Results 131 to 140 of about 579,088 (287)

Producing a Red List of Ecosystems for the Brazilian Cerrado

Conservation Science and Practice, EarlyView.
Land clearance is a key driver of biodiversity loss. This is a particular issue in the Brazilian Cerrado, the world's most biodiverse savanna biome and a region experiencing the rapid expansion of agriculture. By using the Red List of Ecosystems as an international standard, we provide the first globally comparable analysis of the state of the Cerrado,
Juliana Ávila Martins, Robert J. Smith
wiley   +1 more source

The influence of fire frequency on the structure and botanical composition of savanna ecosystems. [PDF]

Ecol Evol, 2019
Ribeiro N, Ruecker G, Govender N, Macandza V, Pais A, Machava D, Chauque A, Lisboa SN, Bandeira R.   +8 more
europepmc   +1 more source

Plant Growth and Arthropod Assemblage Metrics on Sapindus saponaria Fertilized With Dehydrated Municipal Sewage Sludge

Entomologia Experimentalis et Applicata, EarlyView.
Under the conditions evaluated, dehydrated municipal sewage sludge increased branches per plant and ground cover in Sapindus saponaria and increased cumulative arthropod observations and species richness in selected groups. Exploratory multivariate patterns did not demonstrate direct causal plant–arthropod relationships.
David Lopes Teixeira, Germano Leão Demolin Leite, Regynaldo Arruda Sampaio, Wagner de Souza Tavares, Tarcísio Marcos Macedo Mota Filho, Islam Dad Buneri, Ronald Zanetti, Roberto da Silva Camargo, Carlos Frederico Wilcken, José Cola Zanuncio   +9 more
wiley   +1 more source

Social bees can enhance the persistence of plant–bee interactions during seasonal changes in seasonally dry tropical forests

Ecological Entomology, EarlyView.
Social bees, especially Meliponini, formed a persistent core that maintained plant–bee interactions across both dry and green seasons in the Caatinga. Persistence was not linked to broader diets; social bees used fewer plant species, despite availability, indicating selective tracking of temporally concentrated floral resources.
Ana Letícia S. Lima, Cândida M. L. Aguiar, Celso F. Martins, Emanuelle L. S. Brito   +3 more
wiley   +1 more source

Estimating leaf area index in savanna vegetation using remote sensing and inverse modelling [PDF]

Leaf area index (LAI), defined as the one sided green leaf area per unit ground area, is a key parameter in ecosystem process models. Owing to the large area of the earth's surface that they occupy, savanna ecosystems represent the third largest ...
Bowyer, P
core  

Protection status and environmental gradients shape butterfly assemblages in an East African tropical ecosystem

Insect Conservation and Diversity, EarlyView.
Observed butterfly richness was highest in moderately protected areas. During the dry season, vegetation productivity increased butterfly richness while human population density reduced it. Moderately protected areas supported high butterfly abundance and a high proportion of host‐specialist species.
Richard Alphonce Giliba, Jacqueline Loos, Konrad Fiedler   +2 more
wiley   +1 more source

Characterization of a North Carolina Lower Coastal Plain Wet Pine Savanna.

, 2007
Savannas in the southeastern United States formerly occurred from East Texas to southern Virginia. Logging, conversion to agriculture, and fire suppression have reduced their area and extent, and there is an urgent need to catalogue and classify the ...
Wall, Wade Alan
core  

Fire‐driven forest degradation enhances termite activity and accelerates litter decomposition in the Amazonia rainforest

Insect Conservation and Diversity, EarlyView.
Forest degradation increased termite‐mediated litter decomposition, whereas no such effect was detected in undisturbed forests. Reduced ant predation and altered forest conditions were associated with higher termite abundance and faster litter decomposition.
Vanessa S. Ribeiro, José Henrique Schoereder, Tathiana G. Sobrinho, Paulo M. Brando, Filipe Viegas de Arruda, Ludmila Rattis, Og DeSouza, Márcia N. Macedo, Leonardo Maracahipes‐Santos, Lucas Navarro Paolucci   +9 more
wiley   +1 more source

Ecological networks in savannas reflect different levels of hydric stress in adjacent palm swamp forest ecosystems

Scientific Reports
Palm swamp forests are wetland ecosystems typical of the Brazilian Cerrado, which in recent decades have undergone intense changes due to land use alterations and climate change.
Walter Santos de Araújo, Luana Teixeira Silveira   +1 more
doaj   +1 more source

The Landless Rural Workers Movement (MST) and New Agrarian Questions in Brazil

Journal of Agrarian Change, EarlyView.
ABSTRACT The Landless Rural Workers Movement of Brazil (MST) primarily organized occupations of large‐scale farms, forcing the redistribution of land for creation of agrarian reform settlements. In the past 20 years, however, land occupations and the establishment of new agrarian reform settlements have consistently declined, while the MST shifted ...
Estevan Coca, Gustavo de L. T. Oliveira
wiley   +1 more source