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Sabolić I, Mira Ó, Brandt DYC, Lisičić D, Stapley J, Novosolov M, Bakarić R, Cizelj I, Glogoški M, Hudina T, Taverne M, Allentoft ME, Nielsen R, Herrel A, Štambuk A. Plastic and genomic change of a newly established lizard population following a founder event. Mol Ecol 2024; 33:e17255. [PMID: 38133599 DOI: 10.1111/mec.17255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 12/06/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023]
Abstract
Understanding how phenotypic divergence arises among natural populations remains one of the major goals in evolutionary biology. As part of competitive exclusion experiment conducted in 1971, 10 individuals of Italian wall lizard (Podarcis siculus (Rafinesque-Schmaltz, 1810)) were transplanted from Pod Kopište Island to the nearby island of Pod Mrčaru (Adriatic Sea). Merely 35 years after the introduction, the newly established population on Pod Mrčaru Island had shifted their diet from predominantly insectivorous towards omnivorous and changed significantly in a range of morphological, behavioural, physiological and ecological characteristics. Here, we combine genomic and quantitative genetic approaches to determine the relative roles of genetic adaptation and phenotypic plasticity in driving this rapid phenotypic shift. Our results show genome-wide genetic differentiation between ancestral and transplanted population, with weak genetic erosion on Pod Mrčaru Island. Adaptive processes following the founder event are indicated by highly differentiated genomic loci associating with ecologically relevant phenotypic traits, and/or having a putatively adaptive role across multiple lizard populations. Diverged traits related to head size and shape or bite force showed moderate heritability in a crossing experiment, but between-population differences in these traits did not persist in a common garden environment. Our results confirm the existence of sufficient additive genetic variance for traits to evolve under selection while also demonstrating that phenotypic plasticity and/or genotype by environment interactions are the main drivers of population differentiation at this early evolutionary stage.
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Affiliation(s)
- Iva Sabolić
- Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - Óscar Mira
- Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - Débora Y C Brandt
- Department of Integrative Biology, University of Berkeley, Berkeley, California, USA
| | - Duje Lisičić
- Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - Jessica Stapley
- Department of Environmental Sciences, ETH Zurich, Zurich, Switzerland
| | - Maria Novosolov
- Lundbeck Foundation GeoGenetics Centre, GLOBE Institute, University of Copenhagen, Copenhagen, Denmark
| | - Robert Bakarić
- Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - Ivan Cizelj
- Zoological Garden of Zagreb, Zagreb, Croatia
| | - Marko Glogoški
- Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | | | - Maxime Taverne
- C.N.R.S/M.N.H.N., Département d'Ecologie et de Gestion de la Biodiversité, Paris, France
| | - Morten E Allentoft
- Lundbeck Foundation GeoGenetics Centre, GLOBE Institute, University of Copenhagen, Copenhagen, Denmark
- Trace and Environmental DNA (TrEnD) Laboratory, School of Molecular and Life Sciences, Curtin University, Perth, Western Australia, Australia
| | - Rasmus Nielsen
- Department of Integrative Biology, University of Berkeley, Berkeley, California, USA
| | - Anthony Herrel
- C.N.R.S/M.N.H.N., Département d'Ecologie et de Gestion de la Biodiversité, Paris, France
- Department of Biology, Evolutionary Morphology of Vertebrates, Ghent University, Ghent, Belgium
- Department of Biology, University of Antwerp, Wilrijk, Belgium
- Naturhistorisches Museum Bern, Bern, Switzerland
| | - Anamaria Štambuk
- Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
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Amer A, Spears S, Vaughn PL, Colwell C, Livingston EH, McQueen W, Schill A, Reichard DG, Gangloff EJ, Brock KM. Physiological phenotypes differ among color morphs in introduced common wall lizards (Podarcis muralis). Integr Zool 2024; 19:505-523. [PMID: 37884464 DOI: 10.1111/1749-4877.12775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Many species exhibit color polymorphisms which have distinct physiological and behavioral characteristics. However, the consistency of morph trait covariation patterns across species, time, and ecological contexts remains unclear. This trait covariation is especially relevant in the context of invasion biology and urban adaptation. Specifically, physiological traits pertaining to energy maintenance are crucial to fitness, given their immediate ties to individual reproduction, growth, and population establishment. We investigated the physiological traits of Podarcis muralis, a versatile color polymorphic species that thrives in urban environments (including invasive populations in Ohio, USA). We measured five physiological traits (plasma corticosterone and triglycerides, hematocrit, body condition, and field body temperature), which compose an integrated multivariate phenotype. We then tested variation among co-occurring color morphs in the context of establishment in an urban environment. We found that the traits describing physiological status and strategy shifted across the active season in a morph-dependent manner-the white and yellow morphs exhibited clearly different multivariate physiological phenotypes, characterized primarily by differences in plasma corticosterone. This suggests that morphs have different strategies in physiological regulation, the flexibility of which is crucial to urban adaptation. The white-yellow morph exhibited an intermediate phenotype, suggesting an intermediary energy maintenance strategy. Orange morphs also exhibited distinct phenotypes, but the low prevalence of this morph in our study populations precludes clear interpretation. Our work provides insight into how differences among stable polymorphisms exist across axes of the phenotype and how this variation may aid in establishment within novel environments.
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Affiliation(s)
- Ali Amer
- Department of Biological Sciences, Ohio Wesleyan University, Delaware, Ohio, USA
| | - Sierra Spears
- Department of Biological Sciences, Ohio Wesleyan University, Delaware, Ohio, USA
| | - Princeton L Vaughn
- Department of Biological Sciences, Ohio Wesleyan University, Delaware, Ohio, USA
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey, USA
| | - Cece Colwell
- Department of Biological Sciences, Ohio Wesleyan University, Delaware, Ohio, USA
| | - Ethan H Livingston
- Department of Biological Sciences, Ohio Wesleyan University, Delaware, Ohio, USA
| | - Wyatt McQueen
- Department of Biological Sciences, Ohio Wesleyan University, Delaware, Ohio, USA
| | - Anna Schill
- Department of Biological Sciences, Ohio Wesleyan University, Delaware, Ohio, USA
- Department of Biology, Idaho State University, Pocatello, Idaho, USA
| | - Dustin G Reichard
- Department of Biological Sciences, Ohio Wesleyan University, Delaware, Ohio, USA
| | - Eric J Gangloff
- Department of Biological Sciences, Ohio Wesleyan University, Delaware, Ohio, USA
| | - Kinsey M Brock
- Department of Environmental Science, Policy, and Management, College of Natural Resources, University of California, Berkeley, USA
- Museum of Vertebrate Zoology, University of California, Berkeley, USA
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Fisher S, Fisher RN, Pauly GB. Hidden in Plain Sight: Detecting Invasive Species When They Are Morphologically Similar to Native Species. FRONTIERS IN CONSERVATION SCIENCE 2022. [DOI: 10.3389/fcosc.2022.846431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Early detection and rapid response (EDRR) can help mitigate and control invasive species outbreaks early on but its success is dependent on accurate identification of invasive species. We evaluated a novel outbreak in San Diego County, California of the Sonoran Spotted Whiptail (Aspidoscelis sonorae) in order to confirm their spread as well as quantify how to better detect and potentially manage this invasive species in California. We found that A. sonorae went undetected for over two years due to its morphological similarity to native whiptails and that it has spread rapidly since they were first observed. There are two species of native California whiptails with which A. sonorae can be confused locally, the Orange-throated Whiptail (Aspidoscelis hyperythrus), and to a lesser extent the Tiger Whiptail (Aspidoscelis tigris). We review key diagnostic features to distinguish A. sonorae from native California whiptails. We also discuss how to efficiently use widely available community science tools to rapidly assess a novel invasive species outbreak and outline suggestions to help manage cryptic invasive species.
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Pettit L, Brown GP, Ward‐Fear G, Shine R. Anthropogenically modified habitats favor bigger and bolder lizards. Ecol Evol 2021; 11:1586-1597. [PMID: 33613991 PMCID: PMC7882987 DOI: 10.1002/ece3.7124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 11/03/2020] [Accepted: 11/26/2020] [Indexed: 11/10/2022] Open
Abstract
Anthropogenic activities often create distinctive but discontinuously distributed habitat patches with abundant food but high risk of predation. Such sites can be most effectively utilized by individuals with specific behaviors and morphologies. Thus, a widespread species that contains a diversity of sizes and behavioral types may be pre-adapted to exploiting such hotspots. In eastern Australia, the giant (to >2 m) lizard Varanus varius (lace monitor) utilizes both disturbed (campground) and undisturbed (bushland) habitats. Our surveys of 27 sites show that lizards found in campgrounds tended to be larger and bolder than those in adjacent bushland. This divergence became even more marked after the arrival of a toxic invasive species (the cane toad, Rhinella marina) caused high mortality in larger and bolder lizards. Some of the behavioral divergences between campground and bushland lizards may be secondary consequences of differences in body size, but other habitat-associated divergences in behavior are due to habituation and/or nonrandom mortality.
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Affiliation(s)
- Lachlan Pettit
- School of Life and Environmental SciencesUniversity of SydneySydneyNSWAustralia
| | - Gregory P. Brown
- Department of Biological SciencesMacquarie UniversitySydneyNSWAustralia
| | - Georgia Ward‐Fear
- Department of Biological SciencesMacquarie UniversitySydneyNSWAustralia
| | - Richard Shine
- School of Life and Environmental SciencesUniversity of SydneySydneyNSWAustralia
- Department of Biological SciencesMacquarie UniversitySydneyNSWAustralia
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