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Lewis Najev BS, Neiman M. Invasive freshwater snails are less sensitive to population density than native conspecifics. Ecol Evol 2024; 14:e11161. [PMID: 38774144 PMCID: PMC11106046 DOI: 10.1002/ece3.11161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/19/2024] [Accepted: 03/01/2024] [Indexed: 05/24/2024] Open
Abstract
Understanding how and why some species or lineages become invasive is critically important for effectively predicting and mitigating biological invasions. Here, we address an important unanswered question in invasion biology: do key life-history traits of invasive versus native lineages within a species differ in response to key environmental stressors? We focus on the environmental factor of population density, which is a fundamental characteristic of all populations, and investigate how changes in density affect native versus invasive Potamopyrgus antipodarum (New Zealand mudsnail). P. antipodarum has invaded 39 countries and detrimentally affects invaded environments. Previous studies of native and invasive populations and from laboratory experiments have demonstrated that growth and reproduction of P. antipodarum is sensitive to population density, though whether and how this sensitivity varies across native versus invasive lineages remains uncharacterized. We quantified individual growth rate and reproduction in P. antipodarum from multiple distinct native and invasive lineages across three different population density treatments. The growth of native but not invasive lineages decreased as density increased. There was no differential effect of density treatment on embryo production of invasive versus native snails, but a significantly higher proportion of snails were reproductive in high density compared to intermediate density for invasive lineages. In native lineages, there were no significant differences in the relative frequency of reproductive snails across density treatments. While the extent to which these results from our laboratory study can be extrapolated to the more complex natural world remain unclear, our findings are consistent with a scenario where differential sensitivity to population density could help explain why some lineages become successful invaders. Our findings also align with previous studies that show that invasive P. antipodarum lineages exhibit a relatively wide range of tolerance to environmental stressors.
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Affiliation(s)
| | - Maurine Neiman
- Department of BiologyUniversity of IowaIowa CityIowaUSA
- Department of Gender, Women's and Sexuality StudiesUniversity of IowaIowa CityIowaUSA
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Donne C, Larkin K, Adrian-Tucci C, Good A, Kephart C, Neiman M. Life-history trait variation in native versus invasive asexual New Zealand mud snails. Oecologia 2022; 199:785-795. [PMID: 35877050 DOI: 10.1007/s00442-022-05222-8] [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] [Received: 06/20/2021] [Accepted: 06/19/2022] [Indexed: 11/26/2022]
Abstract
Potamopyrgus antipodarum is a New Zealand freshwater snail that is invasive worldwide. While native P. antipodarum populations are characterized by frequent coexistence between obligately sexual and obligately asexual individuals, only the asexual snails are known to invade other ecosystems. Despite low genetic diversity and the absence of sex, invasive asexual P. antipodarum are highly successful. Here, we quantified variation in three key life-history traits across invasive P. antipodarum lineages and compared this variation to already documented variation in these same traits in asexual native lineages to provide a deeper understanding of why some lineages become invasive. In particular, we evaluated if invasive lineages of P. antipodarum could be successful because they represent life-history variation from native ancestors that could facilitate invasion. We found that invasive snails displayed a non-representative sample of native diversity, with invasive snails growing more slowly and maturing more rapidly than their native counterparts. These results are consistent with expectations of a scenario where invasive lineages represent a subset of native variation that is beneficial in the setting of invasion. Together, these results help illuminate the mechanisms driving the worldwide expansion of invasive populations of these snails.
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Affiliation(s)
- Carina Donne
- Department of Biology, University of Iowa, Iowa City, IA, 52242, USA.
- Department of Biology, Colorado State University, Fort Collins, CO, 80521, USA.
| | - Katelyn Larkin
- Department of Biology, University of Iowa, Iowa City, IA, 52242, USA
| | | | - Abby Good
- Department of Biology, University of Iowa, Iowa City, IA, 52242, USA
| | - Carson Kephart
- Department of Biology, University of Iowa, Iowa City, IA, 52242, USA
| | - Maurine Neiman
- Department of Biology, University of Iowa, Iowa City, IA, 52242, USA
- Department of Gender, Women's, and Sexuality Studies, University of Iowa, Iowa City, IA, 52242, USA
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The New Zealand mud snail (Potamopyrgus antipodarum): autecology and management of a global invader. Biol Invasions 2022. [DOI: 10.1007/s10530-021-02681-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Matoo OB, Neiman M. Bringing Disciplines and People Together to Characterize the Plastic and Genetic Responses of Molluscs to Environmental Change. Integr Comp Biol 2021; 61:1689-1698. [PMID: 34435639 PMCID: PMC8699093 DOI: 10.1093/icb/icab186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Molluscs are remarkably diverse and are found across nearly all ecosystems, meaning that members of this ancient animal phylum provide a powerful means to study genomic-phenotype connections in a climate change framework. Recent advances in genomic sequencing technologies and genome assembly approaches finally allow the relatively cheap and tractable assembly of high-quality mollusc genome resources. After a brief review of these issues and advances, we use a case-study approach to provide some concrete examples of phenotypic plasticity and genomic adaptation in molluscs in response to environmental factors expected to be influenced by climate change. Our goal is to use molluscs as a "common currency" to demonstrate how organismal and evolutionary biologists can use natural systems to make phenotype-genotype connections in the context of changing environments. In parallel, we emphasize the critical need to collaborate and integrate findings across taxa and disciplines in order to use new data and information to advance our understanding of mollusc biology in the context of global environmental change. We end with a brief synthetic summary of the papers inspired by the 2021 SICB Symposium "Genomic Perspectives in Comparative Physiology of Molluscs: Integration across Disciplines".
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Affiliation(s)
- Omera B Matoo
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln 68588, NE, USA
| | - Maurine Neiman
- Department of Biology, University of Iowa, Iowa City 52242, IA, USA.,Department of Gender, Women's, and Sexuality Studies, University of Iowa, Iowa City 52242, IA, USA
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McElroy KE, Müller S, Lamatsch DK, Bankers L, Fields PD, Jalinsky JR, Sharbrough J, Boore JL, Logsdon JM, Neiman M. Asexuality Associated with Marked Genomic Expansion of Tandemly Repeated rRNA and Histone Genes. Mol Biol Evol 2021; 38:3581-3592. [PMID: 33885820 PMCID: PMC8382920 DOI: 10.1093/molbev/msab121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
How does asexual reproduction influence genome evolution? Although is it clear that genomic structural variation is common and important in natural populations, we know very little about how one of the most fundamental of eukaryotic traits-mode of genomic inheritance-influences genome structure. We address this question with the New Zealand freshwater snail Potamopyrgus antipodarum, which features multiple separately derived obligately asexual lineages that coexist and compete with otherwise similar sexual lineages. We used whole-genome sequencing reads from a diverse set of sexual and asexual individuals to analyze genomic abundance of a critically important gene family, rDNA (the genes encoding rRNAs), that is notable for dynamic and variable copy number. Our genomic survey of rDNA in P. antipodarum revealed two striking results. First, the core histone and 5S rRNA genes occur between tandem copies of the 18S-5.8S-28S gene cluster, a unique architecture for these crucial gene families. Second, asexual P. antipodarum harbor dramatically more rDNA-histone copies than sexuals, which we validated through molecular and cytogenetic analysis. The repeated expansion of this genomic region in asexual P. antipodarum lineages following distinct transitions to asexuality represents a dramatic genome structural change associated with asexual reproduction-with potential functional consequences related to the loss of sexual reproduction.
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Affiliation(s)
- Kyle E McElroy
- Ecology, Evolutionary, and Organismal Biology, Iowa State University, Ames, IA, USA
- Department of Biology, University of Iowa, Iowa City, IA, USA
| | - Stefan Müller
- Institute of Human Genetics, Munich University Hospital, Ludwig-Maximilians University, Munich, Germany
| | - Dunja K Lamatsch
- Research Department for Limnology, University of Innsbruck, Mondsee, Mondsee, Austria
| | - Laura Bankers
- Division of Infectious Diseases, University of Colorado—Anschutz Medical Campus, Aurora, CO, USA
| | - Peter D Fields
- Department of Environmental Sciences, Zoology, University of Basel, Basel, Switzerland
| | | | - Joel Sharbrough
- Biology Department, New Mexico Institute of Mining and Technology, Socorro, NM, USA
- Department of Biology, Colorado State University, Fort Collins, CO, USA
| | - Jeffrey L Boore
- Providence St. Joseph Health and Institute for Systems Biology, Seattle, WA, USA
| | - John M Logsdon
- Department of Biology, University of Iowa, Iowa City, IA, USA
| | - Maurine Neiman
- Department of Biology, University of Iowa, Iowa City, IA, USA
- Department of Gender, Women's, and Sexuality Studies, University of Iowa, Iowa City, IA, USA
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Donne C, Neiman M, Woodell JD, Haase M, Verhaegen G. A layover in Europe: Reconstructing the invasion route of asexual lineages of a New Zealand snail to North America. Mol Ecol 2020; 29:3446-3465. [PMID: 32741004 DOI: 10.1111/mec.15569] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 12/12/2022]
Abstract
Non-native invasive species are threatening ecosystems and biodiversity worldwide. High genetic variation is thought to be a critical factor for invasion success. Accordingly, the global invasion of a few clonal lineages of the gastropod Potamopyrgus antipodarum is thus both puzzling and has the potential to help illuminate why some invasions succeed while others fail. Here, we used SNP markers and a geographically broad sampling scheme (N = 1617) including native New Zealand populations and invasive North American and European populations to provide the first widescale population genetic assessment of the relationships between and among native and invasive P. antipodarum. We used a combination of traditional and Bayesian molecular analyses to demonstrate that New Zealand populations harbour very high diversity relative to the invasive populations and are the source of the two main European genetic lineages. One of these two European lineages was in turn the source of at least one of the two main North American genetic clusters of invasive P. antipodarum, located in Lake Ontario. The other widespread North American group had a more complex origin that included the other European lineage and two New Zealand clusters. Altogether, our analyses suggest that just a small handful of clonal lineages of P. antipodarum were responsible for invasion across continents. Our findings provide critical information for prevention of additional invasions and control of existing invasive populations and are of broader relevance towards understanding the establishment and evolution of asexual populations and the forces driving biological invasion.
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Affiliation(s)
- Carina Donne
- Department of Biology, Department of Gender, Women's, and Sexuality Studies, The University of Iowa, Iowa, USA
| | - Maurine Neiman
- Department of Biology, Department of Gender, Women's, and Sexuality Studies, The University of Iowa, Iowa, USA
| | - James D Woodell
- Department of Biology, Department of Gender, Women's, and Sexuality Studies, The University of Iowa, Iowa, USA
| | - Martin Haase
- AG Vogelwarte, Zoological Institute and Museum, University of Greifswald, Greifswald, Germany
| | - Gerlien Verhaegen
- AG Vogelwarte, Zoological Institute and Museum, University of Greifswald, Greifswald, Germany.,Advanced Science-Technology Research (ASTER) Program, Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science Technology (JAMSTEC), Yokosuka, Japan
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Phosphorus availability in the source population influences response to dietary phosphorus quantity in a New Zealand freshwater snail. Oecologia 2017; 185:595-605. [PMID: 29058123 DOI: 10.1007/s00442-017-3983-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 10/07/2017] [Indexed: 10/18/2022]
Abstract
We investigated whether previously documented variation among populations in availability of dietary phosphorus (P) is linked to heterogeneity in growth rate of the New Zealand freshwater snail Potamopyrgus antipodarum on a P-limited diet. We chose this system because P. antipodarum inhabits water bodies that vary in P availability and because P. antipodarum growth rate varies considerably in response to low P. We quantified specific growth rate and alkaline phosphatase (AP) expression in a diverse array of juvenile P. antipodarum fed high vs. low-P diets. We found strong associations between P content of epilithon in the source lake and P. antipodarum growth rate on high vs. low-P diets, with snails collected from lakes with relatively low-P epilithon showing the greatest increase in growth rate on the high-P relative to low-P diet. We also found substantial intraspecific variation in growth response to P limitation. Expression of AP also varied among lineages and was negatively associated with C: P of lake epilithon but did not explain the relationship between C: P in the lake of origin and sensitivity to P limitation. Together, our results demonstrate a strong signature of the P environment in the lake of origin on how this snail responds to P limitation as well as preliminary evidence for intraspecific variation of AP expression in animals.
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Leal MC, Seehausen O, Matthews B. The Ecology and Evolution of Stoichiometric Phenotypes. Trends Ecol Evol 2016; 32:108-117. [PMID: 28017452 DOI: 10.1016/j.tree.2016.11.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 11/18/2016] [Accepted: 11/22/2016] [Indexed: 12/21/2022]
Abstract
Ecological stoichiometry has generated new insights into how the balance of elements affects ecological interactions and ecosystem processes, but little is known about the ecological and evolutionary dynamics of stoichiometric traits. Understanding the origins and drivers of stoichiometric trait variation between and within species will improve our understanding about the ecological responses of communities to environmental change and the ecosystem effects of organisms. In addition, studying the plasticity, heritability, and genetic basis of stoichiometric traits might improve predictions about how organisms adapt to changing environmental conditions, and help to identify interactions and feedbacks between phenotypic evolution and ecosystem processes.
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Affiliation(s)
- Miguel C Leal
- Department of Fish Ecology and Evolution, Swiss Federal Institute of Aquatic Science and Technology (Eawag), Center for Ecology, Evolution, and Biogeochemistry, 6047 Kastanienbaum, Switzerland.
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Swiss Federal Institute of Aquatic Science and Technology (Eawag), Center for Ecology, Evolution, and Biogeochemistry, 6047 Kastanienbaum, Switzerland; Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
| | - Blake Matthews
- Department of Aquatic Ecology, Eawag, Center for Ecology, Evolution, and Biogeochemistry, 6047 Kastanienbaum, Switzerland
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