Global Ecology and Conservation最新文献

{"title":"Projected expansion in two influenza-susceptible birds' distribution under climate and land-cover changes on the Qinghai-Tibetan Plateau","authors":"Xuelei Wei ,&nbsp;Yunrui Ji ,&nbsp;Ru Jia ,&nbsp;Quanliang Li ,&nbsp;Cunxin Ma ,&nbsp;Xikang Song ,&nbsp;Fangwei Cheng ,&nbsp;Hengqing Yin ,&nbsp;Fengyi Xu ,&nbsp;Hongyan Yu ,&nbsp;Ge Sun ,&nbsp;Xiulei Wang ,&nbsp;Diqiang Li ,&nbsp;Guogang Zhang","doi":"10.1016/j.gecco.2024.e03305","DOIUrl":"10.1016/j.gecco.2024.e03305","url":null,"abstract":"<div><div>Avian influenza is a global zoonotic disease influencing bird conservation and public health. Climate and land-cover changes can significantly impact influenza-susceptible species' distribution, thereby influencing avian influenza outbreaks. The Qinghai-Tibetan Plateau (QTP) plays a crucial role in avian influenza virus transmission and is susceptible to environmental changes. Here, we focused on two influenza-susceptible birds, the bar-headed goose (<em>Anser indicus</em>) and brown-headed gull (<em>Chroicocephalus brunnicephalus</em>), to predict their distribution on the QTP under climate and land-cover change scenarios. We integrated satellite tracking, field surveys, and publicly available datasets to collect species occurrence. Then, we utilized Biomod models to predict bird distribution under current and future scenarios. Our results indicated that the distance to water bodies (DW) and the mean temperature of the wettest quarter (BIO 8) significantly influenced the distribution of bar-headed geese and brown-headed gulls. The highly suitable distributions of both species are concentrated in the northeastern QTP and the Changtang Plateau, with only the Qaidam Basin showing a decrease in the future. Their future distribution has roughly doubled, with expansions toward western and higher elevations. We highlighted the influence of climate and land cover changes on bird distribution, and identified key areas of bird distribution, which are also critical areas for future avian influenza monitoring and prevention.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"56 ","pages":"Article e03305"},"PeriodicalIF":3.5,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Economic effects of wild boar damage to crops in protected areas of Nepal","authors":"Yamuna Gharti Magar ,&nbsp;Bindu Pant ,&nbsp;Sandeep Regmi ,&nbsp;Hem Bahadur Katuwal ,&nbsp;Jerrold L. Belant ,&nbsp;Hari Prasad Sharma","doi":"10.1016/j.gecco.2024.e03301","DOIUrl":"10.1016/j.gecco.2024.e03301","url":null,"abstract":"<div><div>Human wild-boar conflict is one of the prominent issues in Nepal, especially in areas adjacent to protected areas. Wild boars cause substantial damage to the agricultural crops and affect the lives of rural farmers through economic loss. However, the extent of this loss varies across protected areas. Thus, this study aims to compare the economic loss due to crop damage by wild boar between two protected areas with different management regimes; Shuklaphanta National Park (ShNP) and Dhorpatan Hunting Reserve (DHR). We used a questionnaire survey and descriptive statistics to characterize and compare the pattern of human wild boar conflicts between ShNP and DHR. Altogether, the two protected areas experienced a crop damage of 87,035.78 kg with an estimated economic loss of 26,389 USD within a year in our study. The most damaged crop in the ShNP was paddy whereas that in DHR was potato. We recorded a higher crop damage and economic loss in ShNP than in DHR. However, the severity of conflict is higher in DHR with around 8 % of the total production damaged by wild boar. Although the government declared wild boar an agricultural menace in 2023 and permitted killing on private lands, local communities should also apply other mitigation measures to prevent wild boars from entering crop fields. Additionally, the potential introduction of trophy hunting in ShNP (already permitted in DHR), following comprehensive studies, could help reduce economic losses associated with human-wild boar conflicts. Such combined efforts could create a more sustainable approach to managing wild boar populations while safeguarding local agriculture and livelihoods.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"56 ","pages":"Article e03301"},"PeriodicalIF":3.5,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-native palm affects arthropod communities and litter decomposition in an ongoing biome shift","authors":"Vincent Fehr ,&nbsp;Marco Moretti ,&nbsp;Gianni Boris Pezzatti ,&nbsp;Gloria Guidotti ,&nbsp;Sergio Rasmann ,&nbsp;Ira Tanya Handa ,&nbsp;Robert Buitenwerf ,&nbsp;Jens-Christian Svenning","doi":"10.1016/j.gecco.2024.e03303","DOIUrl":"10.1016/j.gecco.2024.e03303","url":null,"abstract":"<div><div>The emergence of novel ecosystems, characterized by shifts in species composition and interactions, abiotic conditions and altered ecosystem functioning, is a major and inevitable challenge to contemporary ecosystem management. This study examines the ecological implications of <em>Trachycarpus fortunei</em>, a non-native evergreen palm, currently involved in a biome shift from deciduous temperate forest to evergreen laurophyllous forest in the Southern European Alps. Specifically, we investigated the effects of <em>T. fortunei</em> encroachment in peri-urban forests on flying and ground-dwelling arthropod communities as well as on leaf-litter decomposition. We found that the presence of <em>T. fortunei</em> altered arthropod community composition, mostly by reducing the number of herbivore species. This effect was likely driven by the lower quality of palm leaves as a food source compared to deciduous, dicotyledonous tree leaves and by a lower plant richness in the herb and shrub layer. Furthermore, we observed higher rates of leaf-litter decomposition associated with increasing abundance of young palm trees, which was not explained by predictors commonly associated with litter decomposition (i.e., detritivore abundance, litter depth and air temperature). Hence, the slow decay of palm leaves appears to be counterbalanced by the favourable conditions for litter decomposition within dense palm stands. Overall, our findings indicate that high densities of the non-native palm species (<em>T. fortunei</em>) impacts herbivore arthropod communities in the Southern European Alps, providing first evidence of possible effects on ecosystem functioning of this ongoing biome shift. These outcomes are integral components of the broader process of laurophyllisation in the study region, a phenomenon linked to climate warming and land use change, encompassing both native and non-native species.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"56 ","pages":"Article e03303"},"PeriodicalIF":3.5,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the reliability of species distribution models under changing environments: A case study on cetaceans in the North-East Atlantic","authors":"Rémi Pigeault ,&nbsp;Matthieu Authier ,&nbsp;Nadya C. Ramirez-Martinez ,&nbsp;Auriane Virgili ,&nbsp;Steve C.V. Geelhoed ,&nbsp;Jan Haelters ,&nbsp;Maite Louzao ,&nbsp;Camilo Saaveedra ,&nbsp;Anita Gilles","doi":"10.1016/j.gecco.2024.e03299","DOIUrl":"10.1016/j.gecco.2024.e03299","url":null,"abstract":"<div><div><ul><li><span>1.</span><span><div>Species Distribution Models (SDMs) assume stable relationships between species and their environment from which predictions are made. These relationships are likely to vary with changing environments, and predictions might depend more on modelling choices than on empirical data. Reliability assessments of predictions are necessary to support policy-making.</div></span></li></ul><ul><li><span>2.</span><span><div>We identified environmental extrapolations among potential predictions of cetaceans’ distribution from 2005 to 2020 in the North-East Atlantic and calculated the percentages of calibration data with similar environments (nearby data), supporting these predictions. Thus, the assessment of reliability is generic, as evaluated before model fitting.</div></span></li></ul></div><div><ul><li><span>3.</span><span><div>Predictions on continental shelves were extensively supported by the calibration data and were more reliable throughout the year than predictions on continental slopes and abyssal plains, which were more supported in summer. Predictions off Portugal were particularly uncertain due to the lack of surveys in this region of deep, warmer waters with seamounts.</div></span></li></ul><ul><li><span>4.</span><span><div>The high effort between May and July led to a southern winter shift of nearby data, following the decrease in temperatures. A large part of the predictions between December and April was extrapolated due to the low coverage of the winter primary productivity drops, spring peaks and cold waters. They were based on data collected during other seasons and regions, and given the large spatial extent of the area, and the seasonality and regionality of the cetacean distributions, reliable winter predictions might be restricted to geographic areas where winter surveys took place. These predictions are more uncertain and warrant caution.</div></span></li></ul></div><div><ul><li><span>5.</span><span><div><em>Synthesis and applications</em>: extrapolations and nearby data highlighted environmental gaps to predict cetacean distributions in the North-East Atlantic, which could be covered by future surveys. This informs model users of regions and periods when predictions reliability becomes uncertain. SDMs are invaluable tools for supporting conservation applications and, despite the warnings that have been issued, the degree of information available for predicting distribution is still rarely reported. We recommend adding this assessment as routine information on the reliability of predictions.</div></span></li></ul></div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"56 ","pages":"Article e03299"},"PeriodicalIF":3.5,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of DNA metabarcoding in the dietary pattern of a nonbreeding white-tailed eagle population in Northeast Asia under supplementary feeding","authors":"Jiatong Yuan ,&nbsp;Yawen Deng ,&nbsp;Jianping Ge ,&nbsp;Hongfang Wang ,&nbsp;Yu Guan ,&nbsp;Lei Bao","doi":"10.1016/j.gecco.2024.e03297","DOIUrl":"10.1016/j.gecco.2024.e03297","url":null,"abstract":"<div><div>Food supplementation has become an increasingly prevalent strategy for animal conservation. A large white-tailed eagle (<em>Haliaeetus albicilla</em>) population exists in a wetland in Northeast Asia during the boreal winter, mainly because of regular supplementary feeding. However, the use of supplementary food by eagles has not been assessed. In this study, we used non-invasive sampling and DNA metabarcoding to investigate the food composition of white-tailed eagles in a lake near a supplementary feeding site. Our results revealed that supplemental food was present in 94 % of the samples, with a weighted percent of occurrence (wPOO) of 64.62 %. In addition to supplementation, we identified 11 natural prey species, including fish, birds, and mammals, from freshwater, marine, and terrestrial ecosystems. After February, there was an increasing trend in the frequency of natural food items, especially of marine fish, in the diet of the eagles. Our study demonstrates the power of DNA metabarcoding in dietary studies of raptor species in the presence of supplementary feeding. Based on our results, multiple recommendations have been provided to achieve adaptive management of large nonbreeding populations of eagles in our study area.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"56 ","pages":"Article e03297"},"PeriodicalIF":3.5,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An object-oriented model of the invasion and eradication of Poa annua L. on King George Island, Antarctica","authors":"Halina Galera ,&nbsp;Miłosława Sokół ,&nbsp;Łukasz Banasiak ,&nbsp;Agnieszka Rudak ,&nbsp;Maciej Wódkiewicz","doi":"10.1016/j.gecco.2024.e03288","DOIUrl":"10.1016/j.gecco.2024.e03288","url":null,"abstract":"<div><div>We implemented a custom object-oriented model to predict the spread of annual bluegrass population at Point Thomas Oasis and to evaluate potential eradication outcome at different eradication success rates. We modeled unobstructed population growth without eradication, sole elimination of plants and removal of plants together with soil within 10 cm around each specimen. Both eradication scenarios considered removal efficiency of 50–100 %. The population with no elimination campaign applied, was still in the exponential phase of growth after 45 simulated years and almost fulfilled the study area. The removal efficiency of 50 % sufficed to control the species, maintaining the population number at a stable and low level. Once the removal action ceased, the population number increased dramatically. 100 % elimination efficiency for 20 years did not guarantee eradication, as leaving even five or less seeds in the soil could initiate population reestablishment. Soil removal within 10 cm around each plant speeded up the elimination. The predicted duration of eradication process to reach 30 or less seeds in the soil, was around 20 years. The removal of annual bluegrass is obstructed by the soil seed bank. The most important parameter driving eradication success is eradication efficiency. Low removal efficiency simulation indicates that poor management, even for a few years, may be amended if the eradication efficiency increases. Our model is transferable for other potential invasive species at Point Thomas Oasis by changing dispersal and germination parameters. Its transferability for other locations would require changing the modeled space.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"56 ","pages":"Article e03288"},"PeriodicalIF":3.5,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Land-use determines the distribution of large branchiopods in climatically homogeneous northern Pannonia","authors":"Alžbeta Devánová ,&nbsp;Jan Sychra ,&nbsp;Johannes Wessely ,&nbsp;Franz Essl ,&nbsp;Andrej Mock ,&nbsp;Michal Horsák ,&nbsp;Tobias Schernhammer","doi":"10.1016/j.gecco.2024.e03300","DOIUrl":"10.1016/j.gecco.2024.e03300","url":null,"abstract":"<div><div>Large branchiopods are key biota of temporary pools in Central European lowlands. Due to land use changes, they are among the most threatened aquatic invertebrates in Europe. The lack of information on the main drivers of species distribution hinders effective protection and conservation prioritisation. We selected eight branchiopod species with representative data on their occurrence in the northern Pannonia to identify the most important drivers of their distribution and to predict their distribution in unexplored temporary pools across the Pannonian region of southern Slovakia, south-eastern Czech Republic, and eastern Austria. Data on pool size and isolation, soil characteristics, land use and climate were used to generate species distribution models using five modelling techniques and ensemble predictions. The distribution of species was mainly affected by the proportion of arable land within the pool (e.g. <em>Triops cancriformis, Leptestheria dahalacensis</em>), land use (e.g. <em>Eubranchipus grubii</em>, <em>Lepidurus apus</em>) and distance from the river (e.g. <em>Branchinecta ferox</em> and <em>Chirocephalus carnuntanus</em>). Wetland size and habitat isolation were also important for some species, mainly for <em>Branchipus schaefferi</em> and <em>Imnadia yeyetta</em>, respectively. As we focused on a climatically homogeneous area, climatic conditions only had the most important effect on the distribution of species that have their distribution limit in northern Pannonia (<em>B. ferox</em>, <em>C. carnuntanus</em>, <em>I. yeyetta</em>). Overall, the diversity of large branchiopods increased with pool size, while decreased with distance to a river and habitat isolation. As some distribution patterns emerged repeatedly in the models, the effective protection can be simplified to consider species that require contrasting conditions. Particular attention should be paid to ephemeral wetlands on arable land, crucial habitats for large branchiopods, yet lacking any protection. Our results can contribute to better conservation of large branchiopods by facilitating surveys of species in understudied areas and improving the knowledge on the species environmental niches.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"56 ","pages":"Article e03300"},"PeriodicalIF":3.5,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Size and vitality characteristics of bilberry (Vaccinium myrtillus L.) populations in the Central Bohemian region of the Czech Republic: A case study of non-timber forest products","authors":"Maryna Sherstiuk ,&nbsp;Viktoria Skliar ,&nbsp;Jan Kašpar ,&nbsp;Zohreh Mohammadi","doi":"10.1016/j.gecco.2024.e03295","DOIUrl":"10.1016/j.gecco.2024.e03295","url":null,"abstract":"<div><div>Bilberry <em>(Vaccinium myrtillus L.)</em> is a key non-timber forest product that plays an important role in forest biodiversity and ecosystem function. This study evaluated the vitality levels of eight bilberry populations in the Central Bohemian region of the Czech Republic, examining whether their vitality depends on the habitat type. Morphometric analyses were conducted, measuring 13 static metric and 16 static allometric morphological parameters of bilberry shoots. Statistical methods, including correlation, factor analysis, and ANOVA, were employed to determine the vitality index and population vitality structure based on the algorithm developed by Y.A. Zlobin. The results indicated that bilberry plants exhibit significant morphological variability based on forest conditions, forming plants with specific habitus traits. High positive correlations were found between many morphological characteristics, which were grouped into five clusters, each comprising 2–4 parameters. Among these, phytomass, total leaf surface area, and plant height were identified as the key determinants of vitality levels. Bilberry populations in Central Bohemian forests were classified into three vitality categories: prosperous, balanced, and depressed. The study found that the most vigorous populations, with Q-index values between 0.3333 and 0.4375, were located in associations such as <em>Pinetum (sylvestris) vaccinio (myrtilli)-oxalidosum (acetosellae)</em>, <em>Pinetum (sylvestris) vaccinio (myrtilli)</em>, and <em>Pineto (sylvestris)-Piceetum (abietis) vaccinio (myrtilli)-oxalidosum (acetosellae)</em>. These populations are also of high economic value due to their bioresource potential. The study underscores the importance of habitat type in influencing bilberry vitality and offers insights into future research on bilberry populations as a vital component of non-timber forest products.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"56 ","pages":"Article e03295"},"PeriodicalIF":3.5,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Responses of vegetation low-growth to extreme climate events on the Mongolian Plateau","authors":"Hao Li ,&nbsp;Yunfeng Hu ,&nbsp;Batunacun","doi":"10.1016/j.gecco.2024.e03292","DOIUrl":"10.1016/j.gecco.2024.e03292","url":null,"abstract":"<div><div>Since the 21st century began, the frequency and intensity of extreme climate events have significantly increased globally, becoming a widely recognized phenomenon of global change. These extreme events, including droughts and heatwaves, have profound impacts on the structure and function of ecosystems. This study focuses on the Mongolian Plateau. It utilizes meteorological and remote sensing vegetation data, combined with consistency and sensitivity analyses. These approaches aim to provide an in-depth understanding of the relationship between various extreme climate events and vegetation low-growth. The study found that extreme drought and extreme heat events are the primary drivers affecting vegetation low-growth on the Mongolian Plateau. The analysis results indicate that the sensitivity of vegetation to these extreme climate events is regulated by regional hydrothermal conditions, with vegetation in long-term drought areas being more susceptible to the suppression of extreme drought, while humid areas exhibit some resistance. As the temperature gradient increases, the sensitivity of vegetation to extreme high temperatures increases, while sensitivity to extreme low temperatures decreases. Furthermore, the study also revealed differences in the responses of different vegetation types to extreme events under the same climatic conditions, highlighting the ecological basis of ecosystem resilience and adaptability. This research not only enhances our understanding of vegetation dynamics under the influence of extreme climate events but also provides scientific evidence for ecological management and climate adaptation in the Mongolian Plateau region.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"56 ","pages":"Article e03292"},"PeriodicalIF":3.5,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chromosome-scale assembly and analysis of yellow Camellia (Camellia limonia) genome reveal plant adaptation mechanism and flavonoid biosynthesis in karst region","authors":"Yingying Lu ,&nbsp;Huimin Liang ,&nbsp;Jialin Liao ,&nbsp;Xianglong Li ,&nbsp;Yinxia Rong ,&nbsp;Ruyin Mo ,&nbsp;Jianmin Tang ,&nbsp;Maoteng Li ,&nbsp;Xiangdong Kong ,&nbsp;Yang Huang ,&nbsp;Yu Liang","doi":"10.1016/j.gecco.2024.e03296","DOIUrl":"10.1016/j.gecco.2024.e03296","url":null,"abstract":"<div><div>Yellow Camellia is an endangered and protected wild plant with unique medicinal value. Among the <em>Camellia</em> Sect. <em>Chrysantha Chang</em>, certain species (e.g. <em>Camellia limonia</em>) can grow in karst regions. The karst region is a highly sensitive ecosystem with low environmental capacity. However, the molecular mechanisms underlying the adaptation of yellow camellia to karst regions remain unclear. Here, we present a high-quality genome with 15 chromosome groups with an N50 of 198.92 Mb. The divergence between <em>C. limonia</em> and <em>Camellia sinensis</em> occurred approximately 6 million years ago, indicating that the Himalayan uplift event may led to species differentiation. This enables <em>C. limonia</em> to thrive in a unique ecological environment like the karst region. Flavonoid compounds play a significant role in the interaction between plants and their environment. In comparison to Theaceae family genomes, <em>C. limonia</em> exhibits an increased number of gene family members involved in the flavonoid biosynthesis pathway, including UDP-glycosyltransferases and chalcone reductase. Additionally, two gene clusters associated with flavonoid biosynthesis were identified in the genome of <em>C. limonia</em>. Furthermore, comparative genomics analysis revealed the expansion of genes associated with karst environment adaptation in the genome of <em>C. limonia</em>, such as calmodulin genes and genes related to Calcium ion transmembrane transport. Additionally, at the gene expression level, it was observed that the secondary metabolism-related genes may be involved in the calcium tolerance of <em>C. limonia.</em> These findings provide important insights into the evolution of <em>C. limonia</em>, offering references for the study of plants in karst areas.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"56 ","pages":"Article e03296"},"PeriodicalIF":3.5,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}