Nearctic Region

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James P Pitts - One of the best experts on this subject based on the ideXlab platform.

  • molecular phylogeny and systematics of spider wasps hymenoptera pompilidae redefining subfamily boundaries and the origin of the family
    Zoological Journal of the Linnean Society, 2015
    Co-Authors: Cecilia Waichert, Juanita Rodriguez, Marius S Wasbauer, Carol D Von Dohlen, James P Pitts
    Abstract:

    Spider wasps (Hymenoptera: Pompilidae) constitute a monophyletic family supported by numerous morphological and behavioral traits. The subfamilial and tribal classifications, however, have a history of conflicting and confusing designations and nomenclature. Here, we reconstruct a molecular phylogeny of Pompilidae from Bayesian and maximum-likelihood analyses of four nuclear molecular markers (elongation factor– 1 α F2 copy, long–wavelength rhodopsin, RNA polymerase II, and 28S ribosomal RNA). A Bayesian divergence-time estimation was performed using four calibration points. An ancestral-area reconstruction was performed with a Bayesian binary Markov chain Monte Carlo method. New relationships are recovered, and new subfamilial delimitations are proposed and discussed based on the phylogeny. The origin of Pompilidae was ca. 43.3 Ma, probably in the Nearctic Region. Most of the extant subfamilies originated during the late Eocene through Oligocene, and their current distributions are the product of various dispersal events that occurred over the course of ~40 Ma. This is the first phylogenetic reconstruction of Pompilidae from molecular characters, with broad geographic and taxonomic sampling. The following subfamilies and relationships are recognized: Ctenocerinae + (Ceropalinae + Notocyphinae) + Pompilinae + Pepsinae. We revalidate Notocyphinae, which contains only Notocyphus, and define a new tribe in Pompilinae: Sericopompilini. Priochilini is reinstated. Sericopompilini contains Sericopompilus as the sole representative; Priochilini contains Priochilus and Balboana. Epipompilus and Chirodamus are now classified as Pepsinae.

  • historical biogeography of the widespread spider wasp tribe aporini hymenoptera pompilidae
    Journal of Biogeography, 2015
    Co-Authors: Juanita Rodriguez, James P Pitts, Carol D Von Dohlen
    Abstract:

    Aim Our aim was to determine the age and area of origin of the genera of the Aporini tribe of spider wasps by studying its historical biogeography. We also tested the fit of several hypotheses concerning the processes underlying the widespread distribution of this group. Location The Holarctic and Neotropics. Methods A phylogeny of 44 Aporini taxa was produced through Bayesian inference using four nuclear molecular markers (elongation factor-1 α F2 copy, long-wavelength rhodopsin, wingless and the D2–D3 Regions of the 28S ribosomal RNA). A lognormal relaxed molecular clock, calibrated with ages from three fossils, was used to estimate lineage divergence times. Biogeographical processes were studied using three methods: statistical dispersal–vicariance analysis (S-DIVA), dispersal–extinction cladogenesis (DEC) analysis and Bayesian binary Markov chain Monte Carlo (BBM) analysis. Results Our data suggest an origin for the most recent common ancestor of extant Aporini in the Nearctic Region in the early Miocene, 22.6 Ma, with a confidence interval (CI) of 17.40–28.83 Ma. All genera originated in the Miocene, four in the Nearctic Region. A constrained DEC analysis, where only dispersal to adjacent Regions was allowed, produced the highest likelihood and was mostly congruent with the BBM results. Main conclusions Dispersal from the Nearctic Region to the Palaearctic Region probably occurred across the Bering land bridge in the early Miocene, 15–18 Ma (CI = 11.14, 23.52), while three dispersal events to South America from Mesoamerica took place independently. These dispersals to South America occurred after 18 Ma through the Isthmus of Panama or across the Panama seaway. Three independent over-water dispersal events to the Antilles occurred from Mesoamerica and the Nearctic for two Aporini genera. The patterns inferred within the biogeographical history of Aporini agree with several scenarios proposed for other unrelated taxa.

Juanita Rodriguez - One of the best experts on this subject based on the ideXlab platform.

  • molecular phylogeny and systematics of spider wasps hymenoptera pompilidae redefining subfamily boundaries and the origin of the family
    Zoological Journal of the Linnean Society, 2015
    Co-Authors: Cecilia Waichert, Juanita Rodriguez, Marius S Wasbauer, Carol D Von Dohlen, James P Pitts
    Abstract:

    Spider wasps (Hymenoptera: Pompilidae) constitute a monophyletic family supported by numerous morphological and behavioral traits. The subfamilial and tribal classifications, however, have a history of conflicting and confusing designations and nomenclature. Here, we reconstruct a molecular phylogeny of Pompilidae from Bayesian and maximum-likelihood analyses of four nuclear molecular markers (elongation factor– 1 α F2 copy, long–wavelength rhodopsin, RNA polymerase II, and 28S ribosomal RNA). A Bayesian divergence-time estimation was performed using four calibration points. An ancestral-area reconstruction was performed with a Bayesian binary Markov chain Monte Carlo method. New relationships are recovered, and new subfamilial delimitations are proposed and discussed based on the phylogeny. The origin of Pompilidae was ca. 43.3 Ma, probably in the Nearctic Region. Most of the extant subfamilies originated during the late Eocene through Oligocene, and their current distributions are the product of various dispersal events that occurred over the course of ~40 Ma. This is the first phylogenetic reconstruction of Pompilidae from molecular characters, with broad geographic and taxonomic sampling. The following subfamilies and relationships are recognized: Ctenocerinae + (Ceropalinae + Notocyphinae) + Pompilinae + Pepsinae. We revalidate Notocyphinae, which contains only Notocyphus, and define a new tribe in Pompilinae: Sericopompilini. Priochilini is reinstated. Sericopompilini contains Sericopompilus as the sole representative; Priochilini contains Priochilus and Balboana. Epipompilus and Chirodamus are now classified as Pepsinae.

  • historical biogeography of the widespread spider wasp tribe aporini hymenoptera pompilidae
    Journal of Biogeography, 2015
    Co-Authors: Juanita Rodriguez, James P Pitts, Carol D Von Dohlen
    Abstract:

    Aim Our aim was to determine the age and area of origin of the genera of the Aporini tribe of spider wasps by studying its historical biogeography. We also tested the fit of several hypotheses concerning the processes underlying the widespread distribution of this group. Location The Holarctic and Neotropics. Methods A phylogeny of 44 Aporini taxa was produced through Bayesian inference using four nuclear molecular markers (elongation factor-1 α F2 copy, long-wavelength rhodopsin, wingless and the D2–D3 Regions of the 28S ribosomal RNA). A lognormal relaxed molecular clock, calibrated with ages from three fossils, was used to estimate lineage divergence times. Biogeographical processes were studied using three methods: statistical dispersal–vicariance analysis (S-DIVA), dispersal–extinction cladogenesis (DEC) analysis and Bayesian binary Markov chain Monte Carlo (BBM) analysis. Results Our data suggest an origin for the most recent common ancestor of extant Aporini in the Nearctic Region in the early Miocene, 22.6 Ma, with a confidence interval (CI) of 17.40–28.83 Ma. All genera originated in the Miocene, four in the Nearctic Region. A constrained DEC analysis, where only dispersal to adjacent Regions was allowed, produced the highest likelihood and was mostly congruent with the BBM results. Main conclusions Dispersal from the Nearctic Region to the Palaearctic Region probably occurred across the Bering land bridge in the early Miocene, 15–18 Ma (CI = 11.14, 23.52), while three dispersal events to South America from Mesoamerica took place independently. These dispersals to South America occurred after 18 Ma through the Isthmus of Panama or across the Panama seaway. Three independent over-water dispersal events to the Antilles occurred from Mesoamerica and the Nearctic for two Aporini genera. The patterns inferred within the biogeographical history of Aporini agree with several scenarios proposed for other unrelated taxa.

Cecilia Waichert - One of the best experts on this subject based on the ideXlab platform.

  • molecular phylogeny and systematics of spider wasps hymenoptera pompilidae redefining subfamily boundaries and the origin of the family
    Zoological Journal of the Linnean Society, 2015
    Co-Authors: Cecilia Waichert, Juanita Rodriguez, Marius S Wasbauer, Carol D Von Dohlen, James P Pitts
    Abstract:

    Spider wasps (Hymenoptera: Pompilidae) constitute a monophyletic family supported by numerous morphological and behavioral traits. The subfamilial and tribal classifications, however, have a history of conflicting and confusing designations and nomenclature. Here, we reconstruct a molecular phylogeny of Pompilidae from Bayesian and maximum-likelihood analyses of four nuclear molecular markers (elongation factor– 1 α F2 copy, long–wavelength rhodopsin, RNA polymerase II, and 28S ribosomal RNA). A Bayesian divergence-time estimation was performed using four calibration points. An ancestral-area reconstruction was performed with a Bayesian binary Markov chain Monte Carlo method. New relationships are recovered, and new subfamilial delimitations are proposed and discussed based on the phylogeny. The origin of Pompilidae was ca. 43.3 Ma, probably in the Nearctic Region. Most of the extant subfamilies originated during the late Eocene through Oligocene, and their current distributions are the product of various dispersal events that occurred over the course of ~40 Ma. This is the first phylogenetic reconstruction of Pompilidae from molecular characters, with broad geographic and taxonomic sampling. The following subfamilies and relationships are recognized: Ctenocerinae + (Ceropalinae + Notocyphinae) + Pompilinae + Pepsinae. We revalidate Notocyphinae, which contains only Notocyphus, and define a new tribe in Pompilinae: Sericopompilini. Priochilini is reinstated. Sericopompilini contains Sericopompilus as the sole representative; Priochilini contains Priochilus and Balboana. Epipompilus and Chirodamus are now classified as Pepsinae.

Marius S Wasbauer - One of the best experts on this subject based on the ideXlab platform.

  • molecular phylogeny and systematics of spider wasps hymenoptera pompilidae redefining subfamily boundaries and the origin of the family
    Zoological Journal of the Linnean Society, 2015
    Co-Authors: Cecilia Waichert, Juanita Rodriguez, Marius S Wasbauer, Carol D Von Dohlen, James P Pitts
    Abstract:

    Spider wasps (Hymenoptera: Pompilidae) constitute a monophyletic family supported by numerous morphological and behavioral traits. The subfamilial and tribal classifications, however, have a history of conflicting and confusing designations and nomenclature. Here, we reconstruct a molecular phylogeny of Pompilidae from Bayesian and maximum-likelihood analyses of four nuclear molecular markers (elongation factor– 1 α F2 copy, long–wavelength rhodopsin, RNA polymerase II, and 28S ribosomal RNA). A Bayesian divergence-time estimation was performed using four calibration points. An ancestral-area reconstruction was performed with a Bayesian binary Markov chain Monte Carlo method. New relationships are recovered, and new subfamilial delimitations are proposed and discussed based on the phylogeny. The origin of Pompilidae was ca. 43.3 Ma, probably in the Nearctic Region. Most of the extant subfamilies originated during the late Eocene through Oligocene, and their current distributions are the product of various dispersal events that occurred over the course of ~40 Ma. This is the first phylogenetic reconstruction of Pompilidae from molecular characters, with broad geographic and taxonomic sampling. The following subfamilies and relationships are recognized: Ctenocerinae + (Ceropalinae + Notocyphinae) + Pompilinae + Pepsinae. We revalidate Notocyphinae, which contains only Notocyphus, and define a new tribe in Pompilinae: Sericopompilini. Priochilini is reinstated. Sericopompilini contains Sericopompilus as the sole representative; Priochilini contains Priochilus and Balboana. Epipompilus and Chirodamus are now classified as Pepsinae.

Carol D Von Dohlen - One of the best experts on this subject based on the ideXlab platform.

  • molecular phylogeny and systematics of spider wasps hymenoptera pompilidae redefining subfamily boundaries and the origin of the family
    Zoological Journal of the Linnean Society, 2015
    Co-Authors: Cecilia Waichert, Juanita Rodriguez, Marius S Wasbauer, Carol D Von Dohlen, James P Pitts
    Abstract:

    Spider wasps (Hymenoptera: Pompilidae) constitute a monophyletic family supported by numerous morphological and behavioral traits. The subfamilial and tribal classifications, however, have a history of conflicting and confusing designations and nomenclature. Here, we reconstruct a molecular phylogeny of Pompilidae from Bayesian and maximum-likelihood analyses of four nuclear molecular markers (elongation factor– 1 α F2 copy, long–wavelength rhodopsin, RNA polymerase II, and 28S ribosomal RNA). A Bayesian divergence-time estimation was performed using four calibration points. An ancestral-area reconstruction was performed with a Bayesian binary Markov chain Monte Carlo method. New relationships are recovered, and new subfamilial delimitations are proposed and discussed based on the phylogeny. The origin of Pompilidae was ca. 43.3 Ma, probably in the Nearctic Region. Most of the extant subfamilies originated during the late Eocene through Oligocene, and their current distributions are the product of various dispersal events that occurred over the course of ~40 Ma. This is the first phylogenetic reconstruction of Pompilidae from molecular characters, with broad geographic and taxonomic sampling. The following subfamilies and relationships are recognized: Ctenocerinae + (Ceropalinae + Notocyphinae) + Pompilinae + Pepsinae. We revalidate Notocyphinae, which contains only Notocyphus, and define a new tribe in Pompilinae: Sericopompilini. Priochilini is reinstated. Sericopompilini contains Sericopompilus as the sole representative; Priochilini contains Priochilus and Balboana. Epipompilus and Chirodamus are now classified as Pepsinae.