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Taxonomic and functional successional patterns in macroinvertebrates related to flying dispersal abilities: a case study from isolated manmade ponds at reclaimed opencast coal mines

AuthorsMiguel Chinchilla, Leticia ; Boix, Daniel; Gascón, Stephanie; Comín, Francisco A.
KeywordsPrimary succession
Biological traits
Taxonomic composition
Deterministic forces
Issue Date16-Mar-2014
CitationHydrobiologia 732(1): 111-122 (2014)
AbstractIt has been proposed that communities change from r to K strategies during primary succession. However, because strong-flying organisms are expected to arrive first in newly created habitats and they show trait characteristics associated more often with K strategies, we hypothesized that the r to K trajectories would be more closely followed by flightless and poorly-flying organisms. Moreover, we expected that macroinvertebrate communities would converge in their functional composition due to deterministic forces while diverging as taxonomic assemblages due to stochastic drift and biotic interactions. However, we also expected that dispersal abilities of the organisms would affect these tendencies. To address these issues, macroinvertebrates were sampled from isolated manmade ponds of different ages (1–22 years old) constructed at reclaimed opencast coal mines. In accordance with our expectations, only flightless and poorly-flying organisms exhibited a slight shift from r to K strategies, the community taxonomically diverged along the primary succession gradient, and stochastic drift showed greater effects on strong-flying organisms. In contrast, the community did not converge in its functional composition. The weak differences observed among the macroinvertebrates from ponds of different ages suggested that limiting environmental conditions prevented the organisms from evolving to a more structured community.
Publisher version (URL)http://dx.doi.org/10.1007/s10750-014-1851-3
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