Intrasexual egg laying in Belostoma oxyurum. A note on its ecological determinants (Hemiptera, Belostomatidae)
Intrasexual egg laying was detected in a female giant water bug, Belostoma oxyurum (Dufour) which was capturad carrying six fertilized eggs on its back. The location of the eggs does not belong to the pattern known for incubant males of this species. This finding is attributed to the absolu...
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| Autores principales: | , |
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| Formato: | Artículo revista |
| Lenguaje: | Inglés |
| Publicado: |
Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste)
2023
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/eco/article/view/7120 |
| Aporte de: |
| Sumario: | Intrasexual egg laying was detected in a female giant water bug, Belostoma oxyurum (Dufour) which was capturad carrying six fertilized eggs on its back. The location of the eggs does not belong to the pattern known for incubant males of this species. This finding is attributed to the absolute shortage of a sexual resource constituted by the male back space. Such environmental circuinstance was recorded in the field when this female was captured. The adult population from which it was taken included a hundred percent of both, gravid females and incubant males, and sex ratio was female biased though without statistical significance. The observed phenomenon has also been recorded in the Nearctic species Belostoma flumineum Say. Comparative considerations referred to bothspecies are included. |
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