A5080715665- Freshwater macroinvertebrate diversity and ecology
- Fish Ecology and Management Studies
- Aquatic Invertebrate Ecology and Behavior
- Species Distribution and Climate Change
- Ecology and Vegetation Dynamics Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Soil and Water Nutrient Dynamics
- Environmental DNA in Biodiversity Studies
- Hydrology and Sediment Transport Processes
- Microbial Community Ecology and Physiology
- Forest Ecology and Biodiversity Studies
- Diatoms and Algae Research
- Fish biology, ecology, and behavior
- Marine Biology and Ecology Research
- Coastal wetland ecosystem dynamics
- Wildlife Ecology and Conservation
- Fish Biology and Ecology Studies
- Wildlife-Road Interactions and Conservation
- Ecology and biodiversity studies
- Isotope Analysis in Ecology
- Peatlands and Wetlands Ecology
- Land Use and Ecosystem Services
- Plant and animal studies
- Hydrology and Watershed Management Studies
- Marine and coastal ecosystems
University of Oulu
2012-2025
Finnish Environment Institute
2014-2024
National Center for Ecological Analysis and Synthesis
2021
Universidade Federal do Paraná
2021
Helmholtz Centre for Environmental Research
2021
University of Helsinki
2015
University of Jyväskylä
2002-2005
Summary Metacommunity ecology addresses the situation where sets of local communities are connected by dispersal a number potentially interacting species. Aquatic systems (e.g. lentic versus lotic marine) differ from each other in connectivity and environmental heterogeneity, suggesting that metacommunity organisation also differs between major aquatic systems. Here, we review findings observational field studies on Species sorting (i.e. species ‘filtered’ factors occur only at...
Abstract Aim The number of studies investigating the nestedness and turnover components beta diversity has increased substantially, but our general understanding drivers remains elusive. Here, we examined effects species traits, spatial extent, latitude ecosystem type on diversity. Location Global. Time period 1968–2017. Major taxa studied From bacteria to mammals. Methods 99 that partition total into its components, assembled 269 259 data points for pairwise multiple site beta‐diversity...
Abstract River networks are hierarchical dendritic habitats embedded within the terrestrial landscape, with varying connectivity between sites depending on their positions along network. This physical organisation influences dispersal of organisms, which ultimately affects metacommunity dynamics and biodiversity patterns. We provide a conceptual synthesis role river in structuring metacommunities relation to processes riverine ecosystems. explore where network best explains observed...
1. The aim of this paper is to review literature on species diversity patterns freshwater organisms and underlying mechanisms at large spatial scales. 2. Some taxa (e.g. dragonflies, fish frogs) follow the classical latitudinal decline in regional richness (RSR), supporting found for major terrestrial marine organism groups. However, causing cline most are inadequately understood, although research suggests that energy history factors total endemic richness. Recent also not all comply with...
In this overview (introductory article to a special issue including 14 papers), we consider all main types of natural and artificial inland freshwater habitas (fwh). For each type, identify the biodiversity patterns ecological features, human impacts on system environmental issues, discuss ways use information improve stewardship. Examples selected key biodiversity/ecological features (habitat type): narrow endemics, sensitive (groundwater GDEs); crenobionts, LIHRes (springs); unidirectional...
Summary Beta diversity modelling has received increased interest recently. There are multiple definitions of beta diversity, but here, we focus on variability in species composition among sampling units within a given area. This facet can be described using various approaches. Some approaches ignore the spatial scale area considered (i.e. region limits), while some consider different limits as starting point for analysis diversity. We focused specifically diversity–environmental...
Climate effects and human impacts, that is, nutrient enrichment, simultaneously drive spatial biodiversity patterns. However, there is little consensus about their independent on biodiversity. Here we manipulate enrichment in aquatic microcosms subtropical subarctic regions (China Norway, respectively) to show clear segregation of bacterial species along temperature gradients, decreasing alpha gamma diversity toward higher nutrients. The dependence richness greatest at extreme levels,...
ABSTRACT The Anthropocene presents formidable threats to freshwater ecosystems. Lakes are especially vulnerable and important at the same time. They cover only a small area worldwide but harbour high levels of biodiversity contribute disproportionately ecosystem services. differ with respect their general type (e.g. land‐locked, drainage, floodplain large lakes) position in landscape highland versus lowland lakes), which dynamics these systems. should be generally viewed as ‘meta‐systems’,...
Abstract Within a metacommunity, both environmental and spatial processes regulate variation in local community structure. The strength of these may vary depending on species traits (e.g., dispersal mode) or the characteristics regions studied extent, heterogeneity). We metacommunity structuring three groups stream macroinvertebrates differing their overland mode (passive dispersers with aquatic adults; passive terrestrial active adults). predicted that should be more important for...
Community ecology recognises today that local biological communities are not only affected by biotic interactions and abiotic environmental conditions, but also regional processes (e.g. dispersal). While much is known about how metacommunities organised in space terrestrial, marine freshwater ecological systems, their temporal variations remain poorly studied. Here, we address the question of dynamics highly variable using intermittent rivers (IRs), those which temporarily stop flowing or...
Abstract The hypotheses that beta diversity should increase with decreasing latitude and spatial extent of a region have rarely been tested based on comparative analysis multiple datasets, no such study has focused stream insects. We first assessed how well variability in insect metacommunities is predicted by group, latitude, extent, altitudinal range, dataset properties across drainage basins throughout the world. Second, we relative roles environmental factors driving variation assemblage...
Abstract Community ecology has broadened considerably with the recognition that it is not only at species‐level data where biological patterns and their determinants should be studied. Rather, also functional phylogenetic examined, as they may provide important information for both basic applied fields such conservation bioassessment. We thus explored distance decay of taxonomic, functional, community compositions along spatial environmental gradients within a boreal lake metacommunity. used...
Essential Biodiversity Variables (EBVs) have been suggested to harmonize biodiversity monitoring worldwide. Their aim is provide a small but comprehensive set of variables that would give balanced picture the development and reaching international national targets. Globally, GEO BON (Group on Earth Observations Observation Network) has 22 candidate EBVs be monitored. In this article we regard as conceptual tool may help in making scale more robust by pointing out where focus further...
Owing to a long history of anthropogenic pressures, freshwater ecosystems are among the most vulnerable biodiversity loss
Global freshwater biodiversity is declining dramatically, and meeting the challenges of this crisis requires bold goals mobilisation substantial resources. While reasons are varied, investments in both research conservation lag far behind those terrestrial marine realms. Inspired by a global consultation, we identify 15 pressing priority needs, grouped into five areas, an effort to support informed stewardship biodiversity. The proposed agenda aims advance globally as critical step improving...
Understanding the variation in community composition and species abundances (i.e., β-diversity) is at heart of ecology. A common approach to examine β-diversity evaluate directional by measuring decay similarity among pairs communities along spatial or environmental distance. We provide first global synthesis taxonomic functional distance analysing 148 datasets comprising different types organisms environments.
ABSTRACT Aim We examined the relative contributions of spatial gradients and local environmental conditions to macroinvertebrate assemblages boreal headwater streams at three hierarchical extents: bioregion, ecoregion drainage system. also aimed identify variables most strongly related assemblage structure each study scale, assess how importance these is regional context structuring different scales. Location Northern Finland ( 62 – 68° N, 25–32° E). Methods Variation in data was partitioned...
Summary Multiscale determinants of diversity and the relationship between regional (RSR) local richness (LSR) have recently attracted increased attention, yet such studies on stream organisms remain scarce. We studied relationships among RSR, β‐diversity, LSR environmental variables in 120 headwater streams Finland. Approximately similar‐sized areas eight drainage systems were defined as regions, 15 riffles (= locality) per region sampled. RSR showed a strong positive with mean ( R 2 =...