Schulze, M. 2023. Vegetative Phenology observations at the Andrews Experimental Forest, 2009 - Present Long-Term Ecological Research Andrews Forest LTER Site. [Database]. Available: https://andrewsforest-stage.forestry.oregonstate.edu/data/fsdb-data-catalog/TV075 Accessed 2026-05-10.

The vegetation phenology study is part of a larger effort to understand the influence of climate variability and change on trophic interactions in mountainous terrain. Phenology Core Sites were selected to capture the variation in elevation and topography across Lookout Creek watershed. Priority was given to sites with long-term air and soil temperature records (Reference stands) and previous phenology observations (Reference stands and stream gauging stations). Sixteen sites were established. At each site five individuals of from each 18 common species (if occurring within the site) from tree, shrub and herb layers were mapped and marked for observation. Weekly observations are conducted each year beginning in March or April depending on winter conditions and snowpack and continuing through June or July. Plant vegetative and reproductive phenophases are scored using a numbered system adapted to each plant species.

Temporal coverage: 2009-03-01 to 2022-07-25

Geographic coverage: HJ Andrews Experimental Forest

Spatial coverage:

Bounds: W -122.26077333, E -122.12174888, N 44.27447074, S 44.20664191

• The vegetation phenology study is part of a larger effort to understand the influence of climate variability and change on trophic interactions in mountainous terrain. The initial objectives are to investigate patterns of microclimate variability across Lookout Watershed and plant response to spatial and temporal variability in snowpack dynamics and winter and spring air and soil temperatures. The plant phenology efforts from 2009-2014 were coordinated with insect phenology and bird phenology sampling to improve understanding of how species across trophic levels respond to environmental variability, the extent to which climate variability may contribute to trophic asynchrony, as well as the potential for mountain microclimate diversity to buffer the effects of climate change. Over time, the research program will contribute to our understanding of how climate variability and change is influencing the timing and duration of the active growing period.

Title: Long-Term Ecological Research

• Mark D Schulze
  Role: Principal Investigator
  H.J. Andrews Experimental Forest; PO Box 300, Blue River, OR, 97413
  Phone: 541-822-6336
  Email: mark.schulze@oregonstate.edu
• Jay M. Sexton
  Role: Other Researcher
  Corvallis, OR, 97331-5752, USA
  Phone: (541) 737-8430
  Email: hexagon@exchangenet.net
• Sarah Ward
  Role: Other Researcher
  Email: sarahward0925@gmail.com, Sward7@uoregon.edu
• Mark D Schulze
  Role: Creator
  H.J. Andrews Experimental Forest; PO Box 300, Blue River, OR, 97413
  Phone: 541-822-6336
  Email: mark.schulze@oregonstate.edu

• Information Manager
  Andrews Forest LTER Program, US Forest Service Pacific Northwest Research Station, 3200 SW Jefferson Way, Corvallis, OR, 97331
  Email: hjaweb@lists.oregonstate.edu
  URL: http://andrewsforest.oregonstate.edu/

• Andrews Forest LTER Site
  Role: Publisher
  Forest Ecosystems and Society Department in Forestry, Oregon State University, 201K Richardson Hall, Corvallis, OR, 97331-5752
  Phone: (541) 737-8480
  Email: lterweb@lists.oregonstate.edu
  URL: http://andrewsforest.oregonstate.edu/

The vegetation phenology study is part of a larger effort to understand the influence of climate variability and change on trophic interactions in mountainous terrain. Phenology Core Sites were selected to capture the variation in elevation and topography across Lookout Creek watershed. Priority was given to sites with long-term air and soil temperature records (Reference stands) and previous phenology observations (Reference stands and stream gauging stations). Sixteen sites were established. At each site five individuals of from each 18 common species (if occurring within the site) from tree, shrub and herb layers were mapped and marked for observation. Weekly observations are conducted each year beginning in March or April depending on winter conditions and snowpack and continuing through June or July. Plant vegetative and reproductive phenophases are scored using a numbered system adapted to each plant species. The vegetation phenology study is part of a larger effort to understand the influence of climate variability and change on trophic interactions in mountainous terrain. The initial objectives are to investigate patterns of microclimate variability across Lookout Watershed and plant response to spatial and temporal variability in snowpack dynamics and winter and spring air and soil temperatures. The plant phenology efforts from 2009-2014 were coordinated with insect phenology and bird phenology sampling to improve understanding of how species across trophic levels respond to environmental variability, the extent to which climate variability may contribute to trophic asynchrony, as well as the potential for mountain microclimate diversity to buffer the effects of climate change. Over time, the research program will contribute to our understanding of how climate variability and change is influencing the timing and duration of the active growing period. Field Methods - TV075

Purpose: The vegetation phenology study is part of a larger effort to understand the influence of climate variability and change on trophic interactions in mountainous terrain. The initial objectives are to investigate patterns of microclimate variability across Lookout Watershed and plant response to spatial and temporal variability in snowpack dynamics and winter and spring air and soil temperatures. The plant phenology efforts from 2009-2014 were coordinated with insect phenology and bird phenology sampling to improve understanding of how species across trophic levels respond to environmental variability, the extent to which climate variability may contribute to trophic asynchrony, as well as the potential for mountain microclimate diversity to buffer the effects of climate change. Over time, the research program will contribute to our understanding of how climate variability and change is influencing the timing and duration of the active growing period.

Method Steps

Sampling

No software entries listed in this EML file.

• LTER controlled vocabulary: communities (theme), populations (theme), climate change (theme), phenology (theme), forest ecology (theme), plant ecology (theme), microclimate (theme), air temperature (theme), biodiversity (theme)
• Andrews Experimental Forest site thesaurus: environmental gradients (theme)
• LTER core research areas: populations (theme)

• All Organisms: All Organisms
• Highest common category (ca. kingdom): Plantae
• Division or Phylum: Coniferophyta
• Class: Pinopsida
• Order: Pinales
• Family: Pinaceae
• Genus: Pseudotsuga
• Species: Pseudotsuga menziesii
• Genus: Abies
• Species: Abies procera
• Species: Abies amabilis
• Genus: Tsuga
• Species: Tsuga heterophylla
• Division or Phylum: Magnoliophyta
• Class: Magnoliopsida
• Subclass: Magnoliidae
• Order: Ranunculales
• Family: Ranunculaceae
• Genus: Coptis
• Species: Coptis laciniata
• Subclass: Rosidae
• Order: Rosales
• Family: Rosaceae
• Genus: Rubus
• Species: Rubus ursinus
• Order: Sapindales
• Family: Aceraceae
• Genus: Acer
• Species: Acer macrophyllum
• Species: Acer circinatum
• Order: Cornales
• Family: Cornaceae
• Genus: Cornus
• Species: Cornus nuttallii
• Species: Cornus canadensis
• Subclass: Dilleniidae
• Order: Violales
• Family: Violaceae
• Genus: Viola
• Species: Viola sempervirens
• Order: Ericales
• Family: Pyrolaceae
• Genus: Chimaphila
• Species: Chimaphila umbellata
• Family: Ericaceae
• Genus: Vaccinium
• Species: Vaccinium membranaceum
• Species: Vaccinium parvifolium
• Genus: Rhododendron
• Species: Rhododendron macrophyllum
• Class: Liliopsida
• Subclass: Liliidae
• Order: Liliales
• Family: Liliaceae
• Genus: Trillium
• Species: Trillium ovatum
• Subclass: Asteridae
• Order: Dipsacales
• Family: Caprifoliaceae
• Genus: Linnaea
• Species: Linnaea borealis
• Order: Scrophulariales
• Family: Scrophulariaceae
• Genus: Synthyris
• Species: Synthyris reniformis

No related dataset codes found in the EML text fields.

• Ward, Sarah E. 2018. Microclimate and Phenology at the H.J. Andrews Experimental Forest. Eugene: University of Oregon. 73 p. M.S. thesis.
• Ward, Sarah E.; Schulze, Mark; Roy, Bitty. 2018. A long-term perspective on microclimate and spring plant phenology in the Western Cascades. Ecosphere. 9(10): e02451. doi: 10.1002/ecs2.2451
• Taylor, Shawn D.; Meiners, Joan M.; Riemer, Kristina; Orr, Michael C.; White, Ethan P. 2019. Comparison of large-scale citizen science data and long-term study data for phenology modeling. Ecology. 100(2): ecy.2568. doi: 10.1002/ecy.2568

No related files listed in this EML file.

Data Use Agreement:

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. This Data Set is released under the Creative Commons license CC BY "Attribution" (see: https://creativecommons.org/licenses/by/4.0/). Creative Commons license CC BY - Attribution is a license that allows others to distribute, remix, tweak, and build upon your work (even commercially), as long as you are credited for the original creation. This license accommodates maximum dissemination and use of licensed materials.

It is considered professional conduct and an ethical obligation to acknowledge the work of other scientists. The Data User is asked to provide attribution of the original work if this data package is shared in whole or by individual parts or used in the derivation of other products. A recommended citation is provided for each Data Set in the Andrews LTER data catalog (see: http://andlter.forestry.oregonstate.edu/data/catalog/datacatalog.aspx). A generic citation is also provided for this Data Set on the website https://portal.edirepository.org in the summary metadata page. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed and all data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.

General acknowledgement: Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.

License: Creative Commons Attribution 4.0 International Public License

Identifier: CC-BY-4.0

URL: https://creativecommons.org/licenses/by/4.0/

Maintenance update frequency: annually

Description

• An update history is logged and maintained with each new version of every dataset.

Change History

• Version1 (2010-02-17)
  Original Creation of metadata into SQL
• Version2 (2017-06-27)
  TV075 - all 4 entities are placed online for the first time. Data includes collections from 2009 to 2015.
• Version4 (2020-02-19)
  Updated entity with data from 2016-2019.
• Version5 (2023-03-20)
  Updated entities 1 and 4 with data from 2020-2022.
• Version6 (2023-03-24)
  Forgot to update the entity and database dates. The data has not changed.