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  Morfometría de los estadios ninfales de Cornops aquaticum BRUNER (1906) (Acrididae: Leptysminae) en Argentina

Franceschini, M. C., Capello, S., Lhano, M. G., Adis, J., & De Wysiecki, M. L. (2005). Morfometría de los estadios ninfales de Cornops aquaticum BRUNER (1906) (Acrididae: Leptysminae) en Argentina. Amazoniana, 18(3/4), 373-386. Retrieved from http://www.mpil-ploen.mpg.de/mpiltj1.htm#Amazoniana_1812_2004.

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Genre: Journal Article
Alternative Title : Morphometry of the nymphal stages in Cornops aquaticum (Acrididae: Leptysminae) from Argentina

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373-386 Franceschini et al.pdf (Publisher version), 249KB
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373-386 Franceschini et al.pdf
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 Creators:
Franceschini, Maria Celeste, Author
Capello, Soledad, Author
Lhano, Marcos Gonçalves, Author
Adis, Joachim1, Author           
De Wysiecki, María Laura, Author
Affiliations:
1Working Group Tropical Ecology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976549              

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Free keywords: Morphometry; juveniles; nymphal stages; floodplains; Acrididae; Leptysminae; Cornops
 Abstract: Cornops aquaticum is a widely distributed species in Latin America and has a life cycle associated with Eichhornia crassipes (MART.) SOLMS and E. azurea (SW.) KUNTH (Pontederiaceae). The correct determination of the nymphal stages in C. aquaticum is important to study the population structure in a specific region. The purpose of this study is to evaluate if morphometric characters can be used to determine the different nymphal stages in C. aquaticum. For this reason, first-stage nymphs were reared at two localities (Corrientes: N = 29, 28, 24; Santa Fe: N = 26, 16) under different conditions of temperature and insolation. After hatching and after each moult, fresh weight ("Peso") of nymphs was determined and measurements of the following morphometrical characters were taken: distance from fastigium to end of pterothecas or pronotum (A), distance from fastigium to end of abdomen (B), length of hind femur (H), length of antenna (L), and number of antennal segments (N Ant.). Length of the hind femur (H) was the most constant and precise character in each nymphal stage, subjected to little measuring bias and easy to measure when working with a high population density. Morphometrical and morphological data are expected to contribute to the ecological knowledge of this species.

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Language(s): spa - Spanish
 Dates: 2005-12
 Publication Status: Issued
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 Identifiers: eDoc: 250742
URI: http://www.mpil-ploen.mpg.de/mpiltj1.htm#Amazoniana_1812_2004
Other: 2425/S 38442
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Title: Amazoniana
Source Genre: Journal
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Pages: - Volume / Issue: 18 (3/4) Sequence Number: - Start / End Page: 373 - 386 Identifier: ISSN: 0065-6755