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Articles 91 - 120 of 643
Full-Text Articles in Weed Science
Book Reviews: Force Of Nature: George Fell, Founder Of The Natural Areas Movement. Arthur Melville Pearson., James R. Herkert
Book Reviews: Force Of Nature: George Fell, Founder Of The Natural Areas Movement. Arthur Melville Pearson., James R. Herkert
The Prairie Naturalist
Arthur Melville Pearson’s Force of Nature is a book that tells two very interesting and intertwined stories. One is a story of how perseverance and determination can drive an individual to accomplish great things. And the other is a story of how the modern day natural areas movement came to be. Fortunately for those interested in conservation and natural areas protection, those two stories were combined in the life of George Fell (1916-1994). In Fell’s home state of Illinois, where his impact is widely known, his name is synonymous with conservation. In other places where his impact is less well …
A Short Narrative For Writing For The Prairie Naturalist, Christopher N. Jacques
A Short Narrative For Writing For The Prairie Naturalist, Christopher N. Jacques
The Prairie Naturalist
The abstract should be written upon completion of the paper. A well-written abstract is a single short (≤1 line/page of text), concise, and includes 1) an introductory sentence justifying why the study was conducted, 2) a statement of the principal objectives or hypotheses tested during the study, 3) a brief description of pertinent methods, 4) a summary of significant results, 5) a punchy conclusion, and 6) management implications (i.e., utility of results explaining how, when, where, and by whom data or interpretations can be applied; Krausman and Cox 2017). Keep in mind that abstracts are read more than authors than …
Roadside Integrated Vegetation Management Bmps: Right Tool For The Right Job, Cheryl Daniels, Davey Resource Group, Inc.
Roadside Integrated Vegetation Management Bmps: Right Tool For The Right Job, Cheryl Daniels, Davey Resource Group, Inc.
Purdue Road School
Based on a 3-year ODOT IVM research project, lessons learned and techniques for innovative and adaptive IVM for diverse midwestern landscapes will be presented that can increase Indiana DOTs’ efficiency and cost-effectiveness and simultaneously improve worker safety, foster safe highway use, improve roadside aesthetics, and promote environmental stewardship.
Gene Flow From Single And Stacked Herbicide-Resistant Rice (Oryza Sativa): Modeling Occurrence Of Multiple Herbicide-Resistant Weedy Rice, Joseph Dauer, Andrew Hulting, Dale Carlson, Luke Mankin, John Harden, Carol Mallory-Smith
Gene Flow From Single And Stacked Herbicide-Resistant Rice (Oryza Sativa): Modeling Occurrence Of Multiple Herbicide-Resistant Weedy Rice, Joseph Dauer, Andrew Hulting, Dale Carlson, Luke Mankin, John Harden, Carol Mallory-Smith
School of Natural Resources: Faculty Publications
Background: Provisia™ rice (PV), a non-genetically engineered (GE) quizalofop-resistant rice, will provide growers with an additional option for weed management to use in conjunction with Clearfield® rice (CL) production. Modeling compared the impact of stacking resistance traits versus single traits in rice on introgression of the resistance trait to weedy rice (also called red rice). Common weed management practices were applied to 2-, 3- and 4-year crop rotations, and resistant and multiple-resistant weedy rice seeds, seedlings and mature plants were tracked for 15 years.
Results: Two-year crop rotations resulted in resistant weedy rice after 2 years with abundant populations (exceeding …
Mob Vs. Rotational Grazing: Impact On Forage Use And Artemisia Absinthium, Heidi Reed, Alexander Smart, David E. Clay, Michelle Ohrtman, Sharon A. Clay
Mob Vs. Rotational Grazing: Impact On Forage Use And Artemisia Absinthium, Heidi Reed, Alexander Smart, David E. Clay, Michelle Ohrtman, Sharon A. Clay
Agronomy, Horticulture and Plant Science Faculty Publications
Short duration (≤24 h), high stocking density grazing systems (e.g., mob grazing) mimics historic prairie grazing patterns of American bison (Bison bison), and should minimize selective grazing. We compared mob [125 cow-calf pairs on either 0.65 ha for 12 h; or 1.3 ha for 24 h] vs. rotational [25 cow-calf pairs on 8.1 ha for 20 days starting in mid-May with or without 2,4-D application prior to grazing; and 15 days starting mid-April (no herbicide)] grazing systems based on forage utilization and impact to Artemisia absinthium (absinth wormwood) in a tall grass pasture of Eastern South Dakota. Grass …
Use Of An Alternative Natural Weed Suppressant: Effects Of Parboiled Rice Hull Mulch On The Growth Of Container Weeds, Amy R. Fields-Taylor, Vanessa Slinger-Friedman
Use Of An Alternative Natural Weed Suppressant: Effects Of Parboiled Rice Hull Mulch On The Growth Of Container Weeds, Amy R. Fields-Taylor, Vanessa Slinger-Friedman
The Kennesaw Journal of Undergraduate Research
The Chattahoochee Nature Center (CNC) is one of the leading educational centers in Georgia about the ecology of the Chattahoochee River. Due to lack of man power, keeping down the weeds in the CNC plant nursery is one of those tasks that often gets left undone. The nursery becomes overgrown with invasive weed species. Understandably, they must sometimes resort to the use of herbicides, such as Roundup®, to keep the hundreds of native and endangered species of plants housed at CNC from being choked out by invasive weeds. This study tests the ability to suppress weed growth by use of …
A Swift Guide To Butterflies Of North America, Second Edition., Ann B. Swengel
A Swift Guide To Butterflies Of North America, Second Edition., Ann B. Swengel
The Prairie Naturalist
As soon as I got my hands on A Swift Guide to Butterflies of North America, I immediately checked the species account for Aphrodite Fritillary (Speyeria aphrodite). The prairie version of this species can be sufficiently different from the typically illustrated nominate subspecies such that it must be specifically explained as being distinct. This book passed my first test—describing details that were not only essential for identifying this fritillary species but also for realizing how similar its underside can be to our prairie specialty, the stunning Regal Fritillary (S. idalia).
Much of my research on butterflies occurs in grasslands. For …
Avian Diversity, Abundance, And Nest Success Among Managed Prairies And Agricultural Plots In Oklahoma And Texas, Phillip J. Leonard, Douglas R. Wood, Wayne E. Meyer
Avian Diversity, Abundance, And Nest Success Among Managed Prairies And Agricultural Plots In Oklahoma And Texas, Phillip J. Leonard, Douglas R. Wood, Wayne E. Meyer
The Prairie Naturalist
Over the last 50 years, grassland birds experienced rapid declines due to habitat loss and degradation as a result of agricultural practices. Our objective was to document the diversity, abundance, and nest success of bird communities using managed prairie and agricultural plots at the Tishomingo National Wildlife Refuge (NWR) in southern Oklahoma and Hagerman NWR in northern Texas. From April 1 to July 15, 2013–2014, point count surveys, nest searches, nest monitoring, and vegetation sampling were conducted among three habitat treatments: managed prairie, unharvested wheat, and fallow agricultural plots. Species richness values for potential nesting species were higher in managed …
Severe Drought Impacts Female Pheasant Physiology In Southwest Nebraska, Jessica A. Laskowski, Gwen C. Bachman, Joseph J. Fontaine
Severe Drought Impacts Female Pheasant Physiology In Southwest Nebraska, Jessica A. Laskowski, Gwen C. Bachman, Joseph J. Fontaine
The Prairie Naturalist
In 2012, Nebraska experienced one of the worst droughts since the 1930s, accompanied by abnormally high temperatures. We studied the impacts of the 2012 summer drought on female ring-necked pheasant (Phasianus colchicus) body condition and baseline and stress-induced corticosterone concentrations (CORT). We hypothesized that drought conditions would reduce pheasant body condition, increase chronic stress resulting in elevated baseline CORT levels, and down-regulate pheasant stress response to acute stressors, resulting in reduced stress-induced CORT concentrations. In southwestern Nebraska, we captured female pheasants in 2012 (pre-drought) and 2013 (post-drought). Pheasants had poorer body condition after the drought. Although female CORT measures were …
Energy Sprawl Solutions, Nicola Koper
Energy Sprawl Solutions, Nicola Koper
The Prairie Naturalist
Energy sprawl affects all the major conservation issues of our age, from habitat loss and fragmentation to anthropogenic noise and climate change. As such, minimizing and solving its associated problems should be a key focus for conservation biologists. Kiesecker and Naugle provide an impressive and compact book that focusses on solving environmental and social problems likely to result from a transition from non- renewable to far less efficient renewable energy sources.
Energy Sprawl Solutions summarizes numerous relevant peer-reviewed academic papers, and outlines management and planning implications of each one, ultimately resolving these into fairly clear prescriptive recommendations for moving forward. …
Unique Nesting Behavior By Trumpeter Swans (Cygnus Buccinator), Heather M. Johnson, Michael Forsberg, Letitia Reichart, Mark P. Vrtiska
Unique Nesting Behavior By Trumpeter Swans (Cygnus Buccinator), Heather M. Johnson, Michael Forsberg, Letitia Reichart, Mark P. Vrtiska
The Prairie Naturalist
Nesting behavior by Trumpeter swans (Cygnus buccinator) has been well documented for most populations. Both sexes cooperate in nest construction, which takes 11–35 days to complete (Hansen et al. 1971, Cooper 1979). Nests generally range from 1.5–3.6 meters in diameter and 1.5 meters in height and are typically built on solid structures such as a muskrat (Ondatra zibethicus) house or an island (Hansen et al. 1971, Cooper 1979). However, we discovered an atypical Trumpeter swan nest built of cattail (Typha angustifolia L.) located on Vaughn Lake, in Cherry County, Nebraska on 13 May 2016.
We monitored the atypical nest by …
The Considerations Given To Determining Authorship, Christopher N. Jacques
The Considerations Given To Determining Authorship, Christopher N. Jacques
The Prairie Naturalist
Greetings GPNSS members! Over the past year, I have been asked by prospective authors and colleagues whether The Prairie Naturalist has criteria for authorship. Given that this issue continues to arise, it is comforting to know that I am not the only one who struggles with considerations given to determining authorship. I checked the current submission guidelines and found nothing specific, which in turn motivated me to explore what other journals such as the Journal of Wildlife Management, Proceedings of the National Academy of Sciences, and Ecology recommend to prospective authors (Merrill 2015). Much to my surprise, discussions of authorship …
One More Warbler: A Life With Birds., Laura Erickson
One More Warbler: A Life With Birds., Laura Erickson
The Prairie Naturalist
Imagine going on a Victor Emanuel Nature Tour, seated in the van next to Victor Emanuel himself. Between birding stops, this man who has seen over 6,000 species as a world-renowned conservationist and innovator in ecotourism regales you with stories. He starts with his “spark bird”: when he was eight years old, he was taken with the beauty of a pair of Northern Cardinals (Cardinalis cardinalis), and was hooked. Whenever people pile back into the van after a birding stop, he starts another story.
That’s how One More Warbler: A Life with Birds reads, as if Emanuel sat down with …
Field Discrimination Of Prairie Deer Mice And White-Footed Mice Using Morphological Characteristics, Jacob L. Berl, Kelton M. Verble, Elizabeth A. Flaherty, Robert K.S. Swihart
Field Discrimination Of Prairie Deer Mice And White-Footed Mice Using Morphological Characteristics, Jacob L. Berl, Kelton M. Verble, Elizabeth A. Flaherty, Robert K.S. Swihart
The Prairie Naturalist
Field discrimination of prairie deer mice (Peromyscus maniculatus bairdii) and white-footed mice (P. leucopus noveboracensis) can be difficult throughout much of the central United States where they co-occur. We live-trapped prairie deer mice and white-footed mice within forested and row-crop habitats in central Indiana and used multiplex PCR with species-specific primers to positively determine species identification. We collected a suite of commonly measured external morphological traits (body weight and lengths of ear, hindfoot, tail, and body) from each captured animal. Individuals were assigned to species based on analysis of DNA; discriminant function analysis was used to …
Weed Establishment And Persistence After Water Pipeline Installation And Reclamation In The Mixed Grass Prairie Of Western North Dakota, Erin K. Espeland, Lora B. Perkins
Weed Establishment And Persistence After Water Pipeline Installation And Reclamation In The Mixed Grass Prairie Of Western North Dakota, Erin K. Espeland, Lora B. Perkins
Natural Resource Management Faculty Publications
Weeds in reclamations interfere with success by: 1) competing with desirable species seeded during revegetation; 2) preventing recolonization of reclamations by native species; and 3) reducing the integrity of landscapes by expanding from reclamations into adjacent, intact areas. In the Bakken oilfield of western North Dakota, dispersed reclamation activity and increased traffic may provide many opportunities for weeds to spread. To determine the potential for disturbance and reclamation to increase resident weed populations and introduce new weed species, we tracked twenty-one weed (non-native/ruderal/invasive) species over a four-year period after the installation of a 1.8 km livestock water pipeline and subsequent …
The Prairie Naturalist: The Journal Of The Great Plains Natural Science Society
The Prairie Naturalist: The Journal Of The Great Plains Natural Science Society
The Prairie Naturalist
TABLE OF CONTENTS
45 EDITOR’S NOTE
RESEARCH ARTICLES
48 Avian Diversity, Abundance, and Nest Success among Managed Prairies and Agricultural Plots in Oklahoma and Texas Phillip J. Leonard, Douglas R. Wood, and Wayne E. Meyer
57 Severe Drought Impacts Female Pheasant Physiology in Southwest Nebraska Jessica A. Laskowski, Gwen C. Bachman, and Joseph J. Fontaine
66 Field Discrimination of Prairie Deer Mice and White-footed Mice using Morphological Characteristics Jacob L. Berl, Kelton M. Verble, Elizabeth A. Flaherty, and Robert K. Swihart
NOTES
72 Range Extension of the Virgina Opossum (Didelphis virginiana) in North Dakota Lisa L. Walsh
76 Prairie Falcon …
Book Reviews: Raptors Of Mexico And Central America. William S. Clark And N. John Schmitt., Jack Jack Eitniear
Book Reviews: Raptors Of Mexico And Central America. William S. Clark And N. John Schmitt., Jack Jack Eitniear
The Prairie Naturalist
Whether a raptor is cryptically perched in the shadows or is viewed only as a silhouette soaring in the clouds below the glaring midday sun, raptor identification can be challenging. If you are observing raptors in the North Temperate Zone, several guides (e.g., Clark and Wheeler 2001 Dunne et al.2012) will aid you with such identifications, but few resources exist for visitors south of this zone. So, if you are interested in identifying the 69 species of diurnal raptors found in Mexico and Central America, the recently released Raptors of Mexico and Central America by William S. Clark and N. …
The Great Plains Natural Science Society
The Great Plains Natural Science Society
The Prairie Naturalist
The Great Plains Natural Science Society, formerly the North Dakota Natural Science Society, was founded in 1967 and seeks to promote interest in and understanding of natural history in the Great Plains, to encourage the conservation of natural resources, and to provide communication among individuals, institutions, and organizations of like interests. The GPNSS actively promotes the study of natural history of the Great Plains region, including geology, plants, birds, mammals, fish, insects, and other forms of life. Together with local, state, and national conservation organizations, the GPNSS fosters natural resource conservation and preservation of outstanding natural areas. The GPNSS publishes …
Prairie Falcon Depredation Attempts On A Greater Prairie-Chicken Lek In South-Central Nebraska, Andrew J. Caven, Joshua D. Wiese, William R. Wallauer
Prairie Falcon Depredation Attempts On A Greater Prairie-Chicken Lek In South-Central Nebraska, Andrew J. Caven, Joshua D. Wiese, William R. Wallauer
The Prairie Naturalist
Little information exists concerning Prairie falcons’ (Falco mexicanus; PRFA) seasonal movements, habitat use, and diet outside of the breeding season; this is especially true in the eastern portion of its wintering and migratory range (Steenhof 1998, Sharpe et al. 2001, Steenhof et al. 2005). Prairie falcons prey on ground squirrels (Spermophilus spp.), prairie dogs (Cynomys spp.), wood rats (Neotoma spp.), and other rodents during the breeding season (Bond 1936, 1942, MacLaren et al. 1988, Steenhof 1998, Steenhof et al. 1999, Johnsgard 2013). They utilize avian prey regionally as well, including western meadowlarks (Sturnella neglecta …
Notes: Range Extension Of The Virginia Opossum (Didelphis Virginiana) In North Dakota, Lisa L. Walsh, Robert Seabloom, Cody W. Thompson
Notes: Range Extension Of The Virginia Opossum (Didelphis Virginiana) In North Dakota, Lisa L. Walsh, Robert Seabloom, Cody W. Thompson
The Prairie Naturalist
The Virginia opossum (Didelphis virginiana) is broadly distributed across North America from Costa Rica in the south to southern Ontario in the north and from the southern Great Plains in the west to the eastern United States. The Virginia opossum also was introduced multiple times to thePacific Coast beginning in the late 1800s and has established populations in that region. This species is a habitat generalist known to frequent wetland and hardwood habitats but also can be found in grasslands, along forest edges, and in agricultural and suburban settings throughout its range. However, the Virginia opossum is adapted …
Survey Of Invasive Lantana Camara At Makirovana-Tsihomanaomby Forest Complex, Eliza Pessereau
Survey Of Invasive Lantana Camara At Makirovana-Tsihomanaomby Forest Complex, Eliza Pessereau
Independent Study Project (ISP) Collection
Lantana camara is a shrub known globally as an invasive pest that grows primarily in degraded areas. The species is known to exist at Makirovana-Tsihomanaomby, a forest complex in northeastern Madagascar with 167 endemic species of flora and fauna, several of which are on the IUCN Red List. The complex, specifically Tsihomanaomby forest, is used as a resource for the three rural communes that live on its outskirts, meaning that it experiences much human activity. The objective of this study was to survey the population of L. camara at two sites: one just outside of the Tsihomanaomby forest and one …
Shift In Icelandic Plant Populations Due To Climate Change: Through The Lens Of Natural Dyes, Molly Pluenneke
Shift In Icelandic Plant Populations Due To Climate Change: Through The Lens Of Natural Dyes, Molly Pluenneke
Independent Study Project (ISP) Collection
Northern residing plant species are at the highest risk for extinction due to temperature rise related to climate change (Schöb, Manuel, Choler & Veit, 2009). Climate change has also led to a northern shift in the geographic distribution of plant species (Parmesan & Yohe, 2003). This could lead to a necessary alteration in the way natural resources are utilized in arctic countries like Iceland (Lim-Camacho et al, 2017). The purpose of this study is to analyze the way in which Icelandic plant species used in natural dye practices may shift in distribution due to climate change and the potential impact …
Managing Opuntioid Cacti In Australia - Best Practice Control Manual For Austrocylindropuntia, Cylindropuntia And Optunia Species, M. R. Sheehan, S. Potter
Managing Opuntioid Cacti In Australia - Best Practice Control Manual For Austrocylindropuntia, Cylindropuntia And Optunia Species, M. R. Sheehan, S. Potter
Biosecurity published reports
The twenty-seven species of opuntioid cacti that are recognised as Weeds of National Significance are some of Australia's worst weeds. They grow over a wide climatic range and have impacted on pastoral and agricultural use of large tracts of land; pose an environmental risk to wildlife; and reduce aesthetic and recreational use, with direct impact on human safety.
Weedy infestations occur in all states and territories. Some are extensive, covering hundreds of thousands of hectares with a significant potential for range expansion
Over time there has been a substantial effort by government, industry, landholders and community groups to manage opuntioid …
The Effects Of Isoprene Emission From Native And Invasive Trees On Local Air Quality, Aarti P. Mistry
The Effects Of Isoprene Emission From Native And Invasive Trees On Local Air Quality, Aarti P. Mistry
DePaul Discoveries
Biogenic volatile organic compounds (BVOC) are the second-most abundant reactive gasses emitted into the atmosphere by the biosphere. Isoprene is a BVOC produced by the process of photosynthesis from vegetation and is emitted from plant leaves. Isoprene is a hydrocarbon that combines with oxides of nitrogen in the atmosphere to create ozone in the troposphere, an air pollutant. Invasive trees alter ecosystems and affect native tree populations. Invasive tree species in the Chicagoland area are outcompeting native tree species and expanding rapidly. The effect of isoprene emissions on air quality is a well-researched area in the atmospheric science community, however, …
Pheasant Response To Lead Ingestion, Travis J. Runia, Alex J. Solem
Pheasant Response To Lead Ingestion, Travis J. Runia, Alex J. Solem
The Prairie Naturalist
Lead is toxic to all vertebrate species and ingestion of spent lead pellets from hunting is the primary method of exposure in birds. Both acute and chronic effects occur in response to lead ingestion including death, weight loss, and reduced body function, but the effect is highly variable among species. Most research has focused on lead ingestion impacts on waterfowl, but less is known about the effects of lead ingestion by upland game such as ring-necked pheasants (Phasianus colchicus). We gavage- fed zero, one, or three lead pellets to 90 (n = 30/group) captive-raised adult hen pheasants and monitored survival …
Long-Term Changes In Canada Goose Nest Success And Nest Densities At An Iowa Wetland Complex, Brenna N. Ness, Robert W. Klaver, Guy G. Zenner
Long-Term Changes In Canada Goose Nest Success And Nest Densities At An Iowa Wetland Complex, Brenna N. Ness, Robert W. Klaver, Guy G. Zenner
The Prairie Naturalist
Giant Canada geese (Branta canadensis maxima) were extirpated from Iowa by the early 1900s due to unregulated hunting, egg gathering, and wetland drainage in the nineteenth century (Bishop 1978). Ef- forts to reintroduce Canada geese in Iowa began in 1964 (Bishop and Howing 1972) and involved releasing flightless adults and goslings at nearly 30 sites across the state (Zenner and LaGrange 1998a). In 1972, 13 flightless pairs were released at Rice Lake Wildlife Management Area (WMA; Bishop 1978). By 1989, the breeding population of Canada geese at Rice Lake WMA had increased to 420 nesting adults (G. G. Zenner, Iowa …
Assessing Parturition Date Synchrony For North Dakota Ungulates, Eric S. Michel, Jonathan A. Jenks, William F. Jensen
Assessing Parturition Date Synchrony For North Dakota Ungulates, Eric S. Michel, Jonathan A. Jenks, William F. Jensen
The Prairie Naturalist
Reproductive parameters such as conception date, and therefore parturition date, influence offspring characteristics such as sex ratio and birth mass. For example, late-conceiving reindeer (Rangifer tarandus) produced more female than male offspring compared to those who conceived early (Holand et al. 2006). Females that conceive later and therefore give birth later also can produce lighter offspring compared to those who conceive early (Schwartz et al. 1994, Holand et al. 2006). Because birth mass is positively related to adult body mass (Michel et al. 2015), conception and parturition date likely affect adult phenotype. In turn, this may influence survival because heavy …
Notes: Examining The Potential Competitive Effects Of Ventenata Dubia On Annual And Perennial Grasses, Shawn Mckay, Lesley R. Morris, Christopher E. Morris, Elizabeth A. Leger
Notes: Examining The Potential Competitive Effects Of Ventenata Dubia On Annual And Perennial Grasses, Shawn Mckay, Lesley R. Morris, Christopher E. Morris, Elizabeth A. Leger
The Prairie Naturalist
Portions of the United States are becoming increasingly dominated by annual species, with cheatgrass (Bromus tectorum L.) and medusahead (Taeniatherum caput-medusae [L.] Nevski) as the most common and well-known invaders (Bansal et al. 2014). Other invasive annual species also are present and increasing in abundance, including ventenata (Ventenata dubia [Leers] Coss.), an invasive annual grass that has been expanding within the Pacific Northwest, Great Basin, and Great Plains regions of the United States. Ventenata was first reported in North America in 1952 in Washington (Old and Callihan 1987) and has since spread to 7 western states in the USA (CA, …
Book Reviews: American Serengeti: The Last Big Animals Of The Great Plains. Dan Flores., Daniel S. Licht
Book Reviews: American Serengeti: The Last Big Animals Of The Great Plains. Dan Flores., Daniel S. Licht
The Prairie Naturalist
Before describing what Flores’ book is, I must state what it is not. It is not a technical book designed for scholarly readers. Sources are not fully cited, and the bibliography is of limited scope. Nor is it a comprehensive book of all the megafauna of the Great Plains. Although chapters are devoted to extant species such as American bison (Bison bison), pronghorn (Antilocapra americana), and coyote (Canis latrans), there are only passing references to mule and white-tailed deer (Odocoileus hemionus and O. virginianus, respectively), elk (Cervus canadensis), and bighorn sheep (Ovis canadensis). Rather, Flores devotes chapters to grizzly bears …
Diel And Monthly Movement Rates By Migratory And Resident Female Pronghorn, Paul F. Jones, T. Andrew Hurly, Chelsea Jensen, Karl Zimmer, Andrew Jakes
Diel And Monthly Movement Rates By Migratory And Resident Female Pronghorn, Paul F. Jones, T. Andrew Hurly, Chelsea Jensen, Karl Zimmer, Andrew Jakes
The Prairie Naturalist
Animal movement patterns are variable, with certain species primarily being diurnal and others nocturnal. Pronghorn (Antilocapra americana) are regarded as diurnal animals moving predominately during daylight hours. Anecdotal accounts, however, suggest that pronghorn move during the night but the extent, frequency, and importance of these nocturnal movement behaviors are unknown. To evaluate movements, we combined global positioning system relocation data from collared female pronghorn in the Northern Sagebrush Steppe between 2003 and 2007 with sunrise/sunset data within a geographical information system platform. We assessed whether mean and maximum movement rates were influenced by diel period (dawn, day, dusk, and night), …