Heather Proctor, Nicolas Decelles, Pierre-Yves Daoust
{"title":"Deutonymphs of Neottialges caparti Fain (Astigmata: Hypoderatidae) from North American Northern Gannet (Morus bassanus)","authors":"Heather Proctor, Nicolas Decelles, Pierre-Yves Daoust","doi":"10.22621/cfn.v137i1.2989","DOIUrl":"https://doi.org/10.22621/cfn.v137i1.2989","url":null,"abstract":"Deutonymphs of the mite family Hypoderatidae are subdermal parasites of vertebrates, primarily birds. Here we report the presence of deutonymphs of Neottialges caparti Fain (no common name) in the subcutis of Northern Gannet (Morus bassanus (L.)) from Atlantic Canadian waters. We observed mites in 39% of 90 birds whose skin samples were examined microscopically. Our observations represent both the first record of N. caparti in Northern Gannet from the western North Atlantic and the second report of N. caparti since its initial description in 1967 from two Northern Gannets in Belgium.","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"6 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140508460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"\"Why Sharks Matter: a Deep Dive with the World’s Most Misunderstood Predator\" by David Shiffman, 2022 [book review]","authors":"Heather A. Cray","doi":"10.22621/cfn.v136i4.3237","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.3237","url":null,"abstract":"Why Sharks Matter is written by David Shiffman, a marine conservation biolog ist and postdoctoral researcher at Arizona State University with a lifelong passion for and dedication to sharks. The goals of this book, as stated in the introduction, are to teach the reader why sharks are remarkable, what benefits sharks bring, and what you can do to help protect them. Another stated aim is to teach the reader about various options for shark conservation and management, especially those supported by research data but not widely discussed in non-expert circles. Most of the book is dedicated to the latter subject, with a focus on population-level threats and datadriven decision-making. A more accurate title for this book may have been “Shark Conservation and Management Strategies”. Only one chapter covers the subject of the title directly—The Ecological Significance of Sharks (Chapter 3)—whereas the bulk of the book discusses conservation threats and strategies, and what is being done to help shark populations. If you are looking for a book primarily composed of shark miscellany to learn more about these fascinating species and their unique behaviours and adaptations, this is not that book. The author’s enthusiasm for sharks is obvious, and his humour and informal writing style are strengths. Myth-busting is a recurring topic, and the author’s frustration with misconceptions about sharks, conservation threats, and management options is apparent throughout the book; it has the whiff of someone who has dealt with one too many Reddit Ask Me Anything sessions. Most sections of chapters are short, a few pages at most, and cover a wide breadth. As a result, the writing can come across as a bit scattered when subjects change abruptly. My favourite chapter was How are Scientists Helping Sharks? (Chapter 8), which includes short vignettes on various shark researchers and their areas of study, providing an inside look at conservation projects and practices. While there are a few grey-scale images and diagrams embedded in the text, the other images referred to are found as numbered plates in a high quality colour insert, located in the middle of the book. In addition to the Bibliography, the book also has an accompanying website with supplementary information for the curious reader. Although the writing can occasionally come across as defensive, the author clearly is an expert in his field. This book fills a niche as an accessible, plain-language introduction to shark conservation policy. Why Sharks Matter is best suited for those seeking a primer on shark conservation and population management issues and options, especially those interested in the American context. For those seeking an in-depth book about sharks’ roles in the ecosystem and their behaviour or biology, I suggest looking elsewhere. Heather Cray Halifax, NS, Canada","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77543972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Index to Volume 136","authors":"W. Halliday","doi":"10.22621/cfn.v136i4.3243","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.3243","url":null,"abstract":"","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74461034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Observations of Grizzly Bear (Ursus arctos) associated with abundance of spawning Kokanee (Oncorhynchus nerka) at an inland river, British Columbia, Canada","authors":"Sage Raymond, Julius Strauss, Nancy J. Flood","doi":"10.22621/cfn.v136i4.2559","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.2559","url":null,"abstract":"Salmon (Oncorhynchus spp.) are an important food source for Grizzly Bear (Ursus arctos), but many salmon populations are declining. While most research on Grizzly Bear–salmon interactions occurs in coastal ecosystems, declining salmon may also affect Grizzly Bears in inland ecosystems where salmon are also an important part of their diet. We document changes in the number and distribution of observations of Grizzly Bears and changing Kokanee (i.e., landlocked Sockeye Salmon, Oncorhynchus nerka) abundance at an inland river. We hypothesized that reduced abundance of Kokanee would limit the number of Grizzly Bear observations at the river. We compared Kokanee abundance and Grizzly Bear observations (n = 535) between 2012 and 2019 at the Lardeau River, British Columbia, Canada. We used a generalized linear mixed model to test if the number of bear observations changed as a function of Kokanee abundance among four river reaches during eight consecutive years of study. Kokanee abundance was a strong statistical predictor of Grizzly Bear observations (β = 0.52, P = 0.001, CI = 0.12–0.87), and Kokanee abundance and reach explained 73% of the variance. Our results suggest that reduced Kokanee abundance also reduces Grizzly Bear presence, likely because bears seek out other, more available food sources, away from Kokanee spawning habitat. This pattern could limit ecosystem services provided by Grizzly Bears adjacent to spawning areas and it could have implications for bear management and conservation.","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82023017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"\"Beavers: Ecology, Behaviour, Conservation, and Management\" by Frank Rosell and Róisín Campbell-Palmer, 2022 [book review]","authors":"Rosemary Curley","doi":"10.22621/cfn.v136i4.3233","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.3233","url":null,"abstract":"","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82399343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"\"The Alpha Female Wolf: the Fierce Legacy of Yellowstone’s 06\" by Rick McIntyre, 2022 [book review]","authors":"J. Way","doi":"10.22621/cfn.v136i4.3229","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.3229","url":null,"abstract":"","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81740139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"\"Swamplands: Tundra Beavers, Quaking Bogs, and the Improbable World of Peat\" by Edward Struzik, 2021 [book review]","authors":"R. Claytor","doi":"10.22621/cfn.v136i4.3225","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.3225","url":null,"abstract":"","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"186 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75071411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"\"Flora of North America: Volume 10, Magnoliophyta: Proteaceae to Elaeagnaceae\" by Flora of North America Editorial Committee, 2021 [book review]","authors":"P. Sokoloff","doi":"10.22621/cfn.v136i4.3223","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.3223","url":null,"abstract":"","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77655639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}