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Climate Change and Phenology: Empoasca fabae (Hemiptera: Cicadellidae) Migration and Severity of Impact.

Baker MB, Venugopal PD, Lamp WO - PLoS ONE (2015)

Bottom Line: Climate change can benefit individual species, but when pest species are enhanced by warmer temperatures agricultural productivity may be placed at greater risk.We analyzed the effects of temperature anomaly on arrival date and infestation severity of potato leafhopper, Empoasca fabae Harris, a classic new world long distance migrant, and a significant pest in several agricultural crops.These relationships suggest that continued warming could advance the time of E. fabae colonization and increase their impact on affected crops.

View Article: PubMed Central - PubMed

Affiliation: Biology Department, Queens College of The City University of New York, 65-30 Kissena Boulevard, Flushing, New York, 11367, United States of America.

ABSTRACT
Climate change can benefit individual species, but when pest species are enhanced by warmer temperatures agricultural productivity may be placed at greater risk. We analyzed the effects of temperature anomaly on arrival date and infestation severity of potato leafhopper, Empoasca fabae Harris, a classic new world long distance migrant, and a significant pest in several agricultural crops. We compiled E. fabae arrival dates and infestation severity data at different states in USA from existing literature reviews and agricultural extension records from 1951-2012, and examined the influence of temperature anomalies at each target state or overwintering range on the date of arrival and severity of infestation. Average E. fabae arrival date at different states reveal a clear trend along the south-north axis, with earliest arrival closest to the overwintering range. E. fabae arrival has advanced by 10 days over the last 62 years. E. fabae arrived earlier in warmer years in relation to each target state level temperature anomaly (3.0 days / °C increase in temperature anomaly). Increased temperature had a significant and positive effect on the severity of infestation, and arrival date had a marginal negative effect on severity. These relationships suggest that continued warming could advance the time of E. fabae colonization and increase their impact on affected crops.

No MeSH data available.


Related in: MedlinePlus

Trends in arrival date (Julian day) of Empoasca fabae in United States during 1951–2012 estimated through LMM.The straight line represents the slope and the extent of shaded region represents lower and upper 95% confidence intervals as estimated by the LMM, and the points represent raw data.
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pone.0124915.g002: Trends in arrival date (Julian day) of Empoasca fabae in United States during 1951–2012 estimated through LMM.The straight line represents the slope and the extent of shaded region represents lower and upper 95% confidence intervals as estimated by the LMM, and the points represent raw data.

Mentions: The average annual arrival date of E. fabae at different states in contiguous US, based on the compiled data, is provided in Table 1. First reported average arrival date increased along a south to north axis, corresponding to the distance from the overwintering sources in the southern part of USA (Fig 1). LMMs that examined trend of arrival demonstrated, after accounting for the state effect, a weak but significant negative association between year and arrival date (b = - 0.159, SE = 0.04, df = 316, Wald t = -3.86, P < 0.001). The model estimated that E. fabae adults arrived 0.16 days earlier with each yearly increase, or 9.7 days over 62 years (Fig 2).


Climate Change and Phenology: Empoasca fabae (Hemiptera: Cicadellidae) Migration and Severity of Impact.

Baker MB, Venugopal PD, Lamp WO - PLoS ONE (2015)

Trends in arrival date (Julian day) of Empoasca fabae in United States during 1951–2012 estimated through LMM.The straight line represents the slope and the extent of shaded region represents lower and upper 95% confidence intervals as estimated by the LMM, and the points represent raw data.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4430490&req=5

pone.0124915.g002: Trends in arrival date (Julian day) of Empoasca fabae in United States during 1951–2012 estimated through LMM.The straight line represents the slope and the extent of shaded region represents lower and upper 95% confidence intervals as estimated by the LMM, and the points represent raw data.
Mentions: The average annual arrival date of E. fabae at different states in contiguous US, based on the compiled data, is provided in Table 1. First reported average arrival date increased along a south to north axis, corresponding to the distance from the overwintering sources in the southern part of USA (Fig 1). LMMs that examined trend of arrival demonstrated, after accounting for the state effect, a weak but significant negative association between year and arrival date (b = - 0.159, SE = 0.04, df = 316, Wald t = -3.86, P < 0.001). The model estimated that E. fabae adults arrived 0.16 days earlier with each yearly increase, or 9.7 days over 62 years (Fig 2).

Bottom Line: Climate change can benefit individual species, but when pest species are enhanced by warmer temperatures agricultural productivity may be placed at greater risk.We analyzed the effects of temperature anomaly on arrival date and infestation severity of potato leafhopper, Empoasca fabae Harris, a classic new world long distance migrant, and a significant pest in several agricultural crops.These relationships suggest that continued warming could advance the time of E. fabae colonization and increase their impact on affected crops.

View Article: PubMed Central - PubMed

Affiliation: Biology Department, Queens College of The City University of New York, 65-30 Kissena Boulevard, Flushing, New York, 11367, United States of America.

ABSTRACT
Climate change can benefit individual species, but when pest species are enhanced by warmer temperatures agricultural productivity may be placed at greater risk. We analyzed the effects of temperature anomaly on arrival date and infestation severity of potato leafhopper, Empoasca fabae Harris, a classic new world long distance migrant, and a significant pest in several agricultural crops. We compiled E. fabae arrival dates and infestation severity data at different states in USA from existing literature reviews and agricultural extension records from 1951-2012, and examined the influence of temperature anomalies at each target state or overwintering range on the date of arrival and severity of infestation. Average E. fabae arrival date at different states reveal a clear trend along the south-north axis, with earliest arrival closest to the overwintering range. E. fabae arrival has advanced by 10 days over the last 62 years. E. fabae arrived earlier in warmer years in relation to each target state level temperature anomaly (3.0 days / °C increase in temperature anomaly). Increased temperature had a significant and positive effect on the severity of infestation, and arrival date had a marginal negative effect on severity. These relationships suggest that continued warming could advance the time of E. fabae colonization and increase their impact on affected crops.

No MeSH data available.


Related in: MedlinePlus