Consulta: creatorFacets:"Nayrolles, Pierre"
Registros recuperados: 4
Data/hora: 17/06/2024 06:59:22

A standardized description of European Sminthuridae (Collembola, Symphypleona), 1: genera Lipothrix, Gisinurus, and Caprainea
Provedor de dados: 16
Autores: Nayrolles, Pierre.
A new standard description of Collembola Symphypleona is proposed. In particular, a standard table of the appendicular chaetotaxy (antennae, legs, and furcula) is given. According to this presentation, the following species are redescribed: Lipothrix lubbocki (Tullberg, 1872), Gisinurus malatestai Dallai, 1970, Caprainea marginata (Schött, 1893), and Caprainea bremondi (Delamare &amp; Bassot, 1957).
Tipo: Article / Letter to the editor
Palavras-chave: Collembola; Symphypleona; Lipothrix; Gisinurus; Caprainea; Chaetotaxy; Taxonomy.
Ano: 1993
URL: http://www.repository.naturalis.nl/record/503891

A standardized description of European Sminthuridae (Collembola, Symphypleona), 2: review of four species of the genera Allacma and Spatulosminthurus
Provedor de dados: 16
Autores: Nayrolles, Pierre.
According to our standard of the appendicular chaetotaxy, the following species are redescribed: Allacma fusca (Linné, 1758), Allacma gallica (Carl, 1899), Spatulosminthurus lesnei (Carl, 1899), and Spatulosminthurus betschi Nayrolles, 1990.
Tipo: Article / Letter to the editor
Palavras-chave: Collembola; Symphypleona; Allacma; Spatulosminthurus; Taxonomy; Chaetotaxy; Europe.
Ano: 1994
URL: http://www.repository.naturalis.nl/record/503953

A standardized description of European Sminthuridae (Collembola, Symphypleona), 3: description of seven species of Sminthurus, including four new to science
Provedor de dados: 16
Autores: Nayrolles, Pierre.
The following three species are redescribed: Sminthurus viridis (Linnaeus, 1758), Sminthurus nigromaculatus Tullberg, 1871, and Sminthurus multipunctatus Schäffer, 1896. Four new species are described from France and Spain: Sminthurus bourgeoisi n. sp., Sminthurus bozoulensis n. sp., Sminthurus leucomelanus n.sp.,and Sminthurus hispanicus n. sp. The importance of the ontogeny of chaetotaxy is stressed. Indeed, not all species acquire the secondary chaetotaxy in the same instar, and for these characters the most informative instar is not the adult but the third juvenile instar. The study of such characters involves the clustering of similar characters. A short discussion is given about this issue (selection of characters and clustering criteria).
Tipo: Article / Letter to the editor
Palavras-chave: Collembola; Symphypleona; Sminthurus; Chaetotaxy; New species; Taxonomy; Ontogeny; France; Spain.
Ano: 1995
URL: http://www.repository.naturalis.nl/record/503948

Analysis of a species/instars/characters table: a theoretical survey on the use of chaetotaxy in ontophylogenetic studies
Provedor de dados: 16
Autores: Nayrolles, Pierre.
Phylogenetic studies on several groups of arthropods, such as Acari (mites) or Collembola (springtails), make wide use of chaetotaxy. Chaetotaxic characters, besides being morphological features (setal shape), often have a binary nature, that is presence vs. absence. A seta can be variable in a population, and one may attribute a presence probability to this seta. In fact, the presence probability should be defined for each instar. One might think that a variable seta corresponds to a polymorphism (e.g., two or more alleles in a population); in fact, setal variability should be regarded as the result of a propensity intrinsic to individuals, i.e., a potentiality being expressed at random among specimens. The phenomenon known as lateral inhibition explains...
Tipo: Article / Letter to the editor
Palavras-chave: Ontogeny; Phytogeny; Chaetotaxy; Probabilistic organs; Ontogenetic trajectories; Arthropods; Collembola; Symphypleona.
Ano: 1998
URL: http://www.repository.naturalis.nl/record/534360