Ecosystems最新文献

{"title":"Changes in Biotic Mechanisms of Phytoplankton Biomass Stability Along a Eutrophic Gradient","authors":"Min Zhang, Xiaoli Shi, Zhen Yang, Yang Yu, Limei Shi, Yangyang Meng, Liya Wang","doi":"10.1007/s10021-023-00884-8","DOIUrl":"https://doi.org/10.1007/s10021-023-00884-8","url":null,"abstract":"<p>Understanding the biotic mechanisms of community stability in variable environments has been a focal point of fundamental ecological research. A multitude of mechanisms, encompassing compensatory dynamics arising from negative species covariance, portfolio effect linked to species richness and evenness, and dominant species stability, have been found to collectively enhance community stability. However, it is not clear how their stabilizing effects change and contribute to the maintenance of community stability along environmental gradients. We performed a ten-year investigation in a large shallow lake with a eutrophic gradient across space. With the dataset, we quantified the role of the three stability mechanisms, and their changes in effect size along the eutrophic gradient to determine their relative importance in biomass stability. Our results showed that the biomass stability shifted from one stable state at eutrophic sites to another stable state at hypertrophic sites, and biomass stability was positively correlated with composition stability. In the relatively stable state, biomass stability exhibited a closely synchronized variation along with compositional stability in response to environmental changes. Conversely, in the unstable state, biomass stability displayed weaker sensitivity to environmental changes compared to compositional stability. The effect sizes of different biotic mechanisms of biomass stability varied across the eutrophic gradient. Compensatory dynamics emerged as the primary force governing biomass stability in eutrophic waters, overshadowing the relatively weak impact of the portfolio effect, which might help resist the shift from turbid state to clear state with decreasing nutrient concentrations. However, as nutrient levels increased, the primary force shifted from compensatory dynamics toward the dominant species stability. This study improves our understanding for the biotic mechanisms of phytoplankton community responding to nutrients mitigation in eutrophic waters, which might be one of the most important ecological components for managing communities to maintain ecosystem functioning.</p>","PeriodicalId":11406,"journal":{"name":"Ecosystems","volume":"33 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138517515","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":"Woody Plant–Soil Relationships in Interstitial Spaces Have Implications for Future Forests Within and Beyond Urban Areas","authors":"Gisselle A. Mejía, Peter M. Groffman, Meghan L. Avolio, Anika R. Bratt, Jeannine Cavender-Bares, Noortje H. Grijseels, Sharon J. Hall, James Heffernan, Sarah E. Hobbie, Susannah B. Lerman, Jennifer L. Morse, Desiree L. Narango, Christopher Neill, Josep Padullés Cubino, Tara L. E. Trammell","doi":"10.1007/s10021-023-00881-x","DOIUrl":"https://doi.org/10.1007/s10021-023-00881-x","url":null,"abstract":"<p>Relatively unmanaged interstitial areas at the residential–wildland interface can support the development of novel woody plant communities. Community assembly processes in urban areas involve interactions between spontaneous and cultivated species pools that include native, introduced (exotic/non-native) and invasive species. The potential of these communities to spread under changing climate conditions has implications for the future trajectories of forests within and beyond urban areas. We quantified woody vegetation (including trees and shrubs) in relatively unmanaged “interstitial” areas at the residential–wildland interface and in exurban reference natural areas in six metropolitan regions across the continental USA. In addition, we analyzed soil N and C cycling processes to ensure that there were no major anthropogenic differences between reference and interstitial sites such as compaction, profile disturbance or fertilization, and to explore effects of novel plant communities on soil processes. We observed marked differences in woody plant community composition between interstitial and reference sites in most metropolitan regions. These differences appeared to be driven by the expanded species pool in urban areas. There were no obvious anthropogenic effects on soils, enabling us to determine that compositional differences between interstitial and reference areas were associated with variation in soil N availability. Our observations of the formation of novel communities in interstitial spaces in six cities across a very broad range of climates, suggest that our results have relevance for how forests within and beyond urban areas are assessed and managed to provide ecosystem services and resilience that rely on native biodiversity.</p>","PeriodicalId":11406,"journal":{"name":"Ecosystems","volume":"121 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138517491","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":"Carbon Stocks and Transfers in Coniferous Boreal Forests Along a Latitudinal Gradient","authors":"Päivi Merilä, Antti-Jussi Lindroos, Heljä-Sisko Helmisaari, Sari Hilli, Tiina M. Nieminen, Pekka Nöjd, Pasi Rautio, Maija Salemaa, Boris Ťupek, Liisa Ukonmaanaho","doi":"10.1007/s10021-023-00879-5","DOIUrl":"https://doi.org/10.1007/s10021-023-00879-5","url":null,"abstract":"Abstract Carbon (C) sequestrated in the boreal forest ecosystems plays an important role in climate regulation. This study’s objectives were to quantify the differences in the components of the forest C cycle along a 1000 km latitudinal gradient within the boreal region and between dominant coniferous species in Fennoscandia. The study included seven xeric–sub-xeric and eight mesic–herb-rich heath forests dominated by Scots pine and Norway spruce, respectively. The total site carbon stock (CS) ranged from 81 to 260 Mg ha −1 . The largest ecosystem component CSs were tree stems, mineral soil, and humus layer, representing 30 ± 2%, 28 ± 2%, and 13 ± 1% of total CS, respectively. On average, the spruce sites had 40% more C than the pine sites, and CS stored in most compartments was higher on spruce than on pine sites. As exceptions, understorey vegetation and litter layer had a larger CS on pine than on spruce sites. The northern sites had an average of 58% less C than the southern sites. Humus layer CS was the only compartment showing no latitudinal trends. Northern sites had a significantly larger fine and small root CS and understorey CS than southern sites. Most CS compartments were significantly correlated with litterfall C transfer components. Dissolved organic carbon (DOC) flux in throughfall was positively correlated with the aboveground tree compartment CS. Our study revealed patterns of C distribution in major boreal forest ecosystems along latitudinal and fertility gradients, which may serve as a reference for Earth system models and in the evaluation of their projections.","PeriodicalId":11406,"journal":{"name":"Ecosystems","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135994401","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":"Respiratory Acclimation of Tropical Forest Roots in Response to In Situ Experimental Warming and Hurricane Disturbance","authors":"Rob Tunison, Tana E. Wood, Sasha C. Reed, Molly A. Cavaleri","doi":"10.1007/s10021-023-00880-y","DOIUrl":"https://doi.org/10.1007/s10021-023-00880-y","url":null,"abstract":"","PeriodicalId":11406,"journal":{"name":"Ecosystems","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135994548","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":"Integrating Reservoirs into the Dissolved Organic Matter Versus Primary Production Paradigm: How Does Chlorophyll-a Change Across Dissolved Organic Carbon Concentrations in Reservoirs?","authors":"Rachel M. Pilla, Natalie A. Griffiths","doi":"10.1007/s10021-023-00878-6","DOIUrl":"https://doi.org/10.1007/s10021-023-00878-6","url":null,"abstract":"","PeriodicalId":11406,"journal":{"name":"Ecosystems","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135689409","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":"Compensatory Mechanisms Absorb Regional Carbon Losses Within a Rapidly Shifting Coastal Mosaic","authors":"Alexander J. Smith, Karen McGlathery, Yaping Chen, Carolyn J. Ewers Lewis, Scott C. Doney, Keryn Gedan, Carly K. LaRoche, Peter Berg, Michael L. Pace, Julie C. Zinnert, Matthew L. Kirwan","doi":"10.1007/s10021-023-00877-7","DOIUrl":"https://doi.org/10.1007/s10021-023-00877-7","url":null,"abstract":"","PeriodicalId":11406,"journal":{"name":"Ecosystems","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135394221","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":"Suspended Sections Within Downed Deadwood Are Drier, Have Altered Decomposer Communities, and Slower Decomposition","authors":"Ángela M. Barrera-Bello, Jane M. Lucas, Evan M. Gora","doi":"10.1007/s10021-023-00874-w","DOIUrl":"https://doi.org/10.1007/s10021-023-00874-w","url":null,"abstract":"","PeriodicalId":11406,"journal":{"name":"Ecosystems","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135394489","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":"Impact of Drought on Ecohydrology of Southern California Grassland and Shrubland","authors":"Luciana Chavez Rodriguez, Scot Parker, Nicole M. Fiore, Steven D. Allison, M. L. Goulden","doi":"10.1007/s10021-023-00876-8","DOIUrl":"https://doi.org/10.1007/s10021-023-00876-8","url":null,"abstract":"","PeriodicalId":11406,"journal":{"name":"Ecosystems","volume":"48 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41305606","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":"Trait-Based Response of Deadwood and Tree-Related Microhabitats to Decline in Temperate Lowland and Montane Forests","authors":"C. Bouget, J. Cours, L. Larrieu, G. Parmain, J. Müller, V. Speckens, A. Sallé","doi":"10.1007/s10021-023-00875-9","DOIUrl":"https://doi.org/10.1007/s10021-023-00875-9","url":null,"abstract":"","PeriodicalId":11406,"journal":{"name":"Ecosystems","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48730596","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":"Correction to: Early Differentiation of the Phenotypic Space and Performance of Juniperus thurifera Across Woodland-Expanding Area","authors":"R. Benavides, B. Acuña‐Míguez, Fernando Valladares","doi":"10.1007/s10021-023-00873-x","DOIUrl":"https://doi.org/10.1007/s10021-023-00873-x","url":null,"abstract":"","PeriodicalId":11406,"journal":{"name":"Ecosystems","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47340861","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}