World's Best Scientists 2026 revealed!
D. Ryan Norris

D. Ryan Norris

D-Index & Metrics

Ecology and Evolution

D-Index
60
Citations
13413
World Ranking
2298
National Ranking
155

Overview

D. Ryan Norris is affiliated with the University of Guelph in Canada. Their research focuses primarily on environmental science and agricultural and biological sciences, with significant specialization in ecology and related subfields. The scientist's work spans ecological modeling, genetics, nature and landscape conservation, and the broader field of ecology, evolution, behavior, and systematics.

The main research topics covered by Norris include avian ecology and behavior, wildlife ecology and conservation, species distribution and climate change, animal behavior and reproduction, plant and animal studies, ecology and vegetation dynamics studies, as well as animal vocal communication and behavior.

Several frequently published venues characterize the scientist's publication record. These include:

  • Animal Behaviour
  • Canadian Journal of Zoology
  • The Auk
  • Zenodo (CERN European Organization for Nuclear Research)
  • Ecosphere

Norris has contributed to research articles examining migration patterns, ecological processes, and species survival. Notable recent papers are as follows:

  • "Rapid recovery by fat- and muscle-depleted Blackpoll Warblers following trans-oceanic migration is driven by time-minimization" (2021, The Auk)
  • "Continuous-surface geographic assignment of migratory animals using strontium isotopes: A case study with monarch butterflies" (2021, Methods in Ecology and Evolution)
  • "Integrating data types to estimate spatial patterns of avian migration across the Western Hemisphere" (2022, Ecological Applications)
  • "Climate-driven carry-over effects negatively influence population growth rate in a food-caching boreal passerine" (2020, Global Change Biology)
  • "Estimating arthropod survival probability from field counts: a case study with monarch butterflies" (2020, Ecosphere)

The scientist has collaborated frequently with several coauthors, including:

  • Amy E. M. Newman
  • Daniel J. Mennill
  • Stéphanie M. Doucet
  • Sarah L. Dobney
  • Dan Strickland

Best Publications

  • Carry‐over effects as drivers of fitness differences in animals

    Xavier A. Harrison;Jonathan D. Blount;Richard Inger;D. Ryan Norris

  • Tropical winter habitat limits reproductive success on the temperate breeding grounds in a migratory bird.

    D. Ryan Norris;Peter P. Marra;T. Kurt Kyser;Thomas W. Sherry

  • Biological carryover effects: linking common concepts and mechanisms in ecology and evolution

    Constance M. O'Connor;D. Ryan Norris;Glenn T. Crossin;Steven J. Cooke

  • Optimal conservation of migratory species

    Tara G. Martin;Iadine Chadès;Peter Arcese;Peter P. Marra

  • The motus wildlife tracking system: A collaborative research network to enhance the understanding of wildlife movement

    Philip D. Taylor;Tara L. Crewe;Stuart A. Mackenzie;Denis Lepage

  • Carry-over effects and habitat quality in migratory populations

    D. Ryan Norris

  • SEASONAL INTERACTIONS, HABITAT QUALITY, AND POPULATION DYNAMICS IN MIGRATORY BIRDS

    D. Ryan Norris;Peter P. Marra

  • Unravelling the annual cycle in a migratory animal: breeding‐season habitat loss drives population declines of monarch butterflies

    D. T. Tyler Flockhart;Jean-Baptiste Pichancourt;D. Ryan Norris;Tara G. Martin

  • Cross-hemisphere migration of a 25 g songbird

    Franz Bairlein;D. Ryan Norris;Rolf Nagel;Marc Bulte

  • Amazonian rainforest tree mortality driven by climate and functional traits

    Izabela Aleixo;Izabela Aleixo;Darren Norris;Darren Norris;Lia Hemerik;Antenor Barbosa

  • Carry‐over effects in a Pacific seabird: stable isotope evidence that pre‐breeding diet quality influences reproductive success

    Marjorie C. Sorensen;J. Mark Hipfner;T. Kurt Kyser;D. Ryan Norris

  • Predicting the consequences of carry-over effects for migratory populations

    D. Ryan Norris;Caz M Taylor

  • Tracking multi-generational colonization of the breeding grounds by monarch butterflies in eastern North America

    D. T. Tyler Flockhart;Leonard I. Wassenaar;Tara G. Martin;Keith A. Hobson

  • Transoceanic migration by a 12 g songbird.

    William V. DeLuca;Bradley K. Woodworth;Christopher C. Rimmer;Peter P. Marra

  • Population dynamics in migratory networks

    Caz M. Taylor;D. Ryan Norris

  • Storms drive altitudinal migration in a tropical bird

    W. Alice Boyle;W. Alice Boyle;D. Ryan Norris;Christopher G. Guglielmo

  • Extraterritorial Movements of a Forest Songbird in a Fragmented Landscape

    D. Ryan Norris;Bridget J. M. Stutchbury

  • Reproductive Effort, Molting Latitude, and Feather Color in a Migratory Songbird

    D. Ryan Norris;D. Ryan Norris;Peter P. Marra;Robert Montgomerie;T. Kurt Kyser

  • Habitat patch size modulates terrestrial mammal activity patterns in Amazonian forest fragments

    Darren Norris;Fernanda Michalski;Carlos A. Peres

  • Animal Migration: A Context for Using New Techniques and Approaches

    Keith A. Hobson;D. Ryan Norris;Kevin J. Kardynal;Elizabeth Yohannes

  • Molting Latitude, and Feather Color in a Migratory Songbird

    D. Ryan Norris;Peter P. Marra;Robert Montgomerie;T. Kurt Kyser

Frequent Co-Authors

Peter P. Marra
Peter P. Marra Georgetown University
Philip D. Taylor
Philip D. Taylor Acadia University
Keith A. Hobson
Keith A. Hobson University of Western Ontario
Leonard I. Wassenaar
Leonard I. Wassenaar University of Ottawa
Christopher G. Guglielmo
Christopher G. Guglielmo University of Western Ontario
Laurene M. Ratcliffe
Laurene M. Ratcliffe Queen's University
Daniel J. Mennill
Daniel J. Mennill University of Windsor
Wayne E. Thogmartin
Wayne E. Thogmartin United States Geological Survey

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring a career in Ecology and Evolution opens up a variety of interdisciplinary opportunities. Many students interested in environmental and life sciences also consider related fields like library science, speech-language pathology, and nursing. Understanding the cost of mlis degree us is critical for those wanting to explore environmental information management, where library science skills are increasingly valued.

If you are seeking a clinical or communication-focused pathway, consider the options for asha approved online speech pathology programs. These accredited programs deliver the standards needed for certification, and you can also find specialized speech language pathology bridge programs online if your undergraduate major was not in communication sciences.

For those interested in healthcare careers that support environmental and community well-being, accelerated online options exist as well. If you don’t have a prior nursing background, explore the best online bsn programs for non nurses, which offer flexible routes into clinical care. Each of these pathways can complement your ecological and evolutionary studies, broadening your career prospects in science and beyond.

Best Scientists Citing D. Ryan Norris

Trending Scientists