TheImprovement ofTropical and Subtropical Rangelands

122 IMPROVBMIlNT0' TROP/GAL AND SUBTROP/GAL RANGELANDS
J'IGURE 8-1 Gruml' 11. adjac:at to a pipeliDe prcJ9'idml' water for liv.tock
ba Tauuia hu heeD a.ceMm, whereu rup 11llib fanher from water are oilly
U.htly ued. (J. O'Rourke)
other domestic species, roam farther from water to forage, and reach
parta of t~ that would not be acce8Iible, even to goate. Goats
alao make effective WIe ofshrubs and are especially adept at selecting
leav. and other high-quality parta of the plante (figure ~S), but
they cannot move nearly as far from water as can the camel. Cattle
(figure 6-4) and sheep prefer grUB. Sheep, however, will eat more
tender shrubby materials aDd have a preference for forbs (figure ~
5). They prefer short to tall grUB aDd can grate to the hue of the
plante at IOil level. Theee many differences in eating habite require
that project. deal with several type8 of vegetation rather than with
a lingle speci•.
Becauee of their food preferences, animal. may alao be ueed to
lOme extent to control the compoeition ofthe vegetation. For example,
goate aDd water bufralo IIl&1 help to control brush. Cattle may
reduce the dominance of tall gr_, allowing a greater diversity in
vegetation that may favor other animal. BUch as sheep and wildebeest;
cattle are grued in lOuthern Bruit, Uruguay, and adjacent
parta ofArgentinain order to prepare the raDpland for WIe by sheep.
[ 1.)ltIZ ,d byCoogIe