Notice bibliographique
Résumé
Dynamena pumila (Linnaeus, 1758) Fig. 34 Sertularia pumila Linnaeus, 1758: 807.— Lindström, 1856b: 365, pl. 13, A, figs. 1–23.— Segerstedt, 1889: 18, 27.— Lönnberg, 1898: 53; 1899b: 17; 1903: 60.— Jäderholm, 1909: 96, pl. 11, figs. 1–3. Sertularia (Dynamena) pumila.— Gislén, 1930: 346. Dynamena pumila.— Jägerskiöld, 1971: 62.— Cornelius, 1979: 271. Type locality. England: Sussex, Rottingdean (Cornelius 1979: 271). Museum material. Kosterhavet, 58°49.953’N, 11°02.072’E, 26 m, 07.ix.2010, biological dredge, R / V Nereus, one colony, to 7 mm high, without gonophores, ROMIZ B3903. FIGURE 35. Hydrallmania falcata: part of hydrocaulus with two branches and hydrothecae, ROMIZ B3900. Scale equals 0.5 mm. Remarks. Taxonomic reviews of Dynamena pumila (Linnaeus, 1758) have been given in works including those of Cornelius (1979, 1995b), and need not be repeated here. This well-known boreal and largely intertidal species is abundant on fucoid algae (especially Ascophyllum nodosum and Fucus spp.) and underlying rocky substrates on shores of northwestern Europe and northeastern North America. Hydroids of D. pumila are well-adapted to environmental stresses of life in the intertidal zone, and they occur in both wave-sheltered and wave-exposed areas (Rossi et al. 2000). The location of colonies on algal substrates varies depending on exposure, with those from sheltered areas occurring on mid- to upper parts of thalli and those from more exposed areas occupying areas towards the base (Cornelius 1979). On very high-energy shores, Cornelius noted that colonies may be restricted to crevices and to the undersides of overhangs. On very sheltered shores, they tend to occur in areas of maximum tidal flow. He also reported that hydrothecae of specimens from an exposed site had thicker perisarc and were notably smaller than those from an exposed site. Annulations on the stem facilitate bending, and basal articulating joints allow flexing of up to 180° in either direction (Hughes 1992). These skeletal structures facilitate feeding and minimize the risk of breakage or complete dislodging of the colony from its substrate under high-energy conditions. The ability of the stem to flex and bend also allows the colony to lie against the substrate during exposure at low tides, reducing the risk of desiccation. At the northern limits of its range, D. pumila survives an extended period of the year as dormant tissue in stems and stolons. Colonies that I observed in southern Labrador during early summer (late June and early July, 2000) were just beginning growth. Further south in the Bay of Fundy region, eastern Canada, the species declines significantly in abundance during winter but nevertheless remains active all year (Henry 2001). Intertidal colonies of Dynamena pumila were frequently observed in the study area during the workshop at Tjärnö in late summer 2010 on both attached and detached fucoids. Material listed above (ROMIZ B3903) was found in deeper waters but occurred on a detached algal thallus. At water temperatures of about 17º C, these hydroids were active but frequently overgrown by algae and diatoms. The species is common as well in Danish waters (Kramp 1935b) and in the Oslofjord, Norway (Christiansen 1972). Reported distribution. West coast of Sweden.—Koster area to the Öresund (Jäderholm 1909, as Sertularia pumila). Elsewhere.—Boreal waters of the North Atlantic from the Barents and White seas to Portugal in Europe (da Cunha 1944; Naumov 1960; Cornelius 1995b), and from southern Labrador to New Jersey in North America (Fraser 1944, as Sertularia pumila).
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,002 | 0,001 |
| Études des sciences et des technologies | 0,002 | 0,000 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,000 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,025 | 0,008 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».