This thesis presents a discussion of the main materialistic theories proposed to explain the process of development among the indigenous population of Latin America. Four theoretical approaches are presented and discussed. The first one deals with the social group referred to as peasants. The second one explains the process of...
The Inmaculada Mine is located in the Miocene belt of epithermal deposits that extends from southern Peru to northern Chile and Bolivia. This belt is known for its silver-rich epithermal veins that have been worked since colonial times. The Inmaculada Mine belongs to a mining district that includes, from north...
In the last 30 years, birdsfoot trefoil (Lotus corniculatus L. )
has been recognized as a great potential source of forage. Since the
1930's, many studies have been reported in relation to birdsfoot
trefoil characteristics, including some directly related with the
association between seed yield and its components.
The purpose...
Historical long term changes in stock abundance have been related to
climatic changes, and fish stocks seem to fluctuate over time in relation to
warm and cold periods in ocean waters. Large fluctuations of fish stocks
and long term changes in human harvest of marine resources are well
known from...
This paper focuses on the consequences of managing small-scale fisheries without consideration of geographical differentiation in reproductive potential through a species range. Because fishing costs
increase with distance, the alternative port locations are predicted to have substantially different impacts on biological and economic performance variables when there are no spatial...
The Mosquitia Region of Honduras is part of the largest wilderness area in Central
America. In terms of biodiversity the area is rich in ecosystems including pine savannas,
tropical rain forests, and wetlands. These ecosystems are rich in millions of species
including rare and endangered. Honduras faces an economic, social,...
The coastal zone is the area where the land, sea, air meet.
It has a unique combination of characteristics which favor human
development, trade and industry.
"Coastal climates are more moderate and stable than those of
the interior of the continents, and are usually associated with
sufficient rainfall to sustain...
In many small-scale fisheries around the world, hookah diving is the main fishing method and gear to catch high-value species like sea urchin, sea cucumber, queen conch and spiny lobster. Decompression sickness (DCS) and carbon monoxide poisoning (COP) are diseases related to hookah diving and are the cause of non-fatal and...
The Mexican shrimp fishery comprises a sequential fishery: an inshore fleet (IF) using cast nets and targeting juvenile shrimps; and the offshore fleet (OF) using trawler boats targeting adult shrimps. The main target species are brown, blue and white shrimps. Conventional aged-structured models are used to advice management of this fishery...
This work reports on the implications of an extreme climatic event among owners of fishing grounds in the spiny lobster (Panulirus argus) fishery of Punta Allen, Mexico. This MSC certified small-scale fishery is co-managed through Territorial User Rights. Members of the fishing cooperative, have exclusive access to individual fishing grounds...