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1375Var. Meadowhawks

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  • Jim Stuart
    Aug 11, 2013
    • 0 Attachment
      Based on general observations and no good survey data in central New Mexico, it does seem that the Variegated Meadowhawks have a burst of breeding activity early in the season (April-May), then become scarcer during mid-summer, then another upswing in late summer and fall (August or Sep to Oct). It seems when I see the most skimmers at ponds in June-July, I see the fewest VMs (but maybe my observations are biased). Are VMs deterred by very high temperatures? Or is there a within-season breeding cycle accounting for radical changes in numbers of adults?
      James N. Stuart
      Albuquerque, NM
      jnstuart61 AT yahoo.com
      "All calculations based on experience elsewhere fail in New Mexico" -- Lew Wallace, New Mexico Territorial Governor, 1878-81

      From: "dennispaulson@..." <dennispaulson@...>
      To: pierredeviche <deviche@...>
      Cc: SoWestOdes@yahoogroups.com
      Sent: Sunday, August 11, 2013 3:45 PM
      Subject: Re: [SoWestOdes] 08/11: Papago Park, Phoenix, Maricopa, AZ

      From all over the Southwest, the surveys seem to point generally to the presence of Common Green Darners and the absence of Variegated Meadowhawks at this time of year. These two migratory species seem to be doing something different from that diffuse evidence.

      Dennis Paulson

      ----- Original Message -----
      From: "pierredeviche" <deviche@...>
      To: SoWestOdes@yahoogroups.com
      Sent: Sunday, August 11, 2013 12:34:37 PM
      Subject: [SoWestOdes] 08/11: Papago Park, Phoenix, Maricopa, AZ

      Twenty-one species were on the wing this morning (08/11) at the Papago
      Park ponds in Phoenix, Maricopa Co., AZ (8:15 AM – 10:15 AM; sunny,
      calm, 95 F):

      1. Red-tailed Pennant, Brachymesia furcata: 3
      2. Black Setwing, Dythemis nigrescens: 3
      3. Western Pondhawk, Erythemis collocata: widespread
      4. Plateau Dragonlet, Erythrodiplax basifusca: 1 male
      5. Comanche Skimmer, Libellula comanche: 15
      6. Widow Skimmer, Libellula luctuosa: 6
      7. Flame Skimmer, Libellula saturata: 2 males
      8. Roseate Skimmer, Orthemis ferruginea: 4
      9. Blue Dasher, Pachydiplax longipennis: abundant
      10. Spot-winged Glider, Pantala hymenaea: 2
      11. Wandering Glider, Pantala flavescens: 1
      12. Mexican Amberwing, Perithemis intensa: 10
      13. Black Saddlebags, Tramea lacerata: 6
      14. Red Saddlebags, Tramea onusta: 2
      15. Common Green Darner, Anax junius: 6
      16. Blue-eyed Darner, Rhionaeschna multicolor: 2
      17. Blue-ringed Dancer, Argia sedula: 5
      18. Dusky Dancer, Argia translata: 10
      19. Familiar Bluet, Enallagma civile: 3 males
      20. Citrine Forktail, Ischnura hastata: 10
      21. Rambur's Forktail, Ischnura ramburii: widespread

      Pierre Deviche, Phoenix, AZ.

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