Temperature-Dependent Biological and Demographic Parameters of Coleomegilla maculata (Coleoptera: Coccinellidae)

Morales-Ramos, Juan A.; Rojas, M. Guadalupe

doi:10.1093/jisesa/iex028

Cited by 9 publications

(2 citation statements)

References 40 publications

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“…The lower threshold temperature estimated to T. notata ( LT = 14.5 °C) falls within the range of threshold temperature of other coccinellids. For example, Morales‐Ramos and Rojas () found an LT = 13 °C for Coleomegilla maculata (DeGeer 1775), while Saeedi et al . () determined an LT = 11.5 °C for Cryptolaemus montrouzieri Mulsant, 1853.…”

Section: Discussionmentioning

confidence: 99%

Temperature and prey assessment on the performance of the mealybug predator Tenuisvalvae notata (Coleoptera: Coccinellidae)

et al. 2020

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Tenuisvalvae notata preys upon several mealybug species (Hemiptera: Pseudococcidae), a group of worldwide pests including Planococcus citri and Ferrisia dasyrilii. Although the consequences of variation in temperature for the development and reproduction of insects are generally appreciated, the consequences of potential interactions between temperature and prey for predatory insects are not. Thermal requirements and predation rates were determined for T. notata at different constant temperatures with both prey species. T. notata larvae developed to adults in experimental conditions > 18 to <38 °C. The upper thermal limit for egg hatch was 34 °C and for pupation was 33 °C. Adults reared at ≥32 °C did not lay eggs and survived less than 1 week. Prey species did not affect lower temperature thresholds or thermal constants for development from egg to adult. Furthermore, prey did not affect a number of reproductive traits, but the interaction between temperature and prey affected changes in developmental times and oviposition rate with age. Predation rate of T. notata increased as a function of temperature, and T. notata adults generally consumed more nymphs of P. citri than F. dasyrilii. These findings indicate that T. notata is well adapted to the tropical and sub‐tropical temperatures and may prove useful for the biological control of some native and non‐native mealybugs.

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Section: Discussionmentioning

confidence: 99%

Temperature and prey assessment on the performance of the mealybug predator Tenuisvalvae notata (Coleoptera: Coccinellidae)

et al. 2020

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“…become active or reach a critical life stage can help in managing them when they are a pest of managed bees (e.g., Farkas and Szalay 1985). By exploiting the fact that an insect's developmental rate is directly linked to the temperature of the environment (Powell and Logan 2005, Dixon et al 2009, Keena and Moore 2010, Regniere et al 2012, Prieto and Destouni 2015, Jiang et al 2016, Morales-Ramos and Rojas 2017, Geng and Jung 2018, Schoeller and Redak 2018), predictive models can be constructed. Development of M. acasta on M. rotundata occurs during managed incubation, the nesting season, and fall storage, for which temperatures can be controlled or at least recorded.…”

Section: Introductionmentioning

confidence: 99%

Life cycle of Melittobia acasta (Hymenoptera: Eulophidae) using Megachile rotundata (Hymenoptera: Megachilidae) as a host

Anderson

Creech

Pitts‐Singer³

2023

Annals of the Entomological Society of America

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Megachile rotundata F. is the primary commercial pollinator for alfalfa seed production in North America. Managed M. rotundata populations are susceptible to several mortality factors including attack by parasitoids. One such parasitoid, Melittobia acasta Walker, is a multivoltine wasp whose infestations can decimate bee stocks. Details of M. acasta life history using M. rotundata as a host are needed to develop control strategies. Our objectives were (i) to describe the M. acasta life cycle using M. rotundata prepupae as hosts and (ii) to determine the M. acasta developmental base temperature and propose a degree-day model. First, 150–300 M. acasta adults were introduced to 60 M. rotundata prepupae (10–20 wasp females/4 bee prepupae) upon which they oviposited. Progeny development (at 30 °C) was monitored through adulthood. We identified 12 distinct phases of the M. acasta life cycle that were observed among samples over an average of 19.5 days. Second, vials each containing a M. rotundata prepupa with M. acasta eggs were positioned across a temperature gradient bar (2 vials per temperature). In repeated trials, wasp development was tracked from egg to adult where a mean development time for 30 °C was found to be 13 days. A linear regression analysis determined the lower developmental temperature threshold to be 8.55 °C. Application of this base temperature in a degree-day model revealed an average of 305.8-degree-day accumulation from egg to adult. These results provide a framework to assist bee managers in devising M. acasta control strategies and timing their implementation.

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Limited sex differences in plastic responses suggest evolutionary conservatism of thermal reaction norms: A meta-analysis in insects

et al. 2022

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Temperature has a profound effect on the growth and development of ectothermic animals. However, the extent to which ecologically driven selection pressures can adjust thermal plastic responses in growth schedules is not well understood. Comparing temperature‐induced plastic responses between sexes provides a promising but underexploited approach to evaluating the evolvability of thermal reaction norms: males and females share largely the same genes and immature environments but typically experience different ecological selection pressures. We proceed from the idea that substantial sex differences in plastic responses could be interpreted as resulting from sex‐specific life‐history optimization, whereas similarity among the sexes should rather be seen as evidence of an essential role of physiological constraints. In this study, we performed a meta‐analysis of sex‐specific thermal responses in insect development times, using data on 161 species with comprehensive phylogenetic and ecological coverage. As a reference for judging the magnitude of sex specificity in thermal plasticity, we compared the magnitude of sex differences in plastic responses to temperature with those in response to diet. We show that sex‐specific responses of development times to temperature variation are broadly similar. We also found no strong evidence for sex specificity in thermal responses to depend on the magnitude or direction of sex differences in development time. Sex differences in temperature‐induced plastic responses were systematically less pronounced than sex differences in responses induced by variations in larval diet. Our results point to the existence of substantial constraints on the evolvability of thermal reaction norms in insects as the most likely explanation. If confirmed, the low evolvability of thermal response is an essential aspect to consider in predicting evolutionary responses to climate warming.

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Temperature-Dependent Biological and Demographic Parameters of Coleomegilla maculata (Coleoptera: Coccinellidae)

Cited by 9 publications

References 40 publications

Temperature and prey assessment on the performance of the mealybug predator Tenuisvalvae notata (Coleoptera: Coccinellidae)

Temperature and prey assessment on the performance of the mealybug predator Tenuisvalvae notata (Coleoptera: Coccinellidae)

Life cycle of Melittobia acasta (Hymenoptera: Eulophidae) using Megachile rotundata (Hymenoptera: Megachilidae) as a host

Limited sex differences in plastic responses suggest evolutionary conservatism of thermal reaction norms: A meta-analysis in insects

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