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Articles 3031 - 3060 of 6144
Full-Text Articles in Biodiversity
Aerial Insects Avoid Fluorescing Scorpions, Carl T. Kloock
Aerial Insects Avoid Fluorescing Scorpions, Carl T. Kloock
Euscorpius
The ecological function of scorpion fluorescence under ultraviolet light is unknown. In fact, no response of any organism to scorpion fluorescence has been documented. To determine whether or not some potential prey, specifically aerial insects, respond to scorpion fluorescence, I compared the number of aerial insects captured on sticky traps containing fluorescent scorpions to the number captured on traps containing non-fluorescent scorpions during both full and new moons. The results show that aerial insects avoid fluorescing scorpions during the full moon, when fluorescence is at its peak, but not during the new moon when it is weakest. Avoidance of fluorescing …
A New Scorpion Species Of The Genus Buthus Leach, 1815 (Scorpiones, Buthidae) From Morocco, Wilson R. Lourenço, Philippe Geniez
A New Scorpion Species Of The Genus Buthus Leach, 1815 (Scorpiones, Buthidae) From Morocco, Wilson R. Lourenço, Philippe Geniez
Euscorpius
A new species belonging to the genus Buthus Leach (Scorpiones, Buthidae) is described from northeast of Tarfaya in the extreme southwest of Morocco. The new species does not belong to the “Buthus occitanus species complex”, but is rather associated with Buthus atlantis Pocock, species also known from the southern of Morocco. With the description of Buthus bonito sp. n., t Morocco is raised to 12. A checklist of these species is provided.
Revision And Taxonomic Position Of Genera Afghanorthochirus Lourenço & Vachon, Baloorthochirus Kovařík, Butheolus Simon, Nanobuthus Pocock, Orthochiroides Kovařík, Pakistanorthochirus Lourenço, And Asian Orthochirus Karsch, With Descriptions Of Twelve New Species (Scorpiones, Buthidae), František Kovařík
Euscorpius
The genera Baloorthochirus, Butheolus, Orthochiroides, Pakistanorthochirus, and Asian species of the genus Orthochirus are revised and keys are presented to all species of Butheolus and Orthochiroides, Asian species of Orthochirus, and to species of all related genera. Afghanorthochirus Lourenço & Vachon, 1997 is synonymized with Orthochirus Karsch, 1892; Nanobuthus Pocock, 1895 is synonymized with Butheolus Simon, 1882; and Pakistanorthochirus Lourenço, 1997 is synonymized with Baloorthochirus Kovařík, 1996. Orthochiroides socotrensis sp. n. from Socotra Island and eleven new species of Orthochirus are described: O. afghanus sp. n., O. heratensis sp. n., O. jalalabadensis …
Antillean Scorpions Deposited At The Montana State University (Arachnida: Scorpiones), Luis F. De Armas
Antillean Scorpions Deposited At The Montana State University (Arachnida: Scorpiones), Luis F. De Armas
Euscorpius
A total of 71 specimens of Antillean scorpions belonging to three families [Liochelidae, Scorpionidae (Diplocentrinae), and Buthidae] and seven genera are deposited at the Montana Entomology Collection (MTEC) of the Montana State University. The most represented genus is Tityus C. L. Koch, 1836, which contains seven species from Dominican Republic. Those materials are from the following countries: Cuba, Dominican Republic, U.S. Virgin Islands, British Virgin Islands, Montserrat, and St. Kitts. The male of Tityus septentrionalis Armas & Abud Antun, 2004 is described for the first time.
Deeply Rooted: The Story Of Congaree National Park, Taylor Karlin
Deeply Rooted: The Story Of Congaree National Park, Taylor Karlin
Senior Theses
This photo-essay book was written to fulfill requirements for completion of a senior thesis project to graduate with honors from the South Carolina Honors College. Its purpose is to promote the enjoyment and preservation of the Congaree National Park by educating the public on the historical and ecological significance of the land and the many activities it has to offer. Despite its proximity to downtown Columbia, there remains a lack of public awareness about the park and the amazing activities and opportunities it has to offer. I have compiled information and pictures that will best depict the unique qualities of …
A New Vaejovis From The Mogollon Highlands Of Northern Arizona (Scorpiones: Vaejovidae), Richard F. Ayrey
A New Vaejovis From The Mogollon Highlands Of Northern Arizona (Scorpiones: Vaejovidae), Richard F. Ayrey
Euscorpius
A new scorpion species, Vaejovis halli sp. nov., is described. This relatively small, brown new species is found on Mount Ord in the Mazatzal Mountains along the Mogollon Rim of northern Arizona. The new species appears most similar to V. vorhiesi Stahnke and V. deboerae Ayrey. The most distinguishing characteristic of this new species is the number of inner denticles (ID) found on the pedipalp fingers with six on the movable finger and usually five on the fixed finger, which more closely correlates with Vaejovis species from the mountains of southern Arizona rather than those geographically closer …
A Review Of The Genus Heterometrus Ehrenberg, 1828, With Descriptions Of Seven New Species (Scorpiones, Scorpionidae), František Kovařík
A Review Of The Genus Heterometrus Ehrenberg, 1828, With Descriptions Of Seven New Species (Scorpiones, Scorpionidae), František Kovařík
Euscorpius
The genus Heterometrus is revised and a key is presented to all species except H. tristis. Subgenera Chersonesometrus Couzijn, 1978, Gigantometrus Couzijn, 1978, Javanimetrus Couzijn, 1981 and Srilankametrus Couzijn, 1981 are synonymized with the subgenus Heterometrus Ehrenberg, 1828. Seven new species of Heterometrus are described: H. beccaloniae sp. n., H. mysorensis sp. n., H. rolciki sp. n., and H. ubicki sp. n. from India, H. nepalensis sp. n., from Nepal, H. sejnai sp. n. from Thailand, and H. cimrmani sp. n. from Thailand and Vietnam. The following species and subspecies are synonymized: H. ( …
A Note On The Scorpions From The Pirin Mountains, Southwestern Bulgaria (Scorpiones: Buthidae, Euscorpiidae), Rolando Teruel, Victor Fet, Luis F. De Armas
A Note On The Scorpions From The Pirin Mountains, Southwestern Bulgaria (Scorpiones: Buthidae, Euscorpiidae), Rolando Teruel, Victor Fet, Luis F. De Armas
Euscorpius
In the present note, four scorpion species are recorded from the Pirin Mountains in southwestern Bulgaria, including the first records for Bulgaria of both Mesobuthus gibbosus (Brullé, 1832) (Buthidae) and the “mingrelicus complex” of the genus Euscorpius Thorell, 1876 (Euscorpiidae) (the latter based upon an undetermined species). Also, E. hadzii Caporiacco, 1950 and another undetermined species of Euscorpius belonging to the “carpathicus complex” are recorded from Pirin. The taxonomic affinities of the taxa are discussed, as well as some biogeographical considerations about the scorpions of this poorly studied mountainous area.
A Scorpion From A Peatbog: The First Arthropod Fossil From The Late Viséan Of The Moscow Coal Basin, Victor Fet, Michael E. Soleglad, Yulia V. Mosseichik, Dmitry E. Shcherbakov
A Scorpion From A Peatbog: The First Arthropod Fossil From The Late Viséan Of The Moscow Coal Basin, Victor Fet, Michael E. Soleglad, Yulia V. Mosseichik, Dmitry E. Shcherbakov
Euscorpius
This note describes a fossil fragment from the Upper Viséan (ca. 330 Ma), of the Moscow Coal Basin (Novgorod Region, Russia). The fossil is identified as the cuticle of a single leg segment (left femur) of a scorpion (Arachnida: Scorpiones), without any further taxonomic placement. The anatomical details of the fragment are given, along with ecological considerations. It is the first fossil scorpion record from Russia.
Alloscorpiops Wongpromi Sp. N. From Thailand And Laos (Scorpiones: Euscorpiidae: Scorpiopinae), František Kovařík, Michael E. Soleglad, Ondřej Košulič
Alloscorpiops Wongpromi Sp. N. From Thailand And Laos (Scorpiones: Euscorpiidae: Scorpiopinae), František Kovařík, Michael E. Soleglad, Ondřej Košulič
Euscorpius
Alloscorpiops wongpromi sp. n. from Thailand and Laos is described and compared with all other species of the genus Alloscorpiops Vachon, 1980. A key is presented to all species of the genus. A. wongpromi sp. n. is characterized mainly by a higher number of trichobothria on the patella, which has 33–37 external and 21–22 ventral trichobothria, and a dark-colored telson. The subgenus Laoscorpiops Lourenço, 2013 is synonymized with the nominotypical subgenus, because it was based on misinterpretation of the trichobothrial pattern, with two ventral accessory trichobothria on the chela regarded as part of the external Eb series.
Response Of Male Centruroides Vittatus (Scorpiones: Buthidae) To Aerial And Substrate-Borne Chemical Signals, Steffany B. Steinmetz, Karen C. Bost, Douglas D. Gaffin
Response Of Male Centruroides Vittatus (Scorpiones: Buthidae) To Aerial And Substrate-Borne Chemical Signals, Steffany B. Steinmetz, Karen C. Bost, Douglas D. Gaffin
Euscorpius
Chemical signaling promotes mate location throughout numerous animal taxa. In this study we investigated the possibility that striped scorpions, Centruroides vittatus, use chemical signaling in the form of odor plumes or substrate-borne deposits as communication channels. A Y-shaped arena was constructed to test scorpions’ use of air-borne chemical cues in the detection of potential mates. A second, circular behavioral choice chamber was used to test male scorpions’ responses to female deposits by direct substrate contact. Male scorpions showed no tendency to move toward the female in tests of air-borne chemical transmission but they did demonstrate behavior associated with chemical …
Scorpiofauna Of Kashan (Esfahan Province, Iran) (Arachnida: Scorpiones), Valerio Vignoli, František Kovařík, Pierangelo Crucitti
Scorpiofauna Of Kashan (Esfahan Province, Iran) (Arachnida: Scorpiones), Valerio Vignoli, František Kovařík, Pierangelo Crucitti
Euscorpius
This work contains the results of the zoological expedition of the Società Romana di Scienze Naturali to Kashan, in Iran. Four days of intensive field research provided interesting data on the community structure of scorpions of Kashan. Thirty-two scorpion specimens, all belonging to the family Buthidae, are listed and ecological notes are included. Iranobuthus krali Kovařík, 1997, Kraepelinia palpator (Birula, 1903) and Polisius persicus Fet, Capes & Sissom, 2001 were found for the first time in the examined localities. The species collected belong to different ecomorpho-types, characteristic for the particular geographic position of Kashan. We report presence of two species …
A Powerful New Light Source For Ultraviolet Detection Of Scorpions In The Field, Graeme Lowe, Steven R. Kutcher, Doug Edwards
A Powerful New Light Source For Ultraviolet Detection Of Scorpions In The Field, Graeme Lowe, Steven R. Kutcher, Doug Edwards
Euscorpius
We describe a new portable solid-state ultraviolet (UV) light that should greatly improve the ease and effectiveness of fluorescent detection of scorpions in the field. The design is based on an array of InGaN light emitting diodes (LEDs). It is in-expensive, lightweight, simple to implement, energetically efficient and mechanically rugged. Scorpion cuticular fluorescence excited by an LED array is 13-fold brighter than excitation by previously available fluorescent tube lamps drawing the same current from the battery.
Genomic Legacy Of The African Cheetah, Acinonyx Jubatus, Pavel Dobrynin, Shiping Liu, Gaik Tamazian, Zijun Xiong, Andrey A. Yurchenko, Ksenia Krasheninnikova, Sergey Kliver, A. Schmidt-Kunzel, Klaus-Peter Koepfli, Warren E. Johnson, Lukas F. K. Kuderna, Raquel Garcia-Perez, Marc De Manuel, Ricardo Godinez, Aleksey Komissarov, Alexey Makunin, Vladimir Brukhin, Weilin Qiu, Long Zhou, Fang Li, Jian Yi, Carlos A. Driscoll, Agostinho Antunes, T. K. Oleksyk, Eduardo Eizirik, Polina Perelman, Melody E. Roelke, David E. Wildt, Mark Diekhans, Tomas Marques-Bonet, Laurie Marker, Jong Bhak, Jun Wang, Guojie Zhang, Stephen J. O'Brien
Genomic Legacy Of The African Cheetah, Acinonyx Jubatus, Pavel Dobrynin, Shiping Liu, Gaik Tamazian, Zijun Xiong, Andrey A. Yurchenko, Ksenia Krasheninnikova, Sergey Kliver, A. Schmidt-Kunzel, Klaus-Peter Koepfli, Warren E. Johnson, Lukas F. K. Kuderna, Raquel Garcia-Perez, Marc De Manuel, Ricardo Godinez, Aleksey Komissarov, Alexey Makunin, Vladimir Brukhin, Weilin Qiu, Long Zhou, Fang Li, Jian Yi, Carlos A. Driscoll, Agostinho Antunes, T. K. Oleksyk, Eduardo Eizirik, Polina Perelman, Melody E. Roelke, David E. Wildt, Mark Diekhans, Tomas Marques-Bonet, Laurie Marker, Jong Bhak, Jun Wang, Guojie Zhang, Stephen J. O'Brien
Biology Faculty Articles
Background
Patterns of genetic and genomic variance are informative in inferring population history for human, model species and endangered populations.
Results
Here the genome sequence of wild-born African cheetahs reveals extreme genomic depletion in SNV incidence, SNV density, SNVs of coding genes, MHC class I and II genes, and mitochondrial DNA SNVs. Cheetah genomes are on average 95 % homozygous compared to the genomes of the outbred domestic cat (24.08 % homozygous), Virunga Mountain Gorilla (78.12 %), inbred Abyssinian cat (62.63 %), Tasmanian devil, domestic dog and other mammalian species. Demographic estimators impute two ancestral population bottlenecks: one >100,000 years …
Mesobuthus Eupeus (C.L. Koch, 1839) (Scorpiones: Buthidae) In Turkey, Ayşegül Karataş, Ahmet Karataş
Mesobuthus Eupeus (C.L. Koch, 1839) (Scorpiones: Buthidae) In Turkey, Ayşegül Karataş, Ahmet Karataş
Euscorpius
Distribution of Mesobuthus eupeus (C.L. Koch, 1839) (Scorpiones: Buthidae) in Turkey is investigated and new distributional records are given. In addition, data on the variation of the number of pectinal teeth, and some ecological features of M. eupeus are provided.
Proceedings Of The 3rd Scorpiology Symposium (American Arachnological Society, 28th Annual Meeting), Victor Fet, Michael E. Soleglad
Proceedings Of The 3rd Scorpiology Symposium (American Arachnological Society, 28th Annual Meeting), Victor Fet, Michael E. Soleglad
Euscorpius
Table of Contents
Victor Fet and Douglas D. Gaffin. Preface p. i
Karen C. Bost and Douglas D. Gaffin. Sand scorpion home burrow navigation in the laboratory p. 1
Douglas D. Gaffin and Mark E. Walvoord. Scorpion peg sensilla: are they the same or are they different? p. 7
J. Zachary Porterfield, Douglas D. Gaffin, Caitlin Porterfield and Curtis Johnston. Screening for scorpions: A non-invasive approach to tracking the movements of arachnids in sand p. 17
Tsunemi Yamashita. Surface activity, biomass, and phenology of the striped scorpion, Centruroides vittatus (Scorpiones: Buthidae) in Arkansas, USA p. 25
C. Neal McReynolds. Temporal …
Prey Capture Behavior In The East African Scorpions Parabuthus Leiosoma (Ehrenberg, 1828) And P. Pallidus Pocock, 1895 (Scorpiones: Buthidae), Jan O. Rein
Euscorpius
Prey capture behavior in Parabuthus leiosoma (Ehrenberg, 1828) and P. pallidus Pocock, 1895 was studied in the laboratory. The behavioral components involved in prey capture were identified and an ethogram is presented. The occurrence of the different prey capture components are analyzed and discussed.
A Review Of The Genus Isometrus Ehrenberg, 1828 (Scorpiones: Buthidae) With Descriptions Of Four New Species From Asia And Australia, František Kovařík
A Review Of The Genus Isometrus Ehrenberg, 1828 (Scorpiones: Buthidae) With Descriptions Of Four New Species From Asia And Australia, František Kovařík
Euscorpius
Four new species of the genus Isometrus are described: Isometrus (Reddyanus) bilyi from Australia, I. (R.) petrzelkai from Vietnam and Thailand, I. (R.) problematicus from India and I. (R.) khammamensis from India. Keys are presented to all species of both subgenera of Isometrus. Lectotypes are designated for I. (I.) thurstoni Pocock, 1893 and I. (R.) assamensis Oates, 1888. I. (I.) sankariensis Tikader & Bastawade, 1983 is synonymized with I. (I.) thurstoni Pocock, 1893. First time records include I. (I.) thurstoni Pocock, …
High-Level Systematics And Phylogeny Of The Extant Scorpions (Scorpiones: Orthosterni), Michael E. Soleglad, Victor Fet
High-Level Systematics And Phylogeny Of The Extant Scorpions (Scorpiones: Orthosterni), Michael E. Soleglad, Victor Fet
Euscorpius
A number of authors (e. g. Birula, 1917a, 1917b; Mello-Leitão, 1945; Stockwell, 1989) addressed above-level systematics of extant scorpions, and accepted the grouping of scorpion families in several superfamilies. At the same time, Kjellesvig-Waering (1986) classified all extant scorpions under the same superfamily, Scorpionoidea. Sissom (1990) and Fet et al. (2000) did not list any superfamilies, considering the systematic situation above family (and often at the family level as well) unresolved. Most recently, Lourenço (2000a) listed six superfamilies, largely following the unpublished but important study of Stockwell (1989). The goal of this paper is to address scorpion systematics and phylogeny …
The Scorpion Sternum: Structure And Phylogeny (Scorpiones: Orthosterni), Michael E. Soleglad, Victor Fet
The Scorpion Sternum: Structure And Phylogeny (Scorpiones: Orthosterni), Michael E. Soleglad, Victor Fet
Euscorpius
The structure of the sternum of all major Recent scorpion groups is analyzed in detail. Based on this analysis, two fundamental sternum types are identified, described and illustrated, type 1 and type 2. These sternum types are distinguished by criteria based on external and internal structural features. The sternum types described herein are offered as a replacement for the various characterizations used throughout the last 140 years which emphasize only gross overall shape and proportions. Phylogenetic and taxonomic ramifications of these new sternal types are discussed. The Carboniferous fossil scorpion Palaeopisthacanthus schucherti Petrunkevitch is assigned to sternum type 1 …
Fungi On White-Nose Infected Bats (Myotis Spp.) In Eastern Canada Show No Decline In Diversity Associated With Pseudogymnoascus Destructans (Ascomycota: Pseudeurotiaceae), Karen J. Vanderwolf, David Malloch, Donald F. Mcalpine
Fungi On White-Nose Infected Bats (Myotis Spp.) In Eastern Canada Show No Decline In Diversity Associated With Pseudogymnoascus Destructans (Ascomycota: Pseudeurotiaceae), Karen J. Vanderwolf, David Malloch, Donald F. Mcalpine
International Journal of Speleology
The introduction of the fungal pathogen Pseudogymnoascus destructans (Pd) to North America has stimulated research on the poorly known mycology of caves. It is possible that the introduction of Pd reduces the diversity of fungi associated with bats hibernating in caves. To test this hypothesis we examined the fungal assemblages associated with hibernating bats (Myotis spp.) pre- and post- white-nose syndrome (WNS) infection in eastern Canada using culture-dependent methods. We found the mean number of fungal taxa isolated from bats/hibernaculum was not significantly different between pre-infection (29.6 ± 6.1SD) and post-infection with WNS (32.4 ± 4.3). Although …
Assessment Of Genetic Diversity And Hybridization For The Endangered Conasauga Logperch (Percina Jenkinsi), Gregory R. Moyer, Anna L. George, Patrick L. Rakes, J.R. Shute, Ashantye' S. Williams
Assessment Of Genetic Diversity And Hybridization For The Endangered Conasauga Logperch (Percina Jenkinsi), Gregory R. Moyer, Anna L. George, Patrick L. Rakes, J.R. Shute, Ashantye' S. Williams
Southeastern Fishes Council Proceedings
The Conasauga logperch, Percina jenkinsi is one of the rarest darters in North America afforded protection under the Endangered Species Act. Unfortunately, little is known about potential threats to the genetic diversity of this species, a narrow endemic. Loss of genetic diversity, spawning of closely related individuals, and hybridization with closely related congeners have been known to increase the rate of extinction for threatened or endangered taxa. We evaluated these risks by estimating and comparing levels of genetic diversity between P. jenkinsi and P. kathae (a closely related, morphologically similar, and more abundant congener) using twelve microsatellite loci. Specifically, we …
Book Reviews: Bumble Bees Of North America. Paul H. Williams, Robbin W. Thorp, Leif L. Richardson, And Sheila R. Colla., Samuel O’Dell
Book Reviews: Bumble Bees Of North America. Paul H. Williams, Robbin W. Thorp, Leif L. Richardson, And Sheila R. Colla., Samuel O’Dell
The Prairie Naturalist
Bumblebee identification is generally considered straight- forward, yet mistakes often are made due to the degree of similarity between the color patterns of different species. Bumble Bees of North America aims to improve the accuracy of identifications by both casual observers and professionals through the use of intuitive diagrams, descriptions, and the more technical dichotomous keys. In addition to providing the first complete field guide to North American bumblebees, the authors make efficient use of the reader’s attention by summarizing taxonomic history, favored food plants, and environmental issues concerning bumblebees.
Bumble Bees of North America is organized into three distinct …
Effects Of Short-Term Soil Conditioning By Cheatgrass And Western Wheatgrass, James J. O'Connor, Janet S. Prevey
Effects Of Short-Term Soil Conditioning By Cheatgrass And Western Wheatgrass, James J. O'Connor, Janet S. Prevey
The Prairie Naturalist
The exotic grass Bromus tectorum (cheatgrass) is a ubiquitous invader in the western USA. Cheatgrass is a proficient competitor, frequently displacing native plants, forming monotypic stands and reducing biodiversity in ecosystems it invades. Our experiment tested whether short-term soil modification by cheatgrass and a predominant native grass, Pascopyrum smithii (western wheatgrass), affected subsequent growth of both species. We compared productivity of cheatgrass and western wheatgrass by harvesting aboveground biomass of plants grown in either cheatgrass- or western wheatgrass-conditioned soils over two simulated growing seasons. Results indicated that cheatgrass soils do not inhibit the productivity of the native grass, but do …
North Shore: A Natural History Of Minnesota’S Superior Coast, Janet R. Koeugh
North Shore: A Natural History Of Minnesota’S Superior Coast, Janet R. Koeugh
The Prairie Naturalist
Many readers of The Prairie Naturalist have lived along or visited Lake Superior’s coast. Like me, you have probably wondered about the geology and history of this beautiful and dramatic feature of northeastern Minnesota. Chel Anderson and Adelheid Fischer have written an accessible book that comprehensively describes the history and geology of the coast, surrounding highlands, and Lake Superior itself. In addition, the authors have provided fascinating subchapters on some of the most interesting species that are key elements of the region.
This rather large but beautiful book is arranged in five major chapters that cover the dominant geological units …
Remembering Paul B. Kannowski, Robert Seabloom
Remembering Paul B. Kannowski, Robert Seabloom
The Prairie Naturalist
I am saddened to report that Dr. Paul Kannowski passed away 3 September 2015, succumbing to cancer. He was 88. A native of Grand Forks, Paul attended the University of North Dakota for his B.S. and M.S. degrees, and the University of Michigan for his Ph.D. He joined the University of North Dakota Biology Department in 1957, retiring in 1990 after 33 years of service
Paul chaired UND’s Biology Department twice, totaling 13 years, considered to be a remarkable achievement by many of us who have been exposed to that task! His leadership was instrumental in the nearly exponential growth …
Variability In The Selection Patterns Of Pronghorn: Are They Really Native Prairie Obligates?, Paul F. Jones, Mike Grue, Mike Suitor, Darren J. Bender, Cormack Gates, Dale Eslinger, Julie Landry-Deboer
Variability In The Selection Patterns Of Pronghorn: Are They Really Native Prairie Obligates?, Paul F. Jones, Mike Grue, Mike Suitor, Darren J. Bender, Cormack Gates, Dale Eslinger, Julie Landry-Deboer
The Prairie Naturalist
In Canada, pronghorn (Antilocapra americana) are primarily considered a native prairie obligate because of their reliance on open grassland vegetation communities, although an assessment of local ecological knowledge suggests that pronghorn in Alberta select a variety of habitat from native prairie to cultivated lands. The primary objective of our study was to assess whether pronghorn in Alberta and Saskatchewan are native prairie obligates. Specifically, we addressed the following questions: 1) do individual pronghorn show similar selection patterns for native prairie and, therefore, support the notion that they are prairie obligates; 2) do pronghorn show consistent resource selection patterns …
Remembering The Days Of Old: Data Exploration And Simple Statistics, Christopher N. Jacques
Remembering The Days Of Old: Data Exploration And Simple Statistics, Christopher N. Jacques
The Prairie Naturalist
Greetings GPNSS members! By the time you read this editorial, most of you will probably be enjoying spectacular seasonal changes in the outdoors this autumn and a hint of winter in the air (for those of us in the northern Great Plains region). I write this editorial during my favorite time of year, deer hunting in the Midwest. Temperatures are finally start- ing to resemble the fall and the Christmas Holiday season is just around the corner. Much like my children have images of Santa dancing in their heads on Christmas Eve, each fall I replay images of a trophy …
Notes: Woodpecker Forage Availability In Habi- Tat Disturbances Of The Black Hills, Brian E. Dickerson, Angie K. Ambourn, Mark A. Rumble, Kurt K. Allen, Chad P. Lehman
Notes: Woodpecker Forage Availability In Habi- Tat Disturbances Of The Black Hills, Brian E. Dickerson, Angie K. Ambourn, Mark A. Rumble, Kurt K. Allen, Chad P. Lehman
The Prairie Naturalist
Habitat disturbance events are critical to ecological systems in which some bird species have become specialized. The vegetation community, reduced competition, ability to avoid predators, nest-site characteristics, and forage opportunities within a disturbed ecosystem are all aspects that make it desirable for selection by particular species (Svärdson 1949, Cody 1981, Martin 1998). Specifically, avian species rely on the forest conditions created by fire, insects, and disease (Brawn et al. 2001, Hunter et al. 2001, Devictor et al. 2008). In the Black Hills National Forest (BHNF) of South Dakota,two major types of natural disturbances include wildfires and mountain pine beetle (Dendroctonus …
Estimating Herbaceous Biomass Of Grassland Vegetation Using The Reference Unit Method, Eric D. Boyda, Jack L. Bulter, Lan Xu
Estimating Herbaceous Biomass Of Grassland Vegetation Using The Reference Unit Method, Eric D. Boyda, Jack L. Bulter, Lan Xu
The Prairie Naturalist
Aboveground net primary production provides valuable information on wildlife habitat, fire fuel loads, and forage availability. Aboveground net primary production in herbaceous plant communities is typically measured by clipping aboveground biomass. However, the high costs associated with physically harvesting plant biomass may prevent collecting sufficient data to account for natural spatial and temporal variability of vegetation at a landscape scale. Various double-sampling techniques have been developed to increase sample size while reducing cost. We applied a biomass estimation technique previously developed for estimating shrub biomass using representative samples or “reference units” to estimate herbaceous grassland biomass. Our reference units consisted …