(Orthoptera: Ensifera) Im Kakamega Forest Reserve, Kenia
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Relationship Between Insect Vectors Abundance And
RELATIONSHIP BETWEEN INSECT VECTORS ABUNDANCE AND OCCURRENCE OF RICE YELLOW MOTTLE VIRUS IN FARMERS’ FIELDS IN KILOMBERO DISTRICT BONAVENTURE JANUARY A DISSERTATION SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE IN CROP SCIENCE OF SOKOINE UNIVERSITY OF AGRICULTURE. MOROGORO, TANZANIA. 2012 ii ABSTRACT Rice yellow mottle virus (RYMV) endemic to Africa is spread within and between rice fields by several species of Chrysomelid beetles and grasshoppers. In Tanzania and particularly in Kilombero District, the virus is increasingly becoming a serious problem to rice production. The relationships between the insect vectors and RYMV disease incidence and severity were not fully known hence the need for this study. The assessment of both disease incidence and severity of RYMV and population abundance of its insect’s vectors were conducted in the three divisions of Mngeta, Ifakara and Mang’ula in Kilombero District, Tanzania in 4m2 quadrat. Insect sampling was conducted using sweep net while RYMD incidence and severity were visually assessed in a 4 m2 quadrat. Results of the insect identification indicated the presence of two insect vectors of RYMV i.e. (Chaetocnema spp. and O. hyla). The population densities of these RYMV vectors were higher at the border parts of the rice fields than at the middle parts. On the other hand, the incidence and severity of RYMV disease increased with the age of the crop. Results of within field distribution also indicated a random distribution of RYMV-affected plants in the rice fields in the agro ecosystem. The field studies of the virus–vector relationship established that RYMV occurrence varied in space and time and crop development stages. -
Acoustic Monitoring and Response of Katydids (Orthoptera: Tettigoniidae) to the Landscape Mosaic in a Biosphere Reserve
Acoustic monitoring and response of katydids (Orthoptera: Tettigoniidae) to the landscape mosaic in a Biosphere Reserve Aileen Celeste Thompson Thesis presented in fulfilment of the requirements for the degree of Master of Science in the Faculty of AgriSciences at Stellenbosch University Supervisor: Prof. Michael J. Samways Co-supervisor: Dr. Corinna S. Bazelet March 2017 Stellenbosch University https://scholar.sun.ac.za Declaration By submitting this thesis electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the sole author thereof (save to the extent explicitly otherwise stated), that reproduction and publication thereof by Stellenbosch University will not infringe any third party rights and that I have not previously in its entirety or in part submitted it for obtaining any qualification. March 2017 Copyright © 2017 Stellenbosch University All rights reserved i Stellenbosch University https://scholar.sun.ac.za Abstract A charismatic group within the Orthoptera, katydids can be found in a variety of habitat types world-wide due to their excellent bark and leaf mimicry skills. Most male katydids produce species-specific calls to attract female mates. If katydids, like their close relatives the grasshoppers, can function as effective biological indicators, then acoustic monitoring of katydid songs may result in a novel and non-invasive method to rapidly assess local biodiversity. Furthermore, information regarding threat statuses, distributions and life history traits can be inferred for all South African katydid species, leading to the development of a Katydid Biotic Index (KBI) based on the highly effective Dragonfly Biotic Index. If proven effective, the KBI would allow for biodiversity assessments to account for detailed aspects of katydid species composition in addition to the diversity measures normally utilized for biodiversity assessment (e.g. -
Review Article Insect Vectors of Rice Yellow Mottle Virus
Hindawi Publishing Corporation Journal of Insects Volume 2015, Article ID 721751, 12 pages http://dx.doi.org/10.1155/2015/721751 Review Article Insect Vectors of Rice Yellow Mottle Virus Augustin Koudamiloro,1,2 Francis Eegbara Nwilene,3 Abou Togola,3 and Martin Akogbeto2 1 Africa Rice Center (AfricaRice), 01 BP 2031 Cotonou, Benin 2University of Abomey-Calavi, 01 BP 4521 Cotonou, Benin 3AfricaRice Nigeria Station, c/o IITA, PMB 5320, Ibadan, Nigeria Correspondence should be addressed to Augustin Koudamiloro; [email protected] Received 9 July 2014; Revised 2 November 2014; Accepted 5 November 2014 Academic Editor: Rostislav Zemek Copyright © 2015 Augustin Koudamiloro 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. Rice yellow mottle virus (RYMV) is the major viral constraint to rice production in Africa. RYMV was first identified in 1966 in Kenya and then later in most African countries where rice is grown. Several studies have been conducted so far on its evolution, pathogenicity, resistance genes, and especially its dissemination by insects. Many of these studies showed that, among RYMV vectors, insects especially leaf-feeders found in rice fields are the major source of virus transmission. Many studies have shown that the virus is vectored by several insect species in a process of a first ingestion of leaf material and subsequent transmission in following feedings. About forty insect species were identified as vectors of RYMV since 1970 up to now. They were essentially the beetles, grasshoppers, and the leafhoppers. -
The First Report of the Diversity of Ensifera (Insecta: Orthoptera) from Rokan Hulu District, Riau Province
SCRIPTA BIOLOGICA | VOLUME 4 | NOMER 2 | JUNI 2017 | 99107 | HTTPS://DOI.ORG/10.20884/1.SB.2017.4.2.395 THE FIRST REPORT OF THE DIVERSITY OF ENSIFERA (INSECTA: ORTHOPTERA) FROM ROKAN HULU DISTRICT, RIAU PROVINCE SUTRISNO SYAHLAN, ROFIZA YOLANDA, RIKI RIHARJI LUBIS Biology Education Study Programme, Faculty of Teacher Training and Education, University of Pasir Pengaraian, Rokan Hulu District 28457, Riau Province, Indonesia A B S T R A C T The objective of this study was to determine the diversity of the suborder Ensifera in Dusun 3, Rambah Hilir Tengah, Rambah Hilir Sub- District, Rokan Hulu District, Riau Province, Indonesia. The study was conducted from September 2015 to January 2016 at six sampling locations by sweep net and hand picking at day and night hours. We recorded 17 species of the Ensifera belonging to 12 genera, 2 families, and 10 subfamilies. The diversity comprised of Conochepalus maculatus, Conochepalus melaenus, Conochepalus sp., Elbenia sp., Elimaea sp., Euscyrtus concinnus, Hexacentrus unicolor, Loxoblemus parabolicus, Mecopoda elongate, Mecopoda sp., Nisitrus vittatus, Orthelimaea sp., Podoscirtinae species 1 (unidentified), Teleogryllus emma, Teleogryllus sp., Trellius sp. and Xabea sp. The C. maculatus and E. concinnus were the predominant species in this study. KEY WORDS: crickets, katydids, grassland Corresponding Author: SUTRISNO SYAHLAN | email: [email protected] Submitted: 06-04-2017 | Accepted: 22-05-2017 run and jump readily on the water. Females of INTRODUCTION different groups lay eggs in stems or twigs, in wood, Indonesia is a mega-biodiversity country which under bark, in the ground, or in burrows (Resh & endowed rich and unique biodiversity in the tropical Cardé, 2003; Gillot, 2005). -
The Influence of Fire on Saltatoria Diversity in Coastal Habitats Near Pangani,Tanzania (East Africa)
ECOTROPICA 11: 53–61, 2005 © Society for Tropical Ecology THE INFLUENCE OF FIRE ON SALTATORIA DIVERSITY IN COASTAL HABITATS NEAR PANGANI,TANZANIA (EAST AFRICA) Claudia Hemp Dept. Animal Ecology II, University of Bayreuth, 95440 Bayreuth Abstract. In burnt coastal grasslands, fire-disturbed forest remnants, and undisturbed coastal forests of the Pangani area (Tanzania) 61 Saltatoria species were recorded. Comparing open-land habitats with forest and forest edge habitats, diver- sity rises in open-land habitats, as nearly 60% of the recorded species were found within grasslands. However, the share of endemic and near-endemic species decreases, as only 5% of the species occurring in open-land habitats were endemics, 14% are distributed throughout East Africa, and the majority (81%) are widespread forms. Forest and forest edge habitats, on the other hand, had 60% endemic species, 32% species restricted to East Africa, and only 8% widespread Saltatoria. The majority of the coastal endemics are highly endangered by the ongoing destruction of indigenous forest. Tangana asymmetrica was one of the few coastal endemics that also occurred in fire-influenced forest remnants, while most other forest species were exclusively found in closed undisturbed forest communities of the Gendagenda forest reserve. The new record of Parepistaurus pygmaeus in the Gendagenda reserve offers an explanation of the hitherto disjunct distribution of this flightless species. Accepted 15 June 2005. Key words: Biodiversity, conservation, endemism, fire influence, indigenous tropical lowland forest, Orthoptera, Saltatoria, Tanzania, tropical coastal grasslands. INTRODUCTION lived in the area, mostly farmers, cultivating the fields intensively with bananas, maize, sweet potatoes, ma- The forests along the Kenyan and Tanzanian coast are nihot etc. -
Rice-Feeding Insects of Tropical Asia
Rice-Feeding Insects of Tropical Asia B.M. Shepard, A.T. Barrion, and J.A. Litsinger 1995 IRRI INTERNATIONAL RICE RESEARCH INSTITUTE P.O. Box 933, Manila 1099, Philippines The International Rice Research Institute (IRRI) was established in 1960 by the Ford and Rockefeller Foundations with the help and approval of the Government of the Philippines. Today IRRI is one of 16 nonprofit international research centers supported by the Consultative Group on International Agricultural Research (CGIAR). The CGIAR is sponsored by the Food and Agriculture Organization of the United Nations (FAO), the International Bank for Reconstruction and Development (World Bank), and the United Nations Development Programme (UNDP). Its membership comprises donor countries, international and regional organizations, and private foundations. IRRI receives support, through the CGIAR, from a number of donors including African Development Bank, Arab Fund for Economic and Social Development, Asian Development Bank, Common Fund for Commodities, European Union, Ford Foundation, Inter-American Development Bank, International Development Research Centre, International Fund for Agricultural Development, OPEC Fund for International Development, Rockefeller Foundation, Sasakawa Foundation, UNDP, UNEP, World Bank, and the international aid agencies of the following governments: Australia, Austria, Belgium, Brazil, Canada, People’s Republic of China, Colombia, Côte d’Ivoire, Denmark, Egypt, Finland, France, Germany, India, Indonesia, Islamic Republic of Iran, Ireland, Italy, -
Katydids of the Genus Ewanella and of the Subgenus Megalotheca (Orthoptera: Tettigoniidae)
African Invertebrates Vol. 50 (2) Pages 435–446 Pietermaritzburg December, 2009 Katydids of the genus Ewanella and of the subgenus Megalotheca (Orthoptera: Tettigoniidae) Andrej V. Gorochov Zoological Institute, Russian Academy of Sciences, St Petersburg, 199034 Russia; [email protected] ABSTRACT Katydids of the genus Ewanella Naskrecki (Mecopodinae) and stick-like katydids of the genus Conoce- phalus Thunberg (Conocephalinae) are reviewed. The latter representatives are included in the subgenus Megalotheca Karny, stat. n., which was formerly considered a separate genus but is here reduced to a subgenus of Conocephalus. Three new species from South Africa are described: E. breviuscula sp. n., C. (M.) namibius sp. n., and C. (M.) zlobini sp. n. Identification keys to all species of Ewanella and Megalotheca are given. KEY WORDS: Orthoptera, Tettigoniidae, Mecopodinae, Conocephalinae, Ewanella, Conocephalus (Megalotheca), new species, Africa, Madagascar, identification keys. INTRODUCTION The status of both the superspecies taxa of katydids considered herein has been unclear until now. The genus Ewanella Naskrecki, 1994 (Mecopodinae: Aprosphylini) was described for a single species which resembles a small specialized species of the genus Aprosphylus Pictet, 1888. Following the author of Ewanella (Naskrecki 1994: 283), the differences between these genera are in size, coloration, and pronotal length only. The discovery of a second species of Ewanella provides support for Naskrecki’s idea of the separation of Ewanella from Aprosphylus. The former genus Megalotheca Karny, 1907 was considered to be closely related to the genus Conocephalus Thunberg, 1815 (Conocephalinae: Conocephalini) by Uvarov (1928). Gorochov and Llorente (2004) concluded that some species included by previous authors in Megalotheca are specialized stick-like representatives of Conocephalus. -
1 Basic Arthropod Taxonomy Arthropods Include the Insects, Spiders, Mites, Ticks, Ostracods, Copepods, Scorpions, Centipedes, Sh
Basic Arthropod Taxonomy Arthropods include the insects, spiders, mites, ticks, ostracods, copepods, scorpions, centipedes, shrimps, and crayfishes. Of these, insects make up > 50% of all the nominal species of organisms in the world. Insects and its allies or relatives whether pests or beneficials are part of rice ecosystems. Basic arthropod identification is important in ecological research to understand interactions, which are vital for developing better pest management tools and strategies. This manual will focus on: • Identification of different arthropod groups. • Identification of major diagnostic features of the most common and important arthropod orders, families and species especially insects and spiders in the rice agricultural landscape using taxonomic keys. • Handling and preserving arthropods for identification. Manual content Differences: Insects (Class Insecta) and Spiders (Class Arachnida, Order Araneae) Insects Spiders Body regions 3: head, thorax and abdomen 2: cephalothorax (fused head and thorax) and unsegmented abdomen Eyes 2-3 compound eyes and 0-8 (with some ground 3 ocelli or simple eyes dwellers having no eyes) Legs (no.) 3 pairs 4 pairs Wings Present Absent Antennae Present Absent Summary of Insect Orders and Families and Spider Families covered in this workshop Order Family Common name Common species Food habit Odonata Coenagrionidae Damselfly Agriocnemis Predator (flying femina femina insects and (Brauer) hoppers) 1 A. pygmaea Predator (flying (Rambur) insects and hoppers) Order Family Common name Common species Food habit Odonata Libellulidae Dragonfly Diplacodes Predator (stem trivialis (Drury) borers, leaffeeders and planthoppers) Orthoptera Tettigoniidae Long-horned Conocephalus Predator (rice grasshoppers longipennis (de bug, stem borers, Haan) and planthopper and leafhopper nymphs) Gryllidae Crickets Euscyrtus Pest concinnus (de Haan) Acrididae Short-horned Oxya spp. -
Integrative Taxonomy of the Endemic Karoo Agile Grasshoppers, the Euryphyminae
Integrative taxonomy of the endemic Karoo agile grasshoppers, the Euryphyminae by Precious Tshililo Thesis presented in fulfilment of the requirements for the degree of Master of Science in the Faculty of AgriSciences at Stellenbosch University Supervisor: Dr. Corinna Sarah Bazelet Co-supervisors: Dr. Pia Addison and Dr. Minette Karsten March 2018 Stellenbosch University https://scholar.sun.ac.za Declaration By submitting this thesis electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the sole author thereof (save to the extent explicitly otherwise stated), that reproduction and publication thereof by Stellenbosch University will not infringe any third party rights and that I have not previously in its entirety or in part submitted it for obtaining any qualification. Date: March 2018 Copyright © 2018 Stellenbosch University All rights reserved Stellenbosch University https://scholar.sun.ac.za Summary The Euryphyminae are a small, African subfamily of grasshoppers which are not very well known. They are endemic to sub-Saharan Africa and consist of 23 genera, 16 of which have records of occurrence in South Africa. They are extremely agile and difficult to either catch or spot. Morphologically they are adapted to arid regions. The aim of this study was to use an integrative taxonomy approach to fill gaps in knowledge relating to Euryphyminae taxonomy and diversity in the Karoo biome. I collected all Euryphyminae information from literature and digitized 626 museum specimens which had been positively identified. I also conducted two month-long sampling trips and collected 624 specimens of Euryphyminae in thirty sites across the southern Karoo biome. -
Research Article DIVERSITY and COMMUNITY STRUCTURE of ARTHROPODS on RICE PANICLE
International Journal of Agriculture Sciences ISSN: 0975-3710&E-ISSN: 0975-9107, Volume 10, Issue 6, 2018, pp.-5450-5453. Available online at http://www.bioinfopublication.org/jouarchive.php?opt=&jouid=BPJ0000217 Research Article DIVERSITY AND COMMUNITY STRUCTURE OF ARTHROPODS ON RICE PANICLE NAYAK A.1, BEHERA K.S.2* AND MOHAPATRA P.K.3 1Department of Zoology, Agalpur P.S. College, Roth, Balangir,767061, Sambalpur University, Sambalpur, 768019, Odisha, India 2Division of Crop Protection, ICAR - National Rice Research Institute, Cuttack, 753004, Odisha, India 3Department of Life Science, Sambalpur University, Sambalpur, 768019, Odisha, India *Corresponding Author: [email protected] Received: March 17, 2018; Revised: March 19, 2018; Accepted: March 20, 2018; Published: March 30, 2018 Abstract- A study was conducted in Balangir and Bargarh districts of Odisha during wet season on the popular rice varieties Swarna and Lalat during 2014 and 2015 to evaluate the diversity of different fauna visiting the panicle from flowering to maturing. Organisms were collected using sweep net method and visual observation. Overall, 126 species were observed that belonged to 110 genera, 40 families of insects, 8 families of spiders and 3 families of birds under 11 orders. Lepidopterans constituted the highest number species (21%) followed by the hymenopterans (18%), hemipterans (17%). Spiders represented only 10% of the species. Hemipterans were collected in highest number (223). Key words- rice, panicle, fauna, diversity, guild. Citation: Nayak A., et al., (2018) Diversity and Community Structure of Arthropods on Rice Panicle. International Journal of Agriculture Sciences, ISSN: 0975-3710 & E- ISSN: 0975-9107, Volume 10, Issue 6, pp.-5450-5453. -
Crickets of New Caledonia (Insecta, Orthoptera, Grylloidea): a Key to Genera, with Diagnoses of Extant Genera and Descriptions of New Taxa
Crickets of New Caledonia (Insecta, Orthoptera, Grylloidea): a key to genera, with diagnoses of extant genera and descriptions of new taxa Laure DESUTTER-GRANDCOLAS Institut de Systématique, Évolution et Biodiversité, ISYEB – UMR 7205 CNRS, MNHN, UPMC, EPHE, Muséum national d’Histoire naturelle, Sorbonne Universités, case postale 50, 57 rue Cuvier, F-75231 Paris cedex 05 (France) [email protected] Jérémy ANSO Institut de Systématique, Évolution et Biodiversité, ISYEB – UMR 7205 CNRS, MNHN, UPMC, EPHE, Muséum national d’Histoire naturelle, Sorbonne Universités, case postale 50, 57 rue Cuvier, F-75231 Paris cedex 05 (France) and Institut méditerranéen de Biodiversité et d’Écologie marine et continentale (IMBE), Aix-Marseille Université, UMR CNRS, IRD, UAPV, Centre IRD Nouméa, BP A5, 98848 Nouméa Cedex, (Nouvelle-Calédonie) Hervé JOURDAN Institut méditerranéen de Biodiversité et d’Écologie marine et continentale (IMBE), Aix-Marseille Université, UMR CNRS, IRD, UAPV, Centre IRD Nouméa, boîte postale A5, 98848 Nouméa Cedex (Nouvelle-Calédonie) Published on 30 December 2016 urn:lsid:zoobank.org:pub:9E796669-C345-42D6-B0F9-95288DB701EE Desutter-Grandcolas L., Anso J. & Jourdan H. 2016. — Crickets of New Caledonia (Insecta, Orthoptera, Grylloidea): a key to genera, with diagnoses of extant genera and descriptions of new taxa. Zoosystema 38 (4): 405-452. https:// doi.org/10.5252/z2016n4a1 ABSTRACT Crickets (Insecta, Orthoptera, Gryllidea) are amongst the most abundant and diverse insects in New Caledonia: 40 genera are recorded today from the Archipelago and 180 cricket species have been reported; 19 genera and more than 90% of the species are endemic. Owing to this diversity, crickets prove an interesting model to test evolutionary hypotheses about New Caledonia and its fauna. -
Laying the Foundations of Evolutionary and Systematic Studies in Crickets (Insecta, Orthoptera): a Multilocus Phylogenetic Analysis
Cladistics Cladistics 32 (2016) 54–81 10.1111/cla.12114 Laying the foundations of evolutionary and systematic studies in crickets (Insecta, Orthoptera): a multilocus phylogenetic analysis Ioana C. Chintauan-Marquiera,†,Frederic Legendrea,†, Sylvain Hugelb, Tony Robillarda, Philippe Grandcolasa, Andre Nela, Dario Zucconc and Laure Desutter-Grandcolasa,* aInstitut de Systematique, Evolution, Biodiversite, ISYEB - UMR 7205 CNRS, UPMC, EPHE, Museum national d’Histoire naturelle, Sorbonne Universites, CP 50, 45, rue Buffon, Paris 75005, France; bINCI, UPR3212 CNRS, Universite de Strasbourg, 21, rue Rene Descartes, Strasbourg F-67084, France; cService de Systematique Moleculaire, UMS2700 MNHN-CNRS, Departement Systematique et Evolution, Museum national d’Histoire naturelle, Paris Cedex 05, France Accepted 27 January 2015 Abstract Orthoptera have been used for decades for numerous evolutionary questions but several of its constituent groups, notably crickets, still suffer from a lack of a robust phylogenetic hypothesis. We propose the first phylogenetic hypothesis for the evolu- tion of crickets sensu lato, based on analysis of 205 species, representing 88% of the subfamilies and 71% tribes currently listed in the database Orthoptera Species File (OSF). We reconstructed parsimony, maximum likelihood and Bayesian phylogenies using fragments of 18S, 28SA, 28SD, H3, 12S, 16S, and cytb (~3600 bp). Our results support the monophyly of the cricket clade, and its subdivision into two clades: mole crickets and ant-loving crickets on the one hand, and all the other crickets on the other (i.e. crickets sensu stricto). Crickets sensu stricto form seven monophyletic clades, which support part of the OSF fami- lies, “subfamily groups”, or subfamilies: the mole crickets (OSF Gryllotalpidae), the scaly crickets (OSF Mogoplistidae), and the true crickets (OSF Gryllidae) are recovered as monophyletic.