Effects of Foliage Age on Body Weight and Survival in Larvae of the Tribe Lithophanini (Lepidoptera: Noctuidae))

Schweitzer, Dale F.

doi:10.2307/3544752

Cited by 62 publications

(35 citation statements)

References 17 publications

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“…Herbivorous insects show a higher growth rate, higher survival rate and higher weight gain when feeding on young leaves (Schweitzer 1979, Dodds et al 1996, a fact observed in the present study for A. monuste feeding on kale leaves.…”

Section: Discussionsupporting

confidence: 66%

“…Besides the nutritional differences observed in plants, there are reports indicating the existence of nutritional differences between parts of the same host (Fernandes-daSilva & Zucoloto 1993, 1997, Catta-Preta & Zucoloto 2003, or, in the case of leaf-eaters, nutritional differences according to leaf age (Schweitzer 1979, Alonso & Herrera 2000. The ability of insects to respond to differences in the nutrient concentration represents a mechanism that helps in the location of the most adequate part (Edwards & Wratten 1981).…”

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confidence: 99%

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Effect of host age on the oviposition and performance of Ascia monuste Godart (Lepidoptera: Pieridae)

Bittencourt-Rodrigues¹,

Zucoloto²

2005

Neotrop. Entomol.

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Neotropical Entomology 34(2): 169-175 (2005) Efeitos da Idade do Hospedeiro na Oviposição e Performance de Ascia monuste Godart (Lepidoptera: Pieridae)RESUMO -Ascia monuste Godart, conhecida como a lagarta-da-couve, é especialista em Brassicaceae e representa um dos principais herbívoros dessa família na região neotropical. O objetivo do presente estudo foi determinar a performance e a preferência de oviposição de A. monuste por folhas de couve Brassica oleracea (Brassicaceae, var. acephala) de diferentes idades. Os parâmetros utilizados para medir a performance foram tempo para pupação e para emergência, porcentagem de emergência, índices digestórios, taxas de consumo e crescimento relativos, número de ovos por fêmea, porcentagem de eclosão e peso dos imagos. Análises químicas e físicas de folhas jovens e velhas de couve foram feitas. Em geral, imaturos que se alimentam de folhas jovens exibem melhor performance que aqueles que se alimentaram de folhas velhas. Entretanto, não houve diferença no número de ovos por fêmea, indicando mecanismos de compensação, uma vez que folhas velhas possuem menor quantidade de nitrogênio e maior dureza. Fêmeas de A. monuste preferem ovipositar em folhas jovens.PALAVRAS-CHAVE: Insecta, preferência de oviposição, idade da folha, comportamento alimentar ABSTRACT -Ascia monuste Godart, known as the kale caterpillar, has a specialized diet on Brassicaceae and represents one of the main herbivores of this family in the Neotropical region. The objective of the present study was to determine the performance and oviposition preference of A. monuste for common kale Brassica oleracea (Brassicaceae, var. acephala) of different ages. The parameters used to assess performance were time to pupation and emergence, emergence rate, digestive indices, relative consumption and growth rates, number of eggs per female, hatching rate, and weight of the imagoes. Chemical and physical properties of young and old kale leaves were determined. In general, caterpillars feeding on new leaves showed better performance than those feeding on old leaves. However, no significant difference in the number of eggs per female was observed, indicating a strategy of compensation, as old leaves contain a lower amount of nitrogen and are harder than young leaves. A. monuste females prefer to lay eggs on young leaves.

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Section: Discussionsupporting

confidence: 66%

mentioning

confidence: 99%

Effect of host age on the oviposition and performance of Ascia monuste Godart (Lepidoptera: Pieridae)

Bittencourt-Rodrigues¹,

Zucoloto²

2005

Neotrop. Entomol.

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“…Alonso and Herrera 2000), thus explaining differences in patterns of herbivore damage (e.g. Schweitzer 1979). Herbivory levels on mangroves, however, are not necessarily higher in young leaves (e.g.…”

Section: A Comparison Between Leaf Age Groupsmentioning

confidence: 98%

The Herbivore Assemblage, Herbivory and Leaf Chemistry of the Mangrove Kandelia obovata in Two Contrasting Forests in Hong Kong

Tong

Lee

Morton

2006

Wetlands Ecol Manage

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The herbivore assemblage, intensity of herbivory and factors determining herbivory levels on the mangrove Kandelia obovata (previously K. candel, Rhizophoraceae) were studied over a 13-month period at two forests with contrasting growing conditions in Hong Kong. Mai Po was part of an eutrophic embayment in the Pearl River estuary and generally offered more favourable conditions for mangrove growth, whereas Ting Kok had a rocky substratum and oceanic salinity. Twenty-four insect herbivore species were recorded on K. obovata, with lepidopteran larvae that consume leaf lamina being the dominant species. While leaf litter production was similar at the two forests, herbivory level at Mai Po (mean = 3.9% in terms of leaf area loss) was more severe than that at Ting Kok (mean = 2.3%). Peak herbivory levels were found in summer at both locations (6.5% for Mai Po and 3.8% for Ting Kok). Young leaves of K. obovata at both locations were generally preferred by the herbivores from the period of late spring to summer. Concentrations of most feeding deterrents (ash, crude fibre, and total soluble tannins) were significantly higher in both young and mature leaves at Ting Kok, whereas leaf nutrients (total nitrogen and water) were the same at the two sites. Young leaves at Ting Kok contained about 30% more tannins than their counterparts at Mai Po. Significant differences in leaf chemistry also existed between young and mature leaves at either site. The differences were concomitant with the observed patterns of leaf herbivory on K. obovata, and suggest a potential relationship between environmental quality and plant defence against herbivory.

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“…Native Lepidoptera may be impacted by induced increases in tannins or other defensive chemicals (Schultz and Baldwin 1982) in replacement leaves and the next season. Earlier than normal foliation the next spring (Heichel and Turner 1976) would affect synchrony of egg hatch and weight at maturity of spring feeders such as Xylenini and Alsophila (Schweitzer 1979, Schneider 1980. The main effect of foodplant changes will generally be small size and/or reduced fecundity (at least for Xylenini and Catocala, Schweitzer pers.…”

Section: Impacts Of Gypsy Moth Outbreaks On Native Lepidoptera and Otmentioning

confidence: 99%

Effects of gypsy moth establishment and dominance in native caterpillar communities of northern oak forests

Timms

Smith

2011

Can Entomol

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Little research has addressed the impacts of invasive-species establishment on native forest insect communities. Such information is lacking even for gypsy moth, Lymantria dispar (L.) (Lepidoptera: Erebidae), the most thoroughly studied invasive forest insect. We investigated the ecological impacts of gypsy moth on native species at sites in north-central Ontario, Canada, with and without significant histories of gypsy moth defoliation over a 2-year period. Patterns in native forest caterpillar communities are described using measures of species diversity and multivariate analysis. We documented a transition from low-level to dominant gypsy moth populations. Sites with different gypsy moth outbreak histories exhibited differences in rank-abundance distributions and dominance structures in the first year of the study; by the second year, gypsy moth was dominant at sites of both types irrespective of their previous defoliation history. Contrary to our predictions, we found that gypsy moth outbreak history had no significant effects on native caterpillar community diversity or structure. However, sites with currently high gypsy moth abundance demonstrated significant shifts in late-season caterpillar community structure. Our results suggest that observed community differences were due to the presence of a highly abundant folivore, and not to permanent shifts in the native community because of the introduction of an invasive species.

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Effects of Foliage Age on Body Weight and Survival in Larvae of the Tribe Lithophanini (Lepidoptera: Noctuidae))

Cited by 62 publications

References 17 publications

Effect of host age on the oviposition and performance of Ascia monuste Godart (Lepidoptera: Pieridae)

Effect of host age on the oviposition and performance of Ascia monuste Godart (Lepidoptera: Pieridae)

The Herbivore Assemblage, Herbivory and Leaf Chemistry of the Mangrove Kandelia obovata in Two Contrasting Forests in Hong Kong

Effects of gypsy moth establishment and dominance in native caterpillar communities of northern oak forests

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