Ectotherms in a Dynamic Environment: Understanding Patterns of Ecology, Distribution, Evolution, and Threats to Species

A special issue of Diversity (ISSN 1424-2818). This special issue belongs to the section "Animal Diversity".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 3588

Special Issue Editors


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Guest Editor
Laboratory of Animal Behaviour and Conservation, College of Life Sciences, Nanjing Forestry University, Nanjing 210095, China
Interests: phylogenomic; historical demography; eco-phylogeography; trait evolution, barcoding bioinformatics, taxonomy; and the evolutionary ecology of invasive and native species

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Guest Editor
Laboratory of Animal Behaviour and Conservation, College of Life Sciences, Nanjing Forestry University, Nanjing 210095, China
Interests: amphibian behavioral ecology and evolutionary biology; cognitive biology; wildlife conservation; human-wildlife interaction; community ecology

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Guest Editor
Laboratory of Animal Behaviour and Conservation, Nanjing Forestry University, Nanjing, China
Interests: amphibians’ biodiversity and conservation; behavioral ecology and evolutionary biology; landscape modeling for ecological requirements; conservation-orientated phylogeography

Special Issue Information

Dear Colleagues,

We are pleased to announce a forthcoming Special Issue in Diversity exploring key aspects of ecology, functional traits mechanisms, distribution, systematics, evolution and conservation, specifically in the context of ectotherms in the changing environment.

In an environment undergoing accelerating changes, due to natural factors and human activities, ectotherms need to cope with the changing conditions that require innovative strategies, greater plasticity, and phenotypic adaptations. Fishes, amphibians and reptiles occupy significant positions in various ecosystems and provide indispensable ecosystem services. Experiencing a higher rate of decline compared to other animal groups, 25% of freshwater fish, 21% of reptiles, and 41% of amphibians are already threatened with extinction. Unprecedented anthropogenic pressures in the form of habitat modification, climate warming, exploitation, and invasive species require constant adaptation in the form of ecological requirements, behavioural and cognitive traits, and morphological and physiological factors.

Extinction risks are unequally distributed across species. Some genera stand out as highly threatened, due to the large number of range-restricted species and the high threat level, and exhibit high rates of population decline. There are above 45,000 recognised species of fish, amphibians and reptiles in the world; however, a substantial number of species still remain undiscovered and undescribed. Even among the described species, many are still characterised by unclear boundaries and evolutionary relationships. This leads to incomplete and unclear phylogenetic classification and as a result the fundamental knowledge about species and several aspects of biology remain obscured.

This Special Issue aims to collate research on fundamental, integrative and applied sciences related to ectotherms across habitat types and spanning both local and global landscapes. We encourage the submission of work focused on population trends, behavioural and cognitive ecology, distribution, systematics, phylogeography, and trait evolution, as well as conservation and ecosystem services. We have kept the focus of this Special Issue broad to accommodate studies highlighting diverse aspects of ecology and conservation to help understand the anthropogenic impacts on the fitness and survival of ectotherm species, inform conservation strategies and develop the sustainable management of ecosystem services. In addition, articles, reviews, syntheses and commentaries on applied approaches to the conservation and management of species in natural environments are welcome. If you are interested or have any questions, please do not hesitate to contact us.

Dr. Siti N. Othman
Dr. Deyatima Ghosh
Prof. Dr. Amaël Borzée
Guest Editors

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Keywords

  • amphibians
  • reptiles
  • behaviour
  • cognition
  • predation
  • morphology
  • bioacoustics
  • distribution
  • population trend
  • evolutionary biology
  • invasion
  • parasitism
  • phylogenetics and phylogeography
  • population genetics
  • trait evolution
  • ecosystem service
  • distribution modelling
  • conservation

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Published Papers (2 papers)

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Research

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18 pages, 2191 KiB  
Article
Meta-Analysis Reveals Behavioral Plasticity, Not Agonistic Behavior, Facilitates Invasion of Brown Anoles (Anolis sagrei) and Replacement of Green Anoles (Anolis carolinensis)
by Maya A. Jackson and Sonny S. Bleicher
Diversity 2024, 16(10), 620; https://doi.org/10.3390/d16100620 - 8 Oct 2024
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Abstract
In a meta-analysis, we examined the behavioral portfolio of invasive brown anoles (Anolis sagrei) and native green anoles (Anolis carolinensis) in urban and non-urban environments. We hypothesized that invasive anoles would display more agonistic and bold signals (head bobbing, [...] Read more.
In a meta-analysis, we examined the behavioral portfolio of invasive brown anoles (Anolis sagrei) and native green anoles (Anolis carolinensis) in urban and non-urban environments. We hypothesized that invasive anoles would display more agonistic and bold signals (head bobbing, dewlap extensions, and pushups) than their native-range counterparts and their native competitors. We found that in urban settings, anoles of both species signaled more with dewlap extensions than with head bobs. Brown anoles displayed significantly more in non-urban habitats and their native range compared to urban habitats and invasive ranges. The outcome of our analysis suggests that brown anoles have plastic behavioral portfolios, whereas green anoles have relatively balanced preferences for head bobbing, irrespective of the habitat in which the populations were collected. We attribute the success of the brown anole invasion to the flexible strategy in the face of higher mate competition, higher predation risks, and less resource competition in both urban and invasive ranges. Lastly, we observed publication biases. More studies were conducted with urban and invasive brown anoles and specifically in manipulative mesocosm experimental settings—transplanting populations from native field settings. We show this altered the display rates across all studied signals. Full article
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Review

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28 pages, 11421 KiB  
Review
Understanding the Distribution, Behavioural Ecology, and Conservation Status of Asian Pelophylax
by Hina Amin and Amaël Borzée
Diversity 2024, 16(5), 259; https://doi.org/10.3390/d16050259 - 25 Apr 2024
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Abstract
Understanding species from an ecological and phylogenetic perspective facilitates an understanding of their conservation status in relation to the changing world. The frog genus Pelophylax is among the largest in terms of amphibian biomass in the Palearctic, but species have not been thoroughly [...] Read more.
Understanding species from an ecological and phylogenetic perspective facilitates an understanding of their conservation status in relation to the changing world. The frog genus Pelophylax is among the largest in terms of amphibian biomass in the Palearctic, but species have not been thoroughly studied at the Asian continental scale. The phylogeographic relationship, behavioural ecology, and ecological requirements within the genus need clarification, despite generally good local coverage. Here, for the first time, we conducted a literature review focused on phylogeography and behavioural ecology, supported by ecological niche modelling of twelve Asian Pelophylax lineages. Finally, we compiled the known threats for each of the lineages. We first determined the presence of twelve species and species-candidate lineages. In terms of behavioural ecology, the main difference among lineages is the time to metamorphosis and the time to reach sexual maturity. The ecological models highlighted a match between the known presence of each clade and their suitable habitat and highlighted the Syr Darya drainage on the eastern shore of the Caspian Sea for the non-described Pelophylax “Syr Darya lineage”. Finally, we highlighted the greatest variation among lineages in terms of threats, as some lineages are threatened by numerous factors, whereas others are expanding. Full article
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