title: Cockles, barnacles and ascidians compose a subtidal facilitation cascade with multiple hierarchical levels of foundation species
metadata.name: dc.contributor.author
metadata.value: Yakovis, Eugeniy
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Artemieva, Anna
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2017-10-23T12:50:45Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2017-10-23T12:50:45Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2017-03-22
metadata.lang: -
metadata.name: dc.identifier
metadata.value: 10.1038/s41598-017-00260-2
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Yakovis E., Artemieva A. Cockles, barnacles and ascidians compose a subtidal facilitation cascade with multiple hierarchical levels of foundation species. Scientific Reports 7: 237 (2017)
metadata.lang: en_GB
metadata.name: dc.identifier.issn
metadata.value: 10.1038/s41598-017-00260-2
metadata.lang: -
metadata.name: dc.identifier.issn
metadata.value: 10.1038/s41598-017-00260-2
metadata.lang: -
metadata.name: dc.identifier.other
metadata.value: 10.1038/s41598-017-00260-2
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: https://www.nature.com/articles/s41598-017-00260-2
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/8580
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Facilitation cascades occur when multiple foundation species in a community are involved in a hierarchy of positive interactions, and consist of a primary facilitator which positively affects secondary facilitators, each supporting a suit of dependent species. There is no theoretical limit to the number of levels in a facilitation cascade, yet the existence of more than two has rarely been examined. We manipulated biogenic substrate produced by a primary facilitator (cockle shells) and a secondary facilitator (barnacles and their empty tests) in a space-limited subtidal community to test the hypothesis that solitary ascidians would be the third-level facilitator. In the field, most ascidians were found on barnacles, and most barnacles occupied cockle shells. To produce this pattern, barnacles could nurse ascidians (a longer 'facilitation chain') or outcompete them from cockle shells (a shorter chain). Experimental results clearly supported the nursing hypothesis providing evidence for a facilitation cascade with three hierarchical levels of foundation species. Our findings confirm that like predation and competition, positive interspecific interactions nest into multi-tier hierarchies with numerous levels. While the number of foundation species should increase community stability and resilience as it increases diversity and reduces environmental stress, facilitation chain length may have the opposite effect.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: This research was supported by Russian Foundation for Basic Research grants 02-04-50020, 05-04-48927, 05-04-63041, 06-04-63077, 07-04-10075, 08-04-01373, 08-04-10109, 09-04-10092, 10-04-10094, 11-04-01248, 11-04-10031, 12-04-10059, 13-04-10178, 14-04-00972, 14-04-10124 and 17-04-00651 to E. Yakovis.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: Springer Nature
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Biodiversity, Community ecology, the White Sea
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Cockles, barnacles and ascidians compose a subtidal facilitation cascade with multiple hierarchical levels of foundation species
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: Yakovis Artemieva 2017.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/8580/1/Yakovis%20Artemieva%202017.pdf
resources.format: Adobe PDF
resources.size: 1,29 MB
resources.filename: 41598_2017_260_MOESM1_ESM.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/8580/2/41598_2017_260_MOESM1_ESM.pdf
resources.format: Adobe PDF
resources.size: 5,04 MB