OBSERVATIONS OF TREE GROWTH, WOODLAND STRUCTURE AND ELEPHANT DAMAGE ON COLOPHOSPERMUM-MOPANE IN LUANGWA VALLEY, ZAMBIA

被引:55
作者
LEWIS, DM
机构
[1] Nyamaluma Community-based Wildlife Management Training and Research Centre, PO Box 82, Mfuwe
关键词
ELEPHANT; COLOPHOSPERMUM-MOPANE; SOILS; HERBIVORY; COPPICE;
D O I
10.1111/j.1365-2028.1991.tb01003.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Six samples of tagged Colophospermum mopane were monitored for five years in locations with varying soil characteristics but with similar elephant densities. Physiognomic variation among the samples was related to soil differences, which also correlated with different browsing habits by elephants. The impact of elephant browsing further influenced both the physiognomy and demography of C. mopane. Results from this study suggest that the influence of soils and elephants on C. mopane alter successional transitions from grassland to woodland. Soils that promote coppicing of C. mopane yield less stable woodlands when associated with elephants than soils promoting woodlands with large bolus, non-coppicing trees. The dynamics of the latter are determined more by tree recruitment as influenced by such agents as other browsers or frequency and seasonality of bush fires. Implications for forest/elephant management are discussed.
引用
收藏
页码:207 / 221
页数:15
相关论文
共 19 条
[1]   LAND CLASSIFICATION FOR MANAGEMENT PLANNING IN LUANGWA VALLEY OF ZAMBIA [J].
ASTLE, WL ;
WEBSTER, R ;
LAWRANCE, CJ .
JOURNAL OF APPLIED ECOLOGY, 1969, 6 (02) :143-&
[2]  
CAUGHLEY G, 1975, East African Wildlife Journal, V13, P39
[3]  
CAUGHLEY G, 1976, E AFR WILDL J, V14, P265
[4]  
COLE MM, 1982, ECOL STUD, V42, P145
[5]  
CROZE H, 1974, East African Wildlife Journal, V12, P29
[6]  
DALALCLAYTON DB, 1983, SEMIDETAILED GEOMORP
[7]   VEGETATION-ENVIRONMENT RELATIONS ON SODIC SOILS OF ZIMBABWE-RHODESIA [J].
DYE, PJ ;
WALKER, BH .
JOURNAL OF ECOLOGY, 1980, 68 (02) :589-606
[8]   TRANSECT METHODS FOR POPULATION STUDIES [J].
EBERHARDT, LL .
JOURNAL OF WILDLIFE MANAGEMENT, 1978, 42 (01) :1-31
[9]  
HENNING A C, 1974, Proceedings Grassland Society of Southern Africa, V9, P53
[10]  
HUNTLEY BJ, 1982, ECOL STUD, V42, P101