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„Cuatro Cienegas Natural Protected Area, Chihuahuan Desert, Mexico.“

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INTRODUCTION: IN THE MIDDLE OF THE CHIHUAHUAN DESERT LIES AN UNUSUAL WETLAND C ALLED CUATRO CIENEGAS ("FOUR MARSHES") RECENTLY SET ASIDE BY MEXICO AS A BIOLOG ICAL RESERVE. DERIVING ITS MOISTURE FROM DEEP AQUIFERS, THE LAGUNAS (LAKES) AN D POZAS (POOLS) OF THIS 500-SQUARE-MILE REGION HAVE BEEN ISOLATED FROM ANY OTHER WATER SYSTEM FOR MILLIONS OF YEARS. WATER TEMPERATURES RANGE FROM 68 DEGREES AND COL DER TO BETWEEN 91 AND 93 DEGREES. HERE A RICH POPULATION OF PLANTS AND ANIMALS HAS DEVELOPED, SOME ENDEMIC, SOME UNIQUE TO THE REGION. NATURALIST/PHOTOGRAPHER GE ORGE GRALL HAS ILLUSTRATED THE VARIOUS STRATA THAT COMPRISE THIS ECOSYSTEM. -- LEGEND: Long-stemmed water lilies (Nymphaea ampla) reach for the hot Mexican s un while schools of pupfish, tetras, and cichlids feed in their shade. Because the wate r comes from deep underground, no sediments mar visibility, which is limited on ly by distance and light. Copyright: National Geographic / George Grall

agenturmetriks gefiel dieses Kunstwerk 2011-12-15 22:31:39 UTC
Gustavo Monky Urquieta gefiel dieses Kunstwerk 2012-01-29 19:38:25 UTC
Nina Mierowska gefiel dieses Kunstwerk 2012-02-05 17:58:36 UTC
Yoanna Antonio gefiel dieses Kunstwerk 2012-03-24 05:38:49 UTC
Renée König gefiel dieses Kunstwerk 2012-12-26 21:13:48 UTC
Mevlija Huszar gefiel dieses Kunstwerk 2013-04-25 19:14:03 UTC
Susanna Astikainen gefiel dieses Kunstwerk 2013-08-29 21:42:22 UTC
Gabriela Simut gefiel dieses Kunstwerk 2013-12-10 19:26:56 UTC
maniqqq gefiel dieses Kunstwerk 2014-04-10 06:40:13 UTC

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