Topo-edaphic, floristic and physiognomic gradients of woody plants in a semi-arid African savanna woodland

Vegetatio ◽  
1996 ◽  
Vol 124 (1) ◽  
pp. 9-23 ◽  
Author(s):  
E. T. F. Witkowski ◽  
T. G. O'Connor
Keyword(s):  
Woody Plants ◽  
African Savanna ◽  
Savanna Woodland ◽  
Semi Arid

Litterfall and nutrient return in a semi-arid southern African savanna woodland dominated by Colophospermum mopane

Plant Ecology ◽  
2007 ◽  
Vol 196 (1) ◽  
pp. 101-110 ◽  
Author(s):  
Donald Mlambo ◽  
Petros Nyathi
Keyword(s):  
African Savanna ◽  
Nutrient Return ◽  
Savanna Woodland ◽  
Colophospermum Mopane ◽  
Semi Arid

The use ofin vitrogas production to evaluate rumen fermentation of leaves of 24 browse species indigenous to semi-arid areas of Zimbabwe

1998 ◽  
Vol 22 ◽  
pp. 238-240
Author(s):  
L. R. Ndlovu ◽  
L. Hove
Keyword(s):  
Woody Plants ◽  
Nutritive Value ◽  
Gas Production ◽  
Arid Areas ◽  
Chemical Methods ◽  
Tropical Regions ◽  
Biological Assays ◽  
Browse Species ◽  
Semi Arid

Browse species are important food resources in semi-arid areas, especially during the dry season when the nutritive value of grass is at its lowest. However, browse plants often contain secondary plant compounds which limit their nutritive value. Proanthocyanidins (PAs) (also called condensed tannins) and related flavonoids are a common constituent of woody plants in tropical regions (Mangan, 1988). PAs cause a bitter and astringent taste which lowers food palatability and they also lower the digestibility of proteins and carbohydrates (Jacksonet al., 1996). PAs also interfere with current chemical methods that are used for estimating nutritive value of foods (Reed, 1995). Biological assays, especially ,in vitrotechniques, have a potential to reflect better the nutritive value of foods that contain PAs. Thein vitrogas production technique has been found to reliably predict the nutritive value of temperate forages (Makkaret al., 1996). There has been limited research on its efficacy with tropical forages. The experiment reported here was conducted to test the hypothesis that gas production of tropical browse species reflects their content of fibre, protein and/or PAs.

Fire and herbivory shape belowground bud banks in a semi-arid African savanna

2021 ◽  
pp. 1-11
Author(s):  
AB Bombo ◽  
F Siebert ◽  
A Fidelis
Keyword(s):  
African Savanna ◽  
Bud Banks ◽  
Semi Arid

Species height and root symbiosis, two factors influencing antiherbivore defense of woody plants in East African savanna

Oecologia ◽  
1993 ◽  
Vol 93 (3) ◽  
pp. 322-326 ◽  
Author(s):  
R. Thomas Palo ◽  
Juan Gowda ◽  
Peter H�gberg
Keyword(s):  
Woody Plants ◽  
East African ◽  
African Savanna ◽  
Factors Influencing ◽  
Two Factors ◽  
Root Symbiosis ◽  
Antiherbivore Defense

The breeding season and diet of Arvicanthis in northern Nigeria

1989 ◽  
Vol 5 (4) ◽  
pp. 375-386 ◽  
Author(s):  
Safianu Rabiu ◽  
Martin Fisher
Keyword(s):  
Breeding Season ◽  
Food Supply ◽  
Rainy Season ◽  
Dry Season ◽  
Northern Nigeria ◽  
East African ◽  
African Savanna ◽  
Seasonal Differences ◽  
Sudan Savanna ◽  
Semi Arid

ABSTRACTThe breeding season and diet of the rat Arvicanthis was monitored from December 1983 to November 1985 in the semi-arid Sudan savanna at Kano, Nigeria, West Africa. Breeding began 1–2 months before the start of the rainy season and ceased at the beginning of the dry season. The diet of Arvicanthis was omnivorous, but with seasonal differences. Monocotyledons and dicotyledons predominated in the diet in the dry season, with seeds and insects increasing in the diet in the rainy season. The major differences between the ecology of Arvicanthis at Kano and on the East African savanna were that in East Africa the breeding season is longer and begins after the start of the rainy season. These and other dissimilarities between the biology of Arvicanthis in the two areas could be due to the effect of climatic differences on food supply and to the possible existence of different taxonomic groupings of Arvicanthis in the two regions.

Foliage acceptability to browsing ruminants in relation to seasonal changes in the leaf chemistry of woody plants in a South African savanna

Oecologia ◽  
1988 ◽  
Vol 75 (3) ◽  
pp. 336-342 ◽  
Author(s):  
Susan M. Cooper ◽  
Norman Owen-Smith ◽  
John P. Bryant
Keyword(s):  
South African ◽  
Seasonal Changes ◽  
Woody Plants ◽  
Leaf Chemistry ◽  
African Savanna

scholarly journals Spatial vegetation patterns and neighborhood competition among woody plants in an East African savanna

Ecology ◽  
2017 ◽  
Vol 98 (2) ◽  
pp. 478-488 ◽  
Author(s):  
Justin Dohn ◽  
David J. Augustine ◽  
Niall P. Hanan ◽  
Jayashree Ratnam ◽  
Mahesh Sankaran
Keyword(s):  
Woody Plants ◽  
Vegetation Patterns ◽  
East African ◽  
African Savanna ◽  
Neighborhood Competition

scholarly journals Tree species determine soil seed bank composition and its similarity with understory vegetation in a semi-arid African savanna

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Zewdu Kelkay Tessema ◽  
Belay Ejigu ◽  
Lisanework Nigatu
Keyword(s):  
Seed Bank ◽  
Tree Species ◽  
Soil Seed Bank ◽  
Understory Vegetation ◽  
African Savanna ◽  
Semi Arid
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