Aquatic Ecology最新文献

{"title":"Textile and laundry innovations for microfiber pollution mitigation: a comprehensive review","authors":"Odunayo Blessing Adesina,&nbsp;Jedidiah Solomon Onwubiko,&nbsp;Amoah-Nuamah John,&nbsp;Berha Ashenafi,&nbsp;Alexander Ogwuche Adamudu","doi":"10.1007/s10452-026-10288-0","DOIUrl":"10.1007/s10452-026-10288-0","url":null,"abstract":"<div><p>Microfiber (MF) pollution has emerged as a globally pervasive contaminant across aquatic, terrestrial, and atmospheric systems, driven predominantly by textile emissions during laundering and across the textile manufacturing chain (from fiber processing to finishing). While the vast majority of MF sources originate in textiles, mitigation calls for integrated interventions that include fiber engineering, fabric construction, end-of-pipe capture, and legislative reform. This review synthesizes evidence from 2010 to 2024 on: (i) textile design strategies, including low-shedding constructions, surface treatments, and biodegradable blends; (ii) laundry technologies encompassing machine architecture, filtration devices, and detergent formulations; and (iii) governance practices. Moving beyond descriptive summaries, we bridge the gap between industrial engineering and aquatic ecology by defining MFs within an environmental context (&lt; 5 mm) and critically evaluating the trade-offs between 'design-out' solutions and end-of-pipe capture. We highlight how these innovations directly protect fundamental aquatic processes, such as nutrient cycling and trophic stability. We conclude by proposing an integrated Systems Roadmap that aligns textile manufacturing, appliance design, and ecological protection, providing a holistic framework for mitigating the impact of microfibers on the global aquatic environment.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The distribution and photobiont characteristics of two lichen species along a resource gradient from the shoreline of Lake Mývatn, Iceland","authors":"Guillermo J. Ortiz,&nbsp;Jamieson C. Botsch,&nbsp;K. Riley Book,&nbsp;Anthony R. Ives","doi":"10.1007/s10452-026-10289-z","DOIUrl":"10.1007/s10452-026-10289-z","url":null,"abstract":"<div><p>Organisms that move across ecosystem boundaries can create resource gradients in adjacent ecosystems. Midges that emerge from Lake Mývatn, Iceland, are deposited as nutrient-rich carcasses on land, and this generates a nutrient gradient from its shoreline. We contrasted the distribution and photobiont characteristics of two lichen species, <i>Nephromopsis cucullata</i> and <i>Peltigera leucophlebia,</i> in a lava field adjacent to Mývatn along this midge deposition gradient. While the primary photobionts of <i>P</i>. <i>leucophlebia</i> and <i>N</i>. <i>cucullata</i> are green algae, <i>P</i>. <i>leucophlebia</i> also contain nitrogen-fixing cyanobacteria. Because the landscape surrounding Mývatn is generally nitrogen-limited and midge carcasses are nitrogen-rich, we hypothesized that the different photobiont associations would result in contrasting distributions between species and contrasting photobiont characteristics within species along the midge gradient. We found that <i>N</i>. <i>cucullata</i> was at its highest density 100 m from the lakeshore, while <i>P</i>. <i>leucophlebia</i> was more evenly distributed. Both species had a larger photobiont layer thickness near the lakeshore, although <i>N</i>. <i>cucullata</i> had a negative relationship between chlorophyll-a concentration (as measured using a greenness index) and distance, whereas <i>P</i>. <i>leucophlebia</i> showed no pattern. The contrasts between <i>N</i>. <i>cucullata</i> and <i>P</i>. <i>leucophlebia</i> may be related to the presence of cyanobacteria in <i>P</i>. <i>leucophlebia</i>, which provide nitrogen and, in part, decouple <i>P</i>. <i>leucophlebia</i> from the midge nitrogen deposition gradient. This study illustrates that nutrient gradients may alter lichen distributions and photobiont characteristics and suggests that these responses are primarily taxon-specific. Furthermore, it highlights the capacity for the dynamics of aquatic ecosystems to propagate into adjacent landscapes.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10289-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Benthic and pelagic nutrients vary over space and time in a shallow subarctic lake","authors":"Jamieson C. Botsch,&nbsp;K. Riley Book,&nbsp;Joseph S. Phillips,&nbsp;Anthony R. Ives","doi":"10.1007/s10452-026-10260-y","DOIUrl":"10.1007/s10452-026-10260-y","url":null,"abstract":"<div><p>Inorganic nutrients can vary over space and time in lakes due to abiotic and biotic factors. To understand the drivers of spatial variation in nutrients in shallow Lake Mývatn, Iceland, we mapped dissolved inorganic and organic nitrogen (N) and phosphorus (P) concentrations in benthic (interstitial) and pelagic zones in summer 2021 during a lake-wide pelagic cyanobacterial bloom and in spring 2022 when there was no cyanobacterial bloom. We expected the bloom to affect nutrient distributions between zones through shading and N₂ fixation. Nutrient concentrations were neither correlated between the benthic and pelagic zone nor correlated between sampling events. The low ratio of total dissolved N to P implied that the benthos was N-limited, while the pelagic zone switched from N to P limitation during the summer cyanobacterial bloom. Interstitial ammonium concentrations were higher in summer than spring sampling events, positively associated with depth, and negatively associated with epipelic diatom density, associations that were stronger in spring. In summer, pelagic phosphate was highest near the springs; this pattern was reversed in the spring sampling event, although the effect size was weak. Variation in interstitial phosphate was not strongly associated with any of our predictors. Pelagic ammonium, and both interstitial and pelagic nitrate, were near or below detection limits. Together, these results highlight the capacity for large spatiotemporal variation in dissolved inorganic and organic N and P concentrations and nutrient limitation which will impact the structure and function of the Mývatn ecosystem.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10260-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"River benthic diatom assemblages exhibit biogeographical patterns even at small scales","authors":"Andreas Masouras,&nbsp;Anthi Oikonomou,&nbsp;Ioannis Karaouzas,&nbsp;Elias Dimitriou,&nbsp;George Tsirtsis,&nbsp;Evangelia Smeti","doi":"10.1007/s10452-026-10286-2","DOIUrl":"10.1007/s10452-026-10286-2","url":null,"abstract":"<div><p>Understanding the geographical and environmental drivers of α- and β-diversity is essential in biogeography and ecology. Biogeographical patterns of microorganisms are harder to define and interpret compared to larger organisms, and are mostly apparent on broad regional scales. This study examines biodiversity patterns of benthic diatoms at a smaller scale, i.e. in Greek rivers. We used 233 sites across four biogeographical areas defined by freshwater fish communities. We investigated Species-Area Relationships and α-diversity patterns through taxonomic and functional richness and β-diversity using the Sorensen index on presence-absence data in each biogeographical area. Our findings revealed a positive relationship between species richness and drainage area of river basins. Moreover, α-diversity was higher in northern Greece, whereas β-diversity differentiated communities of western Greece through species turnover, highlighting spatial influences. Environmental variables correlated with taxonomic α-diversity but not with taxonomic or functional β-diversity. This study constitutes the first effort to investigate different biodiversity components of benthic diatoms in a Balkan hotspot by elucidating the role of spatial and environmental factors in shaping biogeographical patterns at a smaller scale. Since the emergence of biogeographical patterns is often scale and data dependent, additional data could further improve our understanding of benthic diatom diversity patterns.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10286-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Effects of different light intensities on functional traits of the native submerged plant Hydrilla verticillata (Hydrocharitaceae): implication for restoring wetland vegetation","authors":"Shanshan Luo,&nbsp;Chenglu Chen,&nbsp;Geying Lai,&nbsp;Linling Tang,&nbsp;Yun Cao","doi":"10.1007/s10452-026-10290-6","DOIUrl":"10.1007/s10452-026-10290-6","url":null,"abstract":"<div><p>Light intensity affects the variation and evolution of functional traits in submerged plants, which in turn act on individual plant and ecosystem functions. A laboratory experiment was conducted to simulate the hydrological light conditions of the main distribution areas of submerged plants in PoySSSang Lake, and to explore the effects of light intensity on the functional traits and adaptive responses of the dominant submerged species <i>Hydrilla verticillata</i> (L.f.) Royle. The results are as follows: (1) The plant height, stem node growth, internode spacing length and asexual propagule growth of <i>H. verticillata</i> were inhibited under low light conditions (5% and 10% natural light); (2) Over the 30-day experimental period, the SOD activity and MDA content of <i>H. verticillata</i> in the 5%, 10%, and CK light groups reached relatively higher levels. Under 5% and 10% natural light conditions, the CAT activity of <i>H. verticillata</i> increased by 5.14 and 3.07 μmol/(g·min), respectively; (3) The membrane structure of <i>H. verticillata</i> was damaged under the conditions of 5%, 10% natural light and full-light conditions; (4) <i>H. verticillata</i> showed different growth strategies in response to different light intensities. The results guide the restoration and sustainable development of wetland aquatic ecosystems. They can be incorporated into models in the future to improve the prediction of submerged plant species distribution and area.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Comprehensive comparisons of behavior performances in various fish species after caudal fin amputation by using a 3D locomotion test","authors":"Gilbert Audira,&nbsp;Tzu-Ming Tseng,&nbsp;Kevin Adi Kurnia,&nbsp;Chih-Hsin Hung,&nbsp;Chung-Der Hsiao,&nbsp;Cheng-Yo Yen","doi":"10.1007/s10452-026-10287-1","DOIUrl":"10.1007/s10452-026-10287-1","url":null,"abstract":"<div><p>Fin amputation in fish is one of the procedures that is routinely performed in fisheries research, such as for genomic screening or studying fish populations. Unfortunately, this procedure is painful for fish and could adversely affect a variety of their behaviors. However, there were still big gaps in the knowledge of behavioral response differences between various fish species after a caudal fin excision. Therefore, the present study aimed to address and comprehensively compare the impact of acute stress induced by a caudal fin amputation on the modulation of behavioral responses of eight fish species, which were <i>Chromobotia macracanthus</i>, <i>Balantiocheilos melanopterus</i>, <i>Acarichthys heckelii</i>, <i>Puntigrus tetrazona</i>, <i>Amatitlania nigrofasciata</i>, <i>Oryzias latipes</i>, <i>Oryzias woworae</i>, and <i>Danio rerio</i>. Behavior was assessed at baseline (pre-amputation), and at 1 h, 1 day, 3 days, and 5 days post-amputation (1 hpa, 1 dpa, 3 dpa, and 5 dpa, respectively). From the results, a trend of a decrease in locomotion activity was shown in the majority of the tested fish in different magnitudes, with a gradual recovery from 3 or 5 dpa. However, <i>C. macracanthus</i>, <i>B. melanopterus</i>, and <i>A. heckelii</i> displayed a relatively unchanged locomotor activity at 1 hpa, with a trend of a decrement that occurred at a later observation time for <i>C. macracanthus</i> and <i>A. heckelii</i>. Later, this result was also supported by the PCA and heatmap clustering analyses that grouped these three fishes in a single major cluster since these fishes displayed a different acute behavior response, especially in terms of exploratory behaviors, than other tested fishes, including zebrafish (<i>D. rerio</i>). Taken together, this study highlighted that acute stress by caudal fin amputation might not typically result in profound behavior changes in some fish species. In addition, the current findings also might contribute to improving the current knowledge of nociceptive responses in various species of fish that could help in fish refinement that could be adopted across a wide range of biological disciplines.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147559772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Community structure and residence time of fishes associated with select soft coral taxa in Anda, Pangasinan, northwestern Philippines","authors":"Romina Therese S. Lim,&nbsp;Cleto L. Nañola Jr.,&nbsp;Maria Vanessa Baria-Rodriguez","doi":"10.1007/s10452-026-10283-5","DOIUrl":"10.1007/s10452-026-10283-5","url":null,"abstract":"<div><p>Soft corals are dominant benthic components of coral reefs, yet their ecological role for fishes remains unclear, as most studies focus on their deterrence and toxicity. Recent research highlights their function as habitats. This study assessed the ecological importance of soft corals to reef fishes by examining fish abundance, richness, community assemblage, and residence times across four soft coral genera<i>: Lobophytum</i>, <i>Sarcophyton</i>, <i>Sclerophytum</i>, and <i>Isis</i>. Stationary underwater video cameras recorded fish associations in Panacalan Reef, Municipality of Anda, Pangasinan Province, Philippines. A total of 428 fishes from 36 species were documented, with <i>Halichoeres melanurus</i>, <i>Cheilinus chlorourus</i>, and <i>Pomacentrus burroughi</i> dominant across all genera. Unique dominant species were also observed; the farmerfish <i>Stegastes lacrymatus</i> and the planktivore <i>Dascyllus reticulatus</i> were most abundant in <i>Isis</i>. Fish association was highest with <i>Isis</i>, where abundance, richness, and residence time peaked. Possible reasons include its structural complexity (greater protection), a larger surface area for food availability, and an absence of strong chemical deterrents. In contrast, sarcophytid corals, particularly <i>Lobophytum</i>, had the lowest fish association, possibly due to weaker structural protection and chemical defenses that limited utilization. Species-specific behaviors, including mobility and swimming patterns, and diet, also influenced associations. Most species recorded were known soft coral associates, underscoring the functional importance of soft corals as fish habitats. Soft corals contribute to reef complexity, promoting fish diversity and abundance, and additional taxa may support even greater fish abundance and species richness. Further research on soft coral chemistry is recommended to explain variation in fish utilization among species.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147559808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Dynamics and drivers of benthic crustaceans in Lake Mývatn","authors":"Emily L. Adler,&nbsp;Adriana Kirk,&nbsp;Árni Einarsson,&nbsp;Elijah M. Burns,&nbsp;Ian S. Hart,&nbsp;K. Riley Book,&nbsp;Anthony R. Ives","doi":"10.1007/s10452-026-10282-6","DOIUrl":"10.1007/s10452-026-10282-6","url":null,"abstract":"<div><p>The community of benthic crustaceans in Lake Mývatn, Iceland, is dynamic, with different taxa showing different patterns of variation through time. Here, we analyze the dynamics of eight crustaceans collected during the summer from a central station in Mývatn over 29 years, 1995–2023. We investigated the hypothesis that fluctuations in the dominant benthic tube-forming midge, <i>Tanytarsus gracilentus</i>, drives fluctuations in benthic crustacean abundance. We also investigated two additional drivers: predatory three-spined stickleback (<i>Gasterosteus islandicus</i>) and water clarity as a measure of pelagic phytoplankton density. The analyses identified three groups of crustaceans whose populations are correlated with other members of the same group and which show similar responses to the drivers. The group of infaunal taxa fluctuated asynchronously with <i>T. gracilentus</i>, with the crustaceans reaching high abundances when <i>T. gracilentus</i> had low abundance. The bentho-pelagic taxa and <i>Eurycercus lamellatus</i> (treated as a group by itself) were not strongly influenced by <i>T. gracilentus.</i> These patterns derived from time-series data were supported by spatial data collected from a transect along a gradient of <i>T. gracilentus</i> abundance in 2024; those taxa that were present in the spatial transect showed similar responses to midge abundance. While stickleback and water clarity did have an impact on some taxa, this study largely confirms that <i>T. gracilentus</i> is the major driving force behind changes in the benthic crustacean community dynamics. The different responses of taxa to drivers and their asynchronous fluctuations increase the stability of the benthic crustacean community by ensuring that, in any given year, some taxa are relatively abundant.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10282-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147559758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Weather and catchment morphology drive thermal regime variation among subarctic ponds, and possible effects on resident Arctic charr","authors":"Grant E. Haines,&nbsp;Joseph S. Phillips,&nbsp;Elizabeth A. Mittell,&nbsp;Bjarni K. Kristjánsson,&nbsp;Camille A. Leblanc","doi":"10.1007/s10452-026-10269-3","DOIUrl":"10.1007/s10452-026-10269-3","url":null,"abstract":"<div><p>Thermal stratification, which is a common feature of lentic freshwater systems, has extensive effects on ecological interactions and ecosystem function, including processes that may determine which systems can support fish populations and affect growth, phenology, and metabolism where populations exist. Because these habitats are important for Northern freshwater fishes, improvement of our ability to forecast thermal stratification and associated ecological processes, like dissolved oxygen dynamics, could increase the accuracy of occupancy and distribution modeling, inform conservation strategies, and predict contemporary evolutionary patterns. Although thermal regimes in temperate systems are well-characterized, the irregular thermal regimes that are often present in small Arctic and subarctic lakes and ponds are more poorly understood. In a unique cave pond system near Mývatn Iceland, where conditions shaped by thermal stratification may be acting as selective agents on divergence of Arctic charr populations, we found differences in thermal stratification regimes related to the orientation of cave openings and the highly irregular catchment topography. In particular, while greater exposure to warm air temperatures can facilitate summer stratification and results in more temporally and spatially variable temperatures, exposure to wind—which is modulated on a small scale by the terrain—can facilitate mixing. These patterns caused only the more sheltered of the two ponds remain continuously isothermic. We also found that growth rates and body condition in the ponds’ Arctic charr populations (<i>Salvelinus alpinus</i>) are consistent with constraints on growth and metabolism imposed by low temperature in the cooler, continuously isothermal pond, although we cannot rule out the effects of prey limitation.Kindly confirm the metadata are identified correctly.metadata is correct, but doi for supplementary materials is not active yet. (I assume this is normal)</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10269-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147440750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Aquatic resource subsidies are more important than invasive lupine for ground-dwelling arthropod communities around Lake Mývatn","authors":"Matthew A. McCary,&nbsp;Emily J. Auerbach,&nbsp;Jamieson C. Botsch,&nbsp;Amanda R. McCormick,&nbsp;Joseph S. Phillips,&nbsp;Anthony R. Ives","doi":"10.1007/s10452-026-10279-1","DOIUrl":"10.1007/s10452-026-10279-1","url":null,"abstract":"<div><p>The effects of invasive plants on arthropod communities are highly variable, shaped not only by the resources these species introduce but also by the baseline availability of those resources in the invaded environment. In nutrient-poor ecosystems such as subarctic Iceland, nitrogen-fixing invaders may enhance litter quality and boost primary productivity, potentially benefiting arthropod communities. However, the extent of these effects likely depends on the presence of external nutrient inputs, such as aquatic resource subsidies. Interactions between plant invasions and aquatic subsidies likely have significant ecosystem consequences, yet their combined effects on arthropod communities remain poorly understood. Here, we examined how an invasive nitrogen-fixing lupine, <i>Lupinus nootkatensis</i>, and aquatic resource subsidy from the deposition of midge carcasses affected arthropod communities in subarctic heathlands. In 2013, we set up 2 × 2-m plots in native (“Heath,” <i>n</i> = 12) and lupine-invaded (“Invaded,” <i>n</i> = 12) heath vegetation and manipulated aquatic subsidies (control, inorganic KNO₃, and midge carcasses) in experimental plots for 6 years (2013 – 2018). We sampled arthropods using pitfall traps and soil-core extractions via Berlese-Tullgren funnels. In both the Heath and Invaded plots, aquatic resource subsidies altered arthropod community composition, with the KNO₃ and midge-addition plots containing more beetles and control plots containing more harvestmen and velvet mites. Increasing beetle densities were positively correlated with grass cover, whereas harvestmen and velvet mites were correlated with native heath shrubs (e.g., <i>Betula nana</i> and <i>Vaccinium uliginosum</i>). Lupine invasion had minimal effects on arthropod composition, as only the beetles were found in higher abundances in the Invaded plots. No other arthropod taxon responded to lupine invasion. These findings suggest that aquatic resource subsidies can influence arthropod communities in nutrient-poor ecosystems, but lupine invasion may be less important in determining arthropod community structure in these subarctic ecosystems.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"60 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10452-026-10279-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147440823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}