{"id":1201,"date":"2026-08-14T01:45:00","date_gmt":"2026-08-13T16:45:00","guid":{"rendered":"https:\/\/onepress.co.kr\/?post_type=briefing&p=1201"},"modified":"2026-08-14T01:46:59","modified_gmt":"2026-08-13T16:46:59","slug":"2026-08-14-penguin-pink-guano-diet-vi","status":"publish","type":"briefing","link":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-08-14-penguin-pink-guano-diet-vi\/","title":{"rendered":"\u1ea2nh v\u1ec7 tinh ch\u1ee5p c\u00e1c \u0111\u1ed1m m\u00e0u h\u1ed3ng \u1edf Nam C\u1ef1c cho th\u1ea5y chim c\u00e1nh c\u1ee5t \u0111\u00e3 \u0103n g\u00ec"},"content":{"rendered":"

2026-08-14 01:45 KST<\/strong><\/p>\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 s\u1eed d\u1ee5ng ph\u00e2n t\u00edch v\u1ec7 tinh v\u1ec1 c\u00e1c v\u1ebft ph\u00e2n m\u00e0u h\u1ed3ng tr\u00ean b\u1edd bi\u1ec3n Nam C\u1ef1c \u0111\u1ec3 theo d\u00f5i xem chim c\u00e1nh c\u1ee5t Ad\u00e9lie \u0103n nhi\u1ec1u nhuy\u1ec5n th\u1ec3 hay c\u00e1 h\u01a1n.<\/p>\n

V\u1ec7 tinh kh\u00f4ng tr\u1ef1c ti\u1ebfp nh\u00ecn th\u1ea5y m\u1ed9t con chim c\u00e1nh c\u1ee5t n\u00e0o \u0111ang \u0103n, nh\u01b0ng k\u1ebft qu\u1ea3 d\u1ef1a tr\u00ean t\u00edn hi\u1ec7u m\u00e0u \u1edf c\u1ea5p \u0111\u1ed9 thu\u1ed9c \u0111\u1ecba \u0111\u01b0\u1ee3c hi\u1ec7u ch\u1ec9nh b\u1eb1ng c\u00e1c m\u1eabu th\u1ef1c \u0111\u1ecba.<\/p>\n

T\u1ea1i sao ph\u00e2n c\u00f3 m\u00e0u h\u1ed3ng?<\/h2>\n

Khi chim c\u00e1nh c\u1ee5t Adelie \u0103n nhi\u1ec1u nhuy\u1ec5n th\u1ec3, ph\u00e2n c\u1ee7a ch\u00fang chuy\u1ec3n sang m\u00e0u h\u1ed3ng ho\u1eb7c cam do s\u1eafc t\u1ed1 \u0111\u1ecf c\u00f3 trong nhuy\u1ec5n th\u1ec3. T\u1ef7 l\u1ec7 c\u00e1 c\u00e0ng cao th\u00ec \u0111\u1eb7c \u0111i\u1ec3m m\u00e0u s\u1eafc c\u00e0ng kh\u00e1c nhau. Nh\u1eefng khu \u1ed5 chu\u1ed9t l\u1edbn \u0111\u1ec3 l\u1ea1i nh\u1eefng v\u1ebft b\u1ea9n r\u1ed9ng tr\u00ean b\u1ec1 m\u1eb7t \u0111\u00e1, do \u0111\u00f3 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 m\u00e0u s\u1eafc trong h\u00ecnh \u1ea3nh v\u1ec7 tinh Landsat d\u1ecdc theo b\u1edd bi\u1ec3n Nam C\u1ef1c kh\u00f4ng c\u00f3 c\u00e2y c\u1ed1i.<\/p>\n

B\u1ea1n \u0111\u00e3 thay \u0111\u1ed5i ch\u1ebf \u0111\u1ed9 \u0103n u\u1ed1ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed sinh s\u1ea3n, thu th\u1eadp m\u1eabu ph\u00e2n v\u00e0 x\u00e1c nh\u1eadn th\u00e0nh ph\u1ea7n c\u1ee7a ch\u1ebf \u0111\u1ed9 \u0103n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng ph\u00e2n t\u00edch \u0111\u1ed3ng v\u1ecb \u1ed5n \u0111\u1ecbnh. C\u00e1c k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi \u0111\u1eb7c \u0111i\u1ec3m ph\u1ea3n x\u1ea1 c\u1ee7a t\u1eebng b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c v\u1ec7 tinh \u0111o \u0111\u01b0\u1ee3c. Sau \u0111\u00f3, b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u00f4 h\u00ecnh th\u1ed1ng k\u00ea, ch\u00fang t\u00f4i \u0111\u00e3 x\u00e2y d\u1ef1ng l\u1ea1i nh\u1eefng thay \u0111\u1ed5i trong ch\u1ebf \u0111\u1ed9 \u0103n u\u1ed1ng c\u1ee7a h\u01a1n 100 c\u1ed9ng \u0111\u1ed3ng quanh Nam C\u1ef1c t\u1eeb n\u0103m 1984 \u0111\u1ebfn n\u0103m 2013.<\/p>\n

\"\u1ea2nh
\u0110\u00e2y l\u00e0 h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1ec3 minh h\u1ecda m\u1ed9t ch\u1ee7 \u0111\u1ec1 v\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0 \u1ea3nh ch\u1ee5p m\u1ed9t c\u1ea3nh ho\u1eb7c quan s\u00e1t th\u1ef1c t\u1ebf.<\/figcaption><\/figure>\n

B\u0103ng bi\u1ec3n v\u00e0 th\u1ee9c \u0103n c\u00f3 m\u1ed1i li\u00ean h\u1ec7 nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n

\u1ede B\u00e1n \u0111\u1ea3o Nam C\u1ef1c v\u00e0 T\u00e2y Nam C\u1ef1c, n\u01a1i c\u00f3 \u00edt b\u0103ng bi\u1ec3n, t\u1ef7 l\u1ec7 nhuy\u1ec5n th\u1ec3 c\u00f3 xu h\u01b0\u1edbng cao. \u1ede \u0110\u00f4ng Nam C\u1ef1c, n\u01a1i b\u0103ng l\u1edbn h\u01a1n, t\u1ef7 l\u1ec7 c\u00e1 cao. Ngay c\u1ea3 thu\u1ed9c \u0111\u1ecba \u0111\u00f3 c\u0169ng \u0111\u00e3 thay \u0111\u1ed5i ch\u1ebf \u0111\u1ed9 \u0103n u\u1ed1ng khi \u0111i\u1ec1u ki\u1ec7n b\u0103ng thay \u0111\u1ed5i t\u1eeb n\u0103m n\u00e0y sang n\u0103m kh\u00e1c. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y nh\u1eefng thay \u0111\u1ed5i trong b\u0103ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy\u1ec1n qua l\u01b0\u1edbi th\u1ee9c \u0103n \u0111\u1ebfn \u0111\u1ed9ng v\u1eadt \u0103n th\u1ecbt.<\/p>\n

C\u00f3 ph\u1ea3i lu\u00f4n lu\u00f4n t\u1ed1t h\u01a1n n\u1ebfu c\u00f3 nhi\u1ec1u c\u00e1?<\/h2>\n

C\u00e1c nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng ch\u1ebf \u0111\u1ed9 \u0103n t\u1eadp trung v\u00e0o c\u00e1 c\u00f3 xu h\u01b0\u1edbng li\u00ean quan \u0111\u1ebfn xu h\u01b0\u1edbng d\u00e2n s\u1ed1 l\u00e2u d\u00e0i v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n kh\u1ecfe m\u1ea1nh c\u1ee7a con c\u00e1i. Tuy nhi\u00ean, ch\u1ec9 m\u00e0u s\u1eafc th\u00f4i kh\u00f4ng th\u1ec3 quy\u1ebft \u0111\u1ecbnh t\u01b0\u01a1ng lai c\u1ee7a d\u00e2n s\u1ed1. C\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c c\u0169ng c\u00f3 t\u00e1c d\u1ee5ng, bao g\u1ed3m \u0111\u00e1nh b\u1eaft c\u00e1, \u0111\u1ed9ng v\u1eadt \u0103n th\u1ecbt, \u0111i\u1ec1u ki\u1ec7n n\u01a1i sinh s\u1ea3n v\u00e0 th\u1eddi ti\u1ebft.<\/p>\n

Nh\u1eefng h\u1ea1n ch\u1ebf v\u00e0 c\u00e1c b\u01b0\u1edbc ti\u1ebfp theo c\u1ee7a nghi\u00ean c\u1ee9u l\u00e0 g\u00ec?<\/h2>\n

Giai \u0111o\u1ea1n ph\u00e2n t\u00edch k\u00e9o d\u00e0i \u0111\u1ebfn n\u0103m 2013 v\u00e0 kh\u00f4ng tr\u1ef1c ti\u1ebfp bao g\u1ed3m s\u1ef1 s\u1ee5t gi\u1ea3m b\u0103ng bi\u1ec3n \u1edf Nam C\u1ef1c k\u1ef7 l\u1ee5c g\u1ea7n \u0111\u00e2y. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u d\u1ef1 \u0111\u1ecbnh ti\u1ebfp t\u1ee5c theo d\u00f5i b\u1eb1ng d\u1eef li\u1ec7u Landsat 8\u00b79. Ph\u00e2n t\u00edch m\u00e0u v\u1ec7 tinh c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 c\u00f3 th\u1ec3 quan s\u00e1t nhi\u1ec1u l\u1ea7n to\u00e0n b\u1ed9 Nam C\u1ef1c kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn, nh\u01b0ng n\u00f3 kh\u00f4ng th\u1ec3 thay th\u1ebf cho vi\u1ec7c x\u00e1c minh th\u1ef1c \u0111\u1ecba.<\/p>\n

t\u00e0i li\u1ec7u ngu\u1ed3n ch\u00ednh th\u1ee9c<\/h2>\n

NASA Earth Observatory<\/a><\/p>\n

Current Biology study<\/a><\/p>\n

PubMed record<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

B\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch m\u00e0u s\u1eafc ph\u00e2n c\u1ee7a chim c\u00e1nh c\u1ee5t Adelie b\u1eb1ng v\u1ec7 tinh, h\u1ecd c\u00f3 th\u1ec3 t\u00e1i hi\u1ec7n l\u1ea1i nh\u1eefng thay \u0111\u1ed5i trong ch\u1ebf \u0111\u1ed9 \u0103n c\u1ee7a ch\u00fang trong 30 n\u0103m qua. M\u00e0u h\u1ed3ng bi\u1ec3u th\u1ecb ch\u1ebf \u0111\u1ed9 \u0103n c\u00f3 t\u1ef7 l\u1ec7 nhuy\u1ec5n th\u1ec3 cao.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-1201","briefing","type-briefing","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing\/1201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing"}],"about":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/types\/briefing"}],"wp:attachment":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=1201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}