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Grants
  • Funding agency logo
    Cycles of Renewal: Bringing Good Fire Back to the Chumash Homelands

    Co-Investigator (COI)

    2022

    $272.9K
    Active
  • Funding agency logo
    Enhancing U.S. Biosecurity with Improved Pest Forecasts and Public Engagement

    Principal Investigator (PI)

    2022

    $248.6K
    Active
  • Funding agency logo
    Seasonal Shifts on National Forest Lands

    Principal Investigator (PI)

    2022

    $99.1K
    Active
  • Funding agency logo
    NEON - USA-NPN Data Integration

    Principal Investigator (PI)

    2022

    $60.7K
    Active
  • Funding agency logo
    Delivering Real-time and Short-term Forecasts of Invasive Grass Phenology

    Principal Investigator (PI)

    2022

    $25.0K
    Active
  • Funding agency logo
    Monarchs in Arizona Community Science Project

    Principal Investigator (PI)

    2022

    $19.5K
    Active
  • Funding agency logo
    Sustaining the USA National Phenology Network

    Principal Investigator (PI)

    2021

    $510.2K
    Active
  • Funding agency logo
    Collaborative Research: MRA: Quantifying Phenological Coherence and Seasonal Predictability Across Neon and USA-NPN Monitoring Sites

    Principal Investigator (PI)

    2021

    $158.8K
    Active
  • Funding agency logo
    Dimensions of Biodiversity

    Principal Investigator (PI)

    2021

    $29.5K
    Active
  • Funding agency logo
    Developing and Delivering Short-term Forecasts of Winter Wheat Phenology

    Principal Investigator (PI)

    2020

    $29.2K
News
  • Women in climate change: Theresa Crimmins

    2022

  • National Phenology Network Hits 10M Records

    2017

  • Summer Blooms Wait on the Rain

    2011

  • A Back-to-Basics Approach to Ecology

    2009

  • Plants Take a Hike as Temperatures Rise

    2009

  • UA Hosts Conference on Timing of Biological Events

    2009

Publications (121)
Recent
  • Correction to: Updates to standardized plant and animal observation protocols of the USA National Phenology Network

    2023

  • Updates to standardized plant and animal observation protocols of the USA National Phenology Network

    2023

  • How consistently do species leaf-out or flower in the same order? Understanding the factors that shape this characteristic of plant communities

    2023

  • Random Forest Classification of Multitemporal Landsat 8 Spectral Data and Phenology Metrics for Land Cover Mapping in the Sonoran and Mojave Deserts

    2023

  • Observations from the USA National Phenology Network can be leveraged to model airborne pollen

    2023

  • Two centuries of phenological change: An analysis of newly uncovered citizen science network data across New York State.

    2022

  • Biogeosciences Perspectives on Integrated, Coordinated, Open, Networked (ICON) Science

    2022

  • An optimal method for validating satellite-derived land surface phenology using in-situ observations from national phenology networks

    2022

  • Do Carefully Timed Email Messages Increase Accuracy and Precision in Citizen Scientists’ Reports of Events?

    2022

  • Growing uncertainty in projected spring onset variability in the Northern Hemisphere

    2022

  • Science and Management Advancements Made Possible by the USA National Phenology Network's Nature's Notebook Platform

    2022

  • Science and management advancements made possible by the USA National Phenology Network’s Nature’s Notebook platform

    2022

  • Citizen science across two centuries reveals phenological change among plant species and functional groups in the Northeastern <scp>US</scp>

    2022

  • Do carefully-timed email messages increase accuracy and precision in citizen scientists’ reports of events?

    2022

  • Large-scale citizen science programs can support ecological and climate change assessments

    2022

  • The USA National Phenology Network: Big idea, productivity and potential – and now, at big risk.

    2021

  • USA National Phenology Network 2020 Annual Report

    2021

  • Can forecasts of the start of the spring season improve allergy and asthma symptom management?

    2021

  • COVID-19 impacts on participation in large scale community science projects in the United States.

    2021

  • Global COVID-19 lockdown highlights humans as both threats and custodians of the environment.

    2021

  • The Pheno-Synthesis Software Suite for integration and analysis of multi-scale, multi-platform phenological data.

    2021

  • Science and management advancements made possible by the USA National Phenology Network’s Nature’s Notebook program

    2021

  • The USA National Phenology Network: Big Idea, Productivity, and Potential—and Now, at Big Risk

    2021

  • The USA National Phenology Network’s Buffelgrass Green-up Forecast map products.

    2021

  • Reading the leaves to track environmental hazards and health

    2021

  • Do carefully-timed email messages result in more precise reports of seasonal events?

    2020

  • Ecological Forecasting: 21st century science for 21st century management.

    2020

  • Nature shows us missed anniversaries aren’t the end of the world

    2020

  • Spring 2020 started with a bang; how did it wind up?

    2020

  • Reconnect with seasonal cycles to ease climate change anxiety

    2020

  • Knowledge co-production for climate ecologists: testing a framework to guide new co-producers

    2020

  • Short-term Forecasts of Pest Insect Activity Inform Management Activities

    2020

  • Dear white people: Don’t withdraw from tough conversations on race.

    2020

  • Tracking seasonal changes to support science, natural resource management, and society

    2020

  • Eyes in the sky improve pollen tracking

    2020

  • Tracking phenology – the timing of seasonal events – cultivates a sense of belonging.

    2020

  • You can take the person out of the natural area…

    2020

  • Nature’s Notebook—A tool for recording the timing of seasonal activity of plants and animals.

    2020

  • An evaluation of how Spring index models predict observed phenological activity

    2020

  • Spring is arriving earlier across the U.S., and that’s not always good news

    2020

  • Seasonality of biological and physical systems as indicators of climate variation and change

    2020

  • Venturing into my yard is now as necessary as eating and breathing

    2020

  • Dark days are leading to something greener

    2020

  • What do allergies, blueberries and the Masters Tournament have in common? Early spring

    2020

  • How well do the spring indices predict phenological activity across plant species?

    2020

  • Short-Term Forecasts of Insect Phenology Inform Pest Management

    2020

  • Citizen science programs offer great options for families affected by recent school closures

    2020

  • Time to branch out? Application of hierarchical survival models in plant phenology

    2019

  • USA National Phenology Network 2018 Annual Report

    2019

  • Time to branch out? Application of survival models in plant phenology

    2019

  • Does an early spring indicate an early summer? Relationships between intraseasonal growing degree day threshold

    2019

  • Does an Early Spring Indicate an Early Summer? Relationships Between Intraseasonal Growing Degree Day Thresholds

    2019

  • Real tree or fake? Reducing your holiday carbon footprint

    2019

  • The USA National Phenology Network Expands Daily Pest Forecasts to Twelve Insect Pests.

    2019

  • Hanging out with plants can do us all a world of good

    2019

  • The first 10 years of the USA National Phenology Network: accomplishments and lessons learned.

    2019

  • Creating the Urban Farmer's Almanac with Citizen Science Data

    2019

  • Growing degree day (GDD) maps pinpoint management windows for tree pests

    2018

  • The USA National Phenology Network’s growing degree day maps and online visualization tool support management decisions.

    2018

  • USA-NPN Daily Pest Forecasts Guide Timing of Pest Control Activities

    2018

  • Synchronous species responses reveal phenological guilds – Implications for management.

    2018

  • Successes and challenges on a spectrum of stakeholder engagement.

    2018

  • Development and release of phenological data products--A case study in compliance with federal open data policy

    2018

  • Differential changes in the onset of spring across US National Wildlife Refuges and North American migratory bird flyways

    2018

  • USA-NPN Daily Pest Forecasts Guide Timing of Treatment for Insect Pests.

    2018

  • USA National Phenology Network Observational Data Documentation

    2018

  • USA National Phenology Network Gridded Products Documentation

    2017

  • Plant Phenology Site Phenometrics + Accumulated Growing Degree Day Calculations for the continental United States (2009-2016)

    2017

  • USA National Phenology Network’s volunteer-contributed observations yield predictive models of phenological transitions

    2017

  • Community for Data Integration 2016 annual report

    2017

  • Citizen science and conservation: Recommendations for a rapidly moving field

    2016

  • USA National Phenology Network Phenology Model Workshop Report.

    2016

  • USA National Phenology Network 2015 Annual Report

    2016

  • Review Implementation Plan

    2016

  • Evaluating changes in plant species’ phenology using accumulated temperature models

    2015

  • Complex and divergent changes in richness and composition of subtropical plant communities driven by warming temperatures

    2015

  • Turnover and reliability of flower communities in extreme environments: Insights from long-term phenology data sets

    2015

  • Evaluating phenological response to accumulated temperature

    2015

  • Assessing accuracy in citizen science-based plant phenology monitoring.

    2014

  • Within-season flowering interruptions are common in the water-limited Sky Islands

    2014

  • Timing is Everything: Phenology as a Tool for City Foresters.

    2014

  • Standardized phenology monitoring methods to track plant and animal activity for science and resource management applications.

    2014

  • Targeted campaign increases activity among participants in Nature's Notebook, a citizen science project.

    2014

  • USA National Phenology Network 2013 Annual Report

    2014

  • Scientists love lilacs almost as much as you do.

    2014

  • Turnover and reliability of flower communities across two deserts and two mountains: A pollinator&#8217;s perspective.

    2013

  • Nature's Notebook: 2012 State of the Data.

    2013

  • Nature’s Notebook and Extension: Engaging citizen-scientists and 4-H youth to observe a changing environment.

    2013

  • Phylogenetic conservatism in plant phenology

    2013

  • Organizing phenological data resources to inform natural resource conservation.

    2013

  • Spring and summer patterns in flowering onset, duration, and constancy across a water-limited gradient.

    2013

  • Within-season flowering interruptions are common in the water-limited Sky Islands.

    2013

  • Forecasting phenology: from species variability to community patterns

    2012

  • Phenological tracking enables positive species responses to climate change

    2012

  • Temporal patterns in species flowering in Sky Islands of the Sonoran Desert ecoregion.

    2012

  • Warming experiments underpredict plant phenological responses to climate change.

    2012

  • Appreciating and archiving present-day naturalists contributions to science

    2012

  • Phenological variation across scales

    2012

  • Appreciating and Archiving Present-Day Naturalists' Contributions to Science

    2012

  • Nature's Notebook: A Tool for Education and Research

    2011

  • Use of MODIS satellite images and an atmospheric dust transport model to evaluate juniperus spp. Pollen phenology and dispersal

    2011

  • Onset of summer flowering in a ‘Sky Island’ is driven by monsoon moisture

    2011

  • Onset of spring in a semi-arid environment

    2010

  • Online Learning Modules for an Extension Program: Useful and Utilized?

    2010

  • Sensitivity of Spring Phenology to Warming Across Temporal and Spatial Climate Gradients in Two Independent Databases

    2010

  • A new approach to generating research-quality data through citizen science: The USA National Phenology Monitoring System

    2009

  • Complex responses to climate drivers in onset of spring flowering across a semi-arid elevation gradient

    2009

  • Flowering range changes across an elevation gradient in response to warming summer temperatures

    2008

  • Warming experiments underpredict plant phenological responses to climate change

    2008

  • The critical role that citizen scientists can play in identifying adaptation strategies to climate change

    2008

  • Monitoring Plant Phenology Using Digital Repeat Photography

    2008

  • Vegetation and seedbank response to Eragrostis lehmanniana removal in semi-desert communities

    2008

  • Assessing exotic plant distribution, abundance, and impact at Montezuma Castle and Tuzigoot National Monuments in Arizona

    2008

  • Relationships between alpha diversity of plant species in bloom and climatic variables across an elevation gradient

    2007

  • Effects of removing Cynodon dactylon from a recently abandoned agricultural field

    2007

  • Spread and current potential distribution of an alien grass, Eragrostis lehmanniana Nees, in the southwestern USA: comparing historical data and ecological niche models

    2006

  • Can the invaded range of a species be predicted sufficiently using only native-range data?

    2006

  • AHP as a means for improving public participation: a pre–post experiment with university students

    2005

  • Reserve site selection at a non-profit educational nature center

    2003

  • Economic analyses in watershed management planning: Methods, applications and education

    2002

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