Ntawm lub hom phiaj xiav npauj npaim

Lau - Marin Headlands

Zoo li muaj coob lwm huv cov tsiaj, ntawm lub hom phiaj xiav npauj npaim (Plebejus icarioides missionensis) yog ib qho uas gravely imperiled. No xyuas me me nyob rau hauv ib tawg tsam ntawm cov vaj tse alongside lab txuj kev ncau ntau duas kev loj hlob nyob rau hauv thiab ib ncig lub San Francisco Bay. Xyoo dhau los no npauj npaim yog twb pib uas tsis kam, nrog 175,000 acres uas zoo nkauj seaside morphing rau hauv sprawl. Hnub no lub nqaum sage siv cov nplauv thiab muaj ze li ntawm vanished zoo li cas seem me ntsis yog muaj tus nroj tsuag thiab tsiaj txhu.

Ntawm lub hom phiaj xiav yog ib tug tsiaj txhu uas nyob rau hauv hom Act Endangered, acchieving offical kev tiv thaiv nyob rau hauv 1976. Kev ob peb xyoo tas los no muaj teem rau es ua kom tus vaj tsev thiab cov xiav tom qab nws – nrog luag kawm. Ua ntej 2009 kawg xiav pom rau lub nroog yus nyob rau ntxaib Peaks hauv 1997 (thiab tejzaum nws tus 1970 lub ua ntej uas). Hnub no cov SF ua si thiab chaw ua si Department nrog Bay xwm muaj dog dig rov tsim los pab rau lub hom phiaj xiav rau Peaks ntxaib ntawm tsis muaj mob ceev Marin Headlands thiab San Bruno roob (tus xwb lwm qhov chaw tus npauj npaim tsis raug los ntawm). Kuv ntseeg tias xyoo tas los no lawv yuav tsum ze 30 cov neeg ya rau ntxaib Peaks. Xyoo no cov zauv no os, tab sis txog hnub Friday kuv nrhiav tau peb cov maum ovipositing hauv lupine – Thaum no cov pojniam twb zaum transplanted ob peb lub lis piam dhau los, yog vam cia rau lub neej yav tom ntej. Hmoov tsis caug xwb uas kuv pom tau li hauv lub Marin Headlands – thiab hopefully caug tau pom nyob ntawm tej ntxaib Peaks xyoo no (tseem tos seb 2011 cov ntaub ntawv).

Kuj ceeb tias tsis, nws puv tias reintroducing muaj hom yog cov nees nyuab. Ntawm lub hom phiaj xiav utilizes peb party lupine hom, Lupinus albifrons, formosus thiab variicolor. Tau ceev kom cov haiv neeg hom nrad tus invasives yuav tsum radical ntsuas nrog hnyav ncawv hauv herbicides (tiv thaiv fennel, pampas nyom thiab Fabkis txoj khaub rhuab – tab sis, nrog rau cov 136 tus nroj tsuag (Marin muaj)). Yog tsis paub dabtsi nyhuv cov herbicides muaj tsim cov (tsuas 17% tav ntawm lub qe rau kab ntsig) los yog dab tsi nws puas yuav ceev ntsaum haiv neeg uas yuav cov kab lia ntawm lub xiav. Tsis haiv ntsaum tus kab lia yuav ntau npaum li cas rau koj yuav predated, tiam sis tus ntsaum txawm tias haiv tsis yog rau invading hoards ntawm Argentine ntsaum. Thiab tsis tau lwm tseem ceeb neeg uas ua ntawv yog ib tug kabmob tshiab khiv pwm uas yog lupine nroj tsuag uas – ntsoog loj heev tus npauj npaim hauv 2010.

Yog koj muab no subspecies rau lwm cov neeg hauv lub icarioides txoj yog ib txoj hauv kev abundance striking. Plebejus kuv. moroensis ntawm ib sab ntug tebchaw hab txhawb yog tus npauj npaim ntau incredibly nyob rau hauv vaj tse zoo. Nws yog ib co kev txwv, tab sis, tsis tig xubntias ze li ntawm qhov teeb meem ntawm lub hom phiaj xiav yog. Kuv tuav tau tawm cia siab rau ib tus ntawm peb lub xeem San Francisco nyuaj – Yog hais tias hom kab tus yeem – nws yuav tsis mus kev ntawm tus Xerces.

Relocated poj niam - SF Peaks ntxaib

(xav paub ntau dluab nram qab no)

Same female - SF Peaks ntxaib

Aberrant male - Marin Headlands

Deformed male - Marin Headlands

This deformed male was found in the middle of a trail and could barely fly (see the curled right forewing). I attempted to move it off the trail when it crawled on my hand. Txwv tsis pub, I do not recommend ever handling endangered species!

And most importantly, special thanks to Liam O’Brien from Nature in the City for guiding me to these localities!