Please use this identifier to cite or link to this item:

Title: Modulation of di erent kelp life stages by herbivory: compensatory growth versus population decimation
Authors: Franco, J
Wernberg, T
Bertocci, I
Jacinto, D
Maranhão, P
Pereira, T
Martinez, B
Arenas, F
Sousa-Pinto, I
Tuya, F
Issue Date: 2017
Publisher: Marine Biology
Abstract: Partitioning the e ects of herbivory on di erent life stages of primary producers is key to understanding the population-wide consequences of herbivory. We assessed the performance of microscopic (MiS <1 mm) juveniles, macroscopic (MaS) juveniles and adult kelp (Laminaria ochroleuca) under contrasting herbivory regimes through a herbivore exclusion eld experiment. The abundance of MiS and the survival of MaS decreased by 67 and 63%, respec- tively, when herbivorous shes and sea urchins were present. Blade growth (linear and area) of adult kelp displayed con- trasting patterns under herbivore pressure: a 60% increase and a 46% decrease, respectively. These results indicate that while herbivory severely reduces juvenile survival, it may also induce compensatory growth (measured as linear growth) in adult kelp. In summary, we here demonstrate how herbivory a ects all sporophyte life stages of the kelp L. ochroleuca. This is likely to have important implications for situations where historical patterns of herbivore presence and herbivory are changing, such as is increasingly the case in many temperate regions due to warming around the world.
URI: 10.1007/s00227-017-3196-8
Type: article
Appears in Collections:BIO - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

Files in This Item:

File Description SizeFormat
2017 Franco et al.pdf1.17 MBAdobe PDFView/OpenRestrict Access. You can Request a copy!
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Dspace Dspace
DSpace Software, version 1.6.2 Copyright © 2002-2008 MIT and Hewlett-Packard - Feedback
UEvora B-On Curriculum DeGois