Freshwater Biology最新文献

筛选
英文 中文
Analysis of Macrozoobenthic Species Associations in the Eastern European Plain Under Changing Climatic Zone Conditions 变化气候带条件下东欧平原大型底栖动物群落分析
IF 2.8 2区 生物学
Freshwater Biology Pub Date : 2025-05-21 DOI: 10.1111/fwb.70044
Larisa V. Golovatyuk, Dmitry G. Seleznev, Ekaterina M. Kurina
{"title":"Analysis of Macrozoobenthic Species Associations in the Eastern European Plain Under Changing Climatic Zone Conditions","authors":"Larisa V. Golovatyuk,&nbsp;Dmitry G. Seleznev,&nbsp;Ekaterina M. Kurina","doi":"10.1111/fwb.70044","DOIUrl":"https://doi.org/10.1111/fwb.70044","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>The assessment of the geographical distribution of species under the influence of environmental factors at different scales is important in ecological studies. This study aimed to investigate macrozoobenthos species associations and determine the factors influencing their co-occurrence, based on data from various climatic zones of the Eastern European Plain.</li>\u0000 \u0000 \u0000 <li>We analysed a large dataset from 11 mid-sized and 81 small rivers in the Lower Volga Basin. Using a discrete binomial distribution, we identified pairs of associated species, grouped them and analysed their dependence on various abiotic factors.</li>\u0000 \u0000 \u0000 <li>Four clusters of macrozoobenthic species were identified, gradually replacing each other from the forest-steppe to the semi-desert climatic zone. From high to low latitudes, in these clusters the number of rheophilic and freshwater species decreased, while the number of limnophilic, euryhaline and halophilic species increased.</li>\u0000 \u0000 \u0000 <li>Species associations with habitat are determined by morphological and physiological adaptations to the complex of abiotic factors within local biotopes, trophic specialisation and facilitative interactions. The abiotic characteristics of the biotopes, in turn, were influenced by the following climatic and landscape factors: Average annual air temperature, precipitation volume influences salinity in the watercourses, and finally, the altitude and ruggedness of the terrain influenced water velocity. These factors constrained the spatial distribution of identified species assemblages to varying degrees.</li>\u0000 \u0000 \u0000 <li>The results obtained contribute significantly to our understanding of the geographical distribution of macrozoobenthic assemblages. The methodical approach employed in this study has the potential to facilitate the distribution analysis of other groups of living organisms across diverse spatial scales.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100623","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}
引用次数: 0
Species Richness and Abundance of Benthic Invertebrates Are Multiplied by Beaver (Castor sp.) Activities in Small Floodplains 小河漫滩上的海狸(Castor sp.)活动增加了底栖无脊椎动物的物种丰富度和丰度
IF 2.8 2区 生物学
Freshwater Biology Pub Date : 2025-05-19 DOI: 10.1111/fwb.70046
Sara Schloemer, Willem Kaijser, Thomas Hörren, Felix von Schledorn, Armin Lorenz, Paul Mausbach, Katharina Hund, Daniel Hering
{"title":"Species Richness and Abundance of Benthic Invertebrates Are Multiplied by Beaver (Castor sp.) Activities in Small Floodplains","authors":"Sara Schloemer,&nbsp;Willem Kaijser,&nbsp;Thomas Hörren,&nbsp;Felix von Schledorn,&nbsp;Armin Lorenz,&nbsp;Paul Mausbach,&nbsp;Katharina Hund,&nbsp;Daniel Hering","doi":"10.1111/fwb.70046","DOIUrl":"https://doi.org/10.1111/fwb.70046","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70046","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091762","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}
引用次数: 0
Stygobitic Candonidae (Crustacea, Ostracoda) Are Potential Environmental Indicators of Groundwater Quality in Tropical West Africa 西非热带地区潜在的地下水水质环境指标——蛤壳类、介形虫类
IF 2.8 2区 生物学
Freshwater Biology Pub Date : 2025-05-19 DOI: 10.1111/fwb.70043
Sourou Joseph Hotèkpo, Tadeusz Namiotko, Moïssou Lagnika, Moudachirou Ibikounlé, Patrick Martin, Isa Schön, Koen Martens
{"title":"Stygobitic Candonidae (Crustacea, Ostracoda) Are Potential Environmental Indicators of Groundwater Quality in Tropical West Africa","authors":"Sourou Joseph Hotèkpo,&nbsp;Tadeusz Namiotko,&nbsp;Moïssou Lagnika,&nbsp;Moudachirou Ibikounlé,&nbsp;Patrick Martin,&nbsp;Isa Schön,&nbsp;Koen Martens","doi":"10.1111/fwb.70043","DOIUrl":"https://doi.org/10.1111/fwb.70043","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>Ostracods are important components of groundwater communities that are influenced by abiotic environmental conditions and biotic interactions. We aimed to identify the factors associated with ostracod assemblages inhabiting groundwaters accessed through dug wells in several regions of Benin in West Africa, exposed to chronic influences of anthropogenic disturbances such as nutrient enrichment from infiltration of sewage or fertilisers from the surface.</li>\u0000 \u0000 \u0000 <li>Ostracods were collected from 219 wells in seven catchment areas using two complementary methods: active sampling with a phreatobiological net and passive trapping with a baited trap. Associations with 31 statistical predictor variables (a range of abiotic descriptors of water, hydrology, protection, usage and the type of well) and ostracod occurrence was evaluated using distance-based linear models and redundancy analysis.</li>\u0000 \u0000 \u0000 <li>We identified 60 ostracod species representing two ecological groups: 36 species of stygobites of the family Candonidae, an endemic species flock of a vast evolutionary radiation, and 24 species of non-stygobites, mostly of the family Cyprididae. This is the first large groundwater ostracod species flock reported from the entire African continent.</li>\u0000 \u0000 \u0000 <li>A number of variables associated with the structure of ostracod assemblages were identified. Except for the descriptors of wells, these included well-known chemical and physical properties (electrical conductivity, pH, temperature or bicarbonate concentration), but also the concentration of NO<sub>2</sub><sup>−</sup>. Although NO<sub>2</sub><sup>−</sup> has not yet been demonstrated to be important for ostracod assemblages, stygobites occurred significantly less frequently in higher concentrations of NO<sub>2</sub><sup>−</sup> than most non-stygobites.</li>\u0000 \u0000 \u0000 <li>We determined that stygobitic (candonid) ostracod species and genera may be a good potential environmental indicator of groundwater quality especially nitrite pollution of groundwater in tropical West Africa.</li>\u0000 \u0000 \u0000 <li>In tropical West Africa, many human populations rely on groundwater for domestic use and agricultural irrigation, while these aquatic resources are also often affected by anthropogenic disturbances. The use of stygobitic ostracods as potential indicators of groundwater quality offers a valuable tool for environmental monitoring and protection in tropical regions in West Africa, and may be also globally.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085499","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}
引用次数: 0
Identifying River Corridors for the Implementation of the Network of Green Infrastructure in Spain 确定河流走廊以实施西班牙绿色基础设施网络
IF 2.8 2区 生物学
Freshwater Biology Pub Date : 2025-05-19 DOI: 10.1111/fwb.70048
V. Hermoso, J. Salgado-Rojas, M. Lanzas, F. Morcillo, F. Casals, M. Oñorbe, R. Hidalgo, G. Magdaleno, J. R. Sánchez-González
{"title":"Identifying River Corridors for the Implementation of the Network of Green Infrastructure in Spain","authors":"V. Hermoso,&nbsp;J. Salgado-Rojas,&nbsp;M. Lanzas,&nbsp;F. Morcillo,&nbsp;F. Casals,&nbsp;M. Oñorbe,&nbsp;R. Hidalgo,&nbsp;G. Magdaleno,&nbsp;J. R. Sánchez-González","doi":"10.1111/fwb.70048","DOIUrl":"https://doi.org/10.1111/fwb.70048","url":null,"abstract":"&lt;p&gt;1. Spatial–temporal connectivity plays a key role in freshwater ecosystems by maintaining processes such as the transfer of materials and energy, gene exchange, and migratory movements necessary for the maintenance of functional ecosystems. However, connectivity in these systems has undergone severe modifications over the last century, threatening the persistence of biodiversity and the ecosystem services they provide. The European Union (EU) acknowledges the value of freshwater ecosystems as important connectivity elements of the landscape and the need to recover their functionality, not only for freshwater biodiversity, in policy instruments such as the European Biodiversity Strategy for 2030 or the Green Infrastructure Strategy. Priority areas need to be designated and managed as corridors. However, given the widespread impacts to connectivity, balancing the functionality of corridors and socio-economic constraints will be key.&lt;/p&gt;&lt;p&gt;2. We demonstrate how to design a network of river corridors in Spain to connect populations of freshwater fish species, while minimising the impact of barriers that compromise the functionality of the corridor or make its restoration expensive. We integrated information on the spatial distribution of 40 fish species and more than 30.000 barriers along 80.000 km of rivers and streams to identify priority corridors that connect at least 50% of the populations for all species. We ran three different scenarios that depict alternative planning interests and constraints: (i) an unconstrained scenario, where all river reaches were equally available to be part of the corridor; (ii) a Natura 2000 scenario (N2K), where corridors connected protected areas; and (iii) a no dam allowed scenario (NDA), where we avoided selecting reaches with dams as part of the network of corridors. We measured four different indicators to compare scenarios: number of planning units selected, the number of dams included, the length of continuous units selected and the length of continuous units selected for each species individually.&lt;/p&gt;&lt;p&gt;3. We found that the optimal network of corridors always contained reaches with barriers. However, the network was more spatially continuous (22% and 26% more continuity) and was always less impacted by barriers (6.9 and 2.6 fewer barriers) under the unconstrained scenario than under the N2K and NDA scenarios. The network of corridors was free from dams only under the NDA scenario, although the average connectivity across all species was always lower than under the other two scenarios.&lt;/p&gt;&lt;p&gt;4. Our results demonstrate that the design and management of a coherent network of freshwater corridors in Spain will need to integrate reaches impacted by barriers. Securing the functionality of such a network by restoring the lost connectivity will pose a socio-economic challenge. Spatial planning can help address this challenge by identifying priority corridors that minimise restoration efforts.&lt;/p&gt;&lt;p&gt;5. The approac","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70048","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085268","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}
引用次数: 0
Effects of Riparian Forest Thinning on Resident Salmonid Fishes in Coastal Northern California Catchments 北加州沿海集水区河岸林间伐对鲑鱼类鱼类的影响
IF 2.8 2区 生物学
Freshwater Biology Pub Date : 2025-05-19 DOI: 10.1111/fwb.70040
David A. Roon, Jason B. Dunham, Joseph R. Benjamin, Bret C. Harvey, J. Ryan Bellmore
{"title":"Effects of Riparian Forest Thinning on Resident Salmonid Fishes in Coastal Northern California Catchments","authors":"David A. Roon,&nbsp;Jason B. Dunham,&nbsp;Joseph R. Benjamin,&nbsp;Bret C. Harvey,&nbsp;J. Ryan Bellmore","doi":"10.1111/fwb.70040","DOIUrl":"https://doi.org/10.1111/fwb.70040","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085500","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}
引用次数: 0
How Do Environmental and Spatial Factors Influence Beta Diversity and Composition of Abundant and Rare Bacterioplankton Communities in Lakes From the Patagonian Plateaus? 环境和空间因素如何影响巴塔哥尼亚高原湖泊丰富和稀有浮游细菌群落的多样性和组成?
IF 2.8 2区 生物学
Freshwater Biology Pub Date : 2025-05-19 DOI: 10.1111/fwb.70047
Sol Porcel, Carmen Alejandra Sabio y García, María Romina Schiaffino, Griselda Chaparro, María del Carmen Diéguez, Julio Lancelotti, Ignacio Roesler, Irina Izaguirre
{"title":"How Do Environmental and Spatial Factors Influence Beta Diversity and Composition of Abundant and Rare Bacterioplankton Communities in Lakes From the Patagonian Plateaus?","authors":"Sol Porcel,&nbsp;Carmen Alejandra Sabio y García,&nbsp;María Romina Schiaffino,&nbsp;Griselda Chaparro,&nbsp;María del Carmen Diéguez,&nbsp;Julio Lancelotti,&nbsp;Ignacio Roesler,&nbsp;Irina Izaguirre","doi":"10.1111/fwb.70047","DOIUrl":"https://doi.org/10.1111/fwb.70047","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>Lakes in the same geographic region often exhibit outstanding differences in environmental features, as is the case in the high-altitude lakes from the basaltic plateaus of Patagonia (Argentina).</li>\u0000 \u0000 \u0000 <li>We analysed bacterial community composition (BCC) at local and regional scales in 37 shallow lakes on two Patagonian plateaus and evaluated the influence of environmental variables and geographic position on community structure.</li>\u0000 \u0000 \u0000 <li>β diversity within each plateau was the key component of regional bacterioplankton diversity. The sum of amplicon sequence variants (ASV) exclusive to each plateau was greater than 50%. Most of the exclusive ASVs corresponded to rare ones from each plateau, whereas abundant ASVs were mostly shared by both plateaus (81%), which indicates a more restricted distribution of rare and higher dispersal of abundant ASVs.</li>\u0000 \u0000 \u0000 <li>The lakes of the Strobel and Buenos Aires plateaus spanned a wide range of environmental conditions, which were associated with the BCC of lakes from both plateaus. Macrophyte cover, fish presence, conductivity, dissolved organic carbon, pH, and altitude were associated with BCC in these lakes. Notably, differences at the phylum and class levels were observed in lakes with contrasting limnological features. Fishless lakes had significantly greater relative abundance of <i>Bacteroidia</i> and <i>Gammaproteobacteria</i> than fish-stocked lakes. Lakes without macrophytes showed significantly higher relative abundances of <i>Cyanobacteria</i> and <i>Planctomycetota</i> than vegetated environments, and, conversely, vegetated lakes exhibited the highest relative abundance of <i>Bacteroidota</i>.</li>\u0000 \u0000 \u0000 <li>Our study shows a strong link between BCC and environmental factors, regardless of their regional or local classifications. Rare bacteria were more strongly associated with spatial factors than total or abundant bacteria, suggesting a limited dispersal capacity. Our findings highlight that variability in environmental conditions influences BCC and determines high β diversity and, consequently, high γ diversity.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085497","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}
引用次数: 0
Competitive Outcomes Between Floating-Leaved and Submerged Plants Under Eutrophication Depend on Growth Form 富营养化条件下浮叶植物与沉叶植物的竞争结果取决于生长形式
IF 2.8 2区 生物学
Freshwater Biology Pub Date : 2025-05-19 DOI: 10.1111/fwb.70050
Chuanxin Chao, Lei Dong, Weicheng Yu, Ru Huang, Xianyan Qin, Yonghong Xie, Feng Li
{"title":"Competitive Outcomes Between Floating-Leaved and Submerged Plants Under Eutrophication Depend on Growth Form","authors":"Chuanxin Chao,&nbsp;Lei Dong,&nbsp;Weicheng Yu,&nbsp;Ru Huang,&nbsp;Xianyan Qin,&nbsp;Yonghong Xie,&nbsp;Feng Li","doi":"10.1111/fwb.70050","DOIUrl":"https://doi.org/10.1111/fwb.70050","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>The niches of floating-leaved plants partially overlap with those of submerged plants, leading to widespread competition between the two in freshwater ecosystems. Therefore, one of the biggest challenges for submerged plants is coexisting with floating-leaved plants. However, the mechanisms of coexistence between floating-leaved plants of varying densities and different growth forms of submerged plants under eutrophic conditions remain unclear.</li>\u0000 \u0000 \u0000 <li>Here, we conducted a mesocosm experiment to study the combined effects of different densities and eutrophication levels of a common floating-leaved plant (<i>Nymphoides peltata</i>) on three growth forms of submerged plants (bottom-dwelling <i>Vallisneria natans</i>, erect <i>Myriophyllum aquaticum</i> and canopy-forming <i>Myriophyllum spicatum</i>).</li>\u0000 \u0000 \u0000 <li>We found that intermediate and high densities (9 and 18 plants) of <i>N. peltata</i> significantly reduced the total biomass and leaf chlorophyll content of submerged plants and had a greater impact on the morphological traits of <i>V. natans</i> and <i>M. spicatum</i>. In contrast, its effects on <i>M. aquaticum</i> were relatively minor, causing only slight reductions in ramet number and plant height. Elevated nutrient levels alleviated the competitive pressure of intermediate density <i>N. peltata</i> on submerged plants but were more favourable to <i>M. spicatum</i> and <i>M. aquaticum</i>. Submerged plants of different growth forms exhibited species-specific responses to this. <i>V. natans</i> responded by increasing plant height and allocating more biomass to the roots, while <i>M. spicatum</i> responded by producing more ramets and having a lower root/shoot ratio.</li>\u0000 \u0000 \u0000 <li>The combined effect of density and nutrient level had the greatest impact on the organ nutrient content of the erect <i>M. aquaticum</i>. Furthermore, increased floating-leaved plant density and higher levels of eutrophication were most detrimental to the growth of the bottom-dwelling <i>V. natans</i>.</li>\u0000 \u0000 \u0000 <li>Our study suggests that under eutrophic conditions, the coexistence pattern between floating-leaved and submerged plants will change, strengthening the dominance of floating-leaved plants and presenting greater challenges for submerged plants.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085498","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}
引用次数: 0
Effects of Long-Term Desiccation on Zooplankton Resting Egg Banks From Tropical Lake Sediments 长期干燥对热带湖泊沉积物中浮游动物休眠卵库的影响
IF 2.8 2区 生物学
Freshwater Biology Pub Date : 2025-05-07 DOI: 10.1111/fwb.70037
Jorge Laço Portinho, Gilmar Perbiche-Neves
{"title":"Effects of Long-Term Desiccation on Zooplankton Resting Egg Banks From Tropical Lake Sediments","authors":"Jorge Laço Portinho,&nbsp;Gilmar Perbiche-Neves","doi":"10.1111/fwb.70037","DOIUrl":"https://doi.org/10.1111/fwb.70037","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>Dormant egg banks may be vulnerable to climate change and extreme events, such as prolonged droughts in lakes. However, there is currently no information on this issue regarding Neotropical zooplankton. This study aimed to evaluate the viability of dormant zooplankton eggs and to investigate their hatching success following an extended period of desiccation (7 years).</li>\u0000 \u0000 \u0000 <li>Natural lake sediments with dormant egg banks were subjected to experimental desiccation for periods of 2 and 5 months, and 1, 6, and 7 years. After each desiccation period, we conducted ex situ hatching experiments to compare the structure (abundance and taxon richness) and composition of emerging zooplankton communities.</li>\u0000 \u0000 \u0000 <li>Long-term desiccation (6 and 7 years) led to a loss of zooplankton taxa, and the effects of desiccation differed between the resting stages of microcrustaceans and rotifers. Microcrustacean hatching was unaffected up to 1 year of desiccation but was null after 6 years. In contrast, desiccation-tolerant rotifer stages (e.g., <i>Lecane elsa</i> and Bdelloidea) persisted through 6 or 7 years of desiccation and hatched upon rehydration. Results showed distinct species compositions among the experimental desiccation periods.</li>\u0000 \u0000 \u0000 <li>Periods of prolonged desiccation periods reduced the taxonomic richness and abundance of zooplankton hatching from sediments, leading to subsequent changes in the structure and composition of the zooplankton assemblage wich differed among different durations of experimental desiccation.</li>\u0000 \u0000 \u0000 <li>Our findings show that long-term droughts in lakes, intensified by changes in climate, may alter freshwater zooplankton communities. By demonstrating the resilience of rotifers and the vulnerability of microcrustaceans to prolonged desiccation, this study shows that different components of zooplankton communities will respond differently to future climates.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919371","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}
引用次数: 0
Multiple Diversity Measures Are Necessary to Represent Biodiversity Patterns of Lentic Communities 反映真实群落生物多样性格局需要多种多样性测度
IF 2.8 2区 生物学
Freshwater Biology Pub Date : 2025-05-07 DOI: 10.1111/fwb.70041
Carlos H. L. Liborio
{"title":"Multiple Diversity Measures Are Necessary to Represent Biodiversity Patterns of Lentic Communities","authors":"Carlos H. L. Liborio","doi":"10.1111/fwb.70041","DOIUrl":"https://doi.org/10.1111/fwb.70041","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ol>\u0000 \u0000 \u0000 <li>The varying strengths of relationships between diversity measures—be they taxonomic, functional or phylogenetic—imply that biodiversity dimensionality is variable. Understanding these dimensions is essential to discerning how local communities respond to environmental changes.</li>\u0000 \u0000 \u0000 <li>This study aimed to (i) evaluate the dimensionality of biodiversity in lentic systems, (ii) identify the primary measures that differentiate local communities and (iii) test the hypothesis that biodiversity dimensionality is positively correlated with environmental dimensionality.</li>\u0000 \u0000 \u0000 <li>Using a large dataset encompassing phytoplankton, zooplankton and macroinvertebrate communities from lake ecosystems across the contiguous United States, I calculated Camargo's evenness index based on the eigenvalues from a principal component analysis (PCA) to assess the dimensionality of biodiversity. I also evaluated the degree to which multiple biodiversity dimensions were necessary to describe community patterns.</li>\u0000 \u0000 \u0000 <li>I found that two to three sets of diversity measures were required to adequately capture the biodiversity patterns of plankton and macroinvertebrate communities, respectively. The main measures differentiating local communities were those that included the phylogenetic structure among the taxa. Taxonomic and functional richness also emerged as important variables.</li>\u0000 \u0000 \u0000 <li>The anticipated positive relationship between biodiversity dimensionality and environmental dimensionality was supported for macroinvertebrate communities but not for planktonic groups. This finding suggests that environmental complexity may have distinct impacts depending on the community structure and taxonomic group considered.</li>\u0000 \u0000 \u0000 <li>These study results indirectly suggest that relying on a single measure may cause studies to overlook important responses of biodiversity to environmental gradients. More importantly, in line with previous studies, I found that using only measures based on taxonomic identities falls short in differentiating lentic communities. The feasibility of using measures that require detailed information (e.g., phylogenetic structure) in real-world contexts (e.g., bioassessment) is an issue that should be carefully evaluated in further studies.</li>\u0000 </ol>\u0000 \u0000 </div>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914273","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}
引用次数: 0
Temporal Demographic Patterns in Amazonian Upland Shrimps Related to Stream Hydraulics and Precipitation 与水力学和降水有关的亚马逊高原虾的时间人口分布格局
IF 2.8 2区 生物学
Freshwater Biology Pub Date : 2025-05-06 DOI: 10.1111/fwb.70036
Elmo Pereira da Silva, William E. Magnusson
{"title":"Temporal Demographic Patterns in Amazonian Upland Shrimps Related to Stream Hydraulics and Precipitation","authors":"Elmo Pereira da Silva,&nbsp;William E. Magnusson","doi":"10.1111/fwb.70036","DOIUrl":"https://doi.org/10.1111/fwb.70036","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":12365,"journal":{"name":"Freshwater Biology","volume":"70 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fwb.70036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914379","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}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信