Earth Notes http://knau.org en Earth Notes: The Colorado Plateau’s Prehistoric Baby Boom http://knau.org/post/earth-notes-colorado-plateau-s-prehistoric-baby-boom <p>One of the enduring mysteries of the Colorado Plateau is why the area’s ancient Puebloan population dropped to almost zero in the late 13th century, after peaking at as many as 40,000 people just 30 years earlier.</p><p> Wed, 20 Aug 2014 11:59:00 +0000 Richard Mahler 51785 at http://knau.org Earth Notes: The Colorado Plateau’s Prehistoric Baby Boom Earth Notes: When Does Wildlife Need Rescuing? http://knau.org/post/earth-notes-when-does-wildlife-need-rescuing <p>When Bea Cooley and Brooks Hart headed down Oak Creek Canyon to do some birding last winter, they had no idea just how close their bird encounters would be.</p><p> Wed, 13 Aug 2014 12:01:00 +0000 Alexandra Murphy 51583 at http://knau.org Earth Notes: When Does Wildlife Need Rescuing? Earth Notes: Frogs on the Move http://knau.org/post/earth-notes-frogs-move <p>On the Colorado Plateau, life begins anew when the monsoon rains come — especially for native amphibians like the northern leopard frog. This beautiful, spotted, greenish-brown frog pays close attention to moisture, and starts to move on humid days and rainy nights.</p><p> Wed, 06 Aug 2014 12:00:00 +0000 Rose Houk 51136 at http://knau.org Earth Notes: Frogs on the Move Earth Notes: After the Slide Fire, a Rare Plant Grows Back http://knau.org/post/earth-notes-after-slide-fire-rare-plant-grows-back <p>Can a plant that grows in only three national forests in Arizona survive all that today’s changing environment can throw at it?&nbsp;</p><p> Wed, 30 Jul 2014 12:00:00 +0000 Rose Houk 50860 at http://knau.org Earth Notes: After the Slide Fire, a Rare Plant Grows Back Earth Notes: BAER Program Looks At Wildlife After Slide Fire http://knau.org/post/earth-notes-baer-program-looks-wildlife-after-slide-fire <p>Soon after the Slide Fire burned 22,000 acres in, and around, Oak Creek Canyon in northern Arizona, researchers from the Forest Service Burned Area Emergency Response - or BAER&nbsp;Program - took stock of its impact on sensitive wildlife species.</p><p> Wed, 23 Jul 2014 15:49:55 +0000 Alexandra Murphy 50579 at http://knau.org Earth Notes: BAER Program Looks At Wildlife After Slide Fire Earth Notes: The Slide Fire’s New Old Cabin http://knau.org/post/earth-notes-slide-fire-s-new-old-cabin <p>When intense wildfires burn through well-loved places like Oak Creek Canyon, the sense of loss is deep. But, sometimes wildfires offer gifts in the midst of destruction.</p><p> Wed, 16 Jul 2014 23:01:24 +0000 Elizabeth Blaker 50294 at http://knau.org Earth Notes: The Slide Fire’s New Old Cabin Earth Notes: The Slide Fire’s Mosaic of Impacts http://knau.org/post/earth-notes-slide-fire-s-mosaic-impacts <p>In late May of this year, wildfire swept through upper Oak Creek Canyon in northern Arizona. By the time firefighters contained it in early June, the Slide Fire had burned some 22,000 acres of chaparral, mixed conifers, and ponderosa pine forest.</p><p> Wed, 02 Jul 2014 23:07:50 +0000 Alexandra Murphy 49666 at http://knau.org Earth Notes: The Slide Fire’s Mosaic of Impacts Earth Notes: Helping Mexican Wolves Get a Good Start http://knau.org/post/earth-notes-helping-mexican-wolves-get-good-start <p>Foster parents help a lot of kids from difficult backgrounds in getting a better start in life. Now they’re also helping a rare species that’s been struggling to gain a foothold in the Southwestern wilds.</p><p> Wed, 25 Jun 2014 17:20:04 +0000 Peter Frederici 49296 at http://knau.org Earth Notes: Helping Mexican Wolves Get a Good Start Earth Notes: Watering Fields with the Sun http://knau.org/post/earth-notes-watering-fields-sun <p>The Verde Valley, watered by the Verde River, is named for the ultra-green cast it gives to central Arizona’s desert.</p><p> Wed, 18 Jun 2014 15:43:43 +0000 Rose Houk 48960 at http://knau.org Earth Notes: Watering Fields with the Sun Earth Notes: Shelter Dogs and Salamanders http://knau.org/post/earth-notes-shelter-dogs-and-salamanders <p>An unusual team of four-legged researchers is hard at work in the Jémez Mountains of New Mexico. They love to run, chase balls — and sniff out a rare salamander found nowhere else.</p><p> Wed, 11 Jun 2014 22:39:15 +0000 Richard Mahler 48662 at http://knau.org Earth Notes: Shelter Dogs and Salamanders