Écosystèmes

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array(3 items)
   0 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=34793, pid=124)
      originalId => protected34793 (integer)
      authors => protected'Stubbusch, A. K. M.; Peaudecerf, F. J.; Lee, K
         . S.; Paoli, L.; Schwartzman, J.; Stocker, R.; Basler,&n
         bsp;M.; Schubert, O. T.; Ackermann, M.; Magnabosco, C.; 
         D’Souza, G. G.' (254 chars)
      title => protected'Antagonism as a foraging strategy in microbial communities' (58 chars)
      journal => protected'Science' (7 chars)
      year => protected2025 (integer)
      volume => protected388 (integer)
      issue => protected'6752' (4 chars)
      startpage => protected'1214' (4 chars)
      otherpage => protected'1217' (4 chars)
      categories => protected'' (0 chars)
      description => protected'In natural habitats, nutrient availability limits bacterial growth. We disco
         vered that bacteria can overcome this limitation by acquiring nutrients by l
         ysing neighboring cells through contact-dependent antagonism. Using single-c
         ell live imaging and isotopic markers, we found that during starvation, the 
         type VI secretion system (T6SS) lysed neighboring cells and thus provided nu
         trients from lysing cells for growth. Genomic adaptations in antagonists, ch
         aracterized by a reduced metabolic gene repertoire, and the previously unexp
         lored distribution of the T6SS across bacterial taxa in natural environments
          suggest that bacterial antagonism may contribute to nutrient transfer withi
         n microbial communities in many ecosystems.' (727 chars)
      serialnumber => protected'0036-8075' (9 chars)
      doi => protected'10.1126/science.adr8286' (23 chars)
      uid => protected34793 (integer)
      _localizedUid => protected34793 (integer)modified
      _languageUid => protectedNULL
      _versionedUid => protected34793 (integer)modified
      pid => protected124 (integer)
   1 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=35074, pid=124)
      originalId => protected35074 (integer)
      authors => protected'Baeyens, W.; Gao, Y.; Janssen, D. J.; Bowie, A.&nbs
         p;R.; Zhou, C.; Fan, G.' (109 chars)
      title => protected'Prevalence of multi-micronutrient limitation of phytoplankton growth in the 
         Southern Ocean' (90 chars)
      journal => protected'One Earth' (9 chars)
      year => protected2025 (integer)
      volume => protected8 (integer)
      issue => protected'9' (1 chars)
      startpage => protected'101354 (10 pp.)' (15 chars)
      otherpage => protected'' (0 chars)
      categories => protected'' (0 chars)
      description => protected'Ongoing global warming caused by a steady increase in carbon dioxide in the 
         atmosphere urgently needs to be mitigated. This is possible if phytoplankton
          biomass is increased in the ocean, as this will remove additional atmospher
         ic CO<sub>2</sub>. In the Southern Ocean, Fe is a well-known growth-limiting
          element, but the role of the other micronutrients remains very unclear. Our
          aim is to describe the evolution of each nutrient in the Southern Ocean thr
         oughout the year and to identify nutrients that limit phytoplankton growth. 
         Therefore, we created a model that calculates nutrient consumption rates and
          available nutrient pools, fueled by deep winter mixing and diapycnal supply
         . Annual consumed nutrient amounts are smaller than their labile dissolved p
         ools, but this is not true for limiting elements Fe and Co (from the sub-Ant
         arctic zone [SAZ] to the Antarctic zone [AZ]) and Zn and Si (only in the SAZ
         ). Since we found several limiting elements, fertilization with multiple nut
         rients would be required to promote large-scale carbon capture.' (1051 chars)
      serialnumber => protected'2590-3330' (9 chars)
      doi => protected'10.1016/j.oneear.2025.101354' (28 chars)
      uid => protected35074 (integer)
      _localizedUid => protected35074 (integer)modified
      _languageUid => protectedNULL
      _versionedUid => protected35074 (integer)modified
      pid => protected124 (integer)
   2 => Snowflake\Publications\Domain\Model\Publicationprototypepersistent entity (uid=35142, pid=124)
      originalId => protected35142 (integer)
      authors => protected'Oester,&nbsp;R.; Keck,&nbsp;F.; Moretti,&nbsp;M.&nbsp;S.; Altermatt,&nbsp;F.
         ; Bruder,&nbsp;A.; Ferreira,&nbsp;V.' (112 chars)
      title => protected'A global synthesis on land-cover changes in watersheds shaping freshwater de
         trital food webs' (92 chars)
      journal => protected'Global Change Biology' (21 chars)
      year => protected2025 (integer)
      volume => protected31 (integer)
      issue => protected'8' (1 chars)
      startpage => protected'e70380 (21 pp.)' (15 chars)
      otherpage => protected'' (0 chars)
      categories => protected'allochthonous matter processing; aquatic-terrestrial linkages; decomposers; 
         decomposition; deforestation; detritivores; detritus; meta-analysis; shredde
         rs; stream biodiversity' (175 chars)
      description => protected'Anthropogenic land-cover changes are among the most pressing global threats 
         to both aquatic and terrestrial ecosystems, jeopardizing biodiversity and th
         e critical connections between these systems. Resource flows and trophic int
         eractions intricately link aquatic and terrestrial ecosystems, with terrestr
         ial-derived detritus playing a fundamental role in supporting aquatic food w
         ebs. These detrital inputs form essential cross-ecosystem linkages, underpin
         ning key ecological processes and providing vital resources for aquatic comm
         unities. Yet, little research has focused on how land-cover changes cascade 
         across this linkage. To better understand how land-cover changes in the wate
         rshed influence freshwater detrital food webs, we conducted a meta-analysis 
         of field studies reporting the effects of vegetation changes on freshwater d
         etrital consumers and organic matter decomposition. The results from 144 stu
         dies, reporting 1235 comparisons, showed that, overall, land-cover changes i
         n the watershed vegetation, especially through harvest and land-use conversi
         on, have negative effects on aquatic biodiversity and ecosystem processes. T
         hese vegetation changes reduced diversity, abundance, and biomass across mul
         tiple trophic levels in freshwater detrital food webs. Studies examining mul
         tiple organism groups most often observed negative responses across multiple
          trophic levels, suggesting that these land-cover changes negatively affecte
         d multiple detrital food-web components simultaneously. Our results also sho
         w that outcomes of restoration of watershed vegetation were context-dependen
         t, and no clear trend of improvement was visible. Therefore, conservation of
          natural riparian and catchment vegetation is key to maintaining freshwater 
         ecosystem processes and aquatic biodiversity worldwide, and more efficient a
         nd evidence-based restoration measures are urgently needed. As our global sy
         nthesis shows that direct human-induced alterations of vegetation in watersh
         eds have significant neg...' (2177 chars)
      serialnumber => protected'1354-1013' (9 chars)
      doi => protected'10.1111/gcb.70380' (17 chars)
      uid => protected35142 (integer)
      _localizedUid => protected35142 (integer)modified
      _languageUid => protectedNULL
      _versionedUid => protected35142 (integer)modified
      pid => protected124 (integer)