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- Journal of East African Natural History
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- Volume 1967, Issue 114, 1967
Journal of East African Natural History - Volume 1967, Issue 114, 1967
Volume 1967, Issue 114, 1967
Author A.H. Ogambo-OngomoSource: Journal of East African Natural History 1967 (1967)More Less
Provasoli (1958) has said, ""The ecological arena is populated by the products of the continuous challenge of nature to the potentialities of the organisms."" Protozoa are in close contact with their environment and should have a rapid and sensitive response to changes. Since one of the most striking variables in a lotic environment is the rate of flow, it was decided to see what effect two markedly differing rates had on the species composition of the protozona ""community"".
Author D.S. HartmanSource: Journal of East African Natural History 1967, pp 1 –4 (1967)More Less
Ecological studies of small mammals in East Africa are scarce. What little intensive work that has been undertaken centres on observations of habitat distribution and breeding cycles. Southern and Hook collected data on the distribution of Soricids and Murids in Uganda high forest (1963a) and later studied the reproductive condition of some insectivores and rodents of Uganda and Kenya (1963b). Delany (1964) summarized all quantitative work on small mammals in Africa south of the Sahara and added his own results from trappings in Uganda. The following superficial observations, the first on the Athi Plains, are presented merely as a guidepost for further investigations.
Author R.W.** Dring, D.M.* & RaynerSource: Journal of East African Natural History 1967, pp 5 –46 (1967)More Less
During recent months a number of collectors have sent gatherings of gasteromycete fungi from E. Africa to the Kew Herbarium. This paper has been written to record the results of their collecting as well as to give them, and other workers in the area, an admittedly incomplete but, it is hoped, useful guide to the puffballs and their allies in the East African region. Recently collected material has been supplemented by studies of the older collections in Kew (K) and elsewhere, particularly the E. African Herbarium (EA). Though this study is centred on E. Africa in a restricted sense we have also included some material from Malawi, Zambia, Rhodesia and Mozambique where considered appropriate. In a like manner Somalia has also been included. Perhaps, however, it is more important to note that we have also included the rather few gasteromycetes which we have examined from the Mascarene Islands. Though their nearest mainland is the east coast of Africa, these islands are known to have strong floristic affinities with Asia and Australasia rather than with Africa. So that, unless there is evidence to the contrary it should not be assumed that species recorded from these islands will occur on the African mainland.
Author J.B. SmartSource: Journal of East African Natural History 1967, pp 47 –51 (1967)More Less
The East Africa Natural History Society Bird Ringing Organization started ringing birds at the Eastleigh Sewage Works, Nairobi, in 1960. Brief reports have been published on the birds ringed up to the middle of 1961(Blencowe,1960and 1962).This report covers all activities up to the middle of 1966. Table I which is divided into two lists, palaearctic migrants and African birds, shows the total numbers of each species recorded as ringed on all ringing returns received to date. In most cases the returns cover the period to 30th June, 1966, but, Prof. D. A. Zimmerman's return up to August, 1966,has been included for the sake of completeness and because of the interesting species recorded. Several returns are still outstanding and those concerned who read this report are asked to send them in as soon as possible.
Author O.T. OwreSource: Journal of East African Natural History 1967, pp 61 –63 (1967)More Less
That the Reef Heron is exclusively a bird of the marine littoral has been a long and firmly held impression. Archer & Godman (1937:51), for example, stated categorically that this heron ""is confined to the sea-coast, appearing nowhere inland"" . More recent publications, by omission of reference to the accumulating inland records, have tended to perpetuate this impression. Mackworth-Praed & Grant (1957:46), although they had previously contributed to delineation of the species' inland range (see beyond), made no mention of this and Williams (1963) likewise omitted any comment as to occurrence inland.
Author J.B. GillettSource: Journal of East African Natural History 1967, pp 65 –73 (1967)More Less
Many readers of the Journal of the East African Natural History Society must, no doubt, be already acquainted with Dr. G. W. Reynolds' splendid book ""The Aloes of Tropical Africa and Madagascar"" which was published in 1966. Those who have tried to use it to identify Aloes in East Africa will probably have found Dr. Reynold's key to the groups into which he divides the genus difficult to follow and will have regretted the absence of any quick means of ascertaining which species have been found in any given area. The present paper is an attempt to supply the latter desideratum and to provide a key, which, it is hoped, will be easier to use. It is in no sense an original work and is not based on any detailed study of the genus. It is merely an attempt to reorganize some of the information supplied by Dr. Reynolds so as to make it easier to use. Nobody should try to use the present paper by itself to name Aloes. It should be used simply as an adjunct to Dr. Reynolds' book and if it helps the reader to arrive more quickly at Dr. Reynolds' descriptionptions and illustrations, by reference to which alone can the naming of Aloes be carried out with any approach to confidence, the aim of the author will have been achieved.
Author E. IsaacSource: Journal of East African Natural History 1967, pp 75 –83 (1967)More Less
Although there are scattered records of Kenya marine algae in the literature there is only one previous paper known to the author which is specifically on Kenya Marine Algae. This paper was published by Gerloff in 1960 and apart from recording Lyngbya majuscula and citing previous records of Cyanophyta, it deals with a collection of Chlorophyceae only (Gerloff, 1960). The list of species from the East African Herbarium, mostly collected by Greenway and Rawlins, and identified by Gerloff is given in an appendix. At present Gerloff's list is published without comment. It is intended that the following list of Kenya marine algae will be followed by papers dealing more fully with the species and their distribution as well as with additional species. The plants listed below were all collected by the author and he is responsible for the identifications unless otherwise stated. Only a minimum of references to literature is included in this paper.
Author E.K. UrbanSource: Journal of East African Natural History 1967, pp 85 –86 (1967)More Less
From 1962 through 1965 various members of the Faculty of Science of Haile Sellassie I University accumulated a series of amphibian specimens from Ethiopia. Except for duplicate specimens which are housed in the Biology Department of Haile Sellassie I University, the collection has been deposited in the Field Museum of Natural History, Chicago, Illinois. Because the species, distribution, and ecology of amphibians of Ethiopia are poorly known, an obvious need exists for papers, large and small, that deal with Ethiopian frogs, toads, and caecilians. Hence, I present below specific comments on this collection.