Oecologia最新文献_第9页

Extending the CWM approach to intraspecific trait variation: how to deal with overly optimistic standard tests? 将 CWM 方法扩展到种内性状变异：如何处理过于乐观的标准测试？

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2024-06-01 Epub Date: 2024-05-28 DOI: 10.1007/s00442-024-05568-1

David Zelený, Kenny Helsen, Yi-Nuo Lee

{"title":"Extending the CWM approach to intraspecific trait variation: how to deal with overly optimistic standard tests?","authors":"David Zelený, Kenny Helsen, Yi-Nuo Lee","doi":"10.1007/s00442-024-05568-1","DOIUrl":"10.1007/s00442-024-05568-1","url":null,"abstract":"Community weighted means (CWMs) are widely used to study the relationship between community-level functional traits and environment. For certain null hypotheses, CWM-environment relationships assessed by linear regression or ANOVA and tested by standard parametric tests are prone to inflated Type I error rates. Previous research has found that this problem can be solved by permutation tests (i.e., the max test). A recent extension of the CWM approach allows the inclusion of intraspecific trait variation (ITV) by the separate calculation of fixed, site-specific, and intraspecific CWMs. The question is whether the same Type I error rate inflation exists for the relationship between environment and site-specific or intraspecific CWM. Using simulated and real-world community datasets, we show that site-specific CWM-environment relationships have also inflated Type I error rate, and this rate is negatively related to the relative ITV magnitude. In contrast, for intraspecific CWM-environment relationships, standard parametric tests have the correct Type I error rate, although somewhat reduced statistical power. We introduce an ITV-extended version of the max test, which can solve the inflation problem for site-specific CWM-environment relationships and, without considering ITV, becomes equivalent to the \"original\" max test used for the CWM approach. We show that this new ITV-extended max test works well across the full possible magnitude of ITV on both simulated and real-world data. Most real datasets probably do not have intraspecific trait variation large enough to alleviate the problem of inflated Type I error rate, and published studies possibly report overly optimistic significance results.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":" ","pages":"257-269"},"PeriodicalIF":2.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141162161","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

Invertebrate sounds from photic to mesophotic coral reefs reveal vertical stratification and diel diversity. 从有光珊瑚礁到中生珊瑚礁的无脊椎动物声音揭示了垂直分层和昼夜多样性。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2024-06-01 Epub Date: 2024-06-03 DOI: 10.1007/s00442-024-05572-5

Xavier Raick, Éric Parmentier, Cédric Gervaise, David Lecchini, Gonzalo Pérez-Rosales, Héloïse Rouzé, Frédéric Bertucci, Lucia Di Iorio

{"title":"Invertebrate sounds from photic to mesophotic coral reefs reveal vertical stratification and diel diversity.","authors":"Xavier Raick, Éric Parmentier, Cédric Gervaise, David Lecchini, Gonzalo Pérez-Rosales, Héloïse Rouzé, Frédéric Bertucci, Lucia Di Iorio","doi":"10.1007/s00442-024-05572-5","DOIUrl":"10.1007/s00442-024-05572-5","url":null,"abstract":"Although mesophotic coral ecosystems account for approximately 80% of coral reefs, they remain largely unexplored due to their challenging accessibility. The acoustic richness within reefs has led scientists to consider passive acoustic monitoring as a reliable method for studying both altiphotic and mesophotic coral reefs. We investigated the relationship between benthic invertebrate sounds (1.5-22.5 kHz), depth, and benthic cover composition, key ecological factors that determine differences between altiphotic and mesophotic reefs. Diel patterns of snaps and peak frequencies were also explored at different depths to assess variations in biorhythms. Acoustic recorders were deployed at 20 m, 60 m, and 120 m depths across six islands in French Polynesia. The results indicated that depth is the primary driver of differences in broadband transient sound (BTS) soundscapes, with sound intensity decreasing as depth increases. At 20-60 m, sounds were louder at night. At 120 m depth, benthic activity rhythms exhibited low or highly variable levels of diel variation, likely a consequence of reduced solar irradiation. On three islands, a peculiar peak in the number of BTS was observed every day between 7 and 9 PM at 120 m, suggesting the presence of cyclic activities of a specific species. Our results support the existence of different invertebrate communities or distinct behaviors, particularly in deep mesophotic reefs. Overall, this study adds to the growing evidence supporting the use of passive acoustic monitoring to describe and understand ecological patterns in mesophotic reefs.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":" ","pages":"307-322"},"PeriodicalIF":2.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141200378","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

Concordance among lacustrine communities are low and inconsistent in the conterminous United States. 在美国本土，湖沼群落之间的一致性很低，而且不一致。

IF 2.3 2区环境科学与生态学

Oecologia Pub Date : 2024-06-01 Epub Date: 2024-05-31 DOI: 10.1007/s00442-024-05573-4

Carlos H L Liborio, Luis M Bini

{"title":"Concordance among lacustrine communities are low and inconsistent in the conterminous United States.","authors":"Carlos H L Liborio, Luis M Bini","doi":"10.1007/s00442-024-05573-4","DOIUrl":"10.1007/s00442-024-05573-4","url":null,"abstract":"Concordance occurs when two or more biological groups are correlated to each other. Examining the degree of concordance between communities has been a central goal in ecology. However, few studies have assessed the levels of community concordance at large spatial scales. We used a dataset obtained by the National Lakes Assessment (United States Environmental Protection Agency) to evaluate whether (i) the levels of concordance between aquatic communities were higher at the continental scale than within individual ecoregions of the United States and (ii) whether the levels of concordance between phytoplankton and zooplankton were higher than those between the plankton and macroinvertebrates communities. At the continental scale, the levels of concordance between different pairs of aquatic communities were low and did not exceed those within the ecoregions. Furthermore, levels of concordance varied considerably among ecoregions. Our results suggest that interactions between aquatic communities likely determined concordance patterns; however, the expectation of higher levels of concordance between the phytoplankton and zooplankton communities than between them and the macroinvertebrates community was not supported. The consistently low and variable levels of concordance suggest that using surrogate groups is not recommendable for monitoring lakes in the United States, both at the continental and regional scales. According to our results, the prospect of using the surrogacy approach was low even for aquatic communities that are highly interactive or driven by similar environmental factors.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":" ","pages":"271-279"},"PeriodicalIF":2.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141184079","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

Bumble bee diet breadth increases with local abundance and phenophase duration, not intraspecific variation in body size 大黄蜂的食性广度随当地丰度和物候期而增加，而不是随体型的种内变化而增加

IF 2.7 2区环境科学与生态学

Oecologia Pub Date : 2024-05-25 DOI: 10.1007/s00442-024-05560-9

Will R. Glenny, Justin B. Runyon, Laura A. Burkle

{"title":"Bumble bee diet breadth increases with local abundance and phenophase duration, not intraspecific variation in body size","authors":"Will R. Glenny, Justin B. Runyon, Laura A. Burkle","doi":"10.1007/s00442-024-05560-9","DOIUrl":"https://doi.org/10.1007/s00442-024-05560-9","url":null,"abstract":"Patterns of abundance across space and time, and intraspecific variation in body size, are two species attributes known to influence diet breadth and the structure of interaction networks. Yet, the relative influence of these attributes on diet breadth is often assumed to be equal among taxonomic groups, and the relationship between intraspecific variation in body size on interaction patterns is frequently neglected. We observed bee–flower interactions in multiple locations across Montana, USA, for two growing seasons and measured spatial and temporal patterns of abundance, along with interspecific and intraspecific variation in body size for prevalent species. We predicted that the association between spatial and temporal patterns of abundance and intraspecific variation in body size, and diet breadth, would be stronger for bumble bee compared to non-bumble bee species, because species with flexible diets and long activity periods can interact with more food items. Bumble bees had higher local abundance, occurred in many local communities, more intraspecific variation in body size, and longer phenophases compared to non-bumble bee species, but only local abundance and phenophase duration had a stronger positive association with the diet breadth of bumble bee compared to non-bumble bee species. Communities with a higher proportion of bumble bees also had higher intraspecific variation in body size at the network-level, and network-level intraspecific variation in body size was positively correlated with diet generalization. Our findings highlight that the association between species attributes and diet breadth changes depending on the taxonomic group, with implications for the structure of interaction networks.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":"46 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141146245","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

Light competition drives species replacement during secondary tropical forest succession. 光竞争推动热带次生林演替过程中的物种更替。

IF 2.7 2区环境科学与生态学

Oecologia Pub Date : 2024-05-01 Epub Date: 2024-05-10 DOI: 10.1007/s00442-024-05551-w

Tomonari Matsuo, Miguel Martínez-Ramos, Yusuke Onoda, Frans Bongers, Madelon Lohbeck, Lourens Poorter

{"title":"Light competition drives species replacement during secondary tropical forest succession.","authors":"Tomonari Matsuo, Miguel Martínez-Ramos, Yusuke Onoda, Frans Bongers, Madelon Lohbeck, Lourens Poorter","doi":"10.1007/s00442-024-05551-w","DOIUrl":"10.1007/s00442-024-05551-w","url":null,"abstract":"Light competition is thought to drive successional shifts in species dominance in closed vegetations, but few studies have assessed this for species-rich and vertically structured tropical forests. We analyzed how light competition drives species replacement during succession, and how cross-species variation in light competition strategies is determined by underlying species traits. To do so, we used chronosequence approach in which we compared 14 Mexican tropical secondary rainforest stands that differ in age (8-32 year-old). For each tree, height and stem diameter were monitored for 2 years to calculate relative biomass growth rate (RGR, the aboveground biomass gain per unit aboveground tree biomass per year). For each stand, 3D light profiles were measured to estimate individuals' light interception to calculate light interception efficiency (LIE, intercepted light per unit biomass per year) and light use efficiency (LUE, biomass growth per intercepted light). Throughout succession, species with higher RGR attained higher changes in species dominance and thus increased their dominance over time. Both light competition strategies (LIE and LUE) increased RGR. In early succession, a high LIE and its associated traits (large crown leaf mass and low wood density) are more important for RGR. During succession, forest structure builds up, leading to lower understory light levels. In later succession, a high LUE and its associated traits (high wood density and leaf mass per area) become more important for RGR. Therefore, successional changes in relative importance of light competition strategies drive shifts in species dominance during tropical rainforest succession.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":" ","pages":"1-11"},"PeriodicalIF":2.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11144147/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140899173","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

Winter-ground microhabitat use by differently coloured phenotypes affects return rate in a long-distance migratory bird. 不同颜色表型对冬地微生境的利用会影响一种长途迁徙鸟类的返回率。

IF 2.7 2区环境科学与生态学

Oecologia Pub Date : 2024-05-01 Epub Date: 2024-05-09 DOI: 10.1007/s00442-024-05561-8

Tiia Kärkkäinen, Keith A Hobson, Kevin J Kardynal, Toni Laaksonen

{"title":"Winter-ground microhabitat use by differently coloured phenotypes affects return rate in a long-distance migratory bird.","authors":"Tiia Kärkkäinen, Keith A Hobson, Kevin J Kardynal, Toni Laaksonen","doi":"10.1007/s00442-024-05561-8","DOIUrl":"10.1007/s00442-024-05561-8","url":null,"abstract":"Migratory bird populations are declining globally at alarming rates. Non-breeding site conditions affect breeding populations, but generalising non-breeding habitat conditions over large spatial regions cannot address potential fine-scale differences across landscapes or local populations. Plumage characteristics can mediate the effects of environmental conditions on individual fitness. However, whether different phenotypes use distinctive non-breeding sites, and whether they respond to non-breeding site conditions differently remains largely unknown. Stable isotopes (δ13C, δ15N, δ2H) of inert tissues are useful to infer habitat characteristics and geographic origins where those tissues were grown. We collected winter-grown feathers from pied flycatchers (Ficedula hypoleuca) on their breeding grounds over several years from males whose dorsal plumage colouration ranged continuously from brown to black and assessed their stable isotope values as proxies of local habitat conditions. Based on feather δ2H profiles we found that browner males spent their non-breeding season in drier habitats than black males. Assignment to origin analysis shows potential regional non-breeding ground separation between differently coloured males. High within-individual repeatability of both δ13C and δ15N indicate the pied flycatcher males return yearly to similar areas. Blacker males were more likely to return to the breeding grounds after dry years compared with brown males. The opposite was found in wet years. Our study demonstrates that different phenotypes are exposed to different non-breeding site conditions which can differentially affect individual survivorship. This has important ramifications for population dynamics under predicted climate change scenarios where especially brown phenotype pied flycatcher males may be under a risk of decreasing.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":" ","pages":"163-176"},"PeriodicalIF":2.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11144160/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140899220","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

Comparing long-term patterns of spread of native and invasive plants in a successional forest. 比较原生植物和入侵植物在演替森林中的长期传播模式。

IF 2.7 2区环境科学与生态学

Oecologia Pub Date : 2024-05-01 Epub Date: 2024-05-17 DOI: 10.1007/s00442-024-05554-7

Matthew H Yamamoto, Chad C Jones

{"title":"Comparing long-term patterns of spread of native and invasive plants in a successional forest.","authors":"Matthew H Yamamoto, Chad C Jones","doi":"10.1007/s00442-024-05554-7","DOIUrl":"10.1007/s00442-024-05554-7","url":null,"abstract":"A fundamental question in invasive plant ecology is whether invasive and native plants have different ecological roles. Differences in functional traits have been explored, but we lack a comparison of the factors affecting the spread of co-occurring natives and invasives. Some have proposed that to succeed, invasives would colonize a wider variety of sites, would disperse farther, or would be better at colonizing sites with more available light and soil nutrients than natives. We examined patterns of spread over 70 years in a regenerating forest in Connecticut, USA, where both native and invasive species acted as colonizers. We compared seven invasive and 19 native species in the characteristics of colonized plots, variation in these characteristics, and the importance of site variables for colonization. We found little support for the hypotheses that invasive plants succeed by dispersing farther than native plants or by having a broader range of site tolerances. Colonization by invasives was also not more dependent on light than colonization by natives. Like native understory species, invasive plants spread into closed-canopy forest and species-rich communities despite earlier predictions that these communities would resist invasion. The biggest differences were that soil nitrate and the initial land cover being open field increased the odds of colonization for most invasives but only for some natives. In large part, though, the spread of native and invasive plants was affected by similar factors.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":" ","pages":"13-25"},"PeriodicalIF":2.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140956846","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

Small but strong: herbivory by sap-feeding insect reduces plant progeny growth but enhances direct and indirect anti-herbivore defenses. 小而强：食汁昆虫的食草行为会减少植物后代的生长，但会增强直接和间接的抗食草动物防御能力。

IF 2.7 2区环境科学与生态学

Oecologia Pub Date : 2024-05-01 Epub Date: 2024-05-23 DOI: 10.1007/s00442-024-05567-2

Livia Aparecida de Souza, Maria Fernanda G V Peñaflor

{"title":"Small but strong: herbivory by sap-feeding insect reduces plant progeny growth but enhances direct and indirect anti-herbivore defenses.","authors":"Livia Aparecida de Souza, Maria Fernanda G V Peñaflor","doi":"10.1007/s00442-024-05567-2","DOIUrl":"10.1007/s00442-024-05567-2","url":null,"abstract":"The transmission of resistance traits to herbivores across subsequent generations is an important strategy employed by plants to enhance their fitness in environments with high herbivore pressure. However, our understanding of the impact of maternal herbivory on direct and indirect induced chemical defenses of progeny, as well as the associated costs, is currently limited to herbivory by leaf-chewing insects. In this study, we investigated the transgenerational effects of a sap-feeding insect, the green peach aphid Myzus persicae, on direct and indirect chemical defenses of bell pepper plants (Capsicum annuum), and whether the effects entail costs to plant growth. Aphid herbivory on parental plants led to a reduced number of seeds per fruit, which exhibited lower germination rates and produced smaller seedlings compared to those from non-infested parental plants. In contrast, the progeny of aphid-infested plants were less preferred as hosts by aphids and less suitable than the progeny of non-infested plants. This enhanced resistance in the progeny of aphid-infested plants coincided with elevated levels of both constitutive and herbivore-induced total phenolic compounds, compared to the progeny of non-infested plants. Furthermore, the progeny of aphid-infested plants emitted herbivore-induced plant volatiles (HIPVs) that were more attractive to the aphid parasitoid Aphidius platensis than those emitted by the progeny of non-infested plants. Our results indicate that herbivory by sap-feeding insect induces transgenerational resistance on progeny bell pepper plants, albeit at the expense of vegetative growth.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":" ","pages":"191-201"},"PeriodicalIF":2.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141088608","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

Who holds the reins? Context-dependent resource allocation in the mutualism between fig trees and their fig wasp pollinators. 谁掌握着缰绳？无花果树与无花果黄蜂授粉者之间互惠关系中的资源分配与环境有关。

IF 2.7 2区环境科学与生态学

Oecologia Pub Date : 2024-05-01 Epub Date: 2024-05-27 DOI: 10.1007/s00442-024-05566-3

Manasa Kulkarni, Nehal Vijay Naik, Renee M Borges

{"title":"Who holds the reins? Context-dependent resource allocation in the mutualism between fig trees and their fig wasp pollinators.","authors":"Manasa Kulkarni, Nehal Vijay Naik, Renee M Borges","doi":"10.1007/s00442-024-05566-3","DOIUrl":"10.1007/s00442-024-05566-3","url":null,"abstract":"Mutualisms are consumer-resource interactions, in which goods and services are exchanged. Biological market theory states that exchanges should be regulated by both partners. However, most studies on mutualisms are one-sided, focusing on the control exercised by host organisms on their symbionts. In the brood-site pollination mutualism between fig trees and their symbiont wasp pollinators, galled flowers are development sites for pollinator larvae and are exchanged for pollination services. We determined if pollinator galls influenced resource allocation to fig inflorescences called syconia and considered feedbacks from the host tree. We experimentally produced syconia containing only seeds (S), only pollinator galls (G) or seeds and galls (SG) with varying number of introduced female pollinator wasps, i.e., foundress wasps. Biomass allocation to syconia was affected by foundress numbers and treatment groups; SG treatments received highest biomass allocation at low foundress numbers, and both G and SG treatments at high foundress numbers. Seeds are important determinants of allocation at low foundress numbers; galls are likely more influential at high foundress numbers. Most allocation in the G and SG treatment was to the syconium wall, likely as protection from parasitoids and temperature/humidity fluctuations. Dry mass of individual seeds and wasps (except at low foundress numbers) was unchanged between treatment groups, indicating seeds and wasps regulate resource flow into them, with lower flow into galls containing the smaller males compared to females commensurate with sexual dimorphism. We demonstrate the importance of considering the direct role of symbionts in accessing resources and controlling exchanges within mutualisms.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":" ","pages":"215-227"},"PeriodicalIF":2.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141155410","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

Trait-dependent importance of intraspecific variation relative to species turnover in determining community functional composition following nutrient enrichment. 种内变异相对于物种更替在决定营养富集后群落功能组成方面的重要性取决于性状。

IF 2.7 2区环境科学与生态学

Oecologia Pub Date : 2024-05-01 Epub Date: 2024-05-02 DOI: 10.1007/s00442-024-05555-6

Xiaolong Zhou, Liuwen Dong, Yongjun Zhang, Jingdong Li, Zhengwei Ren, Kechang Niu

{"title":"Trait-dependent importance of intraspecific variation relative to species turnover in determining community functional composition following nutrient enrichment.","authors":"Xiaolong Zhou, Liuwen Dong, Yongjun Zhang, Jingdong Li, Zhengwei Ren, Kechang Niu","doi":"10.1007/s00442-024-05555-6","DOIUrl":"10.1007/s00442-024-05555-6","url":null,"abstract":"Community weighted mean trait, i.e., functional composition, has been extensively used for upscaling of individual traits to the community functional attributes and ecosystem functioning in recent years. Yet, the importance of intraspecific trait variation relative to species turnover in determining changes in CWM still remains unclear, especially under nutrient enrichment scenarios. In this study, we conducted a global data synthesis analysis and three nutrient addition experiments in two sites of alpine grassland to reveal the extent to which species turnover and ITV contribute to shift in CWM in response to nutrient enrichment. The results consistently show that the importance of ITV relative to species turnover in regulating CWM in response to nutrient enrichment strongly depends on trait attributes rather than on environmental factors (fertilization type, climatic factors, soil properties, and light transmittance). For whole plant traits (height) and leaf morphological traits, species turnover is generally more important than ITV in determining CWM following most treatments of nutrient addition. However, for leaf nutrient traits, ITV outweighed species turnover in determining shifts in CWM in response to almost all treatments of nutrient addition, regardless of types and gradients of the nutrient addition. Thus, our study not only provides robust evidence for trait-dependent importance of ITV in mediating community functional composition, but also highlights the need to consider the nature of functional traits in linking ITV to community assembly and ecosystem functioning under global nutrient enrichment scenarios.","PeriodicalId":19473,"journal":{"name":"Oecologia","volume":" ","pages":"107-119"},"PeriodicalIF":2.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140849484","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