A Genetic Study of Wild Populations and Evolution A Genetic Study of Wild Populations and Evolution

<p class="MsoNormal" style="margin-bottom: .0001pt; line-height: normal; mso-layout-grid-align: none; text-autospace: none;"><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-ansi-language: EN-US;" lang="EN-US">The determination of the scientific basis of heredity within the last two decades and the verification of the principal conclusions in many different plants and animals has made possible the application of analytical methods in the study of variations in wild populations. As with the physical and chemical sciences, genetics has been enabled to make use of mathematics to compound (often theoretically) out of simple units, the genes, the complexity known as an organism, much in the same way as a chemist compounds molecules with atoms and the physicist compounds atoms with protons and electrons.</span></p><br> <p class="MsoNormal" style="margin-bottom: .0001pt; line-height: normal; mso-layout-grid-align: none; text-autospace: none;"><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-ansi-language: EN-US;" lang="EN-US">The determination of the scientific basis of heredity within the last two decades and the verification of the principal conclusions in many different plants and animals has made possible the application of analytical methods in the study of variations in wild populations. As with the physical and chemical sciences, genetics has been enabled to make use of mathematics to compound (often theoretically) out of simple units, the genes, the complexity known as an organism, much in the same way as a chemist compounds molecules with atoms and the physicist compounds atoms with protons and electrons.</span></p

HYBRIDIZATION AND SEASONAL SEGREGATION IN TWO RACES OF A BUTTERFLY OCCURRING TOGETHER IN TWO LOCALITIES

Volume: 85Start Page: 44End Page: 5

CYTOLOGICAL DEMONSTRATION OF THE HELICAL STRUCTURE OF GIANT CHROMOSOMES

Alverdes(1) as long ago as 1912 interpreted the bands of the giant chromosomes found by Balbiani(2) in Chironomus as the result of spiralization. Later, Kaufmann,(3) applying plant-chromosome techniques to Drosophila giant chromosomes, concluded that the discoid or discontinuous appearance of these chromosomes was an expression of inadequate technique and that a spiral structure was the more accurate. Nevertheless, the discontinuous structure appeared to fit genetic data more easily

The Distribution of Colias in the Equatorial Andes The Distribution of Colias in the Equatorial Andes

<p class="MsoNormal" style="margin-bottom: .0001pt; line-height: normal; mso-layout-grid-align: none; text-autospace: none;"><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-ansi-language: EN-US;" lang="EN-US">The Genus Colias of primarily yellow and orange Pierid butterflies, is largerly northern in distribution. Representatives are found from Europe across the great Eurasiatic land mass to Siberia and northern Japan from where they span the narrow water barrier separating America and occur throughout North America. In the Mediterranean region, representatives are found on both the European and the African shores of the sea and also are found south around the Sahara desert through the highlands of Ethiopia and the Sudan into the southern parts of that continent, being absent in the hotter</span><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US"> and more humid places.</span></p><br> <p class="MsoNormal" style="margin-bottom: .0001pt; line-height: normal; mso-layout-grid-align: none; text-autospace: none;"><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-ansi-language: EN-US;" lang="EN-US">The Genus Colias of primarily yellow and orange Pierid butterflies, is largerly northern in distribution. Representatives are found from Europe across the great Eurasiatic land mass to Siberia and northern Japan from where they span the narrow water barrier separating America and occur throughout North America. In the Mediterranean region, representatives are found on both the European and the African shores of the sea and also are found south around the Sahara desert through the highlands of Ethiopia and the Sudan into the southern parts of that continent, being absent in the hotter</span><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US"> and more humid places.</span></p

Comparisons of some Andean Butterfly Faunas Comparisons of some Andean Butterfly Faunas

<p class="MsoNormal" style="margin-bottom: .0001pt; line-height: normal; mso-layout-grid-align: none; text-autospace: none;"><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-ansi-language: EN-US;" lang="EN-US">Observations of the butterfly fauna at significant points along the top of the Andean mountain chain from near Venezuela in Colombia to central Ecuador in comparable ecologic niches has brought out some interesting facts concerning the sub-ecological prererences of the species and their mtercombination in building up the fauna</span><span style="font-size: 12.0pt; font-family: ";Arial";,";sans-serif";; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US"> of a particular region.</span></p><br> <p class="MsoNormal" style="margin-bottom: .0001pt; line-height: normal; mso-layout-grid-align: none; text-autospace: none;"><span style="font-size: 12.0pt; font-family: " lang="EN-US">Observations of the butterfly fauna at significant points along the top of the Andean mountain chain from near Venezuela in Colombia to central Ecuador in comparable ecologic niches has brought out some interesting facts concerning the sub-ecological prererences of the species and their mtercombination in building up the fauna</span><span style="font-size: 12.0pt; font-family: " lang="EN-US"> of a particular region.</span></p

Present and ice age life and distributions

Volume: 7Start Page: 31End Page: 3

Ecological color variation in some Argynnis of the western United States

Volume: 6Start Page: 197End Page: 19

Notes on some California Butterflies

Volume: 11Start Page: 190End Page: 19