Results 51 to 60 of about 23,399 (310)

Detecção de Mudança da Vegetação de Caatinga (Change Detection of Vegetation Caatinga)

Revista Brasileira de Geografia Física, 2013
A caatinga é um bioma de grande diversidade que cobre a maior parte da área de clima semiárido brasileiro. Várias técnicas já foram utilizadas com o objetivo de determinar quantitativamente e qualitativamente o estado da vegetação a partir de imagens de satélite e índices de vegetação foram desenvolvidos para auxiliar no mapeamento da vegetação e ...
Paulo Roberto Megna Francisco, Iêde de Brito Chaves, Lúcia Helena Garófalo Chaves, Eduardo Rodrigues Viana de Lima   +3 more
openaire   +2 more sources

Grazing exclusion regulates bacterial community in highly degraded semiarid soils from the Brazilian Caatinga biome

Land Degradation and Development, 2020
Grazing exclusion has been applied as a suitable strategy for soil conservation worldwide, mainly on semiarid soils. However, it is unclear how grazing exclusion reduces the negative effects of overgrazing on the microbial community in the Caatinga biome.
A. Pereira, Lara Andrade Lucena Lima, W. M. Bezerra, M. L. Pereira, Leonardo Ribeiro Oliveira Normando, L. Mendes, J. Oliveira, A. Araújo, V. Melo   +8 more
semanticscholar   +1 more source

A new species from an inselberg in the Brazilian Atlantic forest: Stachytarpheta forzzae (Verbenaceae), supported by morphological, palynological and anatomical evidence

Nordic Journal of Botany, EarlyView.
We describe Stachytarpheta forzzae, a new species from an inselberg located in the municipality of Guaratinga, state of Bahia, within the Brazilian Atlantic forest. Morphologically, it resembles S. sprucei, the only other species of the genus known to inhabit inselbergs.
Pedro Henrique Cardoso, Fátima Regina Gonçalves Salimena, Andrea Pereira Luizi‐Ponzo, Nádia Silvia Somavilla, João Luís Lobo Monteiro de Castro, Marcelo Trovó   +5 more
wiley   +1 more source

Structural stability of plant–pollinator interactions despite seasonal abundance of long‐tongued hawkmoths

Oikos, EarlyView.
Seasonal environmental cycles affect plant–pollinator interactions by altering plant phenology. Periods of low resource availability can filter pollinators and reduce the complexity of interaction networks, but the extent to which the functional morphology of pollinators influences such filtering remains unclear.
Ugo M. Diniz, Luis M. Primo, Francisco A. R. Santos, Isabel C. Machado   +3 more
wiley   +1 more source

Alelopatia de espécies da Caatinga

Research, Society and Development, 2021
Para que a implementação de sistemas agroflorestais na Caatinga e de projetos de recuperação de áreas degradadas sejam práticas exitosas, devem ser considerados os efeitos alelopáticos que estarão envolvidos no sistema, pois os mesmos determinam a composição florística e a predominância das espécies vegetais.
Monalisa Alves Diniz da Silva, Joyce Naiara da Silva, Rafael Mateus Alves, Edilma Pereira Gonçalves, Jeandson da Silva Viana   +4 more
openaire   +2 more sources

Multiple scales of fear: foraging behaviour of white‐naped jays in semiarid landscapes

Oikos, EarlyView.
Animals must constantly balance the need to find resources with the risk of predation. Not only avoiding direct encounters with predators but also assessing the overall risk of their environment using cues, social information or habitat traits at multiple spatial and temporal scales.
Maria Carolina Beiriz, Luiz A. M. Mestre, Lorenzo R. S. Zanette   +2 more
wiley   +1 more source

Phenological dynamics of Croton heliotropiifolius populations in a savanna/caatinga gradient, Chapada Diamantina, Brazil

Rodriguésia, 2021
The relationship between phenology and environmental factors is critical to understanding population dynamics in environmental gradients. We evaluated phenological variations in Croton heliotropiifolius Kunth in sites with contrasting water resource ...
T.M. Costa, Marília Grazielly Mendes dos Santos, S. P. S. Neves, L. A. P. Miranda, L. S. Funch   +4 more
semanticscholar   +1 more source

Communal sustainable development goals, belonging and involvement: Engaging with the SDGs

People and Nature, EarlyView.
Abstract This study examines sustainable development from the cosmovisions of Indigenous Peoples and other Traditional Communities (IoTCs) in western Bahia, a region in the Brazilian savanna of the Cerrado. It adopts a feminist decolonial and post‐development approach to address issues of epistemic violence. Employing participatory arts‐based research,
Taís Sonetti‐González, Ana Paula Dutra de Aguiar, Fernanda de Henn, Luciana F. C. Ferreira da Silva, Dentina Cruz da Silva, María Mancilla García, Mairon G. Bastos Lima   +6 more
wiley   +1 more source

Allelopathy of Caatinga species

, 2021
Para que la implementación de sistemas agroforestales en la Caatinga y proyectos de recuperación de áreas degradadas sean prácticas exitosas, se deben considerar los efectos alelopáticos que estarán involucrados en el sistema, ya que determinan la composición florística y el predominio de especies vegetales.
Silva, Monalisa Alves Diniz da, Silva, Joyce Naiara da, Alves, Rafael Mateus, Gonçalves , Edilma Pereira, Viana, Jeandson da Silva   +4 more
openaire   +1 more source

Assessing the evolutionary distinctiveness of a highly threatened plant group: The urgency to preserve a unique lineage of evolution in Brazil

PLANTS, PEOPLE, PLANET, EarlyView.
Brazil's diverse flora is under several threats, with many unique lineages facing extinction, particularly in biodiverse regions like the Cerrado and campo rupestre. This study sheds light on the conservation needs of Cambessedesia (Melastomataceae), an endemic genus with 95% of its species endangered, using an approach to rank and prioritise species ...
Najla Bastos Scheidegger, Raquel C. Pizzardo, Bruno Vilela, Thuane Bochorny, Juliana Gastaldello Rando   +4 more
wiley   +1 more source