6 Works

Data from: Modelling of ships as a source of underwater noise

Jukka-Pekka Jalkanen, Lasse Johansson, Mattias Liefvendahl, Rickard Bensow, Peter Sigray, Martin Östberg, Ilkka Karasalo, Mathias Andersson, Heikki Peltonen & Jukka Pajala
In this paper, a methodology is presented for modelling underwater noise emissions from ships based on realistic vessel activity in the Baltic Sea region. This paper combines the Wittekind noise source model with the Ship Traffic Emission Assessment Model (STEAM) in order to produce regular updates for underwater noise from ships. This approach allows the construction of noise source maps, but requires parameters which are not commonly available from commercial ship technical databases. For this...

Data from: Multiple facets of stream macroinvertebrate alpha diversity are driven by different ecological factors across an extensive altitudinal gradient

Zhengfei Li, Xiaoming Jiang, Jun Wang, Xingliang Meng, Jani Heino & Zhicai Xie
Environmental filtering and spatial structuring are important ecological processes for the generation and maintenance of biodiversity. However, the relative importance of these ecological drivers for multiple facets of diversity is still poorly understood in highland streams. Here, we examined the responses of three facets of stream macroinvertebrate alpha diversity to local environmental, landscape-climate and spatial factors in a near-pristine highland riverine ecosystem. Taxonomic (species richness, Shannon diversity and evenness), functional (functional richness, evenness, divergence and...

Data from: Ecological niche features override biological traits and taxonomic relatedness as predictors of occupancy and abundance in lake littoral macroinvertebrates

Jani Heino & Kimmo T. Tolonen
The degree to which species ecological and biological traits determine their distribution and abundance has intrigued ecologists for a long time, and it has seen a revival in recent years. This topic is important because it provides information about the determinants of species rarity and their conservation implications. We examined the effects of niche breadth, niche position, biological traits and taxonomic relatedness on the interspecific occupancy-abundance relationship, as well as on occupancy and abundance, in...

Data from: Give me a sample of air and I will tell which species are found from your region – molecular identification of fungi from airborne spore samples

Nerea Abrego, Veera Norros, Panu Halme, Panu Somervuo, Heini Ali-Kovero & Otso Ovaskainen
Fungi are a megadiverse group of organisms, they play major roles in ecosystem functioning, and are important for human health, food production, and nature conservation. Our knowledge on fungal diversity and fungal ecology is however still very limited, in part because surveying and identifying fungi is time demanding and requires expert knowledge. We present a method that allows anyone to generate a list of fungal species likely to occur in a region of interest, with...

Data from: Combined effects of local habitat, anthropogenic stress, and dispersal on stream ecosystems: a mesocosm experiment

Jarno Turunen, Pauliina Louhi, Heikki Mykrä, Jukka Aroviita, Emmi Putkonen, Ari Huusko & Timo Muotka
The effects of anthropogenic stressors on community structure and ecosystem functioning can be strongly influenced by local habitat structure and dispersal from source communities. Catchment land uses increase the input of fine sediments into stream channels, clogging the interstitial spaces of benthic habitats. Aquatic macrophytes enhance habitat heterogeneity and mediate important ecosystem functions, being thus a key component of habitat structure in many streams. Therefore, the recovery of macrophytes following in-stream habitat modification may be...

Data from: Climate-driven hydrological variability determines inter-annual changes in stream invertebrate community assembly

Romain Sarremejane, Heikki Mykra, Kaisa-Leena Huttunen, Kaisa-Riikka Mustonen, Hannu Marttila, Riku Paavola, Kalle Sippel, Noora Veijalainen & Timo Muotka
Although flow regime is one of the major drivers of riverine communities, not much is known about how inter-annual variability and extremes of flow influence community assembly mechanisms. We used data on benthic macroinvertebrates and modelled flow regimes in 23 near-pristine boreal streams to assess how community assembly mechanisms and species occupancy varied in response to inter-annual variability in flow conditions across 11 successive years encompassing extreme (both low and high) flow events. A null...

Registration Year

  • 2018
    6

Resource Types

  • Dataset
    6

Affiliations

  • Finnish Environment Institute
    6
  • University of Oulu
    2
  • University of Jyväskylä
    2
  • Institute of Hydrobiology
    1
  • Natural Resources Institute Finland
    1
  • Chinese Academy of Sciences
    1
  • University of Helsinki
    1
  • Chalmers University of Technology
    1
  • Nottingham Trent University
    1
  • Finnish Meteorological Institute
    1