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Titolo:
Morphometrics of a neotropical sandfly subspecies, Lutzomyia carrerai thula
Autore:
Dujardin, JP; Le Pont, F;
Indirizzi:
UMR Orstom CNRS 9926, F-34000 Montpellier, France UMR Orstom CNRS 9926 Montpellier France F-34000 4000 Montpellier, France Orstom La Paz, La Paz, Bolivia Orstom La Paz La Paz BoliviaOrstom La Paz, La Paz, Bolivia
Titolo Testata:
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE III-SCIENCES DE LA VIE-LIFE SCIENCES
fascicolo: 3, volume: 323, anno: 2000,
pagine: 273 - 279
SICI:
0764-4469(200003)323:3<273:MOANSS>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
PRINCIPAL COMPONENTS; PSYCHODIDAE; DIPTERA;
Keywords:
Lutzomyia; L-carrerai thula; L-carrerai; L-yucumensis; Diptera; Psychodidae; size; form; shape; subspecies; cryptic species; Bolivia; Ecuador;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Dujardin, JP UMR Orstom CNRS 9926, 911 Ave Agropolis, F-34000 Montpellier,France UMR Orstom CNRS 9926 911 Ave Agropolis Montpellier France F-34000
Citazione:
J.P. Dujardin e F. Le Pont, "Morphometrics of a neotropical sandfly subspecies, Lutzomyia carrerai thula", CR AC S III, 323(3), 2000, pp. 273-279

Abstract

In spite of obvious and frequently observed morphological variation in geographic populations of sand flies, taxonomists are reluctant to create subspecies. In doing so they avoid confusion caused by the accumulation of new taxa, but they also obscure natural processes, some of them related to probable species emergence. We investigated here how far the partitioning of size, shape and form could be a relevant technique for exploring early evolutionary processes. We used a typical case of species, subspecies and crypticspecies among three related taxa: Lutzomyia carrerai, its subspecies L. carrerai thula and L. yucumensis, a cryptic species of L. carrerai. Univariate and multivariate metric analyses showed global size differences, even between sympatric taxa (L. carrerai and L. yucumensis). When allometric effects were discounted, the subspecies L. c. thula still disclosed important differences from its putative type species, more pronounced than those existing between the two cryptic species, L. yucumensis and L. carrerai. A similarresult was obtained after removing isometric size. These analyses questionthe validity of L. carrerai thula as a subspecies, and show that morphometrics may be a useful tool for separating simple geographic variation from evolutionary divergence. (C) 2000 Academie des sciences/Editions scientifiques et medicales Elsevier SAS.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 16/07/20 alle ore 19:35:07