Oklahoma Native Plant Record最新文献_第6页

A Checklist of the Vascular Flora of the Mary K. Oxley Nature Center, Tulsa County, Oklahoma 俄克拉何马州塔尔萨县玛丽K.奥克斯利自然中心维管植物区系清单

Oklahoma Native Plant Record Pub Date : 2013-12-01 DOI: 10.22488/OKSTATE.17.100097

A. Buthod

引用次数: 2

Complete Volume 12 完整卷12

Oklahoma Native Plant Record Pub Date : 2013-01-22 DOI: 10.22488/OKSTATE.17.100087

Sheila A. Strawn

引用次数: 0

A Preliminary Pawnee Ethnobotany Checklist 波尼族人种植物学初步清单

Oklahoma Native Plant Record Pub Date : 2012-12-01 DOI: 10.22488/OKSTATE.17.100090

C. Ledford

引用次数: 0

Vascular Flora of Alabaster Caverns State Park, Cimarron Gypsum Hills, Woodward County,Oklahoma 俄克拉何马州伍德沃德县锡马隆石膏山雪花石洞穴州立公园的维管植物群

Oklahoma Native Plant Record Pub Date : 2012-12-01 DOI: 10.22488/OKSTATE.17.100091

G. Caddell, K. Rice

引用次数: 2

A COMPARISON OF THE COMPOSITION AND STRUCTURE OF TWO OAK FORESTS IN MARSHALL AND POTTAWATOMIE COUNTIES 马歇尔县和波塔瓦托米县两种栎林的组成和结构比较

Oklahoma Native Plant Record Pub Date : 2012-12-01 DOI: 10.22488/OKSTATE.17.100092

Bruce A. Smith

引用次数: 0

Critic's Choice Essay: Virtual Herbaria Come of Age 评论家选择文章:虚拟植物标本馆的成长

Oklahoma Native Plant Record Pub Date : 2012-12-01 DOI: 10.22488/10.22488/OKSTATE.17.100093

W. Elisens

引用次数: 0

Possible Mechanisms of the Exclusion of Johnson Grass by Tall Grass Prairies 高草草原排斥强生草的可能机制

Oklahoma Native Plant Record Pub Date : 2012-12-01 DOI: 10.22488/OKSTATE.17.100089

Marilyn A. Semtner

{"title":"Possible Mechanisms of the Exclusion of Johnson Grass by Tall Grass Prairies","authors":"Marilyn A. Semtner","doi":"10.22488/OKSTATE.17.100089","DOIUrl":"https://doi.org/10.22488/OKSTATE.17.100089","url":null,"abstract":"Historically, plant distribution typically has been studied with the purpose of learning why a species grows and survives where it does; but why a species does not survive in a particular habitat has rarely been studied, although it may be just as important. According to the US Department of Agriculture, Johnsongrass [ Sorghum halepense (L.) Pers.; formerly Johnson grass] is listed as an agricultural pest in most states south of the 42 nd parallel. Control of Johnsongrass in agricultural fields involves various labor intensive cultural, mechanical, and chemical means. Release of a bio-control agent has not been suitable for intensively cropped areas. An agriculturally important weed and prominent member of early stage secondary succession, Johnsongrass is not present in later stages of prairie succession. Various environmental factors (biotic and abiotic) that might be involved in restricting Johnsongrass survival were examined in this research. In two sites in Oklahoma, soil conditions were found to be more favorable for survival and growth of Johnsongrass in undisturbed prairie than in the disturbed areas in which Johnsongrass was found vigorously growing. However, even when its rhizomes were introduced into mature prairie, Johnsongrass did not thrive. In laboratory and field trials, presence of the living dominant prairie grasses or leachate from living or dead leaf blades seemed to influence growth and survival of Johnsongrass rhizomes. The prairie grasses, little bluestem [ Schizachyrium scoparium (Michx.) Nash] and Indian grass [ Sorghastrum nutans (L.) Nash], seem to play a similar allelopathic role in restricting the growth of Johnsongrass to outside of the prairies. Looking at this past study might lead to new methods for the future. (Semtner 2012)","PeriodicalId":32630,"journal":{"name":"Oklahoma Native Plant Record","volume":"12 1","pages":"4-32"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68758032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effects of Removal of Juniperus virginiana L. Trees and Litter from a Central Oklahoma Grassland 俄克拉何马州中部草地刺柏树木和凋落物的清除效果

Oklahoma Native Plant Record Pub Date : 2011-12-19 DOI: 10.22488/OKSTATE.17.100084

J. Linneman, M. S. Allen, M. Palmer

引用次数: 0

Schoenoplectus hallii, S. saximontanus, and the Putative S. hallii X S. saximontanus Hybrid: Observations from the Wichita Mountains Wildlife Refuge and the Fort Sill Military Reservation 2002 - 2010 Schoenolectus hallii、S.saximontanus和假定的S.hallii X S.saximuntanus杂交种：2002-2010年威奇托山脉野生动物保护区和希尔堡军事保护区的观测

Oklahoma Native Plant Record Pub Date : 2011-12-19 DOI: 10.22488/OKSTATE.17.100082

Marian Smith, P. Mckenzie

{"title":"Schoenoplectus hallii, S. saximontanus, and the Putative S. hallii X S. saximontanus Hybrid: Observations from the Wichita Mountains Wildlife Refuge and the Fort Sill Military Reservation 2002 - 2010","authors":"Marian Smith, P. Mckenzie","doi":"10.22488/OKSTATE.17.100082","DOIUrl":"https://doi.org/10.22488/OKSTATE.17.100082","url":null,"abstract":"Schoenoplectus hallii, S. saximontanus, and the putative S. hallii × S. saximontanus hybrid are obligate wetland sedges that occur in the sparsely vegetated margins of ponds, ditches or swales with fluctuating water levels. The species are amphicarpic and have easily identified differences between spikelet and basal achenes. We surveyed selected sites at the refuge in 2001, 2002, and 2007 – 2010, surveyed 4 sites on the Fort Sill Military Reservation in 2009 and 2010, and collected voucher specimens from all populations. Scanning Electron Microsope (SEM) photographs of spikelet and basal achenes indicate distinct morphological differences between species and the presence of “winged” ridges on S. saximontanus. Field observations indicated that populations at all sites vary in size and species distribution annually, and that both parental species appeared to be declining in number. We concluded that in populations where S. hallii and S. saximontanus co-occur, hybridization may be a threat to one or both parental species. The distribution of achenes by waterfowl and ungulates indicates that management to prevent establishment of mixed populations, and therefore hybridization, is not practical. We recommend that S. hallii be evaluated for federal listing under the Endangered Species Act, a range-wide assessment be completed for S. saximontanus, and that all sites with mixed populations should be examined for the presence of hybrids.","PeriodicalId":32630,"journal":{"name":"Oklahoma Native Plant Record","volume":"139 1","pages":"22-32"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68757706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

The Changing Forests of Central Oklahoma: A Look at the Composition of the Cross Timbers Prior to Euro-American Settlement, in the 1950's, and Today 俄克拉何马州中部的森林变化:在欧美人定居之前，在1950年代和今天的十字架木材组成的观察

Oklahoma Native Plant Record Pub Date : 2011-12-19 DOI: 10.22488/OKSTATE.17.100085

Richard E. Thomas, B. Hoagland

{"title":"The Changing Forests of Central Oklahoma: A Look at the Composition of the Cross Timbers Prior to Euro-American Settlement, in the 1950's, and Today","authors":"Richard E. Thomas, B. Hoagland","doi":"10.22488/OKSTATE.17.100085","DOIUrl":"https://doi.org/10.22488/OKSTATE.17.100085","url":null,"abstract":"Prior to Euro-American settlement, the Cross Timbers of the Southern Plains marked the edge of “civilization,” beyond which lay a prairie ecosystem ruled primarily by Plains Indian tribes. War, trade, and pasture for cattle brought an increased Euro-American presence by the middle of the 19th century. In the early 1870s a large portion of what was to become the state of Oklahoma was surveyed by the General Land Office (GLO). Although these surveys were not conducted for ecological purposes, they have provided information on pre-settlement vegetation that has been invaluable for researchers seeking to reconstruct the historical landscape. Perhaps the most beneficial information for historical ecologists and biogeographers comes from data on bearing trees recorded by GLO surveyors, which have given present-day researchers a good idea of the species composition of Cross Timbers forests during this time. When compared to modern studies of the Cross Timbers, it documents a change in species composition over time, believed to be the result of fire suppression and perhaps the beginning of a wetter climate cycle. In central Oklahoma, this has meant a shift from forests dominated by Quercus marilandica and Quercus stellata (with the former being more abundant) to forests containing an equal abundance of these two species, and an increase in Carya texana, Juniperus virginiana, and other mesophytic and invasive woody species.","PeriodicalId":32630,"journal":{"name":"Oklahoma Native Plant Record","volume":"11 1","pages":"61-74"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68757781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2