Results 51 to 60 of about 1,612,406 (164)

Optimizing sampling design to deal with mist-net avoidance in Amazonian birds and bats [PDF]

open access: yes, 2013
Mist netting is a widely used technique to sample bird and bat assemblages. However, captures often decline with time because animals learn and avoid the locations of nets. This avoidance or net shyness can substantially decrease sampling efficiency.
Marques, Joao Tiago   +20 more
core   +2 more sources

Biodiversity, threats and conservation challenges in the Cerrado of Amapá, an Amazonian savanna

open access: yesNature Conservation, 2017
An Amazonian savanna in northern Brazil known as the Cerrado of Amapá is under imminent threat from poor land-use planning, the expansion of large-scale agriculture and other anthropogenic pressures. These savannas house a rich and unique flora and fauna,
Karen Mustin   +14 more
doaj   +3 more sources

Le voyage discret des plantes

open access: yesRevue d'ethnoécologie, 2012
The dissemination of economically secondary plant species currently barely catches the attention of ethnobotanists. The two plants we selected, Abelmoschus moschatus and Zingiber zerumbet, present marked contrasts.
Pierre Grenand   +2 more
doaj   +1 more source

Extra-Botanical Capacities: Plant Agency and Relational Extractivism in Contemporary Amazonia

open access: yesPhilosophies
What is a plant? A photosynthesizing organism, molecule, commodity, songs, images, oniric experience, spirit…Indigenous perspectives show that plants cannot be thought of without the relationships that constitute them.
Karen Shiratori, Emanuele Fabiano
doaj   +1 more source

Pre-Columbian floristic legacies in modern homegardens of Central Amazonia. [PDF]

open access: yesPLoS ONE, 2015
Historical ecologists have demonstrated legacy effects in apparently wild landscapes in Europe, North America, Mesoamerica, Amazonia, Africa and Oceania. People live and farm in archaeological sites today in many parts of the world, but nobody has looked
Juliana Lins   +5 more
doaj   +1 more source

Natural larvicides from the Amazon: a promising alternative in the face of resistance to synthetic insecticides

open access: yesEclética Química
The global rise of arboviral diseases, combined with increasing resistance of mosquito vectors to synthetic insecticides, highlights the urgent need for alternative control strategies.
Paulo Roberto Barros Gomes
doaj   +1 more source

Seed dispersal by macaws shapes the landscape of an Amazonian ecosystem

open access: yesScientific Reports, 2017
Seed dispersal is one of the most studied plant–animal mutualisms. It has been proposed that the dispersal of many large-seeded plants from Neotropical forests was primarily conducted by extinct megafauna, and currently by livestock.
Adrián Baños-Villalba   +5 more
doaj   +1 more source

Mushroom tyrosinase inhibitory activity and major fatty acid constituents of Amazonian native flora oils

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2012
In order to treat hyperpigmentation-related problems, there has been a global trend in developing cosmetics claiming to have skin-whitening properties, which act by inhibiting melanin biosynthesis.
Raquel da Silva Teixeira   +5 more
doaj   +1 more source

Foodways in transition: food plants, diet and local perceptions of change in a Costa Rican Ngäbe community [PDF]

open access: yes, 2016
Background Indigenous populations are undergoing rapid ethnobiological, nutritional and socioeconomic transitions while being increasingly integrated into modernizing societies. To better understand the dynamics of these transitions, this article aims
Rajindra K. Puri   +3 more
core   +1 more source

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