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Comparing Multiscale Sampling Designs: Taking an Experimental Approach

Thomas J. Stohlgren

in Measuring Plant Diversity: Lessons from the Field

Published in print:
2006
Published Online:
September 2007
ISBN:
9780195172331
eISBN:
9780199790395
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195172331.003.0006
Subject:
Biology, Plant Sciences and Forestry

This chapter demonstrates the process of comparing various multi-scale sampling techniques. This was an actual field study, so there were specific sampling objectives, but the objectives were broad ... More


Case Study: Testing a Nested-Intensity Sampling Design

Thomas J. Stohlgren

in Measuring Plant Diversity: Lessons from the Field

Published in print:
2006
Published Online:
September 2007
ISBN:
9780195172331
eISBN:
9780199790395
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195172331.003.0017
Subject:
Biology, Plant Sciences and Forestry

The variability inherent in all natural landscapes poses a significant challenge in designing accurate and complete inventories of plant diversity given typical cost constraints. One option is to ... More


Late twentieth-century patterns and trends in Amazon tree turnover

Oliver L. Phillips, Timothy R. Baker, Luzmila Arroyo, Niro Higuchi, Timothy Killeen, William F. Laurance, Simon L. Lewis, Jon Lloyd, Yadvinder Malhi, Abel Monteagudo, David A. Neill, Percy Nuñez Vargas, J. Natalino N. Silva, Rodolfo Vásquez Martinez, Miguel Alexiades, Samuel Almeida, Sandra Brown, Jerome Chave, James A. Comiskey, Claudia I. Czimczik, Anthony Di Fiore, Terry Erwin, Caroline Kuebler, Susan G. Laurance, Henrique E. M. Nascimento, Jean Olivier, Walter Palacios, Sandra Patiño, Nigel Pitman, Carlos A. Quesada, Mario Saldias, Armando Torres Lezama, and Barbara Vinceti

in Tropical Forests and Global Atmospheric Change

Published in print:
2005
Published Online:
September 2007
ISBN:
9780198567066
eISBN:
9780191717888
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198567066.003.0010
Subject:
Biology, Plant Sciences and Forestry

Previous work found that tree turnover, biomass, and large liana densities increased in mature tropical forests in the late 20th century, indicating a concerted shift in forest ecological processes. ... More


Late twentieth-century trends in the biomass of Amazonian forest plots

Timothy R. Baker, Oliver L. Phillips, Yadvinder Malhi, Samuel Almeida, Luzmila Arroyo, Anthony Di Fiore, Terry Erwin, Niro Higuchi, Timothy J. Killeen, Susan G. Laurance, William F. Laurance, Simon L. Lewis, Abel Monteagudo, David A. Neill, Percy Núnez Vargas, Nigel C. A. Pitman, J. Natalino M. Silva, and Rodolfo Vásquez Martínez

in Tropical Forests and Global Atmospheric Change

Published in print:
2005
Published Online:
September 2007
ISBN:
9780198567066
eISBN:
9780191717888
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198567066.003.0011
Subject:
Biology, Plant Sciences and Forestry

This chapter discusses a previous study by Phillips et al. (1998) on biomass changes in Amazonian permanent sample plots which has been used to infer the presence of a regional carbon sink, ... More


Late twentieth-century trends in the structure and dynamics of South American forests

Simon L. Lewis, Oliver L. Phillips, Timothy R. Baker, Jon Lloyd, Yadvinder Malhi, Samuel Almeida, Niro Higuchi, William F. Laurance, David A. Neill, J. Natalino M. Silva, John Terborgh, Armando Torres Lezama, Rodolfo Vásquez Martínez, Sandra Brown, Jerome Chave, Caroline Kuebler, Percy Núnez Vargas, and Barbara Vinceti

in Tropical Forests and Global Atmospheric Change

Published in print:
2005
Published Online:
September 2007
ISBN:
9780198567066
eISBN:
9780191717888
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198567066.003.0012
Subject:
Biology, Plant Sciences and Forestry

Widespread recent changes in the ecology of old-growth tropical forests have been documented, in particular an increase in stem turnover (pan-tropical), and an increase in above-ground biomass ... More


Single-Scale Sampling

Thomas J. Stohlgren

in Measuring Plant Diversity: Lessons from the Field

Published in print:
2006
Published Online:
September 2007
ISBN:
9780195172331
eISBN:
9780199790395
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195172331.003.0004
Subject:
Biology, Plant Sciences and Forestry

This chapter provides examples and discusses several single-scale sampling techniques for measuring plant diversity. Common techniques include: searching, where a species list is obtained for a site, ... More


Multiscale Sampling

Thomas J. Stohlgren

in Measuring Plant Diversity: Lessons from the Field

Published in print:
2006
Published Online:
September 2007
ISBN:
9780195172331
eISBN:
9780199790395
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195172331.003.0005
Subject:
Biology, Plant Sciences and Forestry

This chapter reveals that sampling plant diversity at multiple spatial scales may allow for a deeper understanding of relationships between species distributions and composition shifts relative to ... More


Case Study: Comparing Rangeland Vegetation Sampling Techniques

Thomas J. Stohlgren

in Measuring Plant Diversity: Lessons from the Field

Published in print:
2006
Published Online:
September 2007
ISBN:
9780195172331
eISBN:
9780199790395
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195172331.003.0007
Subject:
Biology, Plant Sciences and Forestry

As what was learned from Chapter 6, studies that compare older sampling techniques to newer ones sometimes are necessary to advance the science of plant ecology. This chapter presents another ... More


Case Study on Multiphase and Multiscale Sampling

Thomas J. Stohlgren

in Measuring Plant Diversity: Lessons from the Field

Published in print:
2006
Published Online:
September 2007
ISBN:
9780195172331
eISBN:
9780199790395
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195172331.003.0008
Subject:
Biology, Plant Sciences and Forestry

Only a small portion of any landscape can be affordably sampled. Estimating the patterns of plant diversity in the much larger, unsampled landscape is important and challenging. For example, many ... More


Case Study: Evaluating the Effects of Grazing and Soil Characteristics on Plant Diversity

Thomas J. Stohlgren

in Measuring Plant Diversity: Lessons from the Field

Published in print:
2006
Published Online:
September 2007
ISBN:
9780195172331
eISBN:
9780199790395
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195172331.003.0011
Subject:
Biology, Plant Sciences and Forestry

Paired-plot designs are commonly used to compare the effects of fire, grazing, or other disturbances. Plots are placed in treated (or disturbed) and untreated (or control) sites, and measured ... More


Concepts for Assessing Temporal Changes in Plant Diversity

Thomas J. Stohlgren

in Measuring Plant Diversity: Lessons from the Field

Published in print:
2006
Published Online:
September 2007
ISBN:
9780195172331
eISBN:
9780199790395
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195172331.003.0015
Subject:
Biology, Plant Sciences and Forestry

There are several considerations in developing appropriate strategies for monitoring plant diversity at landscape scales. Many plant ecologists and land managers are rightly concerned with either ... More


Graphical Presentation of Results

Christopher J. Lortie, Joseph Lau, and Marc J. Lajeunesse

in Handbook of Meta-analysis in Ecology and Evolution

Published in print:
2013
Published Online:
October 2017
ISBN:
9780691137285
eISBN:
9781400846184
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691137285.003.0021
Subject:
Biology, Ecology

Visualizations of data are one of the most compelling means to effectively communicate ideas in science. Graphs present data in a visual form enabling the reader to read values, identify patterns, ... More


Quantifying Abundance: Density and Cover

Steven N. Murray, Richard F. Ambrose, and Megan N. Dethier

in Monitoring Rocky Shores

Published in print:
2006
Published Online:
March 2012
ISBN:
9780520247284
eISBN:
9780520932715
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520247284.003.0006
Subject:
Biology, Ecology

Most rocky intertidal zone field studies require quantification of abundance, of either individual species or other taxonomic units of the investigator's choice. Data indicating species abundances ... More


Quantifying Abundance: Biomass

Steven N. Murray, Richard F. Ambrose, and Megan N. Dethier

in Monitoring Rocky Shores

Published in print:
2006
Published Online:
March 2012
ISBN:
9780520247284
eISBN:
9780520932715
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520247284.003.0007
Subject:
Biology, Ecology

Species abundances in rocky intertidal zones are generally expressed as numerical density or counts as cover. Occasionally, however, the goals of a sampling program require that the biomass of rocky ... More


Hydraulic Rating and Habitat Simulation Methods

Angela H. Arthington

in Environmental Flows: Saving Rivers in the Third Millennium

Published in print:
2012
Published Online:
May 2013
ISBN:
9780520273696
eISBN:
9780520953451
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520273696.003.0010
Subject:
Biology, Biodiversity / Conservation Biology

Hydraulic rating methods define the relationship between flow volume (discharge) and the amount and type of habitat provided during the passage of flow along a stream channel. Methods include wetted ... More


Plot and transect censuses

Tiffany M. Doan

in Reptile Ecology and Conservation: A Handbook of Techniques

Published in print:
2016
Published Online:
June 2016
ISBN:
9780198726135
eISBN:
9780191825934
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198726135.003.0017
Subject:
Biology, Biodiversity / Conservation Biology, Animal Biology

This chapter describes the differences between plot and transect techniques in general, including requirements for robust plot and transect surveys, the process of site selection, and the common ... More


Visualizing Your Data

Andrew P. Beckerman, Dylan Z. Childs, and Owen L. Petchey

in Getting Started with R: An Introduction for Biologists

Published in print:
2017
Published Online:
March 2017
ISBN:
9780198787839
eISBN:
9780191829659
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198787839.003.0004
Subject:
Biology, Biomathematics / Statistics and Data Analysis / Complexity Studies

Looking at your data is about the most important thing you can do. A good graph will often tell you the answer to your question, and statistics will then just confirm what you already see. We always ... More


Are flowers under selective pressure to increase pollinator attention?

Beverley Glover

in Understanding Flowers and Flowering, Second Edition

Published in print:
2014
Published Online:
April 2014
ISBN:
9780199661596
eISBN:
9780191779473
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199661596.003.0019
Subject:
Biology, Plant Sciences and Forestry, Ecology

The underlying assumption of much of the work on flower development and morphology is that these features serve to increase the attractiveness of the flower to pollinating animals, thus maximizing ... More


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