Výsledky vyhledávání - "Juan M. Posada"

Akademický článek

Wood density is related to aboveground biomass and productivity along a successional gradient in upper Andean tropical forests

Autor: Dennis Castillo-Figueroa, Andrés González-Melo, Juan M. Posada

Publikováno v: Frontiers in Plant Science, Vol 14 (2023)

Wood density (WD) is a key functional trait related to ecological strategies and ecosystem carbon dynamics. Despite its importance, there is a considerable lack of information on WD in tropical Andean forests, particularly regarding its relationship

Externí odkaz: https://doaj.org/article/475e7a00a7a94628a0de488de4073da1

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Little trace of floristic homogenization in peri‐urban Andean secondary forests despite high anthropogenic transformation

Autor: Beatriz Salgado-Negret, Natalia Norden, María Ángela Echeverry-Galvis, Ana Belén Hurtado-M, Juan M. Posada, Juan Camilo Muñoz

Publikováno v: Journal of Ecology. 109:1468-1478

The ubiquity of anthropogenic pressures in tropical regions is the primary threat to biodiversity, and one of the most significant challenges humanity is currently facing (Lewis et al., 2015). Hope is set on regrowing secondary forests, which may ser

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::129e30b985ae0db5afe8a3d4c411b504
https://doi.org/10.1111/1365-2745.13570

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Diverging functional strategies but high sensitivity to an extreme drought in tropical dry forests

Publikováno v: Ecology Letters. 24:451-463

Extreme drought events have negative effects on forest diversity and functioning. At the species level, however, these effects are still unclear, as species vary in their response to drought through specific functional trait combinations. We used lon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc5d08fd3efdba6ed80904baaec0c102
https://doi.org/10.1111/ele.13659

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Can light‐saturated photosynthesis in lowland tropical forests be estimated by one light level?

Autor: Juan M. Posada, Leandro Van Langenhove, Jérôme Chave, Lore T. Verryckt, Philippe Ciais, Sara Vicca, Sabrina Coste, Michael Obersteiner, Elodie A. Courtois, David S. Ellsworth, Josep Peñuelas, Ivan A. Janssens, Clément Stahl

Publikováno v: Biotropica
Biotropica, 2020, ⟨10.1111/btp.12817⟩
Biotropica, Wiley, 2020, ⟨10.1111/btp.12817⟩
Biotropica (0006-3606) (Wiley), 2020-11, Vol. 52, N. 6, P. 1183-1193

Leaf-level net photosynthesis (An) estimates and associated photosynthetic parameters are crucial for accurately parameterizing photosynthesis models. For tropical forests, such data are poorly available and collected at variable light conditions. To

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ce2694b735657413d6e48265282fccb
https://doi.org/10.1111/btp.12817

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Radial variations in wood functional traits in a rain forest from eastern Amazonia

Autor: Juan M. Posada, Romain Lehnebach, Bruno Clair, Jacques Beauchêne, Andrés González-Melo, Katherine Rivera, Sébastien Levionnois

Publikováno v: Trees
Trees-Structure and Function
Trees-Structure and Function, Springer Verlag, In press, ⟨10.1007/s00468-021-02229-1⟩
Trees-Structure and Function, 2022, 36, pp.569-581. ⟨10.1007/s00468-021-02229-1⟩

International audience; Trees can modify their wood structure in response to changes in mechanical, hydraulic and storage demands during their life-cycles. Thus, examining radial variations in wood traits is important to expand our knowledge of tree

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d38305d07f1216a7e4c3d1b014745ffa
http://agritrop.cirad.fr/599748/

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Non-structural carbohydrate concentrations in woody organs, but not leaves, of temperate and tropical tree angiosperms are independent of the ‘fast-slow’ plant economic spectrum

Autor: Günter Hoch, Jorge Andres Ramirez, Carlos A. Sierra, Björn Reu, I T Handa, Christian Messier, Dylan Craven, Juan M. Posada

Publikováno v: bioRxiv

SummaryBackground and AimsCarbohydrate reserves play a vital role in plant survival during periods of negative carbon balance. Considering active storage of reserves, there is a trade-off between carbon allocation to growth and to reserves and defens

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15fb6ba6573ae75b357cd894f2e0aba2
https://doi.org/10.1101/2021.04.20.440698

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The predictive power of wood traits on species mortality change during tree development

Autor: Andrés González-Melo, Juan M. Posada

One foundational assumption of trait-based ecology is that functional traits can predict species demography. Yet, in general, the links between traits and demographic rates are not as strong as usually assumed. These weak associations may be due to t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6036052c67c0b17e89140afeb0ceefb6
https://doi.org/10.5194/egusphere-egu21-618

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Coping with branch excision when measuring leaf net photosynthetic rates in a lowland tropical forest

Autor: Sabrina Coste, Ivan A. Janssens, Elodie A. Courtois, David S. Ellsworth, Clément Stahl, Philippe Ciais, Jérôme Chave, Juan M. Posada, Josep Peñuelas, Lore T. Verryckt, Sara Vicca, Michael Obersteiner, Leandro Van Langenhove

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Biotropica
Biotropica, 2020, 52 (4), pp.608-615. ⟨10.1111/btp.12774⟩
Biotropica, Wiley, 2020, 52 (4), pp.608-615. ⟨10.1111/btp.12774⟩
Biotropica (0006-3606) (Wiley), 2020-07, Vol. 52, N. 4, P. 608-615
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio EdocUR-U. Rosario
Universidad del Rosario
instacron:Universidad del Rosario

Measuring leaf gas exchange from canopy leaves is fundamental for our understanding of photosynthesis and for a realistic representation of carbon uptake in vegetation models. Since canopy leaves are often difficult to reach, especially in tropical f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba6a7b67c20ce667bac8beaac3822753
http://hdl.handle.net/2072/441765

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