Projektin Taiwan Dragonflies and Damselflies Päiväkirja

Päiväkirja-arkisto kohteelle lokakuu 2018

lokakuu 31, 2018

Statistics as of Oct. 31, 2018

Statistics as of Oct. 31, 2018

....item......... ....number.... comparing with prior month
observation: .....2,733........+485
Species (& ssp): 105.............+12 (108)
people:.................186.............+30
Member:...............44...............+3

There were 458 observations increased in Oct. Comparing with Sept. it was more than 33% increase. Before winter comes, the statistics of Oct marked the culmination of the year, even though the number of odonates in the fields has been dwindling since Sept. Not just the obs increased drastically, there were also 12 new species added to the Project. Thanks to @cleanylee , whose obs are the major driving force pushing the species number to 105. As stated in prior journals, 3 ssp were not counted by the system, so there are 108 species and subspecies collected in the Project so far. Thank you very much for your contribution.

Meanwhile, I also wish to mention that @doggy0406 topped both boards of “Most Observations” & “Most Species” in Oct. though he topped the latter one few months ago already. Looking at his obs, those were taken all over Taiwan, I couldn’t help admiring his enthusiasm.

In a week, it will be the “beginning of winter” (立冬) in traditional calendar (Nov. 7), the number of odonates in the fields is expected to further reduced. Perhaps, you may take a break for field observation, instead organize the obs made this year and study odonates in the winter.

Here are the new species added in Oct.

105..海神弓蜓 Macromia clio Ris, 1916………………………………............ 10/25

104*岷峨弓蜓 Hemicordulia mindana nipponica Asahina, 1980 ...10/25 (1)
103..朱紅細蟌 Ceriagrion nipponicum Asahina, 1967……………….... 10/25
102..黃腹細蟌 Ceriagrion melanurum Selys, 1876……………….....……10/25

101...舞鋏晏蜓 Gynacantha saltatrix Martin, 1909 …………….…...…...10/10
100*倭鋏晏蜓 Gynacantha japonica Bartenef, 1909………....………….10/10

99...源埡晏蜓..Sarasaeschna pyanan (Asahina, 1951)........................10/9
98*.日清晏蜓..Sarasaeschna lieni (Yeh & Chen, 2000)....................10/9
97...台灣弓蜓..Somatochlora taiwana Inoue & Yokota, 2001………..10/9
96...紅脈蜻蜓..Sympetrum fonscolombii (Selys, 1840).....................10/8
95...長尾蜻蜓..Sympetrum cordulegaster (Selys, 1883)....................10/6
94...亞東細蟌..Ischnura asiatica (Brauer, 1865)...................................10/3

New members joined in Oct are
No. …. User_id… date

  1. chunghsin 10/3
  2. david001 10/13
  3. chiao23 10/24

Remarks:
(1) 104*岷峨弓蜓 Hemicordulia mindana nipponica Asahina, 1980 added on Oct. 25. cleanylee put “H. mindana” to this ob, but it’s the ssp. “H. m. nipponica” on Taiwan’s checklist, and so I listed the species.
(2) Those with * mark after species number indicate “ID Needed”.

Julkaistu lokakuu 31, 2018 05:44 IP. käyttäjältä aru aru | 0 kommenttia | Jätä kommentti