1,720,957 research outputs found
Local hyperparasitism: Mites found on flat flies carried by 29 species of birds
No full textPosterPoster highlighting a research study to look at and characterize the hippoboscid flies and their hyperparasitic mites from birds on Vancouver Island.https://viurrspace.ca/bitstream/handle/10613/23127/SimardProvencalPosterReduced.pdf?sequence=3Biology 490 - Directed Studies in Biolog
Examining environmental and life history correlates of winter and migratory movements in a nomadic Arctic-breeding passerine
Get PDFThe Snow Bunting (Plectrophenax nivalis) is an Arctic-breeding songbird facing population declines. The cause for these declines, however, is not well understood because of the difficulty of studying this species due to their remote breeding grounds in the Arctic and nomadic wintering movement. With climate change increasing ambient temperatures and affecting weather systems at a global scale, Snow Buntings will be affected at all life stages. To help fill in knowledge gaps for the wintering stage of this species, the goal of this research was to understand patterns of movements of Snow Buntings overwintering in Ontario, Canada. Specifically, we first investigated which environmental and intrinsic factors influenced space use during the wintering period, and used this as a basis to estimate spring migration initiation. To accomplish these goals, we spatially tracked birds using automated digitally-coded radiotelemetry (Motus Wildlife Tracking System) tags deployed on wintering birds in Southwestern Ontario. Additionally, while some individuals were banded, tagged, and released where they were caught, others were strategically displaced by several hundred kilometers to causally test their response to different environmental conditions. We found that surface pressure was an important extrinsic factor influencing movement decisions in wintering buntings. Further, surface pressure, precipitable water in the atmosphere, and wind speeds were important predictors of whether detections were associated with differentiating wintering or migration movements. However, we found no evidence to support the role of sex or body size influencing movement decisions in wintering or early-migration buntings. Finally, combining tracking and band-return data, we found support for a previously undescribed spring migratory pathway. Quantifying the movement ecology of Snow Buntings in Southwestern Ontario will help to determine whether they have the capacity to adapt to an increasingly changing landscape across multiple life stages
Bird monitoring and banding project at Buttertubs West Marsh, Nanaimo, BC: 2021 data report
No full textSince 2013, Vancouver Island University (VIU) has operated a bird monitoring and banding project at Buttertubs West Marsh, with overall objectives to: monitor migrant and resident birds to contribute to regional and continent-wide efforts to monitor changes in population levels of these species; provide practical educational and training opportunities for VIU students and community volunteers; and, conduct public demonstrations where people of all ages can learn about bird identification, ecology, evolution, and conservation. This project was conducted in partnership with the City of Nanaimo, Ducks Unlimited Canada, and The Nature Trust of BC. This report summarizes the activities and results of this project during 2021. Project activities are described in the sections below and included: songbird monitoring and banding; and, swallow nest box monitoring. Summaries of volunteer effort / training and public demonstration / education are also included.https://viurrspace.ca/bitstream/handle/10613/27339/VIU-Buttertubs-Banding-2021-Report.pdf?sequence=
Bird monitoring and banding project at Buttertubs West Marsh, Nanaimo, BC: 2020 data report
No full textSince 2013, Vancouver Island University (VIU) has operated a bird monitoring and banding project at Buttertubs West Marsh, with overall objectives to: monitor migrant and resident birds to contribute to regional and continent-wide efforts to monitor changes in population levels of these species; provide practical educational and training opportunities for VIU students and community volunteers; and, conduct public demonstrations where people of all ages can learn about bird identification, ecology, evolution, and conservation. This project was conducted in partnership with the City of Nanaimo, Ducks Unlimited Canada, and The Nature Trust of BC. This report summarizes the activities and results of this project during 2020. Project activities are described in the sections below and included: songbird monitoring and banding; and, swallow nest box monitoring. Summaries of volunteer effort / training and public demonstration / education are also included.https://viurrspace.ca/bitstream/handle/10613/27340/VIU-Buttertubs-Banding-2020-Report.pdf?sequence=
Bird monitoring and banding project at Buttertubs West Marsh, Nanaimo, BC: 2022 data report
No full textSince 2013, Vancouver Island University (VIU) has operated a bird monitoring and banding
project at Buttertubs West Marsh, with overall objectives to: monitor migrant and resident birds to contribute to regional and continent-wide efforts to
monitor changes in population levels of these species; provide practical educational and training opportunities for VIU students and community
volunteers; and, conduct public demonstrations where people of all ages can learn about bird identification,
ecology, evolution, and conservation.
This project was conducted in partnership with the City of Nanaimo, Ducks Unlimited Canada,
and The Nature Trust of BC.
This report summarizes the activities and results of this project during 2022. Project activities are
described in the sections below and included: songbird monitoring and banding; and, swallow nest box monitoring.
Summaries of volunteer effort / training and public demonstration / education are also included.https://viurrspace.ca/bitstream/handle/10613/27335/VIU-Buttertubs-Banding-2022-Report.pdf?sequence=
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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