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Article: Seasonal variation in algal species richness and abundance in the presence of molluscan herbivores on a tropical rocky shore

TitleSeasonal variation in algal species richness and abundance in the presence of molluscan herbivores on a tropical rocky shore
Authors
KeywordsAlgae
Herbivore
Seasonal Change
Tropical Shore
Issue Date1993
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembe
Citation
Journal Of Experimental Marine Biology And Ecology, 1993, v. 167 n. 2, p. 261-275 How to Cite?
AbstractSeasonal variation in species and percentage cover of macroalgae was investigated over a 15-month period on a semi-exposed tropical rocky shore. Cages were used to manipulate herbivore access in mid and low shore areas. Algal species richness and abundance showed a marked seasonal pattern, peaking during the winter months and decreasing in the summer. At both mid and low shore the number of species and abundance of algae was greatest in herbivore exclusion treatments and the effect was more pronounced in the low shore where there was a consistent difference between treatments throughout the year. In the mid shore there was a difference in the cover of algae between treatments in the winter months only; for the remaining period there was little difference. Algal abundance and species numbers declined dramatically in all treatments as the temperature increased with the onset of summer, although the decline was less pronounced in the lower shore treatments. The results indicate that at higher tidal levels physical factors influence algal abundance to a greater extent than lower on the shore where herbivory is important, although lower on the shore the physical extremes of a tropical summer are also strong limiting factors.
Persistent Identifierhttp://hdl.handle.net/10722/178553
ISSN
2015 Impact Factor: 1.796
2015 SCImago Journal Rankings: 1.029
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWilliams, GAen_US
dc.date.accessioned2012-12-19T09:48:20Z-
dc.date.available2012-12-19T09:48:20Z-
dc.date.issued1993en_US
dc.identifier.citationJournal Of Experimental Marine Biology And Ecology, 1993, v. 167 n. 2, p. 261-275en_US
dc.identifier.issn0022-0981en_US
dc.identifier.urihttp://hdl.handle.net/10722/178553-
dc.description.abstractSeasonal variation in species and percentage cover of macroalgae was investigated over a 15-month period on a semi-exposed tropical rocky shore. Cages were used to manipulate herbivore access in mid and low shore areas. Algal species richness and abundance showed a marked seasonal pattern, peaking during the winter months and decreasing in the summer. At both mid and low shore the number of species and abundance of algae was greatest in herbivore exclusion treatments and the effect was more pronounced in the low shore where there was a consistent difference between treatments throughout the year. In the mid shore there was a difference in the cover of algae between treatments in the winter months only; for the remaining period there was little difference. Algal abundance and species numbers declined dramatically in all treatments as the temperature increased with the onset of summer, although the decline was less pronounced in the lower shore treatments. The results indicate that at higher tidal levels physical factors influence algal abundance to a greater extent than lower on the shore where herbivory is important, although lower on the shore the physical extremes of a tropical summer are also strong limiting factors.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembeen_US
dc.relation.ispartofJournal of Experimental Marine Biology and Ecologyen_US
dc.subjectAlgaeen_US
dc.subjectHerbivoreen_US
dc.subjectSeasonal Changeen_US
dc.subjectTropical Shoreen_US
dc.titleSeasonal variation in algal species richness and abundance in the presence of molluscan herbivores on a tropical rocky shoreen_US
dc.typeArticleen_US
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_US
dc.identifier.authorityWilliams, GA=rp00804en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/0022-0981(93)90034-Len_US
dc.identifier.scopuseid_2-s2.0-0027498804en_US
dc.identifier.volume167en_US
dc.identifier.issue2en_US
dc.identifier.spage261en_US
dc.identifier.epage275en_US
dc.identifier.isiWOS:A1993LA47600007-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridWilliams, GA=7406082821en_US

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