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@article{982468,
author = {Horsák, Michal and Hájek, Michal and Spitale, Daniel and Hájková, Petra and Dítě, Daniel and Nekola, Jeffrey},
article_number = {5},
keywords = {dispersal abilities; habitat age; habitat specialist; isolated fen habitats; path analysis; species richness},
language = {eng},
issn = {0012-9658},
journal = {Ecology},
title = {The age of island-like habitats impacts habitat specialist species richness},
volume = {93},
year = {2012}
}
TY - JOUR
ID - 982468
AU - Horsák, Michal - Hájek, Michal - Spitale, Daniel - Hájková, Petra - Dítě, Daniel - Nekola, Jeffrey
PY - 2012
TI - The age of island-like habitats impacts habitat specialist species richness
JF - Ecology
VL - 93
IS - 5
SP - 1106-1114
EP - 1106-1114
SN - 00129658
KW - dispersal abilities
KW - habitat age
KW - habitat specialist
KW - isolated fen habitats
KW - path analysis
KW - species richness
N2 - While the effects of contemporaneous local environment on species richness have been repeatedly documented, much less is known about historical effects, especially over large temporal scales. Using fen sites in the Western Carpathian Mountains with known radiocarbon-dated ages spanning Late Glacial to modern times (16 975–270 cal years before 2008), we have compiled richness data from the same plots for three groups of taxa with contrasting dispersal modes: (1) vascular plants, which have macroscopic propagules possessing variable, but rather low, dispersal abilities; (2) bryophytes, which have microscopic propagules that are readily transported long distances by air; and (3) terrestrial and freshwater mollusks, which have macroscopic individuals with slow active migration rates, but which also often possess high passive dispersal abilities. Using path analysis we tested the relationships between species richness and habitat age, area, isolation, and altitude for these groups. When only matrix-derived taxa were considered, no significant positive relation was noted between species richness and habitat size or age. When only calcareous-fen specialists were considered, however, habitat age was found to significantly affect vascular plant richness and, marginally, also bryophyte richness, whereas mollusk richness was significantly affected by habitat area. These results suggest that in inland insular systems only habitat specialist (i.e., interpatch disperser and/or relict species) richness is influenced by habitat age and/or area, with habitat age becoming more important as species dispersal ability decreases.
ER -
HORSÁK, Michal, Michal HÁJEK, Daniel SPITALE, Petra HÁJKOVÁ, Daniel DÍTĚ a Jeffrey NEKOLA. The age of island-like habitats impacts habitat specialist species richness. \textit{Ecology}. roč.~93, č.~5, s.~1106-1114. ISSN~0012-9658. 2012.
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