The Life History, Ultrastructure, and Experimental Transmission of Hepatozoon catesbianae n. comb., an Apicomplexan Parasite of the Bullfrog, Rana catesbeiana and the Mosquito, Culex territans in Algonquin Park, Ontario

1995 ◽  
Vol 81 (2) ◽  
pp. 212 ◽  
Author(s):  
Sherwin S. Desser ◽  
Henry Hong ◽  
Donald S. Martin
Keyword(s):  
Life History ◽  
Rana Catesbeiana ◽  
Apicomplexan Parasite ◽  
Experimental Transmission ◽  
Culex Territans

Interrelationships of factors of social development are more complex than Life History Theory predicts

2019 ◽  
Vol 42 ◽  
Author(s):  
Boris Kotchoubey
Keyword(s):  
Life History ◽  
Social Development ◽  
Life History Theory ◽  
Strong Correlations ◽  
Behavioral Features

Abstract Life History Theory (LHT) predicts a monotonous relationship between affluence and the rate of innovations and strong correlations within a cluster of behavioral features. Although both predictions can be true in specific cases, they are incorrect in general. Therefore, the author's explanations may be right, but they do not prove LHT and cannot be generalized to other apparently similar processes.

Vesicular system associated with spermiogenesis of bullfrog

1987 ◽  
Vol 45 ◽  
pp. 818-819
Author(s):  
K. C. Liu ◽  
S. F. Tsay
Keyword(s):  
Electron Microscopy ◽  
Microscopic Study ◽  
Electron Microscopic Study ◽  
Reproductive System ◽  
Seminiferous Tubule ◽  
Rana Catesbeiana ◽  
Routine Procedure ◽  
Electron Microscopic ◽  
Twisted Tubules ◽  
Electron Lucent

In the histologic and electron microscopic study of the male reproductive system of bullfrog, Rana catesbeiana, a vesicular system associated with spermiogenesis was observed. It appeared in the lumenal space of the seminiferous tubule (Fig. 1), in the heads of spermatids (Fig. 2), associated with the chromatins of the spermatid (Fig. 4). As deduced from sections, this vesicular system consisted of vesicles of various size or a large group of waving and twisted tubules (Fig. 3), After routine procedure of treatment for electron microscopy, the lumens of both of the vesicles and tubules were electron lucent.In human, vesicles and vesicular system associated with reproductive cell and tissue were reported. In abnormal spermiogenesis, flower-like body, actually vesicles, and giant vesicle associated with the head of spermatid were observed. In both cases the number of vesicle was limited from a single one to a few.

New data on the life history and ecology of the deep-sea hooked squid Taningia danae

Sarsia ◽  
2003 ◽  
Vol 88 (4) ◽  
pp. 297-301 ◽  
Author(s):  
Guerra A. ◽  
Rocha F. ◽  
A. F. González
Keyword(s):  
Life History ◽  
Deep Sea

Review of Life History Research in Psychopathology: Volume 2.

1972 ◽  
Vol 17 (12) ◽  
pp. 702-702
Author(s):  
PHILIP S. HOLZMAN
Keyword(s):  
Life History

Review of Life History Research in Psychopathology.

1970 ◽  
Vol 15 (11) ◽  
pp. 701-701
Author(s):  
BRENDAN A. MAHER
Keyword(s):  
Life History
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