Invasive alien woody plants of Natal and the north-eastern Orange Free State

Bothalia ◽  
1989 ◽  
Vol 19 (2) ◽  
pp. 237-261 ◽  
Author(s):  
L. Henderson
Keyword(s):  
Woody Plants ◽  
Metropolitan Areas ◽  
Psidium Guajava ◽  
Lantana Camara ◽  
Free State ◽  
Acacia Dealbata ◽  
The North ◽  
Coastal Belt ◽  
North Eastern ◽  
Intensity Of Invasion

The frequency and abundance of invasive alien woody plants were recorded along roadsides and at watercourse crossings in 87% (152/175) of the quarter degree squares in the study area. The survey yielded BO species of which the most prominent species (in order of prominence) in roadside and veld habitats were:  Chromolaena odoruta, Solatium mauritianum, Psidium guajava, Rubus spp., Acacia meamsu and Lantana camara The most prominent species (in order of prominence) in streambank habitats were:  Acacia dealbata, A. meamsii and  Salix babylonica.The greatest intensity of invasion was recorded in the Natal midlands and in the coastal belt of southern Natal, including the metropolitan areas of Pietermaritzburg and Durban. There was relatively little invasion in the north-eastern lowlands of Natal but the potential for expansion is great. Little invasion was recorded in the north-eastern Orange Free State except along some watercourses.

Invasive alien woody plants of the Orange Free State

Bothalia ◽  
1991 ◽  
Vol 21 (1) ◽  
pp. 73-89 ◽  
Author(s):  
L. Henderson
Keyword(s):  
Woody Plants ◽  
Prunus Persica ◽  
Mountain Region ◽  
Free State ◽  
Acacia Dealbata ◽  
Salix Fragilis ◽  
Salix Babylonica ◽  
Intensity Of Invasion

The frequency and abundance of invasive alien woody plants were recorded along roadsides and at watercourse crossings in 66% (151/230) of the quarter degree squares in the study area. The survey yielded 64 species of which the most prominent (in order of prominence) in streambank habitats were:  Salix babylonica, Populus x  canescens, Acacia dealbata and  Salix fragilis (fide R.D. Meikle pers. comm ). The most prominent species (in order of prominence) in roadside and veld habitats were:  Opunlia ficus-indica, Prunus persica, Eucalyptus spp..  Rosa eglanteria, Pyracantha angustifolia and Acacia dealbata.Little invasion was recorded for most of the province. The greatest intensity of invasion was recorded along the perennial rivers and rocky hillsides in the moist grassland of the eastern mountain region bordering on Lesotho and Natal.

A checklist of Pteridophyta of the north-eastern Orange Free State

Bothalia ◽  
1986 ◽  
Vol 16 (1) ◽  
pp. 83-85 ◽  
Author(s):  
J. P. Roux
Keyword(s):  
Free State ◽  
The North ◽  
North Eastern

A checklist of Pteridophyta recorded within a defined area of the north-eastern Orange Free State is presented. The geology, climate and vegetation of this area are discussed in brief.

Hepatozoon langii n. sp. and Hepatozoon vacuolatus n. sp. (Apicomplexa: Adele­orina: Hepatozoidae) from the crag lizard (Sauria: Cordylidae) Pseudocordylus langi from the North Eastern Drakensberg escarpment, Eastern Free State, South Africa

Zootaxa ◽  
2013 ◽  
Vol 3608 (5) ◽  
pp. 345-356 ◽  
Author(s):  
JOHANN VAN AS ◽  
ANGELA J. DAVIES ◽  
NICO J. SMIT
Keyword(s):  
South Africa ◽  
High Altitude ◽  
The Other ◽  
Host Cells ◽  
Giemsa Staining ◽  
Free State ◽  
Mixed Infections ◽  
The North ◽  
North Eastern ◽  
Eastern Free State

Two new haemogregarine species, Hepatozoon langii n. sp. and Hepatozoon vacuolatus n. sp., are described from the pe-ripheral blood of the high altitude crag lizard, Pseudocordylus langi, collected between October 2006 and April 2009 from the North Eastern Drakensberg, Eastern Free State. Hepatozoon langii n. sp. has maturing and mature gamonts that appear encapsulated and have narrow, curved tails. Their cytoplasm stains pinkish-purple with Giemsa, while their nuclei are pur-ple stained with stranded chromatin. Mature gamonts measure 19.1 ± 1.0 (15.4–28.1) μm long by 6.2 ± 1.1 (3.5–7.9) μm wide. Hepatozoon vacuolatus n. sp. gamonts are mostly broader at one pole than the other, have bluish-pink cytoplasm characterised by distinctive rounded and oval vacuoles, and demonstrate pink granules with Giemsa staining. Nuclei stain purple and are mainly coarsely granular. Mature gamonts measure 16.5 ± 1.0 (14.7 - 17.6) μm long by 5.9 ± 1.2 (4.0 - 7.7) μm wide. Both species parasitize erythroblasts, as well as erythrocytes and can dehaemoglobinize the cytoplasm of their host cells. Hepatozoon langii n. sp occurred in the absence of H. vacuolatus n. sp., but the latter haemogregarine always formed mixed infections with the former; no stages intermediate between the two haemogregarine types were observed.

The grassland communities of the slopes and plains of the north-eastern Orange Free State

1995 ◽  
Vol 25 (1) ◽  
pp. 1-21
Author(s):  
H. C. Eckhardt ◽  
N. van Rooyen ◽  
G. J. Bredenkamp
Keyword(s):  
Free State ◽  
The North ◽  
North Eastern ◽  
Grassland Communities

scholarly journals The phytosociology of the thicket and woodland vegetation of the north-eastern Orange Free State

1993 ◽  
Vol 59 (4) ◽  
pp. 401-409 ◽  
Author(s):  
H.C. Eckhardt ◽  
N. van Rooyen ◽  
G.J. Bredenkamp
Keyword(s):  
Free State ◽  
The North ◽  
North Eastern

scholarly journals A sero-epidemiological survey of blood parasites in cattle in the north-eastern Free State, South Africa

2004 ◽  
Vol 71 (1) ◽  
Author(s):  
M.S. Mtshali ◽  
D.T. De Waal ◽  
P.A. Mbati
Keyword(s):  
Fluorescent Antibody ◽  
Boophilus Microplus ◽  
Free State ◽  
Blood Parasites ◽  
Enzyme Linked Immunosorbent Assay ◽  
Babesia Bigemina ◽  
The North ◽  
Blood Smears ◽  
North Eastern ◽  
Eastern Free State

A survey to determine the incidence of parasites in cattle (n = 386) was conducted in the north eastern Free State between August 1999 and July 2000. Giemsa-stained blood smears were negative for blood parasites. A total of 94 % of the cattle were sero-positive for Babesia bigemina by indirect fluorescent antibody test while 87 % were sero-positive for Anaplasma by enzyme-linked immunosorbent assay. The observation of negative blood smears but high incidence of positive serological results for Anaplasma and Babesia for the same group of cattle indicates that this area is endemic for these diseases but with a stable disease situation. All the animals were sero-negative for B. bovis and this is probably because the tick vector (Boophilus microplus) which transmits the disease is not present in the Free State Province. Two tick species belonging to the family Ixodidae were found on cattle, namely Boophilus decoloratus and Rhipicephalus evertsi evertsi. In the present study significant differences in seasonal burdens of B. decoloratus occurred, with the highest infestations recorded from February to June. The presence of R. evertsi evertsi throughout the year without any or with small fluctuations in winter months was observed, with a peak from February to May

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