We mapped the inferred long-distance migrations of four species of Amazonian goliath catfishes (Brachyplatystoma rousseauxii, B. platynemum, B. juruense and B. vaillantii) based on the presence of individuals with mature gonads and conducted statistical analysis of the expected long-distance downstream migrations of their larvae and juveniles.
The Economics of Adaptation: Concepts, Methods and Examples is a guide for practitioners to assess economic benefits and costs of avoiding climate change damages through adaptation by developing these estimates using existing tools and data.
Mosquito-borne viruses threaten public health worldwide. When the ratio of competent vectors to susceptible humans is low enough, the virus’s basic reproductive number (R0) falls below 1.0 (each case generating, on average, <1.0 additional case) and the infection fades out from the population. Conventional mosquito control tactics, however, seldom yield R0 < 1.0.
Reconstructing the history of tropical hydroclimates has been difficult, particularly for the Amazon basin—one of Earth’s major centres of deep atmospheric convection. For example, whether the Amazon basin was substantially drier or remained wet during glacial times has been controversial, largely because most study sites have been located on the periphery of the basin, and because interpretations can be complicated by sediment preservation, uncertainties in chronology, and topographical setting.
A new study published in the journal Nature Ecology and Evolution, locates hotspots of threats to wildlife and describes how they are related to consumers' demand in other parts of the world.
Identifying hotspots of species threat has been a successful approach for setting conservation priorities. One important challenge in conservation is that, in many hotspots, export industries continue to drive overexploitation.
Cattle ranching in Brazil is a key driver of deforestation and greenhouse gas (GHG) emissions. The Brazilian government plans to reduce national GHG emissions by at least 36%, partly by reducing emissions in the livestock sector through strategies such as intensification, pasture improvement, and rotational grazing.
A new report offers evidence that the modest investments needed to secure land rights for indigenous communities will generate billions in returns—economically, socially and environmentally—for local communities and the world’s changing climate.
US imports of crude oil from the Amazon are driving the destruction of some of the rainforest ecosystem’s most pristine areas and releasing copious amounts of greenhouse gases, according to a new r
A new study published in the journal Nature Ecology and Evolution, locates hotspots of threats to wildlife and describes how they are related to consumers' demand in other parts of the world.
