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@article{797070,
author = {Omesová, Marie and Horsák, Michal and Helešic, Jan},
article_number = {10},
keywords = {Bed sediments; Body size; Colonization},
language = {eng},
issn = {0028-1042},
journal = {Naturwissenschaften},
title = {Nested patterns in hyporheic meta-communities: the role of body morphology and penetrability of sediment},
volume = {95},
year = {2008}
}
TY - JOUR
ID - 797070
AU - Omesová, Marie - Horsák, Michal - Helešic, Jan
PY - 2008
TI - Nested patterns in hyporheic meta-communities: the role of body morphology and penetrability of sediment
JF - Naturwissenschaften
VL - 95
IS - 10
SP - 917–926
EP - 917–926
SN - 00281042
KW - Bed sediments
KW - Body size
KW - Colonization
N2 - We analyzed the vertical distribution patterns of taxa in the upper 70 cm of the hyporheic zone. We tested the hypotheses that in the vertical profile of the hyporheic zone sediment acts as a physical barrier (filter), allowing only the morphologically pre-adapted and adapted (i.e., smaller, narrower, more flexible) taxa to penetrate to deeper layers. We demonstrated that this mechanism can promote a strongly nested and colonization-driven pattern at higher taxa levels. The sediment filter (1) constricted the body width: 0.50 mm appeared to be the upper limit for successful sediment colonization at the study site, and (2) favored elongated taxa against small sized taxa. However, we found that nestedness could be sufficiently explained by the depth itself. Our study offers a possible explanation of depth patterns in hyporeic meta-communities as a result of morphological characteristics promoting nestedness at higher taxa level.
ER -
OMESOVÁ, Marie, Michal HORSÁK and Jan HELEŠIC. Nested patterns in hyporheic meta-communities: the role of body morphology and penetrability of sediment. \textit{Naturwissenschaften}. 2008, vol.~95, No~10, p.~917–926. ISSN~0028-1042.
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