Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Botany

Brigham Young University

Articles 1 - 30 of 382

Full-Text Articles in Life Sciences

Reducing Food Scarcity: The Benefits Of Urban Farming, S.A. Claudell, Emilio Mejia Dec 2023

Reducing Food Scarcity: The Benefits Of Urban Farming, S.A. Claudell, Emilio Mejia

Journal of Nonprofit Innovation

Urban farming can enhance the lives of communities and help reduce food scarcity. This paper presents a conceptual prototype of an efficient urban farming community that can be scaled for a single apartment building or an entire community across all global geoeconomics regions, including densely populated cities and rural, developing towns and communities. When deployed in coordination with smart crop choices, local farm support, and efficient transportation then the result isn’t just sustainability, but also increasing fresh produce accessibility, optimizing nutritional value, eliminating the use of ‘forever chemicals’, reducing transportation costs, and fostering global environmental benefits.

Imagine Doris, who is …


Testing The Potential Of Novel Grain Crop Cultivation In Rural Malawi During The Dry Season Through Irrigation And Soil Modification, Jessica Truman Apr 2018

Testing The Potential Of Novel Grain Crop Cultivation In Rural Malawi During The Dry Season Through Irrigation And Soil Modification, Jessica Truman

Undergraduate Honors Theses

This research project studied the germination and growth rates of oat and quinoa crops in Mtalimanja, Malawi. This project was part of a larger effort by General Mills and Brigham Young University researchers to increase the diversity and nutrient content of crops in impoverished countries worldwide. It was conducted from May to August 2017 during Malawi’s dry season. Tetraploid oats and quinoa, both modified to increase the protein content of harvested grains, were planted under three different soil conditions: unamended soil, soil mixed with composted chicken litter, and soil with surface-applied granular fertilizer. The research plots were watered daily except …


Frémont Island: Great Salt Lake, Utah, Stanley L. Welsh, Dale Gardner, Steve Durtschi May 2016

Frémont Island: Great Salt Lake, Utah, Stanley L. Welsh, Dale Gardner, Steve Durtschi

Books by Faculty of the Monte L. Bean Life Science Museum

Abstract

This account is based mainly on two historical records of pioneering attempts that reached Frémont Island, i.e., Report of the Exploring Expeditions to the Rocky Mountains in the year 1842, and to Oregon and Northern California in the years 1843-‘44, by Brevet Captain J. C. Frémont of the Topographical Engineers Under the orders of Co. J. J. Abert, Chief of the Topographical Bureau. Printed by order of the Senate of the United States. Washington: Gales and Seaton Printers, 1845, and especially pages 151–159 of that report, as presented in narrative form in pages 43–47 of the John Charles …


Influential Herbal And Botanical Texts From The 16th Through 18th Centuries, Michael C. Goates Mar 2016

Influential Herbal And Botanical Texts From The 16th Through 18th Centuries, Michael C. Goates

Faculty Publications

Humans have always had an intimate and complex relationship with plants. Plants provide many of the basic necessities for survival, such as food, clothing, and shelter. Plants also play an important and rich part in human culture. This fascination with plants has led to detailed studies of their natural history as well as explorations into their unique and useful properties. Throughout recorded history, philosophers, herbalists, botanists, and others have captured their observations about plants. From the Middle Ages through the Early Modern Period, herbalists compiled these collective observations into large printed volumes, referred to as herbals. With the Scientific Revolution …


Using Detection Dogs And Rspf Models To Assess Habitat Suitability For Bears In Greater Yellowstone, Jon P. Beckmann, Lisette P. Waits, Aimee Hurt, Alice Whitelaw, Scott Bergen Dec 2015

Using Detection Dogs And Rspf Models To Assess Habitat Suitability For Bears In Greater Yellowstone, Jon P. Beckmann, Lisette P. Waits, Aimee Hurt, Alice Whitelaw, Scott Bergen

Western North American Naturalist

In the northern U.S. Rockies, including the Greater Yellowstone Ecosystem (GYE), connectivity is a concern because large carnivores have difficulties dispersing successfully between protected areas. One area of high conservation value because of its importance for connecting the GYE to wilderness areas of central Idaho is the Centennial Mountains and surrounding valleys (2500 km2) along the Idaho–Montana border just west of Yellowstone National Park. The current expansion of grizzly bears (Ursus arctos) and other large carnivore populations outside protected areas of Yellowstone National Park and Grand Teton National Park has placed a greater emphasis on potential linkage zones …


A Utah Flora, Fifth Edition, Revised, Stanley L. Welsh, N. Duane Atwood, Sherel Goodrich, Larry C. Higgins Jan 2015

A Utah Flora, Fifth Edition, Revised, Stanley L. Welsh, N. Duane Atwood, Sherel Goodrich, Larry C. Higgins

Books by Faculty of the Monte L. Bean Life Science Museum

Abstract

This is a revised version of a comprehensive treatment of the vascular flora of Utah. All new taxa and distributional records discovered since the publication of the second edition in 2003 are included.

Keys are provided to families, genera, species, and infraspecific taxa (when present). Taxa are described, ecological data is given, and geographical information is provided. County distribution in Utah is given for each species and infraspecific taxon. General geographical information is given for taxa that extend beyond the boundaries of Utah. Chromosome numbers are provided for each taxon, where that information was available in literature.

In the …


Mesa Verde Vegetal Survey, Stanley L. Welsh Jan 2015

Mesa Verde Vegetal Survey, Stanley L. Welsh

Books by Faculty of the Monte L. Bean Life Science Museum

Abstract

This write-up is mainly concerned with plant specimens recovered and examined from major prehistoric cliff dwellings being excavated during the Wetherill Mesa Project. It also includes anecdotes from the author’s experiences in Mesa Verde. An overall summary of the species identified is presented at the end of this work, including suggestions as to how plants may have been used based on modern Native American surveys.

Table of Contents

Preface

Prologue

Introduction

Wetherill Mesa

Climate

Collections

Identification

Modern Plant Assemblage

Contemporary Species Compliment

Archeological Plant Assemblage

Plant Species Recovering from the Major Ruins

Kinds of Plant Materials Recovered

Wood-worked Items …


Botanists In The Canyonlands Of The Colorado Plateau – 1950–1983 & Prior, Stanley L. Welsh, Glen Moore Jan 2014

Botanists In The Canyonlands Of The Colorado Plateau – 1950–1983 & Prior, Stanley L. Welsh, Glen Moore

Books by Faculty of the Monte L. Bean Life Science Museum

Abstract

This paper provides an overview of botanical investigations in southeastern Utah, but is not so-restricted geographically. It grew out of the discovery of decades-old manuscripts on the flora of what became Canyonlands National Park in 1964, but from those typescript copies the coverage grew outward geographically and backward in time to the earliest inhabitants of what is today known as the Four Corners Region of the American Southwest. Reviewed is the account of utilization of the region and its natural resources by aboriginal inhabitants who were familiar with all of it. That early, and to an extent, continuous occupation …


Hanging Gardens Of The Colorado: Jewels In The Crown—Canyonlands Versus Zion Canyon, Stanley L. Welsh Jan 2014

Hanging Gardens Of The Colorado: Jewels In The Crown—Canyonlands Versus Zion Canyon, Stanley L. Welsh

Books by Faculty of the Monte L. Bean Life Science Museum

Abstract

Descriptions and types of Utah’s hanging gardens. This work includes a comparison of hanging gardens in Canyonlands versus Zion Canyon, as well as the plant and animal assemblages found there. Five types of gardens and alcoves are defined and the different types found in both national parks are described. Maps of hanging garden locations and extensive photographs of the flora and fauna are provided.

Table of Contents (abridged)

Prolog

Canyonlands Gardens

Geomorphology

Types of Gardens and Alcoves

Zion Canyon Gardens

Terrace-type Gardens

Plant Communities

Stream Courses

Geographic Affinities of Hanging Gardens

Restricted or Unusual Plants

Plant Succession

Appendix I: …


Mohave Desert—An Overview And Byu's Lytle Preserve, Stanley L. Welsh, Larry St. Clair Jan 2013

Mohave Desert—An Overview And Byu's Lytle Preserve, Stanley L. Welsh, Larry St. Clair

Books by Faculty of the Monte L. Bean Life Science Museum

Table of Contents

Introduction

The Mohahve or Mohave (Mojave) gets its Explorer and its Name (sort of?)

The Frémont Odyssey through the Mohahve

What of the Crossing of the Mohahve?

References

BYU's Lytle Preserve

Acknowledgments


Botanist In Death Valley, Stanley L. Welsh Jan 2012

Botanist In Death Valley, Stanley L. Welsh

Books by Faculty of the Monte L. Bean Life Science Museum

Abstract

This book details the author’s trips to Death Valley, along with general ecological information about the region. Explorations by other natural historians are also recounted. Death Valley and its surrounding mountain ranges are stark and appear to lack vegetative cover, but that appearance is deceiving. The ranges and valley support a great diversity of living things, both plants and animals. Pages 10–17 contain photographs of various landscapes. Pages 18–20 list the plant species collected in Death Valley, 1970–1983. Voucher specimens are available for study at Stanley L. Welsh Herbarium, Brigham Young University.



Index Welshensis (Names, Types, Nomenclature, Bibliography), Stanley L. Welsh Jan 2012

Index Welshensis (Names, Types, Nomenclature, Bibliography), Stanley L. Welsh

Books by Faculty of the Monte L. Bean Life Science Museum

Included in this paper are the citations of new taxa, type specimens, nomenclatural proposals, and photos of selected taxa named by S.L. Welsh, or in concert with others, especially N.D. Atwood, Sherel Goodrich, Larry Charles Higgins, Elizabeth Chase Neese, and Kay Hugie Thorne.

Table of Contents

Abstract

Introduction

Names of collectors or co-collectors of type specimens, and those for whom new taxa were named, or those who served as co-authors

Country and/or state of origin of specimens

Neotype selected

Lectotype designated

New Taxa from Utah

New Taxa, Other States

Types of New Taxa – Utah

Types of New Taxa – …


Journals Of Travels, Stanley L. Welsh Jan 2010

Journals Of Travels, Stanley L. Welsh

Books by Faculty of the Monte L. Bean Life Science Museum

Abstract

It is unfortunate that journals were not kept routinely for all of my [Stanley L. Welsh] expeditions that resulted in collections of plants that formed the bases for publications over the years. Only the record books and the specimens document most of the trips, and they are without detail of the events leading up to them or of those that transpired on them. The journals reproduced here show good intentions, which unfortunately were not fulfilled subsequently. The early field trips from Iowa State, accompanied by Dennis Anderson set the tone for later trips to Alaska, in 1965, 1966, 1968, …


Water In Beaver Dam Wash And Lytle Preserve, Stanley L. Welsh Feb 2007

Water In Beaver Dam Wash And Lytle Preserve, Stanley L. Welsh

Books by Faculty of the Monte L. Bean Life Science Museum

This short work is derived from a manuscript prepared for presentation in a water adjudication hearing, following a proposal to pipe water from wells in Beaver Dam Wash for transfer across state lines to be used for culinary and other purposes in Mesquite, Nevada. The Wash is estimated to yield 2000 acre feet of water annually, mostly as subsurface flow, at the Arizona line. About a third of that amount is already appropriated by users along the Wash in Utah, but there are applications pending for more than 100,000 acre feet in Utah. Thus, the Wash is already oversubscribed by …


North American Species Of Astragalus Linnaeus (Leguminosae): A Taxonomic Revision, Stanley L. Welsh Jan 2007

North American Species Of Astragalus Linnaeus (Leguminosae): A Taxonomic Revision, Stanley L. Welsh

Books by Faculty of the Monte L. Bean Life Science Museum

Abstract

This summary revision of the species of Astragalus in North America, north of Mexico, was initially prepared for inclusion in the Flora North America Project. That publication has been postponed indefinitely, and this paper is being presented now to allow those students of the genus with an updated manuscript to review, and to use prior to appearance of the Flora North America treatment. It differs from the Flora North America format in having bibliographic citations to the synonyms, and the type specimens are cited. The present work treats 354 species; 198 varieties; 552 total taxa. Should the 4 7 …


North American Species Of Atriplex Linnaeus (Chenopodiaceae): A Taxonomic Revision, Stanley L. Welsh Dec 2003

North American Species Of Atriplex Linnaeus (Chenopodiaceae): A Taxonomic Revision, Stanley L. Welsh

Books by Faculty of the Monte L. Bean Life Science Museum

All North American species of the chenopodiaceous genus Atriplex known to occur, either through introductions or as indigenous plants, are treated in this paper. The genus is described, keys are provided to the species and infraspecific taxa, and species and infraspecific taxa are described and furnished with discussions. Chromosome numbers (x=9) are recorded for many of the taxa. Distributions are outlined, and maps are provided that show the distribution of each taxon. Arrangement is phylogenetic, with sections and subsections noted, briefly described and discussed. Treated are some 62 species, and a total of 93 taxa included varieties. Lectotypes are selected …


Revision Of North American Species Of Oxytropis De Candolle (Leguminosae), Stanley L. Welsh Jan 2001

Revision Of North American Species Of Oxytropis De Candolle (Leguminosae), Stanley L. Welsh

Books by Faculty of the Monte L. Bean Life Science Museum

This paper treats 22 species (57 taxa), including one introduced species, that are known to occur within the genus Oxytropis in North America. The genus is described, a key to the species is provided, type information is furnished for each species and for most of the included synonyms, all species are described, and there are keys to infraspecific taxa, distribution maps are presented, and habitat information is given. Illustrations are provided for most of the taxa treated.

Table of Contents

Abstract

Dedication

Introduction

Taxonomic Treatment

Oxytropis de Candolle

  1. O. riparia
  2. O. deflexa
  3. O. mertensiana
  4. O. scammaniana
  5. O. podocarpa
  6. O. kokrinesis …


A Color Guidebook To Common Rocky Mountain Lichens, Larry L. St. Clair Jan 1999

A Color Guidebook To Common Rocky Mountain Lichens, Larry L. St. Clair

Books by Faculty of the Monte L. Bean Life Science Museum

This guidebook provides information about common lichens from the northern Rocky Mountains south into the Great Basin, Colorado Plateau, and the Sky Island Mountains of southeastern Arizona and southwestern New Mexico.

Table of Contents

Dedication

Acknowledgments

Introduction

  • Lichens as symbiotic systems
  • Morphology
  • Reproduction
  • Physiology and growth
  • Secondary chemistry
  • Ecology

Lichens as Biomonitors of Air Quality

  • Overview
  • Lichen sensitivity to air pollutants
  • Methods of evaluating air pollution impact on lichens

Lichen Systematics

  • Classification of lichens
  • Essential tools for identifying lichens
  • Collection and curation of lichen specimens
  • Dichotomous keys to common Rocky Mountain lichens

Common Rocky Mountain Lichens (Color photographs, descriptive information, …


Bird Use Of Riparian Vegetation Along The Truckee River, Califonia And Nevada, Suellen Lynn, Michael L. Morrison, Amy J. Kuenzi, Jennifer C. C. Neale, Benjamin N. Sacks, Robin Hamlin, Linnea S. Hall Oct 1998

Bird Use Of Riparian Vegetation Along The Truckee River, Califonia And Nevada, Suellen Lynn, Michael L. Morrison, Amy J. Kuenzi, Jennifer C. C. Neale, Benjamin N. Sacks, Robin Hamlin, Linnea S. Hall

Great Basin Naturalist

The Truckee River in California and Nevada is subject to diverse water regimes and a corresponding variety of flow rates. Original riparian vegetation has been altered by these variable flow rates and by a variety of human uses resulting in loss of native riparian vegetation from its historic extent. We conducted bird surveys along the Truckee River during spring 1993 to (1) determine relationships between birds and the present vegetation; (2) determine the importance of different vegetation types to sensitive bird species that have declined recently in the western United States due to competition from exotic plant species, cowbird ( …


Gap Analysis Of The Vegetation Of The Intermountain Semi-Desert Ecoregion, David M. Stoms, Frank W. Davis, Kenneth L. Driese, Kelly M. Cassidy, Michael P. Murray Jul 1998

Gap Analysis Of The Vegetation Of The Intermountain Semi-Desert Ecoregion, David M. Stoms, Frank W. Davis, Kenneth L. Driese, Kelly M. Cassidy, Michael P. Murray

Great Basin Naturalist

A conservation gap analysis was conducted for the Intermountain Semi-Desert ecoregion to assess the representation of land-cover types within areas managed primarily for biodiversity objectives. Mapped distributions of plant communities were summarized by land-management status categories. The total amount of land permanently protected in the ecoregion is


Winter Macroinvertebrate Communities In Two Montane Wyoming Streams, Christopher M. Pennuto, Frank Denoyelles Jr., Mark A. Conrad, Frank A. Vertucci, Sharon L. Dewey Jul 1998

Winter Macroinvertebrate Communities In Two Montane Wyoming Streams, Christopher M. Pennuto, Frank Denoyelles Jr., Mark A. Conrad, Frank A. Vertucci, Sharon L. Dewey

Great Basin Naturalist

Macroinvertebrate communities were examined on 4 winter dates over a 4-yr period in 2 high-altitude Rocky Mountain streams to document overwintering assemblages potentially experiencing spring acid pulses. Taxa richness values were comparable to other published lists for alpine and montane stream systems despite the fact that most literature reflected summer collections. Mean benthic density ranged from 1406 to 19,734 organisms/m2, and drift rates ranged from 0 to 1740 organisms/100 m3. Benthic collections showed higher taxa richness than drift collections while the Ephemeroptera and Plecoptera occurred in greater proportions in drift than in benthos. The Nemouridae (Plecoptera), …


Randomly Amplified Polymorphic Dna Analysis (Rapd) Of Artemisia Subgenus Tridentatae Species And Hybrids, E. Durant Mcarthur, Joann Mudge, Renée Van Buren, W. Ralph Andersen, Stewart C. Sanderson, David G. Babbel Jan 1998

Randomly Amplified Polymorphic Dna Analysis (Rapd) Of Artemisia Subgenus Tridentatae Species And Hybrids, E. Durant Mcarthur, Joann Mudge, Renée Van Buren, W. Ralph Andersen, Stewart C. Sanderson, David G. Babbel

Great Basin Naturalist

Species of Artemisia (subgenus Tridentatae) dominate much of western North America. The genetic variation that allows this broad ecological adaptation is facilitated by hybridization and polyploidization. Three separate studies were performed in this group using randomly amplified polymorphic DNA (RAPD). Fifty-seven 10-mer primers generated nearly 400 markers from genomic DNA obtained from leaf tissue. These studies were (1) a measure of the variability of plants within and between populations and between subspecies using 5 A. tridentata ssp. wyomingensis populations, 2 A. cana ssp. cana populations, and 1 A. cana ssp. viscidula population; (2) an examination of the hypothesis that …


Density, Distribution, And Habitat Of Flammulated Owls In Idaho, Craig Groves, Terry Frederick, Glenn Frederick, Eric Atkinson, Melonie Atkinson, Jay Shepherd, Gregg Servheen May 1997

Density, Distribution, And Habitat Of Flammulated Owls In Idaho, Craig Groves, Terry Frederick, Glenn Frederick, Eric Atkinson, Melonie Atkinson, Jay Shepherd, Gregg Servheen

Great Basin Naturalist

From 1990 to 1992 we surveyed for Flammulated Owls (Otus flammeolus) in 3 areas in Idaho: Salmon National Forest (SNF), Payette National Forest and adjacent Hells Canyon National Recreation Area (PNF-HCNRA), and Nez Perce National Forest (NPNF). We also collected and summarized information on all historic and modern records of Flammulated Owls in Idaho. Flammulated Owls were detected on 65% of 68 routes (2–16 km in length) surveyed at densities ranging from 0.04 to 1.25 singing males/40 ha. Owls were detected on survey routes as early as 10 May and as late as 23 July. Mean percent canopy …


Diplostomiasis In Native And Introduced Fishes From Yellowstone Lake, Wyoming, Victor H. Inchausty, Michael Foutz, Richard A. Heckmann, Claudete Ruas, Paulo Ruas May 1997

Diplostomiasis In Native And Introduced Fishes From Yellowstone Lake, Wyoming, Victor H. Inchausty, Michael Foutz, Richard A. Heckmann, Claudete Ruas, Paulo Ruas

Great Basin Naturalist

Totals of 101 native Yellowstone cutthroat (Oncorhynchus clarki bouvieri), 27 introduced lake trout (Salvelinus namaycush), and 40 introduced longnose sucker (Catostomus catostomus) from Yellowstone Lake, Wyoming, USA, were examined for eye flukes. Metacercariae of the trematode fluke Diplostomum were in vitreous humor and/or lens of 94% of Yellowstone cutthroat trout, 92% of lake trout, and 78% of longnose sucker. Longnose sucker had 7% prevalence of infection in both lens and vitreous humor of metacercariae, while Yellowstone cutthroat trout had 3% and lake trout 8%. Diplostomum spathaceum was in lens tissue of 5% of infected …


Natural Variability Of Vegetation, Soils, And Physiography In The Bristlecone Pine Forest Of The Rocky Mountains, Brigitte M. Ranne, William L. Baker, Tom Andrews, Michael G. Ryan Mar 1997

Natural Variability Of Vegetation, Soils, And Physiography In The Bristlecone Pine Forest Of The Rocky Mountains, Brigitte M. Ranne, William L. Baker, Tom Andrews, Michael G. Ryan

Great Basin Naturalist

Pinus aristata Engelm. forest vegetation in Colorado was studied to determine vegetation composition and the relationship between vegetation and environment. Species percent cover, tree size class, and environmental variables were recorded for 49 plots. Previously collected data for 4 plots from New Mexico were included. Environmental variables included latitude, longitude, elevation, slope, aspect, topographic position, parent material, percent rock cover, mean rock size, litter depth, estimated plot age class, and evidence of anthropogenic disturbance. Soils were analyzed for texture, depth, and percent carbon and nitrogen. Pinus aristata foliage was analyzed for percent nitrogen and phosphorus. Direct and indirect gradient analyses …


Helminths Of The Southwestern Toad, Bufo Microscaphus, Woodhouse's Toad, Bufo Woodhousii (Bufonidae), And Their Hybrids From Central Arizona, Stephen R. Goldberg, Charles R. Bursey, Keith B. Malmos, Brian K. Sullivan, Hay Cheam Nov 1996

Helminths Of The Southwestern Toad, Bufo Microscaphus, Woodhouse's Toad, Bufo Woodhousii (Bufonidae), And Their Hybrids From Central Arizona, Stephen R. Goldberg, Charles R. Bursey, Keith B. Malmos, Brian K. Sullivan, Hay Cheam

Great Basin Naturalist

The gastrointestinal tracts, lungs, and urinary bladders from 77 Bufo microscaphus, 61 Bufo woodhousii, and 8 of their hybrids were examined for helminths. One species of trematode (Glypthelmins quieta), 1 species of cestode (Distoichometra bufonis), and 5 species of nematodes (Aplectana incerta, A. itzocanensis, Rhabdias americanus, Physaloptera sp., and Physocephalus sp.) were found. The greatest prevalence (41%) and mean intensity (231.7) were recorded for Aplectana incerta in Bufo woodhousii. It appears hybrids harbor fewer parasites than either parent species.


Effects Of Douglas-Fir Foliage Age Class On Western Spruce Budworm Oviposition Choice And Larval Performance, Kimberly A. Dodds, Karen M. Clancy, Kathryn J. Leyva, David Greenberg, Peter W. Price Apr 1996

Effects Of Douglas-Fir Foliage Age Class On Western Spruce Budworm Oviposition Choice And Larval Performance, Kimberly A. Dodds, Karen M. Clancy, Kathryn J. Leyva, David Greenberg, Peter W. Price

Great Basin Naturalist

The western spruce budworm (Choristoneura occidentalis Freeman) prefers to feed on flushing buds and current-year needles of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco). Budworm larvae will not typically consume older age classes of needles unless all current-year foliage is depleted. We tested the following null hypotheses: (1) budworm larvae can feed on foliage with a wide range of qualities (i.e., current 1-, 2-, or 3-year-old needles) without measurable effects on fitness; and (2) budworm adults do not show any oviposition preference linked to the age of the foliage they fed on as larvae. We used both laboratory and field …


Selecting Wilderness Areas To Conserve Utah's Biological Diversity, Diane W. Davidson, William D. Newmark, Jack W. Sites Jr., Dennis K. Shiozawa, Eric A. Rickart, Kimball T. Harper, Robert B. Keiter Apr 1996

Selecting Wilderness Areas To Conserve Utah's Biological Diversity, Diane W. Davidson, William D. Newmark, Jack W. Sites Jr., Dennis K. Shiozawa, Eric A. Rickart, Kimball T. Harper, Robert B. Keiter

Great Basin Naturalist

Congress is currently evaluating the wilderness status of Bureau of Land Management (BLM) public lands in Utah. Wilderness areas play many important roles, and one critical role is the conservation of biological diversity. We propose that objectives for conserving biodiversity on BLM lands in Utah be to (1) ensure the long-term population viability of native animal and plant species, (2) maintain the critical ecological and evolutionary processes upon which these species depend, and (3) preserve the full range of communities, successional stages, and environmental gradients. To achieve these objectives, wilderness areas should be selected so as to protect large, contiguous …


Oochoristica Scelopori (Cestoda: Linstowiidae) In A Grassland Population Of The Bunch Grass Lizard, Sceloporus Scalaris (Phrynosomatidae), From Arizona, Stephen R. Goldberg, Charles R. Bursey, Chris T. Mcallister, Hobart M. Smith, Quynh A. Truong Apr 1996

Oochoristica Scelopori (Cestoda: Linstowiidae) In A Grassland Population Of The Bunch Grass Lizard, Sceloporus Scalaris (Phrynosomatidae), From Arizona, Stephen R. Goldberg, Charles R. Bursey, Chris T. Mcallister, Hobart M. Smith, Quynh A. Truong

Great Basin Naturalist

No abstract provided.


On The Relative Importance Of Floral Color, Shape, And Nectar Rewards In Attracting Pollinators To Mimulus, Steven D. Sutherland, Robert K. Vickery Jr. Jun 1993

On The Relative Importance Of Floral Color, Shape, And Nectar Rewards In Attracting Pollinators To Mimulus, Steven D. Sutherland, Robert K. Vickery Jr.

Great Basin Naturalist

Pollinator preferences were observed for the six species of section Erythranthe of the genus Mimulus using greenhouse-grown plants placed in a meadow in the Red Butte Canyon Natural Area, Salt Lake County, Utah. The principal pollinators were hummingbirds and bumble bees. Hummingbirds preferred the species with the most reflexed tubular flowers regardless of color, whereas bumblebees preferred pink. lavender, or yellow flowers to red flowers regardless of shape. Results for the six species were confirmed by observations of F2 hybrid recombinant plants selected such that flower color could be held constant and flower shape varied and vice versa.