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Books > Professional & Technical > Agriculture & farming > Animal husbandry > General
Terrestrial Earthworms (Oligochaeta: Opisthopora) of China
summarizes the results of the classification of terrestrial
earthworms in China and provides detailed and authoritative
information. The content is classified according to the
classification system of Sims and Easton. Each earthworm is
described in detail from existing data sources and includes
descriptions of external morphological characteristics, internal
morphological characteristics, body color and distribution. This
book is a useful resource for researchers and practitioners in the
field of systematics, phylogeny, biodiversity, soil invertebrate
zoology and ecology.
This report investigates the situation of pastoralism, highlighting
its current context of vulnerability. It outlines policy
interventions, resilience programming, and research areas that
could enhance the resilience of pastoral livelihoods systems.
Pastoral livestock production is practised in an area representing
43 percent of Africa's land mass, and in some regions it represents
the dominant livelihood system. It covers 36 countries, stretching
from the Sahelian West to the rangelands of Eastern Africa and the
Horn and the nomadic populations of Southern Africa, with an
estimated 268 million pastoralists. Pastoralism developed 7000
years ago and spread throughout Northern Africa as an adaptation to
a rapidly changing and increasingly unpredictable arid climate. It
remains an important solution, as it allows pastoral herds to use
drier areas during the wet season and more humid areas during the
dry season. It thereby ensures access for pastoral livestock to
sufficient high-quality grazing and creates economic value.
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