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A New Varunid Subfamily (Decapoda, Brachyura, Grapsoidea, Varunidae) for Crabs From European and West African Waters, With the Description of Two New Genera and Two New Species 欧洲和西非水域蟹类一新亚科(十足目,短肢目,蟹总科,蟹科),附二新属二新种记述
IF 2.3 2区 生物学
Ecology and Evolution Pub Date : 2025-07-22 DOI: 10.1002/ece3.71712
Isabel Muñoz, J. Enrique García-Raso, Jose A. Cuesta
{"title":"A New Varunid Subfamily (Decapoda, Brachyura, Grapsoidea, Varunidae) for Crabs From European and West African Waters, With the Description of Two New Genera and Two New Species","authors":"Isabel Muñoz,&nbsp;J. Enrique García-Raso,&nbsp;Jose A. Cuesta","doi":"10.1002/ece3.71712","DOIUrl":"https://doi.org/10.1002/ece3.71712","url":null,"abstract":"<p>The subfamily Asthenognathinae is currently composed of a single genus, <i>Asthenognathus</i> Stimpson, 1858, with three species, <i>A. inaequipes</i> Stimpson, 1858, <i>A. hexagonus</i> Rathbun, 1909 (both from the Indo-West Pacific), and <i>A. atlanticus</i> Monod, 1933 (European and West Tropical African waters). All <i>Asthenognathus</i> species are difficult to collect due to their small size and symbiotic lifestyle with fossorial organisms. The examination of specimens of <i>A. atlanticus</i> from European and West African waters deposited in scientific collections shows significant morphological and molecular differences with the Indo-West Pacific species, which makes the creation of a new subfamily (Schubartinae n. subf.) and two new genera necessary. The identity of <i>A. atlanticus,</i> the only species found along the East Atlantic and Mediterranean waters, is clarified, and a new genus, <i>Dudekemus</i> n. gen., is established for this species, <i>Dudekemus atlanticus</i> (Monod, 1933) n. gen., n. comb. This study also describes another new genus, <i>Schubartus</i> n. gen., based on morphological differences and genetic data. These two new genera can be distinguished from <i>Asthenognathus</i> by the carapace proportions and differences in the structures of the male pleonal somites, pereiopods and endostome. In addition, two new species distributed in Guinea-Bissau and Mauritania, <i>Schubartus mauritanicus</i> n. gen., sp. nov., and <i>S. ngankeeae</i> n. gen., n. sp., are described. A key for species of the subfamilies Asthenognathinae and Schubartinae n.subf. is provided.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 7","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.71712","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using Open Science Tools to Teach Environmental Sciences 使用开放科学工具教授环境科学
IF 2.3 2区 生物学
Ecology and Evolution Pub Date : 2025-07-22 DOI: 10.1002/ece3.71837
Mario Zuliani, C. J. Lortie
{"title":"Using Open Science Tools to Teach Environmental Sciences","authors":"Mario Zuliani,&nbsp;C. J. Lortie","doi":"10.1002/ece3.71837","DOIUrl":"https://doi.org/10.1002/ece3.71837","url":null,"abstract":"<p>Open science, work and knowledge that are developed in full, offers critical resources that provide students with insights into the process of research in many fields. There are extensive opportunities within environmental sciences to incorporate open science into undergraduate level courses. There are seven major open science concepts that could be used to teach undergraduate environmental science courses that align with professional research activities, including open-access papers, pre-prints, open data, open-source software, published code, collaborative tools for version control, and open notebooks. Here, we assessed the use of these open science concepts in connection to the European Union pillars of open science, outlining key benefits, challenges, and how these tools can be used in undergraduate environmental science courses. Specifically, these tools support a framework for open science structured around eight pillars, providing incentives to collaborate, enhancing transparency and openness, and promoting diversity and inclusivity. Collectively, these tools support teaching environmental science content as many of the skills gained directly relate to analyzing environmental topics and data while supporting transparency to collaborators and stakeholders. This provides learning opportunities including finding and reusing data, team collaboration, and reading and working with code. Further endorsing the use of open science in environmental science courses can enhance these courses as these tools align with professional research activities that are currently being used, including publishing data collected in labs, pre-print publishing capstone papers or lab reports, openly publishing code used for analysis, and publishing field notes.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 7","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.71837","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wild or Introduced? Investigating the Genetic Landscape of Cacao Populations in South America 野生的还是引进的?调查南美洲可可豆种群的遗传景观
IF 2.3 2区 生物学
Ecology and Evolution Pub Date : 2025-07-22 DOI: 10.1002/ece3.71746
Matheus Colli-Silva, James Edward Richardson, José Rubens Pirani, Antonio Figueira
{"title":"Wild or Introduced? Investigating the Genetic Landscape of Cacao Populations in South America","authors":"Matheus Colli-Silva,&nbsp;James Edward Richardson,&nbsp;José Rubens Pirani,&nbsp;Antonio Figueira","doi":"10.1002/ece3.71746","DOIUrl":"https://doi.org/10.1002/ece3.71746","url":null,"abstract":"<p>Cacao (<i>Theobroma cacao</i>), the primary source for chocolate manufacturing, is native to the Upper Amazon basin. It was introduced into Mesoamerica by pre-Columbian societies and later spread globally following European colonization, becoming a commercially significant crop. Today, cacao populations exist along a continuum from wild to naturalized and cultivated forms across the Tropical Americas, complicating efforts to distinguish genuinely wild populations from those influenced by human activity. Here, we investigate genomic diversity, population structure, and domestication signals in three groups using RAD-sequencing: Upper Amazonian populations (including Contamana, Marañón, Iquitos and Nanay), the Guiana population, and the Amelonado variety introduced into Eastern Brazil in the 18th century. The Upper Amazonian populations exhibited the highest genetic diversity and limited evidence of recent selection, reaffirming their role as the primary genetic source of cacao. The Amelonado group displayed signatures of artificial selection, including reduced genetic diversity and evidence of balancing selection, consistent with its introduction to Bahia before its later expansion to West Africa. The Guiana population showed intermediate genetic diversity and tight clustering but minimal differentiation from Upper Amazonian populations, suggesting they could represent an isolated wild lineage rather than an introduced group. These findings highlight the complexity of cacao's domestication history, shaped by multiple independent selection events and long-term human influence. Understanding this continuum is important for unraveling the species' evolutionary history for supporting conservation and breeding strategies for cacao, a crop of major economic and cultural importance.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 7","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.71746","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Arctic Greening Drives Changes in the Diet and Gut Microbiome of a Large Herbivore With Consequences for Body Mass 北极绿化驱动大型食草动物饮食和肠道微生物群的变化,从而影响体重
IF 2.3 2区 生物学
Ecology and Evolution Pub Date : 2025-07-22 DOI: 10.1002/ece3.71731
Stefaniya Kamenova, Steve D. Albon, Leif Egil Loe, R. Justin Irvine, Rolf Langvatn, Galina Gusarova, Eric Jacques de Muinck, Pål Trosvik
{"title":"Arctic Greening Drives Changes in the Diet and Gut Microbiome of a Large Herbivore With Consequences for Body Mass","authors":"Stefaniya Kamenova,&nbsp;Steve D. Albon,&nbsp;Leif Egil Loe,&nbsp;R. Justin Irvine,&nbsp;Rolf Langvatn,&nbsp;Galina Gusarova,&nbsp;Eric Jacques de Muinck,&nbsp;Pål Trosvik","doi":"10.1002/ece3.71731","DOIUrl":"https://doi.org/10.1002/ece3.71731","url":null,"abstract":"<p>Rapid climate warming is ‘greening’ the tundra, reflecting a higher plant biomass, particularly of deciduous shrubs and grasses. However, the consequences of these changes for herbivore nutrition are unclear. Although, the gut microbiome mediates nutrient metabolism, and hence herbivores' capacity to adapt to dietary change, few studies have investigated the effect of annual changes in the diet-gut microbiome nexus on fitness-related traits. In a model system, the Svalbard reindeer, a species experiencing the greatest rate of climate warming on Earth, we investigate how changes in diet and the gut microbiome impact reindeer body mass. Using high-resolution DNA metabarcoding, we assessed diet and gut microbiome bacterial composition in rumen samples from animals culled in October from 1998 to 2004 in four different valleys. Overall diet diversity and grass relative reads abundance (RRA) were significantly higher following warmer summers, while the RRA of the dwarf shrub <i>Salix polaris</i> increased with the maximum normalised difference vegetation index (NDVI), our measure of annual biomass. Autumn body mass, a strong proxy of fitness in Svalbard reindeer, was significantly, positively correlated with <i>Salix</i> RRA, most pronounced in females that had reproduced, and by that depleted body reserves. Multivariate analyses revealed a highly significant relationship between diet and microbiome composition at the individual level. This included a significant positive correlation between <i>Salix</i> and bacterial diversity. However, a structural equation model revealed that the direct path effect of <i>Salix</i> on reindeer body mass was stronger than the indirect path effect, mediated through the gut microbiome. Our results suggest that climate-driven Arctic greening may have implications for herbivore body mass, operating through a change in diet composition. These findings reveal some of the mechanistic underpinnings of Arctic warming on herbivore populations and highlight the importance of the diet−gut microbiome nexus in facilitating species resilience to rapid climate change.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 7","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.71731","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to “Prioritizing the Risk of Multiple Invasive Species in the Semiarid Rangelands of Iran: An Ecological Approach to Multicriteria Decision-Making” 对“伊朗半干旱草原多种入侵物种风险的优先排序:多标准决策的生态方法”的更正
IF 2.3 2区 生物学
Ecology and Evolution Pub Date : 2025-07-22 DOI: 10.1002/ece3.71601
{"title":"Correction to “Prioritizing the Risk of Multiple Invasive Species in the Semiarid Rangelands of Iran: An Ecological Approach to Multicriteria Decision-Making”","authors":"","doi":"10.1002/ece3.71601","DOIUrl":"https://doi.org/10.1002/ece3.71601","url":null,"abstract":"<p>Bashari, H., Bazgir, F. and Vahabi, M.R. (2025), Prioritizing the Risk of Multiple Invasive Species in the Semiarid Rangelands of Iran: An Ecological Approach to Multicriteria Decision-Making. <i>Ecol Evol</i>, 15: e71287. https://doi.org/10.1002/ece3.71287</p><p>The correct version of Figure 3 is displayed below:</p><p>The online version of this article has been corrected accordingly.</p><p>We apologize for this error.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 7","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.71601","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stinging Trichome Density and Morphology of Three Nettle Species Reflect Mountain Gorillas' Feeding Behavior 三种荨麻的刺毛密度和形态反映山地大猩猩的摄食行为
IF 2.3 2区 生物学
Ecology and Evolution Pub Date : 2025-07-22 DOI: 10.1002/ece3.71765
Alphonse Nyandwi, Winnie Eckardt, Elias Bizuru, Myriam Mujawamariya, Melanie L. DeVore
{"title":"Stinging Trichome Density and Morphology of Three Nettle Species Reflect Mountain Gorillas' Feeding Behavior","authors":"Alphonse Nyandwi,&nbsp;Winnie Eckardt,&nbsp;Elias Bizuru,&nbsp;Myriam Mujawamariya,&nbsp;Melanie L. DeVore","doi":"10.1002/ece3.71765","DOIUrl":"https://doi.org/10.1002/ece3.71765","url":null,"abstract":"<p>Plants have developed defense mechanisms against herbivory, including stinging trichomes. Unlike smaller trichomes, which deter insects, the larger, biomineralized, stinging trichomes in Urticaceae defend plants from mammals. The trichome tip breaks off, pierces the skin, and injects irritants, causing an immediate sensation of pain. The herbivore will cease consuming the plant. Some herbivores process and consume nettles. Volcanoes National Park (VNP) in Rwanda provides habitat for several large folivores, including the endangered mountain gorilla (<i>Gorilla beringei beringei</i>). VNP mountain gorillas feed on stinging nettle species, including <i>Laportea alatipes</i>, <i>Urtica massaica</i>, and <i>Girardinia bullosa</i>. We investigated the link between the importance (proportion) of these stinging nettles in the diet of gorilla groups ranging in the southwest of VNP and their level of defense through assessing trichome density, length, and glandular base length from each plant organ of 15 specimens per nettle species, which were photographed with a scale ruler under a digital microscope. We also videotaped 12 mountain gorillas consuming <i>L. alatipes</i> to examine adapted feeding techniques to cope with stinging trichomes. We found that <i>L. alatipes</i>, which is consumed most frequently of the three study nettles, had a significantly higher stinging trichome density compared to <i>U. massaica</i> and <i>G. bullosa</i>. However, the length of stinging trichomes and glandular bases containing irritating secretions were significantly smaller in <i>L. alatipes</i> and <i>U. massaica</i> than in <i>G. bullosa</i>, from which gorillas almost exclusively avoid consuming aboveground organs covered with long trichomes. This suggests that larger stinging trichomes and secretory glandular bases offer a more effective defense against mountain gorillas than increased trichome density. The trichome density of <i>L. alatipes</i> tended to be higher on top leaves and stem sections, which are consumed by gorillas more frequently compared to lower parts. Plants have evolved in an intricate way to adapt to herbivores' attacks.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 7","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.71765","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Contrasting Phylogeographic Patterns of Sandy vs. Rocky Sympatric Sister Species of Supralittoral Tylos Isopods in Chile 智利上海Tylos等足类沙地与岩石同域姊妹种的系统地理格局对比
IF 2.3 2区 生物学
Ecology and Evolution Pub Date : 2025-07-22 DOI: 10.1002/ece3.71803
Luis A. Hurtado, Mariana Mateos, Chang Wang, Violet M. Ndeda, Jorge Pérez-Schultheiss, Martin Thiel
{"title":"Contrasting Phylogeographic Patterns of Sandy vs. Rocky Sympatric Sister Species of Supralittoral Tylos Isopods in Chile","authors":"Luis A. Hurtado,&nbsp;Mariana Mateos,&nbsp;Chang Wang,&nbsp;Violet M. Ndeda,&nbsp;Jorge Pérez-Schultheiss,&nbsp;Martin Thiel","doi":"10.1002/ece3.71803","DOIUrl":"https://doi.org/10.1002/ece3.71803","url":null,"abstract":"<p>Sister taxa that have diverged and persisted in sympatry have likely been exposed to the same general environmental changes throughout their evolutionary history and may thus exhibit similar phylogeographies. Here, we compare the phylogeographic patterns of two sister species of isopods (genus <i>Tylos</i>) that have broadly overlapping distributions but distinct habitat preferences in the supralittoral zone of Chile. The dynamic geoclimatic history of this region during the Quaternary has been implicated in shaping the evolutionary histories of other coastal taxa. <i>Tylos spinulosus</i> is found in sandy beaches at latitudes ~27°–30° S, whereas <i>Tylos chilensis</i> has been found in rocky shores at ~27°–33° S and at ~39°–42° S. We sampled both species across their ranges (collectively from 20 localities) and obtained sequences from at least one mitochondrial gene for 95 <i>T. chilensis</i> and 41 <i>T. spinulosus</i>. We used phylogenetics and population genetics methods to analyze four single-gene and one concatenated datasets: 12S rDNA (<i>n</i> = 130); 16S rDNA (<i>n</i> = 31); Cytochrome oxidase subunit I (<i>n</i> = 28); Cytochrome b (<i>n</i> = 24); concatenation of the four genes (<i>n</i> = 24). Both species show high levels of isolation of local populations, consistent with expectations from their limited autonomous dispersal potential. However, they exhibit strikingly different mitochondrial phylogeographic patterns. <i>Tylos chilensis</i> shows evidence of multiple relatively deep divergence events leading to geographically restricted lineages that appear to have persisted over multiple glaciations. Surprisingly, one lineage of <i>T. chilensis</i> was found in geographically distant localities, suggesting the possibility of human-mediated dispersal. <i>Tylos spinulosus</i> appears to have undergone a relatively recent bottleneck followed by a population/range expansion. Differences in life histories and habitat preferences or stochasticity may have contributed to these striking phylogeographic differences. Finally, the high levels of differentiation and isolation among populations indicate that they are highly vulnerable to extirpation. We discuss threats to their persistence and recommendations for their conservation.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 7","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.71803","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Protected Areas Are Important for the Conservation of Disa engleriana, an Edible Orchid in Malawi 保护区对马拉维的一种可食用兰花Disa engleriana的保护很重要
IF 2.3 2区 生物学
Ecology and Evolution Pub Date : 2025-07-22 DOI: 10.1002/ece3.71778
Blessings Tionge Chingagwe, Gift Gladson Moyo, Elizabeth Mwafongo, Tiwonge I. Mzumara, Jean Cossi Ganglo
{"title":"Protected Areas Are Important for the Conservation of Disa engleriana, an Edible Orchid in Malawi","authors":"Blessings Tionge Chingagwe,&nbsp;Gift Gladson Moyo,&nbsp;Elizabeth Mwafongo,&nbsp;Tiwonge I. Mzumara,&nbsp;Jean Cossi Ganglo","doi":"10.1002/ece3.71778","DOIUrl":"https://doi.org/10.1002/ece3.71778","url":null,"abstract":"<p>Edible orchids are increasingly threatened by unsustainable use in their natural habitats. Several studies highlight the need for propagation to counter this threat. However, a critical gap persists in understanding the environmental conditions that support these species in Malawi. This study aimed to identify potential habitats suitable for propagating edible orchids, focusing on <i>Disa engleriana</i> Kraenzl, 1893, to enhance ex situ conservation efforts. Present and future environmental data were sourced from WorldClim. Species occurrence data were obtained during field surveys and existing datasets. Using MaxEnt, continuous habitat suitability for <i>D. engleriana</i> was modeled based on presence-only occurrence data, Bioclim variables, and elevation. The integration of ArcGIS allowed for a detailed analysis, reclassifying the continuous suitability map into suitable and unsuitable habitats. The results of the study show that most suitable habitats align with the boundaries of protected areas, emphasizing their critical importance in conservation planning. The study further found that suitable habitats for <i>D. engleriana</i> are typically at altitudes between 1500 and 1600 m, with temperatures not exceeding 15°C during the wettest months. In addition to that, the results revealed the negative impact of climate change on habitat suitability, projecting a decrease in suitable areas over the next 50 years.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 7","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.71778","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Size-Dependent Genetic Erosion due to Human Logging and Conservation Recommendation for an Endangered Yew (Taxus fuana) in Tibet, China 西藏濒危红豆杉(Taxus fuana)因人为砍伐而造成的遗传侵蚀及保护建议
IF 2.3 2区 生物学
Ecology and Evolution Pub Date : 2025-07-22 DOI: 10.1002/ece3.71844
Xiao-Lu Shen-Tu, Yan Chen, Jun-Yin Deng, Yao-Bin Song, Ming Dong
{"title":"Size-Dependent Genetic Erosion due to Human Logging and Conservation Recommendation for an Endangered Yew (Taxus fuana) in Tibet, China","authors":"Xiao-Lu Shen-Tu,&nbsp;Yan Chen,&nbsp;Jun-Yin Deng,&nbsp;Yao-Bin Song,&nbsp;Ming Dong","doi":"10.1002/ece3.71844","DOIUrl":"https://doi.org/10.1002/ece3.71844","url":null,"abstract":"<p><i>Taxus fuana</i>, an endemic plant of the West Himalayas, has an extremely small population size and is currently threatened by heavy logging due to its medicinal properties. However, the impacts of human-induced logging on population size and tree size-class distribution, and their consequences for genetic diversity in China remain unclear, constraining conservation efficacy. Field surveys across six Gyirong sites indicated that trees with basal diameters of 6–30 cm experienced the most severe logging damage, particularly at Jilong (JL) and Langjiu (LJ). Both chloroplast DNA (<i>ɸ</i><sub>ST</sub> = 0.138) and nuclear SSR (<i>F</i><sub>ST</sub> = 0.091) revealed significant differentiation among sites. Demographic modeling and gene flow estimates suggest that restricted gene flow and enhanced genetic drift in smaller sites appear to have driven this differentiation. Moreover, genetic diversity declined in a size-dependent manner: larger sites at Kaire (KR) and Jipu (JP) maintained higher haplotype diversity, nucleotide diversity, and allelic richness, whereas smaller sites at LJ and Tangbo (TB) exhibited markedly reduced values. At the individual tree level, sites dominated by small trees (6–30 cm) harbored lower genetic variation and allelic richness than those with a broader size-class distribution, underscoring the link between logging-induced demographic shifts and genetic erosion. We therefore recommend habitat restoration to prevent further logging, while establishing corridors and stepping-stone sites to re-establish gene flow and introducing genetically diverse individuals into sites with a high proportion of small trees.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 7","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.71844","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of Crop Rotation Diversification and Livestock Integration on Above-Ground Arthropod Dynamics Under Conservation Agriculture 轮作多样化和畜禽整合对保护性农业地上节肢动物动态的影响
IF 2.3 2区 生物学
Ecology and Evolution Pub Date : 2025-07-21 DOI: 10.1002/ece3.71788
Amandrie Louw, Johann Strauss, Pia Addison
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