Thermal Effects on the Population Parameters and Growth of Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae)

The pea aphid Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae) is a cosmopolitan and polyphagous species. An evaluation of A. pisum’s demographic parameters and growth was carried out after rearing aphids on faba bean plants (Vicia faba) under five different temperature conditions (10 °C, 15 °C,...

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Bibliographic Details
Published in:Insects (Basel, Switzerland) Switzerland), 2020-07, Vol.11 (8), p.481
Main Authors: Ahn, Jeong Joon, Cho, Jum Rae, Kim, Jeong-Hwan, Seo, Bo Yoon
Format: Article
Language:English
Subjects:
Acyrthosiphon pisum
Age
Analytical methods
Aphididae
Broad beans
Fecundity
Hemiptera
Humidity
Insects
Life history
life table
Mathematical analysis
Methods
Parameters
Population growth
population projection
Population structure
Reproduction (biology)
Studies
temperature
Temperature effects
Viruses
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Summary:The pea aphid Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae) is a cosmopolitan and polyphagous species. An evaluation of A. pisum’s demographic parameters and growth was carried out after rearing aphids on faba bean plants (Vicia faba) under five different temperature conditions (10 °C, 15 °C, 20 °C, 25 °C and 30 °C). We analyzed the raw life history data, including developmental time, survival, longevity and reproduction, using an age-stage, two-sex life table to consider variable developmental rates among individuals. The population fluctuation of A. pisum determined the stage-specific population structure and potential population growth under different temperature conditions. A. pisum individuals developed successfully from nymphs to adults at all temperatures in this study. The developmental rate of A. pisum increased as the temperature increased. Our results indicated that A. pisum showed a higher pre-adult mortality, lower total fecundity and a negative intrinsic rate of increase at 30 °C. The highest intrinsic rate of increase (0.30) and finite rate of increase (1.35) were observed at 25 °C. Comparisons of population parameters and their analytical methods between different A. pisum populations from other geographic areas are also discussed.
ISSN:2075-4450
2075-4450
DOI:10.3390/insects11080481