Avtor/Urednik		De Groot, Maarten
Naslov		Differences in pollinator composition, species ruchness and flower visit abundance between Centaurea jacea (L.) and Leontodon hispidis (L.) in a meadow in Central Slovenia
Prevedeni naslov		Razlike v vrstni sestavi, vrstnem bogastvu opraševalcev in pogostosti njihovega obiskovanja rastlin vrst Centaurea jacea (L.) in Leontodon hispidis (L.) na travniku v centralni Sloveniji
Tip		članek
Vir		Natura Sloveniae
Vol. in št.		Letnik 8, št. 2
Leto izdaje		2006
Obseg		str. 55-65
Jezik		eng
Abstrakt		In this pilot study, the differences in pollinator composition, species richness and pollinators' visits between Centaurea jacea and Leontodon hispidis were investigated. For 15 minutes, the pollinators visiting the plants in a particular meadow were counted. There was a difference in composition. On C, jacea mostly Apis mellifera occurred, while L. hispidis was visited mainly by syrphids. Furthermore, due to the frequent visits by Apis mellifera, the abundance of pollinators on C, jacea was higher then on L, hispidis, while the evenness was higher in L, hispidis The species richness did not differ between the plant species. The reasons for differences in pollinator visitation are discussed. Furthermore, it would be advisable to survey the differences in pollinator composition and abundance between similar plant species within the tribes/families of C. jacea and L. hispidis, for a better understanding of the pollinators' choice for a plant species.
Izvleček		V tej pilotni študiji so avtorji preučevali razliko v vrstni sestavi in vrstnem bogastvu opraševalcev ter njihovo obiskovanje rastlin vrst Centaurea jacea in Leontodon hispidis. V času 15 min so prešteli opraševalce, ki so obiskali rastline na izbranem travniku. Ugotovili so razliko v vrstni sestavi opraševalcev. Na rastlini C, jacea je bila pristona predvsem Apis mellifera, medtem ko so L. hispidis obiskovali predvsem predstavniki družine Syrphidae. Poleg tega je bila zaradi pogostih obiskov osebkov vrste A. mellifera številčnost opraševalcev višja na C. jacea kot na L, hispidis, medtem ko je bila enakomernost višja na L. hispidis. Rastlinski vrsti se v vrstnem bogastvu opraševalcev nista razlikovali. Avtorji razpravijajo o vzrokih za razlike v obiskovanju opraševalcev. Poleg tega bi bilo priporočijivo raziskati razliko v sestavi opraševalcev in njihovi številčnosti med podobnimi vrstami rastlin znotraj plemen/družin C. jacea in L. hispidis, s čimer bi bolj razjasnili izbiro opraševalcev med rastlinskimi vrstami.
Deskriptorji		PLANTS INSECTS POLLEN