World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
71
Citations
19959
World Ranking
1299
National Ranking
26

Overview

Nils Ryman is affiliated with Stockholm University in Sweden and conducts research primarily in the fields of Biochemistry, Genetics and Molecular Biology, as well as Environmental Science. Their work spans various subfields including Genetics, Nature and Landscape Conservation, Ecology, Molecular Biology, and Plant Science.

Their research focuses on several main topics:

  • Genetic diversity and population structure
  • Genetic and phenotypic traits in livestock
  • Fish Ecology and Management Studies
  • Evolution and Genetic Dynamics
  • Genetic Mapping and Diversity in Plants and Animals
  • Environmental DNA in Biodiversity Studies
  • Wildlife Ecology and Conservation

Ryman has published frequently in several scientific journals, contributing notably to:

  • Conservation Genetics
  • Molecular Ecology
  • Science
  • Evolutionary Applications
  • BMC Genomics

Some of their recent papers include:

  • Post-2020 goals overlook genetic diversity, 2020, Science
  • Authors' Reply to Letter to the Editor: Continued improvement to genetic diversity indicator for CBD, 2021, Conservation Genetics
  • Monitoring genetic diversity with new indicators applied to an alpine freshwater top predator, 2022, Molecular Ecology
  • Moose genomes reveal past glacial demography and the origin of modern lineages, 2020, BMC Genomics
  • What does effective population size tell us about loss of allelic variation?, 2024, Evolutionary Applications

The scientist frequently collaborates with other researchers including Linda Laikre, Fred W. Allendorf, Sara Kurland, Ola Hössjer, and Philip W. Hedrick, among others.

Best Publications

  • Genetic Effects of Cultured Fish on Natural Fish Populations

    Kjetil Hindar;Nils Ryman;Fred Utter

  • Genetic effects of harvest on wild animal populations

    Fred W. Allendorf;Fred W. Allendorf;Fred W. Allendorf;Phillip R. England;Gordon Luikart;Peter A. Ritchie

  • Effects of Supportive Breeding on the Genetically Effective Population Size

    Nils Ryman;Linda Laikre

  • Estimation of census and effective population sizes: the increasing usefulness of DNA-based approaches

    Gordon Luikart;Nils Ryman;David A. Tallmon;Michael K. Schwartz

  • POWSIM: a computer program for assessing statistical power when testing for genetic differentiation

    Nils Ryman;Stefan Palm

  • Compromising genetic diversity in the wild: unmonitored large-scale release of plants and animals

    Linda Laikre;Michael K. Schwartz;Robin S. Waples;Nils Ryman

  • Isozyme loci in brown trout (Salmo trutta L.): detection and interpretation from population data

    Fred W. Allendorf;N. Mitchell;N. Ryman;G. Stahl

  • Population Genetics and Fishery Management

    Nils Ryman;Fred Utter

  • GENETIC STRUCTURE OF NORWAY SPRUCE (PICEA ABIES): CONCORDANCE OF MORPHOLOGICAL AND ALLOZYMIC VARIATION.

    Ulf Lagercrantz;Nils Ryman

  • Protection of intraspecific biodiversity of exploited fishes

    Nils Ryman;Fred Utter;Linda Laikre

  • Power for detecting genetic divergence: differences between statistical methods and marker loci.

    Nils Ryman;Stefan Palm;Carl André;Gary R. Carvalho

  • Temporal allele frequency change and estimation of effective size in populations with overlapping generations.

    Per Erik Jorde;Nils Ryman

  • Unbiased estimator for genetic drift and effective population size.

    Per Erik Jorde;Nils Ryman

  • Population-scale sequencing reveals genetic differentiation due to local adaptation in Atlantic herring

    Sangeet Lamichhaney;Alvaro Martinez Barrio;Nima Rafati;Görel Sundström

  • Biocomplexity in a highly migratory pelagic marine fish, Atlantic herring

    D.E. Ruzzante;S. Mariani;Dorte Bekkevold;C. André

  • Neglect of genetic diversity in implementation of the convention on biological diversity.

    Linda Laikre;Fred W. Allendorf;Laurel C. Aroner;C. Scott Baker

  • Patterns of distribution of biochemical genetic variation in salmonids: differences between species.

    Nils Ryman

  • Genetic Variation in Atlantic Cod (Gadus morhua) Throughout Its Range

    Jarle Mork;Nils Ryman;Gunnar Ståhl;Fred Utter

  • Genetic relationships among landlocked, resident, and anadromous Brown Trout, Salmo trutta L.

    K Hindar;B Jonsson;N Ryman;G Ståhl

  • Genetic changes in hatchery stocks of brown trout (Salmo trutta).

    Nils Ryman;Gunnar Ståhl

  • Population Genetics and Fishery Management.

    A. Jamieson;N. Ryman;F. Utter

  • Compromising genetic diversity in thewild: unmonitored large-scale releaseof plants and animals

    Linda Laikre;Michael K. Schwartz;Robin Waples;Nils Ryman

Frequent Co-Authors

Per Erik Jorde
Per Erik Jorde University of Oslo
Fred W. Allendorf
Fred W. Allendorf University of Montana
Leif Andersson
Leif Andersson Texas A&M University
Carl André
Carl André University of Gothenburg
Gary R. Carvalho
Gary R. Carvalho Bangor University
Ranajit Chakraborty
Ranajit Chakraborty University of North Texas Health Science Center
Daniel E. Ruzzante
Daniel E. Ruzzante Dalhousie University
Stefano Mariani
Stefano Mariani Liverpool John Moores University
Kjetil Hindar
Kjetil Hindar Norwegian Institute for Nature Research
Michael K. Schwartz
Michael K. Schwartz US Forest Service

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

For students interested in expanding their expertise beyond Ecology and Evolution, healthcare offers a variety of compelling opportunities. One path to consider is nursing, where online education has created flexible options to advance your career. Prospective nurse practitioners often ask, how long does it take to be a nurse practitioner? Online programs can significantly shorten traditional timelines, making advanced practice nursing more accessible.

Those currently working as registered nurses (RNs) might consider enrolling in the rn to bsn online pathway—a streamlined online degree that can often be completed in less than a year. RNs interested in taking on advanced roles may pursue rn to np programs online, which are bridge programs guiding nurses from an Associate Degree in Nursing (ADN) to a Master of Science in Nursing (MSN).

For non-nurses drawn to healthcare careers, there are also online msn programs for non nurses that provide a fast track into advanced nursing practice. With increasingly flexible online options, career changes and advanced specialization are more attainable than ever.

Best Scientists Citing Nils Ryman

Trending Scientists