|
| Map 8
.
|
Tropical livestock units
(TLUs) per person
|
| Map 9.
|
Density of
poor
livestock keepers by farming system
|
| Table 7. |
Illustrative number of poor livestock keepers by
region/country and production system: World
Bank rural poverty and Livestock In Development (LID) system rates
|
The maps in Section 2.4 are based on the assumption that the
national poverty rate is equally applicable across all systems or
areas within the country. With a breakdown by livestock production
system, it is possible to show numbers of poor by livestock
production system, but this is only one step towards representing
the distribution of poverty among livestock keepers. Poverty rates
clearly differ within and between production systems. The
proportional importance of livestock to household income streams
differs from one culture to another and within production systems.
For example, mixed crop–livestock farmers have multiple
opportunities for obtaining income from a variety of sources; thus,
income from livestock probably contributes a smaller proportion to
their household food basket. By contrast, most pastoralists depend
on livestock for a large proportion of their income, although this
is changing. Thus, any map of poverty among livestock keepers needs
to account for the importance of livestock to income at the
household level. At the
national (or even regional) level, methods exist to deal with
measurement of such issues. Some of these are illustrated with
respect to Kenya in Section 3 below. At the global level,
information on the importance of livestock to rural livelihoods is
difficult to find. There are various approaches that could be taken
to modify Map 7a, Map 7b,
Map 7c and Map 7d to show differential poverty rates by
production system.
One approach would be to use the density
of TLUs per person as a proxy for the importance of livestock to
income at the household level (this is shown globally in Map 8). The
logic here would be that higher livestock numbers per person
indicate that livestock are more important to household incomes,
within a particular system. This assumption has some obvious flaws,
including the possibility that areas with more livestock per person
are areas that have more income opportunities of all kinds. However,
an overlay of TLUs per person with the poverty map would give rise
to differential poverty rates by system that could give an
indication of numbers of poor livestock keepers.
A second approach would be to estimate
the proportional importance of livestock to incomes in the 11
different production systems, and use this to weight the poverty
rate by system. Information on this is very scanty, however; the
approach using TLUs per person seems more objective, unless
databases can be built up with country-level systems poverty rates
(as for Kenya, see Section 3) from a wide variety of countries to
the point where extrapolation could be done with some confidence.
A third approach would be to weight
poverty rates by system with some notion of ‘vulnerability’ that
might be related to such factors as, for example, rainfall
variability, access to infrastructure and markets and soil
degradation. The assumption here would be that areas with higher
intrinsic vulnerability would be associated with higher poverty
rates. The World Resources Institute (WRI), for example, is
currently developing a global vulnerability layer that could
possibly be used in this way in the future.
A fourth approach is to use differential
poverty rates associated with particular production systems defined
in some way. Simply as an illustration of what could be done, and to
highlight the need for future work on this element of the analysis,
Map 9 shows (ostensibly) numbers of ‘poor livestock keepers’ by
system by country (the numbers are tabulated by system in Table
7).
These data were derived by applying differential proportions of poor
livestock keepers as a percentage of the total poor by livestock
production system. We used the revised estimates of the number of
poor livestock keepers globally from Livestock In Development (LID,
1999). Using these data for extensive graziers (which we equated
with the three livestock only, rangeland-based systems—LGA, LGH
and LGT), poor rainfed mixed farmers (the three mixed rainfed
systems, MRA, MRH and MRT), and landless livestock keepers (into
which category we lumped all the remaining systems), we calculated
global poverty rates for these systems using the data in Thornton et
al. (2000), and then derived the proportion of the numbers of poor
people in each system who are livestock keepers (76% for
livestock-only systems, 68% for mixed rainfed systems and 26% for
the remainder). These proportions were then applied to the numbers
of poor in each system using the World Bank rural poverty rates
(Table 6b). These numbers are very much illustrative only, but do
show the type of analysis that is needed to refine the global
poverty maps for maximum utility.
Map
9 indicates that the density of poor livestock keepers defined in
this way is particularly high throughout SA (India, Pakistan and
Bangladesh) and in parts of SSA (including Nigeria, Ethiopia,
Uganda, Burundi, Rwanda, Malawi, and some systems in Kenya, South
Africa and Niger, for example). These high densities appear to occur
mostly in the mixed systems—these are the mixed irrigated systems in parts of SA, and the mixed
rainfed systems in parts of
India and in most of SSA.
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