IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-09-30 DOI: 10.1007/s00442-025-05802-4

Ádám Lőrincz, Kata Frei, Alida Anna Hábenczyus, Bonita Ratkai, Gábor Lőrinczi, András Kelemen, Csaba Tölgyesi, Zoltán Bátori, István Elek Maák

{"title":"Contrasting trait-based assembly mechanisms on different trophic levels: ants and plants on wood-pastures.","authors":"Ádám Lőrincz, Kata Frei, Alida Anna Hábenczyus, Bonita Ratkai, Gábor Lőrinczi, András Kelemen, Csaba Tölgyesi, Zoltán Bátori, István Elek Maák","doi":"10.1007/s00442-025-05802-4","DOIUrl":"10.1007/s00442-025-05802-4","url":null,"abstract":"Complex landscapes (i.e., those harboring multiple habitat types at immediate spatial proximity) are highly relevant to both applied and theoretical ecological research, yet the mechanisms shaping functional trait distributions and diversity metrics across trophic levels in these systems remain poorly understood. To address this knowledge gap, we used wood-pastures as a model system and focused on two prominent groups occupying different trophic levels: plants and ants. We sampled three Central-European wood-pastures, with all four encompassed habitat types (grasslands, solitary trees, forest edges, and forests; 48 sites in total). Our results revealed significant differences in taxonomic and functional composition for both groups among the different habitat types of wood-pastures. However, the underlying mechanisms driving these patterns differed between plants and ants. Based on RLQ and fourth-corner analyses, heterogeneity in environmental conditions mainly influenced plant functional trait distributions. In contrast, ant diversity metrics and trait distributions were strongly linked to vegetation characteristics and habitat structure, and were only indirectly influenced by local microclimate, as shown by path analyses. These highlight that while mapping the increased environmental heterogeneity of complex landscapes, the main mechanisms shaping functional composition and diversity metrics might differ for organisms at different trophic levels (i.e., predominantly environmental filtering for plants and interspecific competition for ants). Consequently, the patterns and peaks of taxonomic and functional diversity do not necessarily coincide for different organisms in complex landscapes, emphasizing that conservation initiatives should focus on the system as a whole, rather than individual habitat types, to maximize biodiversity conservation.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 10","pages":"166"},"PeriodicalIF":2.3,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12479661/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145192314","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}

引用次数: 0

Low temperatures reduce establishment of new populations of invasive plants in a subarctic treeline environment. 在亚北极的树线环境中，低温减少了入侵植物新种群的建立。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-09-30 DOI: 10.1007/s00442-025-05808-y

Vicki Mengyuan Zhang, Peter M Kotanen

{"title":"Low temperatures reduce establishment of new populations of invasive plants in a subarctic treeline environment.","authors":"Vicki Mengyuan Zhang, Peter M Kotanen","doi":"10.1007/s00442-025-05808-y","DOIUrl":"https://doi.org/10.1007/s00442-025-05808-y","url":null,"abstract":"Biological invasions are a serious global issue, but invasions are relatively less common at high latitudes, likely due to harsh environmental conditions and limited accessibility. An exception to this is human-settled and disturbed towns that may promote invasions and risk acting as sources of non-native species into the surrounding natural areas. For instance, Churchill, Manitoba, Canada (58ºN), is a treeline subarctic town and port connected by a railway to temperate North America. More than a hundred non-native plant species have been recorded within the town footprint and associated areas. While some have persisted for decades in these areas, none has spread into nearby tundra or boreal forest ecosystems. We used a greenhouse warming experiment to investigate the importance of increased growing season temperatures on three perennial non-native species (Linaria vulgaris, Plantago major, Taraxacum officinale), and used a transplant experiment to investigate non-native survival and growth after manual translocation to tundra and boreal forest roadside over several full years. We found that non-native plants were able to survive temporarily after manual translocation to roadsides adjacent to natural areas, with higher survival in warmer boreal forest roadsides. When we experimentally increased temperature, non-native seed germination increased, and non-native transplants trended toward increased survival and growth, again suggesting that temperature is a limiting factor. However, survival and growth of these non-native species consistently declined over time. Future global and climate change that results in increased warming therefore may shift these non-native species from invasion failure to success.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 10","pages":"167"},"PeriodicalIF":2.3,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145200533","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}

引用次数: 0

Phenological plasticity alters community structures of mountain Lepidoptera. 物候可塑性改变山地鳞翅目群落结构。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-09-29 DOI: 10.1007/s00442-025-05809-x

Werner Ulrich, Thomas Schmitt, Patrick Gros, Jan Christian Habel

{"title":"Phenological plasticity alters community structures of mountain Lepidoptera.","authors":"Werner Ulrich, Thomas Schmitt, Patrick Gros, Jan Christian Habel","doi":"10.1007/s00442-025-05809-x","DOIUrl":"10.1007/s00442-025-05809-x","url":null,"abstract":"The current increase in annual temperatures is altering the spatial distribution and timing of activity patterns, i.e. phenology, of many animal and plant species. Theory predicts such phenological plasticity to affect community composition and food web structure. We inferred temporal changes in Lepidoptera phenology in a mountainous region of northern Austria characterised by ongoing environmental and climate change. Long-term records (1960‒2022) representing 189,993 records of 2111 Lepidoptera species at two elevational belts served to assess phenology and species composition at a weekly resolution. Temporal trends towards earlier appearance in spring and prolonged activity in autumn altered short-term community composition at lower and higher elevations. Phenological plasticity was high throughout the study period and increased over the course of the years, becoming more and more fuzzy towards autumn. Variability in community composition decreased over the years. We found little evidence for synchronous phenological shifts at the community level. Species-specific phenological plasticity seems to prevail, causing constant changes in seasonal community composition. Long-term directional changes in community composition due to increasing temperature might change food webs and affect species interactions, particularly pollination, and possibly insect and plant diversity.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 10","pages":"165"},"PeriodicalIF":2.3,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12479686/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145192343","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}

引用次数: 0

From cities to vineyards: sex-specific phenotypic differences between habitats in a generalist bird species, the great tit (Parus major). 从城市到葡萄园：一种多面手鸟类物种，大山雀（Parus major）栖息地之间的性别特异性表型差异。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-09-27 DOI: 10.1007/s00442-025-05805-1

Frédéric Angelier, Bertille Mohring, François Brischoux

{"title":"From cities to vineyards: sex-specific phenotypic differences between habitats in a generalist bird species, the great tit (Parus major).","authors":"Frédéric Angelier, Bertille Mohring, François Brischoux","doi":"10.1007/s00442-025-05805-1","DOIUrl":"https://doi.org/10.1007/s00442-025-05805-1","url":null,"abstract":"In vertebrates, habitats differ in many biotic and abiotic factors with potential important consequences on fitness. Measuring phenotypic differences between habitats is a relevant approach to assess habitat quality for multiple categories of individuals such as males and females. Morphological traits have, for example, been used to successfully assess the impact of urbanization on birds. Surprisingly, this approach has rarely been used in farmlands, although it could be useful to assess the constraints of agricultural practices (i.e. habitat alteration, pesticides). We investigated the phenotypic differences between three habitats (forest, urban, vineyard) in male and female great tits (Parus major) to assess the constraints that occur in small cities and intensive vineyards, and to test if one sex may be more sensitive than the other to habitat-specific constraints. We measured three traits that integrate environmental constraints (body size, body condition, carotenoid-based plumage colouration). We found that urban great tits are of lower phenotypic quality (size, condition, plumage brightness) than their forest counterparts even when they live in small cities. Despite intensive agricultural practices, we found no difference in body size and plumage colouration between vineyard and forest birds, and vineyard birds were even in better condition than forest ones. We found that the differences in body condition between habitats were more pronounced for females relative to males. This supports the idea that females may be more sensitive to habitat-specific constraints than males. Our study suggests that food availability is probably not limited for this generalist species in vineyards, contrary to cities.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 10","pages":"164"},"PeriodicalIF":2.3,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182090","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}

引用次数: 0

Quantifying potential abiotic drivers of the 'nurse plant effect' in two dominant shrub species of the northern Chihuahuan Desert. 奇瓦瓦沙漠北部两种优势灌木“看护植物效应”的潜在非生物驱动因素量化研究

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-09-23 DOI: 10.1007/s00442-025-05803-3

Scott Ferrenberg, Akasha M Faist, Brooke B Osborne, Steven R Lee

{"title":"Quantifying potential abiotic drivers of the 'nurse plant effect' in two dominant shrub species of the northern Chihuahuan Desert.","authors":"Scott Ferrenberg, Akasha M Faist, Brooke B Osborne, Steven R Lee","doi":"10.1007/s00442-025-05803-3","DOIUrl":"https://doi.org/10.1007/s00442-025-05803-3","url":null,"abstract":"Aggregations of plants surrounded by sparsely vegetated areas in drylands can arise when larger plants facilitate the recruitment of smaller \"protégé\" plants-a phenomenon referred to as the \"nurse plant\" effect. Numerous drivers can generate a nurse plant effect; efforts to simultaneously quantify multiple drivers are rare. Given higher densities of protégés beneath the foundational shrubs Larrea tridentata and Neltuma glandulosa, multiple potential mechanisms underlying the nurse plant effect were quantified in the Chihuahuan Desert, New Mexico, USA. As expected, there was a greater concentration of soil nutrients and lower photosynthetically active radiation and soil temperatures beneath shrubs. Throughout the study, however, soil moisture was consistently higher in interspaces despite the greater water holding capacity of soils beneath shrubs. Nutrient concentrations were greater beneath N. glandulosa than L. tridentata, while protégé numbers did not significantly differ among the species. The canopy size of both species was positively related to understory shading, and the size of N. glandulosa was positively related to soil nitrogen and microbial biomass. The results of this study suggest that much of the abiotic nurse plant effect of this low-latitude system is explained by radiation interception and concomitant reductions in temperatures experienced by protégé plants as opposed to the direct effects of shrubs on soil water availability. As global change pressures intensify in drylands, a loss of perennial plant cover could have negative effects on soil biogeochemical pools and plant diversity. Quantification of the mechanisms driving the nurse plant effect across environmental and climatic gradients could improve our understanding of plant community dynamics in drylands.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 10","pages":"163"},"PeriodicalIF":2.3,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145125333","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}

引用次数: 0

Universal trade-off between vessel size and number and its implications for plant hydraulic function. 容器大小和数量之间的普遍权衡及其对植物水力功能的影响。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-09-22 DOI: 10.1007/s00442-025-05801-5

Xiaoping Chen, Jinlong Li, Karl J Niklas, Josep Peñuelas, Dandan Hu, Quanlin Zhong, Dongliang Cheng

{"title":"Universal trade-off between vessel size and number and its implications for plant hydraulic function.","authors":"Xiaoping Chen, Jinlong Li, Karl J Niklas, Josep Peñuelas, Dandan Hu, Quanlin Zhong, Dongliang Cheng","doi":"10.1007/s00442-025-05801-5","DOIUrl":"https://doi.org/10.1007/s00442-025-05801-5","url":null,"abstract":"The functional traits of angiosperm vessels influence water transport and, therefore, metabolism and performance. Among these traits is a trade-off between vessel diameter and number, known as the \"packing rule\", which has been abundantly confirmed. But how packing rule is connected to major dimensions of variation in hydraulic function remains unclear across and within diverse species. Using data from the primary literature spanning 3992 species for intraspecific data and 54 species for interspecific data, and newly acquired data from the branches of 80 tree species, we examine the ways that key xylem traits plus leaf mass covary with the packing rule for stems across and within species. We analyzed vessel diameter, individual vessel lumen area, vessel density (number of vessels per unit area), lumen fraction (the product of individual vessel lumen area and vessel density), non-vessel lumen fraction (total area minus total lumen area), specific stem conductivity, and wood density. Mean vessel lumen area scaled approximately as the - 1.0 power of vessel density across the pooled data. Little variation in the lumen fraction was attributable to total vessel lumen area, whereas the lumen fraction was positively correlated with vessel density in stems and branches across all species. Wood density was weakly negatively correlated with mean vessel lumen area, but was not correlated with either lumen or non-vessel lumen fractions in branches or stems across species. Vessel area scaled positive with leaf mass. Specific stem conductivity was correlated with mean vessel lumen area and wood density. These results validate and extend the implications of the packing rule, and identify and define the limits of hydraulic efficiency and safety strategies within and across angiosperm species.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 10","pages":"161"},"PeriodicalIF":2.3,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145124480","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}

引用次数: 0

Mechanisms for perennial grass dominance under small herbivore exclusion in an Inner Mongolian grassland. 内蒙古草原多年生草在小型食草动物排斥下的优势机制

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-09-22 DOI: 10.1007/s00442-025-05796-z

Yanjin Xie, Jiading Zhang, Ji Shi, Yongle Hua, Wanhong Wei, Baofa Yin

{"title":"Mechanisms for perennial grass dominance under small herbivore exclusion in an Inner Mongolian grassland.","authors":"Yanjin Xie, Jiading Zhang, Ji Shi, Yongle Hua, Wanhong Wei, Baofa Yin","doi":"10.1007/s00442-025-05796-z","DOIUrl":"https://doi.org/10.1007/s00442-025-05796-z","url":null,"abstract":"Herbivores significantly influence plant communities by modifying interspecies relationships, which in turn impacts ecosystem functioning. Although excluding herbivores is expected to enhance the dominance of perennial plants, few studies have consistently explored how plants adjust the growth-defense-reproduction trade-off in response to changes at different stages of herbivore exclusion. We conducted a controlled fence experiment in Inner Mongolia grassland to examine the effects of vole exclusion on the dominance and adaptation strategies of two perennial grasses. We found that twelve years of Brandt's vole grazing altered the plant community composition, but in the second year of the exclusion experiment, Leymus chinensis quickly regained its dominance. This rapid recovery was facilitated by L. chinensis strategically shifting its growth-defense-reproduction investment over time. In the early exclusion phase, L. chinensis quickly enhanced its competitive edge by prioritizing vegetative growth and clonal reproduction. As the exclusion period progressed, the species transitioned to seed-based dispersal to enhance population fitness. In contrast, the dominance of Cleistogenes squarrosa was largely influenced by interspecific interactions rather than intrinsic adaptive changes. These results reveal plants can dynamically adjust their resource investment strategies to optimize population fitness at different stages of vegetation recovery. This enhances our understanding of plant community dynamics and the establishment and maintenance of dominant species in grassland ecosystems.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 10","pages":"160"},"PeriodicalIF":2.3,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145113820","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}

引用次数: 0

Energy-safety trade-offs differ between winter-adapted species of prey to drive distinct activity patterns. 能量安全的权衡在适应冬季的猎物物种之间是不同的，以驱动不同的活动模式。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-09-22 DOI: 10.1007/s00442-025-05797-y

Shotaro Shiratsuru, William H Karasov, Jonathan N Pauli

{"title":"Energy-safety trade-offs differ between winter-adapted species of prey to drive distinct activity patterns.","authors":"Shotaro Shiratsuru, William H Karasov, Jonathan N Pauli","doi":"10.1007/s00442-025-05797-y","DOIUrl":"10.1007/s00442-025-05797-y","url":null,"abstract":"Energy acquisition and risk avoidance can drive prey activity, but mechanistic understanding of the process through which prey traits mediate this energy-safety trade-off is lacking. We analyzed daily activity in winter of two winter-adapted prey that differ in antipredator strategies and physiological constraints on activity: snowshoe hares (Lepus americanus) and North American porcupines (Erethizon dorsatum). First, we constructed an energetics-based model to predict daily activity time for each species based on temperature and corresponding mass-dependent thermoregulatory costs. We then examined what factors drove the deviations of observed activity from the model prediction based on energy balance, considering individual variation. Neither hares nor porcupines achieved energy balance when temperatures fell below the thermoneutral zone. Activity deviations of hares from energy balance were explained by environmental factors associated with risk and energetics, with nominal individual variation being exhibited. In contrast, activity deviations of porcupines were independent of the environmental factors, and porcupines exhibited pronounced individual variation in activity. Our findings highlight that antipredator strategies and physiological constraints on activity can mediate the behavioral energy-safety trade-off of prey. Notably, morphological protection and energy reserves facilitate behavioral flexibility by relaxing the energy-safety trade-off, whereas dependence on behavioral predator avoidance limits the behavioral flexibility of prey.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 10","pages":"162"},"PeriodicalIF":2.3,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12454541/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145125285","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}

引用次数: 0

Unraveling the determinants of body size shifts in a rodent species in the Zhoushan Archipelago, China. 中国舟山群岛啮齿动物体型变化的决定因素。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-09-19 DOI: 10.1007/s00442-025-05800-6

Chengxiu Zhan, Yanping Wang

{"title":"Unraveling the determinants of body size shifts in a rodent species in the Zhoushan Archipelago, China.","authors":"Chengxiu Zhan, Yanping Wang","doi":"10.1007/s00442-025-05800-6","DOIUrl":"10.1007/s00442-025-05800-6","url":null,"abstract":"Body size shifts of insular organisms have been widely observed, but few studies have simultaneously tested the combined and cascading effects of biotic and abiotic factors on morphological shifts. Here, we used two body size metrics (body length and body mass) of a small rodent (Rattus losea) to investigate its morphological shifts and the cascading mechanisms in the Zhoushan Archipelago, China. We used the live-trapping method to capture rodents and compared body size metrics between insular and mainland populations. We then constructed linear regression models to examine the relationships between the body size of rodents and three island attributes (island area, island isolation, and land use). Finally, we used structural equation modeling (SEM) to determine the cascading influences of three island attributes and four biotic factors (predator species richness, net primary productivity (NPP), capture rate, and rodent species richness) on body size. Island rodent populations had significantly larger body length and body mass than mainland counterparts. Both body length and body mass of insular rodents were negatively correlated with island area. SEMs showed that predator species richness had positive impacts on body length and body mass of insular rodents, while NPP had a negative effect on body mass. Moreover, SEMs revealed that island area positively influenced predator species richness, whereas land use negatively affected NPP. Body size shifts of the small rodent follow the prediction of the island rule (insular gigantism of small-sized species), but the determinants were strongly affected by which body size metrics were used. Therefore, both body length and body mass should be included in future studies to obtain a comprehensive understanding of the mechanisms underlying the body size shifts.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 10","pages":"159"},"PeriodicalIF":2.3,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145085537","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}

引用次数: 0

Fine root trait dynamics and their relationships with productivity across grasslands under extreme drought. 极端干旱条件下草原细根性状动态及其与生产力的关系

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2025-09-17 DOI: 10.1007/s00442-025-05799-w

Yuan Shi, Taofeek O Muraina, Saheed O Jimoh, Niwu Te, Lin Song, Jiaqi Chen, Hongqiang Wang, Qiang Yu, Xiaoan Zuo, Xingguo Han, Wentao Luo, Scott L Collins

{"title":"Fine root trait dynamics and their relationships with productivity across grasslands under extreme drought.","authors":"Yuan Shi, Taofeek O Muraina, Saheed O Jimoh, Niwu Te, Lin Song, Jiaqi Chen, Hongqiang Wang, Qiang Yu, Xiaoan Zuo, Xingguo Han, Wentao Luo, Scott L Collins","doi":"10.1007/s00442-025-05799-w","DOIUrl":"https://doi.org/10.1007/s00442-025-05799-w","url":null,"abstract":"Trait plasticity is critical to maintaining grassland productivity under climate change, such as drought. However, few studies have focused on the effects of multiyear extreme drought on community-level fine root traits and their corresponding links to productivity. We experimentally removed 66% of growing season precipitation for four years in meadow, typical, and desert grasslands in northern China and evaluated the effects of multiyear drought on community-weighted means (CWMs) and functional diversity of fine root traits (first-order roots), and their relationships with aboveground net primary productivity (ANPP). We found that, in general, root functional composition (CWMs and functional diversity) showed no significant responses to prolonged, extreme drought across all sites. Additionally, ANPP was positively correlated with CWMs of fine root carbon: nitrogen ratio within and across both control and drought plots, indicating that a high abundance of dominant species with high nitrogen-use efficiency promotes ANPP under droughts. In contrast, we found no significant relationship between functional diversity of fine root traits and ANPP. Our results demonstrate that fine root traits at the community level in semiarid grasslands remain relatively stable in response to long-term extreme drought. These findings provide important insights into the responses of fine root traits to extreme drought and highlight their critical roles in predicting the responses of ecosystem functions in these grasslands.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"207 10","pages":"158"},"PeriodicalIF":2.3,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145081334","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}

引用次数: 0

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