Tracing prey origins, proportions and feeding periods for predatory beetles from agricultural systems using carbon and nitrogen stable isotope analyses

Ouyang, Fang; Yang, Bing; Feng, Yuqian; Ge, Feng

doi:10.1016/j.biocontrol.2014.01.001

Cited by 10 publications

(10 citation statements)

References 36 publications

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“…Aphids were chosen as the reference of the crop d 13 C signature, as they reflect the carbon isotope ratios of their diet (Vialatte et al 2006;Madeira et al 2013;Ouyang et al 2014) and are among the most important pests of alfalfa and maize (Summers 1998;Pons et al 2005;Meissle et al 2010). They also are the main prey of the studied coccinellids and are cropspecific (Blackman and Eastop 2000), so that no switching between the two crops occurs.…”

Section: Insect Samplingmentioning

confidence: 99%

Movement of three aphidophagous ladybird species between alfalfa and maize revealed by carbon and nitrogen stable isotope analysis

et al. 2015

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The movement between alfalfa and maize of three of the most common aphidophagous coccinellids in southern Europe was determined using carbon and nitrogen stable isotope analysis at four periods during the growing season. The isotope analysis revealed movement between alfalfa and maize but patterns were different between the three species. While Coccinella septempunctata L. (Coleoptera: Coccinellidae) only moved from alfalfa to maize, Propylea quatuordecimpunctata L. (Coleoptera: Coccinellidae) continuously dispersed between the two adjacent crops. Hippodamia variegata Goeze (Coleoptera: Coccinellidae) showed an intermediate pattern. Results suggest that, while alfalfa acts as a source of the three species to maize, maize also plays a role as a source of P. quatuordecimpunctata and H. variegata to alfalfa. The specific movement traits that emerged for the three coccinellid species suggest that crop management affects them differently and point out that the association between crops is very valuable for improving coccinellid biological control services.

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Section: Insect Samplingmentioning

confidence: 99%

Movement of three aphidophagous ladybird species between alfalfa and maize revealed by carbon and nitrogen stable isotope analysis

et al. 2015

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“…For an accurate estimate of larval food history, the isotope ratio of the egg may be more suitable than that of the imago. However, it is known that the carbon and nitrogen isotope ratios of imago tissues (abdomen and wing) well reflect their adult diet history in predatory ladybird beetles (Ouyang et al, 2014). The isotope composition of eggs should also change in those insects with functional mouthparts.…”

Section: Sexual Differencesmentioning

confidence: 99%

Isotopic fractionation with morphological change and sexual specificity in the lappet moth Euthrix potatoria

Sato

Azuma

2016

Entomologia Exp Applicata

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The δ15N values of adult holometabolous insects exceed those of larvae, but otherwise little information on terrestrial invertebrates has been obtained in food‐web analyses using stable isotope ratios (δ15N, δ13C). Changes in δ13C during metamorphosis and differences between males and females have not been examined. We collected the larvae and cocoons of Euthrix potatoria (L.) (Lepidoptera: Lasiocampidae) in the field and used them to assess the species’ isotopic fractionation. Each emerged moth was divided into five body parts. We conducted stable N and C isotope analyses for each body part, as well as for cocoons and exuviae, and also compared stable isotope ratios between sexes. We confirmed δ15N enrichment through metamorphosis and estimated that δ15N enrichment is accomplished by the relative concentration of 15N due to the excretion of copious meconium, which contains abundant 14N. We also observed changes in δ13C values through metamorphosis. Both isotope values tended to change more in males than in females. The proportion of the whole‐adult weight represented by meconium was higher in males than in females, suggesting that high meconium secretion in males contributes to the sexual difference in δ15N. These phenomena may be common in Holometabola, which require a pupal stage. For more accurate food‐web assessments, it is important to consider stable isotope changes during different life cycles, as well as sexual differences.

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“…The equilibrium ratios can be vertically transferred along the food chain through consumption (Kelly, 2000;McCutchan Jr et al, 2003). Variation of stable isotope ratios through trophic levels have proven useful in traceability studies aimed at food quality control (Bateman, Kelly & Jickells, 2005;Camin et al, 2011;Rogers, 2008;Rossmann, 2001), organismal (Heinrich & Collins, 2017;Hobson, Wassenaar & Taylor, 1999;Ouyang et al, 2014) and system ecology (Boecklen et al, 2011;Boyer, Snyder & Wratten, 2016;Gratton & Denno, 2006;Hood-Nowotny & Knols, 2007;Hyodo et al, 2010;Scheunemann et al, 2016). Additionally, fertilizers or diets that differ in their isotopic composition can be used to study their effects on plant and animal isotope abundance among individuals of the same species (Bateman, Kelly & Jickells, 2005;DeNiro & Epstein, 1978;Oelbermann & Scheu, 2002;Tillberg & Breed, 2004;Webb, Simpson & Hedges, 1998).…”

Section: Introductionmentioning

confidence: 99%

“…Nitrogen (N) is one of the bio-elements of the ecosystem that is poly-isotopic and has been widely used in agriculture, food science (Camin et al, 2011;Mariotti et al, 1981) and ecology studies (Boecklen et al, 2011;Boyer, Snyder & Wratten, 2016;Gratton & Denno, 2006;Hood-Nowotny & Knols, 2007;Hyodo et al, 2010;McCutchan Jr et al, 2003;Ouyang et al, 2014;Scheunemann et al, 2016). Previous works have made relevant progresses in quantifying N isotope patterns of plants and soils at local to global scales as well as the mechanisms that underlie these patterns including the possible difficulties that come with interpreting isotope data (e.g., species-specific fractionation rates) (Craine et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of δ¹⁵N analysis to trace the origin of Diaphorina citri (Hemiptera: Liviidae) to citrus orchard fertilization management

Gómez-Marco

Yoshimoto

Braswell³

et al. 2020

PeerJ

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We investigated the variability of nitrogen stable isotope ratios 15N/14N (expressed as δ15N) on citrus orchards with different fertilization management practices (organic versus conventional) and its correlation with the δ15N values of the key citrus pest Diaphorina citri Kuwayama (Hemiptera: Liviidae) feeding on such plant material. Tracing the origin of this pest in open field is crucial since the insect is a vector of the incurable and devastating citrus disease known as Huanglongbing. We hypothesized that the origin (natal tree) of the pest may be deduced by correlating the δ15N values obtained from the young citrus leaves and from adults of D. citri raised on them. First, laboratory experiments were performed to understand the acquisition and incorportation of the δ15N values by D. citri. Second, we confirmed the positive correlation between the δ15N values of the young citrus leaves and D. citri. Finally, field sampling was carried out in 21 citrus orchards from Southern California to study the variability on the δ15N values on organic and conventional commercial citrus orchards. Laboratory results suggest that the analyses of the δ15N values can be regarded as a useful method to trace the origin of the pest. However, the high variability in nitrogen resource used in both fertilization management practices (especially in organic orchards) by growers makes the application of this technique unfeasible to pinpoint the origin of D. citri in the citrus agroecosystem.

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Tracing prey origins, proportions and feeding periods for predatory beetles from agricultural systems using carbon and nitrogen stable isotope analyses

Cited by 10 publications

References 36 publications

Movement of three aphidophagous ladybird species between alfalfa and maize revealed by carbon and nitrogen stable isotope analysis

Movement of three aphidophagous ladybird species between alfalfa and maize revealed by carbon and nitrogen stable isotope analysis

Isotopic fractionation with morphological change and sexual specificity in the lappet moth Euthrix potatoria

Evaluation of δ¹⁵N analysis to trace the origin of Diaphorina citri (Hemiptera: Liviidae) to citrus orchard fertilization management

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Tracing prey origins, proportions and feeding periods for predatory beetles from agricultural systems using carbon and nitrogen stable isotope analyses

Cited by 10 publications

References 36 publications

Movement of three aphidophagous ladybird species between alfalfa and maize revealed by carbon and nitrogen stable isotope analysis

Movement of three aphidophagous ladybird species between alfalfa and maize revealed by carbon and nitrogen stable isotope analysis

Isotopic fractionation with morphological change and sexual specificity in the lappet moth Euthrix potatoria

Evaluation of δ15N analysis to trace the origin of Diaphorina citri (Hemiptera: Liviidae) to citrus orchard fertilization management

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Evaluation of δ¹⁵N analysis to trace the origin of Diaphorina citri (Hemiptera: Liviidae) to citrus orchard fertilization management