Results 11 to 20 of about 3,380 (161)

Multiple facets of biodiversity are threatened by mining‐induced land‐use change in the Brazilian Amazon

open access: yesDiversity and Distributions, Volume 29, Issue 9, Page 1190-1204, September 2023., 2023
Abstract Aim Mining is increasingly pressuring areas of critical importance for biodiversity conservation, such as the Brazilian Amazon. Biodiversity data are limited in the tropics, restricting the scope for risks to be appropriately estimated before mineral licensing decisions are made.
Thomas J. Lloyd   +19 more
wiley   +1 more source

Forest structure predicts species richness and functional diversity in Amazonian mixed‐species bird flocks

open access: yesBiotropica, Volume 55, Issue 2, Page 467-479, March 2023., 2023
We show that vegetation structure can predict species richness and functional diversity in Amazonian mixed‐species flocks in primary and secondary forests. In addition, we show that secondary forest flocks retain a large percentage of the functional diversity exhibited by their primary forest counterparts. Abstract Secondary forest has the potential to
Charles P. J. Coddington   +3 more
wiley   +1 more source

Geographic patterns of tree dispersal modes in Amazonia and their ecological correlates

open access: yesGlobal Ecology and Biogeography, Volume 32, Issue 1, Page 49-69, January 2023., 2023
Abstract Aim To investigate the geographic patterns and ecological correlates in the geographic distribution of the most common tree dispersal modes in Amazonia (endozoochory, synzoochory, anemochory and hydrochory). We examined if the proportional abundance of these dispersal modes could be explained by the availability of dispersal agents (disperser ...
Diego F. Correa   +207 more
wiley   +1 more source

Animal tracking moves community ecology: Opportunities and challenges

open access: yesJournal of Animal Ecology, Volume 91, Issue 7, Page 1334-1344, July 2022., 2022
Eltonian and Grinnelian dynamics inferred from multi‐species tracking data. Panel (a): Tracks of five individuals from three different species reveal intraspecific and interspecific interactions through time, thereby enabling the construction of interaction topologies including both conspecifics and heterospecifics at an individual level.
Raul Costa‐Pereira   +3 more
wiley   +1 more source

Fine root dynamics across pantropical rainforest ecosystems

open access: yesGlobal Change Biology, Volume 27, Issue 15, Page 3657-3680, August 2021., 2021
We present the largest global dataset to date on tropical forest fine root biomass, productivity, residence time, and allocation of total net primary productivity to fine roots, collected to a standardised protocol across 47 Global Ecosystems Monitoring plots in lowland and montane forests South America, Africa, and Southeast Asia.
Walter Huaraca Huasco   +45 more
wiley   +1 more source

Determinants of Fire Impact in the Brazilian Biomes

open access: yesFrontiers in Forests and Global Change, 2022
More and more, wildfires are raging in large parts of the world due to a warmer climate, more frequent and severe droughts, and continued land-use changes.
Ubirajara Oliveira   +6 more
doaj   +1 more source

CALIBRATING CELLULAR AUTOMATA OF LAND USE/COVER CHANGE MODELS USING A GENETIC ALGORITHM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Spatially explicit land use / land cover (LUCC) models aim at simulating the patterns of change on the landscape. In order to simulate landscape structure, the simulation procedures of most computational LUCC models use a cellular automata to replicate ...
J. F. Mas, B. Soares-Filho, H. Rodrigues
doaj   +1 more source

Uma Revisão sobre Sistemas de Referenciamento Linear para Cadastro Rodoviário e seu Potencial de Aplicação no Estado do Rio Grande do Sul (Brasil)

open access: yesRevista Brasileira de Cartografia, 2019
No setor rodoviário, a atividade de cadastro e integração das informações é tarefa contínua, podendo ser realizada com a utilização de Sistemas de Referenciamento Linear (SRL) e/ou de Sistemas de Informações Geográficas (SIG).
Aline Gomes da Silva Druzina   +2 more
doaj   +1 more source

EVALUATION OF ASTER IMAGES FOR CHARACTERIZATION AND MAPPING OF AMETHYST MINING RESIDUES [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
The objective of this work was to evaluate the potential of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), subsystems VNIR (Visible and Near Infrared) and SWIR (Short Wave Infrared) images, for discrimination and mapping of ...
P. R. Markoski, S. B. A. Rolim
doaj   +1 more source

REGIONALIZAÇÃO DE VARIÁVEIS GEOMORFOMÉTRICAS PARA O MAPEAMENTO DOS DOMÍNIOS MORFOESTRUTURAIS DA BACIA HIDROGRÁFICA DO RIO ITAJAÍ-AÇU (SC)

open access: yesRevista Brasileira de Geomorfologia, 2018
O mapeamento do relevo pode ser útil para diversas aplicações tais como zoneamentos territoriais e ecológico-econômicos, mapeamentos de risco a desastres naturais, estudos geológicos, biológicos e outros.
Jéssica Gerente   +2 more
doaj   +1 more source

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