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Andy
Thanks for the reference

Big numbers
number of Lepidoptera killed along roadways for the entire state of Illinois during one week: 20,000,000
The number of monarch butterflies killed may have exceeded 500,000 individuals
d

http://www.google.ch/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CB4QFjAA&url=http%3A%2F%2Fimages.peabody.yale.edu%2Flepsoc%2Fjls%2F2000s%2F2001%2F2001-55(2)63-McKenna.pdf&ei=bfWiU5W1HYni4QTuoYHQDA&usg=AFQjCNELPBVUPyZS6yHJlnvm-HMS2WQAHg&sig2=5X4b32tvL8w-qEf7AIcL0Q&bvm=bv.69411363,d.bGE&cad=rja 

ABSTRACT. We conducted this study to investigate the magnitude of roadway mortality of Lepidoptera in central Illinois. To quantify the number and kinds of Lepidoptera killed along roadways, dead adult Lepidoptera were collected, identified, and counted from along 13 roadside transects in the vicinity of Champaign/Urbana, Illinois, with collections occurring weekly on each transect for six weeks. During the six weeks of this study, 1824 presumably road-killed Lepidoptera were collected. At traffic rates of 1000, 13,500, and 19,700 vehicles per day, more Lepidoptera were collected per 100 m than at other traffic rates. A peak in monarch butterfly mortality may coincide with the timing of their annual migration through the area. Based on these data, the number of Lepidoptera killed along roadways for the entire state of Illinois during one week was estimated at more than 20,000,000 individuals. The number of monarch butterflies killed may have exceeded 500,000 individuals. Our results suggest that increases in traffic rate and speed limit may to a certain extent increase mortality.
Additional key words:	Butterflies,	Danaus	plexippus, traffic.

-----Original Message-----
From: Entomological Collections Network Listserve [mailto:[log in to unmask]] On Behalf Of Andrew Brower
Sent: Thursday, June 19, 2014 4:30 PM
To: [log in to unmask]
Subject: Re: NPR news on collecting

In regard to Mike's grill assertion (which I think is correct), see

McKenna, D.M., McKenna, K.M., Malcolm, S.B.,Berenbaum, M.R. 2001.
Mortality of Lepidoptera along roadways in central Illinois. J. Lepid.
Soc. 55, 63-68.

Andy


Professor Andrew V. Z. Brower
Evolution and Ecology Group
Dept. of Biology, Box 60
Middle Tennessee State University
Murfreesboro, TN 37132

(615) 898-2064







On 6/18/14 1:39 PM, "Michael A. Ivie" <[log in to unmask]> wrote:

>For insects, the grill on a cross-country truck accumulates more dead 
>bugs over its lifetime than any of us kill in a career of collecting.
>What is the ethics of the interstate highway system in this regard?
>However, I would agree to see all bird and mammal collecting stopped as 
>long as the funding for those trips was diverted to insect collecting 
>;-)
>
>Mike Ivie
>
>
>--
>__________________________________________________
>
>Michael A. Ivie, Ph.D., F.R.E.S.
>
>Montana Entomology Collection
>Marsh Labs, Room 50
>1911 West Lincoln Street
>NW corner of Lincoln and S.19th
>Montana State University
>Bozeman, MT 59717
>USA
>
>(406) 994-4610 (voice)
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