Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation
We present a comparative analysis of the biomass dynamics of the two dominant Spartina plant species in South West Atlantic saltmarshes: Spartina densiflora Brong. (high intertidal zone) and Spartina alterniflora Loesel. (mid-low intertidal zone). We assessed aboveground biomass, live: dead ratios,...
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todo:paper_03043770_v120_nPB_p201_Montemayor2023-10-03T15:20:01Z Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation Montemayor, D.I. Addino, M. Valiñas, M. Fanjul, E. Alvarez, M.F. Iribarne, O.O. Aboveground biomass Mortality Primary production Spartina alterniflora Spartina densiflora aboveground biomass carbon cycle dominance intertidal environment net primary production primary production saltmarsh seagrass Atlantic Ocean Atlantic Ocean (Southwest) Spartina Spartina alterniflora Spartina densiflora We present a comparative analysis of the biomass dynamics of the two dominant Spartina plant species in South West Atlantic saltmarshes: Spartina densiflora Brong. (high intertidal zone) and Spartina alterniflora Loesel. (mid-low intertidal zone). We assessed aboveground biomass, live: dead ratios, net production, mortality and turnover rates, and then used this information to understand if saltmarshes dominated by one or the other Spartina species have different ecosystemic roles in the recycling of organic matter. Through field sampling we found that S. densiflora had larger live, dead and total biomass than S. alterniflora. When comparing within each species, S. alterniflora had larger live than dead biomass for most of the year, while S. densiflora had more dead than live biomass. Through the Weigert and Evans (1964) net aerial primary production (NAPP) estimating method we found that S. densiflora had larger annual NAPP, annual mortality and live turnover rates than S. alterniflora. In both species the amount of NAPP was similar to the amount of annual mortality. These results suggest that S. densiflora aboveground biomass is a carbon accumulation zone, while S. alterniflora is a carbon recycling one. © 2014 Elsevier B.V. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03043770_v120_nPB_p201_Montemayor |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Aboveground biomass Mortality Primary production Spartina alterniflora Spartina densiflora aboveground biomass carbon cycle dominance intertidal environment net primary production primary production saltmarsh seagrass Atlantic Ocean Atlantic Ocean (Southwest) Spartina Spartina alterniflora Spartina densiflora |
| spellingShingle |
Aboveground biomass Mortality Primary production Spartina alterniflora Spartina densiflora aboveground biomass carbon cycle dominance intertidal environment net primary production primary production saltmarsh seagrass Atlantic Ocean Atlantic Ocean (Southwest) Spartina Spartina alterniflora Spartina densiflora Montemayor, D.I. Addino, M. Valiñas, M. Fanjul, E. Alvarez, M.F. Iribarne, O.O. Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation |
| topic_facet |
Aboveground biomass Mortality Primary production Spartina alterniflora Spartina densiflora aboveground biomass carbon cycle dominance intertidal environment net primary production primary production saltmarsh seagrass Atlantic Ocean Atlantic Ocean (Southwest) Spartina Spartina alterniflora Spartina densiflora |
| description |
We present a comparative analysis of the biomass dynamics of the two dominant Spartina plant species in South West Atlantic saltmarshes: Spartina densiflora Brong. (high intertidal zone) and Spartina alterniflora Loesel. (mid-low intertidal zone). We assessed aboveground biomass, live: dead ratios, net production, mortality and turnover rates, and then used this information to understand if saltmarshes dominated by one or the other Spartina species have different ecosystemic roles in the recycling of organic matter. Through field sampling we found that S. densiflora had larger live, dead and total biomass than S. alterniflora. When comparing within each species, S. alterniflora had larger live than dead biomass for most of the year, while S. densiflora had more dead than live biomass. Through the Weigert and Evans (1964) net aerial primary production (NAPP) estimating method we found that S. densiflora had larger annual NAPP, annual mortality and live turnover rates than S. alterniflora. In both species the amount of NAPP was similar to the amount of annual mortality. These results suggest that S. densiflora aboveground biomass is a carbon accumulation zone, while S. alterniflora is a carbon recycling one. © 2014 Elsevier B.V. |
| format |
JOUR |
| author |
Montemayor, D.I. Addino, M. Valiñas, M. Fanjul, E. Alvarez, M.F. Iribarne, O.O. |
| author_facet |
Montemayor, D.I. Addino, M. Valiñas, M. Fanjul, E. Alvarez, M.F. Iribarne, O.O. |
| author_sort |
Montemayor, D.I. |
| title |
Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation |
| title_short |
Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation |
| title_full |
Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation |
| title_fullStr |
Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation |
| title_full_unstemmed |
Biomass dynamics of the two dominant SW Atlantic Spartina species and its implications on the saltmarsh organic matter accumulation/exportation |
| title_sort |
biomass dynamics of the two dominant sw atlantic spartina species and its implications on the saltmarsh organic matter accumulation/exportation |
| url |
http://hdl.handle.net/20.500.12110/paper_03043770_v120_nPB_p201_Montemayor |
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1807314896673570816 |