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https://www.readbyqxmd.com/read/28202810/how-numbers-of-nesting-sea-turtles-can-be-overestimated-by-nearly-a-factor-of-two
#1
Nicole Esteban, Jeanne A Mortimer, Graeme C Hays
Estimating the absolute number of individuals in populations and their fecundity is central to understanding the ecosystem role of species and their population dynamics as well as allowing informed conservation management for endangered species. Estimates of abundance and fecundity are often difficult to obtain for rare or cryptic species. Yet, in addition, here we show for a charismatic group, sea turtles, that are neither cryptic nor rare and whose nesting is easy to observe, that the traditional approach of direct observations of nesting has likely led to a gross overestimation of the number of individuals in populations and underestimation of their fecundity...
February 22, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28187641/cryptic-within-cryptic-genetics-morphometrics-and-bioacoustics-delimitate%C3%A2-a-new-species-of-i-eleutherodactylus-i-anura-eleutherodactylidae-from-eastern-cuba
#2
Ariel Rodríguez, Álvaro Dugo-Cota, Santiago Montero-Mendieta, Alejandro Gonzalez-Voyer, Roberto Alonso Bosch, Miguel Vences, Carles Vilà
We studied the variation in genetics, bioacustics, and morphology in Eleutherodactylus glamyrus, a regionally endemic frog species restricted to high elevations in the Sierra Maestra Massif, Western Cuba that was originally described as a cryptic species hidden under the name E. auriculatus. Genetic analysis of mtDNA sequences of the 16S and cob genes identify two allopatric and strongly supported mitochondrial clades (phylogroups) which also showed no haplotype sharing in the nuclear Rag-1 gene. Bioacustic, and morphological comparisons concordantly identify these two phylogroups as independent evolutionary lineages...
January 20, 2017: Zootaxa
https://www.readbyqxmd.com/read/28187633/integrative-taxonomy-reveals-the-first-record-and-a-new-species-for-the-previously-monotypic-genus-i-tethytimea-i-tethyida-tethyidae-in-the-gulf-of-mexico
#3
José Antonio Cruz-Barraza, Cristina Vega, Enrique Ávila, Laura Elena Vázquez-Maldonado
The first record of the previous monotypic genus Tethytimea and the description of a new species from cryptic habitats of Gulf of Mexico are presented. Tethytimea carmelita sp. nov., is a red orange cushion shaped sponge (about 5 mm thick) with a tuberculate to granular surface. The spicular complement is formed by tylostyles (200-1120 µm length), smooth spheres (12.5-55 µm in diameter); megasters-spheroxyasters (12.5-90 µm in diameter); and micrasters in two categories: oxy-strongylasters (12.5-27.5 µm in diameter) and spherotylasters (2...
January 25, 2017: Zootaxa
https://www.readbyqxmd.com/read/28187592/-i-culicoides-i-latreille-biting-midges-diptera-ceratopogonidae-of-the-dongzhaigang-mangrove-forest-hainan-province-china
#4
Jia-Hui Li, David Gopurenko, DU-Cheng Cai, Ye-Meng Yang, Rong Hu, Arunrat Thepparat, April H Wardhana, Heung-Chul Kim, Terry A Klein, Myung-Soon Kim, Glenn A Bellis
The biting midge fauna of Dongzhaigang Mangrove Forest, Hainan Province, China was sampled on 14 October 2015 using three methods: a pan light trap operated from dusk until dawn the following morning and sweep net and human landing collections performed between 16:15-17:15 hr. Eight species, including two new records for China, Culicoides palawanensis and C. niphanae, and one new record for Hainan, C. circumbasalis, were collected. A key to assist with identification of specimens of these species is provided...
January 31, 2017: Zootaxa
https://www.readbyqxmd.com/read/28187575/stalked-jellyfishes-cnidaria-staurozoa-of-south-africa-with-the-description-of-i-calvadosia-i-i-lewisi-i-sp-nov
#5
Lucília S Miranda, George M Branch, Allen G Collins, Yayoi M Hirano, Antonio C Marques, Charles L Griffiths
Stalked jellyfishes (Cnidaria: Staurozoa) are cryptic, benthic animals, known mainly from polar and temperate waters of the Northern Hemisphere. We describe a new species, Calvadosia lewisi, from South Africa and review the staurozoan fauna of the region. Three other species are previously known from South Africa: Calvadosia capensis (Carlgren, 1938); Depastromorpha africana Carlgren, 1935; and Lipkea stephensoni Carlgren, 1933, but all of these are known from very few records and have been poorly illustrated and documented to date...
February 3, 2017: Zootaxa
https://www.readbyqxmd.com/read/28187126/from-east-to-west-across-the-palearctic-phylogeography-of-the-invasive-lime-leaf-miner-phyllonorycter-issikii-lepidoptera-gracillariidae-and-discovery-of-a-putative-new-cryptic-species-in-east-asia
#6
Natalia Kirichenko, Paolo Triberti, Issei Ohshima, Julien Haran, Bong-Kyu Byun, Houhun Li, Sylvie Augustin, Alain Roques, Carlos Lopez-Vaamonde
Knowing the phylogeographic structure of invasive species is important for understanding the underlying processes of invasion. The micromoth Phyllonorycter issikii, whose larvae damage leaves of lime trees Tilia spp., was only known from East Asia. In the last three decades, it has been recorded in most of Europe, Western Russia and Siberia. We used the mitochondrial cytochrome c oxidase subunit I (COI) gene region to compare the genetic variability of P. issikii populations between these different regions...
2017: PloS One
https://www.readbyqxmd.com/read/28186341/embracing-discordance-phylogenomic-analyses-provide-evidence-for-allopolyploidy-leading-to-cryptic-diversity-in-a-mediterranean-campanula-campanulaceae-clade
#7
Andrew A Crowl, Cody Myers, Nico Cellinese
The Mediterranean Basin harbors a remarkable amount of biodiversity, a high proportion of which is endemic to this region. Here we present an in-depth study of an angiosperm species complex, in which cryptic taxonomic diversity has been hypothesized. Specifically, we focus on four currently recognized species in the Roucela complex, a well-supported clade in the Campanulaceae/Campanuloideae: Campanula creutzburgii, C. drabifolia, C. erinus, and C. simulans. This study takes a phylogenomic approach, utilizing near-complete plastomes and 130 nuclear loci, to uncover cryptic diversity and test hypotheses regarding hybridization and polyploidy within this clade...
February 10, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28185208/genetic-diversity-of-urban-camponotus-mayr-hymenoptera-formicidae-ants-revealed-by-capture-of-alates-and-dna-sequencing
#8
A A Oliveira, A E C Campos, R Harakava
The Camponotus Mayr genus of carpenter ants is one of the largest in species number and widely represented in the Neotropical Region. Most species are generalists and capable of exploiting diverse habitats including urban environments. Urban green areas can act as a repository of regional biodiversity, thus we investigated whether this is valid for the largest city in South America. We compared the richness of Camponotus spp. in two green areas in regions with distinct urbanization profiles and also with previous surveys made in smaller cities and in natural areas of the original Atlantic Forest...
February 9, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28182788/correction-cryptic-species-due-to-hybridization-a-combined-approach-to-describe-a-new-species-carex-cyperaceae
#9
Enrique Maguilla, Marcial Escudero
[This corrects the article DOI: 10.1371/journal.pone.0166949.].
2017: PloS One
https://www.readbyqxmd.com/read/28179510/when-coi-barcodes-deceive-complete-genomes-reveal-introgression-in-hairstreaks
#10
Qian Cong, Jinhui Shen, Dominika Borek, Robert K Robbins, Paul A Opler, Zbyszek Otwinowski, Nick V Grishin
Two species of hairstreak butterflies from the genus Calycopis are known in the United States: C. cecrops and C. isobeon Analysis of mitochondrial COI barcodes of Calycopis revealed cecrops-like specimens from the eastern US with atypical barcodes that were 2.6% different from either USA species, but similar to Central American Calycopis species. To address the possibility that the specimens with atypical barcodes represent an undescribed cryptic species, we sequenced complete genomes of 27 Calycopis specimens of four species: C...
February 8, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28179023/optimization-of-dna-extraction-for-advancing-coral-microbiota-investigations
#11
Laura Weber, Emelia DeForce, Amy Apprill
BACKGROUND: DNA-based sequencing approaches are commonly used to identify microorganisms and their genes and document trends in microbial community diversity in environmental samples. However, extraction of microbial DNA from complex environmental samples like corals can be technically challenging, and extraction methods may impart biases on microbial community structure. METHODS: We designed a two-phase study in order to propose a comprehensive and efficient method for DNA extraction from microbial cells present in corals and investigate if extraction method influences microbial community composition...
February 8, 2017: Microbiome
https://www.readbyqxmd.com/read/28177841/dna-barcoding-as-an-aid-for-species-identification-in-austral-black-flies-insecta-diptera-simuliidae
#12
Luis Miguel Hernandez-Triana, Fernanda Montes DE Oca, Sean W J Prosser, Paul D N Hebert, Ryan Gregory, Shelley McMurtrie
In this paper, the utility of a partial sequence of the COI gene, the DNA barcoding region, for the identification of species of black flies in the Austral Region was assessed. Twenty eight morphospecies were analysed, 8 in the genus Austrosimulium (4 species in the subgenus Austrosimulium s.str., 3 in the subgenus Novaustrosimulium, and 1 species unassigned to subgenus), 2 of the genus Cnesia, 8 of Gigantodax, 3 of Paracnephia, 1 Paraustrosimulium and 4 species to Simulium, subgenera (Morops, Nevermannia, and Pternaspatha)...
November 21, 2016: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28177325/one-species-for-one-island-unexpected-diversity-and-weak-connectivity-in-a-widely-distributed-tropical-hydrozoan
#13
B Postaire, P Gélin, J H Bruggemann, H Magalon
Isolation by distance (IBD) is one of the main modes of differentiation in marine species, above all in species presenting low dispersal capacities. This study reports the genetic structuring in the tropical hydrozoan Lytocarpia brevirostris α (sensu Postaire et al, 2016b), a brooding species, from 13 populations in the Western Indian Ocean (WIO) and one from New Caledonia (Tropical Southwestern Pacific). At the local scale, populations rely on asexual propagation at short distance, which was not found at larger scales; identical genotypes were restricted to single populations...
February 8, 2017: Heredity
https://www.readbyqxmd.com/read/28170395/genetic-structure-and-distribution-of-parisotoma-notabilis-collembola-in-europe-cryptic-diversity-split-of-lineages-and-colonization-patterns
#14
Helge von Saltzwedel, Stefan Scheu, Ina Schaefer
Climatic and biome changes of the past million years influenced the population structure and genetic diversity of soil-living arthropods in Europe. However, their effects on the genetic structure of widespread and abundant soil animal species such as the Collembola Parisotoma notabilis remain virtually unknown. This generalist and parthenogenetic species is an early colonizer of disturbed habitats and often occurs in human modified environments. To investigate ancient climatic influence and recent distributions on the genetic structure of P...
2017: PloS One
https://www.readbyqxmd.com/read/28166541/identification-and-expression-profile-analysis-of-odorant-binding-protein-and-chemosensory-protein-genes-in-bemisia-tabaci-med-by-head-transcriptome
#15
Ran Wang, Fengqi Li, Wei Zhang, Xiaoman Zhang, Cheng Qu, Guillaume Tetreau, Lujuan Sun, Chen Luo, Jingjiang Zhou
Odorant binding proteins (OBPs) and chemosensory proteins (CSPs) of arthropods are thought to be involved in chemical recognition which regulates pivotal behaviors including host choice, copulation and reproduction. In insects, OBPs and CSPs located mainly in the antenna but they have not been systematically characterized yet in Bemisia tabaci which is a cryptic species complex and could damage more than 600 plant species. In this study, among the 106,893 transcripts in the head assembly, 8 OBPs and 13 CSPs were identified in B...
2017: PloS One
https://www.readbyqxmd.com/read/28166384/cryptosporidium-identification-and-genetic-typing
#16
Jan Šlapeta
Cryptosporidium spp. are obligate protozoan parasites of the gastrointestinal tract of vertebrates, including humans. In the majority of human cases, the diarrheal disease cryptosporidiosis is caused by either the human-adapted species Cryptosporidium hominis or the zoonotic Cryptosporidium parvum 'bovine genotype' (also known as Cryptosporidium pestis). The infectious stage, environmentally resilient Cryptosporidium oocysts, are shed by the infected host. Cryptosporidium parasites are transmitted by the fecal-oral route and are one of the major water-borne pathogens...
February 6, 2017: Current Protocols in Microbiology
https://www.readbyqxmd.com/read/28165149/post-metamorphic-development-of-skin-glands-in-a-true-toad-parotoids-versus-dorsal-skin
#17
Eleonora Regueira, Camila Dávila, Alina G Sassone, María E Ailín O'Donohoe, Gladys N Hermida
Chemical defenses in amphibians are a common antipredatory and antimicrobial strategy related to the presence of dermal glands that synthesize and store toxic or unpalatable substances. Glands are either distributed throughout the skin or aggregated in multiglandular structures, being the parotoids the most ubiquitous macrogland in toads of Bufonidae. Even though dermal glands begin to develop during late-larval stages, many species, including Rhinella arenarum, have immature glands by the end of metamorphosis, and their post-metamorphic growth is unknown...
February 6, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28161911/cryptic-diversity-and-discordance-in-single-locus-species-delimitation-methods-within-horned-lizards-phrynosomatidae-phrynosoma
#18
Christopher Blair, Robert W Bryson
Biodiversity reduction and loss continues to progress at an alarming rate, and thus there is widespread interest in utilizing rapid and efficient methods for quantifying and delimiting taxonomic diversity. Single-locus species-delimitation methods have become popular, in part due to the adoption of the DNA barcoding paradigm. These techniques can be broadly classified into tree-based and distance-based methods depending on whether species are delimited based on a constructed genealogy. Although the relative performance of these methods has been tested repeatedly with simulations, additional studies are needed to assess congruence with empirical data...
February 4, 2017: Molecular Ecology Resources
https://www.readbyqxmd.com/read/28154553/identification-and-antifungal-susceptibility-profiles-of-candida-nivariensis-and-candida-bracarensis-in-a-multi-center-chinese-collection-of-yeasts
#19
Xin Hou, Meng Xiao, Sharon C-A Chen, He Wang, Shu-Ying Yu, Xin Fan, Fanrong Kong, Ying-Chun Xu
Candida nivariensis and C. bracarensis are two emerging cryptic species within the C. glabrata complex. Thirteen of these isolates from 10 hospitals in China were studied for their species identification and antifungal susceptibilities. Phenotypic and molecular [rDNA ITS sequencing, D1/D2 sequencing and ITS sequencer-based capillary gel electrophoresis (SCGE)] and matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) MS identification methods were compared for their performance in species identification...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28154432/are-entomopathogenic-nematodes-effective-biological-control-agents-against-the-carob-moth-ectomyelois-ceratoniae
#20
Zahra Memari, Javad Karimi, Shokoofeh Kamali, Seyed Hossein Goldansaz, Mojtaba Hosseini
The carob moth (Ectomyelois ceratoniae) is the key pest of pomegranate, which causes a significant percentage of losses in pomegranate orchards and warehouses of Iran annually. The pest larvae are characterized by displaying a cryptic behavior within the fruit, which avoids most routine control techniques, especially chemical method. The low efficiency of traditional measurements and also the rich species diversity of natural enemies within the infested fruits highlight the necessity of exploring effective control methods, especially environmental friendly approaches...
December 2016: Journal of Nematology
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