Results 111 to 120 of about 208,051 (314)

Size and frequency of natural forest disturbances and Amazon carbon balance [PDF]

, 2014
Forest inventory studies in the Amazon indicate a large terrestrial carbon sink. However, field plots may fail to represent forest mortality processes at landscape-scales of tropical forests. Here we characterize the frequency distribution of disturbance
Asner, Gregory P, Baker, Tim R, Boyd, Doreen S, Brienen, Roel J.W., Duarte, Valdete, Espirito-Santo, Fernando D.B., Feldpausch, Ted, Frolking, Steve, Gloor, Manuel, Keller, Michael, Lloyd, Jon, Lopez-Gonzalez, Gabriela, Malhi, Yadvinder, Mendoza, Abel Monteagudo, Nelson, Bruce, Oliveira, Raimundo C, Jr, Palace, Michael W, Pereira, Cleuton, Phillips, Oliver L, Saatchi, Sassan, Shimabukuro, Yosio E   +20 more
core   +1 more source

Intercomparison and Uncertainty Assessment of Nine Evapotranspiration Estimates Over South America [PDF]

, 2018
This study examines the uncertainties and the representations of anomalies of a set of evapotranspiration products over climatologically distinct regions of South America. The products, coming from land surface models, reanalysis, and remote sensing, are
Ruscica, Romina, Sörensson, Anna
core   +1 more source

The Importance of Environmental Heterogeneity in Evaluating the Conservation Status of Two Frog Species in a Changing Amazonian Interfluve

Animal Conservation, EarlyView.
Identifying the most effective criterion to assess the conservation status of vulnerable species in threatened tropical regions is crucial to evaluate recovery plans. We investigated the influence of environmental heterogeneity on the extent of occurrence (EOO), area of occupied habitat (AOH), and density variation of two Amazonian riparian frog ...
Rafael F. Jorge, Pedro Aurélio Costa Lima Pequeno, William E. Magnusson, Albertina Pimentel Lima   +3 more
wiley   +1 more source

Holocene increases in palm abundances in north‐western Amazonia

Journal of Biogeography, 2019
In Amazonia, 227 of c. 16,000 tree species account for half the individual trees (termed ‘hyperdominant’ species), and a disproportionate number of these species are palms. Our objectives are to show how and whether palm abundance has changed through the
Britte M. Heijink, C. McMichael, D. Piperno, J. Duivenvoorden, Dairón Cárdenas, Á. Duque   +5 more
semanticscholar   +1 more source

A key to the New World species of holostipous Lejeuneaceae [PDF]

, 1990
A synopsis and key emphasizing vegetative characters are provided for the 967species (in 36 genera) of Lejeuneaceae with undivided underleaves recorded from the New ...
Gradstein, Stephan Robbert
core  

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

Acta Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota, Ana Carla Soares da Silva, Lucas Jhones de Santana Neves, Carlos Eduardo Rocha Duarte Alencar, Fabrício Lopes Carvalho   +4 more
wiley   +1 more source

Height and phytotelm size affect the invertebrate communities of epiphytic bromeliads in the Amazon rainforest

Ecological Entomology, EarlyView.
The height at which epiphytic bromeliads are found affects the invertebrate community composition within them. The size of epiphytic bromeliads is positively correlated with species richness of both aquatic and terrestrial invertebrates. Whether bromeliads were found in primary or secondary forest did not have a significant effect on the community of ...
Xaali O'Reilly‐Berkeley, Alex Pazmiño‐Palomino, Andrea Hidalgo‐Cárdenas, Sofía I. Trujillo‐Regalado, Hannah Mossman, Jennifer K. Rowntree, Richard F. Preziosi   +6 more
wiley   +1 more source

Fingerprinting the impacts of global change on tropical forests [PDF]

, 2004
Recent observations of widespread changes in mature tropical forests such as increasing tree growth, recruitment and mortality rates and increasing above-ground biomass suggest that 'global change' agents may be causing predictable changes in tropical ...
Lewis, S.L., Malhi, Y., Phillips, O.L.
core   +1 more source

Abiotic drivers of co‐occurrence and diversity patterns of Calopterygidae species in Amazonian protected freshwaters

Ecological Entomology, EarlyView.
Species co‐occurrences rely on their ability to explore similar or distinct available resources, and possible niche overlap can prevent their presence and establishment in a given site Damselflies of the Calopterygidae family demonstrated negative co‐occurrences in streams inside and outside PAs, highlighting that their ecological similarity is ...
Joás Silva Brito, Everton Cruz Silva, Gabriel Martins Cruz, Victor Rennan Santos Ferreira, Rafael Costa Bastos, Josinete Sampaio Monteles, Cristian Camilo Mendoza‐Penagos, Fernando Geraldo Carvalho, José Max Barbosa Oliveira‐Junior, Karina Dias‐Silva, Thaisa Sala Michelan, Luciano Fogaça de Assis Montag, Lilian Casatti, Leandro Juen   +13 more
wiley   +1 more source

On "Amazonia"

Media-N, 2020
This essay grows out of Amazonia, a 2019 short “desktop cinema” essay film about the cities where Amazon.com had their four original distribution centers. The film uses those cities as a way of thinking about how the virtual economy is transforming real space.
openaire   +3 more sources