Midge distribution patterns at multiple spatial scales in shallow Finnish lakes revealed through sedimentary records | Zendy

Tomi P. Luoto | Zendy; Liisa Nevalainen | Zendy; VeliPekka Salonen | Zendy

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Midge distribution patterns at multiple spatial scales in shallow Finnish lakes revealed through sedimentary records

Author(s) -

Tomi P. Luoto,

Liisa Nevalainen,

VeliPekka Salonen

Publication year - 2019

Publication title -

entomologica fennica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.173

H-Index - 21

eISSN - 2489-4966

pISSN - 0785-8760

DOI - 10.33338/ef.84575

Subject(s) - midge , transect , spatial ecology , habitat , spatial distribution , ecology , abundance (ecology) , scale (ratio) , physical geography , environmental science , geography , spatial variability , biology , cartography , statistics , remote sensing , gall , mathematics

Thisstudy wasbasedonsedimentary midge(Diptera:Nematocera)assemblages from multilake datasets along environmental transects from Finland (regional), southern Finland (semiregional), and Helsinki district (local) and an intralake dataset from eastern Finland (site-specific). The aim was to examine scale-dependencies in midge distribution. The results imply that distribution and abundance of midge taxa are related to scale: on the regional scale the forcing factors arerelatedtoprevailingclimateconditions,onsemiregionalscaletheyarerelated towaterquality,onmorelocalscalespredationpressureisthekeyvariableandon site-specificscaleshabitatcharacteristicsdeterminethespeciesassemblages.Althoughthenumberofstudysiteswasnotequalandnotallenvironmentalparameters were possible to measure from all spatial scales, it is apparent that caution is required in midge-based environmental assessments, because changes in faunal composition are driven by factors operating at different spatial scales.

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