Functional traits determine why species belong to the dark diversity in a dry grassland fragmented landscape

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F20%3A00533594" target="_blank" >RIV/67985939:_____/20:00533594 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/20:10424768

Výsledek na webu

<a href="https://doi.org/10.1111/oik.07308" target="_blank" >https://doi.org/10.1111/oik.07308</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/oik.07308" target="_blank" >10.1111/oik.07308</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Functional traits determine why species belong to the dark diversity in a dry grassland fragmented landscape

Popis výsledku v původním jazyce

A challenge for nature conservation is to know why many species are absent from suit¬able habitats and whether they might be able to disperse and to establish. Here, we used 272 dry grassland patches within a fragmented landscape to investigate the role of local abiotic conditions and dispersal filtering in determining the likelihood of vascular plants to belong to the dark diversity (i.e. absent portion of the species pool). First, we quantified the species (SD), functional (FD) and phylogenetic (PD) diversity of both observed and dark communities. Second, we determined the roles of abiotic, present-day and historical landscape configuration variables in shaping their patterns. Third, we evaluated the importance of each variable in determining their species. Environmental filtering was assessed as effects of local abiotic conditions and dispersal filtering as the effects of present-day and historical landscape configuration. Dispersal filtering was also estimated by comparing dispersal traits of observed and dark diversity. Finally, we assessed community completeness to determine how much of the species pool was realized within a local community. We found higher SD in the observed compared to the dark communities, but PD did not differ. Contrary to expectations, dark commu¬nities resembled higher FD compared to the observed communities. Species with low dispersal capacity, low competitive abilities and high stress-tolerance were more often absent. Observed and dark diversities were mostly affected by local abiotic variables. In the observed communities, present-day landscape configuration variables affected SD while historical landscape configuration variables explained FD and PD. In the dark communities, we found the opposite pattern. Completeness was affected by present-day and historical patch size. Our results explain why dry grassland species may belong to the dark diversity and highlight the importance of local abiotic and dispersal traits of the species to conserve dry grasslands in changing landscapes.

Název v anglickém jazyce

Functional traits determine why species belong to the dark diversity in a dry grassland fragmented landscape

Popis výsledku anglicky

A challenge for nature conservation is to know why many species are absent from suit¬able habitats and whether they might be able to disperse and to establish. Here, we used 272 dry grassland patches within a fragmented landscape to investigate the role of local abiotic conditions and dispersal filtering in determining the likelihood of vascular plants to belong to the dark diversity (i.e. absent portion of the species pool). First, we quantified the species (SD), functional (FD) and phylogenetic (PD) diversity of both observed and dark communities. Second, we determined the roles of abiotic, present-day and historical landscape configuration variables in shaping their patterns. Third, we evaluated the importance of each variable in determining their species. Environmental filtering was assessed as effects of local abiotic conditions and dispersal filtering as the effects of present-day and historical landscape configuration. Dispersal filtering was also estimated by comparing dispersal traits of observed and dark diversity. Finally, we assessed community completeness to determine how much of the species pool was realized within a local community. We found higher SD in the observed compared to the dark communities, but PD did not differ. Contrary to expectations, dark commu¬nities resembled higher FD compared to the observed communities. Species with low dispersal capacity, low competitive abilities and high stress-tolerance were more often absent. Observed and dark diversities were mostly affected by local abiotic variables. In the observed communities, present-day landscape configuration variables affected SD while historical landscape configuration variables explained FD and PD. In the dark communities, we found the opposite pattern. Completeness was affected by present-day and historical patch size. Our results explain why dry grassland species may belong to the dark diversity and highlight the importance of local abiotic and dispersal traits of the species to conserve dry grasslands in changing landscapes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/GA19-04902S" target="_blank" >GA19-04902S: Prostorová variabilita zpětnovazebných interakcí rostlin a půdy jako významný mechanismus mezidruhového soužití</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Oikos

ISSN

0030-1299

e-ISSN

—

Svazek periodika

129

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

DK - Dánské království

Počet stran výsledku

13

Strana od-do

1468-1480

Kód UT WoS článku

000556425000001

EID výsledku v databázi Scopus

2-s2.0-85088780674