Temperature-dependent development of Oenopia conglobata (Col.: Coccinellidae) fed on Aphis gossypii (Hem.: Aphididae)

2018 ◽  
Vol 38 (04) ◽  
pp. 410-417 ◽  
Author(s):  
Mohammad Amin Jalali ◽  
Samane Sakaki ◽  
Mahdi Ziaaddini ◽  
Kent M. Daane
Keyword(s):  
Development Time ◽  
Developmental Stages ◽  
Aphis Gossypii ◽  
Mass Rearing ◽  
Classical Biological Control ◽  
Biological Cycle ◽  
Temperature Dependent ◽  
Dependent Development ◽  
Thermal Range ◽  
Temperature Thresholds

AbstractLadybeetles are known beneficial insects, with a long history in augmentative and classical biological control. The ladybeetle Oenopia conglobata (L.) is a natural enemy of many herbivores, particularly aphids. The temperature-dependent development of O. conglobata was studied at six constant temperatures (22.5, 25, 27.5, 30, 32.5 and 35 °C) to understand its development rate and environmental constraints better. Linear and nonlinear (Lactin) models were fitted to the data. In the thermal range from 22.5 to 32.5 °C, the rate of development increased for all stages; 35 °C was lethal for all stages and no eggs hatched. The Tb and K values for the biological cycle (egg–adult) were 8.84 °C and 263.15 DD, respectively. Depending on the model, tmin values for the total development time of the coccinellid ranged from 8.45 to 8.82 °C. The nonlinear model of Lactin estimated the optimum and upper temperature thresholds for the total development time of the ladybeetle to be 33.2 and 35.0 °C, respectively. High R2 values and low residual sum of squares values revealed a good fit to the experimental data for total development and different developmental stages of O. conglobata. The results may contribute to the improvement of practical methods for mass rearing of O. conglobata.

Temperature dependent development and temperature thresholds of Rhyncaphytoptus ficifoliae Keifer (Diptilomiopidae)

2020 ◽  
Vol 23 (1) ◽  
pp. 186-195
Author(s):  
Fereshteh Bahiraei ◽  
Shahriar Jafari ◽  
Parisa Lotfollahi ◽  
Jahanshir Shakarami
Keyword(s):  
Temperature Dependent ◽  
Dependent Development ◽  
Temperature Thresholds

scholarly journals A critical review of the use and performance of different function types for modeling temperature-dependent development of arthropod larvae

2016 ◽  
Author(s):  
Brady K. Quinn
Keyword(s):  
Development Time ◽  
Single Type ◽  
Published Data ◽  
List Type ◽  
Temperature Dependent ◽  
Function Type ◽  
Dependent Development ◽  
Development Times ◽  
Complex Functions ◽  
Incorrect Model

ABSTRACTTemperature-dependent development influences production rates of arthropods, including crustaceans important to fisheries and agricultural pests. Numerous candidate equation types (development functions) exist to describe the effect of temperature on development time, yet most studies use only a single type of equation and there is no consensus as to which, if any model predicts development rates better than the others, nor what the consequences of selecting a potentially incorrect model equation are on predicted development times. In this study, a literature search was performed of studies fitting development functions to development of arthropod larvae (99 species). The published data of most (79) of these species were then fit with 33 commonly-used development functions. Overall performance of each function type and consequences of using a function other than the best one to model data were assessed. Performance was also related to taxonomy and the range of temperatures examined. The majority (91.1 %) of studies were found to not use the best function out of those tested. Using the incorrect model lead to significantly less accurate (e.g., mean difference ± SE 85.9 ± 27.4 %, range: −1.7 to 1725.5 %) predictions of development times than the best function. Overall, more complex functions performed poorly relative to simpler ones. However, performance of some complex functions improved when wide temperature ranges were tested, which tended to be confined to studies of insects or arachnids compared with those of crustaceans. Results indicate the biological significance of choosing the best-fitting model to describe temperature-dependent development time data.HighlightsTemperature-dependent development functions of arthropod larvae were reviewed79 published datasets were re-tested and fit with 33 different function types91.1 % of published studies did not fit their data with the best function of those testedPerformance differed among functions and was related to taxon and temperature range testedFunction type impacted predicted development times, so using the best function matters

Population Dynamics, Numerical Production, and Potential Predation Impact on a Meiobenthic Copepod

1992 ◽  
Vol 49 (3) ◽  
pp. 609-616 ◽  
Author(s):  
James T. Morris ◽  
Bruce C. Coull
Keyword(s):  
South Carolina ◽  
Population Density ◽  
Biomass Production ◽  
Developmental Stages ◽  
Population Data ◽  
North Inlet ◽  
Temperature Dependent ◽  
Dependent Development ◽  
Microarthridion Littorale

From the fecundity and temperature-dependent development times of the life stages of Microarthridion littorale and long-term measurements of the densities of copepodites and female and male adults in subtidal sediments at North Inlet, South Carolina, we calculated maximum and minimum productivity limits of this meiobenthic copepod. The potential production of numbers of nauplii (10 002 × 103∙m−2∙yr−1) exceeds the population density and production of copepodites and adults by about 2 orders of magnitude; observed populations of copepodites and adults can be supported even with a 98% mortality of nauplii. This suggests that predation or other causes of nauplii mortality limits the population density of M. littorale at North Inlet. The potential dry biomass production of nauplii is about 2.0 g∙m−2∙yr−1and greatly exceeds the combined biomass production of copepodites and adults. Because the minimum numerical productivity (that required to explain the temporal changes in population size) of adults (38 × 103∙m−2∙yr−1) is 26% of the maximum potential adult productivity (derived from the maturation of copepodites), it is likely that adult densities are regulated by recruitment. A time series of population data indicates large interannual variations in production of the different developmental stages, with potential naupliar recruitment showing the greatest variability.

scholarly journals Temperature-Dependent Development and Temperature Thresholds of Codling Moth (Lepidoptera: Tortricidae) in Iran

2009 ◽  
Vol 38 (3) ◽  
pp. 885-895 ◽  
Author(s):  
Hossein Ranjbar Aghdam ◽  
Yaghoub Fathipour ◽  
Gholamreza Radjabi ◽  
Mohammadreza Rezapanah
Keyword(s):  
Codling Moth ◽  
Temperature Dependent ◽  
Dependent Development ◽  
Temperature Thresholds

scholarly journals Integrative taxonomy and phylogeography of Telenomus remus (Scelionidae), with the first record of natural parasitism of Spodoptera spp. in Brazil

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ana P. G. S. Wengrat ◽  
Aloisio Coelho Junior ◽  
Jose R. P. Parra ◽  
Tamara A. Takahashi ◽  
Luis A. Foerster ◽  
...  
Keyword(s):  
Biological Control ◽  
Mitochondrial Gene ◽  
First Record ◽  
Mass Rearing ◽  
Classical Biological Control ◽  
Egg Parasitoid ◽  
Integrative Approach ◽  
Agricultural Pests ◽  
Telenomus Remus ◽  
Natural Parasitism

AbstractThe egg parasitoid Telenomus remus (Hymenoptera: Scelionidae) has been investigated for classical and applied biological control of noctuid pests, especially Spodoptera (Lepidoptera: Noctuidae) species. Although T. remus was introduced into Brazil over three decades ago for classical biological control of S. frugiperda, this wasp has not been recorded as established in corn or soybean crops. We used an integrative approach to identify T. remus, combining a taxonomic key based on the male genitalia with DNA barcoding, using a cytochrome c oxidase subunit I mitochondrial gene fragment. This is the first report of natural parasitism of T. remus on S. frugiperda and S. cosmioides eggs at two locations in Brazil. We also confirmed that the T. remus lineage in Brazil derives from a strain in Venezuela (originally from Papua New Guinea and introduced into the Americas, Africa, and Asia). The occurrence of T. remus parasitizing S. frugiperda and S. cosmioides eggs in field conditions, not associated with inundative releases, suggests that the species has managed to establish itself in the field in Brazil. This opens possibilities for future biological control programs, since T. remus shows good potential for mass rearing and egg parasitism of important agricultural pests such as Spodoptera species.

scholarly journals Forensic Entomology in China and Its Challenges

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 230
Author(s):  
Yu Wang ◽  
Yinghui Wang ◽  
Man Wang ◽  
Wang Xu ◽  
Yanan Zhang ◽  
...  
Keyword(s):  
Species Identification ◽  
Forensic Entomology ◽  
Research Progress ◽  
Temperature Dependent ◽  
Related Research ◽  
Dependent Development ◽  
Faunal Succession ◽  
Recent Research Progress

While the earliest record of forensic entomology originated in China, related research did not start in China until the 1990s. In this paper, we review the recent research progress on the species identification, temperature-dependent development, faunal succession, and entomological toxicology of sarcosaprophagous insects as well as common applications of forensic entomology in China. Furthermore, the difficulties and challenges forensic entomologists face in China are analyzed and possible countermeasures are presented.

scholarly journals Effect of Temperature on the Development and Survival of Feltiella Acarisuga (Vallot) (Diptera: Cecidomyiidae) Preying on Tetranychus Urticae (Koch) (Acari: Tetranychidae)

Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 508
Author(s):  
Yong-Seok Choi ◽  
Sung-Hoon Baek ◽  
Min-Jung Kim
Keyword(s):  
Developmental Stages ◽  
Gall Midge ◽  
Mass Rearing ◽  
Immature Stage ◽  
Development Rate ◽  
Effect Of Temperature ◽  
Thermal Constant ◽  
Fundamental Information ◽  
Threshold Temperatures ◽  
Response To Temperature

The predatory gall midge, Feltiella acarisuga (Vallot) (Diptera: Cecidomyiidae), is an acarivorous species that mainly feeds on spider mites (Acarina: Tetranychidae). Because of its cosmopolitan distribution and predation efficacy, it is considered an important natural enemy available as a biological agent for augmentative biocontrol. However, despite its practical use, the thermal development and survival response to temperature have not yet been fully studied. In this study, we investigated the stage-specific development and survival of F. acarisuga at seven temperatures (11.5, 15.7, 19.8, 23.4, 27.7, 31.9, and 35.4 °C) to examine the effect of temperature on its lifecycle. All developmental stages could develop at 11.5–31.9 °C, but the performance was different according to the temperature. From the linear development rate models, the lower development threshold and thermal constant of the total immature stage were estimated at 8.2 °C and 200 DD, respectively. The potential optimal and upper threshold temperatures for the total immature stage were estimated as 29.3 and 35.1 °C using a non-linear development model. The operative thermal ranges for development and survival at 80% of the maximum rate were 24.5–32.3 and 14.7–28.7 °C, respectively. Thus, it was suggested that 24.5–28.7 °C was suitable for the total immature stage. In contrast, conditions around 8 °C and 35 °C should be avoided due to the lower development rate and high mortality. Our findings provide fundamental information for an effective mass-rearing and releasing program of F. acarisuga in an augmentative biocontrol program and help to predict phenology.

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