Motorway as a barrier to dispersal of the threatened dragonfly Sympetrum depressiusculum (Odonata: Libellulidae): Consequence of mortality or crossing avoidance?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F17%3AA1801OGD" target="_blank" >RIV/61988987:17310/17:A1801OGD - isvavai.cz</a>

Výsledek na webu

<a href="https://www.eje.cz/artkey/eje-201701-0050_Motorway_as_a_barrier_to_dispersal_of_the_threatened_dragonfly_Sympetrum_depressiusculum_Odonata_Libellulidae.php" target="_blank" >https://www.eje.cz/artkey/eje-201701-0050_Motorway_as_a_barrier_to_dispersal_of_the_threatened_dragonfly_Sympetrum_depressiusculum_Odonata_Libellulidae.php</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14411/eje.2017.050" target="_blank" >10.14411/eje.2017.050</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Motorway as a barrier to dispersal of the threatened dragonfly Sympetrum depressiusculum (Odonata: Libellulidae): Consequence of mortality or crossing avoidance?

Popis výsledku v původním jazyce

We investigated the effect of a four-lane motorway as a barrier to the movement of an isolated population of the threatened dragonfly Sympetrum depressiusculum in an agricultural landscape in Central Europe. Generalized additive models were used to assess the motorway's effect on (i) the distribution of adult dragonflies in patches of terrestrial habitat surrounding their natal site, and (ii) individual flight behaviour (i.e. willingness or unwillingness to cross the motorway). Movement patterns of marked adults throughout the landscape were also investigated. During one season, significantly fewer adults were found at patches located on the far side of the motorway, indicating it has a barrier effect. Observations on flight behaviour revealed no apparent effect of the motorway. The possible barrier effect for the species studied was therefore presumed to be a consequence of road mortality. Our results indicate that the motorway may influence the dispersal of this threatened species of dragonfly, which is a habitat specialist with particular requirements for its terrestrial environment. Negative effects on other species with similar behaviour and strategy can be presumed. When establishing new habitats, carrying out reintroductions or translocations, it is necessary to consider that roadways may reduce population size and affect population dynamics by limiting dispersal.

Název v anglickém jazyce

Motorway as a barrier to dispersal of the threatened dragonfly Sympetrum depressiusculum (Odonata: Libellulidae): Consequence of mortality or crossing avoidance?

Popis výsledku anglicky

We investigated the effect of a four-lane motorway as a barrier to the movement of an isolated population of the threatened dragonfly Sympetrum depressiusculum in an agricultural landscape in Central Europe. Generalized additive models were used to assess the motorway's effect on (i) the distribution of adult dragonflies in patches of terrestrial habitat surrounding their natal site, and (ii) individual flight behaviour (i.e. willingness or unwillingness to cross the motorway). Movement patterns of marked adults throughout the landscape were also investigated. During one season, significantly fewer adults were found at patches located on the far side of the motorway, indicating it has a barrier effect. Observations on flight behaviour revealed no apparent effect of the motorway. The possible barrier effect for the species studied was therefore presumed to be a consequence of road mortality. Our results indicate that the motorway may influence the dispersal of this threatened species of dragonfly, which is a habitat specialist with particular requirements for its terrestrial environment. Negative effects on other species with similar behaviour and strategy can be presumed. When establishing new habitats, carrying out reintroductions or translocations, it is necessary to consider that roadways may reduce population size and affect population dynamics by limiting dispersal.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10613 - Zoology

Projekt

<a href="/cs/project/LO1208" target="_blank" >LO1208: Teoretické aspekty energetického zpracování odpadů a ochrany prostředí před negativními dopady</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Eur. J. Entomol.

ISSN

1802-8829

e-ISSN

—

Svazek periodika

114

Číslo periodika v rámci svazku

Online volume

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

391-399

Kód UT WoS článku

000419219900029

EID výsledku v databázi Scopus

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