Change search
ReferencesLink to record
Permanent link

Direct link
Physical and biological control of fucoid recruitment in range edge and range centre populations
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM). School of Ocean Sciences, Bangor University, UK.
2015 (English)In: Marine Ecology Progress Series, ISSN 0171-8630, E-ISSN 1616-1599, Vol. 518, 85-94 p.Article in journal (Refereed) Published
Abstract [en]

The structure of rocky shore assemblages is determined to a large extent by the interaction between abiotic and biotic processes. Understanding of the strength and interactive nature of these processes over different spatial and temporal scales provides insight into key structuring mechanisms and clarifies what sets species' distributions. Here we examine the potential interactive effect of physical environment (insolation stress) and grazing pressure on recruitment success of fucoid species (Fucus spp.) in North Wales and Portugal, in order to understand patterns of distribution at the centre and equatorward edge of their range. Contrary to expectations, amelioration of the physical environment through reduction of insolation stress did not improve recruitment in either geographical region. Grazing activity of patellid limpets was found to be an important process regulating fucoid recruitment only on northern European shores. The top-down control of fucoid recruitment at the northern latitude was apparent, even at half the normal densities of patellid limpets. The use of reduced light levels and reduced grazing pressure in southern regions was expected to improve fucoid recruitment, but results indicate amelioration of physical and biological pressures cannot compensate for an inherently low supply of propagules. Our study confirms that strong top-down control by grazers (Patella spp.) can directly determine the distribution and abundance of fucoid algae in core areas of its range, but toward the range edge factors other than those examined are responsible for low recruitment and, ultimately, the observed decline in fucoid abundance in southern European regions.

Place, publisher, year, edition, pages
2015. Vol. 518, 85-94 p.
Keyword [en]
Reproductive success, Geographical differentiation, Biotic stress, Grazing pressure, Abiotic stress, Solar radiation, Fucus spiralis, Fucus vesiculosus, Patella spp
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:su:diva-113951DOI: 10.3354/meps11016ISI: 000347720100006OAI: diva2:790057


Available from: 2015-02-23 Created: 2015-02-16 Last updated: 2015-02-23Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Ferreira, João G.
By organisation
Department of Applied Environmental Science (ITM)
In the same journal
Marine Ecology Progress Series
Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 52 hits
ReferencesLink to record
Permanent link

Direct link