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Geographical variation of prementum size in Iberian Cordulegaster boltonii (Odonata: Cordulegastridae) populations Int. J. Odonatol. (IF 0.9) Pub Date : 2022-03-14 M. Ángeles Hernández,Patricia Casanueva,Luisa Nunes,Tomás Santamaría,Luis Fernando Sánchez-Sastre,Manuel Ferreras-Romero,Francisco Campos
Within wide geographical areas, Odonata populations can show biometric differences as a consequence of both biotic (e.g., predation, competition) and abiotic factors (mainly temperature). These differences can occur in the larval stage, although reliable characters are needed to detect differences. We analyzed whether Cordulegaster boltonii larvae from 18 Iberian populations differ regarding head width
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Evidence for widespread gene flow and migration in the Globe Skimmer dragonfly Pantala flavescens Int. J. Odonatol. (IF 0.9) Pub Date : 2022-03-11 Jessica Ware,Manpreet Kaur Kohli,Ciara Mae Mendoza,Daniel Troast,Hiroshi Jinguji,Keith A. Hobson,Göran Sahlén,R. Charles Anderson,Frank Suhling
The global population structure and dispersal patterns of Pantala flavescens (Fabricius, 1798) are evaluated using a geographically extensive mitochondrial DNA dataset, a more limited samples of nuclear markers, wing isotopic (δ²H) data and a literature review. No spatial or temporal haplotype structure was recovered between the samples. Isotope data suggest that most samples were immigrants at the
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Effects of urbanization on Odonata assemblages in tropical island streams in San Juan, Puerto Rico Int. J. Odonatol. (IF 0.9) Pub Date : 2022-02-28 Norman Maldonado-Benítez,Ashley Mariani-Ríos,Alonso Ramírez
Urbanization has considerable impacts on stream ecosystems. Streams in urban settings are affected by multiple stressors such as flow modifications and loss of riparian vegetation. The richness and abundance of aquatic insects, such as odonates, directly reflect these alterations and can be used to assess urban impacts on streams. The effects of urbanization on odonate richness and abundance on tropical
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Rhapsody in emerald: phylogenetic framework for Lestidae with reference to the systematic position of Chalcolestes Kennedy Int. J. Odonatol. (IF 0.9) Pub Date : 2022-01-11 Thomas J. Simonsen,Marcus Glahder,Thomas Pape,Kent Olsen,Marie Djernæs
We reconstruct a phylogenetic framework for the zygopteran family Lestidae based on a molecular dataset comprised of sequence data from the genes COI, 16S, 18S, 28S, and ITS1+2 from 41 ingroup taxa and 8 outgroup taxa with emphasis on the systematic position of the genus Chalcolestes Kennedy. We recover Lestidae as monophyletic with good statistical support. The family falls into two subequal clades
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Habitat conditions in streams influence Odonata larval assemblages in the eastern Amazon Int. J. Odonatol. (IF 0.9) Pub Date : 2022-01-11 Rodrigo Arison Barbosa Ribeiro,Leandro Juen,Leandro Schlemmer Brasil
The growth of agricultural and mining activities in the Amazon has impacted land-use and caused significant changes in the local environmental conditions of streams. In the face of these changes, our study aimed at assessing how environmental changes affect Odonata larval assemblages in streams in the eastern Amazon. We hypothesized that habitat conditions in streams are strong predictors of Odonata
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Description of the larva of Vestalis gracilis (Rambur, 1842) (Zygoptera: Calopterygidae) from Thailand Int. J. Odonatol. (IF 0.9) Pub Date : 2022-01-10 Kaewpawika Rattanachan,Narumon Sangpradub,Tosaphol Saetung Keetapithchayakul
Vestalis gracilis (Rambur, 1842) is a forest stream damselfly belonging to the family Calopterygidae. Its last-stadium larvae and exuviae are described and illustrated based on laboratory-raised specimens from Thailand, and observations of agonistic behavior are provided. The taxonomical characters of V. gracilis larvae are similar to those of V. amoena. They exhibit synapomorphic characters such as
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To harass or to respect: the economy of male persistence despite female refusal in a damselfly with scramble mate competition Int. J. Odonatol. (IF 0.9) Pub Date : 2022-01-10 Mingzi Xu,Ola M. Fincke
In sexual conflict, males are often thought to gain fitness benefits from harassing females over mating. Yet when harassment itself incurs costs to males and if alternative, receptive females are available in a local population, theory predicts that when confronted with a female refusal, a male’s choice of persisting or retreating is determined in part by the likelihood of achieving a mating. We tested
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Demographic Traits and Behavior of Hetaerina cruentata (Odonata: Calopterygidae) in Ecosystems of the Andean Region of Colombia Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 María Vianney García-Monsalve,Mariano Altamiranda-Saavedra,Fredy Palacino Rodríguez,Adolfo Cordero-Rivera
Demography and territorial behavior of Hetaerina cruentata was studied along three lowland streams located at Norte de Santander department in the Colombian Andean region. Adult damselflies (N: 278) were individually marked, and using their recapture histories we estimated survival, longevity, sex ratio, age groups and population size at each location. We found no evidence for survival differences
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Forest edges and their effects on the arrival of dragonflies at north-temperate experimental ponds Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Laís M. S. N. Leite,Sarah K. French,Christopher A. Searcy,Shannon J. McCauley
The matrix, an environment in the landscape that individuals move through but do not reside in, can affect species dispersal and the arrival of individuals at habitat patches. Elements around this matrix that provide refuge or resources may shape the arrival of animals at habitat patches, even when those patches are equivalent in quality. Adult dragonflies (Odonata: Anisoptera) frequently use open
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Inpabasis intermedia, a new species of damselfly from Peru (Odonata: Coenagrionidae); with an illustrated key to all known Inpabasis-species Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Tim Faasen
Inpabasis intermedia sp. n. (holotype ♂: Peru, Loreto Región) is described and illustrated. An illustrated key to both sexes is given for all members of the genus. Males of I. intermedia can be distinguished from its congeners by the angled division laterally between dark and light areas of the pterothorax, by the short unbranched paraprocts and rounded cerci which bear only a small apical tooth and
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Description of Coeliccia diehlae sp. n. from the Central Highlands of Vietnam with keys to the males and females of the pyriformis-group (Odonata: Zygoptera: Platycnemididae) Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Quoc Toan Phan,Anh Phong Bui
Description of Coeliccia diehlae sp. n. from the Central Highlands of Vietnam with keys to the males and females of the pyriformis-group (Odonata: Zygoptera: Platycnemididae) Coeliccia diehlae sp. n. (holotype male from Ko Roong Commune, Ka Bang District, Gia Lai Province, Central Highlands of Vietnam, deposited in the Zoological Collection of Duy Tan University) is described based on both sexes. This
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Description of last instar larvae of Ceratogomphus triceraticus Balinsky, 1963 and C. pictus Hagen in Selys, 1854 (Odonata: Gomphidae) Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Ole Müller,Stefan Kohl,Frank Suhling,Hansruedi Wildermuth
The final instar larvae of the two species of the southern African gomphid genus Ceratogomphus, the South African endemic C. triceraticus and the more widespread C. pictus, are compared based on exuviae. Main differences are the shapes of the prementum and of the last abdominal segments, giving C. pictus a more slender and pointed appearance. Ceratogomphus triceraticus is slightly larger and on average
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A scientometric analysis on pre- and post-copulatory traits in Odonata Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Gabrielle Cristina Pestana,Erick Mateus-Barros,Leandro Schlemmer Brasil,Rhainer Guillermo-Ferreira
In the last decades, studies on sexual selection in odonates have shown a relationship between mating success and costly sexual ornaments, mainly male characters. Here, we conducted a scientometric analysis to assess the state of art of studies on sexual selection in odonates, especially on the role of male ornamentation (pre-copulatory traits) and sperm competition (post-copulatory traits). We found
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Description of the final instar larva of Cephalaeschna risi Asahina, 1981 with notes on its semi-terrestrial lifestyle (Odonata: Aeshnidae) Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Fang-Shuo HU,Tsung-Wei CHAN,Lung-Chun HUANG,I-Lung LEE
The final instar larva of Cephalaeschna risi Asahina, 1981 is described for the first time based on material from Taiwan. In Taiwan, the larva of C. risi can be separated from other aeshnid larvae by its relatively short antennae and presence of small protuberances on the legs. Diagnostic characters to distinguish it from other known larvae of Cephalaeschna are also discussed. A comprehensive description
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Odonata species diversity, distributions, and status in a rare sand prairie-savanna wetscape Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Jason T. Bried
Inland sand areas scattered across the North American eastern deciduous forest and western tallgrass prairie ecotone are known for supporting pyrogenic early-successional vegetation and specially adapted terrestrial faunas. Many of these globally and regionally rare systems contain functionally connected wetland networks (“wetscapes”) potentially important for aquatic insects. Sampling adults, nymphs
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Odonate ethodiversity as a bioindicator of anthropogenic impact Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Rhainer Guillermo-Ferreira,Leandro Juen
The increasing use of dragonflies and damselflies as models in studies on biodiversity in the last decades has unraveled several features of natural processes and mechanisms for species conservation. Nevertheless, biodiversity is a polysemic concept that resolves multiple dimensions that, together, enroll what we observe as species and lineages diversity. One of these dimensions is Ethodiversity, which
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Isolation and characterization of 10 polymorphic microsatellite loci in the rarest European damselfly, Coenagrion hylas (Odonata: Coenagrionidae) Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 M. Landmann,M. Schilling,A. Landmann,F. M. Steiner,B. C. Schlick-Steiner
Within Europe, the damselfly Coenagrion hylas has a very limited distribution and is regarded as a vulnerable species. For studying migration and population connectivity in the Central European populations, 10 microsatellite markers were developed for this species. The loci were screened on 24 individuals collected at Lech valley, Tyrol, Austria. The values for expected and observed heterozygosity
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Odonata (Insecta) communities along an elevational gradient in the Atlantic forest of southeastern Brazil, with the description of the female of Heteragrion mantiqueirae Machado, 2006 Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 G. Stefani-Santos,W.F. Ávila Jr,M.A. Clemente,N.R. Henriques,A.S.B. Souza,D.S. Vilela,M.M. Souza
Despite the important role of the order Odonata in ecosystems, there is a lack of information about dragonfly communities in several regions, high elevation sites, and environmentally protected areas in Minas Gerais State, Brazil. Our objective was to assess the abundance and richness of dragonfly and damselfly communities along an elevational gradient in the Atlantic Forest,southeastern Brazil. This
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The life cycle of Orthemis ferruginea (Fabricius, 1775) (Odonata: Libellulidae) Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Diana E. Carrillo-Lara,Rodolfo Novelo-Gutiérrez
The complete life cycle of O. ferruginea is described for the first time, represent the first complete life cycle described for an odonate in Mexico. The 17 larval instars obtained are described and illustrated in detail, from prolarva through F-0. Two egg batches of different females were obtained in the field and were subsequently reared in the laboratory. Eggs and larvae of the batches were raised
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Partial submergence: An undescribed behavioral adjustment for thermoregulation at high ambient temperature in Aeshnidae Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Pierre Deviche
Many insects including odonates thermoregulate using a combination of behavioral and physiological mechanisms. At high ambient temperature (Ta), these mechanisms include decreased heat production and increased heat loss. Heat production can be reduced by decreasing activity. Heat loss can be enhanced by perching in a shaded microhabitat where temperature is cooler than in the surrounding environment
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Environmental variables affect the diversity of adult damselflies (Odonata: Zygoptera) in western Amazonia Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Joás Brito,Lenize Calvao,Erlane Cunha,Leandro Maioli,Mayla Barbirato,Samir Rolim,Leandro Juen
Our study evaluated the effects of environmental variables on the assemblages of the suborder Zygoptera, and tested the hypothesis that environmental variables are more important determinants of the structure of these assemblages than limnological variables in streams. We sampled 17 streams in the Carajás National Forest and tested our hypothesis using a linear regression analysis, with the zygopteran
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Community assembly of adult odonates in lacustrine systems of an understudied world heritage site of south-eastern Zimbabwe Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Kudzai Mafuwe,Edwin Tambara,Fortunes F. Matutu,Cedric Maforimbo,Joshua Tsamba,Cynthia Mapendere,Sydney Moyo
Odonata (dragonflies and damselflies) are efficacious for management and conservation efforts in freshwaters. In recent times, increased effort has gone into enhancing awareness, data and information on dragonflies among scientists and policymakers. Here, we examined the Odonata community of dams within the Matobo National Park, a world heritage site in southern Zimbabwe. Specifically, we determined
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The importance of tropical mountain forests for the conservation of dragonfly biodiversity: A case from the Colombian Western Andes Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Cornelio A. Bota-Sierra,Camilo Flórez-V,Federico Escobar,Juliana Sandoval-H.,Rodolfo Novelo-Gutiérrez,Gustavo A. Londoño,Adolfo Cordero-Rivera
Forests have been widely recognized as key habitats for odonate (dragonflies and damselflies) biodiversity, but the importance of forests for holding odonate biodiversity remains understudied in tropical mountains, one of the most diverse ecosystems on the planet. Here we described the odonate assemblage composition along the elevation gradient in the Tatamá Mountains (Colombian Cordillera Occidental)
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Environmental impacts from human activities affect the diversity of the Odonata (Insecta) in the Eastern Amazon Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 R. C. Bastos,Joás Brito,Erlane Cunha,G. M. Cruz,J. L. S. Pereira,J. Vieira,Leandro Juen
Land use influences the biodiversity of stream systems by changing the chemical composition of the water and the physical structure of the habitat. The present study evaluated the influence of these processes on the diversity metrics of Odonata at regional and local scales, testing the hypothesis that the two odonate suborders Anisoptera and Zygoptera will respond differently to habitat and landscape
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A tale of two Skimmers: complex relationships between DNA barcodes, distributions and taxonomy in European Orthetrum cancellatum and O. coerulescens Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Thomas J. Simsonsen,Marie Djernæs,Ole Fogh Nielsen,Kent Olsen
We explore the genetic diversity and phylogeography of the dragonflies Orthetrum cancellatum and O. coerulescens in Europe based on mitochondrial and nuclear DNA. Orthetrum cancellatum has a clear division between a group comprising Maltese, Italian, and central and northern European populations, and a group comprising mainly populations from southwestern and southeastern Europe, as well as some northern
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Macromia weerakooni sp. nov. (Odonata: Anisoptera: Macromiidae), a new dragonfly species from Sri Lanka Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Amila Prasanna Sumanapala
The genus Macromia is represented in Sri Lanka by two endemic species. In this paper a third presumed endemic species is described based on a single male specimen collected at Kirikitta, Weliweriya, Western Province in the low country wet zone of the country. Macromia weerakooni sp. nov. differs from its congeners in Sri Lanka by having turquoise blue eyes, an entirely black labrum, a short yellow
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Lost in Time: Re-description and Ecological Re-assessment of two Indian Endemic Elattoneura Cowley, 1935 (Playcnemidiae) Damselflies Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Pankaj Koparde,Sridhar Halali,Ashish Tiple,Parag Ranganekar,Amol Sonawane,Arajush Payra,Prosenjit Dawn,Ashwini Raju,K.A. Subramanian
The Indian Elattoneura are a difficult group to identify due to their extreme morphological similarity and sparse information in identification keys and on geographical distribution. The ambiguity is prominent among two Peninsular Indian Elattoneura species, E. nigerrima (Laidlaw, 1917) and E. tetrica (Laidlaw, 1917), described a hundred years ago. Both species were described based on male specimens
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Useful biometric variables in Iberian exuviae of Boyeria irene (Fonscolombe, 1838) (Odonata: Aeshnidae) Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Luisa Nunes,Patricia Casanueva,Tomás Santamaría,María Á. Hernandez,Francisco Campos
In species of similar shape and size, biometric analyses make it possible to establish differences. Within one species, biometrics can help researchers to detect differences between populations and analyze their adaptations to environmental conditions. Until now little was known about the biometrics of the Iberian populations of Boyeria irene (Odonata: Aeshnidae), a large species living mainly in southern
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Description of the final stadium larva of Calicnemia sinensis Lieftinck, with discussion of the larval characters of genus Calicnemia Strand (Odonata: Zygoptera: Platycnemididae) Int. J. Odonatol. (IF 0.9) Pub Date : 2021-01-01 Qi-han XU
The final stadium larva of Calicnemia sinensis Lieftinck is described and illustrated in detail. It is characterized by (1) palpal lobe of prementum with two end hooks of unequal size, the inner longer and sharper, and the outer shorter and stouter; (2) inner side of palpal lobe with five long setae above and two or three short ones below; (3) wing sheaths parallel to each other, reaching beyond the
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Distribution, autecology, genetic characterization, and conservation of the Western Mediterranean endemic dragonfly Orthetrum nitidinerve (Selys, 1841): insights from Italy Int. J. Odonatol. (IF 0.9) Pub Date : 2020-10-01 Giacomo Assandri, Gaia Bazzi, Davide Maggioni, Andrea Galimberti, Bernd Kunz
Aquatic macroinvertebrates are a primary component of freshwater ecosystems and one of the most threatened by anthropogenic pressures. Among them, dragonflies are a charismatic group of growing scientific and social interest. However, little is known about the natural history of several species. One paradigmatic example is the declining Orthetrum nitidinerve, a Western Mediterranean endemic anisopteran
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Odonata drift: a reassessment Int. J. Odonatol. (IF 0.9) Pub Date : 2020-09-30 Robert B. DuBois
More than 400 scientific journal articles and gray literature reports that addressed macroinvertebrate drift were reviewed and 63 articles were found that reported on the natural drift of Odonata at some taxonomic level. Forty-three species and 44 genera within 15 families (nine Zygoptera; six Anisoptera) were documented in the drift. Drift of another 13 species and eight genera was inferred from indirect
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Forcepsioneura machadorum (Coenagrionidae: Protoneurinae) sp. nov. from the Cerrado Biome of Minas Gerais, southeastern Brazil Int. J. Odonatol. (IF 0.9) Pub Date : 2020-09-29 Diogo Silva Vilela, Henrique Venâncio, Jean Carlos Santos
The Neotropical genus Forcepsioneura is composed of 11 species that inhabit almost exclusively the Brazilian Atlantic Forest domain, with F. sancta (Hagen in Selys, 1860) being the only species of this genus known to occur in the Cerrado biome. Here we describe a new species of Forcepsioneura from the Cerrado of Minas Gerais State, Brazil. This new species is morphologically closer to F. sancta and
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Descriptions of the last instar larvae of two species of Megalestes Selys from Yunnan, China (Odonata: Zygoptera: Synlestidae) Int. J. Odonatol. (IF 0.9) Pub Date : 2020-08-20 Guo-Hui Yang, Qing Liu
The final stadium larvae of Megalestes micans Needham, 1930 and M. kurahashii Asahina, 1985 are described and illustrated from Yunnan Province, China, and a key to the known larvae of seven species of the genus Megalestes is provided. All exuviae will be stored at the Invertebrate Collection of the College of Agriculture and Life Sciences, Dali University, Dali, Yunnan, China. http://www.zoobank.org/urn:lsid:zoobank
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New records of polymorphism in Asian Libellulid dragonflies (Insecta: Odonata) Int. J. Odonatol. (IF 0.9) Pub Date : 2020-08-17 Shantanu Joshi, Nancy van der Poorten, Amila Sumanapala, Erland Nielsen, Jenis Patel, Bo Nielsen, Dattaprasad Sawant, Muhamed Sherif
Polymorphism has rarely been reported from dragonflies of the Libellulidae (Odonata: Anisoptera) family. Here, we report female-limited polymorphism in females of five species of the Libellulidae and a gynandromorph male of Brachythemis contaminata from South Asia. We describe the morphological variation between andromorph and heteromorph females, and collate records of andromorph females from various
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New records of polymorphism in Asian Libellulid dragonflies (Insecta: Odonata) Int. J. Odonatol. (IF 0.9) Pub Date : 2020-08-17 Shantanu Joshi, Nancy van der Poorten, Amila Sumanapala, Erland Nielsen, Jenis Patel, Bo Nielsen, Dattaprasad Sawant, Muhamed Sherif
Polymorphism has rarely been reported from dragonflies of the Libellulidae (Odonata: Anisoptera) family. Here, we report female-limited polymorphism in females of five species of the Libellulidae and a gynandromorph male of Brachythemis contaminata from South Asia. We describe the morphological variation between andromorph and heteromorph females, and collate records of andromorph females from various
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Determinants of adult odonate community structure at several spatial scales: effects of habitat type and landscape context Int. J. Odonatol. (IF 0.9) Pub Date : 2020-08-11 Wade B. Worthen, Mara G. Chamlee
Dragonflies (Insecta: Odonata) use both aquatic and terrestrial ecosystems, and the abundance and diversity of odonates should be good indicators of habitat integrity. To determine which environmental variables affect odonates, we sampled adult dragonflies three times at 12 sites in Pickens and Greenville Counties, SC, USA, in different habitats, at different spatial scales, across a landscape gradient
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Odonate fauna (Insecta: Odonata) from a locality in San Marcos River in the Sierra Norte of Puebla, Mexico Int. J. Odonatol. (IF 0.9) Pub Date : 2020-07-27 J.D. Silva-Hurtado, J. Márquez, J.A. Escoto-Moreno, A.P. Martínez-Falcón
Odonates have been recognized as an important group for evaluating ecosystems since they are used as bioindicators of the conservation status of the habitat they occupy, in addition to being generalist predators feeding on invertebrates and small vertebrates. In this work, the biodiversity of adult odonates from a locality near the San Marcos River, in Puebla, Mexico, is analyzed through systematic
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New records of the Paleotropical migrant Hemianax ephippiger in the Caribbean and a review of its status in the Neotropics Int. J. Odonatol. (IF 0.9) Pub Date : 2020-07-27 Johanna Hedlund, Eva Ehrnsten, Christina Hayward, Philipp Lehmann, Alex Hayward
Tropical America is currently experiencing the establishment of a new apex insect predator, the Paleotropical dragonfly Hemianax ephippiger (Odonata: Aeshnidae). H. ephippiger is migratory and is suggested to have colonised the eastern Neotropics by chance Trans-Atlantic displacement. We report the discovery of H. ephippiger at three new locations in the Caribbean, the islands of Bonaire, Isla de Coche
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Congruence of the composition of Odonata between dry and rainy seasons in the Maranhense Cerrado Int. J. Odonatol. (IF 0.9) Pub Date : 2020-07-14 Lucas Pereira Moura, Sheyla Regina Marques Couceiro, Leandro Juen, Daniel Silas Veras
Nos riachos tropicais a sazonalidade tem forte influência sobre a heterogeneidade, alterando os recursos disponíveis e ocasionando o carreamento de organismos, substrato e matéria orgânica. Provocando mudanças nas variáveis limnológicas, bem como na composição de espécies. O objetivo de nosso trabalho foi avaliar a congruência de resposta da comunidade de Odonata em duas estações sazonais em riachos
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Guide to the Odonata of central Ñeembucú, Paraguay: indicator species of wetland habitats Int. J. Odonatol. (IF 0.9) Pub Date : 2020-07-02 Jeremy Kenneth Dickens, Daniel Schoenberger, Michelle VanCompernolle
The department of Ñeembucú, in south-western Paraguay, is home to the virtually unexplored Ñeembucú Wetlands, the second largest wetland system in the country, representing a major gap in biodiversity knowledge. As organisms ubiquitous with wetlands, the Odonata, or dragonflies (Anisoptera) and damselflies (Zygoptera), have the potential to be effective indicators of wetland habitats in the face of
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The subfamily Platycnemidinae (Zygoptera: Platycnemididae) in Thailand, with description of the final stadium larva of Copera chantaburii Asahina, 1984 Int. J. Odonatol. (IF 0.9) Pub Date : 2020-06-18 Tosaphol Saetung, Noppadon Makbun, Michel Sartori, Boonsatien Boonsoong
Within the damselfly subfamily Platycnemidinae, eight species are currently recognized in South-East Asia. The final stadium larvae of only three of them have been so far described. The final stadium larva of Copera chantaburii is described and illustrated for the first time, based on reared specimens, and new provincial records both of larvae and adults of C. chantaburii are also provided. The larva
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Dragonfly (Odonata) community structure in the Eastern Highlands Biodiversity Hotspot of Zimbabwe: potential threats of land use changes on freshwater invertebrates Int. J. Odonatol. (IF 0.9) Pub Date : 2020-06-17 Kudzai Mafuwe, Sydney Moyo
We examined the diversity and potential drivers of dragonfly distribution in a biodiversity hotspot of Southern Africa (Eastern Highlands, Zimbabwe) by surveying 30 sites (13 lentic and 17 lotic habitats) located within this region. Additionally, we identified the anthropogenic factors that may threaten Odonata diversity and abundance. Our results revealed that 27 odonate species are associated with
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Dragonfly (Odonata) community structure in the Eastern Highlands Biodiversity Hotspot of Zimbabwe: potential threats of land use changes on freshwater invertebrates Int. J. Odonatol. (IF 0.9) Pub Date : 2020-06-17 Kudzai Mafuwe, Sydney Moyo
We examined the diversity and potential drivers of dragonfly distribution in a biodiversity hotspot of Southern Africa (Eastern Highlands, Zimbabwe) by surveying 30 sites (13 lentic and 17 lotic habitats) located within this region. Additionally, we identified the anthropogenic factors that may threaten Odonata diversity and abundance. Our results revealed that 27 odonate species are associated with
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On the firing line – interactions between hunting frogs and Odonata Int. J. Odonatol. (IF 0.9) Pub Date : 2020-06-16 Georg Rüppell, Dagmar Hilfert-Rüppell, Beat Schneider, Hanna Dedenbach
Frogs are important predators of Odonata. We investigated frogs catching Odonata prey by means of slow-motion filming in the field in order to understand the prey–predator interactions. In particular, we aimed to analyse kinematics of captures, and of Odonata fleeing, through evaluation of frame-by-frame filming; 122 (20%) of 613 events were analysed. While dragonflies were ovipositing, frogs were
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A description of the final stadium larva of Calicnemia gulinensis Yu & Bu, 2008 (Odonata: Platycnemididae) Int. J. Odonatol. (IF 0.9) Pub Date : 2020-04-02 Xueyi Chen, Xin Yu
The final stadium larva of Calicnemia gulinensis is described here for the first time. The larva can be distinguished from other known species of the genus Calicnemia by the arrangement of setae on premental edges and the number of setae on labial palpi. The important morphological characters of the caudal gills and the possible functional adaptation are discussed briefly.
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The Odonata of Argentina: state of knowledge and updated checklist Int. J. Odonatol. (IF 0.9) Pub Date : 2020-04-02 F. Lozano, A. del Palacio, L. Ramos, J. Muzón
An updated checklist of the 282 species of Odonata known to occur in Argentina is presented along with distributional information by province and ecoregion. Ten new records for the country and 87 new provincial records are provided. At present, 17 species of Odonata are considered endemic to Argentina, and distribution maps for each of them are provided. Information on larvae and conservation status
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First description of the larva of Psaironeura, based on specimens of P. angeloi from Costa Rica (Odonata: Coenagrionidae: Protoneurinae), with a key to the genera of Central American Protoneurinae Int. J. Odonatol. (IF 0.9) Pub Date : 2020-04-02 Jareth Román-Heracleo, Rodolfo Novelo-Gutiérrez, Monika Springer
The larva of Psaironeura is formally described for the first time, based upon reared specimens of Psaironeura angeloi from the Tirimbina Biological Reserve, Sarapiquí, Heredia Province, Costa Rica. Detailed illustrations are also provided. The larva is characterized by a slender dark brown body, premental setae 2+1, six palpal setae, male cerci globose, and caudal lamellae markedly slender, 3.5–4 times
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Ecology of Mesamphiagrion laterale (Odonata: Coenagrionidae): abundance, reproduction and interactions with co-occurring species Int. J. Odonatol. (IF 0.9) Pub Date : 2020-04-02 Fredy Palacino-Rodríguez, Mariano Altamiranda-Saavedra, Diego Andrés Palacino, Andrea Carolina Penagos
The behavior of Mesamphiagrion laterale (Selys, 1876) is described based upon 2430 hours of observation. A total of 2820 individuals were observed for 270 days from 2014 to 2015 using mark-recapture. Probabilities of resight, highest reproductive activity, time-perch and time of perch-temperature were statistically analyzed. Mesamphiagrion laterale is not a territorial species, the individuals perch
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Flying activity and population dynamics of Cordulegaster heros Theischinger, 1979 (Insecta: Odonata: Cordulegastridae) in Slovakia Int. J. Odonatol. (IF 0.9) Pub Date : 2020-04-02 Attila Balázs, Zdeněk F. Fric, Otakar Holuša
In 2017, we investigated the population dynamics and flying activity of the south-east European endemic dragonfly species Cordulegaster heros Theischinger, 1979. This research was conducted in the southern part of Central Slovakia in the Revúcka vrchovina Upland at a submountainous stream called Drienok. The mark-release-recapture method was applied to study the population. Cordulegaster heros was
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Hiding among traps? Mortality of early instar odonate larvae in the presence of bladderwort plants Int. J. Odonatol. (IF 0.9) Pub Date : 2020-03-02 Sandra Manasov, Frank Suhling
We investigated the effects of the presence of bladderwort plants on survival of early instar larvae of one coenagrionid and two libellulids in laboratory experiments. In all three species survival was reduced compared to treatments with a non-carnivorous submerged plant, with effective mortality that could be related to bladderwort being 19–45% dependent on the prey species. Individuals of all species
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Development and validation of microsatellite markers for an endangered dragonfly, Libellula angelina (Odonata: Libellulidae), with notes on population structures and genetic diversity Int. J. Odonatol. (IF 0.9) Pub Date : 2020-01-20 Min Jee Kim, Jong Seok Kim, Sung-Soo Kim, Iksoo Kim
The Bekko Tombo, Libellula angelina Selys, 1883 (Odonata: Libellulidae), is listed as an endangered species in South Korea, and is classified as a critically endangered species by the International Union for Conservation of Nature (IUCN). An assessment of the genetic diversity and population relationships of the species by molecular markers can provide the information necessary to establish effective
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Rapid acceleration in Odonata flight: highly inclined and in-phase wing beating Int. J. Odonatol. (IF 0.9) Pub Date : 2020-01-02 Georg Rüppell, Dagmar Hilfert-Rüppell
Acceleration manoeuvres in free flight in nature of five damselfly (Zygoptera) and four dragonfly (Anisoptera) species were analysed by means of slow motion filming. Changes in stroke frequencies, stroke angles, stroke directions, angles of inclination of the wings, and the phase-relationship of fore- and hindwings were recorded during acceleration. Damselflies and dragonflies showed similar actions
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Aerodynamic interference depends on stroke plane spacing and wing aspect ratio in damselfly model wings Int. J. Odonatol. (IF 0.9) Pub Date : 2020-01-02 Fritz-Olaf Lehmann, Henja-Niniane Wehmann
The fluid dynamics of aerodynamic force control in insects depends on how oscillating wings interact with the surrounding air. The resulting flow structures are shaped by the flow induced by the wing’s instantaneous motion but also on flow components resulting from force production in previous wing strokes and the motion of other wings flapping in close proximity. In four-winged insects such as damsel-
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Recent progress on the flight of dragonflies and damselflies Int. J. Odonatol. (IF 0.9) Pub Date : 2020-01-02 Toshiyuki Nakata, Per Henningsson, Huai-Ti Lin, Richard J. Bomphrey
Remarkable flight performance is key to the survival of adult Odonata. They integrate varied three-dimensional architectures and kinematics of the wings, unsteady aerodynamics, and sensory feedback control in order to achieve agile flight. Therefore, a diverse range of approaches are necessary to understand their flight strategy comprehensively. Recently, new data have been presented in several key
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Dragonfly flight: morphology, performance and behaviour Int. J. Odonatol. (IF 0.9) Pub Date : 2020-01-02 Robin Wootton
Odonata flight performance capabilities and behaviour and their body and wing form diversity are explored, and their interrelationships discussed theoretically and from observational evidence. Overall size and particularly wing loading appear predictably to be related to speed range. In Anisoptera at least, relatively short bodies and long wings should favour high speed manoeuvrability, though further
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How do dragonfly wings work? A brief guide to functional roles of wing structural components Int. J. Odonatol. (IF 0.9) Pub Date : 2020-01-02 H. Rajabi, S.N. Gorb
Insect wings have no flight muscles, except those situated in the thorax. However, they continuously respond to forces acting on them during flight. This ability is achieved by the specialised design of the wings and plays a key role in their aerodynamic performance. Dragonfly (Anisoptera) wings represent an extreme example of this automatic shape control among flying insects. The functionality of
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A brief review of Odonata in mid-Cretaceous Burmese amber Int. J. Odonatol. (IF 0.9) Pub Date : 2020-01-02 Daran Zheng, Edmund A. Jarzembowski
Odonatans are rare as amber inclusions, but quite diverse in Cretaceous Burmese amber. In the past two years, over 20 new species have been found by the present authors after studying over 250 odonatans from 300,000 amber inclusions. Most of them have now been published, and here we provide a brief review. Three suborders of crown Odonata have been recorded, including the damselfly families or superfamilies
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History of dragonfly flight Int. J. Odonatol. (IF 0.9) Pub Date : 2020-01-02 R.J. Rowe
From their earliest appearance in the fossil record, dragonflies have clearly taken a different approach to flight than other insect groups. Even the superficially similar Neuroptera do not fly like dragonflies. Flight specialisation has enabled dragonflies to occupy a range of niches, as specialised predators of flying insects, for around 300 My.
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Charlie Ellington (1952-2019) – a career in animal flight mechanics Int. J. Odonatol. (IF 0.9) Pub Date : 2020-01-02 Robin Wootton
Charles Porter Ellington was born on December 31st 1952 in the State of Maryland, grew up there and in the State of Georgia, and gained his first degree at Duke University, North Carolina, all in the USA. Under the leadership of Steven Vogel and Stephen Wainwright, Duke at that time was the hub of biomechanics in the USA, and several of Charlie’s near contemporaries went on to establish influential
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Dragonfly flight: a Symposium from the 2017 International Congress of Odonatology held at Clare College, Cambridge Int. J. Odonatol. (IF 0.9) Pub Date : 2020-01-02 Richard Rowe
At the 2017 International Congress of Odonatology the opportunity was taken to present a half day symposium on dragonfly flight. This symposium was organised to honour the fundamental contributions to investigations into insect flight made over more than three decades by Charles Ellington, at a Congress being held at his home institution. We were honoured that Charlie was able to attend our Symposium