Journal of Natural Resources and Life Sciences Education最新文献_第8页

Differences in Forestry Students’ Perceptions across Study Years in a Brazilian Undergraduate Program 林业学生在巴西本科项目中不同学习年限的认知差异

Journal of Natural Resources and Life Sciences Education Pub Date : 2010-01-01 DOI: 10.4195/jnrlse.2010.0003

Javier Arevalo Barbara Jarschel, Sari Pitkänen, Liisa Tahvanainen, Jorma Enkenberg

{"title":"Differences in Forestry Students’ Perceptions across Study Years in a Brazilian Undergraduate Program","authors":"Javier Arevalo Barbara Jarschel, Sari Pitkänen, Liisa Tahvanainen, Jorma Enkenberg","doi":"10.4195/jnrlse.2010.0003","DOIUrl":"10.4195/jnrlse.2010.0003","url":null,"abstract":"Forestry higher curricula reform is being debated globally. This study examines the views of students on aspects related to forestry education and the profession, focusing on how these views differ across the study years of a higher education forestry program. The objective of the study was to investigate the differences across study years with regard to the students’ forestry-related concerns, the value they give to competencies and experiences, and their preferences with respect to future work and studies. The case study of a 5-year Brazilian undergraduate program was selected, analyzing the responses to a questionnaire of 268 students. Results indicate students in the later years of their study program have a much broader variety of forestry-related concerns, have a greater interest in choosing a different university for doing a Master's degree, and more often consider working as consultants upon graduation. Additionally, students in the later years give a higher importance to competencies related to traditional forestry areas (silviculture, management, policy), computer-related subjects (Forest Information Systems, statistics, computer skills), and generic communication competencies (oral and writing skills). On the contrary, students in the first years give a higher value to environmental and climate change–related issues and to international forestry, as well as to achieving their best. Our findings show there are numerous differences in students’ perceptions across the study years of a program. The consideration of these differences in the reform of forestry and life science curricula, aiming at increasing the attractiveness and effectiveness of the programs, is suggested.","PeriodicalId":100810,"journal":{"name":"Journal of Natural Resources and Life Sciences Education","volume":"39 1","pages":"94-101"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73050768","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: 5

Sage-Grouse and Coal-Bed Methane: Can They Coexist within the Powder River Basin? 松鸡与煤层气:能否在粉河流域共存?

Journal of Natural Resources and Life Sciences Education Pub Date : 2010-01-01 DOI: 10.4195/jnrlse.2009.0027

Michael B. Duncan

引用次数: 1

Enhancing Undergraduate Agro-Ecological Laboratory Employment through Experiential Learning 通过体验式学习促进农业生态实验室本科生就业

Journal of Natural Resources and Life Sciences Education Pub Date : 2010-01-01 DOI: 10.4195/jnrlse.2009.0017n

J. M. Grossman, M. Patel, L. E. Drinkwater

{"title":"Enhancing Undergraduate Agro-Ecological Laboratory Employment through Experiential Learning","authors":"J. M. Grossman, M. Patel, L. E. Drinkwater","doi":"10.4195/jnrlse.2009.0017n","DOIUrl":"10.4195/jnrlse.2009.0017n","url":null,"abstract":"We piloted an educational model, the Sustainable Agriculture Scholars Program, linking research in organic agriculture to experiential learning activities for summer undergraduate employees in 2007 and 2008. Our objectives were to: (1) further student understanding of sustainable agriculture research, (2) increase student interest in sustainable agriculture careers, and (3) use community service as a vehicle for learning. The three learning environments were on-farm and laboratory research settings, weekly meetings and field trips to discuss research and observe farming practices, and a service-learning project. We collected feedback from participants through a post-program focus-group style evaluation in Year 1 and pre/post individual evaluations with participants and a non-participant comparison group in Year 2. Students learned about linkages between research and practice within all environments. Farm visits were the primary learning site, specifically through observations of sustainable agriculture practices related to lab work and interactions with farmers. Students described how farm visits made lab work relevant; however, there were few instances describing how lab work was relevant to farming communities. Our preliminary findings from this pilot study suggest that participation in the program led to increased interest in sustainable agriculture careers and increased desire to pursue research in some students.","PeriodicalId":100810,"journal":{"name":"Journal of Natural Resources and Life Sciences Education","volume":"39 1","pages":"31-39"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4195/jnrlse.2009.0017n","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78021893","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: 9

Competing Interests, Economics, and Marine Fisheries Management: An Educational Case Study 竞争利益、经济与海洋渔业管理:一个教育案例研究

Journal of Natural Resources and Life Sciences Education Pub Date : 2010-01-01 DOI: 10.4195/jnrlse.2009.0035k

James T. Thorson, Jim Berkson, Brian Murphy

{"title":"Competing Interests, Economics, and Marine Fisheries Management: An Educational Case Study","authors":"James T. Thorson, Jim Berkson, Brian Murphy","doi":"10.4195/jnrlse.2009.0035k","DOIUrl":"10.4195/jnrlse.2009.0035k","url":null,"abstract":"Managing fish resources in the ocean, known as marine fisheries management, often involves disagreement among many groups of people: commercial fishers, recreational anglers, national and local conservationists, and several branches of government. While managing marine fisheries in federal waters, the federal government must rebuild marine fish populations while balancing the economic demands of these competing groups. Red snapper (Lutjanus campechanus) is a particularly useful example, involving more than 200,000 people and $80 million each year in the Gulf of Mexico. After a lawsuit won by conservation groups in 2007, the National Marine Fisheries Service was required to tighten management while selecting from many possible management tools. We envision that students will read this case study and participate in classroom discussion using the questions and teaching notes that are included. Students will then be divided between recreation and commercial user groups, and will advocate for their user group in a classroom role play in an attempt to persuade a third group: student resource managers. These student resource managers will ultimately select a set of allocation and management actions for the red snapper fishery that will decrease total catch as required by the 2007 court case, which can be compared with real-world decisions. This study aims to illustrate the complex conflicts and economic issues that surround fisheries management decisions. The learning objectives are: (1) to develop and demonstrate students’ ability to craft arguments in a debate, and (2) to build student experience working as a team doing research and planning an argument.","PeriodicalId":100810,"journal":{"name":"Journal of Natural Resources and Life Sciences Education","volume":"39 1","pages":"71-78"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4195/jnrlse.2009.0035k","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74841696","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

Cellular Absorption of Herbicides 除草剂的细胞吸收

Journal of Natural Resources and Life Sciences Education Pub Date : 2010-01-01 DOI: 10.4195/jnrlse.2009.0023w

Tracy M. Sterling, Deana Namuth-Covert

引用次数: 0

Organic Matter Application Can Reduce Copper Toxicity in Tomato Plants 施用有机质可降低番茄植株铜毒性

Journal of Natural Resources and Life Sciences Education Pub Date : 2010-01-01 DOI: 10.4195/jnrlse.2010.0002se

Brian Campbell

引用次数: 5

The T Assessment Tool: A Simple Metric for Assessing Multidisciplinary Graduate Education 评估工具:评估多学科研究生教育的简单指标

Journal of Natural Resources and Life Sciences Education Pub Date : 2010-01-01 DOI: 10.4195/jnrlse.2009.0004

P. V. August, J.M. Swift, D. Q. Kellogg, G. Page, P. Nelson, J. Opaluch, J. S. Cobb, C. Foster, A.J. Gold

{"title":"The T Assessment Tool: A Simple Metric for Assessing Multidisciplinary Graduate Education","authors":"P. V. August, J.M. Swift, D. Q. Kellogg, G. Page, P. Nelson, J. Opaluch, J. S. Cobb, C. Foster, A.J. Gold","doi":"10.4195/jnrlse.2009.0004","DOIUrl":"10.4195/jnrlse.2009.0004","url":null,"abstract":"<div>\u0000 Although there is considerable activity in developing assessment protocols for undergraduate learning, there are few established models for assessment of student progress in multidisciplinary doctoral-level graduate education. To resolve this impediment in tracking graduate student development, we created a simple assessment tool based on the concept of T competency that allows graduate students to articulate explicit learning goals in disciplinary and multidisciplinary research. Our instrument allows quantitative measurement of a student's self-perception of his/her knowledge and interest in multidisciplinary inquiry. We use our T assessment tool to measure graduate student progress in an NSF IGERT-funded graduate program in coastal ecosystem management. The T model provides us a nomenclature to articulate learning goals, a quantitative means to evaluate current and future learning targets and progress in reaching those targets, and gives us another measure of assessing overall graduate program effectiveness. Our T tool is an instrument that should have considerable utility in measuring knowledge and interest in multidisciplinary research across a range of disciplines and graduate programs.\u0000 </div>","PeriodicalId":100810,"journal":{"name":"Journal of Natural Resources and Life Sciences Education","volume":"39 1","pages":"15-21"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://acsess.onlinelibrary.wiley.com/doi/epdf/10.4195/jnrlse.2009.0004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89183816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Ruminant Grazing of Cover Crops: Effects on Soil Properties and Agricultural Production 覆盖作物反刍放牧对土壤性质和农业生产的影响

Journal of Natural Resources and Life Sciences Education Pub Date : 2010-01-01 DOI: 10.4195/jnrlse.2010.0003se

Hanna Poffenbarger

{"title":"Ruminant Grazing of Cover Crops: Effects on Soil Properties and Agricultural Production","authors":"Hanna Poffenbarger","doi":"10.4195/jnrlse.2010.0003se","DOIUrl":"10.4195/jnrlse.2010.0003se","url":null,"abstract":"Integrating livestock into a cropping system by allowing ruminant animals to graze cover crops may yield economic and environmental benefits. The effects of grazing on soil physical properties, soil organic matter, nitrogen cycling and agricultural production are presented in this literature review. The review found that grazing cover crops generally led to increased bulk density, especially in no-till systems. On the other hand, the negative effects of grazing on penetration resistance and aggregate stability were more prominent under conventional tillage than no-till. The deleterious effects of grazing on soil physical properties were most severe when grazing was implemented at high intensity and on wet soils. Microbial biomass C was higher under grazed conditions than ungrazed conditions. Nitrogen was found to be higher when cover crops were grazed than not grazed; however, this was only true for conventional tillage systems. Generally, grazing cover crops did not negatively affect primary crop yields. Cover crops provided nutritious forage for cattle and reduced feed costs by offsetting the use of hay or other pasture.","PeriodicalId":100810,"journal":{"name":"Journal of Natural Resources and Life Sciences Education","volume":"39 1","pages":"49-39"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4195/jnrlse.2010.0003se","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87452633","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: 6

New Media Received & Book Review 新媒体接收与书评

Journal of Natural Resources and Life Sciences Education Pub Date : 2010-01-01 DOI: 10.2134/jnrlse2010.391179x

Charles Francis

引用次数: 0

A Simple Approach for Demonstrating Soil Water Retention and Field Capacity 展示土壤保水和农田容量的简单方法

Journal of Natural Resources and Life Sciences Education Pub Date : 2010-01-01 DOI: 10.4195/jnrlse.2009.0036n

A. Howard, J. L. Heitman, D. Bowman

{"title":"A Simple Approach for Demonstrating Soil Water Retention and Field Capacity","authors":"A. Howard, J. L. Heitman, D. Bowman","doi":"10.4195/jnrlse.2009.0036n","DOIUrl":"10.4195/jnrlse.2009.0036n","url":null,"abstract":"It is difficult to demonstrate the soil water retention relationship and related concepts because the specialized equipment required for performing these measurements is unavailable in most classrooms. This article outlines a low-cost, easily visualized method by which these concepts can be demonstrated in most any classroom. Columns (62.5 cm tall) were constructed using 25, 2.5 cm tall sections of 7.62-cm (3-inch) i.d. polyvinyl chloride pipe, which were connected using transparent tape. Three different soil materials were packed to specified bulk densities in the columns, and saturated with water. These vertical columns were then allowed to drain into a simulated water table 2.5 cm above the bottom of the soil volume until drainage ceased. After drainage, columns were sectioned to determine water content distribution with depth along the column. It was assumed that matric potential was inversely related to height above the water table. Therefore, water content measurements and assumed potentials for each section provided data for a water retention curve with minimum potential of approximately –60 cm. During drainage, measurements of soil matric potential were taken at regular intervals using tensiometers installed within the column, validating assumptions about matric potential. Among soil materials tested, those with narrow particle-size distributions, ∼100% sand, gave the widest distribution of water contents in the observed matric potential ranges. This method, with proper explanation and execution, may be a valuable learning tool by which visual, auditory, and kinesthetic learners may be better able to understand the concepts pertaining to soil–water retention relationships.","PeriodicalId":100810,"journal":{"name":"Journal of Natural Resources and Life Sciences Education","volume":"39 1","pages":"120-124"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4195/jnrlse.2009.0036n","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87868138","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: 5