Studies by Undergraduate Researchers at Guelph最新文献_第10页

An epibiont mediated increase in the susceptibility of Mytilus edulis to predation by Nucella lapillus 外生体介导的紫贻贝(Mytilus edulis)对紫核菌(Nucella lapillus)捕食敏感性的增加

Studies by Undergraduate Researchers at Guelph Pub Date : 2010-10-05 DOI: 10.21083/SURG.V4I1.1114

J. Johansson

{"title":"An epibiont mediated increase in the susceptibility of Mytilus edulis to predation by Nucella lapillus","authors":"J. Johansson","doi":"10.21083/SURG.V4I1.1114","DOIUrl":"https://doi.org/10.21083/SURG.V4I1.1114","url":null,"abstract":"In marine organisms, the relationship that arises between two individuals where one organism biofouls the surface of a typically larger host organism is defined as epibiosis. Colonization of an organism by an epibiont can severely limit the feeding and reproductive abilities of the host and reduce overall fitness. Therefore, it is important to consider the benefits, if any, that the basibiont gains from this epibiotic relationship. In previous experiments, it was observed that barnacle epibionts protected Mytilus edulis from predation by Carcinus maenas, an intertidal predator. This study uses a choice experiment to deduce whether Semibalanus balanoides can mediate predation by another intertidal predator, the dogwhelk Nucella lapillus. N. lapillus preferred the substrate of barnacle-covered mussels to smooth-surface mussels, however specific preference to predate on these mussels was inconclusive from the results. The presence of S. balanoides on the shell surface of M. edulis decreased defensive behaviors, suggesting that the basibiont may be more vulnerable to predation because of this epibiotic relationship. If so, the relationship may border on parasitism if M. edulis fitness is significantly reduced.","PeriodicalId":413751,"journal":{"name":"Studies by Undergraduate Researchers at Guelph","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134143761","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: 2

Factors affecting housing-seeking difficulty for battered women: an investigation of racial discrimination and attitudes held by landlords 影响受虐妇女找房困难的因素:对房东种族歧视和态度的调查

Studies by Undergraduate Researchers at Guelph Pub Date : 2010-10-05 DOI: 10.21083/SURG.V4I1.1203

M. Ghabrial, P. Barata

{"title":"Factors affecting housing-seeking difficulty for battered women: an investigation of racial discrimination and attitudes held by landlords","authors":"M. Ghabrial, P. Barata","doi":"10.21083/SURG.V4I1.1203","DOIUrl":"https://doi.org/10.21083/SURG.V4I1.1203","url":null,"abstract":"Research has revealed that battered women often face difficulty when searching for long-term housing, which in turn, often leads to homelessness. Because housing discrimination has also been found in studies regarding racial prejudice, this research was designed to investigate a potential interaction between the effects of racial discrimination and discrimination against battered women in housing-seeking. In a telephone audit study, two confederates – one with a Canadian accent and one with a Caribbean accent – called 180 landlords who had advertised for a one-bedroom apartment, and disclosed one of three living conditions (i.e., a shelter for battered women, a friend’s house, no disclosure), while asking if the apartment was still available. The apartment was 4.50 times less likely to be reported as available when the confederate called claiming to be staying at a shelter than when she did not disclose a living situation. The accent of the confederate had no main effect and there was no interaction between accent and current living condition. A separate sample of 41 landlords was surveyed and asked for general views on battered women, risks that deterred them from wanting to rent to battered women, and sources for the information on which these concerns were based. The results of the studies suggest that landlords feel justified in discriminating against battered women; however, they are aware that racial discrimination is illegal and thus avoid this behaviour. Factors that could potentially make landlords more comfortable about renting to battered women are discussed.","PeriodicalId":413751,"journal":{"name":"Studies by Undergraduate Researchers at Guelph","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121948050","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

Film as a reflection of society: interracial marriage and Stanley Kramer’s Guess Who’s Coming to Dinner in late 1960s America 电影作为社会的反映:20世纪60年代末美国的跨种族婚姻和斯坦利·克莱默的《猜猜谁来吃晚餐》

Studies by Undergraduate Researchers at Guelph Pub Date : 2010-10-05 DOI: 10.21083/SURG.V4I1.1105

Katie Anderson

引用次数: 2

Freshwater scarcity and pricing in South Africa: conflicts between conservation and equity in the post-apartheid state 南非的淡水稀缺和定价:后种族隔离国家中保护与公平之间的冲突

Studies by Undergraduate Researchers at Guelph Pub Date : 2010-10-05 DOI: 10.21083/SURG.V4I1.1196

Liane Langstaff

{"title":"Freshwater scarcity and pricing in South Africa: conflicts between conservation and equity in the post-apartheid state","authors":"Liane Langstaff","doi":"10.21083/SURG.V4I1.1196","DOIUrl":"https://doi.org/10.21083/SURG.V4I1.1196","url":null,"abstract":"South Africa faces water scarcity due to the contribution of climatic, geographic, and human variables. As reported by Statistics South Africa, persistent water scarcity and distributional inequity has arisen in a changing political arena from the period of colonization to the most recent chapter of South African governance from 1994 onwards [1]. In the policy context of a state struggling with the legacy of apartheid, conflicts regarding the pricing of freshwater resources have arisen [2]. With discrepancies between the higher price for water required to promote efficiency and conservation, and the alternative pricing system that would meet the South Africa’s responsibility to improve distributional fairness, the most recent challenges took place between 1994 and 2000 [3]. Consequently, the predominant problem linked to South Africa’s freshwater resources is how to allocate water amongst the competing uses of long term environmental and human welfare, without compromising the needs of the country’s urban poor. One perspective, which can provide insight on the issue of water scarcity in South Africa, is free market environmentalism. This branch of economic thought supports a system of water markets with prices that reflect the true cost of providing the resources along with subsidies to address the needs of the poor. Based on an evaluation of the impact of market incentives in South Africa since the 2001 market reforms, it has been determined that a pragmatic, free market environmentalist approach to water can yield economically efficient outcomes for the resource while mitigating distributional equity issues.","PeriodicalId":413751,"journal":{"name":"Studies by Undergraduate Researchers at Guelph","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117109698","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: 3

A strip-tease act conducted in pink limelight: Salvador Dali, George Orwell, and the construction of a surreal/ist self 在粉红色的聚光灯下进行的脱衣舞表演:萨尔瓦多·达利，乔治·奥威尔，以及超现实主义自我的建构

Studies by Undergraduate Researchers at Guelph Pub Date : 2010-10-05 DOI: 10.21083/SURG.V4I1.1204

Daniella E. Sanader

引用次数: 0

A taste of his own medicine: analyzing Émile Zola’s interpretation of Claude Bernard’s experimental method 以其人之道还治其人之身:分析Émile左拉对克劳德·伯纳德实验方法的诠释

Studies by Undergraduate Researchers at Guelph Pub Date : 2010-10-05 DOI: 10.21083/SURG.V4I1.1208

Pascale Rabideau

引用次数: 1

Anatomical features of Bougainvillea (Nyctaginaceae) 九重葛属植物的解剖学特征

Studies by Undergraduate Researchers at Guelph Pub Date : 2010-09-22 DOI: 10.21083/SURG.V4I1.1239

Sarah Chew

引用次数: 7

Distinguishing black holes through their ringing 通过它们的光环来区分黑洞

Studies by Undergraduate Researchers at Guelph Pub Date : 2010-08-08 DOI: 10.21083/SURG.V4I1.1201

Shannon Potter, L. Lehner

引用次数: 0

Secondary equity offerings as a leading indicator of market performance 二级股票发行作为市场表现的领先指标

Studies by Undergraduate Researchers at Guelph Pub Date : 2010-02-07 DOI: 10.21083/surg.v3i2.1111

Jeffrey C. Cain, Kellen Walsh

引用次数: 0

Immunological control of coccidiosis in poultry 家禽球虫病的免疫控制

Studies by Undergraduate Researchers at Guelph Pub Date : 2010-02-06 DOI: 10.21083/SURG.V4I1.1100

K. R. Price, John R Barta

引用次数: 2