Diet composition and habitat selection of eland in semi-arid shrubland

被引:46
|
作者
Watson, LH
Owen-Smith, N
机构
[1] Univ Witwatersrand, Dept Zool, ZA-2050 Johannesburg, South Africa
[2] Univ Witwatersrand, Ctr African Ecol, ZA-2050 Johannesburg, South Africa
关键词
diet; eland; habitat; karoo; semi-arid; ungulate;
D O I
10.1046/j.1365-2028.2000.00229.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
This study investigated the diet composition and habitat selection of eland in semi-arid shrubland, dominated by microphyllous and leptophyllous browse species offering low leaf : stem ratios. Browse (succulent, forb and woody species) contributed 94% to the annual diet of eland. The annual proportion of grass in eland diet was low (6%), even though palatable grass species were abundant in habitats favoured by eland. Most grass was eaten in the early wet season when grasses offered young green foliage. Woody species comprising dwarf shrubs and shrubs made up the bulk of the food eaten by eland. In each season, favoured woody species contributed substantial proportions to the diet of eland. Eland used the plateau habitats in the early wet season, but valleys and slopes in the late wet and dry seasons. Habitats favoured by eland contained high abundances of plants of woody species favoured by eland. Chemical analysis indicated that woody species favoured by eland offered lower total fibre contents than other woody species available to eland. The results of the study indicated that eland are browsers that select browse of low fibre content.
引用
收藏
页码:130 / 137
页数:8
相关论文
共 50 条
  • [31] Canopy photosynthesis modulates soil respiration in a temperate semi-arid shrubland at multiple timescales
    Xin Jia
    Tianshan Zha
    Shan Wang
    Charles P.-A. Bourque
    Ben Wang
    Shugao Qin
    Yuqing Zhang
    Plant and Soil, 2018, 432 : 437 - 450
  • [32] Seasonal variation in feeding habits and diet selection by wild boars in a semi-arid environment of Argentina
    Fernanda Cuevas, M.
    Ojeda, Ricardo A.
    Dacar, Maria A.
    Jaksic, Fabian M.
    ACTA THERIOLOGICA, 2013, 58 (01): : 63 - 72
  • [33] Nutrient deprivation improves field performance of woody seedlings in a degraded semi-arid shrubland
    Trubat, Roman
    Cortina, Jordi
    Vilagrosa, Alberto
    ECOLOGICAL ENGINEERING, 2011, 37 (08) : 1164 - 1173
  • [34] Drastic Disturbance of Salt-Affected Soils in a Semi-Arid Cool Desert Shrubland
    Day, S. J.
    Norton, J. B.
    Kelleners, T. J.
    Strom, C. F.
    ARID LAND RESEARCH AND MANAGEMENT, 2015, 29 (03) : 306 - 320
  • [35] First parturition of tigers in a semi-arid habitat, western India
    Randeep Singh
    Paul R. Krausman
    Puneet Pandey
    Qamar Qureshi
    Kalyanasundaram Sankar
    Surendra Prakash Goyal
    Anshuman Tripathi
    European Journal of Wildlife Research, 2014, 60 : 383 - 386
  • [36] Canopy photosynthesis modulates soil respiration in a temperate semi-arid shrubland at multiple timescales
    Jia, Xin
    Zha, Tianshan
    Wang, Shan
    Bourque, Charles P. -A.
    Wang, Ben
    Qin, Shugao
    Zhang, Yuqing
    PLANT AND SOIL, 2018, 432 (1-2) : 437 - 450
  • [37] Biogeochemical factors contributing to enhanced carbon storage following afforestation of a semi-arid shrubland
    Gruenzweig, J. M.
    Gelfand, I.
    Fried, Y.
    Yakir, D.
    BIOGEOSCIENCES, 2007, 4 (05) : 891 - 904
  • [38] Seasonal variation in feeding habits and diet selection by wild boars in a semi-arid environment of Argentina
    M. Fernanda Cuevas
    Ricardo A. Ojeda
    Maria A. Dacar
    Fabián M. Jaksic
    Acta Theriologica, 2013, 58 : 63 - 72
  • [39] Plant community resilience in the face of fire: experimental evidence from a semi-arid shrubland
    Lipoma, M. Lucrecia
    Gurvich, Diego E.
    Urcelay, Carlos
    Diaz, Sandra
    AUSTRAL ECOLOGY, 2016, 41 (05) : 501 - 511
  • [40] Context-dependent interactions between adult shrubs and seedlings in a semi-arid shrubland
    Riginos, C
    Milton, SJ
    Wiegand, T
    JOURNAL OF VEGETATION SCIENCE, 2005, 16 (03) : 331 - 340