نتایج جستجو برای: congo african grey parrot
تعداد نتایج: 130453 فیلتر نتایج به سال:
African nonhuman primate and rodent erythrocytes were tested for agglutination by adenoviruses, reoviruses, and enteroviruses. Squirrel erythrocytes were agglutinated by reovirus serotypes and adenovirus types 3, 11, 16, and 21. Adenoviruses also agglutinated brazza monkey erythrocytes to the same titers as those obtained with either rhesus or grey monkey cells. Prototype reovirus types 1 and 2...
Illegal trade constitutes a major threat for a variety of wildlife. A criminology framework has been recently applied to parrot poaching in Mexico, suggesting an opportunistic crime in which the most abundant and accessible species, and not the rare or highly priced species, were poached more often. We analyzed this information, together with additional long-term data (1981-2005) on both the le...
Konzo is an irreversible paralysis of the legs that occurs mainly in children and women of child bearing age in Mozambique, Tanzania, Democratic Republic of Congo (DRC), Cameroon, Central African Republic (CAR) and probably other countries. It is an upper motor neuron disease of sudden onset due to large intakes of cyanide from cassava over a fairly short period. Epidemics may occur as a result...
Konzo is an irreversible paralysis of the legs that occurs mainly in children and women of child bearing age in Mozambique, Tanzania, Democratic Republic of Congo (DRC), Cameroon, Central African Republic (CAR) and probably other countries. It is an upper motor neuron disease of sudden onset due to large intakes of cyanide from cassava over a fairly short period. Epidemics may occur as a result...
Strychnos usambarensis Gilg (Loganiaceae) is one of thé three most widely distributed African species of Strychnos L. In East and South Africa thé plant grows as a small tree 3-15 m in height. In several other localities in East Africa, as well as in Zaïre, Congo, and West Africa, it is found as a climber up to 70 m long (1). The only other morphological différence between thé two forms is thé ...
The ability to decode atypical and degraded speech signals as intelligible is a hallmark of speech perception. Human adults can perceive sounds as speech even when they are generated by a variety of nonhuman sources including computers and parrots. We examined how infants perceive the speech-like vocalizations of a parrot. Further, we examined how visual context influences infant speech percept...
I believe that we have to be grateful to Francois Tonneau for undertaking the overdue job of clearing out the conceptual and semantic overgrowth that had engulfed behavioural equivalence research and was increasingly turning this area into a matter of a quasi-theological dispute. I hope that henceforth editors and referees will be less facile about laying down the laws on what facts demonstrate...
We describe a new octoploid species of African clawed frog (Xenopus) from the Lendu Plateau in the northern Albertine Rift of eastern Democratic Republic of the Congo. This species is the sister taxon of Xenopus vestitus (another octoploid), but is distinguished by a unique morphology, vocalization and molecular divergence in mitochondrial and autosomal DNA. Using a comprehensive genetic sample...
Karyotypes of two species of the African annual killifish genus Nothobranchius Peters, 1868, Nothobranchius brieni Poll, 1938 and Nothobranchius sp. from Kasenga (D.R. Congo) are described. Both species displayed diploid chromosome number 2n = 49/50 for males and females respectively with multiple-sex chromosome system type X1X2Y/X1X1X2X2. The karyotypes of studied species are considerably diff...
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