Review
Biodiversity Conservation
Juliana S. Leal, Angelica L. Gonzalez, Bruno E. Soares, Clarice Casa Nova, Nicholas A. C. Marino, Vinicius F. Farjalla
Summary: The quantity and source of organic matter play a crucial role in determining the energy flow in freshwater food webs. Allochthonous material is the main resource for freshwater consumers, while autochthonous OM can also contribute to aquatic communities due to its higher nutritional quality. Through a meta-analytical approach, we found that the relative importance of allochthonous and autochthonous OM varies depending on environmental factors, with lotic systems being more influenced by autochthonous OM.
Article
Marine & Freshwater Biology
Tiphaine Labed-Veydert, Apostolos-Manuel Koussoroplis, Alexandre Bec, Christian Desvilettes
Summary: The study suggests that organic matter sources in forested headwater streams mainly come from biofilm, bryophytes, and fine benthic detrital particles, rather than leaf litter. Additionally, it highlights the significant contribution of autochthonous organic matter to the development of stream macroinvertebrates, especially in providing long-chain PUFAs.
Article
Environmental Sciences
Paulina Montero, Martina Coppari, Federico Betti, Giorgio Bavestrello, Giovanni Daneri
Summary: Aulacomya atra is an important suspension feeder in the benthic communities of the Chilean Patagonia fjords, utilizing both autochthonous and allochthonous organic matter, with higher ingestion rates observed in individuals fed with salmon food pellets during feeding experiments. The stable isotope analysis indicates a preference for phytoplankton carbon in their diet, suggesting limited utilization of terrestrially derived organic matter.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Ecology
Kaelyn J. Fogelman, James A. Stoeckel, Hisham A. Abdelrahman, Brian S. Helms
Summary: This study investigated the variation in food resource utilization of unionid mussels in central Texas across different catchments and seasons. The results showed that mussels primarily rely on coarse particulate organic matter (CPOM) and suspended particulate organic matter as their food resources, with minimal differences among species and sites.
FRESHWATER BIOLOGY
(2022)
Article
Biodiversity Conservation
Qian Zhang, Tao Yang, Xuhao Wan, Yiyan Wang, Wei Wang
Summary: The characteristics of benthic community structure in the Wei River basin are influenced by factors such as habitat degradation, water quality deterioration, and heavy metal contamination in sediment. Improving water quality and pollution control are identified as key strategies to enhance benthic biodiversity and promote sustainable development in the region.
ECOLOGICAL INDICATORS
(2021)
Article
Fisheries
Juliana Felden, Ivan Gonzalez-Bergonzoni, Adelita Maria Rauber, Marlon da Luz Soares, Marthoni Vinicius Massaro, Rodrigo Bastian, David Augusto Reynalte-Tataje
Summary: This study evaluated the role of riparian forest areas as food web subsidies in a newly formed reservoir in Brazil. Findings showed that terrestrial carbon was the primary source of fish production in the reservoir, with an increasing terrestrial support towards areas with riparian forests. The study highlighted the importance of preserving riparian forests in newly formed reservoirs to maintain natural ecosystem subsidies.
ECOLOGY OF FRESHWATER FISH
(2021)
Article
Environmental Sciences
Benjamin Linhoff
Summary: This study investigates the fate and sources of NO3- in the northern Chihuahuan Desert and reveals the significant impact of naturally occurring subsoil NO3- reservoirs on groundwater. By using a range of geochemical tools, it is possible to differentiate between anthropogenic and natural sources of NO3-. The study also highlights the major contribution of artificial groundwater recharge.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Weiwei Wang, Fei Zhang, Qi Zhao, Changjiang Liu, Chi Yung Jim, Verner Carl Johnson, Mou Leong Tan
Summary: Understanding the driving factors of oasis river nutrients is crucial to identify water pollution sources and protect water resources in arid areas. This study analyzed the relationship between explanatory variables (topographic, soil, meteorological elements, and land use types) and response variables (total phosphorus, TP and total nitrogen, TN) in the lower oasis irrigated agricultural reaches of the Kaidu River watershed in arid Northwest China. The results showed that the catchment buffer had the strongest explanatory power, and land use types, meteorological elements, and soil were the main factors driving TP and TN changes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Ecology
Debora Reis de Carvalho, Carlos Bernardo Mascarenhas Alves, Paulo Santos Pompeu
Summary: In this study, we analyzed the trophic structure and carbon sources supporting fish assemblages in five low-productivity rivers with different sizes. Using carbon and nitrogen isotope ratios, we found that detritus played an important role in sustaining fish assemblages, especially in smaller rivers. We also observed an increasing consumption of autochthonous primary producers with the increase in river size.
Article
Biodiversity Conservation
Huon L. Clark, Bruno A. Buzatto, Stuart A. Halse
Summary: Knowledge of subterranean fauna is usually derived from easily accessed caves and streambeds, while sampling fauna in regional groundwater aquifers or the vadose zone is challenging. The Robe Valley in Western Australia is recognized as a globally significant subterranean fauna hotspot, with 123 species collected through mining exploration drill holes and monitoring wells. This area showcases the richness of subterranean fauna in the arid Pilbara region, with efforts to ensure species persistence despite mining activities.
Article
Water Resources
T. Boas, D. Mallants
Summary: This study estimated groundwater recharge in data sparse regions under arid climate using a multi-model approach. The results showed that only rainfall events of more than 150-200 mm resulted in groundwater recharge, which was linked to extreme rainfall associated with monsoonal cyclones. The average recharge for the savanna-type vegetation was 4.6 mm/year, while the bare soil had an average recharge of 29.5 mm/year.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Ecology
Bruce A. Pascoe, Chris R. Pavey, Stephen R. Morton, Christine A. Schlesinger
Summary: The study found that rainfall variability is an important factor in structuring bird assemblages in arid Australia, and that irrigation can enhance species richness in irrigated areas. However, the uniqueness of bird assemblages in different habitats and the long-term cycles of productivity driven by rain also play a significant role in shaping the structure of bird communities.
ECOLOGY AND EVOLUTION
(2021)
Article
Geochemistry & Geophysics
Alexander T. Walker, Katy A. Evans, Christopher L. Kirkland, Paul A. Polito
Summary: Sulphur isotope analysis can be used to track sulphur sources within mineral systems and cycles through geological time. This study in the Fraser Zone of Australia suggests the presence of multiple modes of sulphur cycling within a single Proterozoic mineralised setting, with potential implications for similar polymodal sulphur cycling on Proterozoic continental margins worldwide.
Article
Ecology
Juliana S. Leal, Angelica L. Gonzalez, Rhuana C. Paulo, Vinicius F. Farjalla
Summary: This study examined the contribution of autochthonous resources to the diet of aquatic consumers in freshwater ecosystems. The spatial distribution of the autochthonous resource did not have a significant impact on its contribution, as aquatic consumers showed similar levels of autotrophy in all regions.
FRESHWATER SCIENCE
(2022)
Article
Environmental Sciences
Juan Gui, Zongxing Li, Fa Du, Baijuan Zhang, Jian Xue, Qiao Cui
Summary: Considering stable isotopes in precipitation is valuable for investigating hydrological processes. Therefore, it is necessary to correct the measured isotopic composition of precipitation under below-cloud evaporation. The study in the Qilian Mountains of China demonstrates the significance of evaporation rate on the isotopic composition of precipitation, reflecting the transition between monsoonal and arid climates.
CHINESE GEOGRAPHICAL SCIENCE
(2023)
Article
Marine & Freshwater Biology
Dale Campbell, Paul Humphries, Nicole McCasker, Daryl Nielsen
Article
Environmental Sciences
Warren L. Paul, Robert A. Cook, Phillip J. Suter, K. Robert Clarke, Michael E. Shackleton, Paul J. McInerney, John H. Hawking
WATER RESOURCES RESEARCH
(2018)
Article
Plant Sciences
Jade Dessent, Susan Lawler, Daryl Nielsen
SEED SCIENCE RESEARCH
(2019)
Article
Ecology
Daryl L. Nielsen, Linda E. Merrin, Carmel A. Pollino, Fazlul Karim, Danial Stratford, Jackie O'Sullivan
Article
Environmental Sciences
Nyein Thandar Ko, Phil Suter, John Conallin, Martine Rutten, Thom Bogaard
Article
Environmental Sciences
Gavin N. Rees, Robert A. Cook, Nathan S. P. Ning, Paul J. McInerney, Rochelle T. Petrie, Daryl L. Nielsen
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Chi T. U. Le, Warren L. Paul, Ben Gawne, Phillip J. Suter
WATER RESOURCES RESEARCH
(2020)
Article
Green & Sustainable Science & Technology
Nyein Thandar Ko, Phil Suter, John Conallin, Martine Rutten, Thom Bogaard
Article
Evolutionary Biology
Felipe Donateli Gatti, Frederico Falcao Salles, Phillip John Suter, Yuri Luiz Reis Leite
Summary: Atalophlebiinae originated in the late Gondwana supercontinent, influenced by a vicariant event during the Cretaceous period. Subsequently, speciation occurred within a Gondwanic corridor formed by South America, Antarctica, and Australia, shaping the current diversity and distribution patterns.
JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH
(2021)
Article
Ecology
Nipa Chaki, Michael Reid, Daryl L. Nielsen
Summary: Several studies suggest that flood history is important for microcrustacean egg bank composition and hatching responses. This study found that flood duration influences hatching patterns and microcrustacean abundance, with variation by sites, depth, and inundation duration. Changes in flood duration could impact microcrustacean assemblages and trophic interactions in temporary floodplain wetlands.
FRESHWATER BIOLOGY
(2021)
Article
Zoology
Phillip J. Suter, Julia H. Mynott, Jeff M. Webb
Summary: This article describes two species of Caenis found in northern Australia, both of which have straight forceps with a terminal tuft of spines. Male imagoes and nymphs of C. hanleyi were collected from the Northern Territory, while C. binda was only described based on male imagoes collected from streams in Queensland's Wet Tropics. C. hanleyi can be distinguished from C. binda by the structure of their forceps, with C. binda having longer and narrower forceps with longer apical spines. These are the first records of the Caenis genus in Australia.
Article
Engineering, Environmental
Chi T. U. Le, Warren L. Paul, Ben Gawne, Phillip Suter
Summary: Climate change is projected to threaten ecological communities through changes in various environmental variables. Causal modeling is essential for understanding the combined effects of these changes. In this study, a piecewise structural equation modeling approach was used to predict the responses of aquatic macroinvertebrates to disturbances caused by climate change. Data from long-term monitoring and existing models were integrated to explore the effects of future climate change and management interventions.
Article
Fisheries
Cherie J. Campbell, Cassandra S. James, Kaylene Morris, Jason M. Nicol, Rachael F. Thomas, Daryl L. Nielsen, Susan L. Gehrig, Gary J. Palmer, Skye Wassens, Fiona Dyer, Mark Southwell, Robyn J. Watts, Nick R. Bond, Samantha J. Capon
Summary: This passage discusses the challenges of evaluating wetland vegetation responses to flow regimes and proposes four principles to guide adaptive management. These principles include aligning management objectives, selecting indicators across scales, understanding temporal flow dynamics, and considering non-flow variables. Key knowledge needs to support these principles are highlighted, emphasizing the urgency of improving understanding of ecological, sociocultural, and economic values of wetland vegetation.
MARINE AND FRESHWATER RESEARCH
(2022)
Article
Fisheries
Nipa Chaki, Michael Reid, Daryl L. Nielsen
Summary: This study examines the effects of environmental cues on the hatching of microcrustacea in wetlands, particularly focusing on temperature and water depth. Results showed that temperature had a significant impact on the abundance and composition of hatched microcrustacea, especially non-ostracods. Changes in temperature due to global climate change or river regulation are likely to influence the abundance and composition of microcrustacean assemblages, particularly affecting food availability for larval and juvenile native fish.
MARINE AND FRESHWATER RESEARCH
(2021)
Article
Limnology
Eliana A. Panarelli, Daryl L. Nielsen, Aleicia Holland
Summary: This study compared active and dormant Cladocera assemblages in temporary and permanent wetlands along the Ovens River Floodplain in Victoria, Australia. It found higher taxonomic richness in active assemblages in temporary wetlands compared to permanent wetlands, while the dormant assemblages had similar taxonomy units. Permanent wetlands showed higher Shannon's diversity of resting eggs compared to temporary wetlands. Resting egg abundance was higher in temporary wetlands, but balanced by losses due to predation or physical damage during the terrestrial phase. Damage to egg integrity intensifies in wetlands experiencing dry phases.
JOURNAL OF LIMNOLOGY
(2021)