DOCSLIB.ORG

Small Dung Beetles As Biological Control Agents: Laboratory Studies of Beetle Action on Trichostrongylid Eggs in Sheep and Cattle Feces1

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Small Dung Beetles As Biological Control Agents: Laboratory Studies of Beetle Action on Trichostrongylid Eggs in Sheep and Cattle Feces1 OF WASHINGTON, VOLUME 43, NUMBER 2, JULY 1976 171 Comm. Fish and Fisheries for 1887, Wash- Regan, J. D. 1963. A cestode plerocercoid ington, D.C. 15: 718-897. from the crowned conch. Q. T- Fla. Acad. Sci. — -. 1908. Helminth fauna of the Dry 26: 184-187. Tortugas. I. Cestodes. Carneg. Inst. Wash., Schmidt, G. D. 1969. Dioecotaenia cancellata Publ. 102: 157-190. (Linton, 1890) gen. et comb, n., a dioecious Pintner, T. 1889. Neue Unterschungen ueber cestode (Tetraphyllidea) from the cow-nosed den Bau des Bandwurmkorpers. I. Zur ray, Rhinoptera bonasus (Mitchell), in Kenntnis der Gattung Echinobothrium. Arb. Chesapeake Bay, with the proposal of a new Zool. Inst. Univ. Wien 8: 371-420. family, Dioecotaeniidae. T- Parasit. 55: 271- Read, C. P., J. E. Simmons, Jr., J. W. Campbell, 275. 1970. How to know the tapeworms. and A. H. Rothman. 1960. Permeation Brown Co. Publishers. Dubuque, Iowa. 266 p. and membrane transport in parasitism: studies Wardle, R. A., and J. A. McLeod. 1952. The on a tapeworm-elasmobranch symbiosis. Biol. /oology of tapeworms. Univ. Minn. Press, Bull. 199: 120-133. Minneapolis, Minn. 780 p. Rces, F. G. 1961. Echinobothrium acanthino- Yamaguti, S. 1959. Systema helminthum. Vol. phyllum, n. sp. from the spiral valve of Raja II. The cestodes of vertebrates. Interscience, montagui Fowler. Parasitol. 51: 407-416. New York. 860 p. Small Dung Beetles as Biological Control Agents: Laboratory Studies of Beetle Action on Trichostrongylid Eggs in Sheep and Cattle Feces1 R. C. BERGSTROM-, L. R. M/VKi2 AND B. A. WERNERS ABSTRACT: Four species of the genus Aphodius and Canthon practicola beetles were placed on sheep and cattle feces containing trichostrongylid eggs. Ten to 20 beetles were allowed to feed 1-5 days on 5-100 g of feces containing 12-3,000 trichostrongylid eggs per g. Numbers of trichostrongylid eggs in cultures with beetles decreased 24-90% more than in those without beetles within five days. Researchers of Coleoptera have shown that tera in South Dakota; in the same state Kessler coprophagous, scarabaeoid beetles are strongly and Balsbaugh (1972) noted a regular suc- attracted to fresh feces of various animals cession of adult Coleoptera in bovine manure (Fincher et al., 1970). Fincber et al. (1971) during the growing season. Sanders and studied flight activities of several species of Dobson (1966) reported on insects associated beetles during various hours of the day and with bovine manure in Indiana. More recently, found a consistent periodicity of activity which Waterhouse (1974) reported on the biological was affected by temperature change. control of dung by beetles and Fincher (1973) Geographically nearer the present study are showed dung burying beetles could serve as the observations of McDaniel and Balsbaugh biological control agents of Ostertagia oster- (1968) who showed that bovine manure is tagia, a trichostrongylid nematode parasite of used as an overwintering medium for Coleop- cattle. Dung beetle mouth parts are efficient in macerating food and could be effective in 1 Published with the approval of the Director, Dr. Neal breaking nematode eggs in feces (Miller, Hilston, University of Wyoming Agriculture Experiment Station as Journal Article 796. 1961). 2 Division of Microbiology and Veterinary Medicine, The objective of the present study was to University of Wyoming. a Wyoming State Veterinary Laboratory, Laramie 82070. determine whether or not relatively small Copyright © 2011, The Helminthological Society of Washington 172 PROCEEDINGS OF THE HELMINTHOLOGICAL SOCIETY Table 1. Small dung beetles acting on Trichostrongylus colubriformis eggs in sheep feces. No. eggs recovered % decrease in Trial Hours of Fecal subsample Initial no. no beetles with beetles egg no. due to no. beetle action size (g) eggs/g control principal beetle action 1 48 10 3000 2200 1500 32 2 28 10 3000 2200 1400 36 3 40 10 3000 2400 600 75 4 30 10 3000 2100 900 57 5 22 10 3000 2100 1300 38 6 40 10 3000 2100 200 90 7 49 6 3000 1300 600 54 8 24 5 2500 1700 900 47 9 25 10 2200 2200 1200 45 10 29 5 1700 1400 600 57 11 23 4 3000 2900 1200 59 Ave. 32.5 8 2764 2055 945 54 beetles such as the Aphodius spp. and Canthon samples were withdrawn from the control and practicola might affect trichostrongylid egg principal samples and checked by use of the numbers in feces of sheep and cattle. McMaster technique for the number of T. colubriformis eggs. Per cent decreases in num- Materials and Methods bers of eggs in the principal samples were Ovine fecal material used in the trials was recorded. Attempts were made to find tricho- collected with diapers on lambs which had strongylid eggs in the intestinal tract and/or on been orally infected via drench with third-stage the external surfaces of the beetles. larvae of Trichostrongylus colubriformis (Giles, Fecal samples containing the mixed tricho- 1892). About one month after exposure, T. strongylid ova were gathered from various, colubriformis egg numbers in ovine feces naturally infected sheep and cattle in Wyoming. ranged from about 1,700-3,000 eggs per gram Trichostrongylid (Nematodirus spp., Ostertagia (e.p.g.) with the higher number being found spp., and Marshallagia marshalli., Orloff, 1933) in many of the samples used in these trials. egg numbers in such fecal samples were much Feces taken from the diapers were placed in lower (12-184 e.p.g.) than in those of the plastic sacks and weighed. Feces not used im- artificially infected lambs. Eggs were con- mediately were stored 1-3 weeks at 0-4 C. centrated by a centrifugation-flotation tech- From the large fecal samples, equal 5-30 g nique using a sucrose solution (specific gravity subsamples were used as control (no beetles) 1.18) in a modified Lane technique. Sub- and principal (with beetles) samples for each sample size in the latter trials was larger trial. Eleven trials were carried out at labo- (100 g). ratory temperatures of ±20 C. All trials were Data were analyzed by use of Student's t test conducted with feces on filter paper over moist, in order to detect possible significant differ- sterile soil in capped polyethylene jars with ences in egg numbers between control and 40 1 mm air holes. principal samples after beetle exposure. Sta- Four to 10 Aphodius vittatus Say, 6—10 A. tistical analyses were made with a Sigma 7 coloradensis Horn and 2-4 A. granarius (L.) (Xerox Data Systems) computer. were placed on or near feces containing T. colubriformis eggs whereas 1-4 Canthon Results practicola LeConte, 3-5 A. coloradensis and Data presented in Table 1 show the per cent 3-5 A. fimetarius (L.) were used in 6 trials decrease in the numbers of Trichostrongylus with mixed species of trichostrongylid eggs. colubriformis eggs in sheep feces when The beetles were allowed to act on the feces Aphodius beetles were allowed to feed on rela- and trichostrongylid eggs for 22-49 hrs. After tively small amounts of feces (4-10 g) for the period of exposure, smaller (4-10 g) sub- relatively brief periods of time (1—2 days). Copyright © 2011, The Helminthological Society of Washington OF WASHINGTON, VOLUME 43, NUMBER 2, JULY 1976 173 Table 2. Small dung beetles acting on various trichostrongylid eggs* in cattle and sheep feces. No. eggs recovered % decrease in Trial Hours of Fecal subsample Initial no. no beetles with beetles egg no. due to no. beetle action size (g) eggs/g control principal beetle action 1 48 100 16 16 8 50 2 48 100 184 156 118 24 3 48 100 36 30 18 50 4 48 100 40 28 12 57 5 120 100 18 18 10 44 6 120 100 12 12 6 50 Ave. 72 100 51 •11 29 46 * Eggs of Ncmatodinis sp., Osterlagia sp., and Marshallagia marshalli. Recovery of eggs in control samples was With longer periods of interaction (trials 5 good (mean = 74%) and decrease in egg and 6, Table 2), decreases in numbers of numbers due to beetle action was moderate to trichostrongylid eggs due to beetle action was large, (32-90 with a mean of 54%). The relatively low as compared to the shorter term effect of the beetle action was significant at trials. In trials 5 and 6, beetles were sluggish the 1% level. and only 1 or 2 beetles had penetrated the Data in Table 2 indicate the results of 6 fecal mass within the 5 day exposure. trials where the research procedures were When the numbers of beetles dropped to similar to those of the Aphodius spp.-T. 1-3, control and principal fecal samples con- colubriformis trials but with mixed tricho- tained about the same number of eggs post- strongylid (Nematodims sp., Ostertagia sp. beetle exposure. and Marshallagia marshatti), nematode eggs in More research is needed as to the effect of sheep and cattle feces. monospecific beetle populations in interaction No trichostrongylid eggs were found in the with parasite eggs in feces. intestinal tracts or on the external parts of the beetles after they had been exposed to Acknowledgments the feces. The authors gratefully acknowledge the Discussion assistance of Dr. Rabinder Kumar who iden- Much of the previous research with coproph- tified the beetles and the help of Drs. Kingston agous beetles, pertinent to this discussion, and Jolley who made many suggestions for has been done with a larger, burying beetles improvement of the manuscript. (e.g., Phanaeus spp.) and results show that Literature Cited pasture contamination is decreased (Water- house, 1974) or that livestock infection by Fincher, G. T. 1973. Dung beetles as biological trichostrongylid larvae on vegetation is de- control agents for gastrointestinal parasites of livestock.
Load more

Recommended publications
  • The Beetles Story
    NATURE The Beetles story They outshine butterflies and moths in the world of insects and are a delight for their sheer variety—from the brilliantly coloured to the abysmally dull. But they have their uses, too, such as in museums, where flesh-eating beetles are used to clean off skeletons. Text & photographs by GEETHA IYER THE GIRAFFE WEEVIL (Cycnotrachelus flavotuberosus). Weevils are a type of beetle and they are a menace to crops. 67 FRONTLINE . MARCH 31, 2017 HOW was this watery planet we so much love born? Was it created by God or born off the Big Bang? While arguments swing between science and religion, several ancient cultures had different and interesting per- spectives on how the earth came to be. Their ideas about this planet stemmed from their observations of nature. People living in close prox- imity to nature develop a certain sen- sitivity towards living creatures. They have to protect themselves from many of these creatures and at the same time conserve the very envi- ronment that nurtures them. So there is constant observation and in- teraction with nature’s denizens, es- pecially insects, the most proliferate among all animal groups that stalk every step of their lives. The logic for creation thus revolves around differ- ent types of insects, especially the most abundant amongst them: bee- WATER BEETLE. The Cherokees believed that this beetle created the earth. tles. Beetles though much detested (Right) Mehearchus dispar of the family Tenebrionidae. The Eleodes beetle of by modern urban citizens are per- Mexico belongs to this family. ceived quite differently by indige- nous cultures.
    [Show full text]
  • The Importance of Ecological Memory for Trophic Rewilding As an Ecosystem Restoration Approach
    Biol. Rev. (2019), 94,pp.1–15. 1 doi: 10.1111/brv.12432 The importance of ecological memory for trophic rewilding as an ecosystem restoration approach 1,2,4 1,3 1,2 Andreas H. Schweiger ∗ , Isabelle Boulangeat , Timo Conradi , Matt Davis1,4 and Jens-Christian Svenning1,4 1Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000, Aarhus C, Denmark 2Plant Ecology, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440, Bayreuth, Germany 3University Grenoble Alpes, Irstea, UR LESSEM, 2 rue de la Papeterie-BP 76, F-38402, St-Martin-d’H`eres, France 4Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Aarhus University, Ny Munkegade 114, 8000, Aarhus C, Denmark ABSTRACT Increasing human pressure on strongly defaunated ecosystems is characteristic of the Anthropocene and calls for proactive restoration approaches that promote self-sustaining, functioning ecosystems. However, the suitability of novel restoration concepts such as trophic rewilding is still under discussion given fragmentary empirical data and limited theory development. Here, we develop a theoretical framework that integrates the concept of ‘ecological memory’ into trophic rewilding. The ecological memory of an ecosystem is defined as an ecosystem’s accumulated abiotic and biotic material and information legacies from past dynamics. By summarising existing knowledge about the ecological effects of megafauna extinction and rewilding across a large range of spatial and temporal scales, we identify two key drivers of ecosystem responses to trophic rewilding: (i) impact potential of (re)introduced megafauna, and (ii) ecological memory characterising the focal ecosystem. The impact potential of (re)introduced megafauna species can be estimated from species properties such as lifetime per capita engineering capacity, population density, home range size and niche overlap with resident species.
    [Show full text]
  • Dung-Beetles-FS-NYSIPM.Pdf (752.1Kb)
    From the NYSIPM Publications collection: hdl.handle.net/1813/41246 2020 New York State Integrated Pest Management Cornell Cooperative Extension Program FIELD CROPS Dung Beetles Aid in Reducing Flies and Gastrointestinal Parasites in Pastures Ken Wise1, Michael Baker2, and Jaime Cummings1 1New York State Integrated Pest Management Program, Cornell University 2Department of Animal Science, Cornell University Dung beetles are important insects for pasture ecology and There are three categories of dung beetles. soil health. They move manure into the soil, thus increasing Rollers (telecoprids) organic matter, improving soil structure, increasing water infiltration and providing essential nutrients for grass growth. Geotrupes species form balls of manure which they push from As the majority of cow/calf and stocker operations are pasture the pat to bury as brood balls. This group of insects comprise based, and with the increased interest in finishing beef on nesting species. The male and female beetles work together to grass, and grass-based dairies, there has been renewed interest bury the brood ball to feed their young. surrounding the importance of dung beetles in pasture Dwellers (endocoprids) ecology. There are hundreds of organisms that call a manure pat home. Some organisms are not beneficial, but many of Aphodius species consume the manure as they tunnel within them are. Dung beetles are in the Scarab beetle insect family, the dung pat and lay eggs directly in the manure or surrounding and are known for their digging abilities. Dung beetles exist soil. Most dung beetles found in New York are dwellers. everywhere there is fecal matter. The beetles are attracted by Tunnelers (paracoprids) the smell, and can find a new cowpat within seconds.
    [Show full text]
  • Reproductive Behaviour and Development of the Dung Beetle Typhaeus Typhoeus (Coleoptera, Geotrupidae)
    REPRODUCTIVE BEHAVIOUR AND DEVELOPMENT OF THE DUNG BEETLE TYPHAEUS TYPHOEUS (COLEOPTERA, GEOTRUPIDAE) by LIJBERTBRUSSAARD Dept. of Animal Ecology and Dept. of Soil Science & Geology, Agricultural University, Wageningen, The Netherlands . ABSTRACT This paper is part of a study of the contribution of dung beetles to soil formation in sandy soils. Typhaeus typhoeus (Linnaeus) has been selected because it makes deep burrows and is locally abundant. The beetles are active from autumn until spring, reproduction takes place from February to April. Sex pheromones probably influence pair formation. The sexes co­ operate in excavating a burrow (up to 0.7 m below surface) and in provisioning the burrow with dung as food for the larvae. Co-operation is reset by scraping each other across the thorax or elytra. Dung sausages, appr. 12.5 cm long and 15 mm in diameter, are manufac­ tured above each other. Development is rapid at 13—17°C. The life cycle is accelerated by a cold period in the third larval stage. These requirements are met by soil temperatures up to 15° C in summer and down to 5 °C in winter. The life cycle lasts two years, but longer under certain conditions. Newly hatched beetles make their way to the surface through the soil, but do not follow the old shaft. Adults reproduce only once. Differential rate of com­ pletion of the life cycle and occasional flying probably reduce the risk of local extinction. The study is thought to be relevant for behavioural ecology and soil science. CONTENTS tion of how much dung beetles contribute to Introduction 203 soil formation today.
    [Show full text]
  • Queensland Report
    IMPROVING SUSTAINABLE LAND MANAGEMENT SYSTEMS IN QUEENSLAND USING DUNG BEETLES The information contained in this report is derived from samples collected during the 2001-02 NHT Queensland Dung Beetle Project. The report has been prepared for the landholders who assisted in the trapping of dung beetles throughout Queensland. It was prepared by Penny Edwards (Technical Co-ordinator) on behalf of the Management Committee of the Queensland Dung Beetle Project. Information contained herein may not be published without permission of AgForce Queensland or the author. Acknowledgements A special vote of thanks is extended to the many landholders around Queensland who took part in the dung beetle trapping program. Without their generous contribution of time and effort, the project would not have succeeded. The professional and enthusiastic involvement of the Queensland Beef Industry Institute extension officers, Graeme Elphinstone, Jill Aisthorpe, Dave Smith and Gavin Graham is gratefully acknowledged. Thanks are extended to the Project Management Committee; namely the chairman Richard Golden, secretary/scientific advisor Angus Macqueen, project manager Mick Alexander, landholder/Landcare representatives Bruce Lord, Murray Gibson and Greg Weekes, Bill Palmer from Natural Resources and Mines, Andrew Bourne and Mick Quirk from Primary Industries, and various representatives from Environmental Protection Agency. AgForce Queensland is acknowledged for its role in leading the project, with particular thanks to Geoff Trollip and Paul Shipley for support and assistance. Ross Storey (DPI Mareeba) is thanked for identifying the native dung beetles. Tom Weir (CSIRO Entomology) provided advice on identification of introduced dung beetles. David McClenaghan and CSIRO Entomology are thanked for providing photographs of dung beetles.
    [Show full text]
  • Biological Control of Dung-Breeding Flies Affecting Pastured Cattle
    Beef Cattle Handbook BCH-3810 Product of Extension Beef Cattle Resource Committee Biological Control of Dung-Breeding Flies Affecting Pastured Cattle G. T. Fincher, Food Animal Protection Research Laboratory, USDA, ARS, College Station, TX The horn fly, Haematobia irritans, and face fly, Musca States. Several species of natural enemies of dung- autumnalis, are important pests of pastured cattle in the breeding flies have been imported to try to fill these US. These flies cost livestock producers millions of dol- non-activity gaps by endemic natural enemies. lars each year for insecticides, equipment and labor for insecticide applications, and production losses. Both Parasites species reproduce in fresh cattle dung (cowpats) Several species of parasites (tiny wasps) are known to par- dropped on pasture. Most efforts to control these pests asitize immature stages of horn flies and face flies in cow- have involved the use of insecticides. However, during pats. However, the parasitism rate of both species of flies the last 10–15 years, the horn fly has developed resis- is usually low, and only occasionally is the rate adequate tance to insecticides commonly used for its control. to reduce fly populations. Parasitism rates as high as 43 Since both species of flies are introduced pests, and 45 percent have been reported for the horn fly in they lack the natural enemies they had in their native Mississippi and Texas, respectively, and 17–20 percent in countries. However, a variety of natural enemies (para- Nebraska, but the yearly average is usually less than 5 sites, predators, and competitors) of dung-breeding flies percent.
    [Show full text]
  • Dung Beetle Article Spring 09 Enews
    Tipton D. Hudson Rangeland & livestock management 507 Nanum Street, Room 2 Ellensburg, WA 98926 (509) 962-7507 [email protected] July 09 range and livestock newsletter DRAFT Dung-beetle friendly parasite control Dung beetles are the most famous of the coprophagous (dung-eating) insects; they have received much attention in the United States in the last five years. Dung beetles come in a few different flavors (dwellers, tunnelers, and tumblers) and sizes (0.1-2.5 inches). Dwellers live in manure pats but don't do much digging. Tunnelers bury relatively large balls of manure under the manure pat. Tumblers or rollers build a manure ball, roll it away from the manure pile, and then bury it. Significant burial and breakdown of manure are accomplished primarily by tunnelers and tumblers, collectively referred to as nesters. Dwelllers break the dung pats down in a few weeks; in contrast, tunnelers and tumblers can break down dung within hours or days. All dung beetles use the liquid portion of manure for their nourishment, but not all bury substantial amounts of dung. The larger species that are rollers are more abundant in sub-tropical climates with a prolonged warm season and relatively short periods of very cold soil in winter. Dung beetles do not do well in dry soils. However, irrigated pastures common in eastern Washington provide warm, wet conditions and high-moisture manure that is attractive to dung beetles. Dung beetles provide more benefit than just reducing manure volume on pastures, even though this alone improves soil fertility, water infiltration rates, and water quality.
    [Show full text]
  • Synthesis and Future Directions for Trophic Rewilding Research Jens-Christian Svenninga,1,2,Pilb.M.Pedersena,1, C
    SPECIAL FEATURE: PERSPECTIVE PERSPECTIVE SPECIAL FEATURE: Science for a wilder Anthropocene: Synthesis and future directions for trophic rewilding research Jens-Christian Svenninga,1,2,PilB.M.Pedersena,1, C. Josh Donlanb,c, Rasmus Ejrnæsd, Søren Faurbya,MauroGalettie, Dennis M. Hansenf, Brody Sandela, Christopher J. Sandomg, John W. Terborghh, and Frans W. M. Verai aSection for Ecoinformatics & Biodiversity, Department of Bioscience, Aarhus University, DK-8000 Aarhus C, Denmark; bAdvanced Conservation Strategies, Midway, UT 84049; cDepartment of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 15853; dSection for Biodiversity & Conservation, Department of Bioscience, Aarhus University, DK-8410 Rønde, Denmark; eDepartamento de Ecologia, Universidade Estadual Paulista, 13506-900 Rio Claro, São Paulo, Brazil; fInstitute of Evolutionary Biology and Environmental Studies, University of Zurich, 8057 Zurich, Switzerland; gWildlife Conservation Research Unit, Department of Zoology, Oxford University, The Recanati-Kaplan Centre, Oxfordshire OX13 5QL, United Kingdom; hCenter for Tropical Conservation, Nicholas School of the Environment and Earth Sciences, Duke University, Durham, NC 27708; and iCommunity and Conservation Ecology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Cocon, 9700 CC Groningen, The Netherlands Edited by Yadvinder Malhi, Oxford University, Oxford, United Kingdom, and accepted by the Editorial Board August 5, 2015 (received for review March 16, 2015) Trophic rewilding is an ecological restoration strategy that uses species introductions to restore top-down trophic interactions and associated trophic cascades to promote self-regulating biodiverse ecosystems. Given the importance of large animals in trophic cascades and their widespread losses and resulting trophic downgrading, it often focuses on restoring functional megafaunas. Trophic rewilding is increasingly being implemented for conservation, but remains controversial.
    [Show full text]
  • Alternative Reproductive Tactics and Male-Dimorphism in the Horned Beetle Onthophagus Acuminatus (Coleoptera: Scarabaeidae)
    Behav Ecol Sociobiol (1997) 41: 335±341 Ó Springer-Verlag 1997 Douglas J. Emlen Alternative reproductive tactics and male-dimorphism in the horned beetle Onthophagus acuminatus (Coleoptera: Scarabaeidae) Received: 12 October 1996 / Accepted after revision: 8 August 1997 Abstract Adult dung beetles (Onthophagus acuminatus) Key words Alternative reproductive behavior á exhibit continuous variation in body size resulting from Male dimorphism á Male competition á dierential nutritional conditions experienced during Horned beetles á Onthophagus larval development. Males of this species have a pair of horns that protrude from the base of the head, and the lengths of these horns are bimodally distributed in nat- Introduction ural populations. Males growing larger than a threshold body size develop long horns, and males that do not Males in many animal species show variation in mor- achieve this size grow only rudimentary horns or no phology which is associated with dierences in behavior horns at all. Previous studies of other horned beetle (e.g., Austad 1984; Dominey 1984; Travis 1994). For species have shown that horned and hornless males often example, large and small males frequently utilize strik- have dierent types of reproductive behavior. Here I ingly dierent behaviors to encounter and mate with describe the mating behaviors of the two male morphs of females (Dominey 1980; Rubenstein 1980, 1987; How- O. acuminatus during encounters with females. Females ard 1984; Gross 1985; Kodric-Brown 1986; Arak 1988; excavate tunnels beneath dung, where they feed, mate Reynolds et al. 1993). Occasionally, variation in male and provision eggs. Large, horned males were found to morphology is dimorphic, and two or more distinct male guard entrances to tunnels containing females.
    [Show full text]
  • The Ecological Role of the Bonobo: Seed Dispersal Service in Congo Forests
    The ecological role of the Bonobo : seed dispersal service in Congo forests David Beaune To cite this version: David Beaune. The ecological role of the Bonobo : seed dispersal service in Congo forests. Agricultural sciences. Université de Bourgogne, 2012. English. NNT : 2012DIJOS096. tel-00932505 HAL Id: tel-00932505 https://tel.archives-ouvertes.fr/tel-00932505 Submitted on 17 Jan 2014 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. UNIVERSITE DE BOURGOGNE UFR Sciences de la Vie, de la Terre et de l'Environnement THÈSE Pour obtenir le grade de Docteur de l’Université de Bourgogne Discipline : Sciences Vie par David Beaune le 28 novembre 2012 The Ecological Role of the Bonobo Seed dispersal service in Congo forests Directeurs de thèse Pr Loïc Bollache, uB Pr François Bretagnolle, uB Dr Barbara Fruth, MPI Jury Bollache, Loïc Prof. Université de Bourgogne Directeur Bretagnolle, François Prof. Université de Bourgogne Directeur Hart, John Dr. Lukuru Research Fundation Rapporteur Krief, Sabrina Dr. MNHN Paris Examinateur McKey, Doyle Prof. Université de Montpellier Rapporteur © Aux jardiniers des forêts. Puissent-ils encore vivre… tout simplement 1 Remerciements Financeurs : Le projet « Rôle écologique des bonobos » a bénéficié de diverses sources de financements : .
    [Show full text]
  • Scarab Beetles in Human Culture
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Papers in Entomology Museum, University of Nebraska State November 2006 SCARAB BEETLES IN HUMAN CULTURE Brett C. Ratcliffe University of Nebraska-Lincoln, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/entomologypapers Part of the Entomology Commons Ratcliffe, Brett C., "SCARAB BEETLES IN HUMAN CULTURE" (2006). Papers in Entomology. 94. https://digitalcommons.unl.edu/entomologypapers/94 This Article is brought to you for free and open access by the Museum, University of Nebraska State at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Papers in Entomology by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Coleopterists Society Monograph Number 5:85–101. 2006. SCARAB BEETLES IN HUMAN CULTURE BRETT C. RATCLIFFE Systematics Research Collections W-436 Nebraska Hall University of Nebraska Lincoln, NE 68588-0514, U.S.A. [email protected] Abstract The use of scarab beetles (Coleoptera: Scarabaeidae) by primarily pre- and non-industrial peoples throughout the world is reviewed. These uses consist of (1) religion and folklore, (2) folk medicine, (3) food, and (4) regalia and body ornamentation. The use of scarabs in religion or cosmology, once widespread in ancient Egypt, exists only rarely today in other cultures. Scarabs have a minor role in folk medicine today although they may have been more important in the past. The predominant utilization of these beetles today, and probably in the past as well, is as food with emphasis on the larval stage. Lastly, particularly large or brightly colored scarabs (or their parts) are used (mostly in the New World) to adorn the body or as regalia.
    [Show full text]
  • A Test of High Throughput Analysis of Dung Beetle Idna
    bioRxiv preprint doi: https://doi.org/10.1101/2021.02.10.430568; this version posted February 10, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 Dung beetles as vertebrate samplers – a test of high throughput 2 analysis of dung beetle iDNA 3 4 Rosie Drinkwater1, Elizabeth L. Clare1, Arthur Y. C. Chung2, Stephen J. Rossiter1, Eleanor 5 M. Slade3,4 6 7 1. School of Biological and Chemical Sciences, Queen Mary University of London, 8 London, UK 9 2. Forest Research Centre, Forestry Department, P.O. Box 1407, 90715 Sandakan, 10 Sabah, Malaysia 11 3. Department of Zoology, University of Oxford, South Parks Road, Oxford, UK 12 4. Asian School of the Environment, Nanyang Technological University, 50 Nanyang 13 Avenue, Singapore City 14 15 orcID: 16 Clare, E. L. - 0000-0002-6563-3365 17 Chung, A.Y.C. - 0000-0002-9529-4114 18 Rossiter, S.J. - 0000-0002-3881-4515 19 Slade, E.M. - 0000-0002-6108-1196 20 21 22 Corresponding author: 23 Rosie Drinkwater, [email protected], orcID: 0000-0001-6892-1664 bioRxiv preprint doi: https://doi.org/10.1101/2021.02.10.430568; this version posted February 10, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license.
    [Show full text]