Landscape Ecology最新文献

{"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}

{"title":"Alternative vegetation trajectories through passive habitat rewilding: opposite effects for animal conservation","authors":"María V. Jiménez-Franco, Eva Graciá, Roberto C. Rodríguez-Caro, José D. Anadón, Thorsten Wiegand, Andrés Giménez","doi":"10.1007/s10980-024-01880-6","DOIUrl":"https://doi.org/10.1007/s10980-024-01880-6","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>Passive habitat rewilding after rural abandonment can affect wildlife differently depending on the type of habitats that it generates.</p><h3 data-test=\"abstract-sub-heading\">Objective</h3><p>Evaluate and compare the effects of two alternative vegetation trajectories that occur through passive habitat rewilding in Mediterranean ecotone areas (crop-scrub and crop-pine forest transitions) on the long-term population dynamics of animal species.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>We used the spur-thighed tortoise (<i>Testudo graeca</i>), a characteristic long-lived species of cultural landscapes, as study species. We applied a spatially explicit and individual-based model (STEPLAND) to simulate the movement and demographic processes in a long-term period<i>,</i> by comparing an “impact scenario” (i.e., historical land-use changes) to a “control scenario” (no land-use changes).</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The two landscape scenarios resulted in different population trends. In the crop-scrub scenarios (control and impact), population densities increased similarly over time. However, the crop-pine forest scenario negatively affected population density throughout the simulation period, and showed a time-lag response of three decades. The extinction risk was 55% with a time-lag response of approximately 110 years.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Our study highlights the need to analyse the legacy effects on long-lived ectotherms, using them as a proxy to understand the future effects of dynamic landscapes created by “passive habitat rewilding”. Our results showed how traditional agriculture in Mediterranean ecotone areas may generate “ecotone effects” (i.e. increase in demographical parameters), but also population extinction on long-lived ectotherms. Therefore, we consider it relevant to maintain traditional agricultural areas in Mediterranean landscapes, especially in ecotone areas associated with pine forests (generating mosaics with open habitats).</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"103 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140201803","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":"Large-landscape connectivity models for pond-dwelling species: methods and application to two invasive amphibians of global concern","authors":"","doi":"10.1007/s10980-024-01858-4","DOIUrl":"https://doi.org/10.1007/s10980-024-01858-4","url":null,"abstract":"<h3>Abstract</h3> <span> <h3>Context</h3> <p>Functional connectivity models are essential in identifying major dispersal pathways and developing effective management strategies for expanding populations of invasive alien species. However, the extrapolation of models parameterized within current invasive ranges may not be applicable even to neighbouring areas, if the models are not based on the expected responses of individuals to landscape structure.</p> </span> <span> <h3>Objectives</h3> <p>We have developed a high-resolution connectivity model for both terrestrial and aquatic habitats using solely potential sources. The model is used here for the invasive, principally-aquatic, African clawed frog <em>Xenopus laevis</em>, which is a species of global concern.</p> </span> <span> <h3>Methods</h3> <p>All ponds were considered as suitable habitats for the African clawed frog. Resistance costs of lotic aquatic and terrestrial landscape features were determined through a combination of remote sensing and laboratory trials. Maximum cumulative resistance values were obtained via capture-mark-recapture surveys, and validation was performed using independently collected presence data. We applied this approach to an invasive population of the American bullfrog, <em>Lithobates catesbeianus,</em> in France to assess its transferability to other pond-dwelling species.</p> </span> <span> <h3>Results</h3> <p>The model revealed areas of high and low functional connectivity. It primarily identified river networks as major dispersal pathways and pinpointed areas where local connectivity could be disrupted for management purposes.</p> </span> <span> <h3>Conclusion</h3> <p>Our model predicts how the dispersal of individuals connect suitable lentic habitats, through river networks and different land use types. The approach can be applied to species of conservation concern or interest in pond ecosystems and other wetlands, including aquatic insects, birds and mammals, for which distribution data are limited or challenging to collect. It serves as a valuable tool for forecasting colonization pathways in expanding populations of both native and invasive alien species and for identifying regions suitable for preventive or adaptive control measures.</p> </span>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"7 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140146844","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":"A comprehensive review of the effects of roads on salamanders","authors":"Alison E. Ochs, Robert K. Swihart, Mike R. Saunders","doi":"10.1007/s10980-024-01867-3","DOIUrl":"https://doi.org/10.1007/s10980-024-01867-3","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>Road expansion has raised concerns regarding road effects on wildlife and ecosystems within the landscape. Salamanders, critical ecosystem components and bioindicators, are vulnerable to road impacts due to habitat loss, migrations, and reliance on stream health. Systemic reviews considering the effects of different road types on salamanders are lacking.</p><h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>We summarize 155 studies of road effects on salamanders, including paved, unpaved, and logging roads, hiking trails, railroads, and powerlines. We examine trends in road type, study area, and impacts on salamanders; summarize current knowledge; and identify knowledge gaps.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>We used Web of Science for literature searches, completed in January 2023. We reviewed and summarized papers and used Chi-squared tests to explore patterns in research efforts, research gaps, and impacts on salamanders.</p><h3 data-test=\"abstract-sub-heading\">Review</h3><p>Roads had negative effects on salamanders through direct mortality, damaging habitat, and fragmenting populations. Traffic and wetland proximity increased negative impacts in some studies; abandoned logging roads showed negative effects. Positive effects were limited to habitat creation along roads. Habitat creation and under-road tunnels with drift fencing were effective mitigation strategies. Non-passenger vehicle roads were critically understudied, as were mitigation strategies such as bucket brigades and habitat creation along roads.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>With road networks expanding and salamander populations declining, managers must account for road effects at landscape scales. The effects of non-paved roads on salamanders are poorly understood but critically important as such roads are frequently located in natural areas. Managers should incorporate mitigation strategies and work to reduce road impacts on vulnerable wildlife.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"18 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140146846","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}