{"id":69044,"date":"2016-05-27T14:27:20","date_gmt":"2016-05-27T21:27:20","guid":{"rendered":"https:\/\/dev-clm-blog.pantheonsite.io\/?p=69044"},"modified":"2016-05-27T14:27:20","modified_gmt":"2016-05-27T21:27:20","slug":"documenting-fenders-blue-butterfly","status":"publish","type":"post","link":"https:\/\/blog.clminternship.org\/?p=69044","title":{"rendered":"Documenting Fender’s blue butterfly"},"content":{"rendered":"

It is butterfly season here in Eugene, Oregon and the Fender’s blue butterfly (Icaricia icarioides fenderi)\u00a0<\/em>has already reached its seasonal peak and is on the down slope much earlier than expected. \u00a0For most of my position with the West Eugene Wetlands I primarily monitor endangered\/rare wetland plants. \u00a0However, along with one of our monitored plant species, Kincaid’s lupine (Lupinus oreganus)<\/em>, is the Fender’s blue butterfly (FBB) that uses this endangered lupine as its larval host, laying its eggs on the underside of the plant’s leaves.<\/p>\n

\"Myself<\/a>

Myself with Kincaid’s lupine.<\/p><\/div>\n

One of the more populous BLM sites in Eugene for both lupine and FBB is Fir Butte, where I get to spend glorious afternoon after glorious afternoon catching butterflies. \u00a0This is something I did in my childhood and never imagined I would be getting paid to do later on in my adulthood. \u00a0In addition to FBB there is a look-a-like, the\u00a0silvery blue butterfly (Glaucopsyche lygdamus<\/em>) or SBB that also uses Kincaid’s lupine as a larval host, but instead lays its eggs along the stalk of the flowering raceme. \u00a0There are two minute physical differences between these species that we use as identification features when netting the butterflies. \u00a0First is the markings or “dots” along the border of the underside of the wings. \u00a0On SBB there is one row of dots and on FBB there are two rows of dots that can sometimes be very visible and other times, usually with an older butterfly, nearly impossible to distinguish. \u00a0So that is why we use the second identification feature for “back up”. \u00a0The cell-end bar located on the fore wing of the butterflies in from the row of markings is much narrower on the SBB than the FBB. \u00a0In addition, the row of dots\u00a0on SBB are much more circular than on FBB which tend to be more irregular-shaped spots.<\/p>\n

\"DSC00095\"<\/a>

A male Fender’s blue butterfly \u00a0with damaged wing. \u00a0Notice the faint second row of irregular-shaped markings along the wing border and the large cell-end bar.<\/p><\/div>\n

\"Mating<\/a>

Mating pair of Fender’s blue butterflies. (Awesome photo skills of Christine Calhoun).<\/p><\/div>\n

\"pair<\/a>

Mating pair of silvery blue butterflies. \u00a0Notice the one row of circular markings along the wing border.<\/p><\/div>\n

Our first mode of action in sampling FBB is to take a ratio of male FBB to male SBB. \u00a0My mentor, Christine, and I spread out among the lupine at Fir Butte with our nets and each sample around 10 to 15 butterflies. \u00a0We then\u00a0determine whether the butterfly\u00a0is Fender’s species or silvery as described above. \u00a0Second, we determine its sex by noting the color on the top of the wings. \u00a0Males in both species are a bright blue and female FBB are copper-colored whereas female SBB are a darker brown, both females have\u00a0some\u00a0blue on the body of the butterfly. We record all sexes of both species but use only the ratio of males to males for our next mode of action,\u00a0distance sampling, as it is much easier to see a bright blue male flying or sitting than it is to spot a brown female among the foliage. \u00a0Distance sampling occurs along six transects stretching the length of Fir Butte. \u00a0One person walks the transect with a distance pole held perpendicular to the transect calling out to the second person, the recorder, the distance (in half-meter increments) from the center of the transect the male butterfly was seen along with information on whether it was flying or sitting, the cluster size, and sex ratio if females were in the cluster. \u00a0An ideal day for sampling FBB is above 60 degrees, a light breeze, and sunny. \u00a0It’s the most optimal conditions for the butterflies and I’d say the most optimal for me, too. \u00a0Who doesn’t like 60 degree sunny days?<\/p>\n

\"Male<\/a>

Male Fender’s blue butterfly.<\/p><\/div>\n

\"Female<\/a>

Female Fender’s blue butterfly on its larval host, Kincaid’s lupine.<\/p><\/div>\n

Other efforts towards the success of the Fender’s blue butterfly are being put forth by some members of the West Eugene Wetlands Partnership such as the Institute of Applied Ecology who are making “nectar islands” at Fir Butte. \u00a0Some native nectar species of FBB include Checkermallow\u00a0(Sidalcea malviflore)<\/em>, Oregon geranium\u00a0(Geranium oreganum),<\/em> Camus\u00a0(Camassia quamash\u00a0<\/em>and\u00a0C. leichtlinii)<\/em>, Oregon sunshine\u00a0(Eriophylluym lanatum)<\/em>, and the Oregon iris\u00a0(Iris tenax)<\/em>.<\/p>\n

Thanks for listening and ta-ta for now.<\/p>\n

Danica Maloney<\/p>\n

West Eugene Wetlands<\/p>\n

Oregon<\/p>\n","protected":false},"excerpt":{"rendered":"

It is butterfly season here in Eugene, Oregon and the Fender’s blue butterfly (Icaricia icarioides fenderi)\u00a0has already reached its seasonal peak and is on the down slope much earlier than expected. \u00a0For most of my position with the West Eugene … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":7264,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.clminternship.org\/index.php?rest_route=\/wp\/v2\/posts\/69044"}],"collection":[{"href":"https:\/\/blog.clminternship.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.clminternship.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.clminternship.org\/index.php?rest_route=\/wp\/v2\/users\/7264"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.clminternship.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=69044"}],"version-history":[{"count":5,"href":"https:\/\/blog.clminternship.org\/index.php?rest_route=\/wp\/v2\/posts\/69044\/revisions"}],"predecessor-version":[{"id":69233,"href":"https:\/\/blog.clminternship.org\/index.php?rest_route=\/wp\/v2\/posts\/69044\/revisions\/69233"}],"wp:attachment":[{"href":"https:\/\/blog.clminternship.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=69044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.clminternship.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=69044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.clminternship.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=69044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}