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Open research questions in Amphibian and Reptile Biology

150 unresolved questions extracted from the limitations and future-work sections of 759 Amphibian and Reptile Biology papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • further study on the evolutionary mechanisms driving morphological variation in snakes, - investigation of other factors influencing morphological diversity, - analysis of morphological variation in other taxa

    From head to tail: does habitat use drive morphological variation in snakes? · 2026 · DOI

  • Further studies could investigate the fundamental niche of L. guentherpetersi, - Research could explore the effects of biotic interactions, dispersal accessibility, and historical constraints on distribution on the realized climatic niche of L. guentherpetersi, - Studies could examine the impact of soil microclimate, the thermal regime of the substrate surface, sand granulometry, vegetation structure, soil moisture, microrefugia availability, and anthropogenic transformation of coastal ecosystems on the niche of L. guentherpetersi

    Climatic niche partitioning between the parthenogenetic butterfly lizard Leiolepis guentherpetersi and its sexual parental species L. guttata and L. reevesii (Squamata: Agamidae) · 2026 · DOI

  • The lack of documentation of larval stages of Southeast Asian ranid frogs limits comprehensive studies. The study of tadpole morphology is important for species identification and conservation.

    Larval description and current distribution of Hylarana luctuosa (Peters, 1871) from Thailand (Amphibia: Anura: Ranidae) · 2026 · DOI

  • The taxonomy and systematics of the Typhlopidae family remain poorly understood. There is a lack of biodiversity studies in the Qinghai-Xizang Plateau region. The species diversity of blind snakes may be underestimated.

    A new species of blind snake, Indotyphlops (Serpentes, Typhlopidae), from the Qinghai-Xizang Plateau, China · 2026 · DOI

  • Our study expands the taxonomic knowledge of the genus and underscores the importance of further exploration in high-Andean ecosystems of southwestern Colombia, where biodiversity remains underexplored.

    A new species of Niceforonia (Anura: Craugastoridae) from the Colombian Massif, southwestern Colombia · 2026 · DOI

  • A review of the literature revealed that light-based lures added to funnel traps are effective for increasing captures of nearly every Ambystoma species tested to date, but other groups showed mixed results.

    Testing the Effect of Glow Sticks on Amphibian Captures: A Literature Review and Case Study from Vernal Ponds in Iowa · 2026 · DOI

  • In contrast, relatively little is known about the roles of skin-resident immune cells, such as mast cells, in amphibian antifungal immunity.

    Amphibian mast cells offer antifungal protection 3810 · 2025 · DOI

  • Many of these changes occur through programmed alterations to gene expression patterns, but the molecular mechanisms and gene-regulatory networks underlying these adaptive changes remain poorly understood.

    The genetic regulatory architecture and epigenomic basis for age-related changes in rattlesnake venom · 2024 · DOI

  • The conservation status of Charadrahyla species is a concern due to their limited distribution and potential extinction risk. There is a need for updated distribution maps for species of Charadrahyla inhabiting Oaxaca.

    A new treefrog of the genus Charadrahyla (Anura, Hylidae) from Oaxaca, Mexico, with comments on the conservation status and distribution of related species · 2026 · DOI

  • Mendelson and Campbell (1999) apparently failed to detect differences between C. viruela and C. nephila in their revision of preserved specimens, and their paratypes appear to include both species, suggesting a need for more rigorous morphological re-examination of type material.

    A new treefrog of the genus Charadrahyla (Anura, Hylidae) from Oaxaca, Mexico, with comments on the conservation status and distribution of related species · 2026 · DOI

  • The study only examined tail regeneration in the common house gecko. The sample size was limited to 20 adults. The study did not investigate the long-term effects of tail loss.

    Tail regeneration in the common house gecko Hemidactylus frenatus: Sexual differences and environmental determinants · 2026 · DOI

  • The effects of sex and environmental conditions on tail regeneration are not well understood. Prior studies have not investigated the dynamics of tail regeneration in the common house gecko.

    Tail regeneration in the common house gecko Hemidactylus frenatus: Sexual differences and environmental determinants · 2026 · DOI

  • The cryptic nature of alpine geckos makes them difficult to detect. The inaccessible nature of the alpine zone hampers the development of reliable monitoring methods. Limited funding is available for conservation efforts.

    Challenges in alpine lizard conservation: evaluating monitoring methods for cryptic alpine geckos · 2026 · DOI

  • Limited availability of habitat at each site. Low detection rates of geckos using the monitoring methods. Requirement for increased funding to increase the number of monitoring sessions.

    Challenges in alpine lizard conservation: evaluating monitoring methods for cryptic alpine geckos · 2026 · DOI

  • The study has an 'active lizard bias' due to only measuring body temperatures of individuals that emerged and were detectable. The temperatures of buried or completely inactive lizards during extreme thermal conditions remain unknown.

    High activity costs of behavioral buffering under negative warming tolerance in desert Liolaemus lizards · 2026 · DOI

  • The study has limited sampling of some species, which may affect the accuracy of the phylogenetic analysis. The use of genetic information from only two genes (16S and cyt b) may not provide a complete picture of the relationships among species.

    Hidden in the mist: Three new species of salamanders of the genus Pseudoeurycea (Amphibia: Plethodontidae) from Oaxaca, Mexico · 2026 · DOI

  • Further study of the phylogenetic relationships among species of Pseudoeurycea. Investigation of the conservation status of the new species and their habitats. Continued exploration and research in Mexico's diverse biota.

    Hidden in the mist: Three new species of salamanders of the genus Pseudoeurycea (Amphibia: Plethodontidae) from Oaxaca, Mexico · 2026 · DOI

  • Abstract Acoustic communication in anurans exhibits considerable plasticity, yet the role of nonlinear phenomena (NLP) and their environmental modulation remain poorly understood.

    Shifts in the Ratio of Nonlinear Phenomena Between Advertisement and Aggressive Calls are Influenced by Temperature in the Free-Toed Frog Eleutherodactylus interorbitalis · 2026 · DOI

  • The paper identifies the need for preserving biological information. The integration between rescue programs and scientific collections is highlighted as a crucial aspect.

    A Contribuição dos Resgates de Fauna para a Coleção Herpetológica do Norte Fluminense · 2026 · DOI

  • The limited frequency response of the built-in microphone of the recording device. The difficulty of handling and illuminating the frog during recording.

    An insight into the molecular identity and distribution of Microhyla taraiensis (Anura, Microhylidae) in Khyber Pakhtunkhwa, Pakistan · 2026 · DOI

  • The built-in microphone of the recording device has a limited frequency response, which may not capture the full spectral range of the call. The study only analyzed a limited number of individuals and localities.

    An insight into the molecular identity and distribution of Microhyla taraiensis (Anura, Microhylidae) in Khyber Pakhtunkhwa, Pakistan · 2026 · DOI

  • The study identifies a gap in understanding the spatial ecology and habitat selection of San Cristóbal lava lizards. The research aims to address this gap by investigating the factors that influence habitat selection and spatial ecology.

    Seasonal variations in spatial ecology, habitat use and habitat selection by San Cristóbal lava lizards Microlophus bivittatus in Galápagos · 2026 · DOI

  • The study did not formally account for imperfect detection. The sample size for some years was limited, with only 12 waterbodies surveyed in 2023.

    Consumptive and non-consumptive predator effects from native fish but not invasive crayfish on Ambystoma salamander larvae · 2026 · DOI

  • The specific impacts of invasive crayfish on native species are not well understood. There is a need to evaluate the consumptive and non-consumptive effects of invasive species on native biodiversity.

    Consumptive and non-consumptive predator effects from native fish but not invasive crayfish on Ambystoma salamander larvae · 2026 · DOI

  • Anthropogenic pressures on snake habitats. The need to conserve snake populations in coastal areas. The challenge of managing snake habitats in the face of human activities.

    Uso de hábitat das serpentes de São João da Barra depositadas na Coleção Herpetológica do Norte Fluminense · 2026 · DOI

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150 open questions have been extracted from the limitations and future-work passages of 759 Amphibian and Reptile Biology papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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