Macroinvertebrate species occupancy frequency distribution patterns in eutrophic lakes




Suhonen Jukka, Paasivirta Lauri, Rantala Markus J., Salmela Jukka, Suutari Erna

PublisherSPRINGER

2022

Aquatic Ecology

AQUAT ECOL

56

1

201

212

12

1386-2588

1573-5125

DOIhttps://doi.org/10.1007/s10452-021-09909-7

https://link.springer.com/article/10.1007%2Fs10452-021-09909-7

https://research.utu.fi/converis/portal/detail/Publication/67532767



Metacommunity models describe species occupancy frequency distribution (hereinafter 'SOFD'). Our goal is to present how the differences in eight macroinvertebrate orders dispersal ability affect SOFD patterns. A total of 293 species from eight macroinvertebrate orders were observed in 14 eutrophic lakes in southern Finland. Species occupancy ranged from 1 to 14. About 30% (89 out of 293) of the species were found in only one lake, yielding a surprisingly high number of rare species. So, there were few widely distributed common species and numerous rare species with a restricted distribution. Combined data from eight macroinvertebrate orders supported the bimodal truncated SOFD pattern. Similarly, the low dispersal ability orders, watermites and mayflies, fitted the bimodal truncated SOFD pattern. However, bimodal symmetric SOFD pattern also fitted relatively well to the dragonflies and damselflies with high dispersal ability. It seems that differences in dispersal ability among different macroinvertebrate orders may partly explain observed differences. Moreover, our results supported slightly more a niche-based model rather than a metapopulation dynamics model in eutrophic lakes littoral macroinvertebrate metacommunities. Our results highlight that the dispersal ability is important trait for species conservation in patchily distributed habitat.


Last updated on 2024-26-11 at 22:55