Abstract
The age-specific survival and fecundity rates of groundnut seed beetle (Caryedon serratus Olivier) at different temperatures (25, 30, 35 and 40°C) in the laboratory on groundnut (Arachis hypogaea L.) were studied to estimate the dependence of the intrinsic rate of increase on temperature. Results indicated that the fecundity, survival rates and developmental time of C. serratus were different at different temperatures. The fecundity of C. serratus reared at 25°C was highest and decreased with the increase in temperature. Net reproductive rate and mean length of generation also decreased with the increase in temperature. Net reproductive rate varied from 159.07 viable eggs/female at 25°C to 101.94 eggs/female at 40°C and mean generation time varied from 166.52 days at 25°C to 59.31 days at 40°C. The intrinsic rate of increase (rm), the innate capacity for increase (rc), and finite rate of increase (λ) increased with increase in temperature from 25 to 40°C. Intrinsic rate of increase (rm), varied from 0.0316 females/female/day at 25°C to 0.0784 females/female/day at 40°C. The intrinsic rate of natural increase (rm) at 40°C was 2.48 times higher than that at 25°C. The shorter generation time and higher intrinsic rate of increase shortened the population doubling time of C. serratus to 8.96 days at 40°C compared to 21.94 days at 25°C.
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Claims 8
Claim · model-written summary
Fecundity of Caryedon serratus was highest at 25°C and decreased as temperature increased
- Taxon
- groundnut (Arachis hypogaea L.)
Arachis hypogaeae0 - Treatment
- increase in temperaturee1
- Interactor
- Caryedon serratus
Caryedon serratuse0pest - Outcome
- fecunditye1
- Direction
- decreasede1
- Comparator
- 25°Ce1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The age-specific survival and fecundity rates of groundnut seed beetle (Caryedon serratus Olivier) at different temperatures (25, 30, 35 and 40°C) in the laboratory on groundnut (Arachis hypogaea L.)”
e1“The fecundity of C. serratus reared at 25°C was highest and decreased with the increase in temperature”
Claim · model-written summary
Net reproductive rate decreased from 159.07 viable eggs/female at 25°C to 101.94 eggs/female at 40°C
- Taxon
- groundnut (Arachis hypogaea L.)Arachis hypogaeae0
- Treatment
- 40°Ce2
- Interactor
- Caryedon serratusCaryedon serratuse0pest
- Outcome
- Net reproductive ratee2
- Direction
- decreasede3
- Value
- 159.07 viable eggs/female at 25°C to 101.94 eggs/female at 40°Ce2
- Comparator
- 25°Ce2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The age-specific survival and fecundity rates of groundnut seed beetle (Caryedon serratus Olivier) at different temperatures (25, 30, 35 and 40°C) in the laboratory on groundnut (Arachis hypogaea L.)”
e2“Net reproductive rate varied from 159.07 viable eggs/female at 25°C to 101.94 eggs/female at 40°C”
e3“Net reproductive rate and mean length of generation also decreased with the increase in temperature”
Claim · model-written summary
Mean generation time decreased from 166.52 days at 25°C to 59.31 days at 40°C
- Taxon
- groundnut (Arachis hypogaea L.)Arachis hypogaeae0
- Treatment
- 40°Ce4
- Interactor
- Caryedon serratusCaryedon serratuse0pest
- Outcome
- mean generation timee4
- Direction
- decreasede3
- Value
- 166.52 days at 25°C to 59.31 days at 40°Ce4
- Comparator
- 25°Ce4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The age-specific survival and fecundity rates of groundnut seed beetle (Caryedon serratus Olivier) at different temperatures (25, 30, 35 and 40°C) in the laboratory on groundnut (Arachis hypogaea L.)”
e3“Net reproductive rate and mean length of generation also decreased with the increase in temperature”
e4“mean generation time varied from 166.52 days at 25°C to 59.31 days at 40°C”
Claim · model-written summary
Intrinsic rate of increase, innate capacity for increase and finite rate of increase increased with temperature from 25 to 40°C
- Taxon
- groundnut (Arachis hypogaea L.)Arachis hypogaeae0
- Treatment
- increase in temperature from 25 to 40°Ce5
- Interactor
- Caryedon serratusCaryedon serratuse0pest
- Outcome
- intrinsic rate of increase (rm), the innate capacity for increase (rc), and finite rate of increase (λ)e5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The age-specific survival and fecundity rates of groundnut seed beetle (Caryedon serratus Olivier) at different temperatures (25, 30, 35 and 40°C) in the laboratory on groundnut (Arachis hypogaea L.)”
e5“The intrinsic rate of increase (rm), the innate capacity for increase (rc), and finite rate of increase (λ) increased with increase in temperature from 25 to 40°C”
Claim · model-written summary
Intrinsic rate of increase varied from 0.0316 to 0.0784 females/female/day between 25°C and 40°C
- Taxon
- groundnut (Arachis hypogaea L.)Arachis hypogaeae0
- Interactor
- Caryedon serratusCaryedon serratuse0pest
- Outcome
- Intrinsic rate of increase (rm)e6
- Value
- 0.0316 females/female/day at 25°C to 0.0784 females/female/day at 40°Ce6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The age-specific survival and fecundity rates of groundnut seed beetle (Caryedon serratus Olivier) at different temperatures (25, 30, 35 and 40°C) in the laboratory on groundnut (Arachis hypogaea L.)”
e6“Intrinsic rate of increase (rm), varied from 0.0316 females/female/day at 25°C to 0.0784 females/female/day at 40°C”
Claim · model-written summary
Intrinsic rate of natural increase was 2.48 times higher at 40°C than at 25°C
- Taxon
- groundnut (Arachis hypogaea L.)Arachis hypogaeae0
- Treatment
- 40°Ce7
- Interactor
- Caryedon serratusCaryedon serratuse0pest
- Outcome
- intrinsic rate of natural increase (rm)e7
- Direction
- highere7
- Value
- 2.48 timese7
- Comparator
- 25°Ce7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The age-specific survival and fecundity rates of groundnut seed beetle (Caryedon serratus Olivier) at different temperatures (25, 30, 35 and 40°C) in the laboratory on groundnut (Arachis hypogaea L.)”
e7“The intrinsic rate of natural increase (rm) at 40°C was 2.48 times higher than that at 25°C”
Claim · model-written summary
Population doubling time was shortened to 8.96 days at 40°C compared with 21.94 days at 25°C
- Taxon
- groundnut (Arachis hypogaea L.)Arachis hypogaeae0
- Treatment
- 40°Ce1
- Interactor
- Caryedon serratusCaryedon serratuse0pest
- Outcome
- population doubling timee1
- Direction
- shortenede1
- Value
- 8.96 dayse1
- Qualifier
- The shorter generation time and higher intrinsic rate of increasee1
- Comparator
- 25°Ce1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The age-specific survival and fecundity rates of groundnut seed beetle (Caryedon serratus Olivier) at different temperatures (25, 30, 35 and 40°C) in the laboratory on groundnut (Arachis hypogaea L.)”
e1“The shorter generation time and higher intrinsic rate of increase shortened the population doubling time of C. serratus to 8.96 days at 40°C compared to 21.94 days at 25°C”
Claim · model-written summary
Fecundity, survival rates and developmental time of Caryedon serratus differed among temperatures
- Taxon
- groundnut (Arachis hypogaea L.)Arachis hypogaeae0
- Interactor
- Caryedon serratusCaryedon serratuse0pest
- Outcome
- survival rates and developmental timee1
- Qualifier
- were different at different temperaturese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The age-specific survival and fecundity rates of groundnut seed beetle (Caryedon serratus Olivier) at different temperatures (25, 30, 35 and 40°C) in the laboratory on groundnut (Arachis hypogaea L.)”
e1“the fecundity, survival rates and developmental time of C. serratus were different at different temperatures”