Aquatic Sciences

Article	Citations
Validity, applicability, and universality of fractal scaling laws for lakes in China	67
Asymmetric competition for habitats between the temperate Japanese eel Anguilla japonica and the tropical Indo-Pacific eel A. marmorata	63
Sex, mate guarding, and reproductive state as potential modulators of herbivory in an aquatic consumer	42
The relative importance of abiotic, biotic, and spatial factors in structuring the stream macroinvertebrate metacommunity in a temperate rainforest	28
Riparian cover buffers the effects of abiotic and biotic predictors of leaf decomposition in subtropical streams	25
Turnover structures in macrobenthic communities rather than nestedness in the Yellow River Delta wetland, China	25
Mayfly taxonomic and functional diversity in hydrologically extreme habitats of temporary pools in the Mediterranean karst intermittent rivers	22
Differential abundance, composition and mesohabitat use by aquatic macroinvertebrate taxa in ponds with and without fish	21
Modeling future dissolved oxygen and temperature profiles in small temperate lake trout lakes	21
Point and nonpoint sources of microplastics to two Southeast Michigan rivers and reduced biofilm function on plastic substrata	21
Fish community and its relationships with environmental variables in the channel connecting Poyang Lake and the Yangtze River	20
Hydrological conditions determine shifts of plankton metacommunity structure in riverine floodplains without affecting patterns of species richness along connectivity gradients	19
Subfossil chironomid assemblage shifts indicate Little Ice Age termination, deforestation, and human impact in a subalpine lake catchment	19
Benthic-pelagic equilibrium of carbon transfer in high-altitude lakes: featuring the role of lake’s characteristics and seasonal variation	16
Seasonal dynamics of Hildenbrandia rubra in a Mediterranean marine cave: insights into the algal community and biodiversity	16
Characterizing spatial and temporal variation in stable hydrogen isotopes (δ2H) between two distinct lentic freshwater food webs	15
Fish assemblages in Greek lentic ecosystems: key patterns and drivers	15
Influence of an anthropogenic disturbance gradient on the abundance and biochemical characteristics of heterotrophic bacteria on beaches of the central coastal zone of Veracruz	15
Compositional uniqueness and species contribution to beta diversity of aquatic macrophyte metacommunities from coastal wetlands	15
Influence of gut microbiome on health and development of penaeid shrimps	13
Early marine growth and spawning body size vary by year and region in invasive pink salmon (Oncorhynchus gorbuscha)	13
Ecosystem services of urban rivers: a systematic review	13
Seasonal and long-term variations of phytoplankton and protozooplankton in two nearby subtropical coastal environments in Brazil: which are the drivers?	13
Zooplankton size-structure dynamics of a lowland tropical floodplain lake	13
Effects of synthetic estrogen (17α-ethynylestradiol) on spawning in the aggregating anemone, Anthopleura elegantissima, and density and photosynthetic performance of its zooxanthellae symbiont, Brevio	12

New insight into and characterization of DOC and DON for inland waterbodies in the Songnen Plain, Northeast China	12
Predicting the density of zooplankton subsidy to a stream with multiple impoundments using water quality parameters	12
Effects of inter- and intraspecific competition and food availability on shredder invertebrates from an Amazonian stream	12
An extensive review of marine pigments: sources, biotechnological applications, and sustainability	11
Factors regulating proliferation and co-occurrence of loricate ciliates in the microzooplankton community from the eastern Arabian Sea	11
The spatiotemporal responses of phytoplankton to environmental variables in 7 coastal lagoons of Kızılırmak Delta (Samsun, Türkiye)	11
Patterns of genetic diversity of brown trout in a northern Spanish catchment linked to structural connectivity	11
Correction: Agro is not cool: DNA damage and oxidative stress in anurans evidencing the devastation of subtropical grasslands	11
Echoes of life: unveiling the cryptic legacy of Megabalanus azoricus dead shells on epibiont assemblages	10
Why does the relationship between benthic primary production and lake morphometry vary regionally?	10
Combined effects of fungicides and temperature affect non-target aquatic fungal assemblages	10
Aquatic diversity in a connected floodplain system: the role of environmental, spatial, and dispersal traits on macroinvertebrate communities	10
Urban land use homogenizes fish assemblages across mesohabitats in headwater streams	10
Tracing climate change with riverine ecotones and macroinvertebrates: is there need for extended monitoring at low elevations in western Himalaya?	10
Assemblage pattern, guild compositions and seasonal dynamics of ornamental and food fishes in the Indian Sundarbans estuarine system: a model-based approach for sustainability	10
High temperature, predation, nutrient, and food quality drive dominance of small-sized zooplankton in Neotropical lakes	9
Limnological history of three lakes from the former asbestos mining region of Thetford Mines (southern Quebec, Canada)	9
Heavy metal contamination in fish: sources, mechanisms and consequences	9
The influence of land use, microhabitat and aquatic insect subsidies on predatory riparian arthropod distributions	9
Unraveling the phytoplankton altitudinal dynamics in relation to environmental variables in a Himalayan River, Teesta, India	9
The urban footprint on aquatic ecosystems: comparison of microplastic dynamics in water bodies with divergent usage patterns	9
How does the phytoplankton community respond to the effects of La Niña and post-drought events in a tide-dominated Amazon estuary?	9
Spatial and temporal patterns in the chemistry of temperate low order Andean streams: effects of landscape gradients and hydrology	9
Dynamic phytoplankton community structure in a subtropical reservoir during an extended drought, Central Texas, USA	8
Physically stable yet biologically sensitive: multiyear ecological dynamics of anoxygenic phototrophs in stably redox-stratified Lake Cadagno	8
Macroinvertebrate functional traits differed with land use practices at Patagonian streams	8
Combined effects of salinization and temperature on microbial-mediated oak decomposition and invertebrate consumption	8
Effect of Asian clam shells on aquatic fauna in an artificial ditch	8
Mercury–dissolved organic matter interactions: insights on the removal of both pollutants in conventional drinking water treatment	8
Effects of water level fluctuations on the trophic state of a connected lacustrine system (Southern Andes, Patagonia, Argentina): applicability of the CDOM method as a tool for monitoring of eutrophic	8
Food web simplification driven by land use in lowland riverine wetlands	8
The role of the environment and connectivity with large rivers and streams on local fish diversity of tropical headwater streams	8
Taxonomic and functional aspects of diversity and composition of plankton communities in shallow lentic ecosystems along the human impact and environmental gradients	8
Plankton assemblages in a tropical West African estuary	8
Effects of dissolved inorganic level and sediment types on the plant traits of Myriophyllum spicatum L. and its exudates input to sediment	8
DNA barcoding of the Philippine tigerperches (Centrarchiformes: Terapontidae)	7
Protecting river eco-hydrological processes: insights from water temperature studies	7
Population genetics of the hawksbill sea turtle (Eretmochelys imbricata; Linnaeus, 1766) in the Persian Gulf: structure and historical demography	7
Assessing environmental and spatial drivers of non-marine ostracod metacommunities structure in Northern and Southern Patagonian environments	7
Marine protected areas of Africa: current challenges and future opportunities in conservation	7
Structural and functional responses of lotic biofilm to abrasive sediments and P enrichment: an indoor experimental approach	7
Leaf litter decomposition rates in freshwaters differ by ecosystem	7
Seasonal hydrology shapes the taxonomic and functional diversity of fish associated with aquatic macrophytes in a neotropical floodplain lake	7
Cross-species coprophagy in small stream detritivores counteracts low-quality litter: native versus invasive plant litter	7
Estimating fish diversity and distribution using environmental DNA metabarcoding in a major tributary of the Yangtze River, China	7
Hydrodynamical events shape lake-type-specific dynamics of manganese in boreal catchment	7
Interactions between diurnal winds and floodplain mosaics control the insect boundary layer in a river corridor	7
Evaluating the influence of landscape, local habitat, and spatial distance on the structure of stream fish assemblages in two basins within the Western Amazon	7
Decomposition of four aquatic macrophytes: Nutrient release, dissolved organic matter transformation, and epiphytic microbial dynamics	7
Contribution of riverine dissolved organic carbon to organic carbon decomposition in the Ariake Sea, Japan, a coastal area suffering from summer hypoxia	7

A global analysis on the relationship between water retention time and dissolved carbon across inland waters	7
Riparian and watershed land use alters food web structure and shifts basal energy in agricultural streams	6
Microbial contamination in a large drinking water reservoir in north Vietnam	6
Evaluation of Zayandehroud basin health in the Iranian plateau	6
Dissolved organic matter (DOM) characterization in subantarctic shallow lakes and beaver ponds	6
Dissolved organic carbon dynamics are driven by water temperature, primary production, and anoxia over 5 years of whole-ecosystem experiments in a eutrophic reservoir	6
Effect of glyphosate on the sporulation of aquatic fungi: an in-vitro experience	6
Changes in river ice cover in the context of climate change and dam impacts: a review	6
Seasonal variations of ammonia-oxidizing archaeal and bacterial communities in floodplain lake sediments	6
Impact of two invasive species, roach and the zebra mussel, on pelagic zooplankton species abundance in Lower Lough Erne	6
Genomic, morphological and migratory patterns in recovering Atlantic salmon populations	6
Benthic communities of saline rivers in the arid zone of south Russia: saliny tolerance, production, trophic conditions	6
Spatio-temporal variations of strontium isotope ratios in the Mur River: a tool to support river management	6
Visualizing seasonal habitats in river floodplains using timelapse photography and underwater video	6
Fatty acid flux disparities between aquatic and terrestrial ecosystems in a shaded river can alter the nutritional content of consumer resources	6
The relative influence of riparian vegetation structure and composition on instream health: a multivariate assessment	6
Ecological and environmental characteristics of a seagrass-dominated hypersaline coastal Mediterranean lagoon: a multidisciplinary approach	6
Does the spatial aggregation of ponds affect crustacean zooplankton diversity and grazing efficiency in the agricultural multi-pond system?	6
Fish assemblage taxonomy highlights spatial patterns of β-diversity within a freshwater ecoregion	6
Distribution of inorganic nitrogenous species and nitrification in the mangrove environment of the Indian Sundarbans	6
Cold-tolerant traits that favour northwards movement and establishment of Mediterranean and Ponto-Caspian alien aquatic invertebrates	6
Characteristics of N2O release from polluted creeks in the Taihu Lake Basin: sources and microbial populations	6
New insight into barium toxicity in the gills of the European clam (Ruditapes decussatus): a focus on redox status, fatty acids profiles, and histological structures	6
The association of a non-native amphipod with an invasive reef-building polychaete as an enhancer of biological invasion processes	5
Genetic diversity studies of Baikal endemic sponges at the interspecies and population levels using high-resolution microsatellite markers	5
Molecular level characterization of DOM along a freshwater-to-estuarine coastal gradient in the Florida Everglades	5
Correction: Siliceous microfossils in the surface sediments of the eastern Arabian Sea	5
Structural and functional changes in macrophyte species composition in softwater lakes after 60 years of land use	5
The structure, composition, and predicted microbiome functional genes in Pacific white shrimp (Litopenaeus vannamei) grow-out ponds with different survival rates through high-throughput sequencing	5
Influence of groundwater discharge on the hydrochemistry of coastal lagoons and marsh environments in Punta Rasa Natural Reserve area, Argentina	5
Water surface variability in oceanic and estuarine coasts of Amapá, Brazil	5
Canopy development influences early successional stream ecosystem function but not biotic assemblages	5
Production of dissolved organic matter from lily pads (Nymphaea odorata) in a mesotrophic freshwater lake	5
Composition, structure, and distribution of diatom assemblages in Mediterranean thermal spring ecotones affected by natural and human disturbances	5
A critical review and knowledge gaps to assess and manage threatened parrotfishes’ stocks in Brazil	5
Environmental drivers alter PUFA content in littoral macroinvertebrate assemblages via changes in richness and abundance	5
Intake of microplastics by fishes in a floodplain lake of the Curiaú River (Macapá, Amapá, Brazil)	5
Community trophic structure within reservoirs changes in the presence of invasive Chinese mystery snail (Cipangopaludina chinensis) and northern crayfish (Faxonius virilis)	5
Transitional circulation patterns from full ice cover to ice-off in a seasonally ice-covered lake	5
Avoidance behavior of grass carp (Ctenopharyngodon idella) shoals to low-frequency sound stimulation	5
First insight in cyanobacterial and algal communities from cave stream (Stopić Cave, Serbia)	5
Resilience and vulnerability of the stonefly Nemoura cinerea to increased temperature and drought	5
Diurnal variations in greenhouse gas diffusive emissions from a river covered with submerged macrophytes: environmental and biotic driving factors	5
Trophic relationships of 13 small to medium-sized elasmobranchs in Central Patagonia, Southwestern Atlantic	4
Comparative analysis of the microbiota in wild mud crab (Scylla serrata) intestine, sediment, and water in Koggala Lagoon, Sri Lanka	4
Significant diurnal variation of CO2 flux from a shallow eutrophic lake: effects of submerged aquatic vegetation and algae bloom	4
Dormant and active ostracod communities in six rice fields of Yunnan, China	4
Exploring the functional connectivity between the Kis-Balaton Water Protection System and Lake Balaton using satellite data	4
Contribution of the degradation of different hygrophytes to chromophoric dissolved organic matter during the inundation period	4
Feeding ecology of a detritivorous fish in controlled flood pulse area in the Amazon revealed by stomach content and stable isotopes analyses	4
Contextualizing microplastic pollution in different river habitats through rapid habitat assessment in South Africa	4
Combined effect of stream drying and nutrient enrichment on macroinvertebrate community: experimental study from artificial stream mesocosms	4
Correction: Tracking repeat spawning anadromous fish migrations over multiple years in a fragmented river suggests philopatry and sex‑linked variation in space use	4
The impact of permanganate pre-oxidation on subsequent drinking water treatment operations	4
Exploring uncharted waters: insights into groundwater zooplankton of the Brazilian semiarid region	4
Disentangling responses of aquatic and terrestrial invertebrates to drying in saline streams and shallow lakes	4
Spread and persistence of the invasive dinoflagellate Ceratium furcoides (Levander) Langhans through South America: watersheds in Rio Grande do Sul, Brazil	4
Tracking repeat spawning anadromous fish migrations over multiple years in a fragmented river suggests philopatry and sex-linked variation in space use	4
Functional diversity of mesozooplankton communities in a transitional subtropical marine system	4
All in moderation: crayfish populations are affected by precipitation-driven habitat availability and water quality in a non-perennial stream	4
Effects of leaf litter naturally enriched with metals on consumption, growth, and survival of an endemic Azorean shredder	4
Evaluating the use of a freshwater protected area by northern pike (Esox lucius) in a large temperate lake system	4
Microplastics Abundance in Aquatic Environment and its Impact on Macrobenthos	4
Spatial heterogeneity of zooplankton community in an eutrophicated tropical estuary	4
Which filter should I use? A comparative study of environmental DNA concentration methods for detection of freshwater species	4
Combining biotelemetry and genetics provides complementary insights relevant to the management and conservation of a freshwater predator (Esox lucius) living in brackish lagoons	4
Seasonal dynamics of mangrove outwelling and its impact on estuarine productivity: insights from multi-parameter analysis across tidal variations	4
Nitrogen and phosphorus release from a dominant plant in the water-level fluctuation zone of the Three Gorges Reservoir	4
A new ecological index for assessing benthic invertebrate assemblages in tropical coral reef ecosystems	4
Is altitude a surrogate for the spatial patterns and determinants of lentic zooplankton communities?	4
Ephemeroptera, Plecoptera and Trichoptera (EPT) trait-based biomonitoring of rivers within the northwestern Rif of Morocco: implications for determining riverine ecosystems ecological health in Africa	4
Sea lamprey (Petromyzon marinus L.) nests do not affect stream functionality despite increasing physical heterogeneity	4
Does winter application of road salt affect zooplankton communities in urban ponds?	4
Climate-change and nonnative-piscivore impacts on a renowned Oncorhynchus metapopulation, requirements for metapopulation recovery, and similarities to anadromous salmonid metapopulations	4
Does hydrological connectivity control functional characteristics of artificial wetland communities? Evidence from the Rhône River	4
Homogenization and functional simplification of zooplankton in reservoirs connected by water transfer	4
Drivers and resilience of methane-derived carbon contribution to chironomid biomass in boreal lakes	4
Temporal variability of dissolved organic matter composition in the hypersaline Mono Lake, California	4
Drivers of fish diversity in Neotropical streams of the Upper Paraná River: the role of mesohabitats, riparian structure, and regional factors	3
Nitrogen-15 NMR study on the incorporation of nitrogen into aquatic NOM upon chloramination	3

Trait–environment diagnosis of ecological instability in Korean streams using benthic diatoms and machine learning: a UMAP–CDI framework	3
Timing of the reproductive cycle of Holothuria (Mertensiothuria) leucospilota (Brandt, 1835) from the Persian Gulf based on evaluation of gonad histomorphology and sex hormones	3
Land use changes drive zooplankton ecological uniqueness and species contributions in Amazon ponds and streams	3
Evolutionary biogeography of Cnesterodontini (Teleostei: Poeciliidae): area relationships and priority ranking for conservation	3
Ecological importance of crayfish claws in consumption of mobile benthic prey	3
Contribution and control of microbial necromass carbon in wetland soils	3
Impact of altitudinal variation on phytoplankton community dynamics and ecological status across 70 lentic systems in Türkiye	3
An inexpensive method for the measurement of photosynthetically active radiation profiles in waterbodies	3
Extreme drought conditions interact with urbanisation, affecting hydrological regimes and water quality in temperate lowland streams	3
Correction: Ecological effects of mosquito control with Bti: evidence for shifts in the trophic structure of soil- and ground-based food webs	3
Phytoplankton composition in Mediterranean confined coastal lagoons: testing the use of ecosystem metabolism for the quantification of community-related variables	3
Site contributions to phytoplankton beta diversity along two subtropical reservoirs	3
A global typological approach to classify lakes based on their eutrophication risk	3
Trophic dynamics of two omnivorous shrimps in the middle Paraná River	3
Different responses of taxonomic and functional diversity to environmental changes: case study of fish communities in the Zhoushan fishing ground, China	3
Effects of surface runoff from agricultural soils on the succession of microconsumer organisms in a lotic mesocosm	3
Tiny clams, big function: long-term shifts in bivalve-mediated self-purification in the estuarine system of the Neva River	3
Fish assemblage structure and functional guild composition of Matla Estuary, Indian Sundarbans	3
Effects of climate change and variability on thermal regime and dissolved oxygen resources of oligotrophic lakes in the Adirondack Mountain region	3
From natural coexistence to artificial colonisation: habitat use, competition and population structure of sympatric Aegla species	3
Daily dissolved oxygen saturation patterns mediated by light and stream discharge in littoral regions of an oligotrophic mountain lake	3
Tolerance of neonates of freshwater snails to starvation and desiccation and its relationship to invasiveness	3
Age structure and growth patterns of the endangered freshwater mussel Unio crassus Philipsson, 1788 under different environmental conditions	3
Breathing in sleep: oxygen dynamics during the polar night in an Arctic lake	3
Greenhouse gas emissions from hydropower reservoirs over a 100-year life cycle: impacts of reservoir hydrological attributes	3
Spatial ecology of non-native common carp (Cyprinus carpio) in Lake Ontario with implications for management	3
Arctic shelf water can be categorized by sampling site linking its optical parameters and molecular composition of SPE-DOM	3
Cascading effects of land use on ecosystem function in Afrotropical headwater streams	3
Toxic metal pollution of aquatic ecosystems of European Union nature protection areas in a region of intensive agriculture (Lake Gopło, Poland)	3
Assessing the diversity of microalgal assemblages on polymeric substrates shaped by environmental and anthropogenic factors in lentic freshwaters	3
Database of immature stage traits of Ephemeroptera, Plecoptera, and Trichoptera (EPT) genera for the Amazon	3
Variability in the summer movements, habitat use and thermal biology of two fish species in a temperate river	3
Hydrogeological functioning of the Massenya floodplain, Lake Chad Basin: insights from stable isotopes and hydrochemistry	2
Internal phosphorus loading alters nutrient limitation and contributes to cyanobacterial blooms in a polymictic lake	2
Living in a changing world: effects of roads and Pinus monocultures on an anuran metacommunity in southern Brazil	2
Unveiling the spatio-temporal variation of harmful algal bloom (HAB) species assemblages and their relationship with environmental factors in a tidal creek environment	2
Siliceous microfossils in the surface sediments of the eastern Arabian Sea	2
Correction: Impacts, challenges, and adaptation of small-scale fishers during the COVID-19 pandemic in selected tropical countries	2
Environmental factors and phytoplankton functional groups structuring zooplankton community in Lake Kuriftu, Ethiopia	2
Unveiling the spatiotemporal variation of zooplankton community structure and their relationship with environmental variables using multivariate analysis in a tropical mangrove estuary	2
Changes in basal resources mediate the effects of Eucalyptus spp. afforestation on macroinvertebrate functional diversity in subtropical lowland streams	2
Seasonal differences in nutrient uptake dynamics in coastal spring-fed ecosystems: the potential effects of Florida manatees and humans	2
Spatial variability in nutrient and organic matter concentrations during hydrological fragmentation of an intermittent temperate catchment	2
Impacts, challenges, and adaptation of small-scale fishers during the COVID-19 pandemic in selected tropical countries	2
Methane exchange across the sediment–water interface in a densely urbanized tropical Bay of Jakarta, Indonesia	2
Horticultural land use effect on fish assemblages in Neotropical lowland streams, Buenos Aires, Argentina	2
The effect of environmental and anthropogenic factors on the microbiome of the sponge, Halichondria panicea, at three coastal sites with different bathing water quality in North east England	2
Succession of microconsumers in waterlogged pampean soils (Buenos Aires, Argentina): a microcosm experiment	2
Convergence in floodplain pond communities indicates different pathways to community assembly	2
Development of optimized COI primers for biodiversity assessment: a case study of ichthyoplankton in Vietnam	2
Habitat-dependent metabolic costs for a wild cold-water fish	2
Life history traits of the marine amphipod Cymadusa vadosa under laboratory conditions: insights on productivity and aquaculture potential	2
Riparian and aquatic organisms respond differently to altered hydrology and Bacillus thuringiensis israelensis (Bti) application in floodplain mesocosms	2
Southern South American hydroclimatic units, their recent continental ostracod association characterisation: useful for palaeohydrological studies	2
Field study on natural phytoplankton throughout “Bizerte City” oil spill on the south-western coast of the Mediterranean Sea	2
Potentials of machine learning models in estimating the seasonal variability of suspended particulate matters in river ecosystems	2
Utilizing rapid bioassessment protocols to evaluate impacts of abandoned mine drainage discharges on a receiving stream	2
Analysis of the elements of metacommunity structure in a Mediterranean basin: implications in the framework of global change	2
Cobalt speciation and cycling in Linsley Pond, Connecticut, USA	2
Ecological function of herbivorous fish in coral reef ecosystem and their roles in promoting reef resilience	2
Assessment of correspondence between periphytic biofilm fatty acid profiles and measures of stream water quality	2
Seasonal phytoplankton ecosystem dynamics in response to environmental variables in Winam Gulf, Lake Victoria, Kenya	2
A global meta-analysis of the effects of land use on the diversity of stream fish and macroinvertebrates	2
Phosphorus source identification in a human-impacted small watershed using phosphate oxygen isotopes	2
Mangroves of the Maldives: a review of their distribution, diversity, ecological importance and biodiversity of associated flora and fauna	2
Influences of dissolved organic matter on phytoplankton functional diversity and resource use efficiency differ in three lakes with contrasting trophic state and depth	2
Agro is not cool: DNA damage and oxidative stress in anurans evidencing the devastation of subtropical grasslands	2
Influence of environmental conditions and the fragmented landscape on the co-occurrence patterns of the ichthyofauna of a stream in southwestern Brazilian Amazon	2
High niche overlap between native and non-native apex fish in a human-impacted floodplain	2
Characterizing the seasonal variation and key influencing factors of dissolved organic matter in the Luohe River, a main tributary of the Yellow River, China	2
Utilization of basal resources in a forested headwater stream: a combined stable isotope and fatty acid approach	2
The universal trophic index: new methodological approach to eutrophication monitoring and control	2
Comparison of Kızılırmak and Yeşilırmak (Southern Black Sea) estuarine ecosystems based on macrobenthic biodiversity and environmental variables and new records for the macroinvertebrate fauna of Turk	2
Dissolved greenhouse gas (CO2, CH4, and N2O) emissions from highland lakes of the Andes cordillera in Northern Ecuador	2
The Egyptian Nile estuarine habitats: a review	2
Monthly variation in organic-matter decomposition in agricultural stream and riparian ecosystems	2
Effects of cattle intrusion on environmental conditions and fish assemblages of temperate neotropical prairie streams	2
Correction: Ecological quality of snowmaking reservoirs in the Alps and management perspectives	2
Freshwater mussel conservation in southern South America: update on distribution range and current threats	2