• Uncovering Cryptic Parasitoid Diversity in Horismenus (Chalcidoidea, Eulophidae)

      Kenyon, SG; Buerki, S; Hansson, C; Alvarez, N; Benrey, B; Ballhorn, D (2015-09-09)
    • Uncovering the sub-lethal impacts of plastic ingestion by shearwaters using fatty acid analysis.

      Puskic, PS; Lavers, JL; Adams, LR; Grünenwald, M; Hutton, I; Bond, AL (Oxford Academic, 2019-05-16)
      Marine plastic pollution is increasing exponentially, impacting an expanding number of taxa each year across all trophic levels. Of all bird groups, seabirds display the highest plastic ingestion rates and are regarded as sentinels of pollution within their foraging regions. The consumption of plastic contributes to sub-lethal impacts (i.e. morbidity, starvation) in a handful of species. Additional data on these sub-lethal effects are needed urgently to better understand the scope and severity of the plastics issue. Here we explore the application of fatty acid (FA) analysis as a novel tool to investigate sub-lethal impacts of plastic ingestion on seabird body condition and health. Using gas chromatography-mass spectrometry, we identified 37 individual FAs within the adipose, breast muscle and liver of flesh-footed (Ardenna carneipes) and short-tailed (Ardenna tenuirostris) shearwaters. We found high amounts of FA 16:0, 18:0, 20:5n3 (eicosapentaenoic acid), 22:6n3 (docosahexaenoic acid) and 18:1n9 in both species; however, the overall FA composition of the two species differed significantly. In flesh-footed shearwaters, high amounts of saturated and mono-unsaturated FAs (needed for fast and slow release energy, respectively) in the adipose and muscle tissues were related to greater bird body mass. While total FAs were not related to the amount of plastic ingested in either species, these data are a valuable contribution to the limited literature on FAs in seabirds. We encourage studies to explore other analytical tools to detect these sub-lethal impacts of plastic.
    • UniEuk : Time to Speak a Common Language in Protistology!

      Berney, C; Ciuprina, A; Bender, S; Brodie, J; Edgcomb, V; Kim, E; Rajan, J; Parfrey, LW; Adl, S; Audic, S; et al. (Wiley, 2017-03-24)
      Universal taxonomic frameworks have been critical tools to structure the fields of botany, zoology, mycology, and bacteriology as well as their large research communities. Animals, plants, and fungi have relatively solid, stable morpho‐taxonomies built over the last three centuries, while bacteria have been classified for the last three decades under a coherent molecular taxonomic framework. By contrast, no such common language exists for microbial eukaryotes, even though environmental ‘‐omics’ surveys suggest that protists make up most of the organismal and genetic complexity of our planet's ecosystems! With the current deluge of eukaryotic meta‐omics data, we urgently need to build up a universal eukaryotic taxonomy bridging the protist ‐omics age to the fragile, centuries‐old body of classical knowledge that has effectively linked protist taxa to morphological, physiological, and ecological information. UniEuk is an open, inclusive, community‐based and expert‐driven international initiative to build a flexible, adaptive universal taxonomic framework for eukaryotes. It unites three complementary modules, EukRef, EukBank, and EukMap, which use phylogenetic markers, environmental metabarcoding surveys, and expert knowledge to inform the taxonomic framework. The UniEuk taxonomy is directly implemented in the European Nucleotide Archive at EMBL‐EBI, ensuring its broad use and long‐term preservation as a reference taxonomy for eukaryotes.
    • Unifying European Biodiversity Informatics (BioUnify)

      Koureas, D; Hardisty, A; Vos, R; Agosti, D; Arvanitidis, C; Bogatencov, P; Buttigieg, PL; de Jong, Y; Horvath, F; Gkoutos, G; et al. (2016-01-19)
    • The unknown planktonic foraminiferal pioneer Henry A. Buckley and his collection at The Natural History Museum, London

      Rillo, MC; Whittaker, J; Ezard, THG; Purvis, A; Henderson, AS; Stukins, S; Giles Miller, C (2016-12-22)
    • An updated checklist of the Culicidae (Diptera) of Morocco, with notes on species of historical and current medical importance

      Trari, B; Dakki, M; Harbach, RE (Society for Vector Ecology, 2017-06)
      An updated checklist of the mosquito species (Diptera: Culicidae) recorded in Morocco from 1916 to 2016 is provided, including synonyms and synonymous usage for each species. Forty‐three species belonging to seven genera are recorded so far: Anopheles (9), Aedes (12) Coquillettidia (2), Culex (12), Culiseta (5), Orthopodomyia (1) and Uranotaenia (2). Traditional and equivalent names in the polyphyletic concept of Aedes are provided for the aedine species. The historical importance and current potential threat of mosquitoes to human health in Morocco is reviewed.
    • Urogenital schistosomiasis and soil-transmitted helminthiasis (STH) in Cameroon: An epidemiological update at Barombi Mbo and Barombi Kotto crater lakes assessing prospects for intensified control interventions

      Campbell, SJ; Stothard, JR; O’Halloran, F; Sankey, D; Durant, T; Ombede, DE; Chuinteu, GD; Webster, BL; Cunningham, L; LaCourse, EJ; et al. (2017-02-27)
    • Urogenital schistosomiasis transmission on Unguja Island, Zanzibar: characterisation of persistent hot-spots

      Pennance, T; Person, B; Muhsin, MA; Khamis, AN; Muhsin, J; Khamis, IS; Mohammed, KA; Kabole, F; Rollinson, D; Knopp, S (2016-12)
    • The use of anthropogenic marine debris as a nesting material by brown boobies (Sula leucogaster)

      Grant, ML; Lavers, JL; Stuckenbrock, S; Sharp, PB; Bond, AL (Elsevier, 2018-10-11)
      Marine debris is pervasive worldwide, and affects biota negatively. We compared the characteristics of debris incorporated within brown booby (Sula leucogaster) nests throughout their pantropical distribution by assessing the type, colour and mass of debris items within nests and in beach transects at 18 sites, to determine if nests are indicators of the amount of debris in local marine environments. Debris was present in 14.4% of nests surveyed, with the proportion of nests with debris varying among sites (range: 0–100%). There was minimal overlap between the type or colour of debris found in nests and on adjacent beaches at individual sites. This suggests that brown boobies do not select debris uniformly across their distribution. We propose that the nests of brown boobies can be used as a sentinel of marine debris pollution of their local environment.
    • Using 454 technology for long-PCR based sequencing of the complete mitochondrial genome from single Haemonchus contortus (Nematoda)

      Jex, AR; Hu, M; Littlewood, T; Waeschenbach, A; Gasser, RB (Springer Science and Business Media LLC, 2008-01-11)
      Background: Mitochondrial (mt) genomes represent a rich source of molecular markers for a range of applications, including population genetics, systematics, epidemiology and ecology. In the present study, we used 454 technology (or the GS20, massively parallel picolitre reactor platform) to determine the complete mt genome of Haemonchus contortus (Nematoda: Trichostrongylidae), a parasite of substantial agricultural, veterinary and economic significance. We validate this approach by comparison with mt sequences from publicly available expressed sequence tag (EST) and genomic survey sequence (GSS) data sets. Results: The complete mt genome of Haemonchus contortus was sequenced directly from longPCR amplified template utilizing genomic DNA (~20–40 ng) from a single adult male using 454 technology. A single contig was assembled and compared against mt sequences mined from publicly available EST (NemBLAST) and GSS datasets. The comparison demonstrated that the 454 technology platform is reliable for the sequencing of AT-rich mt genomes from nematodes. The mt genome sequenced for Haemonchus contortus was 14,055 bp in length and was highly AT-rich (78.1%). In accordance with other chromadorean nematodes studied to date, the mt genome of H. contortus contained 36 genes (12 protein coding, 22 tRNAs, rrnL and rrnS) and was similar in structure, size and gene arrangement to those characterized previously for members of the Strongylida. Conclusion: The present study demonstrates the utility of 454 technology for the rapid determination of mt genome sequences from tiny amounts of DNA and reveals a wealth of mt genomic data in current databases available for mining. This approach provides a novel platform for high-throughput sequencing of mt genomes from nematodes and other organisms.
    • Using the “Natural History Large Hadron Collider” to tell us about plant diversity

      Knapp, S (BioMed Central, 2017-03-07)
      A study published today in BMC Biology uses the RAINBIO dataset, a database of herbarium specimens, to analyze African plant diversity. In this blog we invited Sandra Knapp, a plant taxonomist at the Natural History Museum in London, to talk about the study and the importance of herbaria, which she regards as the “CERN of natural history”.
    • The utility of micro-computed tomography for the non-destructive study of eye microstructure in snails

      Sumner-Rooney, L; Kenny, Nathan; Ahmed, F; Williams, ST (Springer Science and Business Media LLC, 2019-10-28)
      Molluscan eyes exhibit an enormous range of morphological variation, ranging from tiny pigment-cup eyes in limpets, compound eyes in ark clams and pinhole eyes in Nautilus, through to concave mirror eyes in scallops and the large camera-type eyes of the more derived cephalopods. Here we assess the potential of non-destructive micro-computed tomography (µ-CT) for investigating the anatomy of molluscan eyes in three species of the family Solariellidae, a group of small, deep-sea gastropods. We compare our results directly with those from traditional histological methods applied to the same specimens, and show not only that eye microstructure can be visualised in sufficient detail for meaningful comparison even in very small animals, but also that μ-CT can provide additional insight into gross neuroanatomy without damaging rare and precious specimens. Data from μ-CT scans also show that neurological innervation of eyes is reduced in dark-adapted snails when compared with the innervation of cephalic tentacles, which are involved in mechanoreception and possibly chemoreception. Molecular tests also show that the use of µ-CT and phosphotungstic acid stain do not prevent successful downstream DNA extraction, PCR amplification or sequencing. The use of µ-CT methods is therefore highly recommended for the investigation of difficult-to-collect or unique specimens.
    • Various Gallus varius hybrids: variation in junglefowl hybrids and Darwin's interest in them

      van Grouw, Hein; Dekkers, W (British Ornithologists' Club, 2019-12-16)
      Hybrids between Green Junglefowl Gallus varius and domestic fowl G. gallus domesticus confused several 19th-century ornithologists. The plumage of these hybrids is so unlike the colours and patterns of either of the parent species that they were considered to be distinct species: G. aeneusTemminck, 1825; G. temminckiiGray, 1849; and G. violaceusKelsall, 1891. Darwin wanted to understand if G. aeneus and G. temminckii were hybrids or species, as part of his research on the origin of the domestic chicken. His view was that all domesticated fowl have a single wild ancestor, Red Junglefowl G. gallus (formerly G. bankiva). A hybrid specimen now present in the bird collection of the Natural History Museum at Tring played an important role in Darwin's reasoning and, although the conclusions he drew from this specimen were incorrect, his single-ancestor origin theory for domesticated fowl stands. ‘These hybrids were at one time thought to be specifically distinct, and were named G. aeneus. Mr. Blyth and others believe that the G. Temminckii is a similar hybrid' (Darwin 1868a: 234–235).
    • Vertebral column deformities in white-beaked dolphins from the eastern North Atlantic

      Bertulli, CG; Galatius, A; Kinze, CC; Rasmussen, MH; Deaville, R; Jepson, P; Vedder, EJ; Sánchez Contreras, GJ; Sabin, RC; Watson, A (2015-09-17)
    • Vertical transmission of Tetracapsuloides bryosalmonae (Myxozoa), the causative agent of salmonid proliferative kidney disease

      Abd-Elfattah, Ahmed; Fontes, I; Kumar, Gokhlesh; Soliman, Hatem; Hartikainen, H; Okamura, B; El-Matbouli, Mansour (2014-04)
    • Warm Temperatures, Cool Sponges: The Effect of Increased Temperatures on the Antarctic Sponge Isodictya sp

      González-Aravena, M.; Kenny, N.J.; Osorio, M.; Font, A.; Riesgo, A.; Cárdenas, C.A. (bioRxiv, 2019-08-06)
      Although the cellular and molecular responses to exposure to relatively high temperatures (acute thermal stress or heat shock) have been studied previously, only sparse empirical evidence of how it affects cold-water species is available. As climate change becomes more pronounced in areas such as the Western Antarctic Peninsula, it has become crucial to understand the capacity of these species to respond to thermal stress. Here we use the Antarctic sponge Isodictya sp. to investigate how sessile organisms (particularly Porifera) can adjust to acute short-term heat stress, by exposing this species to 3 and 5 °C for 4 hours, corresponding to predicted temperatures under high-end 2080 IPCC-SRES scenarios. Assembling a de novo reference transcriptome (90,188 contigs, >93.7% metazoan BUSCO genes) we have begun to discern the molecular response employed by Isodictya to adjust to environmental insult. Our initial analyses suggest that TGF-β, ubiquitin and hedgehog cascades are involved, alongside other genes. However, the degree and type of response changed little from 3 to 5 °C, suggesting that even moderate rises in temperature could cause stress at the limits of this organism’s capacity. Given the importance of sponges to Antarctic ecosystems, our findings are vital for discerning the consequences of increases in Antarctic ocean temperature on these and other species.
    • What can cetacean stranding records tell us? A study of UK and Irish cetacean diversity over the past 100 years

      Coombs, Ellen J; Deauville, R; Sabin, RC; Allan, Louise; O'Connell, M; Berrow, S; Smith, B; Brownlow, A; Ten Doeschate, M; Penrose, R; et al. (Wiley, 2019-04-30)
      There are many factors that may explain why cetaceans (whales, dolphins, and porpoises) strand. Around the UK and Ireland, over 20,000 stranding records have been collected since 1913, resulting in one of the longest, continuous, systematic stranding data sets in the world. We use this data set to investigate temporal and spatial trends in cetacean strandings and use generalized additive models (GAMs) to investigate correlates of strandings. We find a dramatic increase in strandings since the 1980s, most likely due to increases in recording effort, and the formation of formal strandings networks. We found no correlation between the numbers of cetaceans stranding each year and several potential environmental and anthropogenic predictors: storms, geomagnetic activity, North Atlantic Oscillations, sea‐surface temperature, and fishing catch. We suggest that this is because the scale of change in the variables is too coarse to detect any potential correlations. It may also highlight the idiosyncratic nature of species’ responses to external pressures, and further the need to investigate other potential correlates of strandings, such as bycatch and military sonar. Long‐term cetacean stranding data provide vital information on past and present diversity for common, rare, and inconspicuous species. This study underlines the importance of continued support for stranding networks.