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List: Carolina-Leps
Date: Mon, 1 Aug 2022 12:04:51 -0400
From: Harry LeGrand (via carolinaleps Mailing List) <carolinaleps...>
Subject: Re: Tawny Emperor to Hackberry ratios

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I have no idea if the sharp decline of Tawny Emperors, at least in
comparison to Hackberry Emperors. in 2021 and 2022 -- is localized to much
of North Carolina or is a broader trend. As both species use hackberries
(Celtis) as the hostplants, and as both inhabit the same places in the
Carolinas, there shouldn't be such a dichotomy. Yes, Hackberry Emperors
emerge one to two weeks earlier in May than do Tawny, but would hard
freezes in late winter and spring affect one species more than another (in
non-adult stages)?

Thankfully, butterflies are very fecund -- and one gravid female of a
species can often lay enough eggs to populate "a village" (either in one
generation or two generations within one year). Witness the one-day count
of 800 !! Dainty Sulphurs at a Winston-Salem site back in 2012. So, the
handful of Tawny Emperors at Mason Farm a few days ago is a hopeful sign.

Harry LeGrand

On Sun, Jul 31, 2022 at 2:29 PM bill d <billd...> wrote:

> Hi all,
>
> After reading the posts i looked at my own data and find the same trend. I
> am in northern Oklahoma wondering whether you have information that this
> may be a national trend, rather than just a regional one? I didn't get
> seriously into butterflying until 2016. Before that time i would
> occasionally snap a photo of one while out birding. As expected i have more
> Hackberrys after i got into leps. On the other hand my last Tawny Emperor
> was 9/11/16. At any rate I'm glad the species may be making a comeback, if
> only in a small part of the Carolinas.
>
> fascinating stuff!
>
> bill d
> enid garfield ok
>

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<div dir=3D"ltr"><div>I have no idea if the sharp decline of Tawny Emperors=
, at least in comparison to Hackberry Emperors. in 2021 and 2022 -- is loca=
lized to much of North Carolina or is a broader trend.=C2=A0 As both specie=
s use hackberries (Celtis) as the hostplants, and as both inhabit the same =
places in the Carolinas, there shouldn&#39;t be such a dichotomy.=C2=A0 Yes=
, Hackberry Emperors emerge one to two weeks earlier in May than do Tawny, =
but would hard freezes in late winter and spring affect one species more th=
an another (in non-adult stages)?</div><div><br></div><div>Thankfully, butt=
erflies are very fecund -- and one gravid female of a species can often lay=
enough eggs to populate &quot;a village&quot; (either in one generation or=
two generations within one year).=C2=A0 Witness the one-day count of 800 !=
! Dainty Sulphurs at a Winston-Salem site back in 2012.=C2=A0 So, the handf=
ul of Tawny Emperors at Mason Farm a few days ago is a hopeful sign.</div><=
div><br></div><div>Harry LeGrand<br></div></div><br><div class=3D"gmail_quo=
te"><div dir=3D"ltr" class=3D"gmail_attr">On Sun, Jul 31, 2022 at 2:29 PM b=
ill d &lt;<a href=3D"mailto:<billd...>"><billd...></a>&gt; wrote:<b=
r></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex=
;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style=
=3D"font-family:Verdana;font-size:12px"><div>Hi all,</div>

<div>=C2=A0</div>

<div>After reading the posts i looked at my own data and find the same tren=
d. I am in northern Oklahoma wondering whether you have information that th=
is may be a national trend, rather than just a regional one? I didn&#39;t g=
et seriously into butterflying until 2016. Before that time i would occasio=
nally snap a photo of one while out birding. As expected i have more Hackbe=
rrys after i got into leps. On the other hand my last Tawny Emperor was 9/1=
1/16. At any rate I&#39;m glad the species may be making a comeback, if onl=
y in a small part of the Carolinas.</div>

<div>=C2=A0</div>

<div>fascinating stuff!</div>

<div>=C2=A0</div>

<div>bill d</div>

<div>enid garfield ok</div></div></div>
</blockquote></div>

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