{"id":1227,"date":"2008-11-26T13:53:11","date_gmt":"2008-11-26T18:53:11","guid":{"rendered":"https:\/\/www.kabt.org\/?p=1227"},"modified":"2008-11-26T13:53:11","modified_gmt":"2008-11-26T18:53:11","slug":"perspectives-on-trees","status":"publish","type":"post","link":"https:\/\/www.kabt.org\/?p=1227","title":{"rendered":"Perspectives on Trees"},"content":{"rendered":"<p style=\"center;\"><a href=\"https:\/\/www.kabt.org\/wp-content\/uploads\/2008\/11\/forest_540.jpg\"><img decoding=\"async\" class=\"size-full wp-image-1229 aligncenter\" src=\"https:\/\/www.kabt.org\/wp-content\/uploads\/2008\/11\/forest_540.jpg\" alt=\"\" width=\"500\" height=\"334\" srcset=\"https:\/\/www.kabt.org\/wp-content\/uploads\/2008\/11\/forest_540.jpg 540w, https:\/\/www.kabt.org\/wp-content\/uploads\/2008\/11\/forest_540-300x200.jpg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p>A few weeks ago, my fall semester field biology students and I began our studies of forest ecology.\u00a0 Luckily before the majority of our local trees demonstrated their deciduous nature, we were able to\u00a0travel into the field and collect quite a diversity of leaves for identificaiton.\u00a0 More recently, we have turned our attention to dendrochronology\u00a0methods and using the point-quarter-method\u00a0for determing tree density, dominance, and frequency.\u00a0<\/p>\n<p>Normally, I wouldn&#8217;t have considered sharing such information but during the past week,\u00a0two NPR broadcasts have inspired me to do so.\u00a0 More specifically,\u00a0the inspriation came from <a href=\"http:\/\/www.npr.org\/templates\/story\/story.php?storyId=5194672\" target=\"_blank\">Robert Kruwich<\/a>&#8216;s &#8220;<a href=\"http:\/\/www.npr.org\/templates\/story\/story.php?storyId=5500502\" target=\"_blank\">Krulwich on Science<\/a>&#8221; radio segments.\u00a0\u00a0Links to the specific\u00a0radio\u00a0segment\u00a0follow,\u00a0with a few related class resources that I have used while teaching about\u00a0dendrochronology and\u00a0forest\u00a0density.<\/p>\n<p><!--more-->\u00a0<strong>Dendrochronolgy Broadcast &amp; Resources<\/strong><\/p>\n<ul>\n<li><strong>Krulwich On Science &#8211;<\/strong> <a href=\"http:\/\/www.npr.org\/templates\/story\/story.php?storyId=96750869\" target=\"_blank\"><strong>How A-Bomb Testing Changed our Trees<\/strong><\/a><br \/>\nThis 4 minute audio takes\u00a0us back in\u00a0time to the 1950&#8217;s and discusses how the radiation produced by our atmospheric testing of atomic bombs\u00a0caused an increase in atmospheric C14\u00a0and, in turn, a spike in C14 found in plants of this age (chemical\u00a0tree ring).\u00a0<\/li>\n<li><strong>Brain McCarthy&#8217;s <\/strong><a href=\"http:\/\/www.plantbio.ohiou.edu\/dendro\/\" target=\"_blank\"><strong>Introduction to Dendrochronology<\/strong><\/a> at Ohio University<br \/>\nI have used this site to introduce my students to the basic botany associated with the production of tree rings, as well as the field and lab methods associated with collecting and analyzing tree\u00a0cores (at the moment his botany primer link is broken).<\/li>\n<li><strong>Paul Sheppard&#8217;s <\/strong><a href=\"http:\/\/tree.ltrr.arizona.edu\/skeletonplot\/introcrossdate.htm\" target=\"_blank\"><strong>Crossdating Tree Rings using Skeleton Plotting<\/strong><\/a> at the Univ. of Arizona<br \/>\nI have also used this site to introduce my students to some of the basic botany associated with the production of tree rings.\u00a0 The <strong><em>highlight of this site<\/em><\/strong> is\u00a0an interactive\u00a0Java applet.\u00a0 In this activity\u00a0you receive a virtual tree core (as seen below).\u00a0 Next, you follow the methods\u00a0covered at the site to create a skeleton plot.\u00a0 Finally, you use a master reference chronology (at the bottom of the screen shot) to determine the dates associated with your tree core.<\/li>\n<\/ul>\n<p style=\"center;\"><a href=\"https:\/\/www.kabt.org\/wp-content\/uploads\/2008\/11\/skeletonplot.jpg\"><img decoding=\"async\" class=\"size-full wp-image-1237 aligncenter\" src=\"https:\/\/www.kabt.org\/wp-content\/uploads\/2008\/11\/skeletonplot.jpg\" alt=\"\" width=\"500\" height=\"341\" srcset=\"https:\/\/www.kabt.org\/wp-content\/uploads\/2008\/11\/skeletonplot.jpg 772w, https:\/\/www.kabt.org\/wp-content\/uploads\/2008\/11\/skeletonplot-300x205.jpg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p><strong>Forest Density Broadcast &amp; Resources<\/strong><\/p>\n<ul>\n<li><strong>Krulwich On Science &#8211; <\/strong><a href=\"http:\/\/www.npr.org\/templates\/story\/story.php?storyId=96758439\" target=\"_blank\"><strong>Going Out on a Limb with a Tree-Person Ratio<\/strong><\/a><br \/>\nIn this 5 minute audio sement we learn about recent research by Nalini Nadkarni of The Evergreen State College\u00a0to estimate the number of tree on Earth and her subsequent calculations to determine the number of trees per person.\u00a0 The segment further discusses our use of tree-based resources.<\/li>\n<li><strong>Using the Point Quarter Method &#8211;<br \/>\n<a href=\"http:\/\/www.bv229.k12.ks.us\/biophilia\/KABT\/FOREST%20ECOLOGY.doc\" target=\"_blank\">An Activity for Estimating Tree Density, Dominance, &amp; Frequency<\/a><br \/>\n<\/strong>Before taking my students outside to use the point-quarter method for determining tree density, dominance, and frequency, I usually have them do this simple paper activity that familiarized them with the protocol and the concepts of density, dominance, and frequency.<\/li>\n<\/ul>\n<p>Robert Krulwich&#8217;s &#8220;<a href=\"http:\/\/www.npr.org\/templates\/story\/story.php?storyId=5500502\" target=\"_blank\">Kulwich on Science<\/a>&#8221; radio segments are multifaceted productions.\u00a0 They are short enough to use as a nice\u00a0anticipatory set,\u00a0educate about\u00a0scientific research,\u00a0integrate\u00a0science and society, and are engaging and humorous to students and teachers alike.\u00a0<\/p>\n<p>So, whether or not you teach about trees and forest ecology, I would recommend that you listen in once in awhile.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A few weeks ago, my fall semester field biology students and I began our studies of forest ecology.\u00a0 Luckily before the majority of our local trees demonstrated their deciduous nature, we were able to\u00a0travel into the field and collect quite a diversity of leaves for identificaiton.\u00a0 More recently, we have turned our attention to dendrochronology\u00a0methods<br \/><a class=\"moretag\" href=\"https:\/\/www.kabt.org\/?p=1227\">+ Read More<\/a><\/p>\n","protected":false},"author":30,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_s2mail":"","_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[36,8],"tags":[43,82,81,80,84,83,85],"class_list":["post-1227","post","type-post","status-publish","format-standard","hentry","category-nature","category-teaching-resources","tag-ecology","tag-forest","tag-krulwich","tag-npr","tag-point-quarter-method","tag-radio","tag-tree-density"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.kabt.org\/index.php?rest_route=\/wp\/v2\/posts\/1227","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kabt.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kabt.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kabt.org\/index.php?rest_route=\/wp\/v2\/users\/30"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kabt.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1227"}],"version-history":[{"count":14,"href":"https:\/\/www.kabt.org\/index.php?rest_route=\/wp\/v2\/posts\/1227\/revisions"}],"predecessor-version":[{"id":1250,"href":"https:\/\/www.kabt.org\/index.php?rest_route=\/wp\/v2\/posts\/1227\/revisions\/1250"}],"wp:attachment":[{"href":"https:\/\/www.kabt.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kabt.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kabt.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}