Altitudinal filtering of large-tree species explains above-ground biomass variation in an Atlantic Central African rain forest
Patterns in above-ground biomass of tropical forests over short altitudinal gradients are poorly known. The aim of this study was to investigate the variation of above-ground biomass with altitude in old-growth forests and determine the importance of changes in floristic composition as a cause of this variation. We used a dataset from 15 1-ha permanent plots established from lowland (200 m asl) to submontane forests (900 m asl) in the Ngovayang Massif, south-western Cameroon. We analysed variation over altitude in two specific functional traits, the potential maximum tree height and the wood density. Forest above-ground biomass decreased from 500–600 Mg ha−1 in lowland plots to around 260 Mg ha−1 at the highest altitudes. The contribution to above-ground biomass of large-tree species (dbh ≥ 70 cm) decreased with altitude, while the contribution of smaller trees was constant. Contribution of the Fabaceae subfamily Caesalpinioideae decreased with altitude, while those of Clusiaceae, Phyllanthaceae and Burseraceae increased. While potential maximum tree height significantly decreased, wood specific gravity displayed no trend along the gradient. Finally, the decrease in above-ground biomass along the short altitudinal gradient can be at least partially explained by a shift in species composition, with large-tree species being filtered out at the highest altitudes. These results suggest that global change could lead to significant shifts in the properties of montane forests over time.
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dig-cirad-fr-5842022024-01-29T00:15:36Z http://agritrop.cirad.fr/584202/ http://agritrop.cirad.fr/584202/ Altitudinal filtering of large-tree species explains above-ground biomass variation in an Atlantic Central African rain forest. Gonmadje Christelle, Picard Nicolas, Gourlet-Fleury Sylvie, Rejou-Mechain Maxime, Freycon Vincent, Sunderland Terry C.H., McKey Doyle B., Doumenge Charles. 2017. Journal of Tropical Ecology, 33 (2) : 143-154.https://doi.org/10.1017/S0266467416000602 <https://doi.org/10.1017/S0266467416000602> Altitudinal filtering of large-tree species explains above-ground biomass variation in an Atlantic Central African rain forest Gonmadje, Christelle Picard, Nicolas Gourlet-Fleury, Sylvie Rejou-Mechain, Maxime Freycon, Vincent Sunderland, Terry C.H. McKey, Doyle B. Doumenge, Charles eng 2017 Journal of Tropical Ecology K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt forêt tropicale humide altitude biomasse biomasse aérienne des arbres croissance composition botanique changement climatique montagne hauteur Fabaceae Caesalpinioideae Guttiferae Phyllanthaceae http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1373987680230 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_12676 http://aims.fao.org/aos/agrovoc/c_3536 http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_1180 http://aims.fao.org/aos/agrovoc/c_3444 http://aims.fao.org/aos/agrovoc/c_330130 Afrique centrale Cameroun http://aims.fao.org/aos/agrovoc/c_1432 http://aims.fao.org/aos/agrovoc/c_1229 Patterns in above-ground biomass of tropical forests over short altitudinal gradients are poorly known. The aim of this study was to investigate the variation of above-ground biomass with altitude in old-growth forests and determine the importance of changes in floristic composition as a cause of this variation. We used a dataset from 15 1-ha permanent plots established from lowland (200 m asl) to submontane forests (900 m asl) in the Ngovayang Massif, south-western Cameroon. We analysed variation over altitude in two specific functional traits, the potential maximum tree height and the wood density. Forest above-ground biomass decreased from 500–600 Mg ha−1 in lowland plots to around 260 Mg ha−1 at the highest altitudes. The contribution to above-ground biomass of large-tree species (dbh ≥ 70 cm) decreased with altitude, while the contribution of smaller trees was constant. Contribution of the Fabaceae subfamily Caesalpinioideae decreased with altitude, while those of Clusiaceae, Phyllanthaceae and Burseraceae increased. While potential maximum tree height significantly decreased, wood specific gravity displayed no trend along the gradient. Finally, the decrease in above-ground biomass along the short altitudinal gradient can be at least partially explained by a shift in species composition, with large-tree species being filtered out at the highest altitudes. These results suggest that global change could lead to significant shifts in the properties of montane forests over time. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/584202/1/Gonmadje%20et%20al.%202017%20Journal%20Tropical%20Ecology.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1017/S0266467416000602 10.1017/S0266467416000602 info:eu-repo/semantics/altIdentifier/doi/10.1017/S0266467416000602 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1017/S0266467416000602 |
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K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt forêt tropicale humide altitude biomasse biomasse aérienne des arbres croissance composition botanique changement climatique montagne hauteur Fabaceae Caesalpinioideae Guttiferae Phyllanthaceae http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1373987680230 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_12676 http://aims.fao.org/aos/agrovoc/c_3536 http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_1180 http://aims.fao.org/aos/agrovoc/c_3444 http://aims.fao.org/aos/agrovoc/c_330130 http://aims.fao.org/aos/agrovoc/c_1432 http://aims.fao.org/aos/agrovoc/c_1229 K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt forêt tropicale humide altitude biomasse biomasse aérienne des arbres croissance composition botanique changement climatique montagne hauteur Fabaceae Caesalpinioideae Guttiferae Phyllanthaceae http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1373987680230 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_12676 http://aims.fao.org/aos/agrovoc/c_3536 http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_1180 http://aims.fao.org/aos/agrovoc/c_3444 http://aims.fao.org/aos/agrovoc/c_330130 http://aims.fao.org/aos/agrovoc/c_1432 http://aims.fao.org/aos/agrovoc/c_1229 |
spellingShingle |
K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt forêt tropicale humide altitude biomasse biomasse aérienne des arbres croissance composition botanique changement climatique montagne hauteur Fabaceae Caesalpinioideae Guttiferae Phyllanthaceae http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1373987680230 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_12676 http://aims.fao.org/aos/agrovoc/c_3536 http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_1180 http://aims.fao.org/aos/agrovoc/c_3444 http://aims.fao.org/aos/agrovoc/c_330130 http://aims.fao.org/aos/agrovoc/c_1432 http://aims.fao.org/aos/agrovoc/c_1229 K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt forêt tropicale humide altitude biomasse biomasse aérienne des arbres croissance composition botanique changement climatique montagne hauteur Fabaceae Caesalpinioideae Guttiferae Phyllanthaceae http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1373987680230 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_12676 http://aims.fao.org/aos/agrovoc/c_3536 http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_1180 http://aims.fao.org/aos/agrovoc/c_3444 http://aims.fao.org/aos/agrovoc/c_330130 http://aims.fao.org/aos/agrovoc/c_1432 http://aims.fao.org/aos/agrovoc/c_1229 Gonmadje, Christelle Picard, Nicolas Gourlet-Fleury, Sylvie Rejou-Mechain, Maxime Freycon, Vincent Sunderland, Terry C.H. McKey, Doyle B. Doumenge, Charles Altitudinal filtering of large-tree species explains above-ground biomass variation in an Atlantic Central African rain forest |
description |
Patterns in above-ground biomass of tropical forests over short altitudinal gradients are poorly known. The aim of this study was to investigate the variation of above-ground biomass with altitude in old-growth forests and determine the importance of changes in floristic composition as a cause of this variation. We used a dataset from 15 1-ha permanent plots established from lowland (200 m asl) to submontane forests (900 m asl) in the Ngovayang Massif, south-western Cameroon. We analysed variation over altitude in two specific functional traits, the potential maximum tree height and the wood density. Forest above-ground biomass decreased from 500–600 Mg ha−1 in lowland plots to around 260 Mg ha−1 at the highest altitudes. The contribution to above-ground biomass of large-tree species (dbh ≥ 70 cm) decreased with altitude, while the contribution of smaller trees was constant. Contribution of the Fabaceae subfamily Caesalpinioideae decreased with altitude, while those of Clusiaceae, Phyllanthaceae and Burseraceae increased. While potential maximum tree height significantly decreased, wood specific gravity displayed no trend along the gradient. Finally, the decrease in above-ground biomass along the short altitudinal gradient can be at least partially explained by a shift in species composition, with large-tree species being filtered out at the highest altitudes. These results suggest that global change could lead to significant shifts in the properties of montane forests over time. |
format |
article |
topic_facet |
K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt forêt tropicale humide altitude biomasse biomasse aérienne des arbres croissance composition botanique changement climatique montagne hauteur Fabaceae Caesalpinioideae Guttiferae Phyllanthaceae http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_316 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_1373987680230 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_15945 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_12676 http://aims.fao.org/aos/agrovoc/c_3536 http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_1180 http://aims.fao.org/aos/agrovoc/c_3444 http://aims.fao.org/aos/agrovoc/c_330130 http://aims.fao.org/aos/agrovoc/c_1432 http://aims.fao.org/aos/agrovoc/c_1229 |
author |
Gonmadje, Christelle Picard, Nicolas Gourlet-Fleury, Sylvie Rejou-Mechain, Maxime Freycon, Vincent Sunderland, Terry C.H. McKey, Doyle B. Doumenge, Charles |
author_facet |
Gonmadje, Christelle Picard, Nicolas Gourlet-Fleury, Sylvie Rejou-Mechain, Maxime Freycon, Vincent Sunderland, Terry C.H. McKey, Doyle B. Doumenge, Charles |
author_sort |
Gonmadje, Christelle |
title |
Altitudinal filtering of large-tree species explains above-ground biomass variation in an Atlantic Central African rain forest |
title_short |
Altitudinal filtering of large-tree species explains above-ground biomass variation in an Atlantic Central African rain forest |
title_full |
Altitudinal filtering of large-tree species explains above-ground biomass variation in an Atlantic Central African rain forest |
title_fullStr |
Altitudinal filtering of large-tree species explains above-ground biomass variation in an Atlantic Central African rain forest |
title_full_unstemmed |
Altitudinal filtering of large-tree species explains above-ground biomass variation in an Atlantic Central African rain forest |
title_sort |
altitudinal filtering of large-tree species explains above-ground biomass variation in an atlantic central african rain forest |
url |
http://agritrop.cirad.fr/584202/ http://agritrop.cirad.fr/584202/1/Gonmadje%20et%20al.%202017%20Journal%20Tropical%20Ecology.pdf |
work_keys_str_mv |
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