NATIVE POLLINATORS Who Are They and Are They Important?
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Investigations Into Stability in the Fig/Fig-Wasp Mutualism
Investigations into stability in the fig/fig-wasp mutualism Sarah Al-Beidh A thesis submitted for the degree of Doctor of Philosophy of Imperial College London. Declaration I hereby declare that this submission is my own work, or if not, it is clearly stated and fully acknowledged in the text. Sarah Al-Beidh 2 Abstract Fig trees (Ficus, Moraceae) and their pollinating wasps (Chalcidoidea, Agaonidae) are involved in an obligate mutualism where each partner relies on the other in order to reproduce: the pollinating fig wasps are a fig tree’s only pollen disperser whilst the fig trees provide the wasps with places in which to lay their eggs. Mutualistic interactions are, however, ultimately genetically selfish and as such, are often rife with conflict. Fig trees are either monoecious, where wasps and seeds develop together within fig fruit (syconia), or dioecious, where wasps and seeds develop separately. In interactions between monoecious fig trees and their pollinating wasps, there are conflicts of interest over the relative allocation of fig flowers to wasp and seed development. Although fig trees reap the rewards associated with wasp and seed production (through pollen and seed dispersal respectively), pollinators only benefit directly from flowers that nurture the development of wasp larvae, and increase their fitness by attempting to oviposit in as many ovules as possible. If successful, this oviposition strategy would eventually destroy the mutualism; however, the interaction has lasted for over 60 million years suggesting that mechanisms must be in place to limit wasp oviposition. This thesis addresses a number of factors to elucidate how stability may be achieved in monoecious fig systems. -
Circularly Polarized Reflection from the Scarab Beetle Chalcothea Smaragdina: Rsfs.Royalsocietypublishing.Org Light Scattering by a Dual Photonic Structure
Circularly polarized reflection from the scarab beetle Chalcothea smaragdina: rsfs.royalsocietypublishing.org light scattering by a dual photonic structure Luke T. McDonald1,2, Ewan D. Finlayson1, Bodo D. Wilts3 and Pete Vukusic1 Research 1Department of Physics and Astronomy, University of Exeter, Stocker Road, Exeter EX4 4QL, UK 2School of Biological, Earth and Environmental Sciences, University College Cork, North Mall Campus, Cork, Cite this article: McDonald LT, Finlayson ED, Republic of Ireland Wilts BD, Vukusic P. 2017 Circularly polarized 3Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland reflection from the scarab beetle Chalcothea LTM, 0000-0003-0896-1415; EDF, 0000-0002-0433-5313; BDW, 0000-0002-2727-7128 smaragdina: light scattering by a dual photonic structure. Interface Focus 7: 20160129. Helicoidal architectures comprising various polysaccharides, such as chitin http://dx.doi.org/10.1098/rsfs.2016.0129 and cellulose, have been reported in biological systems. In some cases, these architectures exhibit stunning optical properties analogous to ordered cholesteric liquid crystal phases. In this work, we characterize the circularly One contribution of 17 to a theme issue polarized reflectance and optical scattering from the cuticle of the beetle ‘Growth and function of complex forms in Chalcothea smaragdina (Coleoptera: Scarabaeidae: Cetoniinae) using optical biological tissue and synthetic self-assembly’. experiments, simulations and structural analysis. The selective reflection of left-handed circularly polarized light is attributed to a Bouligand-type Subject Areas: helicoidal morphology within the beetle’s exocuticle. Using electron microscopy to inform electromagnetic simulations of this anisotropic strati- biomaterials fied medium, the inextricable connection between the colour appearance of C. -
The Ecology and Evolution of the New World Non-Pollinating Fig Wasp
Journalof Biogeography (1996) 23, 447-458 The ecologyand evolutionof the New Worldnon-pollinating figwasp communities STUART A. WEST', EDWARD ALLEN HERRE2, DONALD M. WINDSOR2 and PHILIP R. S. GREEN' 'Departmentof Biology,Imperial College at SilwoodPark, Ascot,Berkshire SL5 7PY, U.K and 2SmithsonianTropical Research Institute, Apartado2072, Balboa, Republicof Panama Abstract. We present data on several previously of pollinatorwasps and viable seeds. Some of the species undescribedspecies fromsix genera of New World non- investigatedare parasitoidsof othernon-pollinating species. pollinatingfig wasps. We show that many of thesespecies We examinethe importance of thevarious forms of spatial have a negativeeffect on the reproductivesuccess of both heterogeneityin theparasitism rate that can act to stabilise the pollinatorwasps and the host figs.Our resultssuggest the host-parasitoidinteraction. Finally, we discuss the that the two most abundant genera of non-pollinating factorsunderlying the large variation in theabundance and wasps, the Idarnes and the Critogaster,compete for the diversityof the non-pollinatingwasps both among and same pool of femaleflowers as the pollinatingwasps in the withinfruit crops. Urostigmaand Pharmacosyceafigs, respectively. Wasps from the genusAepocerus induce and develop withinlarge galls, Key words. Ficus, parasitoid, parasites, coevolution, in the Urostigmafigs. By drainingresources from the fruit density dependence, spatial heterogeneity,community thesewasps may have a detrimentaleffect on theproduction structure. success of the pollinatingwasps and also the host figs,by 1. INTRODUCTION reducingthe figs'ability to dispersepollen (West & Herre, The wasp species that are only able to develop withinthe 1994). In contrast,species which merely gall the fruitwall fruitof fig trees are collectivelytermed fig wasps. These or unoccupiedovaries may have less obvious costs to their species include both mutualisticpollinators and parasitic hosts. -
The Diversity of the Family Cetoniidae (Coleoptera: Scarabaeoidea) of Mountain Ozren (Bosnia and Herzegovina)
Acta entomologica serbica, 2013, 18(1/2): 55-67 UDC 595.764(497.6) THE DIVERSITY OF THE FAMILY CETONIIDAE (COLEOPTERA: SCARABAEOIDEA) OF MOUNTAIN OZREN (BOSNIA AND HERZEGOVINA) MIRZETA KAŠIĆ-LELO*, SUVAD LELO and ADI VESNIĆ Faculty of Natural Sciences and Mathematics, Biology Department Zmaja od Bosne 33 71000 Sarajevo, Bosnia and Herzegovina * E-mail: [email protected] Abstract From April to September of 2008 and 2009 samples of family Cetoniidae Leach, 1815 were collected on the vertical profile of the southern slopes of Mount Ozren near Sarajevo. Research was conducted at six selected localities: Orlovac, Nahorevo, Čavljak, Skakvac, Bukovik and Crepoljsko. After 41 field investigations, 594 individuals were collected and determined as representatives of seven species. Collected data were processed with statistical software Biodiversity Pro and with options Diversity/Compare diversities: Alpha index; Berger-Parker index; Simpsons index; Margaleff index; Mackintosh index; Bray-Curtis Cluster Analysis: Single Link. By comparison of data it was concluded that Skakavac represents the typical locality for southern slopes of Mount Ozren. The species Oxythyrea funesta (Poda, 1761) is the most numerous faunistic element that was found. KEY WORDS: Cetoniidae, fauna, biodiversity, Ozren, Sarajevo, Bosnia and Herzegovina Introduction After World War II the most important data on flower chafer Cetoniidae Leach, 1815 of Bosnia and Herzegovina were given by Rene MIKŠIĆ who investigated the area of Bosnia and Herzegovina, the entire Balkan Peninsula and most of the Palaearctic (MIKŠIĆ, 1950, 1953, 1956, 1958, 1962, 1965, 1970, 1976, 1977, 1980, 1982, 1987, e.g.). What little research done on this group after the war events in Bosnia and Herzegovina from 1992-1995 was undertaken mostly by authors of this paper (LELO, 2000, 2003; LELO & KAŠIĆ-LELO, 2006a, 2006b, 2007; LELO & ŠKRIJELJ, 2001; KAŠIĆ-LELO, 2005, 2011; KAŠIĆ-LELO & LELO, 2005, 2006, 2007, 2009a, 2009b; KAŠIĆ-LELO et al., 2006), but it has been so little that it can be said that no 56 M. -
Wild Bee Declines and Changes in Plant-Pollinator Networks Over 125 Years Revealed Through Museum Collections
University of New Hampshire University of New Hampshire Scholars' Repository Master's Theses and Capstones Student Scholarship Spring 2018 WILD BEE DECLINES AND CHANGES IN PLANT-POLLINATOR NETWORKS OVER 125 YEARS REVEALED THROUGH MUSEUM COLLECTIONS Minna Mathiasson University of New Hampshire, Durham Follow this and additional works at: https://scholars.unh.edu/thesis Recommended Citation Mathiasson, Minna, "WILD BEE DECLINES AND CHANGES IN PLANT-POLLINATOR NETWORKS OVER 125 YEARS REVEALED THROUGH MUSEUM COLLECTIONS" (2018). Master's Theses and Capstones. 1192. https://scholars.unh.edu/thesis/1192 This Thesis is brought to you for free and open access by the Student Scholarship at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in Master's Theses and Capstones by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact [email protected]. WILD BEE DECLINES AND CHANGES IN PLANT-POLLINATOR NETWORKS OVER 125 YEARS REVEALED THROUGH MUSEUM COLLECTIONS BY MINNA ELIZABETH MATHIASSON BS Botany, University of Maine, 2013 THESIS Submitted to the University of New Hampshire in Partial Fulfillment of the Requirements for the Degree of Master of Science in Biological Sciences: Integrative and Organismal Biology May, 2018 This thesis has been examined and approved in partial fulfillment of the requirements for the degree of Master of Science in Biological Sciences: Integrative and Organismal Biology by: Dr. Sandra M. Rehan, Assistant Professor of Biology Dr. Carrie Hall, Assistant Professor of Biology Dr. Janet Sullivan, Adjunct Associate Professor of Biology On April 18, 2018 Original approval signatures are on file with the University of New Hampshire Graduate School. -
Diptera: Syrphidae)
MEMOIRS of THE ENTOMOLOGICAL SOCIETY OF WASHINGTON Number 9 THE FLOWER FLIES OF THE WEST INDIES (DIPTERA: SYRPHIDAE) by F. CHRISTIAN THOMPSON Agricultural Research Service Agricultural Research, Sci. and Educ. Admin. U.S. Department of Agriculture, Washington, D.C. Published by THE ENTOMOLOGICAL SOCIETY OF WASHINGTON Washington, D.C. 1981 PUBLICATIONS COMMITTEE of THE ENTOMOLOGICAL SOCIETY OF WASHINGTON 1981 E. Eric Grissell John M. Kingsolver Wayne N. Mathis George C. Steyskal Thomas E. Wallenmaier David R. Smith, Editor Printed by Allen Press, Inc. Lawrence, Kansas 66044 Date issued: 2 September 1981 TABLE OF CONTENTS Abstract ...................................................................... 4 Acknowledgments .......................... " ................ ,................. 5 Introduction .................. , ........................... ,.................... 7 Economic Importance ........ , ........................................ ,........ 7 Distribution .................................................... ,.............. 9 Taxonomy .............................................................. ,..... 13 Key to Genera of West Indian Syrphidae ......................................... 17 Syrphus Fabricius .............................................................. 20 Allograpta Osten Sacken .............................................. ,........ 23 Pseudodoros Becker .................................. , . 33 Ocyptamus Macquart ........................................................... 34 Salpingogaster Schiner ..................................... -
Wisconsin Entomoloqical Society Newsletter
Wisconsin Entomoloqical Society Newsletter Volwne 44, Number 3 October 2017 Stanley W. Szczytko (1949-2017) Szczytko was a longtime member of the Port Superior Marina in Bayfield, Wisconsin, [Editor's note - I am indebted to Dreux J. from which he often sailed with friends and Watermolen, Wisconsin Department of family. A memorial service for Szczytko Natural Resources, for sharing most of the was held on September 7 at the Sentry following information with us.] World Grand Hall. A memorial scholarship is being created in his name at UWSP. Dr. Stanley W. Szczytko, a stonefly expert from the University of Wisconsin - Stevens Point (UWSP), died as a result of a sailing The Harvestmen or Daddy Long-legs of accident on Lake Superior on August 30. He Wisconsin was 68 years old. Szczytko had retired from UWSP in 2013, after attaining the title of By Dreux J. Watermolen Professor of Water Resources. He taught in Dreux. [email protected] the College of Natural Resources (CNR) from 1979 to 2012. ln 1984, he was named Introduction the intern program coordinator and in 1989 the UWSP Water Resources Coordinator. The harvestmen or daddy long-legs During his tenure, Szczytko trained many (Arachnida: Opiliones) have been the young entomologists and future water subject of minimal study in Wisconsin. Levi resources specialists. He also helped to and Levi ( 1952), tangential to their work on establish the CNR's Aquatic Biomonitoring spiders (Araneae), published a preliminary Laboratory in 1985. checklist of fourteen species of harvestmen found in the state along with a key to their Szczytko, a native of New Jersey, had genera. -
<I>Trichiotinus Rufobrunneus</I>
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Center for Systematic Entomology, Gainesville, Insecta Mundi Florida 2018 A remarkable teratological specimen of Trichiotinus rufobrunneus (Casey) (Coleoptera: Scarabaeidae: Cetoniinae: Trichiini) Héctor Jaime Gasca-Álvarez Corporacion Sentido Natural, [email protected] Paul E. Skelley Florida Department of Agriculture and Consumer Services, [email protected] Cuauhtemoc Deloya Instituto de Ecología, A.C., [email protected] Follow this and additional works at: http://digitalcommons.unl.edu/insectamundi Part of the Ecology and Evolutionary Biology Commons, and the Entomology Commons Gasca-Álvarez, Héctor Jaime; Skelley, Paul E.; and Deloya, Cuauhtemoc, "A remarkable teratological specimen of Trichiotinus rufobrunneus (Casey) (Coleoptera: Scarabaeidae: Cetoniinae: Trichiini)" (2018). Insecta Mundi. 1175. http://digitalcommons.unl.edu/insectamundi/1175 This Article is brought to you for free and open access by the Center for Systematic Entomology, Gainesville, Florida at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Insecta Mundi by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. December 28 2018 INSECTA 0680 1–5 urn:lsid:zoobank.org:pub:6849188C-81E7-45E8-86C4-AB- A Journal of World Insect Systematics CB481A61EE MUNDI 0680 A remarkable teratological specimen of Trichiotinus rufobrunneus (Casey) (Coleoptera: Scarabaeidae: Cetoniinae: Trichiini) Héctor Jaime -
Nest Architecture, Life Cycle, and Natural
Nest architecture, life cycle, and natural enemies of the neotropical leafcutting bee Megachile (Moureapis) maculata (Hymenoptera: Megachilidae) in a montane forest William de O. Sabino, Yasmine Antonini To cite this version: William de O. Sabino, Yasmine Antonini. Nest architecture, life cycle, and natural enemies of the neotropical leafcutting bee Megachile (Moureapis) maculata (Hymenoptera: Megachilidae) in a mon- tane forest. Apidologie, Springer Verlag, 2017, 48 (4), pp.450-460. 10.1007/s13592-016-0488-9. hal- 01681897 HAL Id: hal-01681897 https://hal.archives-ouvertes.fr/hal-01681897 Submitted on 11 Jan 2018 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. Apidologie (2017) 48:450–460 Original article * INRA, DIB and Springer-Verlag France, 2017 DOI: 10.1007/s13592-016-0488-9 Nest architecture, life cycle, and natural enemies of the neotropical leafcutting bee Megachile (Moureapis ) maculata (Hymenoptera: Megachilidae) in a montane forest 1,2 1 William De O. SABINO , Yasmine A NTONINI 1Laboratório de Biodiversidade—Instituto de Ciências Exatas -
Unique Bee Communities Within Vacant Lots and Urban Farms Result from Variation in Surrounding Urbanization Intensity
sustainability Article Unique Bee Communities within Vacant Lots and Urban Farms Result from Variation in Surrounding Urbanization Intensity Frances S. Sivakoff ID , Scott P. Prajzner and Mary M. Gardiner * ID Department of Entomology, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210, USA; [email protected] (F.S.S.); [email protected] (S.P.P.) * Correspondence: [email protected]; Tel.: +1-330-601-6628 Received: 1 May 2018; Accepted: 5 June 2018; Published: 8 June 2018 Abstract: We investigated the relative importance of vacant lot and urban farm habitat features and their surrounding landscape context on bee community richness, abundance, composition, and resource use patterns. Three years of pan trap collections from 16 sites yielded a rich assemblage of bees from vacant lots and urban farms, with 98 species documented. We collected a greater bee abundance from vacant lots, and the two forms of greenspace supported significantly different bee communities. Plant–pollinator networks constructed from floral visitation observations revealed that, while the average number of bees utilizing available resources, niche breadth, and niche overlap were similar, the composition of floral resources and common foragers varied by habitat type. Finally, we found that the proportion of impervious surface and number of greenspace patches in the surrounding landscape strongly influenced bee assemblages. At a local scale (100 m radius), patch isolation appeared to limit colonization of vacant lots and urban farms. However, at a larger landscape scale (1000 m radius), increasing urbanization resulted in a greater concentration of bees utilizing vacant lots and urban farms, illustrating that maintaining greenspaces provides important habitat, even within highly developed landscapes. -
Some Biological Observations on Hoplitis Pilosifrons and Stelis Lateralis (Hymenoptera, Megachilidae)
Utah State University DigitalCommons@USU Mc Bee Lab 7-1-1955 Some Biological Observations on Hoplitis pilosifrons and Stelis lateralis (Hymenoptera, Megachilidae) Charles D. Michener University of Kansas Follow this and additional works at: https://digitalcommons.usu.edu/bee_lab_mc Part of the Entomology Commons Recommended Citation Michener, Charles D., "Some Biological Observations on Hoplitis pilosifrons and Stelis lateralis (Hymenoptera, Megachilidae)" (1955). Mc. Paper 115. https://digitalcommons.usu.edu/bee_lab_mc/115 This Article is brought to you for free and open access by the Bee Lab at DigitalCommons@USU. It has been accepted for inclusion in Mc by an authorized administrator of DigitalCommons@USU. For more information, please contact [email protected]. lNSECTSURVEY SECTION Kansas Entomological Society Vol. 28 July, 1955 Number 3 SOME BIOLOGICAL OBSERVATIONS ON HOPLITIS PILOSIFRONS and STELIS LATERALIS (HYMENOPTERA, MEGACHILIDAE) 1 By CHARLESD. MICHENER Although the observations here described concern only fragments of the life histories of the bees concerned , th ey seem worth recording as part of a study of comparative behavio r of bees. The observations were made southeast of Lawrence, Kansas, in 1951 except as otherwise indicated. ExcAVATIONoF NEST. Females of Hopliti s (A lcidamea) pilosifrons (Cres son) ·were seen collecting pollen from flowers of Am orpha frutico sa on June 1, and a nest was found in a nearly upright dead broken stem of H elianthu s tuberosus. The fema le Hoplitis was excavating pith from the stalk. She would enter her burrow at the break in the stern , rema in inside from one half to two minutes , then back out, carrying bits of pith in her jaws, fly away, and drop the pith. -
Syrphidae of Southern Illinois: Diversity, Floral Associations, and Preliminary Assessment of Their Efficacy As Pollinators
Biodiversity Data Journal 8: e57331 doi: 10.3897/BDJ.8.e57331 Research Article Syrphidae of Southern Illinois: Diversity, floral associations, and preliminary assessment of their efficacy as pollinators Jacob L Chisausky‡, Nathan M Soley§,‡, Leila Kassim ‡, Casey J Bryan‡, Gil Felipe Gonçalves Miranda|, Karla L Gage ¶,‡, Sedonia D Sipes‡ ‡ Southern Illinois University Carbondale, School of Biological Sciences, Carbondale, IL, United States of America § Iowa State University, Department of Ecology, Evolution, and Organismal Biology, Ames, IA, United States of America | Canadian National Collection of Insects, Arachnids and Nematodes, Ottawa, Canada ¶ Southern Illinois University Carbondale, College of Agricultural Sciences, Carbondale, IL, United States of America Corresponding author: Jacob L Chisausky ([email protected]) Academic editor: Torsten Dikow Received: 06 Aug 2020 | Accepted: 23 Sep 2020 | Published: 29 Oct 2020 Citation: Chisausky JL, Soley NM, Kassim L, Bryan CJ, Miranda GFG, Gage KL, Sipes SD (2020) Syrphidae of Southern Illinois: Diversity, floral associations, and preliminary assessment of their efficacy as pollinators. Biodiversity Data Journal 8: e57331. https://doi.org/10.3897/BDJ.8.e57331 Abstract Syrphid flies (Diptera: Syrphidae) are a cosmopolitan group of flower-visiting insects, though their diversity and importance as pollinators is understudied and often unappreciated. Data on 1,477 Syrphid occurrences and floral associations from three years of pollinator collection (2017-2019) in the Southern Illinois region of Illinois, United States, are here compiled and analyzed. We collected 69 species in 36 genera off of the flowers of 157 plant species. While a richness of 69 species is greater than most other families of flower-visiting insects in our region, a species accumulation curve and regional species pool estimators suggest that at least 33 species are yet uncollected.