Results 11 to 20 of about 20,376 (259)

Characterization of indigenous rhizobia from Caatinga [PDF]

open access: yesBrazilian Journal of Microbiology, 2010
The aim of this study was to characterize rhizobial isolates from Cratylia mollis Mart. ex Benth, Calliandra depauperata Benth. and Mimosa tenuiflora (Willd.) Poir. by means of rhizobial colonies morphology and restriction analysis of the 16S ribosomal gene (16S rDNA-ARDRA). Nodules were collected in the field and from plants cultivated in a greenhouse
Teixeira, Fernanda Cíntia Pires e   +3 more
openaire   +4 more sources

How much of the Caatinga is legally protected? An analysis of temporal and geographical coverage of protected areas in the Brazilian semiarid region

open access: yesActa Botânica Brasílica, 2021
Tropical dry forests are among the most threatened vegetation types in the world, exposed to even higher deforestation rates than rainforests. The largest tropical dry forest is the Caatinga, in the semiarid Northeast region of Brazil.
Lucas Peixoto Teixeira   +3 more
doaj   +1 more source

Parasitoids collected in the Caatinga [PDF]

open access: yes, 2021
The Caatinga is the only biome restricted to the Brazilian territory, occupying basically the Region Northeast, with some areas in the state of Minas Gerais. Caatinga vegetation does not have green exuberance rainforests and the dry aspect of the physiognomies dominated by cacti and shrubs suggests low diversification of fauna and flora.
openaire   +1 more source

Espécies exóticas invasoras em unidades de conservação federais do Brasil

open access: yesBiodiversidade Brasileira, 2014
Invasões biológicas estão entre as principais causas de perda de biodiversidade. Mesmo áreas protegidas têm sofrido sérias consequências das invasões biológicas, como a alteração da composição de espécies e dos processos ecossistêmicos, e em casos ...
Alexandre Bonesso Sampaio   +1 more
doaj   +3 more sources

Primeiro registro de leucismo no cachorro-do-mato Cerdocyon thous (Linnaeus, 1766) (Carnivora: Canidae) no Brasil

open access: yesBiotemas, 2019
Variações polimórficas podem atuar nas alterações cromáticas, que, em excesso, causam a hiperpigmentação (indivíduos melânicos), e quando deficientes são responsáveis pela hipopigmentação (indivíduos albinos, leucísticos ou com piebaldismo) e podem ...
Leandro da Silva Oliveira   +3 more
doaj   +1 more source

the Caatinga and desertification

open access: yesMercator, 2015
High deforestation in the Caatinga Biome has been generating processes of desertification in several areas, directly altering the biota, the microclimate and the soils, being essential the development of research techniques able to incorporate information which identify the state of natural resources, pointing their relationships and some paths to be ...
Bartolomeu Israel Souza   +2 more
openaire   +1 more source

Multitemporal Spatial Analysis of Land Use and Land Cover Changes in the Lower Jaguaribe Hydrographic Sub-Basin, Ceará, Northeast Brazil

open access: yesLand, 2022
Aquaculture is currently one of the fastest growing food production systems globally, and shrimp is considered one of the most highly valued products.
Samuel Gameiro   +4 more
doaj   +1 more source

Metabolomic Differentiation of Malpighiaceae From Dry and Humid Tropics via UHPLC-MS/MS and Chemometrics. [PDF]

open access: yesAnal Sci Adv
ABSTRACT Various factors can trigger water stress in plants, particularly in those growing in dry tropical regions. To survive under such conditions, plants produce metabolites with adaptive functions. However, metabolomic data on the leaves of Malpighiaceae species cultivated in both dry and humid tropical areas of Brazil remain scarce.
da Silva JMG, de Almeida RF, Zeraik ML.
europepmc   +2 more sources

Potential of Caatinga forage plants in ruminant feeding Potencial de plantas forrageiras da Caatinga na alimentação de ruminantes

open access: yesRevista Brasileira de Zootecnia, 2010
Caatinga is the most important biome for the livestock in the Brazilian semi-arid region. This review paper aimed to present information on different forage aspects of caatinga vegetation for ruminant feeding.
Mércia Virginia Ferreira dos Santos   +5 more
doaj   +1 more source

Manejo sustentável de fruteiras na caatinga: flora nas fazendas [PDF]

open access: yes, 2022
Na atualidade, a conservação da biodiversidade e dos serviços ambientais representa um dos maiores desafios globais, em função do elevado nível das pressões antrópicas sobre os ecossistemas naturais.
Silva, Fabiana Oliveira da   +10 more
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