5 Works

Bitcoin Awareness, Ownership and Use: 2016–20

Daniela Balutel, Marie-Helene Felt, Gradon Nicholls & Marcel C. Voia
As technology evolves, so does the way Canadians make payments. The Bank of Canada is therefore interested in researching the potential need for a digital alternative to cash. In a 2020 speech, Deputy Governor Tim Lane highlighted two scenarios that could warrant the launch of a central bank digital currency: - a decline in the use of cash - a rise in the use of cryptocurrencies. The Bank conducts regular surveys to monitor trends in...

Data from: Multilocus phylogeny and ecological differentiation of the “Eupelmus urozonus species group” (Hymenoptera, Eupelmidae) in the West-Palaearctic

Fadel Al Khatib, Astrid Cruaud, Lucian Fusu, Gwenaëlle Genson, Jean-Yves Rasplus, Nicolas Ris & Gérard Delvare
Background: The ecological differentiation of insects with parasitic life-style is a complex process that may involve phylogenetic constraints as well as morphological and/or behavioural adaptations. In most cases, the relative importance of these driving forces remains unexplored. We investigate here this question for the “Eupelmus urozonus species group” which encompasses parasitoid wasps of potential interest in biological control. This was achieved using seven molecular markers, reliable records on 91 host species and a proxy of...

Data from: A genome-wide approach to the phylogeography of the mussel Mytilus galloprovincialis in the Adriatic and the Black Seas

Marta Paterno, Levent Bat, Jamila B Souissi, Elisa Boscari, Aurore Chassanite, Leonardo Congiu, Giuseppe Guarnieri, Claudia Kruschel, Vesna Macic, Ilaria A Marino, Dragos Micu, Nataliya Milchakova, Marina Panayotova, Chiara Papetti, Stefan Strungaru, Valentina R Todorova, Emanuela Voutsinas & Lorenzo Zane
Connectivity between populations shapes the genetic structure of species being crucial for an effective management of environmental resources. Genetic approaches can provide indirect measures of connectivity, allowing the identification of genetically differentiated - unconnected - populations. In this study, we applied a 2b-RAD approach based on hundreds of polymorphic loci to provide the first detailed insight into the population genomics of the Mediterranean mussel Mytilus galloprovincialis in part of its native geographical range. We sampled...

Cash in the Pocket, Cash in the Cloud: Cash Holdings of Bitcoin Owners

Daniela Balutel, Christopher Henry, Kim Huynh & Marcel C. Voia
We estimate the effect of Bitcoin ownership on the level of cash holdings of Canadian consumers. Bitcoin ownership positively correlates with cash holdings even after accounting for selection into ownership via a control function approach. On average, Bitcoin owners hold 83 percent (in 2018) to 95 percent (in 2017) more cash than non-owners. Focusing on the quantiles of cash holdings, we find that Bitcoin ownership has a highly nonlinear effect. For example, the difference in...

An integrated phylogenetic reassessment of the parasitoid superfamily Platygastroidea (Hymenoptera: Proctotrupomorpha) results in a revised familial classification

Chen Huayan, Lahey Zachary, Elijah J. Talamas, Alejandro A. Valerio, Ovidiu A. Popovici, Luciana Musetti, Hans Klompen, Andrew Polaszek, Lubomír Masner, Andrew D. Austin & Norman F. Johnson
The superfamily Platygastroidea (Hymenoptera: Proctotrupomorpha) is a diverse group of parasitoid wasps that attack nine orders of insects as well as spiders. They appear to show a clear pattern of host group specificity among genera. A robust phylogeny is essential to understanding the monophyly of and relationships among lower level groups and the pattern of the shifts among host groups. We conducted phylogenetic analyses of Platygastroidea based on four molecular markers (18S, 28S, COI, and...

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