Wyniki wyszukiwania

1

The effect of different thermal conditions on drone semen quality and number of spermatozoa entering the spermatheca of queen bee

100%

Bienkowska M., Panasiuk B., Wegrzynowicz P., Gerula D.

Journal of Apicultural Science

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2011

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tom 55

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nr 2

2

The structure of spermatheca in the genus Chelymorpha Chevrolat, 1837 [Coleoptera: Chrysomelidae: Cassidinae] and its taxonomic significance

100%

Borowiec L., Skuza M.

Annales Zoologici

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2004

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tom 54

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nr 2

Spermathecae of 42 nominal and three unidentified species of the genus Chelymorpha Chevrolat, 1837 have been studied and figured. The genus, contrary to the most of Cassidinae genera, is characterized by a very diverse structure of spermatheca. Ten morphological groups have been distinguished. The groups are partly correlated with the groups distinguished on the basis of external morphological characters. Based on the structure of spermatheca the following taxonomical changes have been proposed: Chelymorpha alternans Boheman, 1854 is a good species not a synonym of Ch. cribraria (Fabricius, 1775), Ch. reimoseri Spaeth, 1928 is a good species not a synonym of Ch. infecta Boheman, 1854, Ch. andicola Spaeth, 1928 is a distinct species not a subspecies of Ch. constellata (Klug, 1829). Ch. indigesta Boheman, 1854 and Ch. subpunctata Boheman, 1854, Chelymorpha texta Boheman, 1862 and Ch. cribraria (F.), and Ch. bullata Boheman, 1854 and Ch. alternans Boh. represent probably three pairs of polymorphic forms of three species but this problem needs verification by genetic studies.

3

Instrumental insemination of honey bee queens during flight activity predisposition period. 2. Number of spermatozoa in spermatheca

84%

Gerula D., Panasiuk B., Wegrzynowicz P., Bienkowska M.

Journal of Apicultural Science

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2012

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tom 56

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nr 1

4

Causes of the lack of diapause in bumble bee females [Bombus Latr., Apoidea]

84%

Fliszkiewicz M.

Journal of Apicultural Science

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2002

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tom 46

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nr 1

5

The structure of the spermathecae of selected genera of Stolaini and Eugenysini [Coleoptera: Chrysomelidae: Cassidinae] and its taxonomic significance

84%

Borowiec L., Opalinska S.

Annales Zoologici

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2007

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tom 57

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nr 3

Spermathecae of 43 nominal and one unidentified species of Cassidinae belonging to the tribes Eugenysini (two genera) and Stolaini (four genera) have been studied and figured. Spermathecae of particular genera are characterized by a set of constant and distinct characters and in many cases they are also diagnostic for species. No correlation was observed between the degree of sexual dimorphism within the species and the complexity of spermathecal structure. The distinctive structure of the spermatheca in the monotypical subgenus Pseudomoplata Spaeth, 1952 of the genus Echoma Chevrolat, 1837 suggests that the taxon should be excluded from the genus Echoma. The spermatheca of Paraselenis marginipennis (Spaeth, 1907), the only member of the subgenus Pseudechoma Spaeth, 1913 of the genus Paraselenis Spaeth, 1913, is more similar to the spermathecae of some members of the genus Oniaspides Chevrolat, 1837 than to any other member of Paraselenis and Pseudechoma and should probably be transferred to the genus Omaspides.

6

Size of the ovary, filling of the spermatheca, amount and fat content of the fat body in culture-derived copulating and non-copulating bumblebee queens [Bombus terrestris]

67%

Fliszkiewicz M., Wilkaniec Z., Bilinski M.

Journal of Apicultural Science

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2003

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tom 47

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nr 2

Ograniczanie wyników

4 Journal of Apicultural Science

2 Annales Zoologici

2 Bienkowska M.

2 Borowiec L.

2 Fliszkiewicz M.

2 Gerula D.

2 Panasiuk B.

2 Wegrzynowicz P.

1 Bilinski M.

1 Opalinska S.

1 Skuza M.

1 Wilkaniec Z.

1 2012

1 2011

1 2007

1 2004

1 2003

1 2002

The effect of different thermal conditions on drone semen quality and number of spermatozoa entering the spermatheca of queen bee

The structure of spermatheca in the genus Chelymorpha Chevrolat, 1837 [Coleoptera: Chrysomelidae: Cassidinae] and its taxonomic significance

Instrumental insemination of honey bee queens during flight activity predisposition period. 2. Number of spermatozoa in spermatheca

Causes of the lack of diapause in bumble bee females [Bombus Latr., Apoidea]

The structure of the spermathecae of selected genera of Stolaini and Eugenysini [Coleoptera: Chrysomelidae: Cassidinae] and its taxonomic significance

Size of the ovary, filling of the spermatheca, amount and fat content of the fat body in culture-derived copulating and non-copulating bumblebee queens [Bombus terrestris]