Please use this identifier to cite or link to this item:
- Allometric growth of two species of Ephemeroptera from Neotropical mountains streams
- Universidade Estadual Paulista (UNESP)
- Universidade de São Paulo (USP)
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- CNPq: 301652/2008-2
- CNPq: 473246/2004-0
- CNPq: 477349/2007-2
- FAPESP: 98/11074-3
- FAPESP: 02/07216-4
- FAPESP: 04/09711-8
- FAPESP: 98/05073-4
- The present study evaluated the relative growth and allometry of Massartella brieni Lestage and Thraulodes sp. (Leptophlebiidae: Ephemeroptera). The morphometric analysis was based on 23 measurements and was conducted using a multivariate approach. Throughout postembryonic ontogeny, all of the head measurements, including those of the mouthparts, exhibited negative allometric growth. The mesothorax and wing pad exhibited positive allometric growth. The hind legs lengths in M. brieni and the fore and hind legs lengths in Thraulodes sp. exhibited positive allometry. The abdominal length in these two species exhibited positive allometric growth. Positive allometry was also observed along the abdomen width for M. brieni, and isometry was observed for Thraulodes sp. The relative strengthening of the thorax (in preparation for the winged stage) and the relative increase in the abdomen (which may be related to the development of the reproductive structures) during growth indicate that many of the structures that exhibit positive allometric growth are related to the transition from the aquatic to the adult stage of development.
- Annales de Limnologie-international Journal of Limnology. New York: Cambridge Univ Press, v. 48, n. 2, p. 145-150, 2012.
- Cambridge University Press
- Lotic environments
- aquatic insects
- multivariate allometry
- Acesso restrito
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.