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Sahanashree R, Punnath A, Rajan Priyadarsanan D. A remarkable new species of Paraparatrechina Donisthorpe (1947) (Hymenoptera, Formicidae, Formicinae) from the Eastern Himalayas, India. Zookeys 2024; 1203:159-172. [PMID: 38855795 PMCID: PMC11161688 DOI: 10.3897/zookeys.1203.114168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 04/16/2024] [Indexed: 06/11/2024] Open
Abstract
A new ant species, Paraparatrechinaneela sp. nov., with a captivating metallic-blue color is described based on the worker caste from the East Siang district of Arunachal Pradesh, northeastern India. This discovery signifies the first new species of Paraparatrechina in 121 years, since the description of the sole previously known species, P.aseta (Forel, 1902), in the Indian subcontinent.
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Affiliation(s)
- Ramakrishnaiah Sahanashree
- Ashoka Trust for Research in Ecology and the Environment, Royal Enclave, Srirampura, Jakkur Post, Bengaluru – 560064, Karnataka, IndiaAshoka Trust for Research in Ecology and the EnvironmentBengaluruIndia
| | - Aswaj Punnath
- Entomology and Nematology Department, University of Florida, 1881 Natural Area Drive, Gainesville, FL, 32611, USAUniversity of FloridaGainesvilleUnited States of America
| | - Dharma Rajan Priyadarsanan
- Ashoka Trust for Research in Ecology and the Environment, Royal Enclave, Srirampura, Jakkur Post, Bengaluru – 560064, Karnataka, IndiaAshoka Trust for Research in Ecology and the EnvironmentBengaluruIndia
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2
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Janda M. Becoming urban - how city life shapes the social structure and genetics of ants. Mol Ecol 2022; 31:4589-4592. [PMID: 35962743 PMCID: PMC9543373 DOI: 10.1111/mec.16657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/21/2022] [Indexed: 11/03/2022]
Abstract
Cities and urban environments can do peculiar things to biodiversity that shares them with us. How cities affect their invited and uninvited inhabitants has become an increasingly important question. More than half of the world's population dwells in urban areas, and these environments will keep expanding considerably. Understanding how this relatively recent, rapid, and pervasive form of landscape modification influences the ecology and evolution of organisms that cannot escape, or may benefit from it, is an emerging field of biology. Although we are aware of how some birds, mammals or plants respond to urban environments, less is known about insects and invertebrates in general. In this issue of Molecular Ecology, Blumenfeld et al. (2022) bring new remarkable insights into how a common ant species adjusts to urban settings across the United States by changing its social structure and behaviour. Using a large‐scale molecular, chemical and behavioural dataset, they document how the odorous house ant Tapinoma sessile differs in its colony organisation and dispersal strategy between rural and urban habitats. In each of the study regions and continent‐wide, rural and urban colonies are genetically and chemically differentiated, suggesting that urban settings act as potent agents of selection and isolation. The novelty and importance of this study are that it documents multiple independent transitions toward the same social organisation and the apparent effect of habitat on the life history of a eusocial insect species.
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Affiliation(s)
- Milan Janda
- Investigador Conacyt, Escuela Nacional de Estudios Superiores Unidad MoreliaUniversidad Nacional Autonoma de MexicoMoreliaMexico
- Department of Zoology, Faculty of SciencePalacky University OlomoucOlomoucCzech Republic
- Institute of EntomologyBiology Centre Czech Academy of SciencesCeske BudejoviceCzech Republic
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3
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Tonione MA, Bi K, Dunn RR, Lucky A, Portik DM, Tsutsui ND. Phylogeography and population genetics of a widespread cold-adapted ant, Prenolepis imparis. Mol Ecol 2022; 31:4884-4899. [PMID: 35866574 DOI: 10.1111/mec.16624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 11/30/2022]
Abstract
As species arise, evolve, and diverge, they are shaped by forces that unfold across short and long time scales and at both local and vast geographic scales. It is rare, however, to be able document this history across broad sweeps of time and space in a single species. Here, we report the results of a continental-scale phylogenomic analysis across the entire range of a widespread species. We analyzed sequences of 1,402 orthologous Ultraconserved Element (UCE) loci from 75 individuals to identify population genetic structure and historical demographic patterns across the continent-wide range of a cold-adapted ant, the winter ant, Prenolepis imparis. We recovered five well-supported, genetically isolated clades representing lineages that diverged from 8.2-2.2 million years ago. These include: 1) an early diverging lineage located in Florida, 2) a lineage that spans the southern United States, 3) populations that extend across the midwestern and northeastern United States, 4) populations from the western United States, and 5) populations in southwestern Arizona and Mexico. Population genetic analyses revealed little or no gene flow among these lineages, but patterns consistent with more recent gene flow among populations within lineages, and localized structure with migration in the western United States. High support for five major geographic lineages and lack of evidence of contemporary gene flow indicate in situ diversification across the species' range, producing relatively ancient lineages that persisted through subsequent climate change and glaciation during the Quaternary.
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Affiliation(s)
- Maria Adelena Tonione
- Department of Environmental Science, Policy, and Management, 130 Mulford Hall, #3114, University of California-, 94720-3114, Berkeley, CA, USA
| | - Ke Bi
- Museum of Vertebrate Zoology, University of California, Berkeley, 3101 Valley Life Sciences Building, Berkeley, CA 94720, USA.,Computational Genomics Resource Laboratory (CGRL), California Institute for Quantitative Biosciences (QB3), University of California, Berkeley, Berkeley, CA 94720, USA
| | - Robert R Dunn
- Department of Applied Ecology, North Carolina State University, David Clark Labs, Box 7617, Raleigh, NC 27695, USA
| | - Andrea Lucky
- Entomology and Nematology Department, University of Florida, 32608, Gainesville, FL, USA
| | - Daniel M Portik
- California Academy of Sciences, 94118, San Francisco, CA, USA
| | - Neil Durie Tsutsui
- Department of Environmental Science, Policy, and Management, 130 Mulford Hall, #3114, University of California-, 94720-3114, Berkeley, CA, USA
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4
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Bank S, Cumming RT, Li Y, Henze K, Le Tirant S, Bradler S. A tree of leaves: Phylogeny and historical biogeography of the leaf insects (Phasmatodea: Phylliidae). Commun Biol 2021; 4:932. [PMID: 34341467 PMCID: PMC8329230 DOI: 10.1038/s42003-021-02436-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 07/05/2021] [Indexed: 01/07/2023] Open
Abstract
The insect order Phasmatodea is known for large slender insects masquerading as twigs or bark. In contrast to these so-called stick insects, the subordinated clade of leaf insects (Phylliidae) are dorso-ventrally flattened and therefore resemble leaves in a unique way. Here we show that the origin of extant leaf insects lies in the Australasian/Pacific region with subsequent dispersal westwards to mainland Asia and colonisation of most Southeast Asian landmasses. We further hypothesise that the clade originated in the Early Eocene after the emergence of angiosperm-dominated rainforests. The genus Phyllium to which most of the ~100 described species pertain is recovered as paraphyletic and its three non-nominate subgenera are recovered as distinct, monophyletic groups and are consequently elevated to genus rank. This first phylogeny covering all major phylliid groups provides the basis for future studies on their taxonomy and a framework to unveil more of their cryptic and underestimated diversity.
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Affiliation(s)
- Sarah Bank
- Department for Animal Evolution and Biodiversity, Johann-Friedrich-Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany.
| | - Royce T Cumming
- Montréal Insectarium, Montréal, QC, Canada.
- Richard Gilder Graduate School, American Museum of Natural History, New York, NY, USA.
- The Graduate Center, City University, New York, NY, USA.
| | - Yunchang Li
- Department for Animal Evolution and Biodiversity, Johann-Friedrich-Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany
- Integrative Cancer Center & Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, P.R. China
| | - Katharina Henze
- Department for Animal Evolution and Biodiversity, Johann-Friedrich-Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany
| | | | - Sven Bradler
- Department for Animal Evolution and Biodiversity, Johann-Friedrich-Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany
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5
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Sánchez-Restrepo AF, Chifflet L, Confalonieri VA, Tsutsui ND, Pesquero MA, Calcaterra LA. A Species delimitation approach to uncover cryptic species in the South American fire ant decapitating flies (Diptera: Phoridae: Pseudacteon). PLoS One 2020; 15:e0236086. [PMID: 32678835 PMCID: PMC7367480 DOI: 10.1371/journal.pone.0236086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 06/29/2020] [Indexed: 11/18/2022] Open
Abstract
South American fire ant decapitating flies in the genus Pseudacteon (Diptera: Phoridae) are potential biocontrol agents of the invasive fire ants Solenopsis invicta and S. richteri in the United States and other regions of the world due to their high host specificity and the direct and indirect damage to their host ants. Despite their importance and the fact that several flies have already been released in the US, little is known about the genetic variability and phylogenetic relationships of Pseudacteon flies parasitizing South American fire ants in the Solenopsis saevissima species-group. A species delimitation analysis was conducted using a distance-based method (ABGD) and two tree-based methods (GMYC and mPTP) using COI sequences of 103 specimens belonging to 20 of the 22 Pseudacteon species known from southern South America. Additionally, phylogenetic relationships between the already described and new candidate species were inferred using mitochondrial (COI) and nuclear (wingless) sequences. The species delimitation analysis suggests that species richness in these flies has been previously underestimated, due to the existence of putative cryptic species within nominal Pseudacteon obtusus, P. pradei, P. tricuspis, P. cultellatus, and P. nudicornis. Geographic distribution and host fire ant species seem to support cryptic lineages, though additional morphological data are needed to corroborate these results. All phylogenetic analyses reveal that South American fire ant decapitating flies are grouped into two main clades, with Pseudacteon convexicauda sister and well differentiated relative to these clades. Neither host nor geographic association appeared to be related to the differentiation of these two main clades within South American fire ant decapitating flies. This work provides information that will allow testing whether the putative cryptic phorid fly species show differences in their effectiveness as biocontrol agents against the highly invasive imported fire ants.
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Affiliation(s)
- Andrés F. Sánchez-Restrepo
- Fundación para el Estudio de Especies Invasivas (FuEDEI), Hurlingham, Buenos Aires, Argentina
- Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Instituto de Ecología Genética y Evolución de Buenos Aires (IEGEBA; UBA-CONICET), Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- * E-mail:
| | - Lucila Chifflet
- Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Buenos Aires, Argentina
| | - Viviana Andrea Confalonieri
- Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Instituto de Ecología Genética y Evolución de Buenos Aires (IEGEBA; UBA-CONICET), Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Neil D. Tsutsui
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, California, United States of America
| | - Marcos Antônio Pesquero
- Programa de Pós-Graduação em Ambiente e Sociedade (PPGAS), Universidade Estadual de Goiás, Morrinhos, Brasil
| | - Luis Antonio Calcaterra
- Fundación para el Estudio de Especies Invasivas (FuEDEI), Hurlingham, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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6
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Liu C, Sarnat EM, Friedman NR, Hita Garcia F, Darwell C, Booher D, Kubota Y, Mikheyev AS, Economo EP. Colonize, radiate, decline: Unraveling the dynamics of island community assembly with Fijian trap-jaw ants. Evolution 2020; 74:1082-1097. [PMID: 32342495 PMCID: PMC7384189 DOI: 10.1111/evo.13983] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 04/09/2020] [Indexed: 01/17/2023]
Abstract
The study of island community assembly has been fertile ground for developing and testing theoretical ideas in ecology and evolution. The ecoevolutionary trajectory of lineages after colonization has been a particular interest, as this is a key component of understanding community assembly. In this system, existing ideas, such as the taxon cycle, posit that lineages pass through a regular sequence of ecoevolutionary changes after colonization, with lineages shifting toward reduced dispersal ability, increased ecological specialization, and declines in abundance. However, these predictions have historically been difficult to test. Here, we integrate phylogenomics, population genomics, and X-ray microtomography/3D morphometrics, to test hypotheses for whether the ecomorphological diversity of trap-jaw ants (Strumigenys) in the Fijian archipelago is assembled primarily through colonization or postcolonization radiation, and whether species show ecological shifts toward niche specialization, toward upland habitats, and decline in abundance after colonization. We infer that most Fijian endemic Strumigenys evolved in situ from a single colonization and have diversified to fill a large fraction of global morphospace occupied by the genus. Within this adaptive radiation, lineages trend to different degrees toward high elevation, reduced dispersal ability, and demographic decline, and we find no evidence of repeated colonization that displaces the initial radiation. Overall these results are only partially consistent with taxon cycle and associated ideas, while highlighting the potential role of priority effects in assembling island communities.
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Affiliation(s)
- Cong Liu
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
| | - Eli M. Sarnat
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
- Antwork Consulting LLCDavisCalifornia95616
| | - Nicholas R. Friedman
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
| | - Francisco Hita Garcia
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
| | - Clive Darwell
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
| | - Douglas Booher
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
- Field Museum of Natural HistoryChicagoIllinois60605
- Department of entomologyUniversity of IllinoisUrbanaIllinois61801
- Georgia Museum of Natural HistoryAthensGeorgia30602
| | - Yasuhiro Kubota
- Faculty of ScienceUniversity of the RyukyusNishiharaOkinawaJapan
| | - Alexander S. Mikheyev
- Ecology and Evolution UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
- Evolutionary Genomics Research GroupAustralian National UniversityCanberraAustralia
| | - Evan P. Economo
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
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7
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Shee ZQ, Frodin DG, Cámara-Leret R, Pokorny L. Reconstructing the Complex Evolutionary History of the Papuasian Schefflera Radiation Through Herbariomics. FRONTIERS IN PLANT SCIENCE 2020; 11:258. [PMID: 32265950 PMCID: PMC7099051 DOI: 10.3389/fpls.2020.00258] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 02/19/2020] [Indexed: 05/19/2023]
Abstract
With its large proportion of endemic taxa, complex geological past, and location at the confluence of the highly diverse Malesian and Australian floristic regions, Papuasia - the floristic region comprising the Bismarck Archipelago, New Guinea, and the Solomon Islands - represents an ideal natural experiment in plant biogeography. However, scattered knowledge of its flora and limited representation in herbaria have hindered our understanding of the drivers of its diversity. Focusing on the woody angiosperm genus Schefflera (Araliaceae), we ask whether its morphologically defined infrageneric groupings are monophyletic, when these lineages diverged, and where (within Papuasia or elsewhere) they diversified. To address these questions, we use a high-throughput sequencing approach (Hyb-Seq) which combines target capture (with an angiosperm-wide bait kit targeting 353 single-copy nuclear loci) and genome shotgun sequencing (which allows retrieval of regions in high-copy number, e.g., organellar DNA) of historical herbarium collections. To reconstruct the evolutionary history of the genus we reconstruct molecular phylogenies with Bayesian inference, maximum likelihood, and pseudo-coalescent approaches, and co-estimate divergence times and ancestral areas in a Bayesian framework. We find strong support for most infrageneric morphological groupings, as currently circumscribed, and we show the efficacy of the Angiosperms-353 probe kit in resolving both deep and shallow phylogenetic relationships. We infer a sequence of colonization to explain the present-day distribution of Schefflera in Papuasia: from the Sunda Shelf, Schefflera arrived to the Woodlark plate (present-day eastern New Guinea) in the late Oligocene (when most of New Guinea was submerged) and, subsequently (throughout the Miocene), it migrated westwards (to the Maoke and Bird's Head Plates and thereon) and further diversified, in agreement with previous reconstructions.
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Affiliation(s)
- Zhi Qiang Shee
- Royal Botanic Gardens, Kew, Richmond, United Kingdom
- Singapore Botanic Gardens, Singapore, Singapore
| | | | - Rodrigo Cámara-Leret
- Royal Botanic Gardens, Kew, Richmond, United Kingdom
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
- Bren School of Environmental Science and Management, University of California, Santa Barbara, Santa Barbara, CA, United States
| | - Lisa Pokorny
- Royal Botanic Gardens, Kew, Richmond, United Kingdom
- Centre for Plant Biotechnology and Genomics (CBGP UPM-INIA), Madrid, Spain
- Real Jardín Botánico (RJB-CSIC), Madrid, Spain
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8
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Darwell CT, Fischer G, Sarnat EM, Friedman NR, Liu C, Baiao G, Mikheyev AS, Economo EP. Genomic and phenomic analysis of island ant community assembly. Mol Ecol 2020; 29:1611-1627. [PMID: 31820838 DOI: 10.1111/mec.15326] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/27/2019] [Accepted: 12/06/2019] [Indexed: 01/25/2023]
Abstract
Island biodiversity has long fascinated biologists as it typically presents tractable systems for unpicking the eco-evolutionary processes driving community assembly. In general, two recurring themes are of central theoretical interest. First, immigration, diversification, and extinction typically depend on island geographical properties (e.g., area, isolation, and age). Second, predictable ecological and evolutionary trajectories readily occur after colonization, such as the evolution of adaptive trait syndromes, trends toward specialization, adaptive radiation, and eventual ecological decline. Hypotheses such as the taxon cycle draw on several of these themes to posit particular constraints on colonization and subsequent eco-evolutionary dynamics. However, it has been challenging to examine these integrated dynamics with traditional methods. Here, we combine phylogenomics, population genomics and phenomics, to unravel community assembly dynamics among Pheidole (Hymenoptera, Formicidae) ants in the isolated Fijian archipelago. We uphold basic island biogeographic predictions that isolated islands accumulate diversity primarily through in situ evolution rather than dispersal, and population genomic support for taxon cycle predictions that endemic species have decreased dispersal ability and demography relative to regionally widespread taxa. However, rather than trending toward island syndromes, ecomorphological diversification in Fiji was intense, filling much of the genus-level global morphospace. Furthermore, while most endemic species exhibit demographic decline and reduced dispersal, we show that the archipelago is not an evolutionary dead-end. Rather, several endemic species show signatures of population and range expansion, including a successful colonization to the Cook islands. These results shed light on the processes shaping island biotas and refine our understanding of island biogeographic theory.
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Affiliation(s)
- Clive T Darwell
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Georg Fischer
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Eli M Sarnat
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Nicholas R Friedman
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Cong Liu
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Guilherme Baiao
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Alexander S Mikheyev
- Ecology and Evolution Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan.,Research School of Biology, Evolutionary Genomics Research Group, Australian National University, Acton, ACT, Australia
| | - Evan P Economo
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
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9
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Cozzarolo CS, Balke M, Buerki S, Arrigo N, Pitteloud C, Gueuning M, Salamin N, Sartori M, Alvarez N. Biogeography and Ecological Diversification of a Mayfly Clade in New Guinea. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00233] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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10
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Matos-Maraví P, Matzke NJ, Larabee FJ, Clouse RM, Wheeler WC, Sorger DM, Suarez AV, Janda M. Taxon cycle predictions supported by model-based inference in Indo-Pacific trap-jaw ants (Hymenoptera: Formicidae: Odontomachus). Mol Ecol 2018; 27:4090-4107. [PMID: 30106242 DOI: 10.1111/mec.14835] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 08/01/2018] [Accepted: 08/07/2018] [Indexed: 01/05/2023]
Abstract
Nonequilibrium dynamics and non-neutral processes, such as trait-dependent dispersal, are often missing from quantitative island biogeography models despite their potential explanatory value. One of the most influential nonequilibrium models is the taxon cycle, but it has been difficult to test its validity as a general biogeographical framework. Here, we test predictions of the taxon cycle model using six expected phylogenetic patterns and a time-calibrated phylogeny of Indo-Pacific Odontomachus (Hymenoptera: Formicidae: Ponerinae), one of the ant genera that E.O. Wilson used when first proposing the hypothesis. We used model-based inference and a newly developed trait-dependent dispersal model to jointly estimate ancestral biogeography, ecology (habitat preferences for forest interiors, vs. "marginal" habitats, such as savannahs, shorelines, disturbed areas) and the linkage between ecology and dispersal rates. We found strong evidence that habitat shifts from forest interior to open and disturbed habitats increased macroevolutionary dispersal rate. In addition, lineages occupying open and disturbed habitats can give rise to both island endemics re-occupying only forest interiors and taxa that re-expand geographical ranges. The phylogenetic predictions outlined in this study can be used in future work to evaluate the relative weights of neutral (e.g., geographical distance and area) and non-neutral (e.g., trait-dependent dispersal) processes in historical biogeography and community ecology.
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Affiliation(s)
- Pável Matos-Maraví
- Institute of Entomology, Biology Centre CAS, Ceske Budejovice, Czech Republic.,Department of Zoology, Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic.,Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden.,Gothenburg Global Biodiversity Centre, Göteborg, Sweden
| | - Nicholas J Matzke
- Division of Ecology and Evolution, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia.,School of Biological Sciences, The University of Auckland, Auckland, New Zealand
| | - Fredrick J Larabee
- Department of Entomology, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia.,Department of Entomology and Department of Animal Biology, University of Illinois, Urbana-Champaign, Urbana, Illinois
| | - Ronald M Clouse
- Division of Invertebrate Zoology, American Museum of Natural History, New York City, New York
| | - Ward C Wheeler
- Division of Invertebrate Zoology, American Museum of Natural History, New York City, New York
| | - Daniela Magdalena Sorger
- Department of Applied Ecology, North Carolina State University, Raleigh, North Carolina.,W.M. Keck Center for Behavioral Biology, North Carolina State University, Raleigh, North Carolina.,Research & Collections, North Carolina Museum of Natural Sciences, Raleigh, North Carolina
| | - Andrew V Suarez
- Department of Entomology and Department of Animal Biology, University of Illinois, Urbana-Champaign, Urbana, Illinois
| | - Milan Janda
- Institute of Entomology, Biology Centre CAS, Ceske Budejovice, Czech Republic.,Laboratorio Nacional de Análisis y Síntesis Ecológica, ENES, UNAM, Morelia, Mexico
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