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树柏实验室档案
树木年代学实验室存档项目
"The Effects of Periodical Cicadas (Magicicada spp.)对南印第安纳州树木年轮生长的研究.(格雷厄姆·毕晓普)
Abstract
The purpose of this study is to investigate the effects of Brood X periodical cicadas (Magicicada spp.) on annual growth increment in hardwood trees throughout the southern region of Indiana. Twenty-one study sites have been established in proximity to Bloomington, Indiana. We have selected 25 trees on each site (441 trees total) and installed dendrometer bands on all of the trees. Twenty-three species are represented in this analysis. Study areas include several forest settings (i.e.河漫滩、高地、洼地等.). We took two cores per tree at breast height (1.距离地面4米)和一个5.15mm瑞典增量钻孔机. The annual rings on these cores will be crossdated, measured, and statistically analyzed to produce a correlation between yearly treering growth and periodical cicada damage to the trees. 完成实验室分析后, we will examine the effects of periodical cicadas on the incremental growth of all the sampled species.
"Stand-Age Structure and Disturbance History of the Big Thicket National Preserve: Examining Successional Dynamics and the Role of Disturbance.(克里斯托弗·金特里)
相关文章
"Dendroclimatological response of selected species from Hoosier National Forest.(达林·凯利)
"Dating a Landfill Contamination Site in Northern Indiana Using Dendrochronology" (Polly Mitchell)
"Spring Ephemeral Plant Diversity as it Relates to Gap Dynamics in Vigo County, Indiana.(乔迪·法雷尔·斯帕克斯)
Abstract
Dendrochronological techniques were used to quantify canopy gaps in Indiana to determine the effect of this disturbance on spring ephemeral diversity. Canopy gaps were selected within seven pre-existing plots that were established as early as 25 years ago. Storm data was collected and overlaid on an aerial photo of the county to identify potential sources of gaps. Climate data (temperature and precipitation) was used to visually determine if years of suppression were due to climate rather than gap effects. Release and suppression criteria were used to identify canopy gaps and the trees responses. Canopy gaps as recorded by ring-width release were compared to plant diversity data through time. Gaps were mainly created by one tree and were on average 330 m2 in size. At present, we found a decrease in diversity of spring ephemerals at the family, genus, 以及过去25年的物种水平. On average, Acer saccharum on this site experienced three major gap events in their lifetime and are sensitive to gap dynamics with numerous suppressions and releases in the trees. Fagus grandifolia is also sensitive to gap dynamics residing in the understory for several years. 黄樟、栎属.和Carya sp. are not sensitive to canopy gaps, rarely if ever recording them in their tree rings. We are continuing to examine the relationship between these gap events and spring ephemeral diversity.
"Broad Scale Spatial Modeling of Pandora Moth Outbreaks in the United States.(伊德里萨·蒂莫戈)
ISU Dendro实验室存档演示
- Bishop, G.I. and Speer, J.H. (2006) Periodical Cicadas and Tree-Ring Growth in Greene-Sullivan State Forest, Indiana. 年度会议, The Association of American Geographers, Chicago, IL.
- Gentry, C.M和Speer, J.H. (2006) A Preliminary Analysis of Climatic Controls on Pinus taeda L. (Loblolly Pine) in the Turkey Creek Unit of the Big Thicket National Preserve. 年度会议, The Association of American Geographers, Chicago, IL.
- 斯帕克斯·法雷尔，J. K.斯皮尔，J.H. (2006) A Dendroecological Approach to Quantifying Midwestern Forest Canopy Gaps and Diversity Change. 年度会议, The Association of American Geographers, Chicago, IL.
- Bishop, G.I., Speer, J.H.克雷，K. (2005) Preliminary Analysis of the Effects of Periodical Cicadas on Tree Growth in Southern Indiana. 美国林务员协会，沃斯堡，德克萨斯州.
- Gentry, C.M, Brown, P.M., Aldrich, S., Bauer, J., Kernan, J., Lusteck, R., McEwan, R.马丁内斯，P., Shapiro, L.斯普林格，C.和维宁，M. (2005) Reanalysis of the fire history in Pinus resinosa stands of the Mississippi Headwaters, 伊塔斯卡州立公园, Minnesota. 年度会议, The Association of American Geographers, Denver, CO.
- 斯帕克斯·法雷尔，J. K.斯皮尔，J.H. (2005) Dendrochronology as a proxy for reconstructing Midwestern forest gaps and spring ephemeral composition change. 美国林务员协会，沃斯堡，德克萨斯州.
- 斯帕克斯·法雷尔，J. K.斯皮尔，J.H. (2005) Dendrochronology as a proxy for reconstructing Midwestern forest gaps and spring ephemeral composition change. Indiana Academy of Sciences Research Presentations, West Terre Haute, IN.
- Gentry, C.M., Jensen, R.R., Speer, J.H.狼，S.F. (2004) Spatial Analysis of Cation Reactions to Prescribed Burning in an Oak Savanna Ecosystem of Northwestern Indiana. 年度会议, The Association of American Geographers, Philadelphia, PA.
- 斯帕克斯·法雷尔，J. K.斯皮尔·J.H. (2004) Preliminary results of plant diversity changes in two Vigo County forests. Indiana Academy of Sciences Research Presentations, Hanover, IN.
- 斯帕克斯·法雷尔，J.K., Tiemgo, I.斯皮尔，J.H. (2004) Identification of Pandora Moth Hazard for the Western United States Using Geographic Information Systems. Association of American Geographers, Philadelphia, PA.
- Gentry, C.M., Speer, J.H., Jensen, R.R.狼，S.F. (2003) Decrease in Soil Nutrient Availability after Prescribed Fire in an Oak Savanna Ecosystem of Northern Indiana. 年度会议, West Lakes/East Lakes Division of the Association of American Geographers, Kalamazoo, MI.
- Gentry, C.M., Jensen, R.R., Speer, J.H.狼，S.F. (2003) The Effect of Prescribed Burns on Cation Exchange Capacity in an Oak Savanna Ecosystem. 99th 年度会议, The Association of American Geographers, New Orleans, LA.