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Warmer climate threatens the occurrence of giant trees in the Amazon basin

Giant trees in the Amazon serve as critical carbon sinks and underpin diverse forest ecosystems. Yet, these emergent giants are increasingly vulnerable to climatic change, jeopardizing their distribution and ecological niches. Here, we integrate …

Book Review: Guide to Amazonian Fruits, Seeds & Seedlings

In an era when tropical forest regeneration, seedling ecology, and restoration science have become central to biodiversity conservation, Guide to Amazonian Fruits, Seeds & Seedlings offers a long-needed reference for researchers and practitioners …

Modeling the current distribution of Pouteria decorticans (Sapotaceae) in the Amazon Basin

_Pouteria decorticans_ is an Amazonian canopy tree whose distribution, ecological amplitude, and environmental drivers remain poorly known due to sparse and uneven botanical sampling across the basin. Here, we compile and validate all available …

Exploring the potential of field spectroscopy for tree species identification in different Amazonian forest ecosystems

Species identification in Amazonian forest inventories is challenging due to a shortage of taxonomists, high biodiversity, and morphological similarities leading to taxonomic errors. Full-range spectroscopy (350–2500 nm) is a promising tool for …

Next-generation specimen digitization: capturing reflectance spectra from the worlds herbaria for modeling plant biology across time, space, and taxa

Spectral reflectance measured from herbarium specimens represents a potentially vast source of information relevant to plant taxon identification and functional traits, which has inspired many laboratories world-wide to initiate next-generation …

Copaifera ferrazii (Leguminosae: Detarioideae), a new Amazonian species from the eastern Madeira River Basin, Brazil

*Copaifera ferrazii* Carmo is described and illustrated as a new tree species from the southeast of Amazonas state, in the Brazilian Amazon. In foliage characters, the new species most resembles three congeners: *C. oblongifolia* (Amazon and Central …

Ecclinusa nervosa (Sapotaceae, Chrysophylloideae), a New Species Discovered in Central Amazonia

A new tree species of *Ecclinusa* (Sapotaceae, Chrysophylloideae) from Central Amazonia is described and illustrated. It occurs in non-flooded upland forests (terra-firme) in the municipalities of Manaus, Presidente Figueiredo, and Rio Preto da Eva …

Functional composition of the Amazonian tree flora and forests

Plants cope with the environment by displaying large phenotypic variation. Two spectra of global plant form and function have been identified: a size spectrum from small to tall species with increasing stem tissue density, leaf size, and seed mass; a …

Testing the morphotype-based classification of two leaf shapes in Ecclinusa guianensis (Sapotaceae) from Central Amazonia

*Ecclinusa guianensis* (Sapotaceae, Chrysophylloideae) is a morpho-ecologically variable species and the second most widespread species of *Ecclinusa* in the Amazon basin. In Central Amazonia, two distinct leaf morphotypes can be field-recognized …

Natural history of the hyperdominant tree, Pentaclethra macroloba (Willd.) Kuntze, in the Amazon River estuary

_Pentaclethra macroloba_ is a hyperdominant species with multiple uses in the Amazon. This species tolerates varying flood amplitudes, however the effect of flood topographic gradient on its ecophysiology remains unclear. We want to know if …