undefined

Does trait‐based joint species distribution modelling reveal the signature of competition in stream macroinvertebrate communities?

Publiceringsår

2021

Upphovspersoner

Elo, Merja; Jyrkänkallio‐Mikkola, Jenny; Ovaskainen, Otso; Soininen, Janne; Tolonen, Kimmo T.; Heino, Jani

Abstrakt

1. The occupancy and abundance of species are jointly driven by local factors, such as environmental characteristics and biotic interactions, and regional‐scale factors, such as dispersal and climate. Recently, it has been shown that biotic interactions shape species occupancies and abundances beyond local extents. However, for small ectothermic animals, particularly for those occurring in freshwater environments, the importance of biotic interactions remains understudied. Species‐to‐species associations from joint species distribution models (i.e. species associations while controlling for environmental characteristics) are increasingly used to draw hypotheses of which species possibly show biotic interactions. 2. We studied whether species‐to‐species associations from joint species distribution models show signs of competition using a hypothesis testing framework in stream macroinvertebrate communities at regional extent. 3. We sampled aquatic macroinvertebrates from 105 stream sites in western Finland encompassing a latitudinal gradient of ca. 500 kilometers. We hypothesized that if competition drives these associations (H1) functionally similar species are mostly negatively associated, whereas functionally dissimilar species show random associations. We further hypothesized that the relationship between functional dissimilarity and the strength of association is more pronounced (H2) for abundances rather than occupancies, (H3) at small grain (i.e. stream site) rather than at large grain (i.e. river basin), and (H4) among species having weak dispersal ability than among species with high dispersal ability. 4. Stream macroinvertebrates showed both negative and positive species‐to‐species associations while controlling for habitat characteristics. However, the negative associations were mostly at large grain (river basin) rather than at small grain (stream site), in occupancy rather than abundance, and not related to species functional dissimilarity or to their dispersal ability. Thus, all our hypotheses considering possible competition (H1‐H4) were rejected. 5. Competition does not appear to be a major driving force of stream macroinvertebrate communities at the spatial grain sizes considered. The observed positive associations in occupancy at small grain (stream site) may be attributed to species’ similar microhabitat preferences, whereas at large grain (river basin), they may stem from metacommunity dynamics. Our results highlight that species traits were necessary to interpret whether or not species‐to‐species associations from joint species distribution models resulted from biotic interactions.
Visa mer

Organisationer och upphovspersoner

Finlands miljöcentral

Heino Jani Markus Orcid -palvelun logo

Tolonen Kimmo Orcid -palvelun logo

Jyväskylä universitet

Elo Merja Orcid -palvelun logo

Ovaskainen Otso Orcid -palvelun logo

Helsingfors universitet

Soininen Janne

Jyrkankallio-Mikkola Jenny

Ovaskainen Otso

Publikationstyp

Publikationsform

Artikel

Moderpublikationens typ

Tidning

Artikelstyp

En originalartikel

Målgrupp

Vetenskaplig

Kollegialt utvärderad

Kollegialt utvärderad

UKM:s publikationstyp

A1 Originalartikel i en vetenskaplig tidskrift

Publikationskanalens uppgifter

Moderpublikationens namn

Journal of Animal Ecology

Volym

90

Nummer

5

Sidor

1276-1287

Publikationsforum

59558

Publikationsforumsnivå

2

Öppen tillgång

Öppen tillgänglighet i förläggarens tjänst

Ja

Öppen tillgång till publikationskanalen

Delvis öppen publikationskanal

Parallellsparad

Ja

Övriga uppgifter

Vetenskapsområden

Ekologi, evolutionsbiologi

Nyckelord

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Publiceringsland

Förenade kungariket

Förlagets internationalitet

Internationell

Språk

engelska

Internationell sampublikation

Ja

Sampublikation med ett företag

Nej

DOI

10.1111/1365-2656.13453

Publikationen ingår i undervisnings- och kulturministeriets datainsamling

Ja