Abstract
The present work was carried out to study the effect of some climatic factors on the population density of the white date palm scale insect, Parlatoria blanchardii on date palm trees during three time series (2011-2040, 2041-2070 and 2071-2100) under four Representative Concentration Pathway (RCP) scenarios (2.6, 4.5, 6.0 and 8.5) as compared with the current population of the pest (average of population density from 2009 to 2013 years) at Esna district, Luxor Governorate, Egypt. Results showed that monthly observations of total population of P. blanchardii had three to four peaks of seasonal activity per year. The mean minimum temperature was the most effective variable in population changes by 18.9, 20.9 and 19.9% for nymphs, adult females and total population of P. blanchardii during the base year data, respectively. The obtained results revealed the all expected values for number of nymphs, adult females and total population of insect during the all different time series under all different RCPs scenarios were smaller in comparison to the current population of insect. Expected total population of insect will be smaller at time series of (2071-2100) as compared with the two time series of (2041-2070) and (2011-2040) under the scenarios of (RCP 4.5, RCP 6 and RCP 8.5). Also, the time series of (2071-2100) exhibited the highest percentage of decreasing of the number of nymphs, adult females and total population with an average of (25.84, 23.76 and 24.91%) as compared to the time series of 2040-2071 (24.68, 22.44 and 23.68%) and the time series of 2011-2040 (10.43, 10.17 and 10.31%), respectively. Furthermore, the RCP 8.5 scenario exhibit the highest population density of nymphs, adult females and total population P. blanchardii and the lowest decreasing percentage of population density of P. blanchardii as compared with the different RCPs during all different time series.
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Claims 12
Claim · model-written summary
Scale insect populations had three to four seasonal peaks annually.
- Taxon
- date palm trees
Phoenix dactyliferat0 - Interactor
- P. blanchardiie0pest
- Outcome
- total population of P. blanchardiie0
- Value
- three to four peakse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“monthly observations of total population of P. blanchardii had three to four peaks of seasonal activity per year”
t0“date palm trees”
Claim · model-written summary
Mean minimum temperature explained 18.9% of nymph population changes.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- P. blanchardiie0pest
- Outcome
- population changese0
- Value
- 18.9e0
- Setting
- base year datae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean minimum temperature was the most effective variable in population changes by 18.9, 20.9 and 19.9% for nymphs, adult females and total population of P. blanchardii during the base year data, respectively.”
t0“date palm trees”
Claim · model-written summary
Mean minimum temperature explained 20.9% of adult female population changes.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- P. blanchardiie0pest
- Outcome
- population changese0
- Value
- 20.9e0
- Setting
- base year datae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean minimum temperature was the most effective variable in population changes by 18.9, 20.9 and 19.9% for nymphs, adult females and total population of P. blanchardii during the base year data, respectively.”
t0“date palm trees”
Claim · model-written summary
Mean minimum temperature explained 19.9% of total scale population changes.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- P. blanchardiie0pest
- Outcome
- population changese0
- Value
- 19.9%e0
- Setting
- base year datae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean minimum temperature was the most effective variable in population changes by 18.9, 20.9 and 19.9% for nymphs, adult females and total population of P. blanchardii during the base year data, respectively.”
t0“date palm trees”
Claim · model-written summary
Projected nymph numbers were below current population under all time series and RCP scenarios.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- Parlatoria blanchardiit1pest
- Outcome
- number of nymphse0
- Direction
- smallere0
- Comparator
- current population of insecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all expected values for number of nymphs, adult females and total population of insect during the all different time series under all different RCPs scenarios were smaller in comparison to the current population of insect”
t0“date palm trees”
t1“Parlatoria blanchardii”
Claim · model-written summary
Projected adult female numbers were below current population under all time series and RCP scenarios.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- Parlatoria blanchardiit1pest
- Outcome
- adult femalese0
- Direction
- smallere0
- Comparator
- current population of insecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all expected values for number of nymphs, adult females and total population of insect during the all different time series under all different RCPs scenarios were smaller in comparison to the current population of insect”
t0“date palm trees”
t1“Parlatoria blanchardii”
Claim · model-written summary
Projected total scale numbers were below current population under all time series and RCP scenarios.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- Parlatoria blanchardiit1pest
- Outcome
- total population of insecte0
- Direction
- smallere0
- Comparator
- current population of insecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all expected values for number of nymphs, adult females and total population of insect during the all different time series under all different RCPs scenarios were smaller in comparison to the current population of insect”
t0“date palm trees”
t1“Parlatoria blanchardii”
Claim · model-written summary
Projected total scale population in 2071–2100 was smaller than in the two earlier periods under RCP 4.5, 6 and 8.5.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- Parlatoria blanchardiit1pest
- Outcome
- total population of insecte0
- Direction
- smallere0
- Qualifier
- RCP 4.5, RCP 6 and RCP 8.5e0
- Comparator
- (2041-2070) and (2011-2040)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Expected total population of insect will be smaller at time series of (2071-2100) as compared with the two time series of (2041-2070) and (2011-2040) under the scenarios of (RCP 4.5, RCP 6 and RCP 8.5).”
t0“date palm trees”
t1“Parlatoria blanchardii”
Claim · model-written summary
Nymph population had greatest projected decrease in 2071–2100, averaging 25.84%.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- Parlatoria blanchardiit1pest
- Outcome
- number of nymphse0
- Direction
- decreasinge0
- Value
- 25.84e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the time series of (2071-2100) exhibited the highest percentage of decreasing of the number of nymphs, adult females and total population with an average of (25.84, 23.76 and 24.91%)”
t0“date palm trees”
t1“Parlatoria blanchardii”
Claim · model-written summary
Adult female population had greatest projected decrease in 2071–2100, averaging 23.76%.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- Parlatoria blanchardiit1pest
- Outcome
- adult femalese0
- Direction
- decreasinge0
- Value
- 23.76e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the time series of (2071-2100) exhibited the highest percentage of decreasing of the number of nymphs, adult females and total population with an average of (25.84, 23.76 and 24.91%)”
t0“date palm trees”
t1“Parlatoria blanchardii”
Claim · model-written summary
Total scale population had greatest projected decrease in 2071–2100, averaging 24.91%.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- Parlatoria blanchardiit1pest
- Outcome
- total populatione0
- Direction
- decreasinge0
- Value
- 24.91%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the time series of (2071-2100) exhibited the highest percentage of decreasing of the number of nymphs, adult females and total population with an average of (25.84, 23.76 and 24.91%)”
t0“date palm trees”
t1“Parlatoria blanchardii”
Claim · model-written summary
RCP 8.5 yielded the highest projected scale population and lowest percentage decrease among scenarios.
- Taxon
- date palm treesPhoenix dactyliferat0
- Interactor
- P. blanchardiie0pest
- Outcome
- population density of P. blanchardiie0
- Direction
- higheste0
- Comparator
- different RCPse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the RCP 8.5 scenario exhibit the highest population density of nymphs, adult females and total population P. blanchardii and the lowest decreasing percentage of population density of P. blanchardii as compared with the different RCPs during all different time series.”
t0“date palm trees”