{"title":"Spatiotemporal assembly patterns of macroinvertebrate metacommunity structure in subtropical wetlands with different hydroperiods","authors":"Mateus M. Pires, Leandro Bieger, Thaíse Boelter, Cristina Stenert, Leonardo Maltchik","doi":"10.1002/iroh.202002072","DOIUrl":"10.1002/iroh.202002072","url":null,"abstract":"<p>Understanding seasonal patterns of assembly mechanisms are key to comprehending the metacommunity dynamics of organisms inhabiting temporary habitats such as wetland macroinvertebrates. However, tests of the seasonal variation in assembly mechanisms of macroinvertebrates in wetlands with differing hydroperiods are rare, especially in the Neotropical region. We tested for seasonal patterns in the metacommunity assembly mechanisms of macroinvertebrates in small subtropical highland wetlands of southern Brazil with different hydroperiods. We also tested whether patterns varied between macroinvertebrate taxa with different dispersal modes. Macroinvertebrates were sampled in 12 wetlands classified into “short,” “medium,” and “long” hydroperiods (<i>N</i> = 4 in each category) in three seasons (fall, winter, and spring) over two full hydrological cycles (from 2012 to 2014). We assessed the role of spatial and environmental variables to metacommunity structure using distance-based redundancy analysis and variation partitioning. Environmental and spatial variables explained macroinvertebrate metacommunity structure, although their relative influence markedly changed among seasons and hydroperiods. Environmental variables were important in fall and winter, whereas spatial variables predominated in spring. Different environmental variables influenced the metacommunity structure in each hydroperiod. Environmental variables influenced active-dispersing macroinvertebrates, whereas the influence of environmental and spatial variables on passive-dispersing taxa changed among seasons. We showed that the assembly mechanisms of macroinvertebrate metacommunities show a distinct temporal dynamic among wetlands with different hydroperiods. Our findings contribute to a more complete understanding of the metacommunity structure in temporary ecosystems.</p>","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":"106 5-6","pages":"239-248"},"PeriodicalIF":1.9,"publicationDate":"2021-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202002072","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43214688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research on aquatic ecosystems – freshwater and marine environments and their management","authors":"","doi":"10.1002/iroh.202172010","DOIUrl":"10.1002/iroh.202172010","url":null,"abstract":"","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":"106 2","pages":"65"},"PeriodicalIF":1.9,"publicationDate":"2021-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202172010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"51283262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lena Kretz, Katinka Koll, Carolin Seele-Dilbat, Fons van der Plas, Alexandra Weigelt, Christian Wirth
{"title":"Effects of plant species identity override diversity effects in explaining sedimentation within vegetation in a flume experiment","authors":"Lena Kretz, Katinka Koll, Carolin Seele-Dilbat, Fons van der Plas, Alexandra Weigelt, Christian Wirth","doi":"10.1002/iroh.202002077","DOIUrl":"10.1002/iroh.202002077","url":null,"abstract":"<p>During floods, sediments suspended in river water deposit on floodplains. Thus, floodplains are a key to improving river water quality. Yet, the factors that determine the amount of fine sediment that deposits on floodplains are largely unknown. Plant diversity typically increases structural diversity, whereas the vegetation structure and the structural characteristics of individual species are known to influence sedimentation. We hypothesised that species diversity, in addition to species identity, may promote sediment retention. Our study aimed to disentangle the effects of species richness and species identity, via differences in vegetation structure, on sediment retention within herbaceous vegetation patches. In a flume experiment, we investigated sedimentation on 30 vegetation patches (40 × 60 cm<sup>2</sup>). We created patches with five different species-richness levels (3, 4, 6, 8, and 11 species), each replicated six times. Species were randomly selected from 14 common floodplain species. We inundated the patches with silt- and clay-rich water and measured the amount of accumulated sediment on the vegetation and on the ground underneath it. Species richness significantly increased sedimentation underneath the vegetation (<i>R</i><sup>2</sup> = 0.17). However, including species identity effects in a structural equation model, we showed that individual species' presence largely drove these effects. <i>Alopecurus pratensis</i> had a direct negative effect on sedimentation on the vegetation, whereas <i>Bromus inermis</i> and <i>Elymus repens</i> had indirect positive effects through an increase in total biomass (<i>R</i><sup>2</sup> = 0.42). <i>Elymus repens</i> had a direct negative, and <i>Urtica dioica</i> a direct positive effect on sedimentation underneath the vegetation (<i>R</i><sup>2</sup> = 0.38). Our results indicate that selecting the most effective species, rather than as many species as possible, may have the greatest benefits for promoting sedimentation. Overall, we conclude that floodplain management that aims to increase sediment retention should alter the vegetation structure of meadows by increasing vegetation biomass.</p>","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":"107 1-2","pages":"108-116"},"PeriodicalIF":1.9,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202002077","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46659924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mirjana B. Lenhardt, Marija M. Smederevac-Lalić, Sladjana Z. Spasić, Ştefan Honţ, Marian Paraschiv, Marian I. Iani, Miroslav V. Nikčević, Peter A. Klimley, Radu Suciu
{"title":"Seasonal changes in depth position and temperature of European catfish (Silurus glanis) tracked by acoustic telemetry in the Danube River","authors":"Mirjana B. Lenhardt, Marija M. Smederevac-Lalić, Sladjana Z. Spasić, Ştefan Honţ, Marian Paraschiv, Marian I. Iani, Miroslav V. Nikčević, Peter A. Klimley, Radu Suciu","doi":"10.1002/iroh.202002049","DOIUrl":"10.1002/iroh.202002049","url":null,"abstract":"<p>The giant European catfish, <i>Silurus glanis</i> (total length = 200 cm; total weight ≈ 80 kg) was caught downstream of Iron Gate II hydropower dam (Danube River, 863 rkm) and tagged with an ultrasonic transmitter (V16TP; Vemco Ltd.) equipped with depth and temperature sensors. Changes in catfish diving behavior and temperature exposure were monitored over a period of roughly 2 years. Transmitter detections were recorded by nine autonomous receivers (VR2W, installed in 2015 between Serbia and Romania, as well as near Romanian shiplock and upstream Romanian turbines). The first signals were recorded on April 28, 2015 and the last on February 13, 2017. Altogether 59,355 and 59,175 detections of the catfish depth and water temperature were recorded, respectively. The greatest number of signals were recorded by the two receivers closest to the location where the catfish was caught, 72.3% and 27.1%, while only 0.6% of signals were recorded by other receivers. The mean catfish depth was 8.4 m, while minimum and maximum depths were 1.2 and 16.2 m. Results obtained showed that this catfish exhibited high site fidelity, while changes in depth at certain periods are possibly related to its search for prey and upstream migration during the spawning period. Hydropower dam and shiplock were obstacles on its migration upstream and telemetry studies could ensure habitat requirements and meet the development of restoration and conservation strategies for the fish resources in the future.</p>","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":"106 3-4","pages":"191-201"},"PeriodicalIF":1.9,"publicationDate":"2021-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202002049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49186477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tamara Jurca, Louise Donohue, Elaine McGoff, Saliha Y. Tunali, Kenneth Irvine
{"title":"Unravelling the effect of multiple stressors on ecological structure of littoral lake macroinvertebrates","authors":"Tamara Jurca, Louise Donohue, Elaine McGoff, Saliha Y. Tunali, Kenneth Irvine","doi":"10.1002/iroh.202002048","DOIUrl":"10.1002/iroh.202002048","url":null,"abstract":"<p>Morphological alteration of shorelines and eutrophication both affect the biological integrity of European lakes. These pressures, often acting simultaneously, are difficult to tease apart. In this study, we related the number of taxa with specific habitat preference to habitat complexity across lakes of varying nutrient state. Habitat complexity at morphologically altered shorelines was significantly lower than at unaltered sites across trophic categories. A generalised linear mixed-effects model showed decreased number of taxa with specific mesohabitat preference at morphologically simplified sites in oligotrophic and mesotrophic, but not eutrophic lakes. These results suggest: (1) an antagonistic interaction between the effect of nutrient enrichment and morphological alterations on lake littoral communities and (2) the number of macroinvertebrate habitat specialists could potentially be used to assess the effects of structural simplifications of shorelines in lakes of low to medium nutrient status. We conclude that the use of functional traits approach in aquatic ecology should foster better understanding of stressor–response relationships for combined effect of multiple stressors.</p>","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":"106 3-4","pages":"202-212"},"PeriodicalIF":1.9,"publicationDate":"2021-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202002048","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45826641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research on aquatic ecosystems – freshwater and marine environments and their management","authors":"","doi":"10.1002/iroh.202171010","DOIUrl":"10.1002/iroh.202171010","url":null,"abstract":"","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":"106 1","pages":"1"},"PeriodicalIF":1.9,"publicationDate":"2021-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202171010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48979041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of environmental factors on changing sex structure of cultivated mussels (Mytilus galloprovincialis, Lamarck, 1819) in the coastal zone of the Black Sea","authors":"Natalya Chelyadina, Natalya Pospelova, Mark Popov","doi":"10.1002/iroh.202002050","DOIUrl":"10.1002/iroh.202002050","url":null,"abstract":"<p>Anthropogenically-induced stressors such as eutrophication and pollution cause fundamental changes of environmental factors in many coastal ecosystems worldwide and may subsequently alter the sex structure of bivalve populations. Such a change of sex structure was observed in the mussel <i>Mytilus galloprovincialis</i> at the Black Sea coast of Crimea, where the sex ratio shifted toward male mussels. This pattern may be caused by the sex inversion in females, higher female mortality, and their falling off to the bottom. Experiments with cultivated mussels <i>M. galloprovincialis</i> were conducted in natural and laboratory conditions to identify the reasons for this phenomenon. The inversion of the mussel sex proceeds in one direction: from females to males. The change of sex occurs under the influence of environmental factors during the post-spawning restructuring of gonads. Such factors can be adverse hydrological and hydrochemical conditions; environmental pollution; food availability; age and size of mollusks. The sex inversion of mussels in the polluted water area was 20% higher than in the relatively clean water of the mussel farm. The higher mortality of mussel females (69%) in the polluted area as compared to the clean one (19%) was also observed. In a laboratory experiment, the mortality level of females was 34% higher than that of males. The sex ratio on the farm, 1:2.9 (♀:♂), and on the bottom under the farm, 2.6:1 (♀:♂), was found, and the predominance of females at the bottom under the farm was noted. A bias in the sex structure in one direction—from females to males—can have economic implications in aquaculture as well as ecological significance. The increasing anthropogenic impacts on natural mussel populations can cause abnormal bias of sex ratio.</p>","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":"106 3-4","pages":"183-190"},"PeriodicalIF":1.9,"publicationDate":"2021-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202002050","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41533893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ariadine H. Nunes, Tatiane Mantovano, Clemerson R. Pedroso, Gabriela N. Tanaka dos Santos, Claudia C. Bonecker
{"title":"The vicinity of reservoirs and type of environment contribute to the occurrence of an exotic cladoceran, Daphnia lumholtzi (Sars, 1885), in a Neotropical drainage basin","authors":"Ariadine H. Nunes, Tatiane Mantovano, Clemerson R. Pedroso, Gabriela N. Tanaka dos Santos, Claudia C. Bonecker","doi":"10.1002/iroh.202002069","DOIUrl":"10.1002/iroh.202002069","url":null,"abstract":"<p>Biological invasions are one of the major threats to the integrity of aquatic ecosystems worldwide. We examined the influence of reservoirs, availability of food resources, abiotic resistance, and biotic resistance on the distribution of <i>Daphnia lumholtzi</i>, a non-native cladoceran that is spreading through habitats in the upper Paraná River basin, Brazil. We sampled 48 sites distributed in four habitat types: reservoirs, lakes, tributaries, and the main river. <i>D. lumholtzi</i> densities were higher in reservoirs than in other habitat types (lentic and lotic). We found a significant correlation between a higher density of <i>D. lumholtzi</i> and the distance from reservoirs to the other sampling points. Additionally, a relationship between <i>D. lumholtzi</i> and types of environments was noted. It is known that cladocerans, including <i>D. lumholtzi</i>, have a reduced swimming ability, which makes it difficult for them to overcome currents and consequently establish or maintain large populations in lotic environments. Further research is needed to identify other factors responsible for the species' occurrence in this system and to determine the possible effects this species may have on the native community.</p>","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":"106 3-4","pages":"173-182"},"PeriodicalIF":1.9,"publicationDate":"2021-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202002069","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"51283147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of developmental time on Chaoborus-induced phenotypic plasticity","authors":"Sandra Klintworth, Eric von Elert","doi":"10.1002/iroh.202002055","DOIUrl":"10.1002/iroh.202002055","url":null,"abstract":"<p>Due to <i>Daphnia</i>'s cosmopolitan distribution and the co-occurrence with various predators, it has developed highly diverse antipredator defenses. In response to chemical cues of <i>Chaoborus</i> larvae, a major predator, neckteeth are induced in vulnerable juvenile instars of <i>Daphnia pulex</i>. As only early juvenile instars of <i>D. pulex</i> are vulnerable to predation by <i>Chaoborus</i> sp., increased developmental time extends the time span that <i>D. pulex</i> is in the vulnerable size, and thus increases the risk of being preyed upon. Here, we hypothesize that increased time spent in vulnerable instars leads to a higher degree of neckteeth formation in vulnerable <i>D. pulex</i> instars. To test this, we created a gradient of growth conditions for <i>Daphnia</i> that would cause an increase in developmental time by means of decreasing the temperature or increasing the proportion of dietary cyanobacteria in separate experiments. We determined the body size during the juvenile instars and calculated the time spent in vulnerable instars. Correlations of neckteeth induction to times spent in vulnerable instars were significant for the data set of the temperature experiment and the combined data set, but not for the data set of the cyanobacteria experiment. However, we cannot exclude that an increased bacterial degradation of the kairomone at elevated temperatures has contributed to this relationship, and dose–response curves revealed that neither the sensitivity to the kairomone nor maximum neckteeth induction in <i>D</i>. <i>pulex</i> was reduced at the elevated temperature. Our results suggest that neckteeth induction is affected by the time spent in vulnerable instars, based on the factors temperature and dietary toxic cyanobacteria, but its universal validity needs to be tested further by including other factors.</p>","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":"106 3-4","pages":"164-172"},"PeriodicalIF":1.9,"publicationDate":"2021-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202002055","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44687318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mariola Krodkiewska, Tomasz Rewicz, Klaudia Cebulska, Adrianna Koczorowska, Alicja Konopacka
{"title":"Distribution pattern of the brackish Apocorophium lacustre (Vanhoffen, 1911) (Amphipoda: Corophiidae) and the structure of the amphipod assemblages in the upper Oder River catchment","authors":"Mariola Krodkiewska, Tomasz Rewicz, Klaudia Cebulska, Adrianna Koczorowska, Alicja Konopacka","doi":"10.1002/iroh.202002062","DOIUrl":"10.1002/iroh.202002062","url":null,"abstract":"<p>\u0000 <i>Apocorophium lacustre</i> (Vanhoffen, 1911), which is a native brackish amphipod species of the North Atlantic and Baltic coasts, was recorded in the upper Oder River for the first time in 2017. Before that, only alien amphipod species had been found in this area. The aims of the study were to describe the distribution pattern of <i>A. lacustre</i> in the upper Oder River catchment, to investigate the composition and structure of the amphipod assemblages against the background of the habitat conditions and to provide a genetic identification of the species using DNA barcodes. In total, 16 sites were studied. <i>A. lacustre</i> was recorded in 14 of them. It was not found at one site in the Oder River and at one location in the lower Klodnica River. <i>A. lacustre</i> outnumbered the other amphipods in the Oder, in the mouth section of the Klodnica and at one site in the Gliwice Canal. The alien species <i>Gammarus tigrinus</i> (Sexton, 1939) was dominant in the amphipod communities at the southernmost site in the Oder River, in the Klodnica Canal, and at most sites along the Gliwice Canal. In the Klodnica River, another alien species, <i>Dikerogammarus villosus</i> (Sovinsky, 1894), was dominant in the amphipod fauna at two sites. Though the density of <i>A. lacustre</i> was high in the Oder River, it was much lower in both the canals and the Klodnica River. In our study, the depth and river velocity both contributed to the distribution of this species.</p>","PeriodicalId":54928,"journal":{"name":"International Review of Hydrobiology","volume":"106 3-4","pages":"149-163"},"PeriodicalIF":1.9,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/iroh.202002062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48933183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}