{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-c03aa079.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-517835be.css\" media=\"all\" /\u003e\n\u003cdiv data-title='+4:3 Number of Monarch butterflies wintering in Mexico dropped 28.1 percent this year' data-url='/boclips/videos/5c54bca5d8eafeecae12e3b3' data-video-url='/boclips/videos/5c54bca5d8eafeecae12e3b3' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\n+4:3 Number of Monarch butterflies wintering in Mexico dropped 28.1 percent this year\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eFILE: Sierra Chincua, Michoacan - February 20111. Wide of butterflies flying among trees in woodland area2. Close-up of monarch butterfly3. Various of large number of butterflies settled in tree4. Close-up of butterfly5. Pan of...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eFILE: Sierra Chincua, Michoacan - February 2011\u003cbr/\u003e1. Wide of butterflies flying among trees in woodland area\u003cbr/\u003e2. Close-up of monarch butterfly\u003cbr/\u003e3. Various of large number of butterflies settled in tree\u003cbr/\u003e4. Close-up of butterfly\u003cbr/\u003e5. Pan of butterflies flying among trees\u003cbr/\u003eMexico City, Mexico - 15 March 2012\u003cbr/\u003e6. Wide of start of news conference\u003cbr/\u003e7. Mid of reporter \u003cbr/\u003e8. SOUNDBITE (Spanish) Luis Fueyo, National Commissioner for Natural Protected Areas: \u003cbr/\u003e\"This atypical drought was also linked to the phenomenon of changing rainfall. The rainfall pattern changed and these two factors are influencing and affecting the fourth generation (of butterflies).\"\u003cbr/\u003e9. Cutaway of reporters\u003cbr/\u003e10. SOUNDBITE (Spanish) Luis Fueyo, National Commissioner for Natural Protected Areas:\u003cbr/\u003e\"At the end, these changes left a population (of butterflies) that will come back to Mexico. The fifth generation will return diminished.\"\u003cbr/\u003e11. Wide of news conference\u003cbr/\u003eThe number of Monarch butterflies wintering in Mexico dropped by more than a quarter this year - in part because of droughts in parts of the US and Canada where they breed and migrate.\u003cbr/\u003eThat's according to a report released on Thursday.\u003cbr/\u003eSome entomologists blame changing climate patterns for the 28.1 percent drop in numbers.\u003cbr/\u003e\"This atypical drought was also linked to the phenomenon of changing rainfall,\" explained Luis Fueyo, Mexico's National Commissioner of Natural Protected Areas, at a news conference on Thursday.\u003cbr/\u003e\"The rainfall pattern changed and these two factors are influencing and affecting the fourth generation (of butterflies).\" \u003cbr/\u003eThe number of butterflies spending the winter in the fir and pine forests on mountaintops in central Mexico have varied wildly in recent years.\u003cbr/\u003eConcern rose two years ago, when their numbers dropped by 75 percent in the wintering grounds, the lowest level since comparable record-keeping began in 1993. \u003cbr/\u003eThe population partially recovered last year when the number of butterflies nearly doubled from that record low point.\u003cbr/\u003eThe survey carried out by the WWF (Worldwide Fund for Nature), private donors and Mexico's National Commission on Protected Areas measures the millions of butterflies that arrive each year based on the number of acres of forest they cover. \u003cbr/\u003eSince the butterflies cluster by the thousands on tree branches, apparently to conserve heat, counting individuals would be near impossible.\u003cbr/\u003eThis year, the Monarchs covered 7.14 acres (2.89 hectares) of forest, compared to about 9.9 acres (4 hectares) last year and 4.7 acres (1.9 hectares) two years ago.\u003cbr/\u003eThe highest documented migration occurred in 1996, when nearly 45 acres (18.19 hectares) of butterflies were spotted in the Monarch reserve, a series of mountaintops in a protected area just west of Mexico City.\u003cbr/\u003eThe butterflies depend on the mountaintop pine forests in western Michoacan state which give the insects protection against winter rain and cold.\u003cbr/\u003eMexico had trumpeted its success in the battle against logging in the monarch reserve but conservationists say deforestation be a factor affecting Monarch numbers.\u003cbr/\u003eHowever, illegal tree-cutting has been reported as only affecting about 3.7 acres (1.5 hectares) in 2010, down 97 percent from the preceding year.\u003cbr/\u003eAt its peak in 2005, logging devastated as many as 1,140 acres (461 hectares) annually.\u003cbr/\u003e\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead 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