Carolina Mansilla Ferro, Patricia E. Garcia, Mariana Reissig, María C. Diéguez
我们研究了生物气候变量（降水、温度和植被）对巴塔哥尼亚安第斯山脉北部温带浅湖的物理化学特性、碳（C）和营养物质动态的影响。研究了位于安第斯巴塔哥尼亚生物气候梯度沿线的四个浅水湖泊（平均水深 15 米），其特点是自西向东降水量减少、温度升高、植被类型发生变化。对物理化学变量、总氮和总磷（TN 和 TP）以及颗粒和溶解有机物（POM 和 DOM）进行了分析。通过多变量分析，评估了环境变量对湖水化学的影响，并确定了与湖泊 DOM 池空间和时间差异相关的主要因素。降水量的空间和季节性减少以及气候变暖反映了湖泊水文连通性的降低。连通性降低导致电导率、pH 值、碱度、溶解有机碳 (DOC) 和 TN 浓度升高。这种条件有利于湖泊 DOM 芳香度、腐殖质含量和分子量/大小的损失，并增加了降解信号和生物产生的 DOM 部分。沿安第斯-巴塔哥尼亚梯度，湖泊对气候变量变化的反应是一致的。在梯度尺度上，各湖泊在水化学和溶解氧组成方面的差异与降水量、温度和流域植被的变化有关，这可能有助于深入了解预测气候趋势下的碳和水化学轨迹。我们的研究结果表明，干旱和气候变暖的趋势可能导致水文连通性降低，湖泊的陆地 DOM 通量减少，同时内部降解过程增加。
{"title":"Bioclimatic influence on water chemistry and dissolved organic matter in shallow temperate lakes of Andean Patagonia: A gradient approach","authors":"Carolina Mansilla Ferro, Patricia E. Garcia, Mariana Reissig, María C. Diéguez","doi":"10.1111/fwb.14241","DOIUrl":"10.1111/fwb.14241","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140202612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana Pereira, Albano Figueiredo, Nuno Coimbra, Manuel A. S. Graça, Verónica Ferreira
利益冲突声明作者无利益冲突声明。
{"title":"Effects of Acacia invasion on water quality, litterfall, aquatic decomposers, and leaf litter decomposition in streams","authors":"Ana Pereira, Albano Figueiredo, Nuno Coimbra, Manuel A. S. Graça, Verónica Ferreira","doi":"10.1111/fwb.14240","DOIUrl":"10.1111/fwb.14240","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140171252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Issue Information - Cover and Ed Board","authors":"","doi":"10.1111/fwb.14120","DOIUrl":"https://doi.org/10.1111/fwb.14120","url":null,"abstract":"","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.14120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140142004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Katalin Patonai, Anett Endrédi, Zsófia Horváth, Péter Borza, Károly Pálffy, Péter Dobosy, Csaba F. Vad
入侵物种是淡水生态系统结构和功能的主要威胁，但人们往往对它们在被入侵生境中的功能作用知之甚少，尤其是对杂食性动物。它们对被入侵生态系统的影响可能在很大程度上取决于当地的物种组成，但迄今为止几乎没有证据证明这一点。我们进行了一个中观宇宙实验，以检验源于蓬托-里海的广泛杂食性糠虾（Limnomysis benedeni）自上而下的影响是否与被入侵群落的群落组成有关。我们将不同初始组成的浮游动物群落（以栉水母或桡足类为主）与 L. benedeni 的存在/不存在进行了杂交。我们发现，L. benedeni 的影响取决于群落组成，只有在以 Cladocera 为主的群落中，L. benedeni 才会抑制浮游动物的生物量。这可能与捕食者躲避能力的差异有关，特别是与桡足类相比，优势水蚤类在躲避 L. benedeni 的捕食时效率较低。虽然这些大型浮游食草动物的消失可能会连带影响初级生产者的水平，但我们并没有发现明确的证据，因为在为期两周的实验过程中，浮游植物的生物量大多没有受到影响。基于我们的研究结果，我们呼吁进一步开展原理验证实验，并结合实地观察，以便更好地预测入侵者对不同地方群落的影响。
{"title":"Trophic impact of an invasive mysid shrimp depends on zooplankton community composition: A mesocosm experiment","authors":"Katalin Patonai, Anett Endrédi, Zsófia Horváth, Péter Borza, Károly Pálffy, Péter Dobosy, Csaba F. Vad","doi":"10.1111/fwb.14233","DOIUrl":"10.1111/fwb.14233","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.14233","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Long-term droughts change the hatching patterns of zooplankton resting eggs from permanent and temporary lakes","authors":"Anderson L. Vargas, Thamires Brazil, Jayme M. Santangelo, Reinaldo L. Bozelli","doi":"10.1111/fwb.14234","DOIUrl":"10.1111/fwb.14234","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140126744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Handoko Wahjudi, William D. Bovill, Andrew J. Brooks, Barbara J. Downes
很少有研究考虑到溪流中底栖昆虫产卵的时空变化。然而，这种变化会对后代的数量和分布以及生命周期的后续阶段产生持久影响。对于需要特定产卵栖息地的物种，如突出水面的岩石（突岩，ER），产卵栖息地的密度会影响某些物种的底栖卵甚至幼虫的密度。对这些物种而言，水位的变化会改变礁石的时空分布，并影响卵的密度，甚至可能影响幼虫的密度。在水坝下方，水流状态的改变可能会改变ER的时空分布。在这项研究中，我们测试了河流调节是否会改变产卵栖息地的可用性，以及与未调节河流相比是否会改变产卵的物候学。在澳大利亚东南部两条受管制河流（Murrumbidgee河、Tumut河）和三条未受管制河流（Goobarragandra河、Goodradigbee河、Micalong河）的多个地点，我们在3年时间里（2019-2021年）按季节调查了五种笛鲷科（Hydrobiosidae）ER和卵块的密度。我们还在两个季节使用灯光诱捕器采集了成虫样本。在春季和夏季，两条受管制河流的大流量淹没了所有岩石，而在秋季和冬季，小流量泄洪使所有（穆伦比奇河）或大部分（图穆特河）地点的岩石搁浅在水线以上。在墨伦比奇河，尽管成虫捕获量相对较大，但在任何日期都没有观察到ER或卵块。在图穆特河（Tumut River）上，一个地点两次观察到低密度的ER和卵块，都发生在无管制河流产卵量较低的季节（冬季和秋季）。在未受管制的河流中，ER 和卵块（5 种，4 属）出现在所有地点，但冬季的密度低于其他季节。在产卵高峰期，每个地点的卵块密度与ER密度关系不大。2019 年夏季，两条无管制河流中的 ER 被成片的藻类和沉积物覆盖，似乎阻碍了产卵，因为此时未观察到卵块。在管制河流中，季节性水流会淹没（夏季、秋季）或搁浅（冬季、春季）全部或大部分 ER，从而阻碍产卵。与此相反，在未受管制的河流中，ER全年都可以产卵，除了当ER被藻类和沉积物覆盖时，产卵全年都会发生。在不同季节，当地的卵块密度可能受限于怀孕雌鱼的数量，而不是ER的数量，这与之前的研究有所不同。确定繁殖障碍对于了解自然和改变系统中种群数量的变化至关重要。我们在水坝下游观察到的产卵失败现象提出了一个新的假设，即为什么一些昆虫物种没有出现在因灌溉而调节水流的河道中。成片的藻类可能同样阻碍了低流量条件下河流的繁殖，但这一假设仍未得到验证。
{"title":"Seasonal differences in amounts of oviposition habitat and egg-laying by caddisflies in rivers with regulated versus unregulated flows","authors":"Handoko Wahjudi, William D. Bovill, Andrew J. Brooks, Barbara J. Downes","doi":"10.1111/fwb.14236","DOIUrl":"10.1111/fwb.14236","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.14236","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140098620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluating effectiveness of restoration to address current stressors to riverine fish","authors":"Jane S. Rogosch, Hadley I. A. Boehm, Ralph W. Tingley III, Kiah D. Wright, Elisabeth B. Webb, Craig P. Paukert","doi":"10.1111/fwb.14232","DOIUrl":"10.1111/fwb.14232","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.14232","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140053834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Leighton King, Colin Courtney-Mustaphi, Maria Cuenca-Cambronero, Giulia Wienhues, Nare Ngoepe, Moritz Muschick, Yunuen Temoltzin-Loranca, Hendrik Vogel, Martin Grosjean, Willy Tinner, Andrew Cohen, Mary Kishe, Oliver Heiri, Ole Seehausen, Blake Matthews
保存在湖泊沉积物中的无脊椎动物遗骸组合揭示了群落组成和环境条件的时间变化。然而，大型热带湖泊的记录却很少。维多利亚湖是最大的热带湖泊，其水位、生物地球化学和鱼类群落组成在过去约 17,000 卡年（BP）的历史中发生了动态变化。为了量化维多利亚湖无脊椎动物群从晚更新世到全新世的变化，我们研究了从公元前约 13,700 卡年至今的沉积物岩芯（水深 37 米）中鳞翅目（Cladocera）和双翅目（Chironomidae 和 Chaoboridae）幼虫的壳质残骸。我们发现，在这段湖泊历史中，无脊椎动物的组合经历了四个主要阶段。首先，摇蚊科（Chironomidae）和翘嘴蜓科（Chaoboridae）在晚更新世湖泊淹没的最初阶段以较低的丰度出现，当时桡足类（Cladocera）明显缺乏。其次，在全新世中期，摇蚊和摇蚊的丰度有所增加，这与全新世非洲湿润期末期硅藻的大量生产相吻合。第三，从公元前约 4,700 卡年开始，随着混合机制的变化，无脊椎动物群中出现了以沿岸纤毛虫为主的 Alona 属，并一直持续到全新世晚期至今。第四，Cydorus 和 Bosmina longirostris 的出现标志着在约 1,350 cal yr BP 建立了一个丰富的革囊动物群。随后，该集合体逐渐转向以 B. longirostris（一种浮游动物）为主。所观察到的无脊椎动物群的一些变化与东非气候条件和硅藻生产力的变化同时发生，而维多利亚湖以前曾有过这样的记录。维多利亚湖沉积无脊椎动物群落的这一多年期记录，阐明了这些群落在生态系统动态现代史的大部分时间里的一些发展情况。
{"title":"Temporal dynamics of invertebrate community assembly in Lake Victoria since the late Pleistocene based on chitinous remains","authors":"Leighton King, Colin Courtney-Mustaphi, Maria Cuenca-Cambronero, Giulia Wienhues, Nare Ngoepe, Moritz Muschick, Yunuen Temoltzin-Loranca, Hendrik Vogel, Martin Grosjean, Willy Tinner, Andrew Cohen, Mary Kishe, Oliver Heiri, Ole Seehausen, Blake Matthews","doi":"10.1111/fwb.14237","DOIUrl":"10.1111/fwb.14237","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.14237","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140057610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Long-term differences in population structure, body size and distribution patterns of amphipods and isopods in wetlands with declining hydroperiods","authors":"H. E. Emery-Butcher, S. J. Beatty, B. J. Robson","doi":"10.1111/fwb.14231","DOIUrl":"10.1111/fwb.14231","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.14231","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140047145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：