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799 results for “Stick insects”
Figs 1–6 in Stick insects of the genus Interphasma Chen et He, 2008 (Phasmida: Phasmatidae) from China
Figs 1–6. Interphasma huayingshanense sp. n.: 1, 3 – female (holotype); 2, 5 – male
Fig. 4 in The stick insect genus Medauroidea Zompro, 2000: Taxonomic note and extension to Laos and Cambodia with one new species, M. romantica sp. nov. (Phasmida: Phasmatidae: Clitumninae)
Fig. 4. Medauroidea romantica sp. nov., cephalic and prothoracic armature. A, ♂. B, ♀.
Fig. 10 in The new stick insect genus Medauromorpha gen. nov. with one new species from Vietnam and notes on Medauroidea Zompro, 2000 (Phasmida: Phasmatidae: Clitumninae)
Fig. 10. Medauromorpha baviensis sp. nov., in nature, Ba Vi N.P., 27.VI.2015. A–B, ♀. — C–D, ♂.
Fig. 9 in Two new stick insect genera from Vietnam, Nuichua gen. nov. and Pterohirasea gen. nov. with two new species (Phasmida: Diapheromeridae: Necrosciinae)
Fig. 9. Pterohirasea nigrolineata sp. nov., prosternal sensory organs.
Fig. 8 in Two new stick insect genera from Vietnam, Nuichua gen. nov. and Pterohirasea gen. nov. with two new species (Phasmida: Diapheromeridae: Necrosciinae)
Fig. 8. Nuichua rabaeyae sp. nov. and Pterohirasea nigrolineata sp. nov., distribution map.
Fig. 14 in Review of the Oriental stick insect genus Trachythorax Redtenbacher, 1908 with two new species from Vietnam and comments on egg parasitism and morphological counteradaptations (Phasmida, Lonchodidae, Necrosciinae)
Fig. 14. Trachythorax auranticollis sp. nov., maiting pair, in Dong Nai Biosphere Reserve.
Fig. 9 in Review of the Oriental stick insect genus Trachythorax Redtenbacher, 1908 with two new species from Vietnam and comments on egg parasitism and morphological counteradaptations (Phasmida, Lonchodidae, Necrosciinae)
Fig. 9. Trachythorax spp. distribution map.
Fig. 8 in Review of the Oriental stick insect genus Trachythorax Redtenbacher, 1908 with two new species from Vietnam and comments on egg parasitism and morphological counteradaptations (Phasmida, Lonchodidae, Necrosciinae)
Fig. 8. Trachythorax albomaculatus sp. nov., habitat in Kon Chu Rang Nature Reserve.
Divergence time and environmental similarity predict the strength of morphological convergence in stick and leaf insects
<p>This uploads contains the datasets, phylogenetic tree and associated R code used to generate the results reported in the article: "Divergence time and environmental similarity predict the strength of morphological convergence in stick and leaf insects" published in Proceedings of the National Academy of Sciences USA (2024).<br>A detailed explanation of datasetS1 can be found in the supplementary data of the article. </p>
Fig. 19 in Stick insects from Vietnam: The new genus Mycovartes gen. nov., with two new species and two new species of Neooxyartes Ho, 2018 (Phasmida: Lonchodidae: Necrosciinae)
Fig. 19. Neooxyartes Ho, 2018, distribution map.
Fig. 1 in Stick insects from Vietnam: The new genus Mycovartes gen. nov., with two new species and two new species of Neooxyartes Ho, 2018 (Phasmida: Lonchodidae: Necrosciinae)
Fig. 1. Mycovartes gen. nov., distribution map.
Data from: Transitions between phases of genomic differentiation during stick-insect speciation
Speciation can involve a transition from a few genetic loci that are resistant to gene flow to genome-wide differentiation. However, only limited data exist concerning this transition and the factors promoting it. Here, we study phases of speciation using data from >100 populations of 11 species of Timema stick insects. Consistent with early phases of genic speciation, adaptive colour-pattern loci reside in localized genetic regions of accentuated differentiation between populations experiencing gene flow. Transitions to genome-wide differentiation are also observed with gene flow, in association with differentiation in polygenic chemical traits affecting mate choice. Thus, intermediate phases of speciation are associated with genome-wide differentiation and mate choice, but not growth of a few genomic islands. We also find a gap in genomic differentiation between sympatric taxa that still exchange genes and those that do not, highlighting the association between differentiation and complete reproductive isolation. Our results suggest that substantial progress towards speciation may involve the alignment of multi-faceted aspects of differentiation.
Data for: Testing for fitness epistasis in a transplant experiment identifies a candidate adaptive locus in Timema stick insects
<p>Identifying the genetic basis of adaptation is a central goal of evolutionary biology. However, identifying genes and mutations affecting fitness remains challenging because a large number of traits and variants can influence fitness. Selected phenotypes can also be difficult to know <em>a priori</em>, complicating top-down genetic approaches for trait mapping that involve crosses or genome-wide association studies. In such cases, experimental genetic approaches, where one maps fitness directly and attempts to infer the traits involved afterward, can be valuable. Here, we re-analyse data from a transplant experiment involving <em>Timema</em> stick insects, where five physically clustered SNPs associated with cryptic body colouration were shown to interact to affect survival. Our analysis covers a larger genomic region than past work and revealed a locus previously not identified as associated with survival. This locus resides near a gene, <em>Punch</em> (<em>Pu</em>), involved in pteridine pigments production, implying that it could be associated with an unmeasured colouration trait. However, by combining previous and newly obtained phenotypic data, we show that this trait is not eye or body colouration. We discuss the implications of our results for the discovery of traits, genes, and mutations associated with fitness in other systems, as well as for supergene evolution.</p>
Climatic similarity and genomic background shape the extent of parallel adaptation in Timema stick insects
<p>Evolution can repeat itself, resulting in parallel adaptations in independent lineages occupying similar environments. Moreover, parallel evolution sometimes, but not always, uses the same genes. Two main hypotheses have been put forth to explain the probability and extent of parallel evolution. First, parallel evolution is more likely when shared ecologies result in similar patterns of natural selection in different taxa. Second, parallelism is more likely when genomes are similar, because of shared standing variation and similar mutational effects in closely related genomes. Here we combine ecological, genomic, experimental, and phenotypic data with Bayesian modeling and randomization tests to quantify the degree of parallelism and its relationship with ecology and genetics. Our results show that the extent to which genomic regions associated with climate are parallel among species of <em>Timema</em> stick insects is shaped collectively by shared ecology and genomic background. Specifically, the extent of genomic parallelism decays with divergence in climatic conditions (i.e., habitat or ecological similarity) and genomic similarity. Moreover, we find that climate-associated loci are likely subject to selection in a field experiment, overlap with genetic regions associated with cuticular hydrocarbon traits, and are not strongly shaped by introgression between species. Our findings shed light on when evolution is most expected to repeat itself.</p>
Data from: Dynamics of reproductive isolation in stick insects at the transition between populations and species
<p>Speciation is often viewed as a continuum along which populations diverge until they become reproductively-isolated species. However, such divergence may be heterogeneous, proceeding in `fits and bursts', rather than being uniform and gradual. We show in <em>Timema</em> stick insects that one form of reproductive isolation indeed evolves non-uniformly across this continuum, whereas another does not. Specifically, we use thousands of host-preference and mating trials to study habitat and sexual isolation among 42 pairs of taxa spanning a range of genomic differentiation and divergence time. We find that the evolution of habitat isolation is uncoupled from genomic differentiation within species, but accumulates linearly with it between species. In contrast, sexual isolation accumulates linearly across the speciation continuum. The results show different evolutionary dynamics for different components of reproductive isolation, indicate sudden transitions between phases of speciation, and highlight a special relevance for species status in the evolution of reproductive isolation.</p>
Adaptive zones shape the magnitude of premating reproductive isolation in Timema stick insects
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Climatic similarity and genomic background shape the extent of parallel adaptation in Timema stick insects
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Sexually but not parthenogenetically produced females benefit from mating in a stick insect
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Data for: Testing for fitness epistasis in a transplant experiment identifies a candidate adaptive locus in Timema stick insects
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Ancient insect vision tuned for flight amongst rocks and plants underpins natural flower colour diversity - rock, mineral, stick, bark, leaf, bird- and insect-flower petal reflectance spectra
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Allen Brain Atlas
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