Melanoplus Strumosus Morse Swollen Spurthroat Grasshopper
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To Be Or Not to Be a Locust? a Comparative Analysis of Behavioral Phase Change in Nymphs of Schistocerca Americana and S
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln U.S. Department of Agriculture: Agricultural Publications from USDA-ARS / UNL Faculty Research Service, Lincoln, Nebraska 2003 To be or not to be a locust? A comparative analysis of behavioral phase change in nymphs of Schistocerca americana and S. gregaria Gregory A. Sword United States Department of Agriculture Follow this and additional works at: https://digitalcommons.unl.edu/usdaarsfacpub Part of the Agricultural Science Commons Sword, Gregory A., "To be or not to be a locust? A comparative analysis of behavioral phase change in nymphs of Schistocerca americana and S. gregaria" (2003). Publications from USDA-ARS / UNL Faculty. 381. https://digitalcommons.unl.edu/usdaarsfacpub/381 This Article is brought to you for free and open access by the U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Publications from USDA-ARS / UNL Faculty by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Journal of Insect Physiology 49 (2003) 709–717 www.elsevier.com/locate/jinsphys To be or not to be a locust? A comparative analysis of behavioral phase change in nymphs of Schistocerca americana and S. gregaria Gregory A. Sword ∗ United States Department of Agriculture, Agricultural Research Service, 1500 N. Central Avenue, Sidney, MT 59270, USA Received 4 December 2002; received in revised form 28 March 2003; accepted 2 April 2003 Abstract Phenotypic plasticity in behavior induced by high rearing density is often part of a migratory syndrome in insects called phase polyphen- ism. Among locust species, swarming and the expression of phase polyphenism are highly correlated. -
Diet-Based Sodium Regulation in Sixth-Instar Grasshoppers, Schistocerca Americana (Drury) (Orthoptera: Acrididae)
Diet-based Sodium Regulation in Sixth-Instar Grasshoppers, Schistocerca americana (Drury) (Orthoptera: Acrididae) Shelby Kerrin Kilpatrick and Spencer T. Behmer Texas A&M University, Department of Entomology Edited by Benjamin Rigby and Shelby Kerrin Kilpatrick Abstract: This study analyzed sodium intake by Schistocerca americana (Drury) (Orthoptera: Acrididae) grasshoppers using three different seedling wheatgrass based diet treatments to simulate a natural food source. Sodium is a key nutrient for grasshopper cells, nerves, and reproduction. Grasshoppers acquire sodium from plants that they consume. However, it is unclear if grasshoppers self-regulate their sodium intake. Additionally, if grasshoppers self-regulate their sodium intake, the extent to which they do is uncertain. Newly molted sixth-instar grasshoppers were fed one of three diets in which the level of sodium that they had access to was varied. The S. americana grasshoppers consumed significantly less of the 0.5 M added sodium only diet when presented with an option to choose between this diet and a no-sodium-added diet (t = 9.6026, df = 7, P < 0.0001). Grasshoppers in the 0.5 M added sodium only treatment consumed a significantly lower amount of food (P < 0.0001) and gained a significantly lower mean mass (P < 0.0001), compared to the grasshoppers in the no-sodium-added only treatment. Our results generally correlated with previous studies on Locusta migratoria (L.) (Orthoptera: Acrididae), and information about the ecological tolerances and nutritional requirements of grasshoppers. Our data suggests that S. americana grasshoppers are capable of self-regulating their sodium intake. Additionally, we show that high concentrations of sodium in grasshopper diets have a negative effect on body mass. -
Spur-Throated Grasshoppers of the Canadian Prairies and Northern Great Plains
16 Spur-throated grasshoppers of the Canadian Prairies and Northern Great Plains Dan L. Johnson Research Scientist, Grassland Insect Ecology, Lethbridge Research Centre, Agriculture and Agri-Food Canada, Box 3000, Lethbridge, AB T1J 4B1, [email protected] The spur-throated grasshoppers have become the most prominent grasshoppers of North Ameri- can grasslands, not by calling attention to them- selves by singing in the vegetation (stridulating) like the slant-faced grasshoppers, or by crackling on the wing (crepitating) like the band-winged grasshoppers, but by virtue of their sheer num- bers, activities and diversity. Almost all of the spur-throated grasshoppers in North America are members of the subfamily Melanoplinae. The sta- tus of Melanoplinae is somewhat similar in South America, where the melanopline Dichroplus takes the dominant role that the genus Melanoplus pated, and hiding in the valleys?) scourge that holds in North America (Cigliano et al. 2000). wiped out so much of mid-western agriculture in The biogeographic relationships are analysed by the 1870’s. Chapco et al. (2001). The grasshoppers are charac- terized by a spiny bump on the prosternum be- Approximately 40 species of grasshoppers in tween the front legs, which would be the position the subfamily Melanoplinae (mainly Tribe of the throat if they had one. This characteristic is Melanoplini) can be found on the Canadian grass- easy to use; I know elementary school children lands, depending on weather and other factors af- who can catch a grasshopper, turn it over for a fecting movement and abundance. The following look and say “melanopline” before grabbing the notes provide a brief look at representative next. -
A Spur-Throat Grasshopper (Melanoplus Lemhiensis)
A Spur-throat Grasshopper Melanoplus lemhiensis Insecta — Orthoptera — Acrididae CONSERVATION STATUS / CLASSIFICATION Rangewide: Critically imperiled/Imperiled (G1G2) Statewide: Critically imperiled (S1) ESA: No status USFS: Region 1: No status; Region 4: No status BLM: No status IDFG: Not classified BASIS FOR INCLUSION Lack of essential information pertaining to status; Idaho endemic. TAXONOMY Hebard (1935) considered this species to be morphologically similar to M. artemisiae and M. salmonis. Hebard (1935) reported that both M. idaho and M. lemhiensis were collected on the same date and at the same location and that he did not recognize, in the field, that the observed male and female M. idaho individuals were different from M. lemhiensis. In later examination and description of both new species, M. idaho and M. lemhiensis, Hebard placed M. idaho in the montanus species group and M. lemhiensis in the artemisiae species group. Strohecker (1963) retained M. lemhiensis in the artemisiae species group. DISTRIBUTION AND ABUNDANCE This grasshopper is endemic to Idaho. The taxon is known from 1 locality in Lemhi County. No record of this species since its original collection during 1928 (Hebard 1935) is known. POPULATION TREND No data are available to suggest population trend. The species has not been recorded since 1928. HABITAT AND ECOLOGY Hebard (1935) reported that the series of specimens he collected were “secured on steep slopes of rock fragments thickly overgrown with sagebrush. The species was common only on the steepest upper slopes where there were many tufts of a fine, dry, yellow grass. The insect is a powerful though slow leaper …, but instead of immediately jumping into another bush individuals usually leaped about in the open and were consequently much easier to capture. -
ARTICULATA 1993 8(2): 1 -22 SYSTEMATIK to the Knowledge Of
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Articulata - Zeitschrift der Deutschen Gesellschaft für Orthopterologie e.V. DGfO Jahr/Year: 1993 Band/Volume: 8_2_1993 Autor(en)/Author(s): Storozhenko Sergey Artikel/Article: To the knowledge of the tribe Melanoplini (Orthoptera, Acrididae: Catantopinae) of the Eastern Palearctlca 1-22 Deutschen Gesellschaft für Orthopterologie e.V.; download http://www.dgfo-articulata.de/ ARTICULATA 1993 8(2): 1 -22 SYSTEMATIK To the knowledge of the tribe Melanoplini (Orthoptera, Acrididae: Catantopinae) of the Eastern Palearctlca Sergey Storozhenko Abstract Data on the grasshoppers of the tribe Melanoplini SCUDDER, 1897 (= Podismini JACOBSON, 1905 = Parapodisminae INOUE, 1985, syn. n) of Eastern Palearctica are given. Podisma kanoi sp. n. and Podisma sapporensis ashibetsuensis ssp. n. from Japan are described. The new synonyms are established: Rhinopodisma MISTSHENKO, 1954 = Aserratus HUANG, 1981, syn. n., Sinopodisma CHANG, 1940 = Pedopodisma ZHENG, 1980, syn. n., Parapodisma MISTSHENKO, 1947 = Pseudoparapodisma INOUE, 1985, syn. n., Monopterus FISCHER-WALDHEIM, 1846 = Bohemanella RAMME, 1951, syn.n. Tribe Melanoplini SCUDDER, 1897 Type genus: Melanoplus STAL, 1873. Notes The tribe Melanoplini was established by S.SCUDDER (1897) as a group Melanopli. JACOBSON (1905) proposed Podismini as a new name for this group. In the most modem classification the position of tribe Melanoplini is following: MISTSHENKO (1952) considered it as a tribe Podismini of subfamily Catanto pinae (Acrididae); UVAROV (1966) as Catantopinae (without division on tribes); DIRSH (1975) as subfamily Podisminae of family Catantopidae; HARZ (1975) as tribe Podismini of subfamily Catantopinae (Acrididae); VICKERY & KEVAN (1983) as subfamily Melanoplinae of family Acrididae with two tribes (Melanoplini and Podismini) and YIN (1984) as subfamily Podisminae of family Oedipodidae. -
A Time-Course Analysis of Behavioral Plasticity and Differential Gene Expression Patterns in Response to Density in Schistocerca Americana (Orthoptera: Acrididae)
University of Central Florida STARS Electronic Theses and Dissertations, 2004-2019 2014 A Time-Course Analysis of Behavioral Plasticity and Differential Gene Expression Patterns in Response to Density in Schistocerca americana (Orthoptera: Acrididae) Steven Gotham University of Central Florida Part of the Biology Commons Find similar works at: https://stars.library.ucf.edu/etd University of Central Florida Libraries http://library.ucf.edu This Doctoral Dissertation (Open Access) is brought to you for free and open access by STARS. It has been accepted for inclusion in Electronic Theses and Dissertations, 2004-2019 by an authorized administrator of STARS. For more information, please contact [email protected]. STARS Citation Gotham, Steven, "A Time-Course Analysis of Behavioral Plasticity and Differential Gene Expression Patterns in Response to Density in Schistocerca americana (Orthoptera: Acrididae)" (2014). Electronic Theses and Dissertations, 2004-2019. 1216. https://stars.library.ucf.edu/etd/1216 A TIME-COURSE ANALYSIS OF BEHAVIORAL PLASTICITY AND DIFFERENTIAL GENE EXPRESSION PATTERNS IN RESPONSE TO DENSITY IN SCHISTOCERCA AMERICANA (ORTHOPTERA: ACRIDIDAE) by STEVEN GOTHAM JR B.S. University of Central Florida, 2012 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in the Department of Biology in the College of Sciences at the University of Central Florida Orlando, Florida Fall Term 2014 © 2014 Steven E. Gotham ii ABSTRACT Phenotypic plasticity is the ability of the genotype to express alternative phenotypes in response to different environmental conditions and this is considered to be an adaptation in which a species can survive and persist in a rapidly changing environment. -
John Lowell Capinera
JOHN LOWELL CAPINERA EDUCATION: Ph.D. (entomology) University of Massachusetts, 1976 M.S. (entomology) University of Massachusetts, 1974 B.A. (biology) Southern Connecticut State University, 1970 EXPERIENCE: 2015- present, Emeritus Professor, Department of Entomology and Nematology, University of Florida. 1987-2015, Professor and Chairman, Department of Entomology and Nematology, University of Florida. 1985-1987, Professor and Head, Department of Entomology, Colorado State University. 1981-1985, Associate Professor, Department of Zoology and Entomology, Colorado State University. 1976-1981, Assistant Professor, Department of Zoology and Entomology, Colorado State University. RESEARCH INTERESTS Grasshopper biology, ecology, distribution, identification and management Vegetable insects: ecology and management Terrestrial molluscs (slugs and snails): identification, ecology, and management RECOGNITIONS Florida Entomological Society Distinguished Achievement Award in Extension (1998). Florida Entomological Society Entomologist of the Year Award (1998). Gamma Sigma Delta (The Honor Society of Agriculture) Distinguished Leadership Award of Merit (1999). Elected Fellow of the Entomological Society of America (1999). Elected president of the Florida Entomological Society (2001-2002; served as vice president and secretary in previous years). “Handbook of Vegetable Pests,” authored by J.L. Capinera, named an ”Outstanding Academic Title for 2001” by Choice Magazine, a reviewer of publications for university and research libraries. “Award of Recognition” by the Entomological Society of America Formal Vegetable Insect Conference for publication of Handbook of Vegetable Pests (2002) “Encyclopedia of Entomology” was awarded Best Reference by the New York Public Library (2004), and an Outstanding Academic Title by CHOICE (2003). “Field Guide to Grasshoppers, Katydids, and Crickets of the United States” co-authored by J.L. Capinera received “Starred Review” book review in 2005 from Library Journal, a reviewer of library materials. -
The Feasibility of Use of Caecal and Diverticular Coloration in Field Determination of Grasshopper Diet
The Great Lakes Entomologist Volume 4 Number 1 -- Spring 1971 Number 1 -- Spring Article 4 1971 July 2017 The Feasibility of Use of Caecal and Diverticular Coloration in Field Determination of Grasshopper Diet Michael Tyrkus Wayne State University Follow this and additional works at: https://scholar.valpo.edu/tgle Part of the Entomology Commons Recommended Citation Tyrkus, Michael 2017. "The Feasibility of Use of Caecal and Diverticular Coloration in Field Determination of Grasshopper Diet," The Great Lakes Entomologist, vol 4 (1) Available at: https://scholar.valpo.edu/tgle/vol4/iss1/4 This Peer-Review Article is brought to you for free and open access by the Department of Biology at ValpoScholar. It has been accepted for inclusion in The Great Lakes Entomologist by an authorized administrator of ValpoScholar. For more information, please contact a ValpoScholar staff member at [email protected]. Tyrkus: The Feasibility of Use of Caecal and Diverticular Coloration in F THE MICHIGAN ENTOMOLOGIST Vol. 4, No. 1 THE FEASIBILITY OF USE OF CAECAL AND DIVERTICULAR COLORATION IN FIELD DETERMINATION OF GRASSHOPPER DIET',' Michael Tyrkus Department of Biology, Wayne State University, Detroit, Michigan 48202 INTRODUCTION Many studies have been undertaken in the past on the food selection, food preferences, and economic damage of various grasshoppers and their allies. Among the more salient of these researches are those of Anderson (1961, 1964); Ball (1 936); Bindra (1958); Boldyrev (1928); Blackith and Blackith (1966); Brues (1946); Chapman (1957); Dibble (1940); Gangwere (1959, 1960, 1961, 1965, 1965a, 1966, 1966a, 1967);Husain etal. (1946); Isely (1938, 1946); Isely and Alexander (1949); Joyce (1952); Mulkern and Anderson (1959); Mulkern, Anderson, and Brusven (1962); Mulkern et al. -
Forms of Melanoplus Bowditchi (Orthoptera: Acrididae) Collected from Different Host Plants Are Indistinguishable Genetically and in Aedeagal Morphology
Forms of Melanoplus bowditchi (Orthoptera: Acrididae) collected from diVerent host plants are indistinguishable genetically and in aedeagal morphology Muhammad Irfan Ullah1,4 , Fatima Mustafa1,5 , Kate M. Kneeland1, Mathew L. Brust2, W. Wyatt Hoback3,6 , Shripat T. Kamble1 and John E. Foster1 1 Department of Entomology, University of Nebraska, Lincoln, NE, USA 2 Department of Biology, Chadron State College, Chadron, NE, USA 3 Department of Biology, University of Nebraska, Kearney, NE, USA 4 Current aYliation: Department of Entomology, University of Sargodha, Pakistan 5 Current aYliation: Department of Entomology, University of Agriculture Faisalabad, Pakistan 6 Current aYliation: Entomology and Plant Pathology Department, Oklahoma State University, Stillwater, OK, USA ABSTRACT The sagebrush grasshopper, Melanoplus bowditchi Scudder (Orthoptera: Acrididae), is a phytophilous species that is widely distributed in the western United States on sagebrush species. The geographical distribution of M. bowditchi is very similar to the range of its host plants and its feeding association varies in relation to sagebrush dis- tribution. Melanoplus bowditchi bowditchi Scudder and M. bowditchi canus Hebard were described based on their feeding association with diVerent sagebrush species, sand sagebrush and silver sagebrush, respectively. Recently, M. bowditchi have been observed feeding on other plant species in western Nebraska. We collected adult M. bowditchi feeding on four plant species, sand sagebrush, Artemisia filifolia, big sagebrush, A. tridentata, fringed sagebrush, A. frigidus, and winterfat, Kraschenin- Submitted 10 January 2014 nikovia lanata. We compared the specimens collected from the four plant species for Accepted 17 May 2014 Published 10 June 2014 their morphological and genetic diVerences. We observed no consistent diVerences among the aedeagal parameres or basal rings among the grasshoppers collected Corresponding author W. -
SYNAPOMORPHIES ORTHOPTERA, Sensu Stricto Grasshoppers
The Orthopteridan Orders Orthoptera Phasmatodea Plecoptera PLECOPTERIDA Embioptera Zoraptera Dermaptera POLYORTHOPTERA Grylloblattodea Mantophasmatodea Phasmatodea ORTHOPTERIDA Orthoptera Blattodea Perhaps similar Isoptera development of the gonoplac over 2nd DICTYOPTERA valvulae Mantodea Plecoptera PLECOPTERIDA Embioptera Zoraptera Dermaptera Grylloblattodea Mantophasmatodea Phasmatodea ORTHOPTERIDA Orthoptera • Second valvula reduced, with developmentBlattodea of gonoplac as functional ovipositor • Enlarged precostal field in forewingIsoptera DICTYOPTERA Mantodea ORTHOPTERA, sensu stricto Grasshoppers, Locusts, Katydids, Crickets, Wetas What is a “Weta”? A giant cricket! New Zealand Maori name of wetapunga that was given to the giant weta. Wetapunga translates roughly to "God of ugly things.” Wetas and king crickets occur principally in New Zealand and Australia. Can reach 90 mm (3.5 in) and 70 grams (2.5 oz). Orthoptera Ensifera Stenopelmatoidea Anostostomatidae ORTHOPTERA, sensu stricto Grasshoppers, Locusts, Katydids, Crickets, Wetas SYNAPOMORPHIES • Lateral flange of pronotum largely covering pleuron, which • Hind leg modified for jumping correspondingly becomes by straightening of femoral/tibial desclerotized joint (cryptopleuron) • Femur enlarged to • Hind tibia with 2 dorsal accommodate large tibia rows of teeth extensor muscle ORTHOPTERA, sensu stricto Grasshoppers, Locusts, Katydids, Crickets, Wetas SYNAPOMORPHIES • First thoracic spiracle horizontally divided • Wings inclined over abdomen at rest • Wing pads of late nymphal -
Grasshoppers
Grasshoppers Orthoptera: Acrididae Plains Lubber Pictured grasshoppers Great crested grasshopper Snakeweed grasshoppers Primary Pest Grasshoppers • Migratory grasshopper • Twostriped grasshopper • Differential grasshopper • Redlegged grasshopper • Clearwinged grasshopper Twostriped Grasshopper, Melanoplus bivittatus Redlegged Grasshopper, Melanoplus femurrubrum Differential Grasshopper, Melanoplus differentialis Migratory Grasshopper, Melanoplus sanguinipes Clearwinged Grasshopper Camnula pellucida Diagram courtesy of Alexandre Latchininsky, University of Wyoming Photograph courtesy of Jean-Francoise Duranton, CIRAD Grasshoppers lay pods of eggs below ground Grasshopper Egg Pods Molting is not for wimps! Grasshopper Nymphs Some grasshoppers found in winter and early spring Velvet-striped grasshopper – a common spring species Grasshopper Controls • Weather (rainfall mediated primarily) • Natural enemies – Predators, diseases • Treatment of breeding areas • Biological controls • Row covers Temperature and rainfall are important mortality factors Grasshoppers and Rainfall Moisture prior to egg hatch generally aids survival – Newly hatched young need succulent foliage Moisture after egg hatch generally reduces problems – Assists spread of diseases – Allows for plenty of food, reducing competition for rangeland and crops Grasshopper predators Robber Flies Larvae of many blister beetles develop on grasshopper egg pods Blister beetle larva Fungus-killed Grasshoppers Pathogen: Entomophthora grylli Mermis nigrescens, a nematode parasite of grasshoppers -
Orthoptera: Acrididae) in Response to Resource Availability and Population Density: the Role of Exploitative Competition 426
Color profile: Generic CMYK printer profile Composite Default screen Reproduction and survival in Melanoplus sanguinipes (Orthoptera: Acrididae) in response to resource availability and population density: the role of exploitative competition 426 David H Branson1 Ecology Center, Utah State University, Logan, Utah 84322, United States of America The Canadian Entomologist 135: 415 – 426 (2003) Abstract—The relative importance of exploitative competition for resources on grasshopper reproductive allocation has not been fully examined. Given the large fluctuations in grasshopper densities that periodically occur in western North Amer- ica, an increased understanding of how grasshopper survival and reproduction vary in response to intraspecific densities and per capita resource availability is impor- tant. I examined if exploitative resource competition could explain variation in re- productive allocation in Melanoplus sanguinipes (Fabricius) in response to resource availability and grasshopper population density. I also examined whether individual differences in competitive ability resulted in increased variance in egg production with low per capita resource availability. As expected with exploitative resource competition, per capita resource availability explained a significant amount of the variation in all reproductive characteristics examined. There was no effect of per ca- pita resource availability on survival. Residuals of the regressions of egg production and vitellogenesis versus per capita resource availability did not differ for resource or density treatments, indicating that exploitative competition for resources played a more important role than interference competition in determining reproductive allo- cation in M. sanguinipes. Individual differences were evident, as variation around the mean of egg production increased with resource limitation. Exploitative compe- tition for resources was important in determining both individual and population- level reproductive responses of grasshoppers to resource availability.