Distribution, Abundance and Molecular Analysis of Genus Barbadocladius Cranston & Krosch (Diptera, Chironomidae) in Tropical, High Altitude Andean Streams and Rivers

The distribution of the genus Barbadocladius Cranston & Krosch (Diptera: Chironomidae), previously reported from Chile to Bolivia, has extended northwards. Larvae, pupae and pupal exuviae of this genus have been found in the high mountain tropical streams of Peru to 9°22′56″, but are restricted to very high altitude streams (altitudes over 3,278 m asl) compared to the lower altitude streams (below 1,100 m asl) in which the genus is reported in Chile and Argentina. Based on morphological studies, both described species in the genus, Barbadocladius andinus Cranston & Krosch and Barbadocladius limay Cranston & Krosch, have been found in Peru as pupae or pupal exuviae. Morphological analysis of the larvae and pupae revealed no differences between the two described species from Patagonia and Peru, which are of similar size and with a similar armament of hooklets and spines in pupal tergites and sternites. However, molecular analysis of larvae and pupae revealed that in Peru, there are at least two different evolutionary lines, one distributed widely and another restricted to one site. Phylogenetic analysis (using cox1 mitochondrial sequences) of all available sequences of Barbadocladius shows that the Chilean and Argentinean material differs from that of Peru. Therefore, a total of four molecular segregates are identified, although morphologically, neither larvae nor the pupae may be differentiated.

Annales des sciences d'observation : comprenant l'astronomie, la physique, la chimie, la minéralogie, la géologie, la physiologie et l'anatomie des deux règnes, la botanique, la zoologie,les théories mathématiques ; et les principales applications de toutes ces sciences à la météorologie, à l'agriculture, aux arts et à la médecine / par MM. Saigey et Raspail

Périodicité : Mensuel

Present day distribution and historical biogeography of the tribu Ophidiini (Ophidiformes, Ophidiidae, Ophidiinae) from the East Tropical Atlantic (CLOFETA area) and North-East Atlantic and Mediterranean (CLOFNAM area)

The present day geographic distribution of the Ophidiini tribe (Ophidiidae, Ophidiinae) in the Clofnam (North- Eastern Atlantic and Mediterranean) and Clofeta (Eastern Tropical Atlantic) areas is revised in this paper. Results show that Parohidion vassali is not a Mediterranean endemic species, and the presence of Ophidion barbatum in the Atlantic is confirmed. Moreover, the paper tries to analyse the historical events which could have caused the present situation of two genera, Ophidion and Parophidion, both in the Atlantic and in the Mediterranean. Although first fossil records of Ophidion and Parophidion date from the Pliocene, when considering all the historical events occurred from the existence of the Tethys Sea to the opening of the Atlantic and the Mediterranean formation, a much earlier origin of these genera seems to be more likely. The situation of Ophidion barbatum and O. rochei in the Mediterranean and Black Sea is also discussed

Annuaire encyclopédique : politique, économie sociale, statistique, administration, sciences, littérature, beaux-arts, agriculture, commerce, industrie / publié par les directeurs de l'Encyclopédie du XIXe siècle

1861.

Annuaire encyclopédique : politique, économie sociale, statistique, administration, sciences, littérature, beaux-arts, agriculture, commerce, industrie / publié par les directeurs de l'Encyclopédie du XIXe siècle

1863.

Annuaire encyclopédique : politique, économie sociale, statistique, administration, sciences, littérature, beaux-arts, agriculture, commerce, industrie / publié par les directeurs de l'Encyclopédie du XIXe siècle

1859-1860.

Annuaire encyclopédique : politique, économie sociale, statistique, administration, sciences, littérature, beaux-arts, agriculture, commerce, industrie / publié par les directeurs de l'Encyclopédie du XIXe siècle

1865-1866.

Annuaire encyclopédique : politique, économie sociale, statistique, administration, sciences, littérature, beaux-arts, agriculture, commerce, industrie / publié par les directeurs de l'Encyclopédie du XIXe siècle

1869 (T9)-1871.

Annuaire encyclopédique : politique, économie sociale, statistique, administration, sciences, littérature, beaux-arts, agriculture, commerce, industrie / publié par les directeurs de l'Encyclopédie du XIXe siècle

1868 (T8).

Annuaire encyclopédique : politique, économie sociale, statistique, administration, sciences, littérature, beaux-arts, agriculture, commerce, industrie / publié par les directeurs de l'Encyclopédie du XIXe siècle

1867.

Annuaire encyclopédique : politique, économie sociale, statistique, administration, sciences, littérature, beaux-arts, agriculture, commerce, industrie / publié par les directeurs de l'Encyclopédie du XIXe siècle

1864.