Combining Traits and Density to Model Recruitment of Sessile
We propose an integrative approach that explains patterns of recruitment to adult populations in sessile organisms by considering the numbers of individuals and their body size. A recruitment model, based on a small number of parameters, was developed for sessile organisms and tested using the barna...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.646.912 2023-05-15T17:34:16+02:00 Combining Traits and Density to Model Recruitment of Sessile Luis Giménez* Stuart The Pennsylvania State University CiteSeerX Archives 2013 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.912 http://www.bangor.ac.uk/oceansciences/staff/pdf/Jenkins/2092.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.912 http://www.bangor.ac.uk/oceansciences/staff/pdf/Jenkins/2092.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.bangor.ac.uk/oceansciences/staff/pdf/Jenkins/2092.pdf text 2013 ftciteseerx 2016-01-08T16:12:55Z We propose an integrative approach that explains patterns of recruitment to adult populations in sessile organisms by considering the numbers of individuals and their body size. A recruitment model, based on a small number of parameters, was developed for sessile organisms and tested using the barnacle Semibalanus balanoides, a marine invertebrate inhabiting North Atlantic intertidal shores. Incorporating barnacle body size improved model fit beyond that based on density alone, showing that growth played an important role in how resource limitation affected survival. Our approach uncovered the following: First, changes in the shape of the recruitment curve resulted from the balance between individual growth and mortality. Second, recruitment was limited by the least plastic trait used to characterise body size, operculum area. Basal area, a trait that responded to increases in barnacle density, did not contribute significantly to explain patterns of recruitment. Third, some temporal variation is explained by changes in the amount of space occupied by shells of dead barnacles: at high cover barnacles are densely packed and these shells remain long after death. Fourth, seasonal variation and spatial variation in survival can be separated from that resulting from resource limitation; survival was predicted for two different shores and four sampling times using a single recruitment model. We conclude that applying this integrative approach to recruitment will lead to a considerable advance in understanding patterns of mortality of early stages of sessile organisms. Text North Atlantic Unknown |
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description |
We propose an integrative approach that explains patterns of recruitment to adult populations in sessile organisms by considering the numbers of individuals and their body size. A recruitment model, based on a small number of parameters, was developed for sessile organisms and tested using the barnacle Semibalanus balanoides, a marine invertebrate inhabiting North Atlantic intertidal shores. Incorporating barnacle body size improved model fit beyond that based on density alone, showing that growth played an important role in how resource limitation affected survival. Our approach uncovered the following: First, changes in the shape of the recruitment curve resulted from the balance between individual growth and mortality. Second, recruitment was limited by the least plastic trait used to characterise body size, operculum area. Basal area, a trait that responded to increases in barnacle density, did not contribute significantly to explain patterns of recruitment. Third, some temporal variation is explained by changes in the amount of space occupied by shells of dead barnacles: at high cover barnacles are densely packed and these shells remain long after death. Fourth, seasonal variation and spatial variation in survival can be separated from that resulting from resource limitation; survival was predicted for two different shores and four sampling times using a single recruitment model. We conclude that applying this integrative approach to recruitment will lead to a considerable advance in understanding patterns of mortality of early stages of sessile organisms. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Luis Giménez* Stuart |
spellingShingle |
Luis Giménez* Stuart Combining Traits and Density to Model Recruitment of Sessile |
author_facet |
Luis Giménez* Stuart |
author_sort |
Luis Giménez* Stuart |
title |
Combining Traits and Density to Model Recruitment of Sessile |
title_short |
Combining Traits and Density to Model Recruitment of Sessile |
title_full |
Combining Traits and Density to Model Recruitment of Sessile |
title_fullStr |
Combining Traits and Density to Model Recruitment of Sessile |
title_full_unstemmed |
Combining Traits and Density to Model Recruitment of Sessile |
title_sort |
combining traits and density to model recruitment of sessile |
publishDate |
2013 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.912 http://www.bangor.ac.uk/oceansciences/staff/pdf/Jenkins/2092.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://www.bangor.ac.uk/oceansciences/staff/pdf/Jenkins/2092.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.646.912 http://www.bangor.ac.uk/oceansciences/staff/pdf/Jenkins/2092.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766133035330174976 |