{"id":7885,"date":"2016-07-01T10:30:36","date_gmt":"2016-07-01T15:30:36","guid":{"rendered":"https:\/\/2016.wildlifepreservation.ca\/?p=7885"},"modified":"2016-10-27T11:17:29","modified_gmt":"2016-10-27T16:17:29","slug":"mottled-duskywing","status":"publish","type":"post","link":"https:\/\/wildlifepreservation.ca\/fr\/mottled-duskywing\/","title":{"rendered":"Mottled Duskywing"},"content":{"rendered":"

[et_pb_section admin_label=\u00a0\u00bbsection\u00a0\u00bb][et_pb_row admin_label=\u00a0\u00bbRow\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″][et_pb_text admin_label=\u00a0\u00bbText\u00a0\u00bb background_layout=\u00a0\u00bblight\u00a0\u00bb text_orientation=\u00a0\u00bbleft\u00a0\u00bb use_border_color=\u00a0\u00bboff\u00a0\u00bb border_color=\u00a0\u00bb#ffffff\u00a0\u00bb border_style=\u00a0\u00bbsolid\u00a0\u00bb]<\/p>\n

Erynnis martialis<\/em>
\n<\/em>Species Status:<\/strong> Endangered in Canada (COSEWIC assessment); Endangered in Ontario
\nAction Required:<\/strong> Population augmentation, reintroduction and\/or assisted colonization<\/p>\n

The plants that mottled duskywings feed on require dry sandy areas or limestone alvars found in very few places in eastern Canada. Unfortunately, these sensitive areas are also prime sites for human development.<\/p>\n

Snapshot
\n<\/strong>The yellow-brown spots on the wings of this medium-sized butterfly give this endangered species its mottled appearance. Mottled duskywing larvae build silk leaf-nests, where they overwinter before emerging as adults between mid-May and late June. Males and females carry \u201cscent scales,\u201d which contain pheromones for attracting the opposite sex. Males are often found \u201cpuddling\u201d \u2014 sipping water from moist soil to get salt and essential minerals. During mating, those nutrients are transferred to the female through the male\u2019s sperm, which in turn improve the health of the female\u2019s eggs.<\/p>\n

Habitat
\n<\/strong>Unlike many other butterflies that prefer lush meadows, mottled duskywings typically inhabit dry, partially shaded areas. These include sandy patches within woodlands, open barrens and places with shallow soil and sparse vegetation.<\/p>\n

Range
\n<\/strong>Historically, mottled duskywings could be found throughout the eastern and central U.S. and parts of south-central Canada. Unfortunately, their populations have plummeted to the point where they may have disappeared from many U.S. states in their core range. In Canada, these butterflies once extended into southwestern Quebec, southern Ontario and southeastern Manitoba. However, mottled duskywings have not been seen in Quebec since the 1950s, and in Ontario, they are only found in small, isolated populations. In Manitoba, they are limited to a small area of pine woodland in the southeast.
\n<\/strong><\/p>\n

Threats
\n<\/strong>Habitat destruction and fragmentation caused by human development ranks as a primary threat to the mottled duskywing. Meanwhile, the plants these butterflies depend on are being eaten by deer and crowded out by invasive species. Spraying to control gypsy moth populations is also taking a toll on the mottled duskywing.<\/p>\n

\u00a0Recommended Recovery Actions
\n<\/strong>The Ontario Recovery Strategy for mottled duskywing calls for a number of conservation measures. These include mapping suitable habitat, protecting and managing habitat, analyzing the viability of current populations, and identifying the potential for augmenting existing populations, reintroducing populations to historical sites or assisting the colonization of new sites.<\/p>\n

\u00a0What We Are Doing
\n<\/strong>The mottled duskywing is on Wildlife Preservation Canada\u2019s priority list for potential future action. Find out how we are currently saving other Canadian butterflies,<\/a> such as the Taylor\u2019s checkerspot and Karner blue, and how you can make a difference.<\/p>\n

Additional Information
\n<\/strong>Federal Species at Risk Profile: Mottled Duskywing
\n<\/a>Recovery Strategy for the Mottled Duskywing in Ontario<\/a><\/p>\n

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The plants that mottled duskywings feed on require dry sandy areas or limestone alvars found in very few places in eastern Canada. 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