J 2012

The age of island-like habitats impacts habitat specialist species richness

HORSÁK, Michal, Michal HÁJEK, Daniel SPITALE, Petra HÁJKOVÁ, Daniel DÍTĚ et. al.

Basic information

Original name

The age of island-like habitats impacts habitat specialist species richness

Authors

HORSÁK, Michal (203 Czech Republic, guarantor, belonging to the institution), Michal HÁJEK (203 Czech Republic, belonging to the institution), Daniel SPITALE (380 Italy), Petra HÁJKOVÁ (203 Czech Republic, belonging to the institution), Daniel DÍTĚ (703 Slovakia, belonging to the institution) and Jeffrey NEKOLA (840 United States of America)

Edition

Ecology, 2012, 0012-9658

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 5.175

RIV identification code

RIV/00216224:14310/12:00057097

Organization unit

Faculty of Science

UT WoS

000304368100015

Keywords in English

dispersal abilities; habitat age; habitat specialist; isolated fen habitats; path analysis; species richness

Tags

Změněno: 11/4/2013 19:02, Ing. Andrea Mikešková

Abstract

V originále

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.

Links

GAP504/11/0429, research and development project
Name: Gradienty prostředí, vegetační dynamika a krajinné změny v Západních Karpatech od pozdního glaciálu po současnost (Acronym: PALAEO-CARPATHIANS)
Investor: Czech Science Foundation
GAP505/11/0779, research and development project
Name: Vliv faktorů prostředí a schopnosti šíření na skladbu taxocenóz vodních bezobratlých v izolovaných prameništních slatiništích (Acronym: Bezobratlí v prameništních slatiništích)
Investor: Czech Science Foundation
KJB601630803, research and development project
Name: Původ a vývoj vápnitých slatinišť a jejich bioty v Západních Karpatech: Otázka glaciálních reliktů a refugií
Investor: Academy of Sciences of the Czech Republic, Origin and development of the Western Carpathian calcareous-fens and their biota: the question of glacial relicts and refuges