Rangelands, Drylands & Pastoralism

Con la finalidad de evaluar productividad, consumo y eficiencia biológica en vacas Frisón Neozelandés (FN) y F1 Jersey-Frisón Neozelandés a pastoreo, se emplearon 23 vacas FN y 24 F1, primíparas, paridas entre el 23/7 y el 27/9 de 2001, en la Estación Experimental Oromo, Universidad de Chile, X Región. La información se recopiló en tres períodos, de 21 días cada uno.

This report provides a record of the Global Pastoralist Gathering, an event which brought together more than 200 pastoralists and their supporters from 23 countries to raise the profile and voice of pastoralists in governance and policy processes around the world.

El Plan de Acción Nacional de Lucha contra la Desertificación y la Sequía en Colombia es un instrumento de alcance nacional cuyo objetivo general es adelantar acciones contra la degradación de tierras, desertificación y mitigación de los efectos de la sequía, así como para el manejo sostenible de los ecosistemas de las zonas secas, a partir de la aplicación de medidas prácticas que permitan pre

Institutions of collective action and systems of property rights shape how people use natural resources, and these patterns of use in turn affect the outcomes of people’s agricultural production systems.

Las instituciones de acción colectiva y los sistemas de derechos de propiedad moldean la forma en que la gente usa los recursos naturales.A su vez, estos patrones de uso afectan los resultados de los sistemas de producción agrícola de la gente.

Agricultural growth will prove essential for improving the welfare of the vast majority of Africa’s poor. Roughly 80 percent of the continent’s poor live in rural areas, and even those who do not will depend heavily on increasing agricultural productivity to lift them out of poverty. Seventy percent of all Africans— and nearly 90 percent of the poor—work primarily in agriculture.

The vegetation dynamics of semi-arid and arid landscapes are temporally and spatially heterogeneous and subject to various disturbance regimes that act on decadal scales.

A survey of abomasal parasites in cervids from Central Spain was conducted at 3 sites, Quintos de Mora (Toledo), Maluéñez de Arriba (Cáceres), and La Herguijuela (Cáceres). Commonly occurring helminths belonged to 3 polymorphic species of the Ostertagiinae: Spiculopteragia asymmetrica/S. quadrispiculata, Ostertagia leptospicularis/O. kolchida, and O. drozdzi/O. ryjikovi.

Site degradation occurs mainly through deterioration of the soil's capacity to capture and store water, as well as the loss of organic matter or the accumulation of salts or other toxic substances in the soil. This degradation process, leading to the reduction of the biotic potential of the site, is known as desertification.