World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
27
Citations
2752
World Ranking
2800
National Ranking
791

Research.com Recognitions

  • 1988 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Genus
  • Zoology

The scientist’s investigation covers issues in Zoology, Ecology, Spermophilus, Sympatric speciation and Reproduction. His studies deal with areas such as Ground squirrel, Xerinae, Clade, Molecular clock and Molecular phylogenetics as well as Zoology. His Ecology research is multidisciplinary, incorporating elements of China and Reproductive success.

His biological study spans a wide range of topics, including Taxon, Paraphyly and Sympatry. His Sympatric speciation research is multidisciplinary, relying on both Range, Niche, Competitive exclusion principle, Competitive exclusion and Habitat. His research integrates issues of Hibernaculum, Hibernation and Weaning in his study of Reproduction.

His most cited work include:

  • A Guide to the Mammals of China (331 citations)
  • Mammals of the Soviet Union (216 citations)
  • Nuclear DNA phylogeny of the squirrels (Mammalia: Rodentia) and the evolution of arboreality from c-myc and RAG1 (164 citations)

What are the main themes of his work throughout his whole career to date?

Robert S. Hoffmann mainly focuses on Zoology, Ecology, Spermophilus, Ground squirrel and Archaeology. Robert S. Hoffmann frequently studies issues relating to Taxon and Zoology. His Taxon research is multidisciplinary, incorporating perspectives in Species level and Sympatry.

His work on Grouse, Insectivora, Reproduction and Geographic distribution as part of general Ecology research is often related to Distribution, thus linking different fields of science. His Spermophilus study often links to related topics such as Sympatric speciation. His work on African ground squirrel is typically connected to Spermophilus brunneus as part of general Ground squirrel study, connecting several disciplines of science.

He most often published in these fields:

  • Zoology (75.65%)
  • Ecology (35.65%)
  • Spermophilus (12.17%)

What were the highlights of his more recent work (between 1999-2018)?

  • Zoology (75.65%)
  • China (3.48%)
  • Ecology (35.65%)

In recent papers he was focusing on the following fields of study:

His main research concerns Zoology, China, Ecology, Index and Fishery. His research in the fields of Crocidura overlaps with other disciplines such as Dorsum. The China study combines topics in areas such as Russula and White.

His study in Ecology is interdisciplinary in nature, drawing from both Sorex tenellus and Species complex. His Fishery study combines topics in areas such as Forestry and Free ranging. His Paraphyly study combines topics from a wide range of disciplines, such as Otospermophilus, Xerinae, Ground squirrel, Spermophilus and Molecular clock.

Between 1999 and 2018, his most popular works were:

  • A Guide to the Mammals of China (331 citations)
  • Nuclear DNA phylogeny of the squirrels (Mammalia: Rodentia) and the evolution of arboreality from c-myc and RAG1 (164 citations)
  • Phylogeny and Evolutionary History of the Ground Squirrels (Rodentia: Marmotinae) (117 citations)

Best Publications

  • Nuclear DNA phylogeny of the squirrels (Mammalia: Rodentia) and the evolution of arboreality from c-myc and RAG1

    Scott J Steppan;Brian L Storz;Robert S Hoffmann

  • Phylogeny and Evolutionary History of the Ground Squirrels (Rodentia: Marmotinae)

    Richard G. Harrison;Steven M. Bogdanowicz;Robert S. Hoffmann;Eric Yensen

  • Molecular phylogeny of the marmots (Rodentia: Sciuridae): tests of evolutionary and biogeographic hypotheses.

    Scott J. Steppan;Mikhail R. Akhverdyan;Mikhail R. Akhverdyan;Elena A. Lyapunova;Darrilyn G. Fraser

  • Socioecology of Marmots: Female Reproductive Strategies

    Douglas C. Andersen;Kenneth B. Armitage;Robert S. Hoffmann

  • Habitat Overlap and Competitive Exclusion in Voles (Microtus)

    James R. Koplin;Robert S. Hoffmann

  • G-band patterns as chromosomal markers, and the interpretation of chromosomal evolution in wild sheep (Ovis).

    C F Nadler;C F Nadler;R S Hoffmann;R S Hoffmann;A Woolf;A Woolf

  • Pattern Analysis of Acoustical Behavior in Four Species of Ground Squirrels

    J. W. Koeppl;J. W. Koeppl;R. S. Hoffmann;R. S. Hoffmann;C. F. Nadler;C. F. Nadler

  • System Atics of the Holarctic Chipmunks (Tamias)

    Howard Levenson;Robert S. Hoffmann;Charles F. Nadler;Ljerka Deutsch

  • Pseudois nayaur and Pseudois schaeferi

    Xiaoming Wang;Robert S. Hoffmann

  • Morphological evolution in marmots (Rodentia, Sciuridae): size and shape of the dorsal and lateral surfaces of the cranium

    A. Cardini;Robert S. Hoffmann;Richard W. Thorington

  • G-band patterns, chromosomal homologies, and evolutionary relationships among wild sheep, goats, and aoudads (Mammalia, Artiodactyla).

    C. F. Nadler;C. F. Nadler;R. S. Hoffmann;R. S. Hoffmann;A. Woolf;A. Woolf

  • Chromosomes and systematics of some North American species of the genus Marmota (Rodentia: Sciuridae).

    R. S. Hoffmann;R. S. Hoffmann;C. F. Nadler;C. F. Nadler

  • Black brant, sea goose of the Pacific coast

    Robert S. Hoffmann;Arthur S. Einarsen

  • A REVISION OF THE WHITE-TOOTHED SHREWS (CROCIDURA) OF SOUTHERN CHINA

    Xue-long Jiang;Robert S. Hoffmann

  • A Three-Dimensional Home Range Model

    J. W. Koeppl;N.A. Slade;K. S. Harris;R. S. Hoffmann

  • Patterns of evolution and migration in the arctic ground squirrel, Spermophilus parryii (Richardson)

    Charles F. Nadler;Robert S. Hoffmann

  • Evolution in ground squirrels--I. Transferrins in holarctic populations of Spermophilus.

    Charles F Nadler;R.I Sukernik;Robert S Hoffmann;N.N Vorontsov

  • Chromosomes and Serum Proteins of Prairie Dogs and a Model of Cynomys Evolution

    Charles F. Nadler;Charles F. Nadler;Robert S. Hoffmann;Robert S. Hoffmann;John J. Pizzimentt;John J. Pizzimentt

  • Chromosomal Evolution in Chipmunks, with Special Emphasis on A and B Karyotypes of the Subgenus Neotamias

    Charles F. Nadler;Robert S. Hoffmann;James H. Honacki;Deborah Pozin

  • A Review of the Taxonomy of the Sorex Vagrans Species Complex From Western North America

    D Hennings;R S Hoffmann

  • Chromosomal Divergence During Evolution of Ground Squirrel Populations (Rodentia: Spermophilus)

    Charles F. Nadler;Robert S. Hoffmann;Kenneth R. Greer

  • Chromosomes of the siberian snow sheep, Ovis nivicola, and implications concerning the origin of amphiberingian wild sheep (subgenus Pachyceros)

    K.V. Korobitsyna;C.F. Nadler;N.N. Vorontsov;R.S. Hoffmann;R.S. Hoffmann

  • Cytogenetic Differentiation, Geographie Distribution, and Domestication in Palearctic Sheep (Ovis)

    Charles F Nadler;Robert S Hoffmann;K Korobitsina;N N Vorontsov

  • A REVISION OF THE WHITE-TOOTHED SHREWS (CROCIDURA) OF

    Xue-Long Jiang;Robert S. Hoffmann

Frequent Co-Authors

Charles F. Nadler
Charles F. Nadler Northwestern University
Andrew T. Smith
Andrew T. Smith Arizona State University
Norman A. Slade
Norman A. Slade University of Kansas
Lawrence R. Heaney
Lawrence R. Heaney Field Museum of Natural History
Michael J. Braun
Michael J. Braun University of Maryland, College Park
Kenneth B. Armitage
Kenneth B. Armitage University of Kansas
Richard W. Thorington
Richard W. Thorington National Museum of Natural History
Paul O'Higgins
Paul O'Higgins Hull York Medical School
Paul W. Sherman
Paul W. Sherman Cornell University

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