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You searched for: Subject Brazil Remove constraint Subject: Brazil Subject term functional diversity Remove constraint Subject term: functional diversity
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1. Aboveground biomass of functional groups in the ground layer of savannas under different fire frequencies

Author:
Cianciaruso, Marcus Vinicius; Aurélio da Silva, Igor; Batalha, Marco Antônio
Source:
Australian journal of botany 2010 v.58 no.3 pp. 169-174
ISSN:
0067-1924
Subject:
savannas; botanical composition; functional diversity; dry matter partitioning; aerial parts; frequency; prescribed burning; grasses; Tristachya; shrubs; plant competition; Brazil
Abstract:
... Savannas with different fire histories should have differences in aboveground biomass due to varying responses of functional groups. We investigated the effects of different fire frequencies on total aboveground biomass and also the biomass of functional groups (the tussock grass Tristachya leiostachya Nees, other grasses, small woody individuals) and dry biomass in savannas subjected to annual fi ...
DOI:
10.1071/BT09136

2. Functional diversity of herbaceous species under different fire frequencies in Brazilian savannas

Author:
Loiola, Priscilla de Paula; Cianciaruso, Marcus Vinicius; Silva, Igor Aurélio; Batalha, Marco Antônio
Source:
Flora 2010 v.205 no.10 pp. 674-681
ISSN:
0367-2530
Subject:
functional diversity; competitive exclusion; herbaceous plants; fires; fire regime; species diversity; savannas; biogeochemical cycles; Brazil
Abstract:
... Fire plays an important role in determining the structure of savannas, so that frequent fires tend to favor the herbaceous species in savannas. Functional diversity is a measure of the range of the species functional traits and is thought to be related to many functions and properties like community stability, nutrient cycling, and productivity, for example. We examined if functional diversity of ...
DOI:
10.1016/j.flora.2010.04.006

3. Leaf Traits as Functional Descriptors of the Intensity of Continuous Grazing in Native Grasslands in the South of Brazil

Author:
Cruz Pablo; De Quadros Fernando Luis F.; Theau Jean Pierre; Frizzo Adriana; Jouany Claire; Duru Michel; Carvalho Paulo Cesar F.
Source:
Rangeland ecology & management 2010 v.63 no.3 pp. 350-358
ISSN:
1551-5028
Subject:
functional diversity; dry matter content; long term experiments; C4 plants; plant communities; body weight; cattle; leaf area; Poaceae; forage; grazing intensity; grazing management; indigenous species; soil fertility; yields; grasslands; leaves; Brazil
Abstract:
... Plant functional types (PFT) have been used to describe the response of native vegetation to environmental factors (i.e., fertility) and to livestock disturbance, but rarely under conditions of continuous grazing. In this work we investigate whether the long-term response of grassland communities submitted to a gradient of continuous grazing pressure can be described with such an approach. After 1 ...
DOI:
10.2111/08-016.1

4. Loss of functional diversity of ant assemblages in secondary tropical forests

Author:
Jochen H. Bihn; Gerhard Gebauer; Roland Brandl
Source:
Ecology 2010 v.91 no.3 pp. 782-792
ISSN:
0012-9658
Subject:
Formicidae; animals; body size; ecological function; ecosystems; environmental impact; eyes; functional diversity; landscapes; plantations; primary forests; rare species; secondary forests; society; species diversity; tropical forests; Brazil
Abstract:
... Secondary forests and plantations increasingly dominate the tropical wooded landscape in place of primary forests. The expected reduction of biodiversity and its impact on ecological functions provided by these secondary forests are of major concern to society and ecologists. The potential effect of biodiversity loss on ecosystem functioning depends largely on the associated loss in the functional ...
DOI:
10.1890/08-1276.1

5. Relationships between invertebrate communities, litter quality and soil attributes under different cacao agroforestry systems in the south of Bahia, Brazil

Author:
Moço, Maria Kellen S.; Gama-Rodrigues, Emanuela F.; Gama-Rodrigues, Antonio Carlos; Machado, Regina C.R.; Baligar, Virupax C.
Source:
Applied soil ecology 2010 v.46 no.3 pp. 347-354
ISSN:
0929-1393
Subject:
polyphenols; nutrient content; agricultural soils; crop residue management; agroforestry; forest soils; functional diversity; bulk density; Theobroma cacao; soil fertility; soil pH; cocoa products; soil invertebrates; tropical forests; species diversity; lignin; shade trees; Erythrina; forest litter; germplasm conservation; Brazil
Abstract:
... This study was undertaken to investigate the relationship between soil and litter attributes to soil and litter fauna, and further to determine which of these attributes would be most significant in explaining the distribution of faunal communities in cacao agroforestry systems in the south of Bahia, Brazil. Soil and litter samples were collected in five cacao agroforestry systems: a cacao system ...
Handle:
10113/48613
DOI:
10.1016/j.apsoil.2010.10.006

6. Environmental factors related to anuran assemblage composition, richness and distribution at four large rivers under varied impact levels in southeastern Brazil

Author:
A. M. De Souza; P. C. Eterovick
Source:
River research and applications 2011 v.27 no.8 pp. 1023-1036
ISSN:
1535-1459
Subject:
Anura; amphibians; anthropogenic activities; breeding; breeding sites; dry season; environmental factors; functional diversity; human settlements; microhabitats; rivers; soil types; species diversity; surface water; vegetation structure; watersheds; zoogeography; Brazil
Abstract:
... The margins of large rivers are usually impacted by human settlements and activities, which may affect the occupancy and use of riparian habitats by many organisms. Among vertebrates, amphibians are likely the most sensitive to environmental changes, and they can be used as a model to identify attributes of the riparian habitats that are important for the maintenance of high species richness and f ...
DOI:
10.1002/rra.1410

7. Effects of habitat fragmentation on ant richness and functional composition in Brazilian Atlantic forest

Author:
Inara R. Leal; Bruno K. C. Filgueiras; Juliana P. Gomes; Luciana Iannuzzi; Alan N. Andersen
Source:
Biodiversity and conservation 2012 v.21 no.7 pp. 1687-1701
ISSN:
0960-3115
Subject:
Formicidae; climate; forest trees; functional diversity; habitat fragmentation; habitats; landscapes; omnivores; predators; species diversity; tropical forests; Brazil
Abstract:
... Ants are a dominant faunal group in tropical forests, but their responses to human disturbances remain poorly investigated. Here we examine the relative effects of habitat fragmentation (fragment size and amount of forest cover retained in the surrounding landscape) and habitat structure (tree density and richness) on ant species and functional composition in the Atlantic forest of northeast Brazi ...
DOI:
10.1007/s10531-012-0271-9

8. Fire drives functional thresholds on the savanna–forest transition

Author:
Vinícius de L. Dantas; Marco A. Batalha; Juli G. Pausas
Source:
Ecology 2013 v.94 no.11 pp. 2454-2463
ISSN:
0012-9658
Subject:
cerrado; climate models; ecosystems; fire regime; fires; forests; functional diversity; landscapes; phylogeny; plant communities; savannas; shade tolerance; soil; trees; understory; Brazil
Abstract:
... In tropical landscapes, vegetation patches with contrasting tree densities are distributed as mosaics. However, the locations of patches and densities of trees within them cannot be predicted by climate models alone. It has been proposed that plant–fire feedbacks drive functional thresholds at a landscape scale, thereby maintaining open (savanna) and closed (forest) communities as two distinct sta ...
DOI:
10.1890/12-1629.1

9. Adaptive radiation, correlated and contingent evolution, and net species diversification in Bromeliaceae

Author:
Thomas J. Givnish; Michael H.J. Barfuss; Benjamin Van Ee; Ricarda Riina; Katharina Schulte; Ralf Horres; Philip A. Gonsiska; Rachel S. Jabaily; Darren M. Crayn; J. Andrew C. Smith; Klaus Winter; Gregory K. Brown; Timothy M. Evans; Bruce K. Holst; Harry Luther; Walter Till; Georg Zizka; Paul E. Berry; Kenneth J. Sytsma
Source:
Molecular phylogenetics and evolution 2014 v.71 pp. 55-78
ISSN:
1055-7903
Subject:
Bromeliaceae; Crassulacean acid metabolism; adaptive radiation; birds; functional diversity; habitats; phenotype; phylogeny; pollination; pollinators; prediction; seeds; species diversity; Andes region; Brazil; Central America
Abstract:
... We present an integrative model predicting associations among epiphytism, the tank habit, entangling seeds, C3 vs. CAM photosynthesis, avian pollinators, life in fertile, moist montane habitats, and net rates of species diversification in the monocot family Bromeliaceae. We test these predictions by relating evolutionary shifts in form, physiology, and ecology to time and ancestral distributions, ...
DOI:
10.1016/j.ympev.2013.10.010

10. Brazilian Microbiome Project: Revealing the Unexplored Microbial Diversity—Challenges and Prospects

Author:
Victor Satler Pylro; Luiz Fernando Wurdig Roesch; José Miguel Ortega; Alexandre Morais do Amaral; Marcos Rogério Tótola; Penny Ruth Hirsch; Alexandre Soares Rosado; Aristóteles Góes-Neto; Artur Luiz da Costa da Silva; Carlos Augusto Rosa; Daniel Kumazawa Morais; Fernando Dini Andreote; Gabriela Frois Duarte; Itamar Soares de Melo; Lucy Seldin; Márcio Rodrigues Lambais; Mariangela Hungria; Raquel Silva Peixoto; Ricardo Henrique Kruger; Siu Mui Tsai; Vasco Azevedo; The Brazilian Microbiome Project Organization Committee
Source:
Microbial ecology 2014 v.67 no.2 pp. 237-241
ISSN:
0095-3628
Subject:
functional diversity; animals; sustainable development; metagenomics; ecosystems; land use; issues and policy; databases; Brazil
Abstract:
... The Brazilian Microbiome Project (BMP) aims to assemble a Brazilian Metagenomic Consortium/Database. At present, many metagenomic projects underway in Brazil are widely known. Our goal in this initiative is to co-ordinate and standardize these together with new projects to come. It is estimated that Brazil hosts approximately 20 % of the entire world’s macroorganism biological diversity. It is 1 o ...
DOI:
10.1007/s00248-013-0302-4
PubMed:
24173537

11. Spatial conservation priorities for top predators reveal mismatches among taxonomic, phylogenetic and functional diversity

Author:
Fernando L. Sobral; Lucas Jardim; Priscila Lemes; Nathália Machado; Rafael Loyola; Marcus V. Cianciaruso
Source:
Natureza & Conservação 2014 v.12 no.2 pp. 150-155
ISSN:
1679-0073
Subject:
functional diversity; planning; birds of prey; phylogeny; prioritization; mammals; carnivores; fauna; Brazil
Abstract:
... Systematic conservation planning is traditionally based on biological features, sometimes representing a single biodiversity component, such as top predators. However, few studies have tested the efficiency of traditional spatial prioritizations to capture the phylogenetic and functional diversity of entire faunas. Here, we evaluated (1) the congruence among spatial prioritization analyses based o ...
DOI:
10.1016/j.ncon.2014.09.008

12. The role of invasive pine on changes of plant composition and functional traits in a coastal dune ecosystem

Author:
Felícia M. Fischer; Juliano M. Oliveira; André L.P. Dresseno; Valério D. Pillar
Source:
Natureza & Conservação 2014 v.12 no.1 pp. 19-23
ISSN:
1679-0073
Subject:
Pinus taeda; botanical composition; dunes; ecosystems; functional diversity; growth rings; microhabitats; plant spines; regression analysis; tree age; trees; vegetation; Brazil
Abstract:
... In this article we investigate how invasion by Pinus taeda L. alters plant community composition and functional traits in sand dunes. In invaded psammophilous vegetation in southern Brazil, we randomly selected 15 P. taeda individuals and measured their age based on the number of growth rings. For each tree, we sampled 1m2 quadrats beneath and 2m away of its crown. In each quadrat, we assessed non ...
DOI:
10.4322/natcon.2014.004

13. Between‐ and within‐species trait variability and the assembly of sapling communities in forest patches

Author:
Marcos B. Carlucci; Vanderlei J. Debastiani; Valério D. Pillar; Leandro D. S. Duarte; Francesco Bello
Source:
Journal of vegetation science 2015 v.26 no.1 pp. 21-31
ISSN:
1100-9233
Subject:
canopy; forest communities; forests; functional diversity; grasslands; leaf area; plant response; saplings; Brazil
Abstract:
... QUESTIONS: What is the magnitude of between‐species trait variability (BSV) and within‐species trait variability (WSV) of specific leaf area (SLA) in a sapling meta‐community? To what extent do species turnover and WSV influence community‐level mean trait responses to an environmental gradient and trait spread patterns across this gradient? What is the role of WSV for mean plant responses to envir ...
DOI:
10.1111/jvs.12223

14. Biodiversity and environmental context predict dung beetle‐mediated seed dispersal in a tropical forest field experiment

Author:
Hannah M. Griffiths; Julio Louzada; Richard D. Bardgett; Wallace Beiroz; Filipe França; Daniel Tregidgo; Jos Barlow
Source:
Ecology 2015 v.96 no.6 pp. 1607-1619
ISSN:
0012-9658
Subject:
Coleoptera; artificial seeds; buried seeds; dung beetles; ecological function; ecosystems; environmental factors; feces; field experimentation; functional diversity; grasslands; habitats; insect communities; probability; seed dispersal; soil profiles; soil types; species diversity; tropical forests; Amazonia; Brazil
Abstract:
... Biodiversity–ecosystem functioning (BEF) literature is dominated by investigations conducted in temperate grassland ecosystems under homogenous environmental conditions. Consequently, studies concerned with the functional importance of higher trophic levels, or with the role of environmental conditions in shaping BEF relationships, are comparatively uncommon. To address this, we assessed dung beet ...
DOI:
10.1890/14-1211.1

15. Community structure, succession and invasibility in a seasonal deciduous forest in southern Brazil

Author:
M. S. Dechoum; T. T. Castellani; S. M. Zalba; M. Rejmánek; N. Peroni; J. Y. Tamashiro
Source:
Biological invasions 2015 v.17 no.6 pp. 1697-1712
ISSN:
1387-3547
Subject:
Hovenia dulcis; colonizing ability; community structure; deciduous forests; ecological invasion; functional diversity; functional properties; grasslands; invasive species; plant characteristics; plant communities; shrublands; species diversity; temperate forests; Brazil
Abstract:
... Majority of invasive trees colonize grasslands, shrublands, and temperate forests. Hovenia dulcis is an exception, because it is one of the most pervasive invaders in Brazilian subtropical forests where it has changed their structure and composition. This study has aimed to identify the clues for its success by defining the structural and functional characteristics of plant communities in differen ...
DOI:
10.1007/s10530-014-0827-6

16. Does functional trait diversity predict above‐ground biomass and productivity of tropical forests? Testing three alternative hypotheses

Author:
Bryan Finegan; Marielos Peña‐Claros; Alexandre Oliveira; Nataly Ascarrunz; M. Syndonia Bret‐Harte; Geovana Carreño‐Rocabado; Fernando Casanoves; Sandra Díaz; Paul Eguiguren Velepucha; Fernando Fernandez; Juan Carlos Licona; Leda Lorenzo; Beatriz Salgado Negret; Marcel Vaz; Lourens Poorter; Charles Canham
Source:
journal of ecology 2015 v.103 no.1 pp. 191-201
ISSN:
0022-0477
Subject:
functional diversity; nitrogen content; wood; tropical forests; aboveground biomass; leaf area; models; regression analysis; rain forests; carbon sequestration; trees; leaves; specific gravity; ecosystems; adults; Bolivia; Brazil; Costa Rica
Abstract:
... Tropical forests are globally important, but it is not clear whether biodiversity enhances carbon storage and sequestration in them. We tested this relationship focusing on components of functional trait biodiversity as predictors. Data are presented for three rain forests in Bolivia, Brazil and Costa Rica. Initial above‐ground biomass and biomass increments of survivors, recruits and survivors +  ...
DOI:
10.1111/1365-2745.12346

17. Flower functional trait responses to restoration time

Author:
Letícia Couto Garcia; Marcus Vinicius Cianciaruso; Danilo Bandini Ribeiro; Flavio Antonio Maës dos Santos; Ricardo Ribeiro Rodrigues; Alicia Acosta
Source:
Applied vegetation science 2015 v.18 no.3 pp. 402-412
ISSN:
1402-2001
Subject:
color; epiphytes; flowers; forest restoration; functional diversity; herbs; landscapes; normal values; parasitic plants; planting; rain forests; shrubs; species diversity; trees; tropical forests; Brazil
Abstract:
... QUESTIONS: (1) Do species richness, flower functional diversity and redundancy of tree and non‐tree species increase with restoration age; (2) are the flower traits of the reference forest similar to those found in restored sites; and (3) does species originality, in terms of unique combinations of different set of flower traits, differ among sites? LOCATION: Forests restored by planting a high di ...
DOI:
10.1111/avsc.12163

18. Functional and phylogenetic diversity of scattered trees in an agricultural landscape: Implications for conservation

Author:
Eduardo A. Athayde; Leonardo F. Cancian; Luciano M. Verdade; Leonor Patrícia C. Morellato
Source:
Agriculture, ecosystems & environment 2015 v.199 pp. 272-281
ISSN:
0167-8809
Subject:
Eucalyptus; agricultural land; agroecosystems; conservation areas; environmental law; farms; functional diversity; georeferencing; indigenous species; inventories; land use; landscapes; phylogeny; species diversity; trees; Brazil
Abstract:
... Scattered trees are an important feature of the matrix of agricultural landscapes, but their role in biodiversity conservation is still controversial and largely unexplored. We aim to investigate the value of scattered trees to maintain the functional and phylogenetic diversity within the matrix of an agricultural landscape dominated by commercial Eucalyptus plantation in southeastern Brazil. For ...
DOI:
10.1016/j.agee.2014.10.003

19. Metagenomic analysis reveals microbial functional redundancies and specificities in a soil under different tillage and crop-management regimes

Author:
Renata Carolini Souza; Mariangela Hungria; Maurício Egídio Cantão; Ana Tereza Ribeiro Vasconcelos; Marco Antonio Nogueira; Vânia Aparecida Vicente
Source:
Applied soil ecology 2015 v.86 pp. 106-112
ISSN:
0929-1393
Subject:
adenylate cyclase; agricultural soils; amino acids; aromatic compounds; carbohydrate metabolism; carbon; conventional tillage; crop residues; crop rotation; crops; cyclic AMP; direct seeding; discing; field experimentation; functional diversity; metagenomics; microbial communities; no-tillage; organic matter; pesticides; plowing; Brazil
Abstract:
... Information about microbial functionality in agricultural soils is still scarce, and in this study we used a shotgun metagenomic approach to compare different soil [conventional tillage (CT) with plowing and disking, and no-tillage (NT) with direct sowing into the residues of previous crops], and crop [crop succession (CS, soybean-summer/wheat-winter) or rotation (CR, soybean/maize-summer)/wheat/l ...
DOI:
10.1016/j.apsoil.2014.10.010

20. Mineral nutrition of campos rupestres plant species on contrasting nutrient‐impoverished soil types

Author:
Rafael S. Oliveira; Hugo C. Galvão; Mariana C. R. Campos; Cleiton B. Eller; Stuart J. Pearse; Hans Lambers
Source:
new phytologist 2015 v.205 no.3 pp. 1183-1194
ISSN:
0028-646X
Subject:
manganese; functional diversity; vesicular arbuscular mycorrhizae; nitrogen; nutrition; soil types; ecosystems; phosphorus; leaves; Brazil
Abstract:
... In Brazil, the campos rupestres occur over the Brazilian shield, and are characterized by acidic nutrient‐impoverished soils, which are particularly low in phosphorus (P). Despite recognition of the campos rupestres as a global biodiversity hotspot, little is known about the diversity of P‐acquisition strategies and other aspects of plant mineral nutrition in this region. To explore nutrient‐acqui ...
DOI:
10.1111/nph.13175