| Titre : | Electrical Penetration Graph analysis reveals population differentiation of host-plant probing behaviors within the aphid species Uroleucon ambrosiae |
| Auteurs : | E. Bernays ; D. Funk |
| Type de document : | article/chapitre/communication |
| Année de publication : | 2000 |
| Format : | 183-191 |
| Langues: | = Anglais |
| Mots-clés: | Uroleucon ; aphid ; host plant selection ; diet breadth ; electrical penetration graph ; behavioral efficiency ; genetic variation ; Comportement alimentaire ; Actographie ; Biotype ; Choix de la plante hote ; Uroleucon ambrosiae ; Aphididae ; Ambrosia trifida ; Asteraceae |
| Résumé : | Uroleucon ambrosiae collected from the eastern and the southwestern United States were studied in relation to host-plant probing. In the field, eastern aphids are highly specific on Ambrosia trifida, while southwestern aphids feed on Ambrosia trifida plus many other species in the family Asteraceae. Electrical penetration graphs of insects on the principal host, A. trifida, and an additional host of southwestern populations, Heterotheca subaxillaris, revealed regional differentiation in host-associated aphid behaviors, specifically in the first phase of subcuticular probing, and in phloem finding activities. Eastern aphids used A. trifida more efficiently than southwestern aphids, but were demonstrably less vigorous in their probing activities on H. subaxillaris. |
| Source : | Entomologia Experimentalis Et Applicata - 0013-8703, vol. 97, n° 2 |
Exemplaires (1)
| Centre | Localisation | Section | Cote | Statut | Disponibilité |
|---|---|---|---|---|---|
| Poitou-Charentes | ERIST Poitou-Charentes - Lusignan | Base Aphide | A4C1E2 | Empruntable | Disponible pour le prêt |
