From preventive eugenics to slippery eugenics: Population control and contemporary sterilisations targeted to indigenous peoples in Mexico. [PDF]
Abstract Eugenic ideas in Mexico were popularised after the Mexican Revolution (1910–1920) as a way of ‘modernising’ and ‘civilising’ the nation. As a result, eugenic ideas were able to linger and be maintained through different departments, institutions, and individuals from all disciplines. After eugenics was considered a pseudoscience, its practices
Sanchez-Rivera R.
europepmc +2 more sources
Promising Potential of Lonchocarpus utilis against South American Myasis [PDF]
Traditional medicine is especially important in the treatment of neglected tropical diseases because it is the way the majority of populations of affected countries manage primary healthcare.
Carmen X. Luzuriaga-Quichimbo +4 more
doaj +2 more sources
Conservation threats and future prospects for the freshwater fishes of Ecuador: A hotspot of Neotropical fish diversity. [PDF]
ABSTRACT Freshwater fish communities in Ecuador exhibit some of the highest levels of diversity and endemism in the Neotropics. Unfortunately, aquatic ecosystems in the country are under serious threat and conditions are deteriorating. In 2018–19, the government of Ecuador sponsored a series of workshops to examine the conservation status of Ecuador's ...
Aguirre WE +15 more
europepmc +2 more sources
Divergent evolution of male aggressive behaviour: another reproductive isolation barrier in extremophile poeciliid fishes? [PDF]
Reproductive isolation among locally adapted populations may arise when immigrants from foreign habitats are selected against via natural or (inter‐)sexual selection (female mate choice). We asked whether also intrasexual selection through male‐male competition could promote reproductive isolation among populations of poeciliid fishes that are locally ...
Bierbach D +6 more
europepmc +2 more sources
Gradient evolution of body colouration in surface- and cave-dwelling Poecilia mexicana and the role of phenotype-assortative female mate choice. [PDF]
Ecological speciation assumes reproductive isolation to be the product of ecologically based divergent selection. Beside natural selection, sexual selection via phenotype‐assortative mating is thought to promote reproductive isolation. Using the neotropical fish Poecilia mexicana from a system that has been described to undergo incipient ecological ...
Bierbach D +16 more
europepmc +2 more sources
Medicinal Plants from North and Central America and the Caribbean Considered Toxic for Humans: The Other Side of the Coin. [PDF]
The consumption of medicinal plants has notably increased over the past two decades. People consider herbal products as safe because of their natural origin, without taking into consideration whether these plants contain a toxic principle. This represents a serious health problem.
Alonso-Castro AJ +7 more
europepmc +2 more sources
Potential of Traditional Knowledge of Plants in the Management of Arthropods in Livestock Industry with Focus on (Acari) Ticks. [PDF]
Antitick plants and related ethnoknowledge/ethnopractices with potential for integrated tick control and management strategies to improve livestock production are reviewed. About 231 plants reviewed showed a variety of bioactive properties, namely, being toxic, repellent, antifeedant, and antiovipositant and ability to immobilize target tick species ...
Wanzala W.
europepmc +2 more sources
EFECTO DEL BARBASCO (Lonchocarpus nicou) EN EL CONTROL DE ECTOPARÁSITOS EN RATONES DE LABORATORIO [PDF]
El objetivo de la presente investigación fue evaluar el efecto de barbasco (Lonchocarpus nicou) en el control de ectopárasitos en ratones de laboratorio. Se llevó a cabo un estudio experimental, comparativo y longitudinal.
Wilder Javier Martel Tolentino +1 more
doaj +1 more source
An indigenous religious ritual selects for resistance to a toxicant in a livebearing fish [PDF]
Michael Tobler +2 more
exaly +2 more sources
En el presente trabajo se hace referencia al estudio realizado en la obtención de un extracto biocida a partir del follaje de Loncho- carpus nicou. El estudio fotoquímico revela la presencia de flavonoides, saponinas, coumarinas y otros, en los diversos ...
Deisy Marlene Torres Morocho +3 more
doaj +1 more source

