Ecology最新文献

{"title":"Set fire to the gall: Can the gall protect the galling weevil from fire?","authors":"Jean Carlos Santos, Henrique Venâncio, Guilherme Ramos Demetrio, Wanessa Rejane de Almeida, Walter Santos de Araújo, Pablo Cuevas-Reyes","doi":"10.1002/ecy.70083","DOIUrl":"https://doi.org/10.1002/ecy.70083","url":null,"abstract":"<p>Fire is one of the main causes of habitat disturbance that negatively affects biodiversity, causing changes in vegetation structure and plant biomass as well as disruptions in plant–animal interactions in many terrestrial ecosystems (Grau-Andrés et al., <span>2024</span>; Kelly et al., <span>2020</span>). The occurrence of fire has deep consequences for the ecology and evolution of insect herbivores (Koltz et al., <span>2018</span>), and it also has direct consequences on these insect assemblies because of the loss of food resources and shelter (Knight & Holt, <span>2005</span>; New, <span>2014</span>). The direct and immediate effects of fire on individual insects and their populations, including cremation and lethal heat exposure, can be severe and lead to large-scale mortality (New, <span>2014</span>). Particularly in less mobile insect species and ontogenetic stages such as eggs, larvae, and pupae, it is possible to expect that the effects of fire will be more severe (Koltz et al., <span>2018</span>). However, the effects of fire on insects are poorly understood (Arruda et al., <span>2018</span>), and, according to New (<span>2014</span>), few terrestrial or aquatic insects are completely immune to the effects of fire (see Bieber et al., <span>2023</span>).</p><p>Many insects induce galls, tumors with atypical plant tissue growth, on their host plants. These changes in plant tissues are attributed to hyperplasia and/or hypertrophy of plant cells induced by specific stimuli from a female insect while laying eggs and/or by offspring while feeding on plant tissues (Giron et al., <span>2016</span>). The resulting galls provide shelter, food, and protection from natural enemies during larval development (Giron et al., <span>2016</span>). For example, thick gall wall epidermis can provide a rigid barrier that confers protection to the gall-inducing insect larvae against natural enemies and abiotic stressors such as high temperatures and low water availability (Stone & Schönrogge, <span>2003</span>). Gall-inducing insects are highly diverse in the Neotropics, especially in the Cerrado (Brazilian Savannah) (Fernandes & Santos, <span>2014</span>), which is a fire-adapted ecosystem (Durigan, <span>2020</span>) with a high incidence of anthropogenic fires (Pivello, <span>2011</span>).</p><p>Here, we report the first case of galls conferring protection against fire to the gall-inducing Boheman weevil <i>Collabismus clitellae</i> Boheman (Coleoptera: Curculionidae). The Boheman weevil induces woody galls on <i>Solanum lycocarpum</i> St. Hil. (Solanaceae). <i>S. lycocarpum</i>, locally known as “<i>lobeira</i>” (“wolf's fruit”), is a shrub that can reach up to 3 m in height and is abundant throughout the Cerrado. <i>C. clitellae</i> females oviposit on new shoots, resulting in the induction of multi-chambered galls that harbor high densities of larvae (1–70 chambers per gall, but with only one individual in each chamber) (Souza et al., <span","PeriodicalId":11484,"journal":{"name":"Ecology","volume":"106 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecy.70083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914556","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":"A classification-occupancy model based on automatically identified species data","authors":"Ryo Ogawa,&nbsp;Frédéric Gosselin,&nbsp;Kevin F. A. Darras,&nbsp;Stephanie Roilo,&nbsp;Anna F. Cord","doi":"10.1002/ecy.70086","DOIUrl":"https://doi.org/10.1002/ecy.70086","url":null,"abstract":"<p>Occupancy models estimate a species' occupancy probability while accounting for imperfect detection, but often overlook the issue of false-positive detections. This problem of false positives has gained attention recently with the rapid advancement of automated species detection tools using artificial intelligence (AI), which generate continuous confidence scores for each species detection. Novel occupancy models have been introduced that integrate these confidence scores to identify false positives, but these models require thorough assessments of diagnosis and validation. Here, we propose a new occupancy model based solely on AI-detected species data. We conducted simulations to examine the inferential and predictive accuracies with known true parameters and analyzed AI-detected species data to test the practical usefulness through goodness-of-fit tests and evaluation with external data. Our proposed model mostly outperformed alternative models that ignore imperfect detection or false-positive error probabilities in terms of accuracy in simulation analyses and goodness-of-fit tests in the case study, but not in terms of discrimination metrics based on external data. The proposed occupancy model aids in understanding species–habitat relationships and developing automated biodiversity monitoring workflows by accounting for both false-negative and false-positive errors.</p>","PeriodicalId":11484,"journal":{"name":"Ecology","volume":"106 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecy.70086","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914559","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":"A comprehensive county-level distribution database of alien and invasive plants in China","authors":"Yingbo Yang,&nbsp;Xiang Liu,&nbsp;Jihua Wu,&nbsp;Jens-Christian Svenning,&nbsp;Jianquan Liu,&nbsp;Nawal Shrestha","doi":"10.1002/ecy.70084","DOIUrl":"https://doi.org/10.1002/ecy.70084","url":null,"abstract":"<p>Over the past half century, international trade and exchange have continued to increase in China, resulting in the widespread introduction of alien plant species. The accumulation of these alien species has accelerated invasion events, posing serious threats to local ecological security and economic development. Comprehensive and accurate species distribution records are extremely important for early detection, understanding dispersal dynamics, and supporting various management strategies and research initiatives. However, biodiversity databases, both global and local, often lack comprehensive and high-resolution distribution data for alien invasive plant species (AIPs). This limitation is particularly evident in China, where local databases typically provide coarse spatial data, often restricted to the provincial level, leading to a substantial underestimation of the actual distribution of AIPs. Here, we fill this gap by creating the most comprehensive distribution database for AIPs in China at a much finer spatial resolution. By integrating 73,469 distribution records from China's online herbarium, biodiversity databases, flora, published literature, and 173,396 georeferenced records from GBIF, we built the county-level distribution database for 400 AIPs and report for the first time their presence in 2684 administrative counties in China (92.5% of the total counties). Notably, our database provides 2.58 times more distribution records than global biodiversity data repositories such as GBIF and also includes the earliest introduction dates for each AIP. The temporal range of the records spans from 1607 to 2023, capturing over 400 years of AIP presence in China. These rigorously quality-controlled georeferenced data can be used to examine the dynamics and influencing factors of plant invasions in China. They can also serve as the most updated data reference for policy makers in designing effective AIP management policies in China. We encourage users to cite this data paper when utilizing the data, and there are no restrictions on its use for non-commercial purposes.</p>","PeriodicalId":11484,"journal":{"name":"Ecology","volume":"106 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecy.70084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914557","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":"Impacts of extreme precipitation events on leaf litter and wood decomposition rates","authors":"Paulina E. Murray,&nbsp;Peter W. Clark,&nbsp;Shawn Fraver,&nbsp;Anthony W. D'Amato,&nbsp;E. Carol Adair","doi":"10.1002/ecy.70087","DOIUrl":"https://doi.org/10.1002/ecy.70087","url":null,"abstract":"<p>Global hydrological cycles are shifting due to climate change, and projected increases in the frequency and intensity of extreme precipitation events will likely affect essential ecosystem processes driven by climate, such as forest decomposition. Our objective was to determine the effects of drought and intense rainfall on leaf litter and wood decomposition rates. We used a precipitation manipulation experiment to demonstrate that extreme precipitation projections for the Northeastern United States will significantly impact wood but not leaf litter decomposition and that variations in substrate quality will continue to drive differences in decomposition rates. We found that drought and high rainfall reduced wood decomposition compared to historic rainfall patterns. The median mass remaining of wood stakes after three years within drought, control, and inundation treatments was 84.2%, 57.0%, and 67.5%, respectively. Furthermore, labile litter and wood substrates decomposed more rapidly than recalcitrant substrate types. Thus, our findings suggest a greater sensitivity of wood decomposition to changing precipitation regimes compared to leaf litter. Since wood represents a substantial forest carbon pool, our results underscore the possible significant impacts of projected extreme precipitation scenarios for forest functions, including carbon cycling and sequestration.</p>","PeriodicalId":11484,"journal":{"name":"Ecology","volume":"106 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914560","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":"Differential effects of nutrients and consumer pressure on sympatric cryptic coral species (Pocillopora spp.)","authors":"Scott C. Burgess,&nbsp;Kelly E. Speare,&nbsp;Rowan H. McLachlan,&nbsp;Erika C. Johnston,&nbsp;Thomas C. Adam,&nbsp;Rebecca Vega Thurber,&nbsp;Deron E. Burkepile","doi":"10.1002/ecy.70079","DOIUrl":"https://doi.org/10.1002/ecy.70079","url":null,"abstract":"<p>Cryptic species (evolutionarily distinct lineages that do not align with morphologically defined species) are being increasingly discovered but are poorly integrated into ecological theory. In particular, we still lack a useful understanding of if and how cryptic species differ in ways that affect community recovery from disturbances and responses to anthropogenic stressors, such as the removal of consumers and pollution from nutrients. On coral reefs, nutrient pollution increases the growth of macroalgae that displace corals. Reductions in herbivorous fishes reduce the suppression of macroalgae, while reductions in coralivorous fishes reduce predation on corals. An unresolved question is if and how cryptic coral species respond differently to these impacts, thereby differing in their ability to influence coral community dynamics and maintain coral dominance. Therefore, we assessed how the response of cryptic <i>Pocillopora</i> species over a period of three years following a simulated disturbance from a cyclone depended on the experimental reduction of fish consumer pressure and nutrient addition. After three years, five morphologically cryptic, but genetically distinct, <i>Pocillopora</i> species recruited to the reef. However, recruitment was dominated by two species: <i>Pocillopora tuahiniensis</i> (46%) and <i>Pocillopora meandrina</i> (43%). Under ambient conditions, recruitment of <i>P. tuahiniensis</i> and <i>P. meandrina</i> was similar, but experimentally reducing consumer pressure increased recruitment of <i>P. tuahiniensis</i> by up to 73% and reduced recruitment of <i>P. meandrina</i> by up to 49%. In both species, nutrient enrichment increased recruitment and colony growth rates equally, but colonies of <i>P. tuahiniensis</i> grew faster and were up to 25% larger after three years than those of <i>P. meandrina,</i> and growth was unaffected by reduced consumer pressure. Predation by excavating corallivorous fish was higher for <i>P. meandrina</i> than for <i>P. tuahiniensis</i>, especially under nutrient enrichment. In contrast, polyp extension (an indicator of elevated heterotrophic feeding as well as susceptibility and attractiveness to corallivores) was lower for <i>P. meandrina</i> than for <i>P. tuahiniensis</i>, especially under low to medium consumer pressure. Overall, we uncovered ecological differences in the response of morphologically cryptic foundation species to two pervasive stressors on coral reefs. Our results demonstrate how cryptic species respond differently to key anthropogenic stressors, which may contribute to response diversity that can support ecological resilience or increase extinction risk.</p>","PeriodicalId":11484,"journal":{"name":"Ecology","volume":"106 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecy.70079","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914555","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":"When can we detect lianas from space? Toward a mechanistic understanding of liana-infested forest optics","authors":"Marco D. Visser,&nbsp;Matteo Detto,&nbsp;Félicien Meunier,&nbsp;Jin Wu,&nbsp;Jane R. Foster,&nbsp;David C. Marvin,&nbsp;Peter M. van Bodegom,&nbsp;Boris Bongalov,&nbsp;Matheus Henrique Nunes,&nbsp;David Coomes,&nbsp;Hans Verbeeck,&nbsp;J. Antonio Guzmán Q,&nbsp;Arturo Sanchez-Azofeifa,&nbsp;Chris J. Chandler,&nbsp;Geertje M. F. van der Heijden,&nbsp;Doreen S. Boyd,&nbsp;Giles M. Foody,&nbsp;Mark E. J. Cutler,&nbsp;Eben N. Broadbent,&nbsp;Shawn P. Serbin,&nbsp;Stefan Schnitzer,&nbsp;M. Elizabeth Rodríguez-Ronderos,&nbsp;Frank Sterck,&nbsp;José A. Medina-Vega,&nbsp;Stephen W. Pacala","doi":"10.1002/ecy.70082","DOIUrl":"https://doi.org/10.1002/ecy.70082","url":null,"abstract":"<p>Lianas, woody vines acting as structural parasites of trees, have profound effects on the composition and structure of tropical forests, impacting tree growth, mortality, and forest succession. Remote sensing could offer a powerful tool for quantifying the scale of liana infestation, provided the availability of robust detection methods. We analyze the consistency and global geographic specificity of spectral signals—reflectance across wavelengths—from liana-infested tree crowns and forest stands, examining the underlying mechanisms of these signals. We compiled a uniquely comprehensive database, including leaf reflectance spectra from 5424 leaves, fine-scale airborne reflectance data from 999 liana-infested canopies, and coarse-scale satellite reflectance data covering 775 ha of liana-infested forest stands. To unravel the mechanisms of the liana spectral signal, we applied mechanistic radiative transfer models across scales, establishing a synthesis of the relative importance of different mechanisms, which we corroborate with field data on liana leaf chemistry and canopy structure. We find a consistent liana spectral signal at canopy and stand scales across globally distributed sites. This signature mainly arises at the canopy level due to direct effects of more horizontal leaf angles, resulting in a larger projected leaf area, and indirect effects from increased light scattering in the near and short-wave infrared regions, linked to lianas' less costly leaf construction compared with trees on average. The existence of a consistent global spectral signal for lianas suggests that large-scale quantification of liana infestation is feasible. However, because the traits responsible for the liana canopy-reflectance signal are not exclusive to lianas, accurate large-scale detection requires rigorously validated remote sensing methods. Our models highlight challenges in automated detection, such as potential misidentification due to leaf phenology, tree life history, topography, and climate, especially where the scale of liana infestation is less than a single remote sensing pixel. The observed cross-site patterns also prompt ecological questions about lianas' adaptive similarities in optical traits across environments, indicating possible convergent evolution due to shared constraints on leaf biochemical and structural traits.</p>","PeriodicalId":11484,"journal":{"name":"Ecology","volume":"106 4","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecy.70082","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880036","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":"Species occupancy is inflated by sink populations in productive environments but not unproductive environments","authors":"Emilie F. Craig,&nbsp;Megan Szojka,&nbsp;Rachel M. Germain,&nbsp;Lauren G. Shoemaker","doi":"10.1002/ecy.70089","DOIUrl":"https://doi.org/10.1002/ecy.70089","url":null,"abstract":"<p>For decades, community ecologists have examined how diversity varies with ecosystem productivity. Despite this long history, tests of hypothesized mechanisms, namely the interplay between environmental filtering, biotic interactions, and dispersal, are lacking, largely due to the intractability of using traditional approaches. Across a productivity gradient in a serpentine grassland (California, USA), for four annual plant species, we coupled local productivity estimates, occupancy surveys, and measures of persistence tested on transplants under natural conditions and when interactions with neighbors were experimentally reduced. We found a positive effect of productivity on diversity (i.e., the proportion of our focal species occupying a location) despite strong competition limiting species persistence in productive environments. Additionally, across species and for the community, we found a strong mismatch between species occupancy versus persistence, largely due to dispersal excess causing sink populations with negative growth rates. Our results suggest that diversity–productivity relationships can be largely driven by dispersal and its interactive effects with local biotic and abiotic conditions.</p>","PeriodicalId":11484,"journal":{"name":"Ecology","volume":"106 4","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecy.70089","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861819","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":"Ecological traits for 1374 arthropod species collected in a German grassland","authors":"Maximilian Bröcher,&nbsp;Sebastian T. Meyer,&nbsp;Ana Garcia Leher,&nbsp;Anne Ebeling","doi":"10.1002/ecy.70077","DOIUrl":"https://doi.org/10.1002/ecy.70077","url":null,"abstract":"<p>Arthropods play an important role in grasslands, making trait-based research a valuable approach to advance our understanding of ecosystem functioning. However, a wide range of functional traits for complex arthropod communities is often not available in a single source but must be compiled from multiple references and databases. Using suction and pitfall sampling in the field site of the Jena Experiment, we collected Araneae, Coleoptera, Hemiptera, Hymenoptera, Isopoda, Myriapoda, and Orthoptera over a period of 10 years to document arthropod taxa in the area. We then surveyed the existing literature to compile nine important functional traits for each species. The nine selected traits cover information about feeding ecology (feeding guild, feeding source, food acquisition, feeding mode, food specialization), habitat requirements (stratum), flight capability (aerial mobility), and size (body mass, body length). As the selected traits cover both response traits and effect traits, this database can be deployed for investigations on topics ranging from the sensitivity of arthropod communities to environmental changes (response traits) to the impact of arthropods on the functioning of ecosystems (effect traits). There are no copyright constraints associated with the use of the data, except for the citing of this Data Paper.</p>","PeriodicalId":11484,"journal":{"name":"Ecology","volume":"106 4","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecy.70077","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861931","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":"Loss of meltwater from glaciers and snowpack may increase synchrony of river habitats and resources in mountain watersheds","authors":"Matthew R. Dunkle,&nbsp;J. Ryan Bellmore,&nbsp;Jason B. Fellman,&nbsp;Eran W. Hood,&nbsp;Christopher C. Caudill","doi":"10.1002/ecy.70023","DOIUrl":"https://doi.org/10.1002/ecy.70023","url":null,"abstract":"<p>Stream biogeochemical regimes can vary over short distances in heterogenous landscapes. In many mountainous and high-latitude watersheds, streams fed by rain and groundwater sources coexist with streams dominated by meltwater from melting glaciers, permafrost, and seasonal snowpack. The distinct physicochemical regimes of meltwater and non-meltwater fed streams can promote spatial and temporal asynchronies in biotic and abiotic environmental conditions within watersheds that promote ecological heterogeneity and stability. However, fading cryospheric inputs to watersheds threaten to homogenize and synchronize stream habitats and resources. Here, we compared the physicochemical conditions and biomass dynamics of stream food webs (course particulate detritus, periphyton, aquatic invertebrates, and fish) over a meltwater season from April to November in four streams with different predominant sources of runoff, one glacier-fed, one snow-fed, one rain-fed, and one stream transitioning from glacier- and snow-fed to a rain-fed. We then analyzed the temporal correlation (“synchrony”) of the abiotic and biotic conditions in these streams and evaluated how synchrony might change if certain stream types were lost. We found that glacier-, snow-, and rain-fed streams had distinct temperature, flow, and water chemistry regimes and asynchronous seasonal patterns of detritus, biofilm, aquatic invertebrate, and fish biomass. The strongest differences were associated with the divergence of abiotic and biotic conditions in the glacier-fed stream relative to the other stream types. Synchrony analysis suggests that the climate-driven loss of meltwater contributions from the cryosphere may synchronize the seasonal resource dynamics of meltwater and non-meltwater streams during the primary growing season within and across watersheds. Increasing synchrony of abiotic processes that drive instream production could reduce ecological stability within watersheds as seasonal conditions converge, especially for mobile consumers that will lose the opportunity to integrate resource waves across complex landscapes.</p>","PeriodicalId":11484,"journal":{"name":"Ecology","volume":"106 4","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861929","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":"Temporal invasion regime attributes influence community synchrony and stability in an arid land system","authors":"Clarissa S. Rodriguez,&nbsp;Lynn Sweet,&nbsp;Melanie Davis,&nbsp;Scott Heacox,&nbsp;Cameron Barrows,&nbsp;Loralee Larios","doi":"10.1002/ecy.70081","DOIUrl":"https://doi.org/10.1002/ecy.70081","url":null,"abstract":"<p>Invasive species have become a major threat to ecosystems across the globe, causing significant ecological and economic damage. To anticipate how communities may respond to future invasions, it is crucial to refine how invader impacts are evaluated, especially in historically uninvaded and highly variable systems such as arid lands. While invader abundance is typically used to predict invader impacts, it may not effectively capture the dynamics that occur over time for established invaders that experience cyclical dynamics (i.e., boom-bust patterns), making it more challenging to track invader impacts. To address this issue, we leveraged a long-term vegetation dataset to develop a novel invasion regime framework for a dominant annual invader in North American deserts, <i>Brassica tournefortii</i>. Using abundance data over time, we evaluated how attributes of this invader's boom-bust dynamics (i.e., invasion level, boom frequency and magnitude) influence the long-term synchrony and stability of invaded Eolian sand dunes communities. We found that attributes that captured the temporal effects of the invader were strong indicators of the impacts of an invader on long-term attributes of communities. Specifically, the mean magnitude of invader booms led to a decrease in species asynchrony and community stability. Increasing boom frequency also decreased community stability, but this was more muted. Mean magnitude of invader booms also mediated shifts in the relationship between synchrony and stability, with this relationship becoming more shallow with increasing boom magnitudes. Our research emphasizes the significance of using community metrics that capture temporal dynamics to document invasion impacts within dynamic arid land systems. The invasion regime framework can additionally offer insights into the mechanisms that may enable the persistence of the invader over time. Together, this knowledge can be helpful in guiding decision-making and land management strategies aimed at effectively controlling and mitigating the impact of invasive species.</p>","PeriodicalId":11484,"journal":{"name":"Ecology","volume":"106 4","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861930","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}