Download or read book Allozymic Variation of Pocket Gophers of the Genus Geomys in West central Texas written by Marcia Ann Revelez and published by . This book was released on 1999 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distributional and Systematic Analysis of Pocket Gophers genus Geomys in West central Texas written by Marcia Ann Revelez and published by . This book was released on 1999 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationships of Pocket Gophers of the Genus Geomys from the Central and Northern Great Plains written by Lawrence R. Heaney and published by . This book was released on 1983 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relationships among lice of the genus Geomydoecus as one of several bases for classification of pocket gophers in the genus Geomys.
Download or read book Distribution and Variation of Pocket Gophers Genus Geomys in the Southwestern United States written by William B. Davis and published by . This book was released on 1940 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationships of Pocket Gophers of the Genus Geomys From the Central and Northern Great Plains Classic Reprint written by Lawrence R. Heaney and published by . This book was released on 2015-08-05 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Relationships of Pocket Gophers, of the Genus Geomys From the Central and Northern Great Plains Relationships of Pocket Gophers, of the Genus Geomys from the Central and Northern Great Plains was written by Lawrence R. Heaney and Robert M.Timm in 1983. This is a 66 page book, containing 32751 words and 23 pictures. Search Inside is enabled for this title. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Variation in the Chromosomes of Five Species of Pocket Gophers in the Genus Geomys as Detected by Differential Staining and the Phylogenetic Implications written by Michael John Smolen and published by . This book was released on 1992 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Identification of Pocket Gophers Genera Cratogeomys Geomys and Thomomys in Texas and Surrounding Areas written by Robert D. Bradley and published by . This book was released on 2023-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae The Original Classic Edition written by Robert J. Russell and published by Emereo Publishing. This book was released on 2013-03-18 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finally available, a high quality book of the original classic edition of Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae. It was previously published by other bona fide publishers, and is now, after many years, back in print. This is a new and freshly published edition of this culturally important work by Robert J. Russell, which is now, at last, again available to you. Get the PDF and EPUB NOW as well. Included in your purchase you have Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae in EPUB AND PDF format to read on any tablet, eReader, desktop, laptop or smartphone simultaneous - Get it NOW. Enjoy this classic work today. These selected paragraphs distill the contents and give you a quick look inside Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae: Look inside the book: The Hay Springs local fauna is considered to 493 have been deposited in late Kansan glaciation or in early Yarmouth interglacial by Shultz and Tanner (op. cit.:69), or of Irvingtonian age; however, Hibbard (1958:25) regarded the beds containing this fauna as Illinoian (thus post-Irvingtonian in age), and equivalent in age to the Berends local fauna of Oklahoma and the Butler Springs and Mt. ...Schultz, 1938:206); Rancho La Brea, Los Angeles County, California (Dice, 1925:125—specimens described as a new subspecies, T. b. occipitalis); Papago Springs Cave, Santa Cruz County, Arizona (Skinner, 1942:150 and 158—probably bottae, but possibly umbrinus on the assumption that the two are specifically instead of subspecifically distinct); Isleta Cave, Bernalillo County, New Mexico (Harris and Findley, 1964:115—some of these fossils may be post-Wisconsin in age); Potter Creek Cave and Samwel Cave, Shasta County, California (Sinclair, 1905:146—identified as T. leucodon, now a subspecies of T. bottae; also see Hay, 1927:214-215). ...Geomys bursarius has been reported from Wisconsin fossil deposits of the Great Plains and adjacent areas as follows: Jones local fauna, Meade County, Kansas (Hibbard and Taylor, 1960:64-66); Two Creeks Forest beds of the third interstadial soils formed between Cary and Mankato glaciations, late Wisconsin (Schultz et al., 1951:8 and table 1); Cita Canyon local fauna in the northern part of the Panhandle of Texas (Johnson and Savage, 1955:39); Howard Ranch local fauna of Hardeman County in northwestern Texas (Dalquest, 1965:70); Quitaque local fauna of Motley County, Texas (Dalquest, 1964:501); Clear Creek local fauna of Denton County in north-central Texas (Slaughter and Ritchie, 1963:120); Ben Franklin local fauna, of late Wisconsin beds along the North Sulphur River in Delta County, NE Texas (Slaughter and Hoover, 1963:137); Bulverde Cave (Hay, 1920:140; 1924:247) and Friesenhahn Cave (Tamsitt, 1957:321), both in Bexar County, south-central Texas; Alton, Illinois (Hay, 1923:338-339); Wisconsin drift of Illinois, without mention of specific locality (Bader and Techter, 1959:172); Wisconsin drift of southwestern Wisconsin and northeastern Iowa (Hay, op. cit.:343); Wisconsin drift near Galena, Illinois, and mouth of Platte River in eastern Nebraska (Leidy, 1869:406).
Download or read book Relationships of Pocket Gophers of the Genus Geomys from the Central and Northern Great Plains by Lawrence R Heany and Robert M Timm written by Lawrence R. Heaney and published by . This book was released on 1970 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Taxonomic Study of the Pocket Gophers Genus Geomys of the Central United States written by Charles Albert McLaughlin and published by . This book was released on 1958 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Using Molecular Markers to Assess Species Distribution Contact Zones and Hybridization in Oklahoma Pocket Gophers geomys written by Christina N. Coffman and published by . This book was released on 2018 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Speciation is the evolutionary process which leads to the formation of new and distinct species. Understanding the mechanisms involved in the speciation process is imperative for understanding evolutionary biology and species diversity. A promising approach to understanding the mechanisms involved in speciation is the study of hybrid zones where genetic exchange between distinct species can produce mixed or recombinant genotypes. Analysis of hybrid zones can provide insight into the processes that isolate groups from each other. Cryptic species are those that are difficult to identify based on morphological characteristics, but are reproductively or genetically distinct. A less restrictive, but similar term, is species complex. A species complex contains two or more closely related species with similar morphologies that have species boundaries that are difficult to define. Both of these terms can be applied to the genus Geomys (pocket gophers). Because of the morphological similarities between species in this genus, molecular analyses often are necessary for species identification. Currently, two species of Geomys are known to occur in Oklahoma. Geomys bursarius (plains pocket gopher) occurs in western Oklahoma, whereas G. breviceps (Baird's pocket gopher) occurs in eastern Oklahoma. There has been limited molecular research done on Oklahoma Geomys, which has led to a lack of understanding of species boundaries throughout the state. Hybridization between G. bursarius and G. breviceps has been reported to occur in Oklahoma where the two species come into contact, which can further complicate species identification. Additionally, the identification of pocket gophers in the Oklahoma panhandle is in question. The panhandle populations are presumed to belong to G. bursarius, but it has been hypothesized that a third species, G. jugossicularis (Hall's pocket gopher), may reside there as well. The goals of my research were to utilize molecular markers to 1) determine if G. jugossicularis occurs in the Oklahoma panhandle, 2) evaluate the boundary line between G. bursarius and G. breviceps in central Oklahoma, and 3) determine the location of contact zones in the state and assess whether hybrid individuals occur within these zones. The complete mitochondrial cytochrome-b gene was used to aid in species identification. Microsatellite markers were used to identify unique genetic clusters in Oklahoma, address the possibility of hybridization in Oklahoma, as well as evaluate genetic diversity within and between species. Geomys jugossicularis was identified in the Oklahoma panhandle (Beaver and Cimarron Counties) as well as in the Texas panhandle in Dallam and Hartley Counties. Four admixed individuals between G. jugossicularis and G. bursarius were identified in Beaver and Cimarron Counties. The boundary line between these two species most likely meanders in and out of the Oklahoma and Texas panhandles, although additional research is needed to determine the extent and location of the contact zone between these two species in this region. The boundary line between G. bursarius and G. breviceps was found in central Oklahoma and is similar to that proposed based on morphological data. It is likely that multiple contact zones exist along the boundary. Contact zones were evaluated in Tulsa and Cleveland Counties and it was determined that contact zones may be wider than originally suggested. Four admixed individuals were identified in Seminole, Logan, and Marshall Counties. Based on findings from this project and previous research, the tension zone model is likely the best fit model to describe the maintenance of hybrid zones in central Oklahoma. The overall goals of this research were to gain a better understanding of species boundaries, including the locations of contact zones; hybridization; and genetic diversity within and among Oklahoma pocket gophers. My research allowed an opportunity to advance the growing knowledge of cryptic species and the occurrence of hybridization between species. Most importantly, my project has contributed to a broader understanding of Geomys in Oklahoma, which will allow for future research opportunities. Future research will focus on characterizing individuals using the whole genome approach as well as studying hybrid zones in more detail. With use of the whole genome approach, future research will be able to determine which regions of the genome are under selection in each hybrid zone. By determining common characteristics among zones, there will be a better understanding of the mechanisms necessary for speciation.
Download or read book Evolution of 12S RRNA Gene in Pocket Gophers Genus Geomys written by Ted W. Jolley and published by . This book was released on 1997 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Texas Natural History written by David J. Schmidly and published by Texas Tech University Press. This book was released on 2002 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural history - Texas, table of contents, index.
Download or read book Mammal Species of the World written by Don E. Wilson and published by JHU Press. This book was released on 2005 with total page 2201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This indispensable reference work belongs in public and academic libraries throughout the world and on the shelf of every biologist who works with mammals.
Download or read book North American Rodents written by David J. Hafner and published by IUCN. This book was released on 1998 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive treatment of North American rodents of conservation concern. This action plan summarizes the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts. It is hoped that the survey provided in this action plan will serve as a common ground for all these parties in drawing up conservation strategies for rodents.
Download or read book Mammals of South America Volume 2 written by James L. Patton and published by University of Chicago Press. This book was released on 2015-03-09 with total page 1363 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second installment in a planned three-volume series, this book provides the first substantive review of South American rodents published in over fifty years. Increases in the reach of field research and the variety of field survey methods, the introduction of bioinformatics, and the explosion of molecular-based genetic methodologies have all contributed to the revision of many phylogenetic relationships and to a doubling of the recognized diversity of South American rodents. The largest and most diverse mammalian order on Earth—and an increasingly threatened one—Rodentia is also of great ecological importance, and Rodents is both a timely and exhaustive reference on these ubiquitous creatures. From spiny mice and guinea pigs to the oversized capybara, this book covers all native rodents of South America, the continental islands of Trinidad and Tobago, and the Caribbean Netherlands off the Venezuelan coast. It includes identification keys and descriptions of all genera and species; comments on distribution; maps of localities; discussions of subspecies; and summaries of natural, taxonomic, and nomenclatural history. Rodents also contains a detailed list of cited literature and a separate gazetteer based on confirmed identifications from museum vouchers and the published literature.
Download or read book Walker s Mammals of the World written by Ronald M. Nowak and published by . This book was released on 1999 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gives an historical account of the world's mammals since 3,000 B.C., and then provides detailed information about every mammal on earth, divided by genus.
