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Detrimental effects of volcanic ash deposition on bee fauna and plant-pollinator interactions Ecología austral
Morales,Carolina L.; Saez,Agustín; Arbetman,Marina P; Cavallero,Laura; Aizen,Marcelo A..
Volcanic eruptions are large-scale natural disturbances, which can negatively affect insect fauna and the ecological interactions in which they are involved. The 2011 eruption of the volcanic complex Puyehue Cordón-Caulle (PCC) produced the deposition of 950 million tons of ash on Argentine Patagonia, creating an ash layer of varying thickness. Although experimental studies confirmed that PCC volcanic ash negatively affects survival and behavior in many insect taxa, including bees, the effects of ash deposition on the plant-pollinator interactions (PPI) of this group of insects in natural landscapes remained untested. We evaluated the effect of the gradient of increasing ash layer thickness (0-15cm) on: (1) number of wild bees visiting flowers and total...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bombus terrestris; Bumble bees; Large scale disturbance; Pollination; Puyehue Cordón-Caulle Volcano; Raspberry; Scotch broom.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2014000100006
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Economic Issues in the Management of Plants Invading Natural Environments: Scotch Broom in Barrington Tops National Park AgEcon
Odem, Doreen; Sinden, Jack A.; Cacho, Oscar J.; Griffith, Garry R..
Scotch broom (Cytisus scoparius, L.), is an exotic leguminous shrub, native to Europe, which invades pastoral and woodland ecosystems and adjoining river systems in cool, high rainfall regions of southeastern Australia. Broom has invaded 10,000 hectares of eucalypt woodland at Barrington Tops National Park in New South Wales, and is having a major impact on the natural ecology of the sub-alpine environment. It is extremely competitive with the native flora, retarding their growth and in many areas blanketing the ground and preventing growth of many understorey species in open forest areas. An active program to manage this invasion is being implemented by the National Parks and Wildlife Service. The management issues include whether eradication or...
Tipo: Conference Paper or Presentation Palavras-chave: Scotch broom; Economic issues; Management issues; Natural environments; Bioeconomic model; Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/58193
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Cytisus scoparius (Fam. Fabaceae) in southern Brazil - first step of an invasion process? Anais da ABC (AABC)
Cordero,Rodrigo León; Torchelsen,Fábio P.; Overbeck,Gerhard E.; Anand,Madhur.
The occurrence of Scotch broom Cytisus scoparius (L.) Link (Fabaceae), is reported for the first time in Brazil. The species has been registered in the species-rich Campos Sulinos grasslands, in the Campos de Cima da Serra, and in the Serra do Sudeste. Naturalizing populations were frequently formed in natural habitats near to human settlements, where prevailing land uses and disturbances facilitate dispersal and establishment. The plant is an invasive species that has globally caused significant damage to biodiversity and economic losses. In Brazil, the species has a strong potential for spreading into a wide range of ecosystems. The Atlantic Forest biome and part of the Pampa biome, together known as the Campos Sulinos, represent optimal areas for the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alien species; Early detection; Ecology; Grassland; Scotch broom.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100149
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