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194 results for “island evolution”
Figure 8 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 8 - Brachylicoa lui sp. n. holotype female with oostegites and genital cone. A pereopod-3, lateral view; B basis of pereopod-3, inner view; C propodus and dactylus of pereopod-3, inner view; D pereopod-4, lateral view; E propodus and dactylus of pereopod-4, inner view; F enlargement of setulate spiniform, lanceolate setae. Scale bar = 0.5 mm for A−E.
Figure 7 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 7 - Brachylicoa lui sp. n. holotype female with oostegites and genital cone. A pereopod-1, lateral view; B basis of pereopod-1, inner view; C propodus and dactylus of pereopod-1, inner view; D pereopod-2, lateral view; E basis of pereopod-2, inner view; F propodus and dactylus of pereopod-2, inner view. Scale bar = 0.5 mm.
Figure 5 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 5 - Brachylicoa lui sp. n. holotype female with oostegites and genital cone. A maxillule; B enlargement of penta-furcate spiniform setae; C maxilla; D−F, enlargement of inner pinnate-plumose spiniform setae; G enlargement of bipinnate-outer setulose spiniform seta; H enlargement of trifurcate-plumose spiniform seta; I enlargement of outer pectinate-outer setulose spiniform seta; J enlargement of bipinnate spiniform setae K enlargement of bifid basally-swollen seta; L maxilliped; M enlargement of distal outer margin of maxilliped palp-1; N enlargement of inner-setulate spiniform seta; O endite, P apically-bidentate spiniform setae; Q enlargement of leaf-shaped bifid spiniform seta; R epignath. Scale bars = 0.1 mm for A, C, L, O, R.
Figure 4 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 4 - Brachylicoa lui sp. n. holotype female with oostegites and genital cone. A and H right mandible; B enlargement of tip of right incisor process; C enlargement of right lacinia mobilis; D right mandible palp; E enlargement of pectinate seta; F and I left mandible; G enlargement of left lacinia mobilis; J labium. Scale bars = 0.1 mm for A, D−E, G−I.
Figure 3 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 3 - Brachylicoa lui sp. n. holotype female with oostegites and genital cone. A antennule; B antenna; C labrum. Scale bars = 0.5 mm for A−B and 0.1 mm for C.
Figure 2 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 2 - Brachylicoa lui sp. n. holotype female with oostegites and genital cone. A dorsal view; B enlargement of rostrum; C anteroventral fold of carapace; D lateral view of pleonites; E enlargement of lateral view of pleonite-5 tip. Scale bars = 1.0 mm for A and 0.5 for B−C.
Figure 6 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 6 - Brachylicoa lui sp. n. holotype female with oostegites and genital cone. A cheliped, lateral view; B cheliped, inner view. Scale bar = 0.5 mm.
Figure 14 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 14 - Tip of rostrum: A Brachylicoa estasiatica; B B. indonesiana; C B. muelleri; D B. lui sp. n. Pereopod-6: E B. indonesiana; F B. muelleri; G B. lui sp. n. Pleopod: H B. indonesiana; I B. muelleri; J B. lui sp. n. Mandible palp: K B. muelleri; L B. lui sp. n. Figures modified from [Băcescu 1978 (A); Guţu 2007 (B, E, H); Guţu 2006 (C, F, I, K); and this study (D, G, J, L]; not to scale.
Figure 11 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 11 - Digital images of Brachylicoa lui sp. n. paratype female with oostegites and genital cone (dissected). A−F pereopod 1−6. Arrows shown the presence of glands. Scale bar = 0.5 mm.
Figure 13 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 13 - Digital images of Brachylicoa lui sp. n. A holotype (female with oostegites and genital cone), lateral view of habitus, length 8.13 mm; B paratype (female with marsupium and genital cone) lateral view of habitus, length. Scale bar = 2.0 mm.
Figure 10 from: Morales Núñez AG, Ulrich S, Heard RW (2017) Brachylicoa lui, a new species of Tanaidacea (Crustacea: Peracarida: Parapseudidae), from the Hawaiian Islands, with a taxonomic key. Zoosystematics and Evolution 93(2): 1-23. https://doi.org/10.3897/zse.93.13824
Figure 10 - Brachylicoa lui sp. n. holotype female with oostegites and genital cone. A pleopod; B enlargement of plumose seta with whiplike serrate tip; C uropod. Scale bars = 0.5 mm for A, C.
Figure 3 from: Sata N (2018) Two new skink-endoparasitic species of Meteterakis (Nematoda, Heterakidae, Meteterakinae) from East Asian islands. Zoosystematics and Evolution 94(2): 339-348. https://doi.org/10.3897/zse.94.27091
Figure 3 Meteterakis occidentalis sp. n., holotype (KUZ Z2000: A, B, F, G), paratypes (KUZ Z2005: D, E, I; KUZ Z2010: H; KUZ Z2013: C). A anterior region, lateral view; B pharynx, lateral view; C anterior end, apical view; D vulvar area of female, lateral view; E caudal region of female, lateral view; F caudal region of male, lateral view; G caudal papillae arrangement of male, lateral view; H spicule; I egg.
Figure 2 from: Sata N (2018) Two new skink-endoparasitic species of Meteterakis (Nematoda, Heterakidae, Meteterakinae) from East Asian islands. Zoosystematics and Evolution 94(2): 339-348. https://doi.org/10.3897/zse.94.27091
Figure 2 Meteterakis formosensis sp. n., holotype (KUZ Z1779: A, B, F, G), paratypes (KUZ Z1781: D, J; KUZ Z1782: E; KUZ Z1994: H, I; KUZ Z1995: C). A anterior region, lateral view; B pharynx, lateral view; C anterior end, apical view; D vulvar area of female, lateral view; E caudal region of female, lateral view; F caudal region of male, lateral view; G caudal papillae arrangement of male, lateral view; H spicule; I accessory of spicule; J egg.
Figure 1 from: Sata N (2018) Two new skink-endoparasitic species of Meteterakis (Nematoda, Heterakidae, Meteterakinae) from East Asian islands. Zoosystematics and Evolution 94(2): 339-348. https://doi.org/10.3897/zse.94.27091
Figure 1 Map showing the known populations of Meteterakis Karve, 1930 inhabiting the Japanese Archipelago, the Ryukyu Archipelago and Taiwan: Meteterakis occidentalis sp. n. (sites 1–4), M. amamiensis Hasegawa, 1990 (sites 5–9; Hasegawa 1990, Sata 2015, 2018), and Meteterakis formosensis sp. n. (site 10). Solid arrows indicate the new species, and open arrows indicate M. amamiensis. Detailed site information can be found in Table 1.
Data from: Rates of karyotypic evolution in Estrildid finches differ between island and continental clades
Reasons why chromosomal rearrangements spread to fixation and frequently distinguish related taxa remain poorly understood. We used cytological descriptions of karyotype to identify large pericentric inversions between species of Estrildid finches (family Estrildidae) and a time-dated phylogeny to assess the genomic, geographic, and phylogenetic context of karyotype evolution in this group. Inversions between finch species fixed at an average rate of one every 2.26 My. Inversions were twice as likely to fix on the sex chromosomes compared to the autosomes. A high repeat density on the sex chromosomes may increase mutation rates, but other explanations via mutagenic input are not supported, as the number of inversions on a chromosome does not correlate with its length or map size. Inversions have fixed 3.3× faster in three continental clades than in two island chain clades, and fixation rate correlates with both range size and the number of sympatric species pairs. These results point to adaptation as the dominant mechanism driving fixation and suggest a role for gene flow in karyotype divergence. A review shows that the rapid karyotype evolution observed in the Estrildid finches appears to be more general across birds, and by implication other understudied taxa.
Figure 3 in Parallel evolution in molar outline of murine rodents: the case of the extinct Malpaisomys insularis (Eastern Canary Islands)
Figure 3. Morphological differentiation of the dental outline among murine rodents. A, upper molars. Group means on CA1 and 2. Dotted lines show the fossil lineages leading from Progonomys hispanicus to Occitanomys and to Stephanomys, and from Pr. cathalai to Paraethomys. Outlines correspond to some group means. B, upper molars, CA1 and 3. C, lower molars, CA1 and 2. For locality and sample abbreviations see Table 1.
Figure 3 from: Ober K, Matthews B, Ferrieri A, Kuhn S (2011) The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini). ZooKeys 147: 183-197. https://doi.org/10.3897/zookeys.147.2024
Figure 3 - Phylogeny of Scaphinotus petersi dated using a Bayesian relaxed molecular clock in BEAST. Outgroups are removed to show greater detail. Specimen numbers are removed, but the mountain range from which they were collected is indicated. Branches are proportional to time in thousands of years. Shading indicates the two most recent glacial maxima. 95% confidence intervals for the ages of major clades in the tree are indicated with blue bars. The capital letters indicate population fragmentation between mountain ranges (see Table 3).
Figure 1 from: Ober K, Matthews B, Ferrieri A, Kuhn S (2011) The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini). ZooKeys 147: 183-197. https://doi.org/10.3897/zookeys.147.2024
Figure 1 - Study location A Scaphinotus petersi distribution is circled area. Habitat above 1830m is shown in black and between 1500 and 1830m is shown in grey B Shaded relief map of study area. Black dots denote sampling localities of Scaphinotus petersi used in this study (see Table 1) abbreviated as follows: P, Pinal Mountains; SC, Santa Catalina Mountains; PN, Pinaleño Mountains; and H, Huachuca Mountains. Figure courtesy of Sara Mitchell.
Figure 2 from: Ober K, Matthews B, Ferrieri A, Kuhn S (2011) The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini). ZooKeys 147: 183-197. https://doi.org/10.3897/zookeys.147.2024
Figure 2 - Maximum likelihood tree of Scaphinotus petersi populations from combined COI and ND1 data. Outgroups are removed to show greater detail. Specimen numbers are removed, but the mountain range from which they were collected is indicated. Support for branches is indicated by Bayesian Posterior Probability/Maximum Likelihood bootstrap values. Scale bar units are substitutions per site.
Figure 11 from: Csiki-Sava Z, Buffetaut E, Ősi A, Pereda-Suberbiola X, Brusatte SL (2015) Island life in the Cretaceous - faunal composition, biogeography, evolution, and extinction of land-living vertebrates on the Late Cretaceous European archipelago. ZooKeys 469: 1-161. https://doi.org/10.3897/zookeys.469.8439
Figure 11 - Continental paleogeography of the Late Cretaceous, highlighting the position of the European paleobioprovince (yellow dotted line). A Global paleogeography during the relative sea-level highstand period of the Turonian, showing maximum geographical fragmentation of Europe B Global paleogeography during the relative sea-level lowstand period of the latest Maastrichtian, showing significant extension of emergent areas. Abbreviations: AFR Africa; ANT Antarctica; APP Appalachia; AUS Australia; CAS Central (or Middle) Asia; EAS Eastern Asia; EUR Europe; IN India; IN-M Indo-Malagasy Landmass; LAR Laramidia; MA Madagascar; NAM North America; SAM South America; WAF western Africa. Base maps courtesy of R. Blakey.
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International Brain Laboratory public data
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OpenNeuro
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