Global Ecology and Conservation最新文献

{"title":"Global invasion risk assessment of Lantana camara, a highly invasive weed, under future environmental change","authors":"Pradeep Adhikari ,&nbsp;Yong Ho Lee ,&nbsp;Prabhat Adhikari ,&nbsp;Anil Poudel ,&nbsp;Sue Hyuen Choi ,&nbsp;Ji Yeon Yun ,&nbsp;Do-Hun Lee ,&nbsp;Yong-Soon Park ,&nbsp;Sun Hee Hong","doi":"10.1016/j.gecco.2024.e03212","DOIUrl":"10.1016/j.gecco.2024.e03212","url":null,"abstract":"<div><div>Invasion risk assessments are essential for making informed decisions, allocating resources, and implementing targeted strategies to prevent or minimize the harmful effects of invasive species on native biodiversity, agricultural productivity, and natural ecosystems. In this study, the random forest algorithm was used to assess the spatial invasion risk of <em>Lantana camara</em>, one of the world’s top 100 worst invasive weeds, across all continents under current and future environmental conditions. The current invasion risk was relatively high on four continents (i.e., Africa, Australia, Oceania, and South America) within approximately 35°N and 35°S latitude, estimated to cover at least 68.98 % of the total land surface. Furthermore, projections for future environmental changes suggested a substantial increase in invasion risk across all continents, with the most significant changes (251.52 %) observed in Europe compared with current invasion levels. Additionally, invasion risk was predicted to extend beyond 35°N latitude. Categorizing 200 countries and territories into distinct risk levels, 27 countries had current invasion potential, and introduction and establishment was predicted in 114 countries. Moreover, at least 45 countries, including Canada, India, Italy, and United States, were projected to transition from no or low invasion risk to high invasion risk and 28 countries had a risk increase of over 50 %. Current study provides valuable insights into the global invasion risk posed by <em>L. camara</em>. These results are expected to be of great utility for invasive weed management, facilitating the development of control and sustainable management strategies for this notorious weed at both global and local scales.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356770","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":"Gastrointestinal parasites of wild Bornean orang-utans (Pongo pygmaeus) in a habitat affected by wildfire smoke","authors":"Abigail L. Gwynn ,&nbsp;Helen C. Morrogh-Bernard ,&nbsp;Alex Thornton ,&nbsp;Hendrik Segah ,&nbsp;Abdul Azis ,&nbsp;Frank J.F. Van Veen","doi":"10.1016/j.gecco.2024.e03214","DOIUrl":"10.1016/j.gecco.2024.e03214","url":null,"abstract":"<div><div>Wildfires are becoming increasingly frequent and severe in the tropical peatlands of Southern Borneo, with major consequences for both wildlife and people that inhabit them. Burning peat releases vast amounts of toxic smoke that, when inhaled, can cause a plethora of health-related issues. With some of the largest remaining populations of Bornean orang-utans (<em>Pongo pygmaeus</em>) being found in peatland forests, wildfires are becoming one of the greatest threats to this Critically Endangered ape, yet the effects of the toxic smoke on their health are unknown. Wildfire has long been known to influence wildlife disease by reducing populations of free-living parasites in the environment (thus altering host exposure), and there is a growing body of evidence to suggest that smoke may affect host susceptibility to such parasites by diminishing physiological condition and immune function. In this study, we investigated parasitic nematode infections in wild Bornean orang-utans inhabiting a drained peatland forest prone to fire and smoke. We identified four gastrointestinal nematode taxa that varied significantly in their prevalence and intensity. Overall prevalence of nematode infection was high, but intensity was relatively low. We present some evidence for an increase the prevalence and intensity of certain nematode taxa after the wildfire smoke event. Namely, an increase in the prevalence of <em>Enterobius</em> spp. and <em>Trichuris</em> spp., and an increase in the intensity of hookworm infections, after the smoke period. We identify the need for multi-year, multi-fire event research to increase sample sizes, along with measuring endocrinological markers of physiological condition, in tandem with parasitological monitoring, to gain a more comprehensive understanding of the impacts of environmental changes on orang-utan health.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356772","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":"Impact of invasive Typha and wetland interspersion on muskrat declines in North America","authors":"Gregory P. Melvin ,&nbsp;Carrie Sadowski ,&nbsp;Jeff Bowman","doi":"10.1016/j.gecco.2024.e03209","DOIUrl":"10.1016/j.gecco.2024.e03209","url":null,"abstract":"<div><div>Muskrat (<em>Ondatra zibethicus</em>) populations are declining in North America. The exact cause of these declines is largely unknown. Along a similar timeframe, wetlands have been experiencing an invasion of cattail (<em>Typha</em>) throughout the continent. Specifically, <em>T.</em> x <em>glauca</em>, a hybrid of native <em>T. latifolia</em> and non-native <em>T. angustifolia</em>, has been increasing in range and abundance. This hybrid is associated with many negative impacts on wetland ecosystems, including reductions in biodiversity, open water habitat, and interspersion of water and emergent vegetation, the latter of which is an important habitat feature for muskrats. We sought to determine the impact of invasive <em>T.</em> x <em>glauca</em> on muskrat populations. We sampled 39 <em>Typha</em>-dominated marshes in southern Ontario, Canada to test the hypotheses that muskrats are declining in North America due to: (1) the increased relative abundance of <em>T.</em> x <em>glauca</em> in marshes, and (2) reduced wetland interspersion, which is associated with <em>T.</em> x <em>glauca</em> invasions. We estimated muskrat population density using house counts, sampled <em>Typha</em> communities to determine the relative abundance of <em>T.</em> x <em>glauca</em>, and measured interspersion using remote sensing techniques. We found that muskrat population density was positively associated with interspersion, but not associated with the relative abundance of <em>T.</em> x <em>glauca</em>. However, most sites were highly dominated by <em>T.</em> x <em>glauca</em>, limiting our inference. Our findings suggest that changing wetland structure may be contributing to muskrat population declines in North America, but more research is needed to determine the full impact of <em>T.</em> x <em>glauca</em> invasions on muskrat population declines.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356768","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":"Effect of local habitat and landscape attributes on bird communities in shade coffee plantations in the Colombian Andes","authors":"Catalina Gonzalez ,&nbsp;Amanda D. Rodewald ,&nbsp;Peter Arcese ,&nbsp;Ruth E. Bennett ,&nbsp;J. Nicolas Hernandez-Aguilera ,&nbsp;Ximena Rueda ,&nbsp;Miguel I. Gómez ,&nbsp;Scott Wilson","doi":"10.1016/j.gecco.2024.e03207","DOIUrl":"10.1016/j.gecco.2024.e03207","url":null,"abstract":"<div><div>Agroforestry is increasingly promoted to support biodiversity conservation by increasing tree cover in agricultural landscapes, but the extent to which landscape context affects how benefits accrue remains uncertain. We used shade-coffee systems to ask how the proximity and extent of forest and forest-agriculture mosaic in the landscape influenced bird communities in 160 coffee plantations that differed in coffee plant density and shade tree richness and abundance in two departments of Colombia with differing regional forest cover. Our findings suggest that regional forest cover and landscape conditions can mediate the response of birds to local habitats on plantations. Avian richness and community completeness was positively related to the amount of forest-agriculture mosaic within landscapes surrounding coffee plantations only within the comparatively forested department of Antioquia (mean 32 % regional forest cover), particularly where plantations had high richness and abundance of trees. In the largely deforested department of Cauca (mean 1 %), neither distance to forest nor cover by forest-agriculture mosaics explained avian richness and community completeness, both of which were positively related only to local tree richness and abundance. We show that biodiversity benefits from increasing habitat quality at local and landscape scales, and habitat quality within plantations becomes increasingly influential as the amount of habitat in the broader landscape declines. Our results emphasize the role of landscape context in conservation planning to promote biodiversity in coffee-growing regions.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356709","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":"Predicting conservation priority areas in Borneo for the critically endangered helmeted hornbill (Rhinoplax vigil)","authors":"C.E.R. Hatten ,&nbsp;Y.Y. Hadiprakarsa ,&nbsp;C.K.F. Lee ,&nbsp;A. Jain ,&nbsp;R. Kaur ,&nbsp;A. Miller ,&nbsp;S. Cheema ,&nbsp;N.J. Au ,&nbsp;S. Khalid ,&nbsp;C. Dingle","doi":"10.1016/j.gecco.2024.e03206","DOIUrl":"10.1016/j.gecco.2024.e03206","url":null,"abstract":"<div><p>The critically endangered helmeted hornbill (<em>Rhinoplax vigil</em>) is under threat around its Southeast Asian range due to hunting and habitat loss. Dependant on primary rainforest habitats, the species is thought to be highly sensitive to habitat disturbance. Compounding this is the threat of climate change where equatorial ecosystems, such as those found on Borneo, are predicted to increase in temperature and precipitation. It is therefore important to identify whether the species’ suitable habitats, both now and in the future, are protected from further anthropogenic disturbance. In this study we used species distribution models to assess the extent of suitable habitat for <em>R. vigil</em> across Borneo, an island which has undergone rapid deforestation in recent years, and a stronghold for the species. Using 302 <em>R. vigil</em> occurrence records, four environmental and three land-use cover variables, we modelled <em>R. vigil</em> current habitat suitability, and two future projections under climate change scenarios RCP 4.5 and RCP 8.5 for 2041–2060. Our results suggest that a quarter of Borneo's landmass is currently suitable for <em>R. vigil</em>. However, there is a steep decline in the predicted suitable habitat from 335,963 km² (current scenario) to 73,170 km² (future RCP 4.5), to 54,839 km² (future RCP 8.5). Our model predicts that the amount of suitable habitat protected by current protected areas (PAs) and the planned Heart of Borneo (HoB) initiative will increase under future climate change, with the HoB protecting &gt; 65 % of <em>R. vigil</em> suitable habitat across all projections. This is likely worsened by future land-use change not included in these models, which is a limitation to our study. We therefore encourage the connectivity of lowland PAs, and the continuation of HoB targets to prevent further decline of <em>R. vigil</em> habitat around Borneo. This study provides the first species-specific spatial assessment of the critically endangered helmeted hornbill distribution in response to climate change across current and planned protected regions in Borneo.</p></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2351989424004104/pdfft?md5=02d05b8b5b71087be72d3b51960fd812&pid=1-s2.0-S2351989424004104-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272647","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":"Assessment of grassland carrying capacity drivers and evaluation of pasture-livestock balance: A case study of Xinjiang, China","authors":"Guangyu Wang ,&nbsp;Yaoming Li ,&nbsp;Lianlian Fan ,&nbsp;Xuexi Ma ,&nbsp;Yuanye Liang ,&nbsp;Tingting Hui ,&nbsp;Wenbo Zhang ,&nbsp;Wei Li ,&nbsp;Jiefei Mao","doi":"10.1016/j.gecco.2024.e03203","DOIUrl":"10.1016/j.gecco.2024.e03203","url":null,"abstract":"<div><p>Evaluating the spatiotemporal variations and driving mechanisms of carrying capacity (CC) is critical for optimizing grassland resource utilization and promoting sustainable development in grassland animal husbandry. This study focuses on Xinjiang, an arid and semi-arid region significantly impacted by environmental changes and human activities. To capture the dynamics of grassland CC, we employed Theil-Sen trend analysis and the Mann-Kendall test to assess spatiotemporal trends. The innovative use of the Geodetector method allowed for a detailed quantification of the influence of various environmental and human-related factors on grassland CC. Additionally, we incorporated livestock data to evaluate the overgrazing conditions of the grassland ecosystem. Our findings demonstrate that: (1) Grassland CC has shown a pronounced overall upward trajectory over the last twenty years, with notable inter-annual fluctuations and significant spatial variations, particularly between the northern and southern regions. (2) The spatial distribution of grassland CC is primarily influenced by precipitation patterns and population density, with key determining factors varying across different types of grasslands. Except for alpine steppe and alpine desert, the spatial distribution of grassland CC was primarily influenced by two-factor interactions, surpassing the impacts of single-factor effects. (3) The overgrazing rate has generally declined, peaking in 2014 and showing the mildest condition in 2017. In comparison, the overgrazing situation in Northern Xinjiang is relatively more favorable, whereas the southern and eastern regions necessitates more immediate and comprehensive ecological restoration and management measures. In summary, this study provides important scientific evidence for prioritizing grassland protection and planning for the sustainable animal husbandry development in arid and semi-arid regions.</p></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2351989424004074/pdfft?md5=e22098ec1ba8f05a48f35fef9052c249&pid=1-s2.0-S2351989424004074-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272646","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":"The dual lens of diversity: Seasonal variability of avian community structure in urban hills","authors":"Xue Wang, Xuan Wang, Shuheng Dai, Feifei Zhai, Jingjing Ding, Lei Wang","doi":"10.1016/j.gecco.2024.e03200","DOIUrl":"https://doi.org/10.1016/j.gecco.2024.e03200","url":null,"abstract":"Urbanization has significantly increased the environmental intricacy of low mountainous and hilly urban landscapes, exacerbating the need for biodiversity conservation in these ecosystems. This study involved comprehensive bird surveys across four seasons from July 2022 to April 2023 along 64 transects in the low mountainous terrain of Jiangsu Province. Adopting a dual lens of taxonomic and functional dimensions, our research explored seasonal fluctuations and assembly mechanisms governing avian community diversity (both α and β) on these urban hills. The results showed that species richness and functional diversity (FD) were higher in spring and lower in autumn, whereas functional mean pairwise distance (MFD) and mean nearest functional distance (FD.MNTD) were higher in summer and winter. Although the standardized effect sizes for MFD were not significantly different from zero in any of the four periods, those for FD.MNTD were significantly less than zero in summer, autumn, and winter, indicating a propensity for functional trait clustering within avian communities during these seasons. Taxonomic variations were found to be chiefly governed by species turnover, whereas functional dynamics were principally shaped by nestedness. A marked disparity emerged, with functional β-diversity and its turnover components consistently registering lower values than their taxonomic counterparts, accompanied by a higher level of functional nestedness versus taxonomic nestedness. This study underscores the intricate seasonal dynamics of avian communities in urbanized low mountainous regions and provides crucial insights to devise conservation strategies aimed at preserving avian biodiversity within these ecologically complex urban landscapes.","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142248754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of precipitation changes and warming on vegetation–soil–microbial relationships in desert grasslands","authors":"Yi Zhang, Jian-Ping Li, Ying-Zhong Xie, Xiao-Yan Li, Xu Luo, Xumei Huang, Yu-Tao Wang, Jianfei Yv, Xiaoqian Liang","doi":"10.1016/j.gecco.2024.e03205","DOIUrl":"https://doi.org/10.1016/j.gecco.2024.e03205","url":null,"abstract":"Vegetation–soil–microbial relationships significantly affect global climatic and environmental changes. Fluctuations in temperature and precipitation caused by climate change are the driving forces of dynamic changes in vegetation–soil–microbial relationships. Our study was conducted in the desert grassland of Ningxia, China, and involved five levels of annual precipitation (33 % (R33), 66 % (R66), 100 % (RCK), 133 % (R133), and 166 % (R166)) and two temperature levels (within and outside the open-top chamber). Our objective was to determine how vegetation–soil–microbial relationships in desert grasslands respond to changes in precipitation and warming. Our results showed that precipitation was positively correlated with above-ground living and root biomass, and soil organic carbon. R166 had the strongest effect on the correlation between vegetation, soil, and microbes, whereas R33 had the weakest effect. Temperature was positively correlated with soil microbial <ce:italic>α-</ce:italic>diversity, and the effect of warming on the correlation among vegetation, soil, and microbes was less significant than under natural temperature. The combination of precipitation and warming was positively correlated with the above-ground living biomass and soil respiration. The correlation effects of the combination of precipitation and warming on vegetation, soil, and microbes were more substantial than those of precipitation and warming. Our findings provide a theoretical basis for the formulation of reasonable response strategies for desert steppe ecosystems.","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142248755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of macroalgae on reef-building corals depends on their species, density, and contact status","authors":"Xinming Lei, Chengyue Liu, Xiaolei Yu, Yong Luo, Yuyang Zhang, Jianhui Yang, Guowei Zhou, Hui Huang","doi":"10.1016/j.gecco.2024.e03201","DOIUrl":"https://doi.org/10.1016/j.gecco.2024.e03201","url":null,"abstract":"Coral reefs are severely threatened by global and local disturbances that can shift reefs from coral to algal dominance. Coral-macroalgae competition is expected to exacerbate coral decline as the interactions increase in frequency. Whereas numerous studies over the last decade have aimed to characterize the interactions and impacts on coral growth and physiology, the underlying mechanisms remain controversial. This study tested the impact of different macroalgal species, densities, and contact status with corals on the physiological response of corals in Sanya Reefs. The results revealed that direct contact with increasing densities of fleshy macroalgae had a negative impact on the photosynthesis, growth rate, and tissue biomass of the two common corals. However, calcified macroalgae did not significantly affect the corals, regardless of whether there was direct contact or not. Under the same conditions, <ce:italic>Acropora intermedia</ce:italic> appeared to be more susceptible to fleshy macroalgae compared to <ce:italic>Porites lutea</ce:italic>. This suggested that different corals varied in their susceptibility to various macroalgae. Additionally, the results of the generalized linear mixed model revealed that macroalgal species and contact status with corals were the most important predictors of the impacts of macroalgae on corals, and macroalgal density was another nonnegligible parameter. Overall, macroalgae may have caused a potential functional shift in the composition of coral assemblages on the Sanya reefs by further reducing the already depauperate reef-building coral populations. The negative impacts of macroalgae in Sanya Reefs may serve as an early warning that the persistence of the invaluable ecological functions provided by coral reefs will be increasingly threatened throughout the South China Sea. Our findings could contribute to improving the scientific and effective management practices, fostering sustainable coral reef development in China and beyond.","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142248784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patch shape, connectivity and functional groups moderate the responses of bird diversity to agricultural diversification — A meta-analysis","authors":"Yang Xu ,&nbsp;Zhi Wu ,&nbsp;Xiaorong Liu ,&nbsp;Qingbin Han ,&nbsp;Ping Liu ,&nbsp;Dairong Wang ,&nbsp;Jiayou Wang","doi":"10.1016/j.gecco.2024.e03204","DOIUrl":"10.1016/j.gecco.2024.e03204","url":null,"abstract":"<div><p>Agricultural expansion and intensification pose significant threats to global biodiversity. However, the conservation of agricultural biodiversity is essential for harmonizing agricultural production with ecological sustainability. Agricultural diversification can mitigate the negative impacts of agriculture on ecosystem functioning and biodiversity. Characteristics of the broader landscape may also play an important moderating role in diversified agricultural landscapes, but are not fully solved. To bridge this gap, we conducted a meta-analysis of peer-reviewed studies to compare bird abundance and species richness in diversified agricultural landscapes compared to those in simplified farmlands and natural landscapes. We also explored the moderating role of species functional groups and 11 metrics of landscape composition, configuration and heterogeneity. We found a generally positive effect of perimeter-to-area ratio of farmland patches, connectivity within farmland patches, and connectivity within patches of natural and semi-natural habitats on bird abundance and species richness. Responses to other landscape metrics were less consistent. For pollinators, the abundance was higher in diversified agricultural landscapes compared to control groups, and particularly when compared to natural landscapes. For natural enemies, the species richness was significantly lower in diversified agricultural landscapes than in natural landscapes, while their abundance was not. The overall abundance and species richness of granivores and frugivores in diversified agricultural landscapes were comparable to those in control landscapes. These results indicated landscape type of control groups, species functional groups, and their interactions had consistent impacts on the responses of bird diversity. We found a vital role of farmland patch shape and connectivity within farmland and habitat patches for bird conservation in diversified agricultural landscapes, which has been rarely reported in previous studies. These insights underscore the need for policymakers and managers to develop farmland management and planning strategies at multiple scales to fulfill growing human demands while achieving biodiversity conservation objectives.</p></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2351989424004086/pdfft?md5=740e149d9a2a9ca2b3a8c9f3be97b667&pid=1-s2.0-S2351989424004086-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272645","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}