Klimawandel und aquatische Biodiversität

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   0 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=35293, pid=124)
      originalId => protected35293 (integer)
      authors => protected'Khaliq, I.; Narwani, A.; Vorburger, C.; Schuwirth, N.' (73 chars)
      title => protected'Documenting climate-driven changes in Swiss macroinvertebrate communities wi
         th a 'temperature index': an evaluation of different sources of thermal pref
         erence data' (163 chars)
      journal => protected'Ecological Indicators' (21 chars)
      year => protected2025 (integer)
      volume => protected178 (integer)
      issue => protected'' (0 chars)
      startpage => protected'114129 (10 pp.)' (15 chars)
      otherpage => protected'' (0 chars)
      categories => protected'' (0 chars)
      description => protected'Freshwater ecosystems support a disproportionate share of global biodiversit
         y. Freshwater macroinvertebrates are frequently used as bioindicators to ass
         ess the ecological status of streams and rivers. However, ongoing climate ch
         ange is altering the compositions of these communities, highlighting the nee
         d for tools to detect climate-related shifts. We propose and evaluate an eco
         logical index based on the SPEcies At Risk (SPEAR) approach to quantify the 
         proportion of species that are sensitive to higher temperatures within Ephem
         eroptera, Plecoptera and Trichoptera communities. We calculated this index u
         sing six different data sources for thermal preferences: experimentally meas
         ured thermal tolerances, the mean temperature from global occurrence records
          (GBIF), preferred temperatures obtained from multivariate species distribut
         ion models (SDM), the central temperature tendency derived from Swiss monito
         ring data according to the KLIWA approach, and two different sources of expe
         rt knowledge from a curated trait database. For all sources, we designated t
         he species comprising the lower 50th percentile of thermal preference values
          as sensitive and the upper half as insensitive to warmer temperatures. To e
         valuate the performance of the six versions of this SPEAR<sub>temperature</s
         ub> on a geographic scale, we leveraged data from two Swiss wide monitoring 
         programs including samples from 570 sites for the period 2010–2022 and fro
         m 183 sites for 2018–2023. While all six versions recapitulated a declinin
         g proportion of sensitive species with increasing water temperature, the rel
         ation was strongest when using the KLIWA-based thermal preference classifica
         tion. On average across all sites, we observed a significant decline of the 
         SPEAR<sub>temperature</sub> index over the 2010–2022 period, independent o
         f the source for the classification. This is consistent with a signal of war
         ming-related community turnover, or ‘thermophilisation’. These results i
         ndicate that the index i...' (2195 chars)
      serialnumber => protected'1470-160X' (9 chars)
      doi => protected'10.1016/j.ecolind.2025.114129' (29 chars)
      uid => protected35293 (integer)
      _localizedUid => protected35293 (integer)modified
      _languageUid => protectedNULL
      _versionedUid => protected35293 (integer)modified
      pid => protected124 (integer)
   1 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=34928, pid=124)
      originalId => protected34928 (integer)
      authors => protected'Hermann,&nbsp;M.; Amekor,&nbsp;M.&nbsp;K.; Contrucci,&nbsp;E.; Evarita,&nbsp
         ;A.&nbsp;M.; Peeters,&nbsp;E.&nbsp;T.&nbsp;H.&nbsp;M.; Van den Brink,&nbsp;P
         .&nbsp;J.' (161 chars)
      title => protected'Multiple stressor effects of a neonicotinoid, heatwaves, and elevated temper
         atures on aquatic insect emergence' (110 chars)
      journal => protected'Environmental Science and Technology' (36 chars)
      year => protected2025 (integer)
      volume => protected59 (integer)
      issue => protected'28' (2 chars)
      startpage => protected'14226' (5 chars)
      otherpage => protected'14238' (5 chars)
      categories => protected'imidacloprid; climate change; weather extremes; combined temperature and che
         mical effects; insect life cycle; insect communities; mesocosm; freshwater e
         cosystem' (160 chars)
      description => protected'Intensive agricultural practices, including neonicotinoid insecticides, and 
         climate change are two potential drivers of global insect decline, contribut
         ing to biodiversity loss. However, ecologically realistic field experiments 
         investigating these multiple stressor effects on emerging aquatic insects ar
         e scarce. To empirically test whether exposure to imidacloprid (1, 10 μg/L)
          and two different climate change scenarios (i) elevated temperatures (+4 °
         C vs. ambient temperatures) and (ii) reoccurring heatwaves (+0 to 8 °C) may
          cause a decline in insect emergence, we conducted an outdoor mesocosm study
         . Aquatic insect communities were exposed to single and combined stressors, 
         while emergence was monitored during a 3-month period. We report significant
          losses in insect biomass and abundance under single and combined treatments
         . The high imidacloprid treatment and elevated temperatures combined caused 
         a significant 47% decline in total insect biomass across the insect orders D
         iptera, Ephemeroptera, Coleoptera, Hymenoptera, Hemiptera, Odonata, and Tric
         hoptera. Community structure and population dynamics were significantly affe
         cted, with Diptera and Ephemeroptera being most sensitive to the high and bo
         th imidacloprid treatments, respectively. Diptera dominated but was signific
         antly reduced by the high imidacloprid and heatwave combination. Temperature
         -enhanced imidacloprid toxicity and the significant threat these stressors p
         ose to aquatic insect communities highlight the need for effective climate c
         hange mitigation strategies to conserve aquatic insect biodiversity.' (1588 chars)
      serialnumber => protected'0013-936X' (9 chars)
      doi => protected'10.1021/acs.est.5c01498' (23 chars)
      uid => protected34928 (integer)
      _localizedUid => protected34928 (integer)modified
      _languageUid => protectedNULL
      _versionedUid => protected34928 (integer)modified
      pid => protected124 (integer)
   2 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=34571, pid=124)
      originalId => protected34571 (integer)
      authors => protected'Hermann,&nbsp;M.; Schuijt,&nbsp;L.; Albini,&nbsp;D.; Amekor,&nbsp;M.&nbsp;K.
         ; Belgers,&nbsp;D.; Boerwinkel,&nbsp;M.&nbsp;C.; Evarita,&nbsp;A.&nbsp;M.; H
         uang,&nbsp;A.; Jackson,&nbsp;M.&nbsp;C.; Peeters,&nbsp;E.&nbsp;T.&nbsp;H.&nb
         sp;M.; Roessink,&nbsp;I.; van Smeden,&nbsp;J.; Van den Brink,&nbsp;P.&nbsp;J
         .' (305 chars)
      title => protected'Heatwaves, elevated temperature, and insecticide-induced effects at differen
         t trophic levels of a freshwater ecosystem' (118 chars)
      journal => protected'Environmental Research' (22 chars)
      year => protected2025 (integer)
      volume => protected277 (integer)
      issue => protected'' (0 chars)
      startpage => protected'121566 (16 pp.)' (15 chars)
      otherpage => protected'' (0 chars)
      categories => protected'climate change; neonicotinoids; imidacloprid; multiple stressors; aquatic ec
         otoxicology; aquatic mesocosms' (106 chars)
      description => protected'Heatwaves and increasing average temperatures associated with climate change
          pose severe stress on nature, including freshwater ecosystems. As these the
         rmal stressors do not act in isolation over temporal or spatial scales, inte
         ractions with other stressors, like pesticides, may lead to unpredictable co
         mbined effects. Empirical studies investigating multiple stressor effects ac
         ross different trophic levels are scarce and often lack environmental realis
         m. Here, we performed a multiple stressor experiment using outdoor freshwate
         r mesocosms and realistic pond assemblages including microbes, phytoplankton
         , macrophytes, and invertebrates. The effects of the pesticide imidacloprid 
         at three dosings (0, 1, 10 μg/L) were examined in combination with three te
         mperature scenarios comprising natural ambient, elevated temperatures (+4 °
         C), and repeated heatwaves (+8 °C). Our results reveal fast imidacloprid di
         ssipation for all temperature treatments with the lowest average dissipation
          half-lives (DT<sub>50</sub>: 6 days) in the heatwave treatment. Imidaclopri
         d induced a series of significant effects on the macroinvertebrate community
          at 10 μg/L across the temperature treatments. Significant declines in abun
         dance appeared throughout the experiment for the most sensitive taxa Cloeon 
         dipterum, Caenis sp., Chironomini, and Dero sp., whereas significant imidacl
         oprid effects on Tanytarsini, Chironomus, and Gammarus pulex occurred only a
         fter each dosing. Only Zygoptera showed an imidacloprid-related increase in 
         abundance, whereas significantly adverse time-cumulative effects on abundanc
         e occurred for Asellus aquaticus. The zooplankton community showed imidaclop
         rid tolerance (10 μg/L) with increasing abundances of Chydorus sphaericus, 
         Acroperus harpae, and Ascomorpha. Heatwaves induced significantly melioratin
         g effects on Dero sp. and adverse effects on Caenis sp., Tanytarsini, G. pul
         ex, and A. harpae. The macroinvertebrate community demonstrated faster post-
         exposure recovery dynami...' (2304 chars)
      serialnumber => protected'0013-9351' (9 chars)
      doi => protected'10.1016/j.envres.2025.121566' (28 chars)
      uid => protected34571 (integer)
      _localizedUid => protected34571 (integer)modified
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      _versionedUid => protected34571 (integer)modified
      pid => protected124 (integer)
   3 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=33782, pid=124)
      originalId => protected33782 (integer)
      authors => protected'Polazzo,&nbsp;F.; Hermann,&nbsp;M.; Crettaz-Minaglia,&nbsp;M.; Rico,&nbsp;A.' (76 chars)
      title => protected'Recurrent heatwaves slow down the recovery of a phytoplankton community' (71 chars)
      journal => protected'Ecology and Evolution' (21 chars)
      year => protected2024 (integer)
      volume => protected14 (integer)
      issue => protected'12' (2 chars)
      startpage => protected'e70539 (14 pp.)' (15 chars)
      otherpage => protected'' (0 chars)
      categories => protected'community rescue; critical slow down; ecological stability; heatwaves; resil
         ience' (81 chars)
      description => protected'Heatwaves (HWs) are predicted to increase in frequency and severity due to c
         limate change. Yet, there is limited information about how ecological resili
         ence of aquatic communities is going to be impacted by recurrent HWs. Here, 
         we used data from an outdoor freshwater mesocosm experiment where a semi-nat
         ural phytoplankton community was exposed to three subsequent HWs. The data w
         ere used to test two different hypotheses regarding community and ecosystem 
         responses to recurrent perturbations: critical slowing down and rescue. Slow
         ing down would determine a reduction in resilience and eventually a communit
         y or ecosystem collapse, whereas rescue would increase community or ecosyste
         m resilience and maintain stable community and ecosystem properties. The res
         ults of our experiment showed evidence for critical slowing down, but not fo
         r community or ecosystem rescue. The recovery capacity of phytoplankton biom
         ass and dissolved oxygen gradually decreased after the first two HWs and sha
         rply declined after the third one. The decline in these community and ecosys
         tem properties were linked to a significant compositional turnover in the ph
         ytoplankton community. Although we did not find evidence for a transition in
         to an alternative stable state, our results provide insights into how the ov
         erall resilience of a phytoplankton community may decline in the presence of
          recurrent heatwaves. Thus, we highlight the importance of monitoring the sl
         owing down of recovery of aquatic communities experiencing repeated exposure
          to severe perturbations.' (1545 chars)
      serialnumber => protected'2045-7758' (9 chars)
      doi => protected'10.1002/ece3.70539' (18 chars)
      uid => protected33782 (integer)
      _localizedUid => protected33782 (integer)modified
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      _versionedUid => protected33782 (integer)modified
      pid => protected124 (integer)
   4 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=33405, pid=124)
      originalId => protected33405 (integer)
      authors => protected'Süess,&nbsp;S.; Habersetzer,&nbsp;L.; Elings,&nbsp;J.; Bosnjakovic,&nbsp;M
         .; Christen,&nbsp;N.; Lange,&nbsp;K.; Selz,&nbsp;O.; Yazdanfar,&nbsp;A.; Bak
         toft,&nbsp;H.; Øystein Gjelland,&nbsp;K.; Reubens,&nbsp;J.; Silva,&nbsp;L.&
         nbsp;G.&nbsp;M.; Brodersen,&nbsp;J.' (263 chars)
      title => protected'Fischwanderung in Zeiten des Klimawandels. Akustische Telemetrie zur Erforsc
         hung der Bewegungsmuster Schweizer Flussfische' (122 chars)
      journal => protected'Aqua & Gas' (10 chars)
      year => protected2024 (integer)
      volume => protected104 (integer)
      issue => protected'10' (2 chars)
      startpage => protected'66' (2 chars)
      otherpage => protected'71' (2 chars)
      categories => protected'' (0 chars)
      description => protected'Warum, wohin, wie weit und wann wandern die Fische in unseren Flüssen? Wie 
         wirkt sich der Klimawandel mit extremen Wetterlagen, steigenden Wassertemper
         aturen, veränderten Abflüssen und Niedrig- oder Hochwasser auf Bewegungsmu
         ster aus? Inwieweit beeinträchtigen künstliche Barrieren die Fischbewegung
         en und zudem die genetische Struktur der Arten? Diesen Fragen geht ein Forsc
         herteam der Eawag und ETH nach, indem es Bewegungen diverser Fischarten übe
         r mehrere Jahre im Rhein-Aare-Flussnetz verfolgt.' (505 chars)
      serialnumber => protected'2235-5197' (9 chars)
      doi => protected'' (0 chars)
      uid => protected33405 (integer)
      _localizedUid => protected33405 (integer)modified
      _languageUid => protectedNULL
      _versionedUid => protected33405 (integer)modified
      pid => protected124 (integer)
   5 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=33406, pid=124)
      originalId => protected33406 (integer)
      authors => protected'Vorburger,&nbsp;C.; Khaliq,&nbsp;I.; Chollet Ramampiandra,&nbsp;E.; Narwani,
         &nbsp;A.; Schuwirth,&nbsp;N.' (104 chars)
      title => protected'Biologische Gewässerbeurteilung im Klimawandel' (47 chars)
      journal => protected'Aqua & Gas' (10 chars)
      year => protected2024 (integer)
      volume => protected104 (integer)
      issue => protected'10' (2 chars)
      startpage => protected'60' (2 chars)
      otherpage => protected'65' (2 chars)
      categories => protected'' (0 chars)
      description => protected'Als Folge des Klimawandels etablieren sich immer mehr wärmeliebende Arten i
         n Schweizer Gewässern. Da wirbellose Kleinlebewesen als Bioindikatoren für
          die Qualität von Fliessgewässern dienen, könnte diese Entwicklung die bi
         ologische Gewässerbeurteilung verfälschen. Simulationen zeigen, dass die V
         ielfalt der Wirbellosen tatsächlich zunehmen wird, jedoch auf Kosten kälte
         liebender Arten. Soweit sich das beurteilen lässt, sind die verwendeten Ind
         izes aber robust genug, um ihre Aussagekraft zur Gewässerqualität für die
          nächsten Jahrzehnte zu behalten.' (566 chars)
      serialnumber => protected'2235-5197' (9 chars)
      doi => protected'' (0 chars)
      uid => protected33406 (integer)
      _localizedUid => protected33406 (integer)modified
      _languageUid => protectedNULL
      _versionedUid => protected33406 (integer)modified
      pid => protected124 (integer)
   6 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=33026, pid=124)
      originalId => protected33026 (integer)
      authors => protected'Hermann,&nbsp;M.; Polazzo,&nbsp;F.; Cherta,&nbsp;L.; Crettaz-Minaglia,&nbsp;
         M.; García-Astillero,&nbsp;A.; Peeters,&nbsp;E.&nbsp;T.&nbsp;H.&nbsp;M.; Ri
         co,&nbsp;A.; Van den Brink,&nbsp;P.&nbsp;J.' (195 chars)
      title => protected'Combined stress of an insecticide and heatwaves or elevated temperature indu
         ce community and food web effects in a Mediterranean freshwater ecosystem' (149 chars)
      journal => protected'Water Research' (14 chars)
      year => protected2024 (integer)
      volume => protected260 (integer)
      issue => protected'' (0 chars)
      startpage => protected'121903 (15 pp.)' (15 chars)
      otherpage => protected'' (0 chars)
      categories => protected'climate change; neonicotinoids; multiple stressors; freshwater communities; 
         aquatic mesocosms; structural equation modelling' (124 chars)
      description => protected'Ongoing global climate change will shift nature towards Anthropocene's unpre
         cedented conditions by increasing average temperatures and the frequency and
          severity of extreme events, such as heatwaves. While such climatic changes 
         pose an increased threat for freshwater ecosystems, other stressors like pes
         ticides may interact with warming and lead to unpredictable effects. Studies
          that examine the underpinned mechanisms of multiple stressor effects are sc
         arce and often lack environmental realism. Here, we conducted a multiple str
         essors experiment using outdoor freshwater mesocosms with natural assemblage
         s of macroinvertebrates, zooplankton, phytoplankton, macrophytes, and microb
         es. The effects of the neonicotinoid insecticide imidacloprid (1 µg/L) were
          investigated in combination with three temperature scenarios representing a
         mbient, elevated temperatures (+4 °C), and heatwaves (+0 to 8 °C), the lat
         ter two having similar energy input. We found similar imidacloprid dissipati
         on patterns for all temperature treatments with lowest average dissipation h
         alf-lives under both warming scenarios (DT<sub>50</sub>: 3 days) and highest
          under ambient temperatures (DT<sub>50</sub>: 4 days) throughout the experim
         ent. Amongst all communities, only the zooplankton community was significant
         ly affected by the combined treatments. This community demonstrated low chem
         ical sensitivity with lagged and significant negative imidacloprid effects o
         nly for cyclopoids. Heatwaves caused early and long-lasting significant effe
         cts on the zooplankton community as compared to elevated temperatures, with 
         <em>Polyarthra, Daphnia longispina</em>, Lecanidae, and cyclopoids being the
          most negatively affected taxa, whereas <em>Ceriodaphnia</em> and nauplii sh
         owed positive responses to temperature. Community recovery from imidacloprid
          stress was slower under heatwaves, suggesting temperature-enhanced toxicity
         . Finally, microbial and macrofauna litter degradation were significantly en
         hanced by temperature, w...' (2385 chars)
      serialnumber => protected'0043-1354' (9 chars)
      doi => protected'10.1016/j.watres.2024.121903' (28 chars)
      uid => protected33026 (integer)
      _localizedUid => protected33026 (integer)modified
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      _versionedUid => protected33026 (integer)modified
      pid => protected124 (integer)
   7 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=32476, pid=124)
      originalId => protected32476 (integer)
      authors => protected'Khaliq,&nbsp;I.; Chollet Ramampiandra,&nbsp;E.; Vorburger,&nbsp;C.; Narwani,
         &nbsp;A.; Schuwirth,&nbsp;N.' (104 chars)
      title => protected'The effect of water temperature changes on biological water quality assessme
         nt' (78 chars)
      journal => protected'Ecological Indicators' (21 chars)
      year => protected2024 (integer)
      volume => protected159 (integer)
      issue => protected'' (0 chars)
      startpage => protected'111652 (10 pp.)' (15 chars)
      otherpage => protected'' (0 chars)
      categories => protected'biological indices; macroinvertebrate species richness; IBCH index; SPEARpes
         cticides index; climate change; water quality assessment' (132 chars)
      description => protected'Increasing temperatures caused by anthropogenic climate change are leading t
         o changes in the composition of local communities across biomes. This has im
         plications for ecological assessment methods that rely on macroinvertebrates
          as bioindicators of water quality. To investigate the influence of changing
          water temperature on these assessment methods, we analysed macroinvertebrat
         e data from Swiss national monitoring programs. We used a species distributi
         on model to simulate temperature change effects on macroinvertebrate communi
         ties and estimated the resulting changes on three biological indices commonl
         y used in Switzerland, namely the species richness of Ephemeroptera, Plecopt
         era and Trichoptera (EPT), the Swiss biological (IBCH) index along with its 
         components, as well as the species at risk pesticides (SPEAR<sub>pesticides<
         /sub>) index. While results vary by temperature scenario and index, our mode
         l results for the most realistic water temperature increase scenario of + 
         2 °C across most sites in Switzerland suggest no, or only a minor, influen
         ce of temperature (not accounting for other hydrological changes). Our model
          projection predicted only a small increase in the probability of occurrence
          for 70 % of the studied families. The sensitivity to temperature as captur
         ed in our model is generally not very high and varies among the biological i
         ndices: on average across all sites, a + 2 °C increase in temperature re
         sulted in a 7 % increase in EPT species richness, a 4 % increase in the IB
         CH index, and a less than 1 % increase in the SPEAR<sub>pesticides</sub> in
         dex. Our study suggests the robustness of these biological indices to modera
         te warming and points towards the usefulness of these biological indices for
          the next few decades as tools for water quality assessment. Despite some li
         mitations of statistical species distribution models (e.g., not accounting f
         or dispersal limitation or biotic interactions, predictive performance varyi
         ng by taxon), the study ...' (2280 chars)
      serialnumber => protected'1470-160X' (9 chars)
      doi => protected'10.1016/j.ecolind.2024.111652' (29 chars)
      uid => protected32476 (integer)
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