Leaf Age as a Predictor of Herbivore Distribution and Abundance

Raupp, Michael J.; Denno, Robert F.

doi:10.1016/b978-0-12-209160-5.50010-6

Cited by 224 publications

(172 citation statements)

References 79 publications

Supporting

Mentioning

162

Contrasting

Unclassified

Order By: Relevance

“…The new leaves sometimes have different defensive and nutritional chemical characteristics than original leaves (Feeny 1970, Raupp and Denno 1983, Williams et al 1983a. In our experiment, young and mature leaves of UBC alders were equally good food for fall webworm larvae.…”

Section: !69mentioning

confidence: 63%

“…Barbosa & Greenblatt (1978) found that fall webworm larvae ate more young leaves than old leaves in choice experiments. If larvae grow more poorly on old leaves, then tent caterpillar herbivory might improve food quality for fall webworan larvae by increasing the number of young leaves available in the fall (see Raupp and Denno 1983). To test this prediction, the effects of leaf age on larval growth were examined using mature (older, fully expanded) leaves from unattacked UBC alders and young (node no.…”

Section: Deterioration" Effects Of Leaf Age After Defoliation Bymentioning

confidence: 99%

See 1 more Smart Citation

Previous herbivore attack of red alder may improve food quality for fall webworm larvae

1984

View full text Add to dashboard Cite

Summary. Three hypotheses of insect-plant interactions were tested by rearing fall webworm larvae in the laboratory on foliage from red alder trees with different histories of western tent caterpillar herbivory. Fall webworm larvae raised on foliage from trees which had been attacked previously for two summers by moderate densities of western tent caterpillars grew faster and attained heavier pupal weights than did those fed foliage from unattacked trees. This contradicts the hypothesis that moderate levels of previous herbivory induces the production of plant defensive chemicals in red alders. Growth of webworms, when fed foliage from unattacked trees adjacent to alders that were attacked by fall webworm larvae, was the same as when fed foliage from trees isolated by distance from attacked trees. This contradicts the hypothesis that attacked trees stimulate the production of defensive chemicals in neighboring trees. Young and mature alder foliage was equally good for fall webworm growth and survival, and foliage from trees heavily attacked by both fall webworm and western tent caterpillars for three years produced slow growth rates and small pupal sizes. This supports the hypothesis that continued heavy insect attack can cause the deterioration of the food quality of attacked trees.

show abstract

Section: !69mentioning

confidence: 63%

Section: Deterioration" Effects Of Leaf Age After Defoliation Bymentioning

confidence: 99%

Previous herbivore attack of red alder may improve food quality for fall webworm larvae

1984

View full text Add to dashboard Cite

show abstract

“…Changes in plant nutritional quality according to ontogenetic processes (maturation), physiological processes (senescence), abiotic or biotic environmental variables have been shown to strongly affect the population dynamics of a broad range of phytophagous insects (e.g., Feeny 1970;Raupp and Denno 1983). Decrease in foliar nutritional quality with leaf age due to maturation and senescing processes constrains many phytophagous insects to a single generation in a season (e.g., Feeny 1970;Potter and Kimmerer 1989).…”

Section: −1mentioning

confidence: 99%

Leaf-Miners Co-opt Microorganisms to Enhance their Nutritional Environment

et al. 2013

View full text Add to dashboard Cite

Organisms make the best of their mother's oviposition choices and utilize specific feeding options that meet energetic requirements and cope with environmental constraints. This is particularly true for leaf-miner insects that develop enclosed in the two epidermis layers of a single leaf for their entire larval life. Cytokinins (CKs) play a central role in plant physiology -including regulation of senescence and nutrient translocation -and, as such, can be the specific target of plant exploiters that manipulate plant primary metabolism. 'Green-islands' are striking examples of a CKinduced phenotype where green areas are induced by plant pathogens/insects in otherwise yellow senescent leaves. Here, we document how the leaf-miner caterpillar Phyllonorycter blancardella, working through an endosymbiotic bacteria, modifies phytohormonal profiles, not only on senescing (photosynthetically inactive) but also on normal (photosynthetically active) leaf tissues of its host plant (Malus domestica). This leaf physiological manipulation allows the insect to maintain sugar-rich green tissues and to create an enhanced nutritional microenvironment in an otherwise degenerating context. It also allows them to maintain a nutritional homeostasis even under distinct leaf environments. Our study also highlights that only larvae harboring bacterial symbionts contain significant amounts of CKs that are most likely not plant-derived. This suggests that insects are able to provide CKs to the plant through their symbiotic association, thus extending further the role of insect bacterial symbionts in plant-insect interactions.

show abstract

“…The processes of physiological ageing of individualised leaves (Raupp & Denno 1983) and plants (Wilde et al 1969, van Emden & Bashford 1971 are important for herbivore life history. Therefore, insect attack should be influenced by the ontogenetic changes in the host plant quality.…”

mentioning

confidence: 99%

Performance of an oligophagous insect in relation to the age of the host plant

Campos¹,

Schoereder²,

Picanço³

2003

Neotrop. Entomol.

View full text Add to dashboard Cite

Performance de um Inseto Oligófago em Relação à Idade da Planta Hospedeira RESUMO -A performance de insetos folívoros monófagos e oligófagos deveria ser afetada negativamente pelo envelhecimento das suas plantas hospedeiras. Plutella xylostella L. (Lepidoptera: Yponomeutidae), uma especialista em Cruciferae, foi criada em laboratório com folhas destacadas de repolho (Brassica oleraceae var. capitata). Foram utilizadas a quarta folha expandida de plantas de diferentes idades mais as folhas dos três estratos da planta madura. O envelhecimento da planta aumentou a mortalidade preimaginal e reduziu a taxa de desenvolvimento das larvas, o peso das pupas e a fecundidade dos adultos. A taxa reprodutiva líquida (Ro) e a taxa intrínseca de crescimento populacional (r) diminuíram com o envelhecimento da planta. Nenhuma das categorias de folhas da planta madura mostrou-se qualitativamente superior às folhas de plantas mais jovens. Se em condições de campo existir uma correlação positiva entre preferencia de oviposição e performance da prole, espera-se uma tendência temporal decrescente na intensidade de ataque de larvas ao longo do desenvolvimento da planta. PALAVRAS-CHAVE: Desenvolvimento larval, sucesso reprodutivo, fenologia da planta, Plutella xylostella, LepidopteraABSTRACT -The performance of monophagous and oligophagous herbivore insects should be negatively influenced by the ageing of their host plants. Plutella xylostella L. (Lepidoptera: Yponomeutidae), a specialist in Cruciferae, was reared in the laboratory on detached cabbage leaves (Brassica oleraceae var. capitata). We used fourth expanded leaves from differently aged plants, and leaves from three strata of the mature plant. Plant ageing increased pre-imaginal mortality and reduced larval developing rate, pupae weight, and fecundity. The insect net reproductive rate (Ro) and intrinsic rate of population growth (r) decreased as plant aged. No leaf category of mature plants was qualitatively superior to leaves from younger plants. If there exist a positive correlation between oviposition preference and offspring performance, in field conditions, a decreasing temporal trend in the intensity of attack along the host plant development can be expected.

show abstract

Leaf Age as a Predictor of Herbivore Distribution and Abundance

Cited by 224 publications

References 79 publications

Previous herbivore attack of red alder may improve food quality for fall webworm larvae

Previous herbivore attack of red alder may improve food quality for fall webworm larvae

Leaf-Miners Co-opt Microorganisms to Enhance their Nutritional Environment

Performance of an oligophagous insect in relation to the age of the host plant

Contact Info

Product

Resources

About