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160113s2014 xx |||||o 00| ||eng c |
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|a (DE-627)JST097779253
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|a (JST)24363933
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a ORDOÑEZ, ALEXANDRA
|e verfasserin
|4 aut
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| 245 |
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|a Effects of Ocean Acidification on Population Dynamics and Community Structure of Crustose Coralline Algae
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a Computermedien
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|2 rdamedia
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|a Online-Ressource
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|a Calcification and growth of crustose coralline algae (CCA) are affected by elevated seawater pCO2 and associated changes in carbonate chemistry. However, the effects of ocean acidification (OA) on population and community-level responses of CCA have barely been investigated. We explored changes in community structure and population dynamics (size structure and reproduction) of CCA in response to OA. Recruited from an experimental flow-through system, CCA settled onto the walls of plastic aquaria and developed under exposure to one of three pCO2 treatments (control [present day, 389 ± 6 ppm CO2], medium [753 ± 11 ppm], and high [1267 ± 19 ppm]). Elevated pCO2 reduced total CCA abundance and affected community structure, in particular the density of the dominant species Pneophyllum sp. and Porolithon onkodes. Meanwhile, the relative abundance of P. onkodes declined from 24% under control CO2 to 8.3% in high CO2 (65% change), while the relative abundance of Pneophyllum sp. remained constant. Population size structure of P. onkodes differed significantly across treatments, with fewer larger individuals under high CO2. In contrast, the population size structure and number of reproductive structures (conceptacles) per crust of Pneophyllum sp. was similar across treatments. The difference in the magnitude of the response of species abundance and population size structure between species may have the potential to induce species composition changes in the future. These results demonstrate that the impacts of OA on key coral reef builders go beyond declines in calcification and growth, and suggest important changes to aspects of population dynamics and community ecology.
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|a Copyright © 2014 Marine Biological Laboratory
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Botany
|x Marine botany
|x Phycology
|x Algae
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geochemistry
|x Ocean acidification
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| 650 |
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4 |
|a Biological sciences
|x Ecology
|x Population ecology
|x Synecology
|x Habitats
|x Aquatic habitats
|x Coral reefs
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| 650 |
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4 |
|a Mathematics
|x Pure mathematics
|x Discrete mathematics
|x Graph theory
|x Network theory
|x Community structure
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Developmental biology
|x Cell fusion
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Landforms
|x Coastal landforms
|x Coastal barriers
|x Reefs
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Hydrology
|x Water
|x Saltwater
|x Sea water
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| 650 |
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4 |
|a Social sciences
|x Population studies
|x Population dynamics
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| 650 |
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4 |
|a Biological sciences
|x Ecology
|x Population ecology
|x Synecology
|x Biocenosis
|x Aquatic communities
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Cytology
|x Cell biology
|x Cells
|x Spores
|x RESEARCH PAPERS
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|a research-article
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1 |
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|a DOROPOULOS, CHRISTOPHER
|e verfasserin
|4 aut
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1 |
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|a DIAZ-PULIDO, GUILLERMO
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Biological Bulletin
|d University of Chicago Press
|g 226(2014), 3, Seite 255-268
|w (DE-627)33343854X
|w (DE-600)2056482-X
|x 19398697
|7 nnns
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| 773 |
1 |
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|g volume:226
|g year:2014
|g number:3
|g pages:255-268
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|u https://www.jstor.org/stable/24363933
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|d 226
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|h 255-268
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