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J Chem Ecol

Title:		"Capture rates of the European pine sawfly, Neodiprion sertifer, in pheromone traps, with special regard to effects of wind speed"
Author(s):		Ostrand F; Anderbrant O; Jonsson P; Lyytikainen-Saarenmaa P;
Address:		"Dept. of Ecology, Lund University, Ecology Building, SE-223 62 Lund, Sweden"
Journal Title:		J Chem Ecol
Year:		2001
Volume:		27
Issue:		8
Page Number:		1561 - 1574
DOI:		10.1023/a:1010450006518
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"Males of the European pine sawfly, Neodiprion sertifer Geoffr., were marked and released downwind from pheromone traps, baited with 100 micrograms of the sex pheromone (2S,3S,7S)-3,7-dimethyl-2-pentadecyl acetate. Males were released 5 m downwind from one trap, or downwind from five traps, 50 m or 200 m away. The average capture rates after 24 hr were 21.5%, 17.7% and 3.8%, respectively. The capture rate was highest at moderate wind speeds (1-2 m/sec) in the 50 m experiments, whereas it decreased above wind speeds of 1.5 m/sec in the 200 m experiments. With no precipitation and > 13.5 degrees C during overcast, wind speed is presumably the most important climatic factor for N. sertifer males flying upwind to a pheromone source. Travel time, the elapsed time form take-off to landing on the trap, varied considerably, and the shortest recorded travel times were 1, 6 and 45 min for the 5, 50, and 200 m experiments, respectively. The trap efficiency i.e., number of captured males per number of males that landed on the trap, was estimated at 52% in the 5 m experiments. The sampling range after 24 hr was calculated at approximately 400 m by regression analysis. The combination of the males' flight ability during upwind progress and their longevity (12 days), suggests a potentially large seasonal sampling range of the traps used in this study"
Keywords:		"Animals *Chemotaxis *Flight, Animal *Hymenoptera Longevity Male Population Dynamics Seasons Sex Attractants/*pharmacology Wind;"
Notes:		"MedlineOstrand, F Anderbrant, O Jonsson, P Lyytikainen-Saarenmaa, P eng Research Support, Non-U.S. Gov't 2001/08/28 J Chem Ecol. 2001 Aug; 27(8):1561-74. doi: 10.1023/a:1010450006518"