The nutritional ecology of larvae of Alsophila pometaria and Anisota senatoria feeding on early- and late-season oak foliage
dc.contributor.author | Martin, Michael M. | en_US |
dc.contributor.author | Martin, J. S. | en_US |
dc.contributor.author | Kukor, Jerome J. | en_US |
dc.contributor.author | Lawson, D. L. | en_US |
dc.contributor.author | Merritt, Richard W. | en_US |
dc.date.accessioned | 2006-09-08T20:38:07Z | |
dc.date.available | 2006-09-08T20:38:07Z | |
dc.date.issued | 1984-01 | en_US |
dc.identifier.citation | Lawson, D. L.; Merritt, R. W.; Martin, M. M.; Martin, J. S.; Kukor, J. J.; (1984). "The nutritional ecology of larvae of Alsophila pometaria and Anisota senatoria feeding on early- and late-season oak foliage." Entomologia Experimentalis et Applicata 35(2): 105-114. <http://hdl.handle.net/2027.42/42708> | en_US |
dc.identifier.issn | 0013-8703 | en_US |
dc.identifier.issn | 1570-7458 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/42708 | |
dc.description.abstract | The larvae of Alsophila pometaria (Harr.), feeding on the young foliage of oak, has a higher relative growth rate (RGR) and relative nitrogen accumulation rate (RNAR) than the larvae of Anisota senatoria (J. E. Smith), feeding on the mature foliage of oak. Although the young oak foliage is more efficiently digested by A. pometaria (higher AD's), it is not more efficiently assimilated and used for growth (no difference in ECI's). Thus, the higher growth rate of A. pometaria is due entirely to a higher consumption rate (RCR and RNCR). Young foliage is significantly higher in nitrogen and water than mature foliage, but phenol and tannin levels are comparable in young and old foliage. A. pometaria consumes the foliage of different oak species at the same rate, independent of nitrogen content, while A. senatoria increases its consumption rate in response to decreased nitrogen levels. As a result, the growth rate of A. pometaria is directly related to leaf nitrogen content, while the growth rate of A. senatoria is independent of leaf nitrogen. The two species of insects have digestive systems that are very similar biochemically, and that are well-designed for effective protein digestion. Tannins and phenols do not influence the nutrional indices of either species. We suggest that the major benefit of spring feeding is the availability of succulent, high-nitrogen foliage, and not the avoidance of high-tannin foliage. The spring feeder appears to have a feeding strategy that favors rapid growth at the expense of efficiency, while the late summer feeder has a strategy that favors efficiency over rate. Alimentées sur feuillage jeune de chêne, les chenilles d' Alsophila pometaria avaient un taux relatif de croissance (RGR) et un taux relatif d'accumulation d'azote (RNAR) plus élevés que les chenilles d' Anisota senatoria alimentées sur feuillage mûr de chêne. Bien que le jeune feuillage soit plus efficacement digéré par A. pometaria (AD plus élevé), il n'est pas assimilé et utilisé pour la croissance avec de meilleurs rendements (les ECI ne sont pas différents). Ainsi le taux de croissance plus élevé d' A. pometaria est dû entièrement à un taux de consommation plus important (RCR et RNCR). Le feuillage jeune est significativement plus riche en azote et en eau que le feuillage mûr, mais les niveaux de phénol et de tanins sont les mêmes. A pometaria consomme les feuilles de différentes espèces de chênes au même taux, indépendamment de la teneur en azote, tandis que A. senatoria accroît sa consommation en réponse à une diminution de la teneur en azote. Il en résulte que le taux de croissance d' A. pometaria dépend directement de la teneur en azote des feuilles, tandis que celui d' A. senatoria en est indépendant. Les systèmes digestifs des deux insectes sont biochimiquement semblables et sont efficaces pour la digestion des protéines. Les tanins et les phénols n'influent pas sur les indices nutritionnels de ces deux espèces. Nous estimons que le principal intérêt de l'alimentation printanière est la disponibilité en feuillage succulent, riche en azote, et non l'absence de feuilles à haute teneur en tanin. L'alimentation printanière semble correspondre à une strategie alimentaire qui favorise la croissance aux dépens de l'efficacité tandis que l'alimentation en fin d'été est une stratégie qui favorise l'efficacité sur la rapidité. | en_US |
dc.format.extent | 723082 bytes | |
dc.format.extent | 3115 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Kluwer Academic Publishers; Dr W. Junk Publishers ; Springer Science+Business Media | en_US |
dc.subject.other | Life Sciences | en_US |
dc.subject.other | Animal Systematics/Taxonomy/Biogeography | en_US |
dc.subject.other | Alsophila Pometaria | en_US |
dc.subject.other | Geometridae | en_US |
dc.subject.other | Anisota Senatoria | en_US |
dc.subject.other | Citheroniidae | en_US |
dc.subject.other | Quercus | en_US |
dc.subject.other | Nutritional Ecology | en_US |
dc.subject.other | Herbivory | en_US |
dc.subject.other | Nutritional Indices | en_US |
dc.subject.other | Consumption | en_US |
dc.subject.other | Growth | en_US |
dc.subject.other | Utilization Efficiency | en_US |
dc.subject.other | Nitrogen | en_US |
dc.subject.other | Water | en_US |
dc.subject.other | Tannins | en_US |
dc.subject.other | Phenols | en_US |
dc.subject.other | Gut PH | en_US |
dc.subject.other | Digestive Enzymes | en_US |
dc.title | The nutritional ecology of larvae of Alsophila pometaria and Anisota senatoria feeding on early- and late-season oak foliage | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Natural Resources and Environment | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Division of Biological Sciences, University of Michigan, 48109, Ann Arbor, MI, USA | en_US |
dc.contributor.affiliationum | Division of Biological Sciences, University of Michigan, 48109, Ann Arbor, MI, USA | en_US |
dc.contributor.affiliationum | Division of Biological Sciences, University of Michigan, 48109, Ann Arbor, MI, USA | en_US |
dc.contributor.affiliationother | Department of Entomology, Michigan State University, 48824, East Lansing, MI, USA | en_US |
dc.contributor.affiliationother | Department of Entomology, Michigan State University, 48824, East Lansing, MI, USA | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/42708/1/10667_2004_Article_BF00217527.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1007/BF00217527 | en_US |
dc.identifier.source | Entomologia Experimentalis et Applicata | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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