The Canadian Field-Naturalist最新文献_第5页

New Titles 新书

The Canadian Field-Naturalist Pub Date : 2023-06-21 DOI: 10.22621/cfn.v136i4.3239

Jessica Simms

引用次数: 0

Estimated effects of clear-cuts and burns associated with habitat use by female Newfoundland Caribou (Rangifer tarandus) 雌性纽芬兰驯鹿(Rangifer tarandus)利用栖息地所造成的毁林和烧伤影响的估计

The Canadian Field-Naturalist Pub Date : 2023-06-21 DOI: 10.22621/cfn.v136i4.2767

Daniella J. Dekelaita, P. Krausman, S. Mahoney

{"title":"Estimated effects of clear-cuts and burns associated with habitat use by female Newfoundland Caribou (Rangifer tarandus)","authors":"Daniella J. Dekelaita, P. Krausman, S. Mahoney","doi":"10.22621/cfn.v136i4.2767","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.2767","url":null,"abstract":"The decline of Caribou (Rangifer tarandus) is mainly attributed to anthropogenic disturbance from resource development (i.e., logging, oil and gas extraction), which causes habitat loss and increased predation risk. Natural landscape disturbance, particularly from fire, can have similar effects, and cumulative effects from disturbance have been associated with lower neonate recruitment. Our objective was to evaluate the potential effects of land cover types on resource selection by females, with an emphasis on clear-cuts and fire, during the calving season (May–June) in three neighbouring herds (Middle Ridge, Gaff Topsails, and Pot Hill) on insular Newfoundland, Canada, and compare results with pre-existing information on calf recruitment. We applied a resource selection framework to analyze location data collected from global positioning system collars between 2007–2010 and estimate relative probability of use for different cover types. Recruitment was lowest in Pot Hill, where ≤10-year old clear-cuts were favoured, whereas recruitment was highest in Middle Ridge and Gaff Topsails, where females favoured burns, suggesting that burns could be more beneficial to Caribou fitness. Further investigation will be needed to more closely examine how anthropogenic versus natural disturbance affects Caribou fitness in Newfoundland and improve our understanding of important habitat for calving females.","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":"74487934","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}

引用次数: 0

Combining current and historical biodiversity surveys reveals order of magnitude greater richness in a British Columbia marine protected area 结合当前和历史的生物多样性调查显示，不列颠哥伦比亚省海洋保护区的丰富程度要高得多

The Canadian Field-Naturalist Pub Date : 2023-06-21 DOI: 10.22621/cfn.v136i4.2903

M. Wonham, C. Gerstle, C. Bates

{"title":"Combining current and historical biodiversity surveys reveals order of magnitude greater richness in a British Columbia marine protected area","authors":"M. Wonham, C. Gerstle, C. Bates","doi":"10.22621/cfn.v136i4.2903","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.2903","url":null,"abstract":"The value of biodiversity and of documented biodiversity surveys is well established. Extracting historical biodiversity data and synthesizing them with current data can provide a more comprehensive estimate of total diversity and guide future monitoring. We demonstrate the utility of compiling historical and recent biodiversity data to better characterize taxon richness and composition. Our focus is an otherwise unmonitored habitat in an unmonitored British Columbia provincial park, in a heavily impacted region of the Salish Sea that was designated a United Nation Biosphere Reserve in 2021. We conducted surveys and compiled historical records that together spanned three intertidal habitats and 43 years. From these combined data we report a total of 99 taxa, an order of magnitude increase over the number listed in the park’s Master Plan. These include seven non-native species, of which four are newly reported here. Rarefaction, extrapolation, and multivariate dissimilarity analyses revealed the roles of methods and habitat types in contributing to differences in taxon richness and composition among surveys. This data compilation illustrates many of the challenges and opportunities in aligning and assembling independent space-time snapshots of alpha (i.e., local) diversity to better understand the gamma (i.e., regional) diversity of a marine protected area and provides the foundational data needed to design effective future monitoring at molecular to ecosystem scales.","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81686947","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}

引用次数: 0

Cases of freeze-dried freshwater turtles at the northern limit of their ranges in southern Ontario 冻干淡水龟在安大略省南部活动范围的北部

The Canadian Field-Naturalist Pub Date : 2023-06-21 DOI: 10.22621/cfn.v136i4.2959

Marc Dupuis‐Désormeaux, S. Gillingwater, Sue J. Carstairs

引用次数: 0

Malocclusion in an Arctic Wolf (Canis lupus arctos) from northeast Greenland 格陵兰岛东北部北极狼(Canis lupus arctos)的错颌畸形

The Canadian Field-Naturalist Pub Date : 2023-06-21 DOI: 10.22621/cfn.v136i4.3009

Ulf Marquard-Petersen

{"title":"Malocclusion in an Arctic Wolf (Canis lupus arctos) from northeast Greenland","authors":"Ulf Marquard-Petersen","doi":"10.22621/cfn.v136i4.3009","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.3009","url":null,"abstract":"I document the first case of malocclusion in an Arctic Wolf (Canis lupus arctos) from Greenland. All canine teeth of a wolf found dead on the tundra of northeast Greenland showed evidence of heavy anterior wear resulting from occlusion with the opposite teeth. Additional heavy wear on the incisors indicated a level bite. No cases of malocclusion were found in the largest museum collection of Arctic Wolf skulls (n = 11) from Greenland. However, the collection consisted exclusively of specimens from a northeast Greenland wolf population extirpated ca. 1939; thus, it provided no information on the incidence of malocclusion in more contemporary wolves. A finding of malocclusion in the more recent wolf population could be important because the condition is genetically based and the trait is expressed more frequently with increased inbreeding. The small, geographically isolated wolf population that this wolf was a part of disappeared for reasons unknown after 2002 and genetic conditions cannot be excluded as a contributing factor. Future study of the prevalence and severity of this abnormality in Arctic Wolves from Greenland will be problematic because of the difficulty of acquiring comparative material, but could be conducted on other populations of Arctic Wolves.","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81419110","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}

引用次数: 0

"Field Guide to Whales, Dolphins and Porpoises" by Mark Carwardine, illustrations by Martin Camm, 2022 [book review] 《鲸鱼、海豚和鼠海豚野外指南》，作者马克·卡瓦尔丁，插图作者马丁·卡姆，2022年出版[书评]

The Canadian Field-Naturalist Pub Date : 2023-06-21 DOI: 10.22621/cfn.v136i4.3235

W. Halliday

引用次数: 0

American Marten (Martes americana) and Northern Goshawk (Accipiter gentilis) simultaneously attack Gray Squirrel (Sciurus carolinensis) 美洲貂(Martes americana)和北方苍鹰(Accipiter gentilis)同时攻击灰松鼠(Sciurus carolinensis)。

The Canadian Field-Naturalist Pub Date : 2023-06-21 DOI: 10.22621/cfn.v136i4.3005

B. Graves, Suzanne Petschke

引用次数: 0

Red-eared Slider (Trachemys scripta elegans) nests in the Greater Toronto Area 红耳滑鼠(Trachemys scripta elegans)在大多伦多地区筑巢

The Canadian Field-Naturalist Pub Date : 2023-06-21 DOI: 10.22621/cfn.v136i4.2995

Marc Dupuis‐Désormeaux, Grace Van Alstyne, Maureen Mueller, Ruth Takayesu, Vince D’Elia, S. MacDonald

{"title":"Red-eared Slider (Trachemys scripta elegans) nests in the Greater Toronto Area","authors":"Marc Dupuis‐Désormeaux, Grace Van Alstyne, Maureen Mueller, Ruth Takayesu, Vince D’Elia, S. MacDonald","doi":"10.22621/cfn.v136i4.2995","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.2995","url":null,"abstract":"Red-eared Slider (Trachemys scripta elegans) is a non-native turtle found in abundance in Toronto’s wetlands as a result of pet releases. Although this species is known to reproduce successfully in southwestern Ontario, Canada, there is yet no evidence to suggest successful reproduction in the Greater Toronto Area (GTA). As part of a native turtle nest protection program, volunteers inadvertently placed nest protector boxes over four slider nests in 2021 and 10 nests in 2022. This gave us the opportunity to determine whether nests produced viable offspring and whether these hatchlings would emerge in the fall. The exact nesting date for each nest was recorded. In 2021, eight of the 41 eggs from the slider nests showed very late-stage arrested embryonic development. In 2022, one of the nests had four hatchlings out of their eggshells but still inside the nest cavity. It is unclear whether the hatchlings would emerge later in the fall or overwinter in the nest cavity and emerge the following spring. If the small population sampled accurately reflects what occurs in the GTA, complete egg development may be possible for this species in some years, in some locations, with the right local micro-climate and micro-habitat. We discuss implications for turtle nest protection in Toronto.","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89610409","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}

引用次数: 1

"Empire of Ants: the Hidden Worlds and Extraordinary Lives of Earth’s Tiny Conquerors" by Susanne Foitzik and Olaf Fritsche, translated by Ayça Türkoğlu, 2021 [book review] 《蚂蚁帝国:地球上微小征服者的隐秘世界和非凡生活》，作者:苏珊娜·福伊茨克和奥拉夫·弗里切，翻译:aya Türkoğlu, 2021年[书评]

The Canadian Field-Naturalist Pub Date : 2023-06-21 DOI: 10.22621/cfn.v136i4.3227

Heather A. Cray

引用次数: 0

Impact of anthropogenic disturbance on nesting Chimney Swift (Chaetura pelagica) including best practices for conservation 人为干扰对烟囱雨燕筑巢的影响及最佳保护措施

The Canadian Field-Naturalist Pub Date : 2023-06-21 DOI: 10.22621/cfn.v136i4.2963

Timothy F. Poole, B. Stewart, R. Stewart

{"title":"Impact of anthropogenic disturbance on nesting Chimney Swift (Chaetura pelagica) including best practices for conservation","authors":"Timothy F. Poole, B. Stewart, R. Stewart","doi":"10.22621/cfn.v136i4.2963","DOIUrl":"https://doi.org/10.22621/cfn.v136i4.2963","url":null,"abstract":"The effect of anthropogenic disturbance on nesting Chimney Swift (Chaetura pelagica) is poorly described. We review five case studies of anthropogenic disturbance around Chimney Swift nest sites caused by building construction, demolition, and maintenance activities in St. Adolphe, Manitoba. Chimney Swift behaviour and nest site activity did not appear to be overtly influenced by building demolition and construction conducted on adjacent buildings or lots within 13–30 m of nest chimneys. In contrast, Chimney Swift behaviour and breeding success appeared to be negatively affected by loud interior renovations and rooftop work conducted in or on the same building as the nest chimneys. The presence of humans on the roof of the nest building prevented Chimney Swifts from entering the nest site and reduced the overall rate of feeding young. Based on these observations, we provide conservation best practices for building construction and maintenance projects conducted within or on the same building as nest chimneys to help ensure protection of Chimney Swifts and their nesting habitat during the breeding season.","PeriodicalId":56136,"journal":{"name":"The Canadian Field-Naturalist","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87256603","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}

引用次数: 0