Landscape Ecology最新文献

{"title":"Partitioning genetic structure of a subterranean rodent at multiple spatial scales: accounting for isolation by barriers, distance, and environment","authors":"Nathan Alexander, Bradley J. Cosentino, Robert L. Schooley","doi":"10.1007/s10980-024-01878-0","DOIUrl":"https://doi.org/10.1007/s10980-024-01878-0","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>Understanding genetic structure at multiple spatial scales and identifying drivers of genetic isolation are important for developing comprehensive conservation plans including for grassland conservation efforts. However, few studies account for multiple genetic isolation processes nor partition genetic variance among these processes.</p><h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>We assess key processes that can create spatial genetic patterns including isolation by barrier (IBB), isolation by distance (IBD), and isolation by environment (IBE) for a widespread pocket gopher species (<i>Geomys bursarius</i>) and a spatially restricted subspecies (<i>Geomys bursarius illinoensis</i>). We further partition genetic variation to each isolating effect and identify genetic variation that was shared between processes.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>We used seven microsatellites to determine spatial genetic clustering and identify environmental factors impacting genetic similarities. Then, we used redundancy analysis to partition variance explained by IBB, IBD, and IBE.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Major rivers including the Mississippi River acted as barriers and explained the most genetic variation across the species. In contrast, IBD explained the most genetic variation for <i>G. b. illinoensis</i>. Gophers had genetic associations to soil sand percent and soil color, but IBE uniquely explained a small amount of genetic structure for <i>G. bursarius,</i> with additional variation shared with other isolating processes.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Gopher genetic structure resulted from barriers, distance, and environmental factors at the species range as well as for a subspecies’ region, but the relative amount of genetic variance assigned to unique isolating processes differed between scales. Delineation of conservation units should consider major rivers as natural boundaries, and finer-scale management should identify and protect areas close to source populations with similar soil friability. Our study exemplifies how analyzing gene flow at rangewide and regional scales can aid managers in developing localized strategies that fit within broader conservation units.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"4 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140617673","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":"Higher crop rotational diversity in more simplified agricultural landscapes in Northeastern Germany","authors":"Josepha Schiller, Clemens Jänicke, Moritz Reckling, Masahiro Ryo","doi":"10.1007/s10980-024-01889-x","DOIUrl":"https://doi.org/10.1007/s10980-024-01889-x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>Both crop rotational diversity and landscape diversity are important for ensuring resilient agricultural production and supporting biodiversity and ecosystem services in agricultural landscapes. However, the relationship between crop rotational diversity and landscape diversity is largely understudied.</p><h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>We aim to assess how crop rotational diversity is spatially organised in relation to soil, climate, and landscape diversity at a regional scale in Brandenburg, Germany.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>We used crop rotational richness, Shannon’s diversity and evenness indices per field per decade (i.e., crop rotational diversity) as a proxy for agricultural diversity and land use and land cover types and habitat types as proxies for landscape diversity. Soil and climate characteristics and geographical positions were used to identify potential drivers of the diversity facets. All spatial information was aggregated at 10 × 10 km resolution, and statistical associations were explored with interpretable machine learning methods.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Crop rotational diversity was associated negatively with landscape diversity metrics and positively with soil quality and the proportion of agricultural land use area, even after accounting for the other variables.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>Our study indicates a spatial trade-off between crop and landscape diversity (competition for space), and crop rotations are more diverse in more simplified landscapes that are used for agriculture with good quality of soil conditions. The respective strategies and targets should be tailored to the corresponding local and regional conditions for maintaining or enhancing both crop and landscape diversity jointly to gain their synergistic positive impacts on agricultural production and ecosystem management.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"35 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140601624","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":"Lack of social data hinders integrative urban ecology research: obstacles and opportunities","authors":"Ganlin Huang, Liyuan Chen, Morgan Grove, Weiqi Zhou, Steward Pickett","doi":"10.1007/s10980-024-01892-2","DOIUrl":"https://doi.org/10.1007/s10980-024-01892-2","url":null,"abstract":"","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"97 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140601467","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":"Shifts in ecological patterns and processes under global changes","authors":"Mingzhen Lu, Lifei Wang, Lixin Wang, Qinfeng Guo, Songlin Fei","doi":"10.1007/s10980-024-01863-7","DOIUrl":"https://doi.org/10.1007/s10980-024-01863-7","url":null,"abstract":"","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"48 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140601470","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":"Genetic consequences of landscape features in two rear edge, highly fragmented metapopulations of a mediterranean conifer","authors":"Camilla Avanzi, Alessandro Vitali, Paolo Piovani, Ilaria Spanu, Carlo Urbinati, Giovanni Giuseppe Vendramin, Matteo Garbarino, Andrea Piotti","doi":"10.1007/s10980-024-01887-z","DOIUrl":"https://doi.org/10.1007/s10980-024-01887-z","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>Habitat fragmentation is expected to erode genetic diversity, which instead needs to be preserved for promoting species adaptation to a changing climate. As this expectation has found mixed support in forest trees, consistent results on the genetic consequences of fragmentation requires adequately replicated experimental designs, as well as an explicit assessment of which landscape features, if any, could mitigate its detrimental effects.</p><h3 data-test=\"abstract-sub-heading\">Objective</h3><p>Evaluating the role of several landscape attributes in buffering the detrimental effects of fragmentation in two metapopulations of silver fir.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>We genotyped 904 silver fir (<i>Abies alba</i> Mill.) trees from 18 local populations forming two metapopulations comparable for size and extension in the Apennines, a Mediterranean mountain range. We identified the signatures left by the fragmentation process on the genetic features of silver fir local populations. After removing potentially confounding effects due to different evolutionary histories, we used a multivariate approach for testing the relative effect of demographic, geographic, environmental and topographic factors on genetic features of both metapopulations.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>We found comparable signals of the habitat fragmentation impact on the genetic diversity and structure of both investigated metapopulations. Fragmentation effects were less pronounced in the largest local populations (but not the least isolated), located on gentler slopes with higher soil water availability and lower heat exposure.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Our results suggest the existence of a set of demographic and environmental factors that could have coherently buffered the detrimental genetic effects of fragmentation in both metapopulations. These findings could be useful to plan landscape restoration for the evolutionary rescue of mixed forests that once characterized Mediterranean mountain ecosystems.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"57 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140601365","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 relationships between biotic uniqueness and abiotic uniqueness are context dependent across drainage basins worldwide","authors":"Henna Snåre, Jorge García-Girón, Janne Alahuhta, Luis Mauricio Bini, Pál Boda, Núria Bonada, Leandro S. Brasil, Marcos Callisto, Diego M. P. Castro, Kai Chen, Zoltán Csabai, Thibault Datry, Sami Domisch, Jaime R. García-Marquez, Mathieu Floury, Nikolai Friberg, Brian A. Gill, Juan David González-Trujillo, Emma Göthe, Peter Haase, Neusa Hamada, Matthew J. Hill, Jan Hjort, Leandro Juen, Jonathan F. Jupke, Ana Paula Justino de Faria, Zhengfei Li, Raphael Ligeiro, Marden S. Linares, Ana Luiza-Andrade, Diego R. Macedo, Kate L. Mathers, Andres Mellado-Diaz, Djuradj Milosevic, Nabor Moya, N. LeRoy Poff, Robert J. Rolls, Fabio O. Roque, Victor S. Saito, Leonard Sandin, Ralf B. Schäfer, Alberto Scotti, Tadeu Siqueira, Renato Tavares Martins, Francisco Valente-Neto, Beixin Wang, Jun Wang, Zhicai Xie, Jani Heino","doi":"10.1007/s10980-024-01883-3","DOIUrl":"https://doi.org/10.1007/s10980-024-01883-3","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>Global change, including land-use change and habitat degradation, has led to a decline in biodiversity, more so in freshwater than in terrestrial ecosystems. However, the research on freshwaters lags behind terrestrial and marine studies, highlighting the need for innovative approaches to comprehend freshwater biodiversity.</p><h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>We investigated patterns in the relationships between biotic uniqueness and abiotic environmental uniqueness in drainage basins worldwide.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>We compiled high-quality data on aquatic insects (mayflies, stoneflies, and caddisflies at genus-level) from 42 drainage basins spanning four continents. Within each basin we calculated biotic uniqueness (local contribution to beta diversity, LCBD) of aquatic insect assemblages, and four types of abiotic uniqueness (local contribution to environmental heterogeneity, LCEH), categorized into upstream land cover, chemical soil properties, stream site landscape position, and climate. A mixed-effects meta-regression was performed across basins to examine variations in the strength of the LCBD-LCEH relationship in terms of latitude, human footprint, and major continental regions (the Americas versus Eurasia).</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>On average, relationships between LCBD and LCEH were weak. However, the strength and direction of the relationship varied among the drainage basins. Latitude, human footprint index, or continental location did not explain significant variation in the strength of the LCBD-LCEH relationship.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>We detected strong context dependence in the LCBD-LCEH relationship across the drainage basins. Varying environmental conditions and gradient lengths across drainage basins, land-use change, historical contingencies, and stochastic factors may explain these findings. This context dependence underscores the need for basin-specific management practices to protect the biodiversity of riverine systems.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"80 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140601460","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":"Behaviour and landscape contexts determine the effects of artificial light on two crepuscular bird species","authors":"","doi":"10.1007/s10980-024-01875-3","DOIUrl":"https://doi.org/10.1007/s10980-024-01875-3","url":null,"abstract":"<h3>Abstract</h3> <span> <h3>Context</h3> <p>Artificial light at night (ALAN) is increasing worldwide, with many ecological effects. Aerial insectivores may benefit from foraging on insects congregating at light sources. However, ALAN could negatively impact them by increasing nest visibility and predation risk, especially for ground-nesting species like nightjars (<em>Caprimulgidae</em>).</p> </span> <span> <h3>Objectives</h3> <p>We tested predictions based on these two alternative hypotheses, potential foraging benefits vs potential predation costs of ALAN, for two nightjar species in British Columbia: Common Nighthawks (<em>Chordeiles minor</em>) and Common Poorwills (<em>Phalaenoptilus nuttallii</em>).</p> </span> <span> <h3>Methods</h3> <p>We modeled the relationship between ALAN and relative abundance using count data from the Canadian Nightjar Survey. We distinguished territorial from extra-territorial Common Nighthawks based on their wingboom behaviour.</p> </span> <span> <h3>Results</h3> <p>We found limited support for the foraging benefit hypothesis: there was an increase in relative abundance of extra-territorial Common Nighthawks in areas with higher ALAN but only in areas with little to no urban land cover. Common Nighthawks’ association with ALAN became negative in areas with 18% or more urban land cover. We found support for the nest predation hypothesis: the were strong negative associations with ALAN for both Common Poorwills and territorial Common Nighthawks.</p> </span> <span> <h3>Conclusions</h3> <p>The positive effects of ALAN on foraging nightjars may be limited to species that can forage outside their nesting territory and to non-urban areas, while the negative effects of ALAN on nesting nightjars may persist across species and landscape contexts. Reducing light pollution in breeding habitat may be important for nightjars and other bird species that nest on the ground.</p> </span>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"27 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140302257","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":"Neglected puzzle pieces of urban green infrastructure: richness, cover, and composition of insect-pollinated plants in traffic-related green spaces","authors":"Oksana Skaldina, Annika Nylund, Satu Ramula","doi":"10.1007/s10980-024-01881-5","DOIUrl":"https://doi.org/10.1007/s10980-024-01881-5","url":null,"abstract":"&lt;h3 data-test=\"abstract-sub-heading\"&gt;Context&lt;/h3&gt;&lt;p&gt;In cities, insect-pollinated vascular plants enhance environmental quality, support pollinators, and provide essential ecosystem services for citizens. However, floral communities associated with traffic-related green spaces are rarely considered valuable elements of urban green infrastructure (UGI).&lt;/p&gt;&lt;h3 data-test=\"abstract-sub-heading\"&gt;Objectives&lt;/h3&gt;&lt;p&gt;The main objective of this work was to assess if traffic-related green spaces in Finland possess species-rich floral communities and can assist urban ecological restoration—converting degraded areas into functionally diverse ecosystems. Thus, we evaluated richness, cover, and community composition of insect-pollinated plants (emphasizing flowering ones) on traffic islands, parking lots, and road verges.&lt;/p&gt;&lt;h3 data-test=\"abstract-sub-heading\"&gt;Methods&lt;/h3&gt;&lt;p&gt;The assessment was performed during the mean flowering phenophase of insect-pollinated plants in the European boreal zone (July and August) using a standard quadrat (1 m&lt;sup&gt;2&lt;/sup&gt;) placement method. We studied plants in urban and suburban locations of three highly populated (&gt; 170 000 inhabitants) Finnish cities—Helsinki, Tampere, and Turku. There were 90 sampling sites with 15 replicates per location type in each city and five measurement replicates per green space (habitat) type. The species richness, cover, and composition were assessed in relation to location, habitat type, city, the average daily traffic (ADT), and distance to the road.&lt;/p&gt;&lt;h3 data-test=\"abstract-sub-heading\"&gt;Results&lt;/h3&gt;&lt;p&gt;Urban locations had lower total plant species richness and fewer indicator species (characterized only by a single indicator species) compared to suburban locations (characterized by five indicator species). Species richness of plants flowering during the time of the survey did not differ among locations. Traffic islands were richer habitats for flowering plants than road verges but did not differ from parking lots. Total vegetation cover and cover of insect-pollinated flowering plants increased with an increasing distance from the road. Vegetation cover differed among habitats being higher on road verges than on traffic islands irrespective of ADT. In all habitat types, the two most common flowering species were yarrow &lt;i&gt;Achillea millefolium&lt;/i&gt; and autumn hawkbit &lt;i&gt;Leontodon autumnalis&lt;/i&gt; which occurred at 70.2% and 67.8% of the sampling sites, respectively. However, the mean cover of the ten most common flowering species (when present) was low and varied between 1.5 and 9.5% per m&lt;sup&gt;2&lt;/sup&gt;.&lt;/p&gt;&lt;h3 data-test=\"abstract-sub-heading\"&gt;Conclusions&lt;/h3&gt;&lt;p&gt;Similar richness of flowering plants (but not total plant species) in urban and suburban locations might indicate equal importance of ecosystem services provided by flowering plants in cities irrespective of location. Because traffic islands and parking lots contain rich plant communities, they should be better integrated into UGI and value","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"31 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140201946","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":"Cut vs. fire: a comparative study of the temporal effects of timber harvest and wildfire on ecological indicators of the boreal forest","authors":"Ian N. Best, Leonie Brown, Che Elkin, Laura Finnegan, Cameron J. R. McClelland, Chris J. Johnson","doi":"10.1007/s10980-024-01882-4","DOIUrl":"https://doi.org/10.1007/s10980-024-01882-4","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>Large-scale natural disturbances are crucial drivers of ecosystem function and composition for many forested ecosystems. In the last century, the prevalence of anthropogenic disturbances has increased across Canada’s boreal forest. Habitat disturbance from timber harvest and wildfire is linked to declines of boreal species, including woodland caribou (<i>Rangifer tarandus caribou</i>).</p><h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>We tested how disturbances influenced the recovery trajectory of ecological indicators of timber, biodiversity, and wildlife habitat through time following timber harvest and wildfire across the boreal forest of Alberta, Canada.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>During 2021 and 2022, we collected field data from 251 timber harvested and 264 burned stands (0–40 years since disturbance), as well as 256 older forest stands used by caribou (&gt; 40 years since disturbance). Field data included metrics of stand attributes (e.g., basal area, stems per hectare), coarse woody debris (CWD), and abundance of forage for caribou, moose (<i>Alces americanus</i>), and bears (black bear: <i>Ursus americanus</i>, grizzly bear: <i>Ursus arctos</i>).</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Basal area of trees and stems per hectare recovered more quickly in timber harvest sites when compared to wildfire sites, but as time since disturbance increased there were no differences in these attributes among timber harvest, wildfire, and caribou use sites. CWD was greatest in recently burned sites, but declined over time to be similar in quantity as in harvested stands and older forest stands. Terrestrial lichens, important forage for caribou, were most abundant in the older caribou use sites, whereas forage for moose and bears, including shrubs, was most abundant in younger timber harvest and wildfire sites.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Our results demonstrate that timber harvesting may result in a quicker development of timber volume when compared to wildfire. However, this anthropogenic disturbance is less advantageous for the development of caribou habitat.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"304 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140201866","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":"Decreased river runoff on the Mongolian Plateau since around 2000","authors":"Wenhua Qi, Xiaomei Hu, Hao Bai, Asadilla Yusup, Qinwei Ran, Hui Yang, Haijun Wang, Zurui Ao, Shengli Tao","doi":"10.1007/s10980-024-01877-1","DOIUrl":"https://doi.org/10.1007/s10980-024-01877-1","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>Mongolian Plateau is one of the largest contingent arid and semi-arid regions of the world. Rivers on the plateau provide vital water for millions of indigenous Mongolian people and numerous endangered wildlife, but are increasingly disturbed by climate change and human activities. Yet, long-term changes in river runoff across the plateau remain poorly studied due to data unavailability.</p><h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>This study aimed to analyze the temporal trends in gauged river runoff on the Mongolian Plateau, identify drivers of the observed changes, and evaluate CMIP6 models' performance in simulating historical runoff changes across the plateau.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>We compiled possibly the largest database of long-term (20 - 71 years) river runoff for the plateau comprising measurements over 30 major rivers. Statistical analyses were conducted to assess trends in river runoff and correlations between runoff and climatic variables. Additionally, we applied the Budyko curve framework to identify the influence of human activities on river runoff in specific basins. Furthermore, we compared ground-measured runoff data with simulations from CMIP6 models to evaluate the ability of CMIP6 models to replicate runoff dynamics in typical arid and semi-arid regions.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>We observed pervasive and abrupt reduction in runoff in 21 out of the 30 rivers within 5 years before or after the year of 2000. Variations in river runoff were most significantly caused by changes in total precipitation (TP). In particular, 27 rivers experienced abrupt TP changes around 2000, and there was a significant positive correlation between annual fluctuations in TP and river runoff for 18 rivers. In addition to climate factors, the influence of human activities was identified in certain basins. The CMIP6 simulations failed to capture the abrupt changes in runoff occurred pervasively across the plateau around 2000.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Around 2000, major rivers on the Mongolian Plateau, especially in Inner Mongolia, experienced runoff declines, primarily due to TP changes. Human activities like dam construction and water diversion further influenced local runoff. CMIP6 historical runoff simulations were inaccurate across the plateau, highlighting the difficulty of simulating river runoff in this critical region. Our study could contribute to a more comprehensive understanding of the water resource changes on the Mongolian Plateau, with direct implications for enhancing ecological conservation and management practice.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"2016 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140201971","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}