Vis enkel innførsel

dc.contributor.authorSteyaert, Sam
dc.contributor.authorHertel, Anne Gabriela
dc.contributor.authorSwenson, Jon
dc.date.accessioned2020-05-29T11:21:25Z
dc.date.available2020-05-29T11:21:25Z
dc.date.created2019-12-17T12:57:19Z
dc.date.issued2019
dc.identifier.citationSteyaert, S. M. J. G., Hertel, A. G. & Swenson, J. E. (2019). Endozoochory by brown bears stimulates germination in bilberry. Wildlife Biology, 1, 1-5. doi:en_US
dc.identifier.issn0909-6396
dc.identifier.urihttps://hdl.handle.net/11250/2656021
dc.description.abstractThe understory vegetation of the Eurasian boreal forest is dominated by several ericaceous species (e.g. bilberry Vaccinium myrtillus). These species invest large amounts of energy in their sexual reproduction by producing seed-containing berries, which are apparent adaptations for endozoochory. Their seedlings are, however, almost never found in the wild, and they reproduce virtually exclusively through clones. Brown bears Ursus arctos consume enormous amounts of ericaceous berries (predominantly bilberry in central Scandinavia) during hyperphagia, and may facilitate sexual reproduction in such species. If ericaceous species would benefit from endozoochory by brown bears, one would predict that endozoochory would have no negative impacts on germination. We experimentally evaluated this prediction using germination trials under controlled conditions of bilberry seeds that were 1) extracted from brown bear feces, 2) extracted from ripe berries and 3) contained in berries. Using time-to-event analyses, we showed that passing the gut by itself did not stimulate or limit germination. However, seeds that were released from the berries germinated about one month earlier compared to seeds contained in berries. This implies that being released from a fruit, for example through endozoochory, can have a large temporal germination and growth advantage, especially in northern ecosystems a with short growing season.en_US
dc.language.isoengen_US
dc.publisherNordic Board for Wildlife Researchen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleEndozoochory by brown bears stimulates germination in bilberryen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2019 The Author(s)en
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Plantefysiologi: 492en_US
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Zoofysiologi og komparativ fysiologi: 483en_US
dc.source.pagenumber5en_US
dc.source.journalWildlife Biologyen_US
dc.source.issue1en_US
dc.identifier.doi10.2981/wlb.00573
dc.identifier.cristin1761885
dc.relation.projectEC/H2020/793077en_US


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel

Navngivelse 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Navngivelse 4.0 Internasjonal