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https://www.readbyqxmd.com/read/28071812/recovery-of-aquatic-insect-mediated-methylmercury-flux-from-ponds-following-drying-disturbance
#1
Matthew M Chumchal, Ray W Drenner, Frank M Greenhill, James H Kennedy, Ashlyn E Courville, Charlie A A Gober, Luke O Lossau
Small ponds exist across a permanence gradient and pond permanence is hypothesized to be a primary determinant of insect community structure and insect-mediated methylmercury (MeHg) flux from ponds to the surrounding terrestrial landscape. Here we present the first experiment examining the recovery of insect-mediated MeHg flux following a drying disturbance that converted permanent ponds with insectivorous fish to semi-permanent ponds without fish. We used floating emergence traps to collect emergent insects for 10 weeks in the spring and summer from five ponds with fish (permanent) and five ponds that were drained to remove fish, dried and refilled with water (semi-permanent)...
January 10, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28030346/new-records-of-host-parasite-relationships-between-coenagrion-scitulum-rambur-1842-odonata-and-water-mite-larvae-hydrachnidia-in-core-and-edge-host-populations
#2
Andrzej Zawal, Lieven Therry, Robby Stoks, Grzegorz Michoński
The relationships between water mite larvae parasitizing Coenagrion scitulum in core and edge populations were described. A total of 636 larvae of 7 water mite species were found on 143 C. scitulum adults (82 females and 61 males). C. scitulum was recorded for the first time as a host species for Arrenurus cuspidator, A. bruzelii, A. bicuspidator, A. tricuspidator, A. claviger and Hydryphantes octoporus. The degree of infestation by particular parasite species was typical for these species. In contrast, the parasites' preferences for host body parts were not typical, as they preferred abdominal segments 2-4, which in earlier studies had been avoided by water mite larvae...
March 1, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/27988722/new-species-of-i-protosticta-i-selys-from-vietnam-with-a-key-to-the-males-of-the-i-p-curiosa-i-group-odonata-platystictidae
#3
Tom Kompier
Three new species of Protosticta Selys, 1855, are described from Vietnam: P. proboscis spec. nov. and P. albifrons spec. nov., while P. satoi dark form is elevated to specific status as P. nigra spec. nov. based on structural and morphological differences. The female of P. linnaei is described for the first time and a key provided to the males of the P. curiosa group in Vietnam.
November 15, 2016: Zootaxa
https://www.readbyqxmd.com/read/27988664/description-of-two-new-species-of-i-coeliccia-i-from-vietnam-odonata-platycnemididae
#4
Quoc Toan Phan, Tom Kompier
Coeliccia hayashii sp. nov. (holotype male, from Doi waterfall, KaNat, K'Bang district, Gia Lai Province, central Vietnam, deposited in VNMN) and Coeliccia mattii sp. nov. (holotype male and female allotype, from Doi Cao, Loc Tan, Bao Lam district, Lam Dong Province, southern Vietnam, deposited in VNMN) are described. The males of both species are characterized by extensive pruinosity on the thorax.
November 23, 2016: Zootaxa
https://www.readbyqxmd.com/read/27905879/transcriptome-profiling-in-the-damselfly-ischnura-elegans-identifies-genes-with-sex-biased-expression
#5
Pallavi Chauhan, Maren Wellenreuther, Bengt Hansson
BACKGROUND: Sexual dimorphism occurs widely across the animal kingdom and has profound effects on evolutionary trajectories. Here, we investigate sex-specific gene expression in Ischnura elegans (Odonata: dragonflies and damselflies), a species with pronounced sexual differences including a female-limited colour polymorphism with two female-like gynochrome morphs and one male-mimicking, androchrome morph. Whole-organism transcriptome profiling and sex-biased gene expression analysis was conducted on adults of both sexes (pooling all females as well as separating the three morphs) to gain insights into genes and pathways potentially associated with sexual development and sexual conflict...
December 1, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27816714/assessment-of-contamination-based-on-trace-element-concentrations-in-gomphus-flavipes-odonata-insect-larvae-of-the-upper-tisza-region
#6
E Simon, O Kis, T Jakab, I Kolozsvári, K Málnás, S Harangi, E Baranyai, M Miskolczi, B Tóthmérész, Gy Dévai
Odonata larvae are frequently used to assess the contamination of aquatic systems, because they tolerate a wide range of chemical and biological conditions in freshwater systems. In early 2000, the sediments of the Hungarian section of the River Tisza and the River Szamos were strongly enriched with heavy metals by an accidental mining spill. Earlier studies demonstrated higher contamination levels in the Szamos than in the Tisza, based on sediment analysis. The aim of our study was to assess the contamination in the Upper Tisza Region, along the upper reach of the Tisza, and the lower reach of the Szamos, based on the trace element concentrations of the Gomphus flavipes larvae...
February 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27811767/description-of-the-final-instar-larva-of-pseudagrion-pruinosum-burmeister-1839-odonata-coenagrionidae-from-thailand
#7
Tosaphol Saetung, Boonsatien Boonsoong
Herein the final instar larva of Pseudagrion pruinosum (Burmeister, 1839) is described and illustrated for the first time, based on reared specimens from Thailand. When compared with the other known Pseudagrion larvae, P. pruinosum is distinguished by three setae on the labial palp, five teeth on the truncate, denticulate lobe on the distal marginal end of the labial palp, one premental seta and a row of three minute setae on each side of the midline, as well as shape and tracheation of caudal gills.
October 14, 2016: Zootaxa
https://www.readbyqxmd.com/read/27811665/taxonomy-and-molecular-phylogeny-of-the-platystictidae-of-sri-lanka-insecta-odonata
#8
M Bedjanič, K Conniff, R A Dow, F R Stokvis, R Verovnik, J Van Tol
The 22 Sri Lankan representatives of the family Platystictidae, all endemic to the island and belonging to the distinct endemic subfamily Platystictinae, are revised, and a new reconstruction of the phylogeny based on molecular characters is provided. Five new species are described: Ceylonosticta venusta sp. nov. (holotype ♂: Rambodde Falls, at the tunnel; Nuwara Eliya District, Central Province; N7.0489, E80.6961; 12-vii-2012; to be deposited at National Museum of Natural History, Colombo, Sri Lanka), C...
November 1, 2016: Zootaxa
https://www.readbyqxmd.com/read/27811655/revision-of-the-genus-coeliccia-kirby-in-borneo-part-ii-two-new-species-from-the-membranipes-group-with-a-redescription-of-c-macrostigma-laidlaw-odonata-zygoptera-platycnemididae
#9
Rory A Dow
Coeliccia matok sp. nov. (holotype male from Borneo, Sarawak, Samarahan Division, peat swamp forest at old UNIMAS campus, 25 ii 2008, to be deposited in BMNH) and Coeliccia paludensis sp. nov. (holotype male from Borneo, Kalimantan Tengah, peat swamp forest in ex Mega Rice Project Block E, 18 vi 2012, in RMNH) are described from Borneo. The two new species are apparently confined to peat swamp forest (C. paludensis) or largely confined to peat swamp forest and related forest formations (C. matok). Coeliccia macrostigma Laidlaw is redescribed and all available information on it is summarised...
November 2, 2016: Zootaxa
https://www.readbyqxmd.com/read/27811645/description-of-the-final-instar-larva-of-acrogomphus-jubilaris-lieftinck-1964-odonata-gomphidae-with-information-on-the-distribution-of-acrogomphus-in-borneo
#10
Stephen G Butler, Philip O M Steinhoff, Rory A Dow
The final instar larva of Acrogomphus jubilaris Lieftinck, 1964, is described and figured for the first time based on exuviae from four male and one female larvae collected in Sarawak, Malaysian Borneo. The adults of A. jubilaris are very rarely encountered. The larvae, however, are surprisingly common in forest streams in Borneo. It is compared with A. malayanus Laidlaw, 1925 and A. walshae Lieftinck, 1935, and notes on behavior, distribution and habitat are included. A map including all known records of A...
November 3, 2016: Zootaxa
https://www.readbyqxmd.com/read/27766110/odonata-dragonflies-and-damselflies-as-a-bridge-between-ecology-and-evolutionary-genomics
#11
Seth Bybee, Alex Córdoba-Aguilar, M Catherine Duryea, Ryo Futahashi, Bengt Hansson, M Olalla Lorenzo-Carballa, Ruud Schilder, Robby Stoks, Anton Suvorov, Erik I Svensson, Janne Swaegers, Yuma Takahashi, Phillip C Watts, Maren Wellenreuther
Odonata (dragonflies and damselflies) present an unparalleled insect model to integrate evolutionary genomics with ecology for the study of insect evolution. Key features of Odonata include their ancient phylogenetic position, extensive phenotypic and ecological diversity, several unique evolutionary innovations, ease of study in the wild and usefulness as bioindicators for freshwater ecosystems worldwide. In this review, we synthesize studies on the evolution, ecology and physiology of odonates, highlighting those areas where the integration of ecology with genomics would yield significant insights into the evolutionary processes that would not be gained easily by working on other animal groups...
2016: Frontiers in Zoology
https://www.readbyqxmd.com/read/27758014/opsins-have-evolved-under-the-permanent-heterozygote-model-insights-from-phylotranscriptomics-of-odonata
#12
Anton Suvorov, Nicholas O Jensen, Camilla R Sharkey, M Stanley Fujimoto, Paul Bodily, Haley M Cahill Wightman, T Heath Ogden, Mark J Clement, Seth M Bybee
Gene duplication plays a central role in adaptation to novel environments by providing new genetic material for functional divergence and evolution of biological complexity. Several evolutionary models have been proposed for gene duplication to explain how new gene copies are preserved by natural selection but these models have rarely been tested using empirical data. Opsin proteins, when combined with a chromophore, form a photopigment that is responsible for the absorption of light, the first step in the phototransduction cascade...
October 18, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27701232/leptogomphus-tioman-sp-nov-odonata-anisoptera-gomphidea-%C3%A2-from-tioman-island-peninsular-malaysia
#13
Chee Yen Choong
A new species Leptogomphus tioman is described based on male specimens collected from Tioman Island, Peninsular Malaysia. It is close to Leptogomphus risi Laidlaw in thoracic markings but is readily distinguished by its anal appendages and accessory genitalia.
September 28, 2016: Zootaxa
https://www.readbyqxmd.com/read/27701231/leptobasis-linda-sp-nov-from-ecuador-odonata-coenagrionidae
#14
Jim T Johnson
Leptobasis linda is described from the Pacific lowlands of Ecuador. The coloration of mature individuals is superficially similar to the widespread L. vacillans, but structural and color characteristics differentiate L. linda from all congeneric species. The male caudal appendages and the female posterior margin of the prothorax are unique among Leptobasis.
September 28, 2016: Zootaxa
https://www.readbyqxmd.com/read/27701213/idiocnemis-schorri-sp-nov-a-new-damselfly-species-from-southern-papua-new-guinea-odonata-platycnemididae
#15
Dirk Gassmann, Stephen J Richards, Dan A Polhemus
Idiocnemis schorri sp. nov. is described from the Hindenburg and Muller Ranges and the Kikori River Basin of southern Papua New Guinea. The new species differs from all congeners by, among other characters, a unique colour pattern on the thorax. Characters of males and females are illustrated and compared to those of similar species from the Idiocnemis bidentata group. The new species is found along small, shallow rainforest streams and is currently known only from the Trans-Fly Foreland and Papuan Gulf Foreland areas of endemism...
September 29, 2016: Zootaxa
https://www.readbyqxmd.com/read/27701200/two-new-species-of-papuagrion-ris-1913-odonata-coenagrionidae-from-new-guinea-with-a-survey-of-distribution-records-for-the-genus
#16
A G Orr, V J Kalkman
Two new species of Papuagrion Ris, 1913 are described from Papua Province, Indonesia. These are P. marirobi sp .nov. from Japen Island and P. stellimontanum sp .nov., from the Star Mountains. The new species are, respectively, most closely allied to P. degeneratum Lieftinck and P. digitiferum Lieftinck. They bring the number of Papuagrion species to 28. New locality records of several other species are noted.
October 2, 2016: Zootaxa
https://www.readbyqxmd.com/read/27660528/aquatic-insects-from-the-caatinga-checklists-and-diversity-assessments-of-ubajara-cear%C3%A3-state-and-sete-cidades-piau%C3%A3-state-national-parks-northeastern-brazil
#17
Daniela Maeda Takiya, Allan Paulo Moreira Santos, Ângelo Parise Pinto, Ana Lucia Henriques-Oliveira, Alcimar do Lago Carvalho, Brunno Henrique Lanzellotti Sampaio, Bruno Clarkson, Felipe Ferraz Figueiredo Moreira, Fernanda Avelino-Capistrano, Inês Corrêa Gonçalves, Isabelle da Rocha Silva Cordeiro, Josenir Teixeira Câmara, Julianna Freires Barbosa, W Rafael Maciel de Souza, José Albertino Rafael
BACKGROUND: Diversity and distribution of Neotropical aquatic insects is still poorly known, with many species to be recorded and many others to be described, due to the small number of taxonomists and sparse faunistic studies. This knowledge is especially poor in the Caatinga Domain in Northeastern Brazil, even though, this region may have played an important historical role in the spatial evolution of faunas of forested areas in northern South America. NEW INFORMATION: Aquatic insect checklists of 96 species from Parque Nacional de Ubajara (Ceará State, Brazil) and 112 species from Parque Nacional de Sete Cidades (Piauí State, Brazil) are presented, representing the following taxa: Elmidae, Epimetopidae, Hydrophilidae, and Torridincolidae (Coleoptera), Hemerodromiinae (Diptera: Empididae), Ephemeroptera, Gerromorpha and Nepomorpha (Hemiptera), Odonata, Plecoptera, and Trichoptera...
2016: Biodiversity Data Journal
https://www.readbyqxmd.com/read/27640129/odonata-diversity-and-synanthropy-in-urban-areas-a-case-study-in-avellaneda-city-buenos-aires-argentina
#18
L S Ramos, F Lozano, J Muzón
The increase of human population, especially in urban areas, correlates with an alarming destruction of green spaces. Therefore, understanding the mechanisms by which urbanization processes affect biodiversity is crucial in integrating the environment in a proper urban planning. The main urban center of Argentina is known as the Greater Buenos Aires (GBA), and it includes the autonomous city of Buenos Aires and 24 surrounding districts. Avellaneda, one of the districts of the GBA, is an important urban and industrial center with green areas and low level of urbanization on the coastal area of the Río de la Plata...
September 17, 2016: Neotropical Entomology
https://www.readbyqxmd.com/read/27635319/the-larvae-of-epigomphus-jannyae-belle-1993-and-e-tumefactus-calvert-1903-insecta-odonata-gomphidae
#19
Rodolfo Novelo-Gutiérrez, Alonso Ramírez, Débora Delgado
The taxonomic knowledge about immature stages of the insect order Odonata (dragonflies and damselflies) is rather limited in tropical America. Here, the larvae of Epigomphus jannyae Belle, 1993 and E. tumefactus Calvert, 1903 are described, figured, and compared with other described congeners. E. jannyae larva is characterized by 3rd antennomere 1.6 times longer than its widest part; ligula very poorly developed, with ten short, truncate teeth on middle; apical lobe of labial palp rounded and smooth. Lateral margins on abdominal segments (S5-9) serrated, lateral spines on S6-9 small and divergent; male epiproct with a pair of dorsal tubercles at basal 0...
2016: PeerJ
https://www.readbyqxmd.com/read/27615887/erythrodiplax-ana-sp-nov-odonata-libellulidae-from-brazilian-palm-swamps
#20
Rhainer Guillermo-Ferreira, Diogo S Vilela, Kleber Del-Claro, Pitágoras C Bispo
Erythrodiplax ana sp. nov. (male holotype, six male and three female paratypes), collected in Vereda wetlands (a unique Neotropical savanna environment) in Uberlândia (Minas Gerais) and Chapada dos Guimarães (Mato Grosso), Brazil, is described and illustrated. The new species fits in Borror's Basalis Group, and can be distinguished from other species by the combination of the following traits: blue pruinosity dorsally on thorax and third to eighth abdominal segments; sides of the thorax olive-green; face ivory or olive-green; wings hyaline with a small apical brown spot on all four wings, well defined in females; male genitalia with sclerotized erectile posterior lobe and inflatable sac-like median process...
August 29, 2016: Zootaxa
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