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10 results for “Gecarcoidea”
Nanopore data for Gecarcoidea natalis
<p>Unsheared DNA was processed using Nanopore LSK108 kit and sequenced on a used MIN-FLO106 flowcell for approximately 16 hours (overnight run). Basecalling used Albacore version 2.3.1.</p>
Data from: A single panmictic population of endemic red crabs, Gecarcoidea natalis, on Christmas Island with high levels of genetic diversity
The red crab, Gecarcoidea natalis, is endemic to Christmas Island in the Indian Ocean and largely responsible for shaping the unique ecosystem found throughout the island's rainforests. However, the introduction and establishment of supercolonies of the highly invasive yellow crazy ant, Anoplolepis gracilipes, has decimated red crab numbers over the last several decades. This poses a significant risk to the future conservation of G. natalis and consequently threatens the integrity of the unique island ecosystem. Here we undertook a population genetic analysis of G. natalis using a combination of 11 microsatellite markers and sequencing of the mitochondrial cytochrome oxidase subunit I gene from samples collected on Christmas Island as well as a single location from North Keeling Island (located approximately 900 km west of Christmas Island). The genetic results indicate that G. natalis is a single panmictic population on Christmas Island, with no spatial genetic structure or restricted gene flow apparent between sampled locations. Further, G. natalis from North Keeling Island are not genetically distinct and are recent immigrants from Christmas Island. The effective population size of G. natalis has likely remained large and stable on Christmas Island throughout its evolutionary history with relatively moderate to high levels of genetic diversity in microsatellite loci and mitochondrial haplotypes assessed in this study. For management purposes G. natalis can be considered a single panmictic population, which should simplify conservation efforts for the genetic management of this iconic island species.
FIG. 7 in First zoeal stages of Epigrapsus politus Heller, E. notatus (Heller) and Gecarcoidea lalandii H. Milne-Edwards, with remarks on zoeal morphology of the Gecarcinidae Macleay (Crustacea: Brachyura)
FIG. 7. Epigrapsus notatus (Heller, 1865), Zoea I. (A) Abdomen, dorsal view; (B) abdomen, lateral view. Scale bar 50.1 mm.
FIG. 6. Epigrapsus politus Heller, 1862, Zoea I in First zoeal stages of Epigrapsus politus Heller, E. notatus (Heller) and Gecarcoidea lalandii H. Milne-Edwards, with remarks on zoeal morphology of the Gecarcinidae Macleay (Crustacea: Brachyura)
FIG. 6. Epigrapsus politus Heller, 1862, Zoea I from Sulawesi, Indonesia. (A) Abdomen, dorsal view; (B) abdomen lateral view; (C) telson detail. Scale bars: (A, B) 0.1 mm, (C) 0.05 mm.
FIG. 5. Epigrapsus politus Heller, 1862, Zoea I in First zoeal stages of Epigrapsus politus Heller, E. notatus (Heller) and Gecarcoidea lalandii H. Milne-Edwards, with remarks on zoeal morphology of the Gecarcinidae Macleay (Crustacea: Brachyura)
FIG. 5. Epigrapsus politus Heller, 1862, Zoea I from Sulawesi, Indonesia. (A) Maxillule; (B) maxilla; (C) Žrst maxilliped; (D) second maxilliped. Scale bars: (A, B) 0.05 mm, (C, D) 0.1 mm.
FIG. 4. Epigrapsus politus Heller, 1862, Zoea I in First zoeal stages of Epigrapsus politus Heller, E. notatus (Heller) and Gecarcoidea lalandii H. Milne-Edwards, with remarks on zoeal morphology of the Gecarcinidae Macleay (Crustacea: Brachyura)
FIG. 4. Epigrapsus politus Heller, 1862, Zoea I from Sulawesi, Indonesia. (A) Cephalothorax, lateral view; (B) antennule; (C) antenna. Scale bars: (A) 0.1 mm, (B, C) 0.05 mm.
FIG. 2. Gecarcoidea lalandii H. Milne Edwards, 1837, Zoea I in First zoeal stages of Epigrapsus politus Heller, E. notatus (Heller) and Gecarcoidea lalandii H. Milne-Edwards, with remarks on zoeal morphology of the Gecarcinidae Macleay (Crustacea: Brachyura)
FIG. 2. Gecarcoidea lalandii H. Milne Edwards, 1837, Zoea I. (A) Maxillule; (B) maxilla; (C) Žrst maxilliped; (D) second maxilliped. Scale bars: (A, B) 0.05 mm, (C, D) 0.1 mm.
FIG. 1. Gecarcoidea lalandii H. Milne Edwards, 1837, Zoea I in First zoeal stages of Epigrapsus politus Heller, E. notatus (Heller) and Gecarcoidea lalandii H. Milne-Edwards, with remarks on zoeal morphology of the Gecarcinidae Macleay (Crustacea: Brachyura)
FIG. 1. Gecarcoidea lalandii H. Milne Edwards, 1837, Zoea I. (A) Cephalothorax, lateral view; (B) antennule; (C) antenna. Scale bars: (A) 0.1 mm, (B, C) 0.05 mm.
Data from: A single panmictic population of endemic red crabs, Gecarcoidea natalis, on Christmas Island with high levels of genetic diversity
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FIG. 3. Gecarcoidea lalandii H. Milne Edwards, 1837, Zoea I in First zoeal stages of Epigrapsus politus Heller, E. notatus (Heller) and Gecarcoidea lalandii H. Milne-Edwards, with remarks on zoeal morphology of the Gecarcinidae Macleay (Crustacea: Brachyura)
FIG. 3. Gecarcoidea lalandii H. Milne Edwards, 1837, Zoea I. (A) Abdomen, dorsal view; (B) abdomen lateral view; (C) telson detail. Scale bars: (A, B) 0.1 mm, (C) 0.05 mm.
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