Subject: Re: [ECOLOG-L] Mosquitoes as keystone species?
Hello Amanda:
There is a considerable literature, particularly from the 20th
Century on the role played by various mosquito species in pollinating
woodland flowers, particularly the small orchid species (Platanthera)
but other northern
William Brogan wrote: However, other herbicides such as Atrazine are not
very lethal to amphibians in concentrations that are likely to be observed
in surface waters.
Not very lethal is not the name of the game. If a chemical causes them
to become intersex and be otherwise messed up
09, 2009 10:00 PM
To: ECOLOG-L@LISTSERV.UMD.EDU
Subject: Re: [ECOLOG-L] Mosquitoes as keystone species?
I agree with you the rest of your post, except to say that not all
mosquitoes are human-feeders, and not all are WNV-vectors (only those
that bite both birds and mammals are).
Fewer
] On Behalf Of James Crants
Sent: Thursday, July 09, 2009 10:00 PM
To: ECOLOG-L@LISTSERV.UMD.EDU
Subject: Re: [ECOLOG-L] Mosquitoes as keystone species?
I agree with you the rest of your post, except to say that not all
mosquitoes are human-feeders, and not all are WNV-vectors (only those
that bite
Conor,
I believe the product used now is Malathion:
Malathion is a man-made organophosphate insecticide that is commonly used
to control mosquitoes and a variety of insects that attack fruits,
vegetables, landscaping plants, and shrubs. It can also be found in other
pesticide products used
Conor_Flynn wrote:
we've noticed something interesting: there are no
mosquitoes in or near Alamosa. This is because the
city sprays for them regularly. We have also noticed
fewer grasshoppers, bees, and frogs than we might
otherwise expect.
Michael Cooperman wrote:
I don't know what
Paul,
Forgive me if I am wrong here, but aren't these kinds of observations the
very ones that lead to the formation of hypotheses-which will then be later
falsified or confirmed? Although one might consider such wild
speculation, would you not agree that such questions and observations are
is that they were killed.
Bill Silvert, trying to think critically.
- Original Message -
From: Paul Cherubini mona...@saber.net
To: ECOLOG-L@LISTSERV.UMD.EDU
Sent: Thursday, July 09, 2009 1:10 PM
Subject: Re: [ECOLOG-L] Mosquitoes as keystone species?
Conor_Flynn wrote:
we've
Paul, I agree completely. Then why on earth is the city spraying without
any evidence that it is having any effect? What a waste of taxpayer's
money.
Charles Davis
In the quoted text below, Michael Cooperman says only that whatever chemical
Conor's county uses to control mosquitoes probably affects other insects as
strongly as it affects mosquitoes. The implication is that he agrees it's
plausible that the chemical used to control mosquitoes near Alamosa
Bill Silvert wrote:
Flynn indicated that he had a team of colleagues working
over several years who made this observation.
Flynn made no mention of the number of years they had
been observing.
Nor is it unreasonable to postulate that maybe the
reason that there are fewer mosquitoes is
Michael Cooperman wrote:
I respectfully disagree with you. It is not wild speculation to posit
widely applied broad-cast insecticides have impacts to non-target
organisms,
You said the mosquito chemical: would affect other insects
just as strongly which is speculation.
Paul Cherubini
El
reasonable conclusions with respect to the subscribers of this list?
WT
- Original Message -
From: Paul Cherubini mona...@saber.net
To: ECOLOG-L@LISTSERV.UMD.EDU
Sent: Thursday, July 09, 2009 9:10 AM
Subject: Re: [ECOLOG-L] Mosquitoes as keystone species?
Conor_Flynn wrote:
we've noticed
as keystone species?
To: ECOLOG-L@LISTSERV.UMD.EDU
Michael Cooperman wrote:
I respectfully disagree with you. It is not wild speculation to posit
widely applied broad-cast insecticides have impacts to non-target
organisms,
You said the mosquito chemical: would affect other insects
just
On Thu, Jul 9, 2009 at 7:57 AM, Michael
Coopermanmichael.cooper...@noaa.gov wrote:
Hello Conor,
Thank you for sharing these observations. Unfortunately, these are not
simple questions to answer, as it would take a prolonged and rigorous
discourse on many of the disciplines of ecology to
Conor,
I am a graduate student in Rick Relyea's lab at the University of
Pittsburgh. Our lab has been looking at the direct and indirect impacts of
many types of pesticides on amphibians for the better part of this decade.
We have found that the direct impacts of pesticide exposure on
I agree with you the rest of your post, except to say that not all
mosquitoes are human-feeders, and not all are WNV-vectors (only those
that bite both birds and mammals are).
Fewer bees probably does equate with fewer flowering plants.
In the same spirit, I should add that many
I'll admit that my knowledge of mosquitoes is not great, but I wouldn't
necessarily go so far as to label them a keystone species. Since there are
several different genera of mosquitoes in North America (let alone
species!), is the term keystone species even appropriate? Can the concept
be
Our field crew is working in the extensive wetlands surrounding Alamosa,
CO and we've noticed something interesting: there are no mosquitoes in or
near Alamosa.
This is because the city sprays for them regularly. We're not
complaining... but we have also noticed fewer grasshoppers, bees, and
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