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89 results for “tree plot”
Tree Species Abundances by Plot at HJA, HFR, BCI, CWT, LUQ, and NWT
Patterns of biodiversity, such as the increase toward the tropics and the peaked curve during ecological succession, are fundamental phenomena for ecology. Such patterns have multiple, interacting causes, but temperature emerges as a dominant factor across organisms from microbes to trees and mammals, and across terrestrial, marine, and freshwater environments. However, there is little consensus on the underlying mechanisms, even as global temperatures increase and the need to predict their effects becomes more pressing. The purpose of this project is to generate and test theory for how temperature impacts biodiversity through its effect on biochemical processes and metabolic rate. A combination of standardized surveys in the field and controlled experiments in the field and laboratory measure diversity of three taxa -- trees, invertebrates, and microbes -- and key biogeochemical processes of decomposition in seven forests distributed along a geographic gradient of increasing temperature from cold temperate to warm tropical. This dataset contains plant species abundances of trees in a group of five Gentry plots set up at each of the six test sites (HJA, HFR, LUQ, BCI, CWT, NWT). These plots were set up by the Enquist Lab (PI, Brian Enquist) from the University of Arizona to measure annual tree growth as part of a macrosystems biodiversity and latitude project supported by the National Science Foundation under Cooperative Agreement DEB#1065836. This file was created using R code run on the Macroplots Tree Growth Data file.
Tree Species Richness by Plot at HJA, HFR, BCI, CWT, LUQ, and NWT
Patterns of biodiversity, such as the increase toward the tropics and the peaked curve during ecological succession, are fundamental phenomena for ecology. Such patterns have multiple, interacting causes, but temperature emerges as a dominant factor across organisms from microbes to trees and mammals, and across terrestrial, marine, and freshwater environments. However, there is little consensus on the underlying mechanisms, even as global temperatures increase and the need to predict their effects becomes more pressing. The purpose of this project is to generate and test theory for how temperature impacts biodiversity through its effect on biochemical processes and metabolic rate. A combination of standardized surveys in the field and controlled experiments in the field and laboratory measure diversity of three taxa -- trees, invertebrates, and microbes -- and key biogeochemical processes of decomposition in seven forests distributed along a geographic gradient of increasing temperature from cold temperate to warm tropical. This dataset contains species richness of trees in a group of five Gentry plots set up at each of the six test sites (HJA, HFR, LUQ, BCI, CWT, NWT). These plots were set up by the Enquist Lab (PI, Brian Enquist) from the University of Arizona to measure annual tree growth as part of a macrosystems biodiversity and latitude project supported by the National Science Foundation under Cooperative Agreement DEB#1065836. This file was created using R code run on the Macroplots Tree Growth Data file.
Dendrometer Data for Trees in Gentry Plots at CWT, HFR, BCI, LUQ, HJA, and NWT
Patterns of biodiversity, such as the increase toward the tropics and the peaked curve during ecological succession, are fundamental phenomena for ecology. Such patterns have multiple, interacting causes, but temperature emerges as a dominant factor across organisms from microbes to trees and mammals, and across terrestrial, marine, and freshwater environments. However, there is little consensus on the underlying mechanisms, even as global temperatures increase and the need to predict their effects becomes more pressing. The purpose of this project is to generate and test theory for how temperature impacts biodiversity through its effect on biochemical processes and metabolic rate. A combination of standardized surveys in the field and controlled experiments in the field and laboratory measure diversity of three taxa -- trees, invertebrates, and microbes -- and key biogeochemical processes of decomposition in seven forests distributed along a geographic gradient of increasing temperature from cold temperate to warm tropical. This dataset contains dendrometer data for trees in the five Gentry subplots at each experimental site. These plots were installed by the Enquist Lab and the University of Arizona as part of this macrosystems biodiversity and latitude project supported by the National Science Foundation under Cooperative Agreement DEB#1065836.
LBA-ECO CD-08 Tree Diameter Measurements, Jacaranda Plots, Manaus, Brazil: 1999-2001
This data set provides diameter at breast height (DBH) measurements made of trees in a dense terra-firme tropical moist forest at the ZF-2 Experimental Station, 90 km north of Manaus, Brazil. DBH was measured over two transects (East to West and North to South) which were established in 1996 by the Jacaranda Project (agreement between the National Institute for Research in the Amazon (INPA) and the Japan International Cooperation Agency, JICA). For each tree, a metal dendrometer band was fixed to the trunk and growth in circumference was measured monthly with digital calipers. The transects measured 20-m x 2500-m, and were stratified by plateau, slope, and baixio (lowland areas near small streams). Topography location, distance along the transect, height at which the band was installed, local tree name, and field notes are also provided in the data files. Measurements were taken between June 1999 and December 2001.
Census data from 65 tree plots in Panama, 1994-2015
<p>These are data from 65 tree plots in Panama established over 1994-2014; 43 of the plots have been recensused, while 22 plots have just a single census. Details of census methods are described in Condit (1998) and Condit et al. (2013). The 65 plots here are mostly 1 ha in area, though several are 0.32 ha, one is 4 ha, and one is 6 ha. Those two larger censuses are the Sherman and Cocoli plots described in Condit et al. (2004). A companion data archive includes all data from the Barro Colorado 50-ha plot (Condit et al. 2019).</p> <p>The PIs would like to be informed of papers resulting from the marena plot data. Depending on our level of interest and how much a paper depends on the plots, co-authorship might be requested.</p> References <ul> <li>Condit, R., Engelbrecht, B. M. J., Pino, D., Pérez, R., and Turner, B. L. 2013. Species distributions in response to individual soil nutrients and seasonal drought across a community of tropical trees. Proceedings of the National Academy of Sciences 110:5064–5068. pdf http://conditdatacenter.org/pdfs/ConditEtAlPNAS2013.pdf.</li> <li>Condit, R., 1998. Tropical Forest Census Plots: Methods and Results from Barro Colorado Island, Panama and a Comparison with Other Plots. Springer-Verlag, Berlin. pdf http://conditdatacenter.org/pdfs/Condit_1998_CensusPlotsmethodsBook.pdf.</li> <li>Condit R., Perez, R., Aguilar, S., Lao, S., Foster, R., Hubbell, S.P. 2019. Complete data from the Barro Colorado 50-ha plot: 423617 trees, 35 years, 2019 version. https://doi.org/10.15146/5xcp-0d46. <ul> <li> <ul> <li>Condit, R., Aguilar, S., Hernandez, A., Pérez, R., Lao, S., Angehr, G., Hubbell, S., and Foster, R. 2004. Tropical forest dynamics across a rainfall gradient and the impact of an El Niño dry season. Journal of Tropical Ecology 20:51–72. pdf http://conditdatacenter.org/pdfs/Condit%20et%20al_2004_J.of%20Trop.Eco.pdf.</li> </ul> </li> </ul> </li> </ul>
Complete data from the Barro Colorado 50-ha plot: 423617 trees, 35 years
<p>The 50-ha plot at Barro Colorado Island was initially demarcated and fully censused in 1982, and has been fully censused 7 times since, every 5 years from 1985 through 2015 (Hubbell and Foster 1983, Hubbell et al. 1990, Condit et al. 2012, Condit et al. 2017). Every measurement of every stem over 8 censuses is included in this archive. Most users will need only the 8 R Analytical Tables in the format <i>tree</i>, which come here zipped together into a single archive (bci.tree.zip), plus the single R Species Table. Additional tables cover all individuals stems, additional measurements at mulitple positions on some stems, and the full database in original MySQL format. This is the 2019 version of the database, frozen as of 30 May 2019, replacing the 2012 Smithsonian archive (http://dx.doi.org/10.5479/data.bci.20130603). There are unauthorized versions of the BCI database available elsewhere. This is the only version approved by the lead investigators (Condit and Hubbell).</p> <p>PIs Condit and Hubbell would like to be informed of papers resulting from the BCI plot data. Depending on our level of interest and how much a paper depends on the BCI plot, co-authorship might be requested.</p> <p>Please cite this archive as</p> <p>Condit R., Perez, R., Aguilar, S., Lao, S., Foster, R., Hubbell, S.P. 2019. Complete data from the Barro Colorado 50-ha plot: 423617 trees, 35 years, 2019 version.</p> <p>along with this URL and DOI, which are permanent.</p> References <ul> <li>Hubbell, S. P. and Foster, R. B. 1983. Diversity of canopy trees in a neotropical forest and implications for conservation. Pp. 25-41 in Tropical Rain Forest: Ecology and Management, Whitmore, T., Chadwick, A., and Sutton, A. (Eds.). The British Ecological Society.</li> <li>Hubbell, S. P., Condit, R., and Foster, R. B. 1990. Presence and absence of density dependence in a Neotropical tree community. Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences Pages 269–281. pdf http://conditdatacenter.org/pdfs/HubbellConditFoster.PhilTrans1990.pdf</li> <li>Condit, R., 1998. Tropical Forest Census Plots: Methods and Results from Barro Colorado Island, Panama and a Comparison with Other Plots. Springer-Verlag, Berlin. pdf Condit_1998_CensusPlotsmethodsBook.pdf.</li> <li>Harms, K., Condit, R., Hubbell, S., and Foster, R. 2001. Habitat associations of trees and shrubs in a 50-ha Neotropical forest plot. Journal of Ecology 89:947–959. pdf http://conditdatacenter.org/pdfs/Condit_harmsetal.jecol.2001.pdf</li> <li>Condit, R., Chisholm, R. A., and Hubbell, S. P. 2012. Thirty years of forest census at Barro Colorado and the importance of immigration in maintaining diversity. PLoS ONE 7:e49826. pdf http://conditdatacenter.org/pdfs/ConditChisholmHubbell2012.pdf</li> <li>Condit, R., Lao, S., Singh, A., Esufali, S., and Dolins, S. 2014. Data and database standards for permanent forest plots in a global network. Forest Ecology and Management, 316: 21-31. pdf http://conditdatacenter.org/pdfs/ConditEtAl_FORECO2014.pdf</li> <li>Cushman, K., Muller-Landau, H. C., Condit, R. S., and Hubbell, S. P. 2014. Improving estimates of biomass change in buttressed trees using tree taper models. Methods in Ecology and Evolution, 5:573–582. pdf http://conditdatacenter.org/pdfs/CushmanConditEtAl_2014_MEE.pdf</li> <li>Condit, R., Pérez, R., Aguilar, S., Lao, S., and Hubbell, S. P. 2017. Demographic trends and climate over 35 years in the Barro Colorado 50 ha plot. Forest Ecosystems 4:1–13. pdf http://conditdatacenter.org/pdfs/Condit_et_al-2017-Forest_Ecosystems.pdf</li> <li>Condit R., Perez, R., Aguilar, S., Lao, S., Foster, R., Hubbell, S.P. 2019. BCI 50-ha plot taxonomy, 2019 version. DataONE Dash, Dataset, https://doi.org/10.15146/R3FH61.</li> </ul>
Fig. 1 Maximum likelihood tree inferred using the rpb2 in New endemic Fusarium species hitch-hiking with pathogenic Fusarium strains causing Panama disease in small-holder banana plots in Indonesia
Fig. 1 Maximum likelihood tree inferred using the rpb2 gene region of the Indonesian isolates in the Fusarium fujikuroi species complex (FFSC), Fusarium incarnatum-equiseti species complex (FIESC), Fusarium sambucinum species complex (FSSC), and Fusarium oxysporum species complex (FOSC) isolates from a previous study (Maryani et al. 2019). Bootstrap support values and Bayesian posterior probabilities are given at each node. The tree is rooted to Fusarium acuminatum (NRRL 54210) and Fusarium heterosporum (NRRL 20692).
Plot Data from Tree Species Inventory in a Nigerian Rainforest v1.1.0
<p>These are plot data from fifteen 40 m by 40 m sample plots established in Oban Division of Cross River National Park, Nigeria, between 23<sup>rd</sup> August 2019 and 9<sup>th</sup> September 2019. We have also included data summaries and RStudio codes used for analysis and generating results for the manuscript entitled: "Impact of human foraging on tree diversity, composition and abundance in a tropical rainforest", submitted for publication as an original research article in Biotropica. All data and R code required to generate the results as shown in the manuscript have been included. </p>
Branch, leaf, and stomatal traits in relation to topography and tree size in the Amacayacu Forest Dynamics Plot
<p>Trait and tree-level data associated with the article: </p> <p><strong>Zuleta, D., Muller-Landau, H. C., Duque, A., Caro, N., Cardenas, D., Leon-Pelaez, J. D., & Feeley, K. J. (In press). Interspecific and intraspecific variation of tree branch, leaf, and stomatal traits in relation to topography in an aseasonal Amazon forest. Functional Ecology.</strong></p> <p>Please contact Daniel Zuleta for further details (dfzuleta@gmail.com).</p>
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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