Die u:cris Detailansicht:
Size and dispersion of urticating setae in three species of processionary moths
- Autor(en)
- Edoardo Petrucco Toffolo, Daniel Zovi, Chiara Perin, Paolo Paolucci, Alain Roques, Andrea Battisti, Helmuth Horvath
- Abstrakt
Larvae of the processionary moths of the
Palaearctic region bear urticating setae that are released against
vertebrate predators, especially insectivorous birds. A few species are
pests of forest and urban trees and, consequently, may threaten human
and animal health during outbreaks, causing dermatitis, conjunctivitis
and respiratory distress. Although some studies provide detailed
information about the setae, particularly those of the pine
processionary moth Thaumetopoea pityocampa, there is little
knowledge on the morphological traits of the setae and their release by
the larvae. In the present study we identify major traits of the setae
of 3 species of processionary moth, T. pityocampa, T. pinivora and T. processionea,
which are potentially helpful in the understanding of setae dynamics in
the environment: (i) diameter and length of setae and (ii) analysis of
dynamical properties of the setae in the airborne state. Setae are
highly variable in size, with bimodal distribution in T. pityocampa and T. pinivora;
in these 2 species, short and long setae are interspersed within the
integument fields where they occur. The difference in the seta size has
important consequences in dispersion, as smaller setae can spread 5
times further than their bigger counterparts. This information is
relevant for a full understanding of the defensive importance of larval
setae against natural enemies of the processionary moths, as well for
elucidating the importance of the processionary setae as air pollutants,
both close to the infested trees and at longer distances.
- Organisation(en)
- Aerosolphysik und Umweltphysik
- Externe Organisation(en)
- Università degli Studi di Padova, INRA - Institut national de la recherche agronomique
- Journal
- Integrative Zoology
- Band
- 9
- Seiten
- 320-327
- Anzahl der Seiten
- 8
- ISSN
- 1749-4869
- DOI
- https://doi.org/10.1111/1749-4877.12031
- Publikationsdatum
- 06-2014
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103037 Umweltphysik, 106054 Zoologie
- Schlagwörter
- ASJC Scopus Sachgebiete
- Animal Science and Zoology
- Sustainable Development Goals
- SDG 3 – Gesundheit und Wohlergehen
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/07b66b0f-1867-43f9-9975-5e4123a8d7fc