Talk:Helleria brevicornis

A fact from Helleria brevicornis appeared on Wikipedia's Main Page in the Did you know column on 14 August 2018 (check views). The text of the entry was as follows:

Did you know... that Helleria brevicornis is the only terrestrial woodlouse that has retained the ancestral aquatic isopod behaviour of mate guarding?

A record of the entry may be seen at Wikipedia:Recent additions/2018/August. The nomination discussion and review may be seen at Template:Did you know nominations/Helleria brevicornis.

Wikipedia

French references

Some key references for this article are in French. I used my school-level knowledge of French and online translation services for references from [VANDEL 1960] and [MEAD & GABOURIAUT 1977] (which has an English summary). Some French language references not used:

MEAD, F. (1963) Sur l'existence d'une cavite incubatrice complexe chez l'isopode terrestre Helleria brevicornis Ebner. C.R.Acad.Sci. 257, p.775-777
MEAD, F. (1964). Sur l'existence d'une chevauchée nuptiale de longue durée chez l'Isopode terrestre Helleria brevicornis Ebner. C.R.Acad.Sc. 258, p.5268-527
MEAD, F. (1965). Observations sur l'accouplement chez l'Isopode terrestre Helleria brevicornis Ebner. C.R.Acad.Sc. 261, p.1752-1755
MEAD, F. (1976). La place de l'accouplement dans le cycle de reproduction des Isopodes terrestres (Oniscoidea). Crustaceana 31, p.27-41
MEAD, F. & GABOURIAUT, D. (1971). Déclenchement du comportement sexuel du male d'Helleria brevicornis Ebner (Isopode terrestre) par la mue du partenaire. C.R.Acad.Sc. 272, p.1538-1541
MEAD, F. & GABOURIAUT, D. (1988b) Influence du groupement dur la formation du marsupium et la production des jeunes chez Helleria brevicornis (Ebner) (lsopoda, Oniscoidea, Tylidae). Crustaceana 54:244-255
DELALEU J.C., GIRY G. (1967) Les organes neuro-hemaux cephaliques et leurs correlations avec l'organe Y, le systeme stomatogastrique et le tronc cardiaque chez l'oniscoide Helleria brevicornis (Ebner). C.R.Acad.Sci. 264, p641-642
HOARAU F., HIRN M. (1978) Evolution du taux des ecdysteroides au cours du cycle de mue chez Helleria brevicornis Ebner (lsopode terrestre). C.R.Acad.Sci. Ser.D 286, p.1443-1446

Hint, hint & [Comptes rendus de l'Académie des Sciences back catalog]. In case anyone is interested in and capable of pursuing these sources. Edit-pi (talk) 07:49, 24 July 2018 (UTC)[reply]

Brevicornis is not semelparous, elaboration

This is elaborating on this edit I made. This source was cited when the article here explained that brevicornis is semelparous and only produces young once in its lifetime, when brevicornis can produce several broods, it just cannot store sperm and must breed with a new male every time it wants to have a brood.

In the abstract of the cited source, it says: "Finally, in two species of the family Tylidae, Tylos europaeus and Helleria brevicornis, the female genital system lacks specialized structures for sperm storage, and every oviposition requires a mating for the eggs fertilization."

The introduction in the next page says: "Some species of oniscideans are known to be semelparous, e.g. Tylos punctatus, (Hamner et al. 1969), Hemilepistus reamuri (Warburg 1987) and Schizidium tiberianum (Warburg & Cohen 1991; Warburg et al. 1993), whose females breed only once in their reproductive lifetime."

I'm guessing these two just got mixed up. PoetaCorvi (talk) 05:05, 21 January 2024 (UTC)[reply]