Animal Biodiversity in Cider Apple Orchards: Simultaneous
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Image Processing Method for Automatic Discrimination of Hoverfly Species
Hindawi Publishing Corporation Mathematical Problems in Engineering Volume 2014, Article ID 986271, 12 pages http://dx.doi.org/10.1155/2014/986271 Research Article Image Processing Method for Automatic Discrimination of Hoverfly Species Vladimir CrnojeviT,1 Marko PaniT,1 Branko BrkljaI,1 Dubravko Sulibrk,2 Jelena AIanski,3 and Ante VujiT3 1 Department of Power, Electronic and Telecommunication Engineering, University of Novi Sad, Trg Dositeja Obradovi´ca 6, 21000 Novi Sad, Serbia 2Department of Information Engineering and Computer Science, University of Trento, Via Sommarive 5, Povo, 38123 Trentino, Italy 3Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovi´ca 2, 21000 Novi Sad, Serbia Correspondence should be addressed to Vladimir Crnojevic;´ [email protected] Received 27 June 2014; Accepted 17 December 2014; Published 30 December 2014 Academic Editor: Andrzej Swierniak Copyright © 2014 Vladimir Crnojevic´ et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. An approach to automatic hoverfly species discrimination based on detection and extraction of vein junctions in wing venation patterns of insects is presented in the paper. The dataset used in our experiments consists of high resolution microscopic wing images of several hoverfly species collected over a relatively long period of time at different geographic locations. Junctions are detected using the combination of the well known HOG (histograms of oriented gradients) and the robust version of recently proposed CLBP (complete local binary pattern). These features are used to train an SVM classifier to detect junctions in wing images. -
Hoverfly Visitors to the Flowers of Caltha in the Far East Region of Russia
Egyptian Journal of Biology, 2009, Vol. 11, pp 71-83 Printed in Egypt. Egyptian British Biological Society (EBB Soc) ________________________________________________________________________________________________________________ The potential for using flower-visiting insects for assessing site quality: hoverfly visitors to the flowers of Caltha in the Far East region of Russia Valeri Mutin 1*, Francis Gilbert 2 & Denis Gritzkevich 3 1 Department of Biology, Amurskii Humanitarian-Pedagogical State University, Komsomolsk-na-Amure, Khabarovsky Krai, 681000 Russia 2 School of Biology, University Park, University of Nottingham, Nottingham NG7 2RD, UK. 3 Department of Ecology, Komsomolsk-na-Amure State Technical University, Komsomolsk-na-Amure, Khabarovsky Krai, 681013 Russia Abstract Hoverfly (Diptera: Syrphidae) assemblages visiting Caltha palustris in 12 sites in the Far East were analysed using partitioning of Simpson diversity and Canonical Coordinates Analysis (CCA). 154 species of hoverfly were recorded as visitors to Caltha, an extraordinarily high species richness. The main environmental gradient affecting syrphid communities identified by CCA was human disturbance and variables correlated with it. CCA is proposed as the first step in a method of site assessment. Keywords: Syrphidae, site assessment for conservation, multivariate analysis Introduction It is widely agreed amongst practising ecologists that a reliable quantitative measure of habitat quality is badly needed, both for short-term decision making and for long-term monitoring. Many planning and conservation decisions are taken on the basis of very sketchy qualitative information about how valuable any particular habitat is for wildlife; in addition, managers of nature reserves need quantitative tools for monitoring changes in quality. Insects are very useful for rapid quantitative surveys because they can be easily sampled, are numerous enough to provide good estimates of abundance and community structure, and have varied life histories which respond to different elements of the habitat. -
Hoverfly Newsletter No
Dipterists Forum Hoverfly Newsletter Number 48 Spring 2010 ISSN 1358-5029 I am grateful to everyone who submitted articles and photographs for this issue in a timely manner. The closing date more or less coincided with the publication of the second volume of the new Swedish hoverfly book. Nigel Jones, who had already submitted his review of volume 1, rapidly provided a further one for the second volume. In order to avoid delay I have kept the reviews separate rather than attempting to merge them. Articles and illustrations (including colour images) for the next newsletter are always welcome. Copy for Hoverfly Newsletter No. 49 (which is expected to be issued with the Autumn 2010 Dipterists Forum Bulletin) should be sent to me: David Iliff Green Willows, Station Road, Woodmancote, Cheltenham, Glos, GL52 9HN, (telephone 01242 674398), email:[email protected], to reach me by 20 May 2010. Please note the earlier than usual date which has been changed to fit in with the new bulletin closing dates. although we have not been able to attain the levels Hoverfly Recording Scheme reached in the 1980s. update December 2009 There have been a few notable changes as some of the old Stuart Ball guard such as Eileen Thorpe and Austin Brackenbury 255 Eastfield Road, Peterborough, PE1 4BH, [email protected] have reduced their activity and a number of newcomers Roger Morris have arrived. For example, there is now much more active 7 Vine Street, Stamford, Lincolnshire, PE9 1QE, recording in Shropshire (Nigel Jones), Northamptonshire [email protected] (John Showers), Worcestershire (Harry Green et al.) and This has been quite a remarkable year for a variety of Bedfordshire (John O’Sullivan). -
Hoverfly Newsletter 67
Dipterists Forum Hoverfly Newsletter Number 67 Spring 2020 ISSN 1358-5029 . On 21 January 2020 I shall be attending a lecture at the University of Gloucester by Adam Hart entitled “The Insect Apocalypse” the subject of which will of course be one that matters to all of us. Spreading awareness of the jeopardy that insects are now facing can only be a good thing, as is the excellent number of articles that, despite this situation, readers have submitted for inclusion in this newsletter. The editorial of Hoverfly Newsletter No. 66 covered two subjects that are followed up in the current issue. One of these was the diminishing UK participation in the international Syrphidae symposia in recent years, but I am pleased to say that Jon Heal, who attended the most recent one, has addressed this matter below. Also the publication of two new illustrated hoverfly guides, from the Netherlands and Canada, were announced. Both are reviewed by Roger Morris in this newsletter. The Dutch book has already proved its value in my local area, by providing the confirmation that we now have Xanthogramma stackelbergi in Gloucestershire (taken at Pope’s Hill in June by John Phillips). Copy for Hoverfly Newsletter No. 68 (which is expected to be issued with the Autumn 2020 Dipterists Forum Bulletin) should be sent to me: David Iliff, Green Willows, Station Road, Woodmancote, Cheltenham, Glos, GL52 9HN, (telephone 01242 674398), email:[email protected], to reach me by 20 June 2020. The hoverfly illustrated at the top right of this page is a male Leucozona laternaria. -
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 ..................................... -
A Trait-Based Approach Laura Roquer Beni Phd Thesis 2020
ADVERTIMENT. Lʼaccés als continguts dʼaquesta tesi queda condicionat a lʼacceptació de les condicions dʼús establertes per la següent llicència Creative Commons: http://cat.creativecommons.org/?page_id=184 ADVERTENCIA. El acceso a los contenidos de esta tesis queda condicionado a la aceptación de las condiciones de uso establecidas por la siguiente licencia Creative Commons: http://es.creativecommons.org/blog/licencias/ WARNING. The access to the contents of this doctoral thesis it is limited to the acceptance of the use conditions set by the following Creative Commons license: https://creativecommons.org/licenses/?lang=en Pollinator communities and pollination services in apple orchards: a trait-based approach Laura Roquer Beni PhD Thesis 2020 Pollinator communities and pollination services in apple orchards: a trait-based approach Tesi doctoral Laura Roquer Beni per optar al grau de doctora Directors: Dr. Jordi Bosch i Dr. Anselm Rodrigo Programa de Doctorat en Ecologia Terrestre Centre de Recerca Ecològica i Aplicacions Forestals (CREAF) Universitat de Autònoma de Barcelona Juliol 2020 Il·lustració de la portada: Gala Pont @gala_pont Al meu pare, a la meva mare, a la meva germana i al meu germà Acknowledgements Se’m fa impossible resumir tot el que han significat per mi aquests anys de doctorat. Les qui em coneixeu més sabeu que han sigut anys de transformació, de reptes, d’aprendre a prioritzar sense deixar de cuidar allò que és important. Han sigut anys d’equilibris no sempre fàcils però molt gratificants. Heu sigut moltes les persones que m’heu acompanyat, d’una manera o altra, en el transcurs d’aquest projecte de creixement vital i acadèmic, i totes i cadascuna de vosaltres, formeu part del resultat final. -
Hoverflies: the Garden Mimics
Article Hoverflies: the garden mimics. Edmunds, Malcolm Available at http://clok.uclan.ac.uk/1620/ Edmunds, Malcolm (2008) Hoverflies: the garden mimics. Biologist, 55 (4). pp. 202-207. ISSN 0006-3347 It is advisable to refer to the publisher’s version if you intend to cite from the work. For more information about UCLan’s research in this area go to http://www.uclan.ac.uk/researchgroups/ and search for <name of research Group>. For information about Research generally at UCLan please go to http://www.uclan.ac.uk/research/ All outputs in CLoK are protected by Intellectual Property Rights law, including Copyright law. Copyright, IPR and Moral Rights for the works on this site are retained by the individual authors and/or other copyright owners. Terms and conditions for use of this material are defined in the policies page. CLoK Central Lancashire online Knowledge www.clok.uclan.ac.uk Hoverflies: the garden mimics Mimicry offers protection from predators by convincing them that their target is not a juicy morsel after all. it happens in our backgardens too and the hoverfly is an expert at it. Malcolm overflies are probably the best the mimic for the model and do not attack Edmunds known members of tbe insect or- it (Edmunds, 1974). Mimicry is far more Hder Diptera after houseflies, blue widespread in the tropics than in temperate bottles and mosquitoes, but unlike these lands, but we have some of the most superb insects they are almost universally liked examples of mimicry in Britain, among the by the general public. They are popular hoverflies. -
Baccha (Ocyptamus) Medina, B
The Syrphidae of Puerto Rico1'2 H. S. Telford3-* One cannot state with certainty when the first syrphid was collected from Puerto Rico and adjacent islands. Fabricius described a number of 1 Manuscript submitted to Editorial Board October 30, 1972. 2 Scientific paper number 3914. College of Agriculture Research Center, Washing ton State University, Pullman, Washington. Work was conducted under Project No. 0046. 3 Professor and Entomologist, Department of Entomology, Washington State University; Visiting Scientist, Department of Entomology, Agricultural Experiment Station, Mayagiiez Campus, Uío Piedras, Puerto Rico, September 1968-March 1969. This study was made possible by financial support from the Department of En tomology, Agricultural Experiment Station, Mayagiiez Campus, University of Puerto Rico, Río Piedras. I wish to thank Dr. L. P. R. F. Martorell, formerly Chairman, Department of Entomology, Agricultural Experiment Station, especially for his support and aid in all aspects of the project. Mr. Silverio Medina Gaud, Associate Entomologist, Agricultural Experiment Station, was of considerable help. He ac companied me on almost all field trips, assisted in sorting and preparing the material and made valuable field trips on his own. Dr. J. R. Vockeroth, Entomology Research Institute, Ottawa, Canada, verified many determinations and offered advice on nomenclatural problems. Others who materially aided in the loan of specimens, verified determinations or in other ways were: Dr. George Drury, U.S. Atomic Energy Commission, El Verde-Caribbean National Forest, Puerto Rico; Dr. Y. S. Sedman, Western Illinois University; Dr. L. V. Knutson, Systematic Entomology Laboratory, Agricultural Research Service, United States Department of Agriculture; Dr. P. W. Wygodzinsky, American Museum of Natural History; Dr. -
Williamston SIS Species List
Williamston Special Invertebrate Site species list This is a list of invertebrate species which have been recorded at Williamston Special Invertebrate Site. Not all the records included in this list have been verified. The aim of the list is to give recorders an idea of the range of species found at the site. To the best of our knowledge, this list of records is correct, as of November 2019. Scientific name English name Bees Andrena scotica Chocolate mining bee Bombus campestris Field cuckoo bee Bombus hortorum Garden bumblebee Bombus lucorum agg. Bombus pascuorum Common carder bee Bombus pratorum Early bumblebee Bombus terrestris Buff-tailed bumblebee Halictus rubicundus Orange-legged furrow bee Lasioglossum calceatum Common furrow bee Nomada marshamella Marsham’s nomad bee Beetles Calvia quatuordecimguttata Cream-spot ladybird Coccinella septempunctata 7-spot ladybird Curtonotus aulicus Oiceoptoma thoracicum Red-breasted carrion beetle Rhagonycha fulva Common red soldier beetle Thanatophilus rugosus Bugs Anthocoris nemorum Common flower bug Liocoris tripustulatus Lygus rugulipennis Tarnished plant bug Philaenus spumarius Cuckoo-spit insect/ Common froghopper Butterflies Aglais io Peacock Aglais urticae Small tortoiseshell Lycaena phlaeas Small copper Maniola jurtina Meadow brown Pararge aegeria Speckled wood Pieris napi Green-veined white Vanessa atalanta Red admiral Vanessa cardui Painted lady Flies Bibio pomonae Red-legged St-Mark's fly Dasysyrphus albostriatus Stripe-backed Dasysyrphus Dexiosoma caninum Epistrophe grossulariae Broad-banded -
2015 " 35Th PAKISTAN CONGRESS of ZOOLOGY (INTERNATIONAL) CENTRE OF
PROCEEDINGS OF PAKISTAN CONGRESS OF ZOOLOGY Volume 35, 2015 All the papers in this Proceedings were refereed by experts in respective disciplines THIRTY FOURTH PAKISTAN CONGRESS OF ZOOLOGY held under auspices of THE ZOOLOGICAL SOCIETY OF PAKISTAN at CENTRE OF EXCELLENCE IN MARINE BIOLOGY, UNIVERSITY OF KARACHI, KARACHI MARCH 1 – 4, 2015 CONTENTS Acknowledgements i Programme ii Members of the Congress xi Citations Life Time Achievement Award 2015 Late Prof. Dr. Shahzad A. Mufti ............................................xv Dr. Quddusi B. Kazmi .........................................................xvii Dr. Muhammad Ramzan Mirza.............................................xix Abdul Aziz Khan...................................................................xx Zoologist of the year award 2015............................................... xxii Prof. Dr. A.R. Shakoori Gold Medal 2015 ............................... xxiii Prof. Dr. Mirza Azhar Beg Gold Medal 2015 ........................... xxiv Prof. Imtiaz Ahmad Gold Medal 2015 ........................................xxv Prof. Dr. Nasima M. Tirmizi Memorial Gold Medal 2015..........xxvi Gold Medals for M.Sc. and Ph.D. positions 2015 ................... xxviii Certificate of Appreciation .........................................................xxx Research papers SAMI, A.J. JABBAR, B., AHMAD, N., NAZIR, M.T. AND SHAKOORI, A.R. in silico analysis of structure-function relationship of a neutral lipase from Tribolium castaneum .......................... 1 KHAN, I., HUSSAIN, A., KHAN, A. AND -
Simon Braidman's Bluebell Heath Project Notes 2014
REPORT FOR WORK PARTY SUNDAY 5TH JANUARY 2014 ATTENDEES: Simon Braidman, John Winter, Neville Day, Mo Farhand, John Bugler, Josh Kalms, Sue Kable and Rajinder Hayer 10.30am to 2.00pm Weather : clear then clouding over, light rain shower then dull dry 5 degrees centigrade TASK: Work along the top edge of Bluebell Heath, removing scrub saplings. Secondary tasks: 1)thinning scrub retention blocks by taking out lower branches 2) removing Holly from behind eastern end of bare earth bank 3) checking on whether the bare earth bank stops water flow across New Scrape 4) checking on flytips on Heathbourne Road and new really bad one on Common Road It was really great to see people after the long Christmas break. It is important to control the scrub level in Bluebell Heath. A lot of money has been spent re‐opening the clearing and the danger is the area, re‐scrubbing up. The most insidious threat are the masses of tiny scrub saplings which look like whole areas have had the Woodland Trust in, planting trees. Young scrub is an important habitat but it is superabundant and the quicker one can deal with them the better. The extremely heavy rainfall should make it easier to remove the whole tree. If only it was that easy. The reality is that these are not single trees often each flimsy stem is attached to others by an underground horizontal root. This root can be 2inches thick. Also there are living stumps with suckers growing from them sometimes with horizontal roots wrapped around them or even fused to them. -
Britain's Hoverflies
© Copyright, Princeton University Press. No part of this book may be distributed, posted, or reproduced in any form by digital or mechanical means without prior written permission of the publisher. Melanostoma 3 British species (2 illustrated) Small, yellow-and-black hoverflies with a completely black face and scutellum that are best found by sweeping in grassy places . Females are readily identified by their distinctive abdominal markings . Males are most likely to be confused with Platycheirus (pp. 78–91), but do not have the modified front legs prevalent in that genus . The larvae feed on a variety of aphids amongst leaf-litter and the ground layer . Adults often visit ostensibly wind-pollinated flowers, such as plantains, grasses and sedges, to feed on pollen . Dead hoverflies found hanging below grass and flower heads are often Melanostoma that have been killed by the fungus Entomophthora muscae . Widespread Melanostoma mellinum Wing length: 4·75–7 mm Identification:Separation from M. scalare requires careful examination. Females have very narrow dust spots on the mostly shining black frons. Males have a relatively short abdomen in which segments T2 and T3 are no longer than they are wide. In the uplands it is necessary to check carefully for the Nationally Scarce M. dubium. Observation tips: A widespread and abundant grassland species which can be numerous in the uplands, especially around wet flushes on moorland. Similar species: All Melanostoma species are very similar. They could be confused with some Platycheirus (see pp. 78–91) and possibly Pelecocera (p. 226), but any confusion is readily NOSAJJMAMFJ D resolved by careful examination.