Animal Health
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Browsing Animal Health by Author "Amani"
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Item Aspects of Evolution in the Parrot Genus Agapornis.(1948) Amani; Moreau, R.E.Agapornis, an African genus of parrots allied to Loriculus of Asia, has usually been classified in nine species. Their geographical, altitudinal and ecological ranges are described and their temperature relations are worked out. There is a general agreement with Bergmann's rule. Only two of the Agapornids appear to be in any respect ecologically specialized: to A. swinderniana, the only one confined to tropical evergreen forest, the seeds of figs may be an essential food; and A. pullaria is more or less completely dependent on the nests of arboreal insects for nesting‐sites. The other seven Agapornids are birds of dry country with a wide range of food and are indiscriminate hole‐nesters. All nine birds are practically allopatric. The four closely allied birds in East Africa, which produce fertile hybrids very freely in captivity, seem nowhere actually to meet in nature. Certain vegetation types, especially Brachystegia‐Isoberlinia woodland, appear to be an effective barrier, for reasons not clear.Item A Contribution to the Ornithology of the East Side of Lake Tanganyika.(1943) Moreau, R.E.; AmaniLake Tanganyika, with surface about 2500 ft. A.S.L., is 440 miles long and 15 to 50 miles wide. Half-way down the lake, where the Kungwe promontory constricts it from the east, a "submarine ridge" exists, but both north and south of this the lake extends to the great depth of about 6000 ft. It is, then, clear that for the most part the lake occupies a narrow steep-sided trough, and the effect is carried on above the water's edge by the mountainous surroundings which give the lake so magnificent a scenic character.Item The Land Vertebrates of Pemba. Zanzibar and Mafia: A Zoo-Geographical Study.(1941) Moreau, R.E.; Pakenham, H.W.; AmaniRecent advances in the insular ornithology, with which we have been especially concerned, made it possible for us to compare for the first time approximately complete avifaunallists for the three big East African islands, Pemba, Zanzibar, and Mafia. We were struck by the curious distributional problems thereby raised, which, in view of the relatively easy dispersal of birds, could not adequately be considered without broadening the basis of discussion to include also terrestrial animals. Since our own special study had been the birds, it is due entirely to the assistance we have received from workers at the British Museum, especially Mr. H. W. Parker and Mr. R. W. Hayman, that we have been able to deal with the herpetological and the mammal faunas; for such assistance we desire to record our thanks.
