Landscape Ecology最新文献

{"title":"Estimation of flint hills tallgrass prairie productivity and fuel loads: a model-based synthesis and extrapolation of experimental data.","authors":"Robert B McKane, Jonathan J Halama, Bradley L Barnhart, Allen F Brookes, Kevin S Djang, Sonali Chokshi, Paul P Pettus, Brenda Groskinsky, Gina Grier, Andy Hawkins, Douglas Watson, Jayson Prentice, John M Blair, Douglas G Goodin, Loretta C Johnson, Adam M Skibbe, Marc Stieglitz, Feifei Pan, Alex Abdelnour","doi":"10.1007/s10980-024-02034-4","DOIUrl":"10.1007/s10980-024-02034-4","url":null,"abstract":"<p><strong>Context: </strong>The > 25,000 km² Flint Hills ecoregion in eastern Kansas and northeastern Oklahoma, USA, is an economically and ecologically important area encompassing the largest remaining tallgrass prairie ecosystem in North America. Prescribed fires are used routinely to control invasive woody species and improve forage production for the beef-cattle industry. However, burning releases harmful pollutants that, at times, contribute to air quality problems for communities across a multi-state area.</p><p><strong>Objectives: </strong>Establish a modeling framework for synthesizing long-term ecological data in support of Flint Hills tallgrass prairie management goals for identifying how much, where, and when rangeland burning can be conducted to maximize ecological and economic benefits while minimizing regional air quality impacts.</p><p><strong>Methods: </strong>We used EPA's VELMA ecohydrology model to synthesize long-term experimental data at the 35 km² Konza Prairie Biological Station (KPBS) describing the effects of climate, fire, grazing, topography, and soil moisture and nutrient dynamics on tallgrass prairie productivity and fuel loads; and to spatially extrapolate that synthesis to estimate grassland productivity and fuel loads across the nearly 1000 times larger Flint Hills ecoregion to support prescribed burning smoke trajectory modeling using the State of Kansas implementation of the U.S. Forest Service BlueSky framework.</p><p><strong>Results: </strong>VELMA provided a performance-tested synthesis of KPBS data from field observations and experiments, thereby establishing a tool for regionally simulating the combined effects of climate, fire, grazing, topography, soil moisture, and nutrients on tallgrass prairie productivity and fuel loads. VELMA's extrapolation of that synthesis allowed difficult-to-quantify fuel loads to be mapped across the Flint Hills to support environmental decision making, such as forecasting when, where, and how prescribed burning will have the least impact on downwind population centers.</p><p><strong>Conclusions: </strong>Our regional spatial and temporal extrapolation of VELMA's KPBS data synthesis posits that the effects of integrated ecohydrological processes operate similarly across tallgrass prairie spatial scales. Based on multi-scale performance tests of the VELMA-BlueSky toolset, our multi-institution team is confident that it can assist stakeholders and decision makers in realistically exploring tallgrass prairie management options for balancing air quality, tallgrass prairie sustainability, and associated economic benefits for the Flint Hills ecoregion and downwind communities.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"40 24","pages":"1-27"},"PeriodicalIF":4.0,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12013701/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064818","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 impacts on crop yield: direct and indirect roles of arthropods and associated ecosystem services in European farmland.","authors":"Roman Bucher, Péter Batáry, Julia Baudry, Léa Beaumelle, Andrea Čerevková, Enrique G de la Riva, El Aziz Djoudi, Tara Dirilgen, Róbert Gallé, Emmanuelle Kesse-Guyot, Alison O'Reilly, Ewa Rembiałkowska, Adrien Rusch, Henrik G Smith, Dara A Stanley, Stuart P M Roberts, Werner Ulrich, Klaus Birkhofer","doi":"10.1007/s10980-025-02117-w","DOIUrl":"10.1007/s10980-025-02117-w","url":null,"abstract":"<p><strong>Context: </strong>Land-use intensification to increase yields is often detrimental to biodiversity undermining the provision of ecosystem services. However, it is questionable if ecosystem service providers contribute to ecological intensification by achieving the same or higher yields than conventional high-intensity agriculture.</p><p><strong>Objectives: </strong>In this study, we aimed to disentangle the effects of local and landscape-scale land-use intensification on arthropod communities and their contribution to ecosystem services and crop yield. A set of meta-analytic structural equation models allowed us to assess direct and indirect relationships in the cascade from land use to yield.</p><p><strong>Methods: </strong>We selected 37 datasets containing information on land use, community composition, levels of pollination and natural pest control services, and crop yield. We quantified functional diversity of communities by collecting trait information for three exemplary groups of service-providers: bees, ground beetles, and spiders.</p><p><strong>Results: </strong>Local land-use intensification reduced the abundance of all arthropod groups. Spiders were the only group whose species richness was negatively related to a higher percentage of arable land in the landscape. High abundance of bees related positively to oilseed rape pollination and crop yields. In the models for the two predator groups, crop yield was strongly determined by land use, independent of the pest control services provided by natural enemies.</p><p><strong>Conclusions: </strong>Our results suggest a potential for ecological intensification mediated by land-use change in crops where pollination benefits yield, but suggest more nuanced effects for pest control. Our study also calls for experiments on multiple taxonomic groups and ecosystem services that apply comparable methods at similar scales.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s10980-025-02117-w.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"40 5","pages":"97"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12058943/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144052548","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":"Characterizing landscape configuration effects on eastern spruce budworm infestation dynamics.","authors":"Tommaso Trotto, Nicholas C Coops, Alexis Achim, Sarah E Gergel, Dominik Roeser","doi":"10.1007/s10980-025-02203-z","DOIUrl":"https://doi.org/10.1007/s10980-025-02203-z","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Context: &lt;/strong&gt;Spruce budworm (&lt;i&gt;Choristoneura fumiferana&lt;/i&gt;, Clem, SBW) is the largest defoliator of boreal and mixedwood forests in North America. Its impact is directly linked to the quality and availability of primary host species such as balsam fir (&lt;i&gt;Abies balsamea&lt;/i&gt;, (L.) Mill.) at the stand level. At the landscape level, the ability of SBW to disperse over long distances suggests that the configuration of available resources may also play an important role in affecting infestation success and outcomes.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Objectives: &lt;/strong&gt;We hypothesized that fragmented landscapes characterized by smaller and more dispersed conifer patches intermixed with other land cover types may promote infestations thanks to the ability of SBW to saturate the landscape and avidly consume limited resources. To test our hypothesis, we investigated to what degree landscape configuration plays a significant role in modulating defoliations using spectrally-segmented forest stands. Next, we determined the major drivers of infestation probabilities and how they have evolved as a result of landscape configuration changes.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;We capitalized on a combination of Landsat imagery, Forest Resource Inventory (FRI) data, and probability estimates from random forest models to investigate multi-scale effects of landscape configuration on SBW infestations over 13 years in eastern Quebec, Canada, in a spatially-explicit fashion. Based on annual best available pixel composites of surface reflectance derived from Landsat, we superimposed a 400 m tessellation over which we extracted six landscape configuration metrics describing area, aggregation, and shape for infested and non-infested conifer forest patches. Next, probability estimates from two sets of random forest models were extracted from the configuration metrics at annual time steps and for the entire length of the time series.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;Landscapes characterized by greater fragmentation of conifer patches had a higher risk of infestation. In such landscapes, greater fragmentation was indicated by smaller and more variable-sized conifer patches, with a mean patch area &lt; 40 ha (CV &gt; 100 ha) and a landscape patch index &lt; 50 %. In addition, such areas had more isolated patches and more complex shapes, as indicated by cohesion &lt; 97 %, landscape shape index &gt; 3, and shape &gt; 1.35. The landscape patch index, quantifying the percentage of landscape covered by the largest coniferous patch, had the greatest influence on SBW infestations. These results confirmed our initial hypothesis that a higher level of fragmentation of conifer patches may favor infestation establishment.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions: &lt;/strong&gt;We demonstrated the use of freely available Landsat imagery to extract configuration metrics in a spatially-explicit fashion. Further, we highlighted the value of using probability estimates to capture landscape configurations at higher risk of infestati","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"40 9","pages":"183"},"PeriodicalIF":3.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12380986/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144979421","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":"Not just species recording: the potential of citizen science for habitat monitoring.","authors":"Ailidh E Barnes, Michael J O Pocock, Maddie M Harris, Niki Newton, Robert A Robinson","doi":"10.1007/s10980-025-02155-4","DOIUrl":"https://doi.org/10.1007/s10980-025-02155-4","url":null,"abstract":"<p><strong>Context: </strong>Reversing the global biodiversity crisis requires not only conservation and management of species, but the habitats in which they live. While there is a long history of biodiversity recording by volunteers, at least in Europe, information on habitats is less frequently recorded. Habitat data is needed to map and monitor habitat extent and condition; to train and validate earth observation (EO) data; and to explain biodiversity change. The complexity of habitat classifications means that it is challenging to record habitat well, but citizen science provides diverse opportunities to improve the range and scale of habitat recording.</p><p><strong>Objectives/methods: </strong>We reviewed how citizen science can complement surveys by professionals and EO for habitat recording, and discuss its opportunities and challenges. We summarised a survey of 458 volunteer biodiversity recorders asked about their interest in and barriers to recording habitat. From this we developed a framework of questions to design citizen science that is appropriate and effective for habitat recording.</p><p><strong>Results/conclusions: </strong>We found that existing biodiversity recorders were willing to consider habitat recording, but many lacked confidence and some lacked motivation. Our framework of six questions addresses the interplay between volunteer motivation and confidence, and data accuracy. It highlighted design considerations such as clarity of purpose, cost to volunteers, protocol complexity and scale of sampling. This impacts the training and support required by volunteers. Building this understanding into citizen science design enables us to develop activities that meet the needs for habitat data for monitoring, EO validation and research.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s10980-025-02155-4.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"40 9","pages":"181"},"PeriodicalIF":3.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12380648/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144979439","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":"Leveraging sequential least-cost modelling to uncover multiple introductions: a case study of an invasive wild bee species.","authors":"Christa Rohrbach, Gudrun Wallentin, Jovana Bila Dubaić, Julia Lanner","doi":"10.1007/s10980-025-02188-9","DOIUrl":"10.1007/s10980-025-02188-9","url":null,"abstract":"<p><strong>Context: </strong>Invasive species pose a significant threat to biodiversity, creating a need for accurate methods to assess their spread. Although multiple introductions are common, estimates of expansion rates often assume a single introduction site due to limited knowledge of population structure.</p><p><strong>Objectives: </strong>This multidisciplinary study aimed to develop a novel spatio-temporal approach to delineate potential populations without prior knowledge of population structure. We applied this approach to the Sculptured Resin Bee, Europe's first non-native bee species, providing regional expansion rate estimates for its spread across Europe.</p><p><strong>Methods: </strong>Observation data from 2008 to 2024 were analysed. Based on an environmental suitability map, sequential least-cost modelling was applied in annual time steps, linking each new observation to the nearest known observation via a least-cost path. Populations were delineated by excluding high-cost paths and analysing the connectivity of the remaining paths, and expansion rates were calculated using the distance regression method.</p><p><strong>Results: </strong>We identified two populations, which align with known genetic groups in the area of France, Switzerland and Austria. Our modelling results also indicate two additional populations introduced to Italy and Serbia. Expansion rates ranged from 13.3 km/year to 58.6 km/year and peaked at 89.7 km/year during expansion phases, exhibiting a consistent sigmoidal expansion pattern.</p><p><strong>Conclusions: </strong>Our spatio-temporal approach delineates introduced populations without prior genetic knowledge, improving expansion rate estimation and informing targeted genetic sampling, monitoring, and management efforts of invasive species.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s10980-025-02188-9.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"40 8","pages":"177"},"PeriodicalIF":3.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12350438/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144876885","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 tree growth form on temporal and spatial patterns of particulate matter with various particle sizes in urban street canyons.","authors":"Xiaoshuang Wang, Yang Xiang, Chucai Peng, Mingjun Teng, Bojun Ma, Zhixiang Zhou, Changhui Peng","doi":"10.1007/s10980-024-02023-7","DOIUrl":"10.1007/s10980-024-02023-7","url":null,"abstract":"<p><strong>Context: </strong>Trees play a vital role in reducing street-level particulate matter (PM) pollution in metropolitan areas. However, the optimal tree growth type for maximizing the retention of various sizes of PM remains uncertain.</p><p><strong>Objectives: </strong>This study assessed the PM reduction capabilities of evergreen and deciduous broadleaf street trees, focusing on how leaf phenology influences the dispersion of pollutants across particle sizes.</p><p><strong>Methods: </strong>We collected data on six PM size fractions from 72 sites along streets lined with either evergreen or deciduous broadleaf trees in Wuhan, China, during the summer and winter of 2017-2018.</p><p><strong>Results: </strong>Evergreen trees demonstrated superior PM reduction capabilities compared to deciduous trees, with evergreen street canyons showing 27.2% and 12.6% lower PM_2.5 and PM₁₀ concentrations in summer, and 13% and 5.5% lower concentrations in winter. During summer, evergreen streets predominantly contained fine particles (PM₁, PM_2.5), posing potential health risk due to their ability to infiltrate the human respiratory system. In contrast, deciduous streets primarily harbored coarser particles (PM₄, PM₇, PM₁₀, and total suspended particulate [TSP]). During winter, larger particles were dominant, regardless of the tree growth form.</p><p><strong>Conclusions: </strong>Evergreen trees showed superior PM reduction capabilities compared to deciduous trees due to their year-round leaf retention, enhanced surface properties, and denser canopies that maximize PM capture. We recommend prioritizing evergreen broadleaf trees as the primary street trees while interspersing deciduous trees at appropriate intervals. This approach will ensure that urban greenery provides maximum ecological benefits while reducing the PM concentration.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"40 1","pages":"5"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11659368/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878568","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":"Silviculture shapes the spatial distribution of wildlife in managed landscapes.","authors":"Nicole P Boucher, Morgan Anderson, Chris Procter, Shelley Marshall, Gerald Kuzyk, Shaun Freeman, Brian M Starzomski, Jason T Fisher","doi":"10.1007/s10980-025-02095-z","DOIUrl":"10.1007/s10980-025-02095-z","url":null,"abstract":"<p><strong>Context: </strong>Silviculture-managing tree establishment for landscape objectives-influences ecological outcomes of forests. While forest harvest impacts on wildlife are well-documented, silvicultural treatment effects remain unclear.</p><p><strong>Objectives: </strong>We investigated how forest harvest and silviculture shape predator and ungulate distributions and interactions, providing ecological insights for forest management.</p><p><strong>Methods: </strong>We deployed two camera arrays in extensively harvested North American landscapes to evaluate relationships between forest harvest, silviculture, and predator and ungulate occurrences.</p><p><strong>Results: </strong>Forest harvest, silviculture, and predator/prey activity shape wildlife occurrences. Wolf (<i>Canis lupus</i>), influenced by moose (<i>Alces alces</i>), decreased with regenerating (9-24 years) clearcuts, new (0-8 years) clearcuts with reserves, and fertilized cutblocks. Wolves increased with regenerating/older (25-40 years) clearcuts with reserves. Coyote (<i>C. latrans</i>) increased in manually or chemically brushed cutblocks at high or low deer occurrence, respectively. Black bear (<i>U. americanus</i>), influenced by prey, increased with regenerating prepared cutblocks and fewer new prepared cutblocks. Prey elevated lynx (<i>Lynx canadensis</i>) occurrence with regenerating prepared or older unprepared cutblocks. Depending on predators, mule deer (<i>Odocoileus hemionus</i>) decreased with regenerating and older prepared cutblocks; white-tailed deer (<i>O. virginianus</i>) decreased with selection- and new even-aged cutblocks. Harvest age and wolves best explained moose, although silviculture mattered seasonally.</p><p><strong>Conclusions: </strong>Silviculture shapes wildlife distributions and interactions. Integrating these effects into research and forest management is essential for meeting ecological objectives.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s10980-025-02095-z.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"40 5","pages":"93"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12048426/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144027007","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":"Microclimate temperature effects propagate across scales in forest ecosystems.","authors":"Kristin H Braziunas, Werner Rammer, Pieter De Frenne, Joan Díaz-Calafat, Per-Ola Hedwall, Cornelius Senf, Dominik Thom, Florian Zellweger, Rupert Seidl","doi":"10.1007/s10980-025-02054-8","DOIUrl":"10.1007/s10980-025-02054-8","url":null,"abstract":"<p><strong>Context: </strong>Forest canopies shape subcanopy environments, affecting biodiversity and ecosystem processes. Empirical forest microclimate studies are often restricted to local scales and short-term effects, but forest dynamics unfold at landscape scales and over long time periods.</p><p><strong>Objectives: </strong>We developed the first explicit and dynamic implementation of microclimate temperature buffering in a forest landscape model and investigated effects on simulated forest dynamics and outcomes.</p><p><strong>Methods: </strong>We adapted the individual-based forest landscape and disturbance model iLand to use microclimate temperature for three processes [decomposition, bark beetle (<i>Ips typographus</i> L.) development, and tree seedling establishment]. We simulated forest dynamics with or without microclimate temperature buffering in a temperate European mountain landscape under historical climate and disturbance conditions.</p><p><strong>Results: </strong>Temperature buffering effects propagated from local to landscape scales. After 1,000 simulation years, average total carbon and cumulative net ecosystem productivity were 2% and 21% higher, respectively, and tree species composition differed in simulations including versus excluding microclimate buffering. When microclimate buffering was included, Norway spruce (<i>Picea abies</i> (L.) Karst.) increased by 9% and European beech (<i>Fagus sylvatica</i> L.) decreased by 12% in mean basal area share. Some effects were amplified across scales, such as a mean 16% decrease in local-scale bark beetle development rates resulting in a mean 45% decrease in landscape-scale bark beetle-caused mortality.</p><p><strong>Conclusions: </strong>Microclimate effects on forests scaled nonlinearly from stand to landscape and days to millennia, underlining the utility of complex simulation models for dynamic upscaling in space and time. Microclimate temperature buffering can alter forest dynamics at landscape scales.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s10980-025-02054-8.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"40 2","pages":"37"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11790809/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143257615","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":"Timber harvesting was the most important factor driving changes in vegetation composition, as compared to climate and fire regime shifts, in the mixedwood temperate forests of Temiscamingue since AD 1830.","authors":"Daniela Robles, Yan Boulanger, Jesus Pascual, Victor Danneyrolles, Yves Bergeron, Igor Drobyshev","doi":"10.1007/s10980-025-02043-x","DOIUrl":"10.1007/s10980-025-02043-x","url":null,"abstract":"<p><strong>Context: </strong>The vegetation composition of northeastern North American forests has significantly changed since pre-settlement times, with a marked reduction in conifer-dominated stands, taxonomic and functional diversity. These changes have been attributed to fire regime shifts, logging, and climate change.</p><p><strong>Methods: </strong>In this study, we disentangled the individual effects of these drivers on the forest composition in southwestern Quebec from 1830 to 2000 by conducting retrospective modelling using the LANDIS-II forest landscape model. The model was run based on pre-settlement forest composition and fire history reconstructions, historical timber harvest records, and climate reanalysis data. We compared counterfactual scenarios excluding individual factors to a baseline historical scenario.</p><p><strong>Results and conclusions: </strong>Our results indicated that timber harvesting had the greatest impact on forest dynamics over the past centuries. In the absence of timber harvesting, pre-settlement species abundances were largely maintained, preserving key functional traits like fire and shade tolerance that contribute to ecosystem resilience. Increased fire activity during the settlement period contributed to the increase of early-successional aspen (Populus tremuloides), but timber harvesting played the dominant role. Fire exclusion had no influence on vegetation composition, suggesting mesophication unfolds over longer timescales than those captured in this study. Climate change, characterized by modest increases in temperature and precipitation, had a minor effect on vegetation shifts, as increased precipitation might have mitigated the adverse effects of rising temperatures. However, future climate change is projected to become a more significant driver of forest composition. These findings underscore the importance of forest restoration and continued research on past forest dynamics to better understand current and future changes.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s10980-025-02043-x.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"40 2","pages":"26"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11753300/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143025969","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":"Exploring the relationship between urban green infrastructure connectivity, size and multifunctionality: a systematic review.","authors":"Lei Li, Jeremy Carter","doi":"10.1007/s10980-025-02069-1","DOIUrl":"10.1007/s10980-025-02069-1","url":null,"abstract":"<p><strong>Context: </strong>Urban green infrastructure (GI) multifunctionality is widely valued within the academic literature, and underpins calls from policy makers to enhance and expand GI resources. However, there is a gap in understanding concerning how GI connectivity and size influence GI multifunctionality outcomes.</p><p><strong>Objectives: </strong>The objectives are to: (1) present the current status of research on urban GI multifunctionality (encompassing ecosystem services and disservices) and the GI traits of connectivity and size; (2) identify relationships between these topics within the literature; (3) provide research insights and present actionable GI planning recommendations based on the findings of the research.</p><p><strong>Methods: </strong>A systematic review of 139 academic sources (2010-2023) was conducted following the PRISMA guidelines.</p><p><strong>Results: </strong>Key findings include that multifunctionality themes are more commonly considered within research exploring GI connectivity across urban boundaries than within them, where a wider range of flows of ecosystem functions and associated services (and disservices) are enabled. Also, research predominantly focuses on multiple large GI sites, with limited attention to the multifunctionality of single small GI sites that are commonly found in dense urban areas.</p><p><strong>Conclusions: </strong>Greater consideration is needed of how the manipulation of GI size and connectivity influence multifunctionality outcomes, whilst also recognising the threat of ecosystem disservices emerging as a result of such actions. Through uncovering gaps in understanding concerning these issues, and highlighting topics benefiting from stronger research foundations, this research can support GI policy, practice and research in realising GI multifunctionality outcomes in urban settings, whilst minimising ecosystem disservices.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s10980-025-02069-1.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"40 3","pages":"61"},"PeriodicalIF":4.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11893650/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143617261","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}