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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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--0000000000008136a105e53029a4 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7BIT 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 > --0000000000008136a105e53029a4 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <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'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 "a village" (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 <<a href=3D"mailto:<billd...>"><billd...></a>> 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'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'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> --0000000000008136a105e53029a4-- |
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