9 Works

Data from: Small tropical forest trees have a greater capacity to adjust carbon metabolism to long‐term drought than large canopy trees

David Bartholomew, Paulo Bittencourt, Antonio Da Costa, Lindsay Banin, Patrícia Costa, Sarah Coughlin, Tomas Domingues, Leandro Ferreira, André Giles, Maurizio Mencuccini, Lina Mercado, Raquel Miatto, Alex Oliveira, Rafael Oliveira, Patrick Meir & Lucy Rowland
The response of small understory trees to long‐term drought is vital in determining the future composition, carbon stocks and dynamics of tropical forests. Long‐term drought is, however, also likely to expose understory trees to increased light availability driven by drought‐induced mortality. Relatively little is known about the potential for understory trees to adjust their physiology to both decreasing water and increasing light availability. We analysed data on maximum photosynthetic capacity (J max, V cmax), leaf...

The response of carbon assimilation and storage to long-term drought in tropical trees is dependent on light availability

Lucy Rowland, Antonio Da Costa, Rafael Oliveira, Paulo Bittencourt, André Giles, Ingrid Coughlin, David Bartholomew, Tomas Ferreira Domingues, Raquel Miatto, Leandro Ferreira, Steel Vasconcelos, Joao Junior, Alex Oliveira, Maurizio Mencuccini & Patrick Meir
1) Whether tropical trees acclimate to long-term drought stress remains unclear. This uncertainty is amplified if drought stress is accompanied by changes in other drivers such as the increases in canopy light exposure that might be induced by tree mortality or other disturbances. 2) Photosynthetic capacity, leaf respiration, non-structural carbohydrate (NSC) storage and stomatal conductance were measured on 162 trees at the world’s longest running (15 yr) tropical forest drought experiment. We test whether surviving...

A large-scale assessment of plant dispersal mode and seed traits across human-modified Amazonian forests

Joseph Hawes, Ima Vieira, Luiz Magnago, Erika Berenguer, Joice Ferreira, Luiz Aragão, Amanda Cardoso, Alexander Lees, Gareth Lennox, Joseph Tobias, Anthony Waldron & Jos Barlow
1. Quantifying the impact of habitat disturbance on ecosystem function is critical for understanding and predicting the future of tropical forests. Many studies have examined post-disturbance changes in animal traits related to mutualistic interactions with plants, but the effect of disturbance on plant traits in diverse forests has received much less attention. 2. Focusing on two study regions in the eastern Brazilian Amazon, we used a trait-based approach to examine how seed dispersal functionality within...

Data from: Limited biomass recovery from gold mining in Amazonian forests

Michelle Kalamandeen, Emanuel Gloor, Isaac Johnson, Shenelle Agard, Martin Katow, Ashmore Vanbrooke, David Ashley, Sarah A. Batterman, Guy Ziv, Kaslyn Collins-Holder, Oliver L. Phillips, Eduardo S. Brondizio, Ima Vieira & David Galbraith
Gold mining has rapidly increased across the Amazon Basin in recent years, especially in the Guiana shield, where it is responsible for >90% of total deforestation. However, the ability of forests to recover from gold mining activities remains largely unquantified. Forest inventory plots were installed on recently abandoned mines in two major mining regions in Guyana, and re-censused 18 months later, to provide the first ground-based quantification of gold mining impacts on Amazon forest biomass...

An empirical evaluation of camera trap study design: how many, how long, and when?

Roland Kays, Brian Arbogast, Megan Baker-Whatton, Chris Beirne, Hailey Boone, Mark Bowler, Santiago Burneo, Michael Cove, Ping Ding, Santiago Espinosa, André Gonçalves, Christopher Hansen, Patrick Jansen, Joseph Kolowski, Travis Knowles, Marcela Lima, Joshua Millspaugh, William McShea, Krishna Pacifici, Arielle Parsons, Brent Pease, Francesco Rovero, Fernanda Santos, Stephanie Schuttler, Douglas Sheil … & Wilson Spironello
1. Camera traps deployed in grids or stratified random designs are a well-established survey tool for wildlife but there has been little evaluation of study design parameters. 2. We used an empirical subsampling approach involving 2225 camera deployments run at 41 study areas around the world to evaluate three aspects of camera trap study design (number of sites, duration and season of sampling) and their influence on the estimation of three ecological metrics (species richness,...

Phylogeny and biogeographic history of the Chiropotes (Pitheciidae, Platyrrhini)

Jeferson Carneiro, Iracilda Sampaio, Jose De Sousa E Silva Junior, Antonio Martins-Junior, Izeni Farias, Tomas Hrbek, Jean Boubli & Horacio Schneider
Pitheciidae is a New Word primate family composed of two subfamilies (Callicebinae and Pitheciinae). The three extant pitheciine genera, Pithecia, Cacajao and Chiropotes are all endemic to the Amazon region. Because of the uncertainties about intraspecific relationships, we reviewed the systematics and taxonomy of the genus Chiropotes. The phylogenetic analyses were performed based on Maximum Likelihood and Bayesian Inference, while species delimitation analyses were carried out using multispecies coalescent methods. In addition, we estimated genetic...

Museomics of tree squirrels: a dense taxon sampling of mitogenomes reveals hidden diversity, phenotypic convergence, and the need of a taxonomic overhaul

Edson F. Abreu-Jr, Silvia E. Pavan, Mirian T. N. Tsuchiya, Don E. Wilson, Alexandre Reis Percequillo & Jesus E. Maldonado
Background: Tree squirrels (Sciuridae, Sciurini), in particular the highly diverse Neotropical lineages, are amongst the most rapidly diversifying branches of the mammal tree of life but also some of the least known. Negligence of this group by phylogeneticists is likely a product of the scarcity or unavailability of fresh tissue samples for DNA sequencing. Lack of comprehensive phylogenies result in highly discrepant taxonomic arrangements that are based exclusively on morphological data—impressively, these are the only...

The combined role of dispersal and niche evolution in the diversification of Neotropical lizards

Fernanda P. Werneck, Yumi Sheu, Juan P. Zurano, Marco A. Ribeiro-Junior, Teresa C. Ávila-Pires, Miguel T. Rodrigues & Guarino R. Colli
Ecological requirements and environmental conditions can influence diversification across temporal and spatial scales. Understanding the role of ecological niche evolution under phylogenetic contexts provides insights on speciation mechanisms and possible responses to future climatic change. Large-scale phyloclimatic studies on the megadiverse Neotropics, where biomes with contrasting vegetation types occur in narrow contact, are rare. We integrate ecological and biogeographic data with phylogenetic comparative methods, to investigate the relative roles of biogeographic events and niche divergence...

Modelling the distribution of Amazonian tree species in response to long-term climate change during the mid-late Holocene

Vitor Gomes, Francis Mayle, William Gosling, Ima Vieira, Rafael Salomão & Hans Ter Steege
Aim: To (a) assess the environmental suitability for rainforest tree species of Moraceae and Urticaceae across Amazonia during the Mid-Late Holocene and (b) determine the extent to which their distributions increased in response to long-term climate change over this period. Location: Amazonia. Methods: We used MaxEnt and inverse distance weighting interpolation to produce environmental suitability and relative abundance models at 0.5-degree resolution for tree species of Moraceae and Urticaceae, based on natural history collections and...

Registration Year

  • 2020

Resource Types

  • Dataset


  • Museu Paraense Emílio Goeldi
  • University of Sao Paulo
  • University of Exeter
  • Australian National University
  • National Institute of Amazonian Research
  • Federal University of Western Pará
  • Autonomous University of San Luis Potosí
  • Anglia Ruskin University
  • Universidade da Amazônia
  • University of Montana