habitats, the Yancheng coastal wetland is also an important land resource reserve area in China. With long history of reclamation, impact reclamation waterbird habitats has attracted widespread attention. Therefore, this study was based distribution data wintering Anatidae from 1987 to 2020 and data. The landscape development intensity (LDI) index MaxEnt model were used reveal spatiotemporal changes identify evolution characteristics habitats. A geographical weight regression (GWR) analyze local differences for results showed that types with higher increased rapidly 2020, overall pattern low northeast high southwest. high-intensity range 5.01 ∼ 6.00, western Dafeng Tiaozini generally greater than 8.01 2020. From population first decreased then increased, clear southward shift spatial distribution. evaluation suitable revealed most significantly declined 1280.76 hm2 1997 60.19 which indicated patch space high-quality further compressed. greatest positive habitat suitability concentrated near Beihuanchong area, while 2007, negative mostly distributed northern Hexin area. coefficient ranged −0.665 -0.513. deteriorated correlation ranging −1.642 -0.699. There significant environmental variables different periods. In study, protection restoration proposed, may provide reference populations structural wetlands.

Language: Английский

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Changes in the Range of Four Advantageous Grasshopper Habitats in the Hexi Corridor Under Climate Change

Published: Feb. 12, 2024

Oedaleus decorus asiaticus, Calliptamus abbreviatus, Angaracris rhodopa, and Myrmeleotettix palpalis are the main grasshoppers that harm natural grassland in Hexi Corridor. In this study, MaxEnt model was employed to identify key environmental factors affecting distribution of four habitats assess their under current future climate change conditions. The aim provide a basis for grasshopper monitoring, prediction, precise control. 61 occurrences O. 68 A. 58 C. 92 M. were recorded by GPS, suitable predicted climatic scenarios using model. average AUC TSS values greater than 0.9, simulation results excellent highly reliable. mean annual precipitation factor limiting range areas these species. Under climate, rhodopa mainly distributed central eastern parts Corridor, throughout with potential area 1.44×104, 1.43×104, 1.29×104, 2.12×104 km2, accounting 15.3, 15.2, 13.7, 22.5% total grasslands respectively. east-central part Zhangye City, western Wuwei southern Jinchang 0.35×104, 0.29×104, 0.20×104 3.7, 3, 2.2% area, high habitat southeast Jiuquan west, middle, east west south an 0.32×104 3.4% area. 2030s, decrease.

Language: Английский

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Mitochondrial Genome Characteristics and Comparative Genomic Analysis of Spartina alterniflora

Current Issues in Molecular Biology, Journal Year: 2025, Volume and Issue: 47(2), P. 107 - 107

Published: Feb. 8, 2025

The mitochondrial genome of Spartina alterniflora, an invasive species with significant ecological and economic impacts, was analyzed to provide a theoretical basis for understanding its phylogenetic relationships molecular biology. Mitochondrial sequences S. alterniflora 23 related from NCBI were utilized bioinformatics comparative genomic analyses. A sliding window analysis identified three genes (rps2, atp9, nad6) as potential DNA barcodes identification. Intracellular gene transfer (IGT) events between chloroplast detected, highlighting the dynamic nature evolution. selective pressure revealed that most protein-coding (PCGs) underwent purifying selection (Ka/Ks < 1), while nad2 ccmB showed signs positive > indicating their role in adaptation. demonstrated close relationship Eleusine indica, supported by collinearity analysis, which suggests environmental convergence. This study provides novel insights into structural evolutionary characteristics genome, offering valuable resources future research on management

Language: Английский

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Assessment of wetland sustainability capacity of artificial mangrove wetland on landscape scale: A case of Luoyangjiang River Estuary, China

Ecological Engineering, Journal Year: 2025, Volume and Issue: 214, P. 107561 - 107561

Published: Feb. 19, 2025

Language: Английский

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Mangrove Against Invasive Snails: Aegiceras corniculatum Shows a Molluscicidal Effect on Exotic Apple Snails (Pomacea canaliculata) in Mangroves

Plants, Journal Year: 2025, Volume and Issue: 14(5), P. 823 - 823

Published: March 6, 2025

Apple snails (Pomacea canaliculata), one of the 100 most serious invasive species in world, have invaded mangrove wetlands due to their salinity tolerance. We firstly prepared a plant molluscicide against apple based on Aegiceras corniculatum coastal wetland. The effects four extracts from A. corniculatum, including ethanol extract (EE), petroleum ether (PEE), ethyl acetate (EAE), and n-butanol (BE), were studied for molluscicidal activity saline environment. LC50 values at 48 h EE, PEE, EAE, BE 25 mg/L, 123 170 14 respectively. had highest value (96.7%) h. At h, leaves significantly decreased soluble sugar content, protein acetylcholinesterase, glutathione 4.25 mg/g, 29.50 947.1 U/gprot, 6.22 respectively, compared those control. increased concentration enhanced malondialdehyde aspartate aminotransferase contents 4.18 mmol/gprot 18.9 U/gprot Furthermore, damage hepatopancreas tissue increased, cellular structure became necrotic as increased. content palmitic acid was (10.9%), possibly be toxic ingredient snails. showed potential control brackish water, its plantation beneficial further spread wetlands.

Language: Английский

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Spatiotemporal Dynamics and Potential Distribution Prediction of Spartina alterniflora Invasion in Bohai Bay Based on Sentinel Time-Series Data and MaxEnt Modeling

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(6), P. 975 - 975

Published: March 10, 2025

The northward expansion of Spartina alterniflora (S. alterniflora) poses a profound ecological threat to coastal ecosystems and biodiversity along China’s coastline. This invasive species exhibits strong adaptability colder climates, facilitating its potential spread into northern regions underscoring the urgent need for nuanced understanding spatial distribution invasion risks inform evidence-based ecosystem management strategies. study employed multi-temporal Sentinel-1/2 imagery (2016–2022) map predict S. in Bohai Bay. An object-based random forest classification achieved an overall accuracy above 92% (κ = 0.978). Over six-year period, decreased from 46.60 km2 2016 12.56 2022, reflecting annual reduction approximately 5.67 km2. decline primarily resulted targeted eradication efforts, including physical removal, chemical treatments, biological competition Despite this local reduction, MaxEnt modeling suggests that climate trends habitat suitability continue support expansion, particularly high-risk areas such as Binhai New District, Shandong Yellow River Delta, Laizhou Bay tributary estuary. Key environmental drivers include maximum temperature warmest month, mean wettest quarter, isothermality, sea surface temperature, soil type. High-risk zones, covering about 95.65 These findings illuminate dynamics offer scientific guidance restoration strategies, ensuring protection fostering sustainable development.

Language: Английский

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Using habitat suitability modeling to integrate ecosystem‐based approaches for mangrove restoration site selection

Ecosphere, Journal Year: 2025, Volume and Issue: 16(3)

Published: March 1, 2025

Abstract Mangrove forest restoration can improve services and functions across associated coastal ecosystems. However, the effectiveness of mangrove efforts is highly dependent on knowing locations habitat requirements target species within landscape interest. Habitat suitability models are powerful tools that identify suitable environmental conditions reduce risk poor site selection. When coupled with information potential future climate conditions, land‐use conflicts, co‐benefits (e.g., biodiversity), these be used to prioritize areas meet multiple stakeholder objectives help implement a broader ecosystem‐based approach restoration. In this study, we machine learning assess present forests Arabian Gulf. We then incorporated marine data from Qatar for in country where mangroves constitute only type forest. All tested (artificial neural networks, boosted regression trees, random forest, Maxent, Maxnet) showed high predictive performance, but percentage contributions each predictor differed models. Important predictors included elevation, slope, distance coastline, temperature, precipitation. While most predicted reduction region, there were sites located currently protected areas. identified several impact (i.e., suitability, far urban areas, closest live coral areas) northwest side Qatar. These results demonstrate modeling paired restrictions, proximity infrastructure, other ecosystems integrate an guide

Language: Английский

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Distribution Prediction and Adaptability Analysis of Section Camellia Plants (Camellia Genus) in China Based on the MaxEnt Model

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(4)

Published: April 1, 2025

ABSTRACT Sect. Camellia plants, widely distributed across southern China, hold significant economic value through their dual applications in landscape greening, ornamental horticulture, and oilseed production. However, with rapid changes the global climate, it is becoming increasingly important to study habitat distributions of species factors influencing adaptations. Using maximum entropy model, we predicted past, present, future distribution areas suitable habitats for sect. under different climate scenarios. The results revealed that current conditions, total area was 17.04 × 10 5 km 2 , highly 1.95 . strongly influenced by key environmental factors, such as temperature hottest month (Bio5), minimum coldest (Bio6), annual difference (Bio7), slope (Slope). In view change, center expected shift higher latitudes may undergo northward movement adapt new leading an expansion area.

Language: Английский

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Vertical flow structures in a finite patch of natural submerged vegetation under wave-current conditions: Laboratory experiments

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 133405 - 133405

Published: April 1, 2025

Language: Английский

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