Timing, Magnitude, Rates, and Putative Causes of Predator Movement Between Cotton and Grain Sorghum Fields

Prasifka, Jarrad R.; Heinz, Kevin M.; Sansone, Chris

doi:10.1603/0046-225x-33.2.282

Cited by 14 publications

(11 citation statements)

References 28 publications

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“…This study used stable carbon isotopes to study movement and reproduction in a predatory insect, and the inferences regarding beetle movement agree with those of a concurrent study using more traditional mark–capture techniques (Prasifka et al ., 2004b). In both study years, movement of H. convergens adults from grain sorghum into nearby cotton began at the earliest stages of cotton growth, and appeared to continue for several weeks.…”

Section: Discussionsupporting

confidence: 67%

“…Combined, these observations suggest that adult movement of H. convergens from grain sorghum continued for the duration of sample collection. These conclusions are supported by results from a concurrent mark–capture movement study that included two of the four fields used in isotope collections (Prasifka et al ., 2004b).…”

Section: Discussionsupporting

confidence: 52%

“…Nevertheless, potential alternate prey [nymph and adult populations of the cotton fleahopper, Pseudatomoscelis seriatus (Reuter)] were abundant in cotton throughout the area in 2001 (Prasifka et al ., 2004a). A competing hypothesis that beetles may have moved continuously between cotton and sorghum during 2001 (at similar rates, feeding in both locations) was also considered after data analysis was completed; however, because aphid populations in sorghum decline markedly by mid to late June (Krauter et al ., 2001) and concurrent mark–capture results (Prasifka et al ., 2004b) indicated movement by H. convergens from cotton to sorghum was uncommon, this possibility was eliminated.…”

Section: Discussionmentioning

confidence: 85%

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Crop colonisation, feeding, and reproduction by the predatory beetle, Hippodamia convergens, as indicated by stable carbon isotope analysis

Prasifka

Heinz

Winemiller

2004

Ecological Entomology

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1. Habitat management to enhance natural enemy populations in agricultural systems may help regulate levels of crop pests, but little research addresses the behaviour of immigrating beneficial insects.2. Stable carbon isotopes were used in complementary laboratory and field studies to examine colonisation behaviour of an ephemeral agricultural habitat by the lady beetle, Hippodamia convergens Gue´rin-Me´neville.3. Under laboratory conditions, H. convergens carbon isotope ratios, d 13 C, changed after its food supply was shifted from a C 4 -to a C 3 -based diet of aphids produced on grain sorghum or cotton respectively. Final isotope ratios of adult H. convergens were closer to that of the new C 3 -based diet, with most change in d 13 C occurring within 3 days after the diet shift.4. The carbon isotope ratios of lady beetle adults collected in cotton fields suggested that grain sorghum was a continuous source for H. convergens until many nearby sorghum fields matured and senesced. 5. When cotton aphid (Aphis gossypii Glover) prey were absent, carbon isotope ratios of beetle populations did not change over time and virtually no egg production by H. convergens was detected. This indicates that beetles were feeding little on non-aphid resources originating in cotton.6. With cotton aphids present, beetle isotope ratios decreased towards the carbon isotope ratio of cotton, indicating adult feeding in cotton. As a result, egg masses produced had carbon isotope ratios in the C 3 range of values.7. The results suggest that some predator species may be retained in habitats without large prey populations, a quality essential in controlling pests in agricultural systems.

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Section: Discussionsupporting

confidence: 67%

Section: Discussionsupporting

confidence: 52%

Section: Discussionmentioning

confidence: 85%

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Crop colonisation, feeding, and reproduction by the predatory beetle, Hippodamia convergens, as indicated by stable carbon isotope analysis

Prasifka

Heinz

Winemiller

2004

Ecological Entomology

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“…in cotton can move approximately 15 m/day (Prasifka et al. ). However, there is no information available on how far O. majusculus is able to move in maize.…”

Section: Discussionmentioning

confidence: 99%

Effects of weed density on the dispersal of Orius majusculus Reuter (Heteroptera Anthocoridae) within maize

Madeira

Pons

2015

J Applied Entomology

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Orius majusculus Reuter (Heteroptera: Anthocoridae) is the most common and abundant generalist predator in Spanish maize crops and is sensitive to drastic changes in weed density. We carried out a 2‐year study in the NE Iberian Peninsula to examine the dispersal of O. majusculus in maize plots with moderately high and low weed density. Insects were collected using yellow sticky traps and/or a bug‐vac aspirator. Dispersal was assessed using rubidium as a marker. Dispersal rate of O. majusculus differed between sampling periods, with a maximum between the 16 unfolded leaves (V16) to grain milky (R3) maize growth stages. However, we detected no differences in the distance moved by male and females of O. majusculus from rubidium‐marked areas in plots with moderately high or low weed density suggesting that changes in weed density do not affect the dispersal of O. majusculus within a maize field.

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“…In our case, the dispersion distances of psyllids such as C. visci, the main specialist of V. album, are highly variable, that is, from few meters to kilometres (van den Berg & Deacon, 1988;Boina et al, 2009;Henne et al, 2010;Kobori et al, 2011;Lewis-Rosenblum et al, 2015). Similarly, species of the family Anthocoridae, such as the main specialist predator inhabiting V. album, has a dispersal distance of several meters per day (Prasifka et al, 2004;Madeira & Pons, 2015). Thus, the distance between mistletoes does not limit the colonisation ability of the arthropod community associated with mistletoes.…”

Section: Plant Scale: Size Distances and Temporal Variationmentioning

confidence: 74%

Ecological assembly rules on arthropod community inhabiting mistletoes

Lázaro‐González

Hódar

Zamora

2020

Ecological Entomology

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1. The colonisation of a new habitat by a community is led by deterministic and stochastic processes at different spatio‐temporal scales. Parasitic plants, such as mistletoe, represent a new habitat within forest canopy that is free to be colonised by many organisms. 2. This study investigates how ecological factors operating at forest and plant scales drive changes in both specialist (mistletoe‐dwelling) and tourist (transient visitors) arthropod communities inhabiting European mistletoe, Viscum album subsp. austriacum, in a Mediterranean pine forest. The influence of elevation along a broad elevational gradient was tested by sampling arthropod communities dwelling in mistletoe plants and host pine branches and the effects of mistletoe plant size, distances to other mistletoes, and temporal variation in arthropod assemblages inhabiting mistletoes. 3. The diversity of the specialist community remained constant along the elevational gradient and over the summer period, while the tourist and pine‐dwelling arthropod communities showed species turnover. Larger mistletoes were occupied by more species and individuals, whereas more isolated mistletoes presented the same equilibrium point as the more aggregated ones. Thus, mistletoe size is key to the composition of the arthropod community. 4. In conclusion, this study's findings indicate contrasting assembly rules for specialised and tourist arthropod communities associated with mistletoe. The specialist community was highly stable and followed a deterministic trophic sequence of colonisation as the assemblage rule: first, colonisation by the main specialist herbivore, Cacopsylla visci, and, second, by its predator Anthocoris visci. Meanwhile, the tourist community, being a subset of the arthropod assemblage of the pine, acts independent of mistletoe presence.

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Timing, Magnitude, Rates, and Putative Causes of Predator Movement Between Cotton and Grain Sorghum Fields

Cited by 14 publications

References 28 publications

Crop colonisation, feeding, and reproduction by the predatory beetle, Hippodamia convergens, as indicated by stable carbon isotope analysis

Crop colonisation, feeding, and reproduction by the predatory beetle, Hippodamia convergens, as indicated by stable carbon isotope analysis

Effects of weed density on the dispersal of Orius majusculus Reuter (Heteroptera Anthocoridae) within maize

Ecological assembly rules on arthropod community inhabiting mistletoes

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