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Tree demographic strategies largely overlap across succession in Neotropical wet and dry forest communities.

Authors :
Schorn, Markus E.
Kambach, Stephan
Chazdon, Robin L.
Craven, Dylan
Farrior, Caroline E.
Meave, Jorge A.
Muñoz, Rodrigo
van Breugel, Michiel
Amissah, Lucy
Bongers, Frans
Hérault, Bruno
Jakovac, Catarina C.
Norden, Natalia
Poorter, Lourens
van der Sande, Masha T.
Wirth, Christian
Delgado, Diego
Dent, Daisy H.
DeWalt, Saara J.
Dupuy, Juan M.
Source :
Ecology. Jul2024, Vol. 105 Issue 7, p1-16. 16p.
Publication Year :
2024

Abstract

Secondary tropical forests play an increasingly important role in carbon budgets and biodiversity conservation. Understanding successional trajectories is therefore imperative for guiding forest restoration and climate change mitigation efforts. Forest succession is driven by the demographic strategies—combinations of growth, mortality and recruitment rates—of the tree species in the community. However, our understanding of demographic diversity in tropical tree species stems almost exclusively from old‐growth forests. Here, we assembled demographic information from repeated forest inventories along chronosequences in two wet (Costa Rica, Panama) and two dry (Mexico) Neotropical forests to assess whether the ranges of demographic strategies present in a community shift across succession. We calculated demographic rates for >500 tree species while controlling for canopy status to compare demographic diversity (i.e., the ranges of demographic strategies) in early successional (0–30 years), late successional (30–120 years) and old‐growth forests using two‐dimensional hypervolumes of pairs of demographic rates. Ranges of demographic strategies largely overlapped across successional stages, and early successional stages already covered the full spectrum of demographic strategies found in old‐growth forests. An exception was a group of species characterized by exceptionally high mortality rates that was confined to early successional stages in the two wet forests. The range of demographic strategies did not expand with succession. Our results suggest that studies of long‐term forest monitoring plots in old‐growth forests, from which most of our current understanding of demographic strategies of tropical tree species is derived, are surprisingly representative of demographic diversity in general, but do not replace the need for further studies in secondary forests. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00129658
Volume :
105
Issue :
7
Database :
Academic Search Index
Journal :
Ecology
Publication Type :
Academic Journal
Accession number :
178178807
Full Text :
https://doi.org/10.1002/ecy.4321