{"id":18558,"date":"2020-07-29T06:52:13","date_gmt":"2020-07-29T06:52:13","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=18558"},"modified":"2020-07-29T06:52:13","modified_gmt":"2020-07-29T06:52:13","slug":"mass-die-off-of-migratory-birds-baffles-scientists-in-southwestern-u-s","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/zoology\/mass-die-off-of-migratory-birds-baffles-scientists-in-southwestern-u-s\/","title":{"rendered":"H\u00e0ng lo\u1ea1t chim di c\u01b0 ch\u1ebft \u1edf T\u00e2y Nam Hoa K\u1ef3 khi\u1ebfn c\u00e1c nh\u00e0 khoa h\u1ecdc b\u1ed1i r\u1ed1i"},"content":{"rendered":"

H\u00e0ng lo\u1ea1t chim di c\u01b0 ch\u1ebft \u1edf T\u00e2y Nam Hoa K\u1ef3 khi\u1ebfn c\u00e1c nh\u00e0 khoa h\u1ecdc b\u1ed1i r\u1ed1i<\/h2>\n\n

S\u1ef1 ki\u1ec7n ch\u01b0a t\u1eebng c\u00f3 khi\u1ebfn c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111au \u0111\u1ea7u<\/h2>\n\n

H\u00e0ng ngh\u00ecn con chim di c\u01b0 \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y \u0111\u00e3 ch\u1ebft tr\u00ean kh\u1eafp T\u00e2y Nam Hoa K\u1ef3, khi\u1ebfn c\u00e1c nh\u00e0 khoa h\u1ecdc hoang mang v\u00e0 lo l\u1eafng. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 l\u00e0 “ch\u01b0a t\u1eebng c\u00f3”, \u0111\u00e3 \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o \u1edf \u00edt nh\u1ea5t 5 ti\u1ec3u bang c\u1ee7a Hoa K\u1ef3 v\u00e0 4 ti\u1ec3u bang c\u1ee7a Mexico.<\/p>\n\n

C\u00e1c lo\u00e0i b\u1ecb \u1ea3nh h\u01b0\u1edfng v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1<\/h2>\n\n

Nh\u1eefng con chim ch\u1ebft thu\u1ed9c nhi\u1ec1u lo\u00e0i kh\u00e1c nhau, bao g\u1ed3m c\u00fa, h\u1ecda mi, chim ru\u1ed3i, loon, ru\u1ed3i, g\u00f5 ki\u1ebfn v\u00e0 c\u00e1c lo\u00e0i kh\u00e1c. \u0110\u00e1ng ch\u00fa \u00fd, c\u00e1c lo\u00e0i chim b\u1ea3n \u0111\u1ecba, ch\u1eb3ng h\u1ea1n nh\u01b0 chim ch\u1ea1y v\u00e0 chim c\u00fat, kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi hi\u1ec7n t\u01b0\u1ee3ng ch\u1ebft h\u00e0ng lo\u1ea1t n\u00e0y.<\/p>\n\n

Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ch\u00fa \u00fd khi h\u00e0ng tr\u0103m con chim ch\u1ebft \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n t\u1ea1i Tr\u1ea1i T\u00ean l\u1eeda White Sands \u1edf New Mexico v\u00e0o th\u00e1ng 8. K\u1ec3 t\u1eeb \u0111\u00f3, c\u00e1c b\u00e1o c\u00e1o t\u01b0\u01a1ng t\u1ef1 \u0111\u00e3 xu\u1ea5t hi\u1ec7n t\u1eeb c\u00e1c \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c \u1edf New Mexico, c\u0169ng nh\u01b0 Arizona, Texas, Colorado v\u00e0 Chihuahua, Mexico.<\/p>\n\n

Nh\u1eefng nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 \u0111ang \u0111\u01b0\u1ee3c \u0111i\u1ec1u tra<\/h2>\n\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111ang t\u00edch c\u1ef1c t\u00ecm hi\u1ec3u c\u00e1c nguy\u00ean nh\u00e2n ti\u1ec1m \u1ea9n g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng ch\u1ebft h\u00e0ng lo\u1ea1t. M\u1ed9t gi\u1ea3 thuy\u1ebft l\u00e0 v\u00f4 s\u1ed1 c\u00e1c v\u1ee5 ch\u00e1y r\u1eebng \u0111ang b\u00f9ng ph\u00e1t d\u1ecdc theo B\u1edd T\u00e2y c\u00f3 th\u1ec3 \u0111\u00e3 g\u00f3p ph\u1ea7n v\u00e0o c\u00e1i ch\u1ebft c\u1ee7a nh\u1eefng con chim do h\u00edt ph\u1ea3i kh\u00f3i ho\u1eb7c thay \u0111\u1ed5i l\u1ed9 tr\u00ecnh b\u1eaft bu\u1ed9c. M\u1ed9t kh\u1ea3 n\u0103ng kh\u00e1c l\u00e0 \u0111\u1ee3t l\u1ea1nh \u0111\u1ed9t ng\u1ed9t g\u1ea7n \u0111\u00e2y \u0111\u00e3 t\u1ea5n c\u00f4ng m\u1ed9t s\u1ed1 khu v\u1ef1c c\u1ee7a D\u00e3y n\u00fai Rocky v\u00e0 Cao nguy\u00ean. M\u1ed9t \u0111\u1ee3t h\u1ea1n h\u00e1n \u1edf T\u00e2y Nam, \u0111\u00e3 l\u00e0m gi\u1ea3m m\u1ea1nh qu\u1ea7n th\u1ec3 c\u00f4n tr\u00f9ng m\u00e0 nhi\u1ec1u lo\u00e0i chim di c\u01b0 ph\u1ea3i d\u1ef1a v\u00e0o l\u00e0m th\u1ee9c \u0103n, c\u0169ng \u0111ang \u0111\u01b0\u1ee3c xem x\u00e9t.<\/p>\n\n

Nh\u1eefng con chim g\u1ea7y tr\u01a1 x\u01b0\u01a1ng v\u00e0 ch\u1ebft khi \u0111ang bay<\/h2>\n\n

Nhi\u1ec1u con chim ch\u1ebft m\u00e0 c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u thu th\u1eadp \u0111\u01b0\u1ee3c c\u00f3 d\u1ea5u hi\u1ec7u g\u1ea7y tr\u01a1 x\u01b0\u01a1ng, cho th\u1ea5y r\u1eb1ng ch\u00fang c\u00f3 th\u1ec3 \u0111\u00e3 ph\u1ea3i v\u1eadt l\u1ed9n \u0111\u1ec3 t\u00ecm ki\u1ebfm th\u1ee9c \u0103n. M\u1ed9t s\u1ed1 con chim th\u1eadm ch\u00ed c\u00f3 v\u1ebb nh\u01b0 \u0111\u00e3 \u0111\u01a1n gi\u1ea3n r\u01a1i kh\u1ecfi b\u1ea7u tr\u1eddi khi \u0111ang bay.<\/p>\n\n

“Ch\u00fang th\u1ef1c s\u1ef1 ch\u1ec9 c\u00f2n l\u1ea1i l\u00f4ng v\u00e0 x\u01b0\u01a1ng”, Allison Salas, m\u1ed9t nghi\u00ean c\u1ee9u sinh t\u1ea1i \u0110\u1ea1i h\u1ecdc bang New Mexico, ng\u01b0\u1eddi \u0111\u00e3 thu th\u1eadp x\u00e1c chim, cho bi\u1ebft. “G\u1ea7n nh\u01b0 th\u1ec3 ch\u00fang \u0111\u00e3 bay cho \u0111\u1ebfn khi ch\u00fang kh\u00f4ng th\u1ec3 bay \u0111\u01b0\u1ee3c n\u1eefa”.<\/p>\n\n

Th\u1ea3m k\u1ecbch qu\u1ed1c gia v\u00e0 s\u1ef1 v\u00e0o cu\u1ed9c c\u1ee7a c\u00f4ng ch\u00fang<\/h2>\n\n

Martha Desmond, m\u1ed9t nh\u00e0 sinh th\u00e1i h\u1ecdc t\u1ea1i \u0110\u1ea1i h\u1ecdc bang New Mexico, \u0111\u00e3 m\u00f4 t\u1ea3 t\u00ecnh h\u00ecnh l\u00e0 “m\u1ed9t th\u1ea3m k\u1ecbch qu\u1ed1c gia”.<\/p>\n\n

“Th\u1eadt \u0111au l\u00f2ng khi ch\u1ee9ng ki\u1ebfn nhi\u1ec1u c\u00e1 th\u1ec3 v\u00e0 lo\u00e0i ch\u1ebft nh\u01b0 v\u1eady”, c\u00f4 n\u00f3i. “\u0110\u00f3 l\u00e0 m\u1ed9t l\u1eddi nh\u1eafc nh\u1edf v\u1ec1 m\u1ed1i li\u00ean h\u1ec7 gi\u1eefa c\u00e1c h\u1ec7 sinh th\u00e1i c\u1ee7a ch\u00fang ta”.<\/p>\n\n

C\u00f4ng ch\u00fang \u0111\u01b0\u1ee3c k\u00eau g\u1ecdi b\u00e1o c\u00e1o b\u1ea5t k\u1ef3 tr\u01b0\u1eddng h\u1ee3p chim ch\u1ebft b\u1ea5t th\u01b0\u1eddng n\u00e0o m\u00e0 h\u1ecd ph\u00e1t hi\u1ec7n th\u1ea5y b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng trang web iNaturalist ho\u1eb7c \u1ee9ng d\u1ee5ng d\u00e0nh cho thi\u1ebft b\u1ecb di \u0111\u1ed9ng. D\u1eef li\u1ec7u n\u00e0y c\u00f3 th\u1ec3 gi\u00fap c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1c lo\u00e0i v\u00e0 \u0111\u1ecba \u0111i\u1ec3m \u0111ang b\u1ecb \u1ea3nh h\u01b0\u1edfng n\u1eb7ng n\u1ec1 nh\u1ea5t.<\/p>\n\n

C\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba v\u00e0 ph\u00e2n t\u00edch s\u00e2u h\u01a1n<\/h2>\n\n

Nh\u1eefng ng\u01b0\u1eddi b\u1eaft g\u1eb7p chim ch\u1ebft ho\u1eb7c \u1ed1m n\u00ean c\u1ea9n th\u1eadn v\u00e0 \u0111eo g\u0103ng tay n\u1ebfu h\u1ecd c\u00f3 \u00fd \u0111\u1ecbnh thu th\u1eadp m\u1eabu v\u1eadt. Nh\u1eefng con chim s\u1ebd \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn Trung t\u00e2m S\u1ee9c kh\u1ecfe \u0110\u1ed9ng v\u1eadt hoang d\u00e3 Qu\u1ed1c gia \u1edf Wisconsin v\u00e0 Ph\u00f2ng th\u00ed nghi\u1ec7m Ph\u00e1p y c\u1ee7a S\u1edf C\u00e1 v\u00e0 \u0110\u1ed9ng v\u1eadt Hoang d\u00e3 Hoa K\u1ef3 \u1edf Oregon \u0111\u1ec3 ph\u00e2n t\u00edch s\u00e2u h\u01a1n. Tuy nhi\u00ean, c\u00e1c chuy\u00ean gia c\u1ea3nh b\u00e1o r\u1eb1ng c\u00f3 th\u1ec3 m\u1ea5t nhi\u1ec1u tu\u1ea7n ho\u1eb7c th\u1eadm ch\u00ed nhi\u1ec1u th\u00e1ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c nguy\u00ean nh\u00e2n g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng ch\u1ebft h\u00e0ng lo\u1ea1t.<\/p>","protected":false},"excerpt":{"rendered":"

H\u00e0ng lo\u1ea1t chim di c\u01b0 ch\u1ebft \u1edf T\u00e2y Nam Hoa K\u1ef3 khi\u1ebfn c\u00e1c nh\u00e0 khoa h\u1ecdc b\u1ed1i r\u1ed1i S\u1ef1 ki\u1ec7n ch\u01b0a t\u1eebng c\u00f3 khi\u1ebfn c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111au \u0111\u1ea7u…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[280],"tags":[1896,24241,24242,21472,24243],"class_list":["post-18558","post","type-post","status-publish","format-standard","hentry","category-zoology","tag-bird-conservation","tag-migratory-birds","tag-southwestern-u-s","tag-mass-die-off","tag-wildlife-crisis"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=18558"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18558\/revisions"}],"predecessor-version":[{"id":18559,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18558\/revisions\/18559"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=18558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=18558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=18558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}