Search filters

List of works by James Hanken

A NEW SNOUTED TREEFROG OF THE GENUS SCINAX (ANURA, HYLIDAE) FROM THE WHITE-SAND FORESTS OF CENTRAL AMAZONIA

scientific article published on 3 February 2022

A New Species of Big Black Bolitoglossa (Amphibia: Caudata) from Central Panamá

scientific article published in May 2005

A Seventh Species of Minute Salamander (Thorius: Plethodontidae) from the Sierra de Juárez, Oaxaca, México

scientific article published in 2001

A Solution to the Large Black Salamander Problem (Genus Bolitoglossa) in Costa Rica and Panamá

scientific article published in May 2005

A new nurse frog (Anura: Allobates) from Brazilian Amazonia with a remarkably fast multi-noted advertisement call

scientific article published on 04 November 2020

A new nurse frog of the s species complex (Anura: Aromobatidae) from the upper Madeira River, Brazilian Amazonia

scientific article published in 2022

A new species of Dendropsophus (Anura, Hylidae) from southwestern Amazonia with a green bilobate vocal sac

scientific article published on 18 June 2020

Adaptive radiation in miniature: the minute salamanders of the Mexican highlands (Amphibia: Plethodontidae:Thorius)

scientific article (publication date: 23 April 2013)

Amputation level-dependent patterning in urodele limb regeneration

scientific article published on 01 July 1990

An alternative evolutionary synthesis

scientific article published in 1999

Appendicular skeletal morphology in minute salamanders, genus Thorius (amphibia: Plethodontidae): Growth regulation, adult size determination, and natural variation

scientific article published on 01 October 1982

Biology of Tiny Animals: Systematics of the Minute Salamanders (Thorius: Plethodontidae) from Veracruz and Puebla, México, with Descriptions of Five New Species

scientific article (publication date: May 1998)

Biology of tiny animals: three new species of minute salamanders (Plethodontidae: Thorius) from Oaxaca, Mexico

scientific article (publication date: 2016)

Body building exercises

scientific article published on 01 February 1992

Concealed weapons: erectile claws in African frogs

scientific article (publication date: 23 August 2008)

Conserved chromatin and repetitive patterns reveal slow genome evolution in frogs

scholarly article published on 17 January 2024

Convergent evolutionary reduction of atrial septation in lungless salamanders

scientific article

Cranial neural crest cells contribute to connective tissue in cranial muscles in the anuran amphibian, Bombina orientalis.

scientific article

Cranial neural crest contributes to the bony skull vault in adult Xenopus laevis: insights from cell labeling studies.

scientific article

Cranial neural crest emergence and migration in the Mexican axolotl (Ambystoma mexicanum).

scientific article

Cranial neural crest-cell migration in the direct-developing frog, Eleutherodactylus coqui: molecular heterogeneity within and among migratory streams.

scientific article published in January 2002

Cranial neural-crest migration and chondrogenic fate in the oriental fire-bellied toad Bombina orientalis: Defining the ancestral pattern of head development in anuran amphibians

scientific article published on 01 July 1996

Cranial ontogeny in Philautus silus (Anura: Ranidae: Rhacophorinae) reveals few similarities with other direct-developing anurans

scientific article

Cranial ontogeny in the direct-developing frog, Eleutherodactylus coqui (Anura: Leptodactylidae), analyzed using whole-mount immunohistochemistry

scientific article published on January 1, 1992

DNA damage in preserved specimens and tissue samples: a molecular assessment

scientific article

Darwin Cloud: Mapping real-world data to Darwin Core

scientific article published in 2017

David Wake: Why are there so many kinds of organisms (but especially salamanders)?

scientific article published on 29 June 2021

Descriptions of five new species of the salamander genus Chiropterotriton (Caudata: Plethodontidae) from eastern Mexico and the status of three currently recognized taxa

scientific article published on 26 May 2020

Development and evolution of the tetrapod skull-neck boundary

scientific article published on 07 January 2020

Development of neuroendocrine components of the thyroid axis in the direct-developing frog Eleutherodactylus coqui: formation of the median eminence and onset of pituitary TSH production

scientific article published on 5 March 2015

Development of the skull of Dermophis mexicanus (amphibia: Gymnophiona), with comments on skull kinesis and amphibian relationships

scientific article published on 01 August 1982

Developmental basis of evolutionary digit loss in the Australian lizard Hemiergis.

scientific article published in June 2003

Developmental origins of a novel gut morphology in frogs

scientific article published on May 2013

Developmental origins of novel gut morphology in frogs

scientific article published in 2013

Diversification of shrub frogs (Rhacophoridae, Pseudophilautus) in Sri Lanka – Timing and geographic context

scientific article published on 16 November 2018

Do larval traits re-evolve? Evidence from the embryogenesis of a direct-developing salamander, Plethodon cinereus

scientific article published on 13 September 2011

Dual embryonic origin and patterning of the pharyngeal skeleton in the axolotl (Ambystoma mexicanum).

scientific article published on May 2015

Early cranial patterning in the direct-developing frog Eleutherodactylus coqui revealed through gene expression.

scientific article published on July 2010

Early limb patterning in the direct-developing salamander Plethodon cinereus revealed by sox9 and col2a1.

scientific article published on 12 March 2018

Egg Development Time and Clutch Size in Two Neotropical Salamanders

scientific article published on 28 November 1979

Environmental Oxygen Exposure Allows for the Evolution of Interdigital Cell Death in Limb Patterning

scientific article published on 13 June 2019

Evolution and development of the vertebrate skull: The role of pattern formation.

scientific article published in January 1993

Evolution of cranial development and the role of neural crest: insights from amphibians

scientific article published in November 2005

Evolution of the head-trunk interface in tetrapod vertebrates

scientific article

Evolutionary Conservation of Thyroid Hormone Receptor and Deiodinase Expression Dynamics in ovo in a Direct-Developing Frog, Eleutherodactylus coqui

scientific article published on 24 May 2019

Evolutionary innovation and conservation in the embryonic derivation of the vertebrate skull.

scientific article

Expression of a novel surfactant protein gene is associated with sites of extrapulmonary respiration in a lungless salamander

article

Fitness-for-Use-Framework-aware Data Quality workflows in Kurator

scientific article published in 2017

Five New Species of Minute Salamanders, Genus Thorius (Caudata: Plethodontidae), from Northern Oaxaca, Mexico

scientific article (publication date: 17 August 1994)

For Some Species, Reduced Size Is the Key to Survival

scientific article published in 1986

Forelimb-hindlimb developmental timing changes across tetrapod phylogeny

scientific article (publication date: October 2007)

From Clinging to Digging: The Postembryonic Skeletal Ontogeny of the Indian Purple Frog, Nasikabatrachus sahyadrensis (Anura: Nasikabatrachidae).

scientific article

Front Cover

Gene expression reveals unique skeletal patterning in the limb of the direct-developing frog, Eleutherodactylus coqui

scientific article

Genetic Differentiation among Plethodontid Salamanders (Genus Bolitoglossa) in Central and South America: Implications for the South American Invasion

scientific article published in 1982

Genetic Variation in a Dwarfed Lineage, the Mexican Salamander Genus Thorius (Amphibia: Plethodontidae): Taxonomic, Ecologic and Evolutionary Implications

scientific article published on 14 December 1983

Haeckel's embryos

scientific article published on 01 February 1998

Haeckel, embryos, and evolution

scientific article

Hidden in the litter: cryptic diversity of the leaf-litter toad Rhinella castaneotica – proboscidea complex revealed through integrative taxonomy, with description of a new species from south-western Amazonia

scientific article

Homology of the cranial vault in birds: new insights based on embryonic fate-mapping and character analysis

scientific article

Inhibition of neural crest migration in Xenopus using antisense slug RNA

scientific article published on 01 September 1999

Kurator: Tools for Improving Fitness for Use of Biodiversity Data.

scientific article published in 2018

Limb development and evolution: a frog embryo with no apical ectodermal ridge (AER)

scientific article (publication date: April 1998)

Limb development in a "nonmodel" vertebrate, the direct-developing frog Eleutherodactylus coqui.

scientific article

MORPHOLOGICAL EVOLUTION

scientific article published on 01 March 1986

Mapping the biosphere: exploring species to understand the origin, organization and sustainability of biodiversity

article

Mechanistic basis of life history evolution in anuran amphibians: thyroid gland development in the direct-developing frog, Eleutherodactylus coqui.

scientific article published on August 1998

Miniaturization and its effects on cranial morphology in plethodontid salamanders, genus Thorius (Amphibia, Plethodontidae): II. The fate of the brain and sense organs and their role in skull morphogenesis and evolution.

scientific article published on September 1983

Molecular anatomy of the developing limb in the coquí frog, Eleutherodactylus coqui

scientific article

Montane Salamanders from the Costa Rica–Panamá Border Region, with Descriptions of Two New Species of Bolitoglossa

scientific article published on 10 September 2007

Morphogenesis and Evolution

Morphological integration in the cranium during anuran metamorphosis.

scientific article published in September 1989

Multiple paternity in Belding's ground squirrel litters

scientific article published on 01 April 1981

Native variant limb skeletal patterns in the red-backed salamander, Plethodon cinereus, are not regenerated

scientific article published on 01 November 1986

Natural History Collections as Emerging Resources for Innovative Education

New Species of Large Black Salamander, GenusBolitoglossa(Plethodontidae) from Western Panamá

scientific article published in August 2001

New Species of Leaf-litter Toad of the Rhinella margaritifera Species Group (Anura: Bufonidae) from Amazonia

scientific article

Ontogeny of the anuran urostyle and the developmental context of evolutionary novelty

scientific article published on 27 January 2020

Patterns of reproductive-mode evolution in Old World tree frogs (Anura, Rhacophoridae)

scientific article published in 2015

Phylotypic stage theory.

scientific article published in April 1998

Pseudotyped retroviruses for infecting axolotl in vivo and in vitro.

scientific article published on 23 January 2013

Regulatory elements of Xenopus col2a1 drive cartilaginous gene expression in transgenic frogs.

scientific article published in January 2010

Review of fate-mapping studies of osteogenic cranial neural crest in vertebrates.

scientific article

Runx2 is essential for larval hyobranchial cartilage formation in Xenopus laevis

scientific article

Segmentation of the vertebrate skull: neural-crest derivation of adult cartilages in the clawed frog, Xenopus laevis

scientific article published on 02 August 2008

Semantic annotation of mutable data

scientific article (publication date: 2013)

Significance of pre-Quaternary climate change for montane species diversity: insights from Asian salamanders (Salamandridae: Pachytriton).

scientific article

Skeletal development in Xenopus laevis (Anura: Pipidae)

scientific article published on October 1, 1992

Skull development during anuran metamorphosis. II. Role of thyroid hormone in osteogenesis.

scientific article published on January 1988

Skull development during anuran metamorphosis: III. Role of thyroid hormone in chondrogenesis.

scientific article published in May 1988

Somite number and vertebrate evolution.

scientific article published on January 1998

Taruga (Anura: Rhacophoridae), a new genus of foam-nesting tree frogs endemic to Sri Lanka

scientific article published in 2011

Technique for revealing the three-dimensional architecture of whole preserved spiculated invertebrates.

scientific article published in March 1984

Terrestrialization, miniaturization and rates of diversification in African puddle frogs (Anura: Phrynobatrachidae)

scientific article (publication date: 2012)

The role of climate and islands in species diversification and reproductive-mode evolution of Old World tree frogs

scientific article published on 11 April 2022

The shape of life: Genes, development, and the evolution of animal form

scholarly article

There is no highly conserved embryonic stage in the vertebrates: implications for current theories of evolution and development.

scientific article

Thorius pennatulus Cope, 1869 (Amphibia, Caudata): proposed conservation of the specific name

scientific article published in 1988

Three New Species of Minute Salamanders (Thorius: Plethodontidae) from Guerrero, México, Including the Report of a Novel Dental Polymorphism in Urodeles

scientific article published on 17 December 1999

Two New Species of Pseudoeurycea (Caudata: Plethodontidae) from the Mountains of Northern Oaxaca, Mexico

scientific article published in August 2005

Use of a ROSA26:GFP transgenic line for long-term Xenopus fate-mapping studies.

scientific article

Use of fluorescent dextran conjugates as a long-term marker of osteogenic neural crest in frogs

scientific article published in May 2004

Using YesWorkflow hybrid queries to reveal data lineage from data curation activities

scientific article published in 2017

Variation and timing of the cranial ossification sequence of the oriental fire-bellied toad, Bombina orientalis (Amphibia, Discoglossidae)

scientific article published on 01 December 1984

Whole-mount staining of Xenopus and other vertebrates.

scientific article published in January 1991

Why are there so many new amphibian species when amphibians are declining?

scientific article published on 01 January 1999

YesWorkflow: A User-Oriented, Language-Independent Tool for Recovering Workflow Information from Scripts