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5 results for “Simple characters”
FIGURE. General characters in Myrcia. A: Asymmetrical anther thecae; B: Symmetrical anther thecae; C: Simple trichome; D: Dibrachiate trichome; E: 2-locular ovary; F: 3-locular ovary; G: Hypanthium persistent in the fruit, hollow; H: Hypanthium persistent in the fruit, beaked and filled by tissue; I. Homogeneous gland dots; J: Heterogeneous gland dots; K: Tertiary veins densely reticulated; L: Tertiary veins sparsely reticulated. (A: Oliveira 841; B: Moreira 404; C: Lindeman 1640; D: Hatschbach 13407; E: Bonaldi 502; F: Hatschbach 8646; G: Silva 4334; H: Brotto 2434; I: Hatschbach 61476; J: Carrião s.n. UPCB 28305; K: Kuniyoshi 4844; L: Michelon 1327). in Myrcia (Myrtaceae) in the state of Paraná, Brazil
FIGURE. General characters in Myrcia. A: Asymmetrical anther thecae; B: Symmetrical anther thecae; C: Simple trichome; D: Dibrachiate trichome; E: 2-locular ovary; F: 3-locular ovary; G: Hypanthium persistent in the fruit, hollow; H: Hypanthium persistent in the fruit, beaked and filled by tissue; I. Homogeneous gland dots; J: Heterogeneous gland dots; K: Tertiary veins densely reticulated; L: Tertiary veins sparsely reticulated. (A: Oliveira 841; B: Moreira 404; C: Lindeman 1640; D: Hatschbach 13407; E: Bonaldi 502; F: Hatschbach 8646; G: Silva 4334; H: Brotto 2434; I: Hatschbach 61476; J: Carrião s.n. UPCB 28305; K: Kuniyoshi 4844; L: Michelon 1327).
Data for: Correlated evolution of categorical characters under a simple model
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Data from: FiSSE: A simple non-parametric test for the effects of a binary character on lineage diversification rates
It is widely assumed that phenotypic traits can influence rates of speciation and extinction, and several statistical approaches have been used to test for correlations between character states and lineage diversification. Recent work suggests that model-based tests of state-dependent speciation and extinction are sensitive to model inadequacy and phylogenetic pseudoreplication. We describe a simple non-parametric statistical test ("FiSSE") to assess the effects of a binary character on lineage diversification rates. The method involves computing a test statistic that compares the distributions of branch lengths for lineages with and without a character state of interest. The value of the test statistic is compared to a null distribution generated by simulating character histories on the observed phylogeny. Our tests show that FiSSE can reliably infer trait-dependent speciation on phylogenies of several hundred tips. The method has low power to detect trait-dependent extinction but can infer state-dependent differences in speciation even when net diversification rates are constant. We assemble a range of macroevolutionary scenarios that are problematic for likelihood-based methods, and we find that FiSSE does not show similarly elevated false positive rates. We suggest that non-parametric statistical approaches, such as FiSSE, provide an important complement to formal process-based models for trait-dependent diversification.
Data from: FiSSE: A simple non-parametric test for the effects of a binary character on lineage diversification rates
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Development and Validation of a Simple Diagnostic Tool Predictive of the Aseptic Character of Joint Effusion
ClinicalTrials.gov study NCT03979937. IPD Sharing: NO. Countries: 1. Publications: 0.
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