Landscape Ecology最新文献

{"title":"Big cats persisting in human-dominated landscape: Habitat suitability and connectivity of leopards in central North China","authors":"Yidan Wang, Mingzhang Liu, Fan Xia, Yiqing Wang, Dazhao Song, Yanlin Liu, Sheng Li","doi":"10.1007/s10980-024-01896-y","DOIUrl":"https://doi.org/10.1007/s10980-024-01896-y","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>The leopard (<i>Panthera pardus</i>), the only large carnivore species occurring in central North China, has undergone substantial range contraction and population decline due to anthropogenic pressure across the region.</p><h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>In this study, we aimed to map its current suitable habitats and assess the degree of connectivity between core habitats to inform future conservation planning of this big cat at the landscape scale.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>We conducted this study in central North China (34°11´ ~ 43°49´N, 103°11´ ~ 123°54´E, about 936,000 km²). We collected occurrence locations (N = 196) of leopards from 2014–2020, and modeled its habitat suitability using an “ensemble” species distribution model by incorporating environmental and anthropogenic variables. We then identified the potential dispersal corridors between core habitat patches (≥ 100 km²) through connectivity analysis.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The leopards preferred humid forests at higher elevations with less human disturbance. Their suitable habitats were highly fragmented, with main core habitats located in Shanxi, Shaanxi, and the border between Gansu and Ningxia provinces. Among all the 8,679 km² suitable habitats, we identified 14 core habitats (139–1,084 km², mean = 495.21 km²) with a total area of 6,933 km², among which only 25.26% (1,751 km²) are covered by nature reserves and only 11 core habitats were confirmed with leopard occurrence. We also identified 8 least-cost pathways among these core habitats with an average length of 57.22 km.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Our results revealed that, leopards are persisting in highly fragmented habitats with fragile connectivity among core habitats. The leopards remaining in North China should be considered and managed as a regional meta-population for their long-term persistence in the human-dominated landscape.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"26 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636713","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":"Beta diversity partitioning reveals homogenization in bird community composition within the forest-agriculture landscape of the northern Taiwan coast","authors":"Yu-Ting Shih, Hsiang-Hua Wang, Shu-Wei Fu, Sheng-Hsin Su, Chao-Nien Koh","doi":"10.1007/s10980-024-01888-y","DOIUrl":"https://doi.org/10.1007/s10980-024-01888-y","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>This study examined how human-induced landscape changes affected bird diversity in mountain villages with mixed forests and cultivated fields.</p><h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>We focused on the bird species composition (beta diversity) to determine whether species homogenization varied with forest cover differences. This study developed it as a novel metric potentially quantifying homogenization level comparison in species functional groups.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>Bird surveys were conducted at 27 sites with forest cover scattered from 0 to 100%. Bird species were divided into forest birds and nonforest birds. Beta diversity was partitioned into turnover and nestedness-resultant components, and their contribution ratio to Sørensen beta was used to examine the effect of forest cover and pairwise cover difference.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Our results indicated that forest birds exhibited low turnover and low nestedness, whereas nonforest birds exhibited nestedness distribution characteristics. The nestedness-resultant contribution ratio of nonforest birds was higher, driven by forest cover difference (slope = 0.0080, Pseudo <i>R</i>² = 0.35^**) than that of forest birds (slope = 0.0018, Pseudo <i>R</i>² = 0.02^**). Thus, we quantify the result of forest cover decreased lead to the dominated by nestedness species in nonforest birds.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>These findings highlight the distinct effects of environmental changes on these two bird functional groups. Although the Sørensen beta diversity increases with forest cover decrease, most are contributed by nestedness-resultant nonforest birds and lead to homogenization. Thus, it is recommended that conservation plans should separately address forest and nonforest bird species to avoid the risk of underestimating species homogenization due to anthropogenic land-use and habitat degradation.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"59 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140635948","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":"Key breeding habitats of threatened golden eagles across Eastern Canada identified using a multi-level, multi-scale habitat selection approach","authors":"Laurie D. Maynard, Jérôme Lemaître, Jean-François Therrien, Tricia A. Miller, Todd Katzner, Scott Somershoe, Jeff Cooper, Robert Sargent, Nicolas Lecomte","doi":"10.1007/s10980-024-01835-x","DOIUrl":"https://doi.org/10.1007/s10980-024-01835-x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Context</h3><p>In a conservation context, identifying key habitats suitable for reproduction, foraging, or survival is a useful tool, yet challenging for species with large geographic distributions and/or living in remote regions.</p><h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>The objective of this study is to identify selected habitats at multiple levels and scales of the threatened eastern North American population of golden eagles (<i>Aquila chrysaetos</i>). We studied habitat selection at three levels: landscape (second order of selection), foraging (third order of selection), and nesting (fourth order of selection).</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>Using tracking data from 30 adults and 366 nest coordinates spanning over a 1.5 million km² area in remote boreal and Arctic regions, we modelled the three levels of habitat selection with resource selection functions using seven environmental features (aerial, topographical, and land cover). We then calculated the relative probability of selection in the study area to identify regions with higher probabilities of selection.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Eagles selected more for terrain ruggedness index and relative elevation than land cover (i.e., forest cover, distance to water; mean difference in relative selection strength: 1.2 [0.71; 1.69], 95% CI) at all three levels. We also found that the relative probability of selection at all three levels was ~ 25% higher in the Arctic than in the boreal regions. Eagles breeding in the Arctic travelled shorter foraging distances with greater access to habitat with a high probability of selection than boreal eagles.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>Here we found which aerial and topographical features were important for several of the eagles’ life cycle needs. We also identified important areas to monitor and preserve this threatened population. The next step is to quantify the quality of habitat by linking our multi-level, multi-scale approach to population demography and performance such as reproductive success.</p>","PeriodicalId":54745,"journal":{"name":"Landscape Ecology","volume":"48 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140615057","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":"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}