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A process‐based model supports an association between dispersal and the prevalence of species traits in tropical reef fish assemblages ArchiMer
Donati, Giulia Francesca Azzurra; Parravicini, Valeriano; Leprieur, Fabien; Hagen, Oskar; Gaboriau, Theo; Heine, Christian; Kulbicki, Michel; Rolland, Jonathan; Salamin, Nicolas; Albouy, Camille; Pellissier, Loïc.
Habitat dynamics interacting with species dispersal abilities could generate gradients in species diversity and prevalence of species traits when the latter are associated with species dispersal potential. Using a process‐based model of diversification constrained by a dispersal parameter, we simulated the interplay between reef habitat dynamics during the past 140 million years and dispersal, shaping lineage diversification history and assemblage composition globally. The emerging patterns from the simulations were compared to current prevalence of species traits related to dispersal for 6315 tropical reef fish species. We found a significant spatial congruence between the prevalence of simulated low dispersal values and areas with a large proportion of...
Tipo: Text Palavras-chave: Biodiversity; Dispersal; Diversification; Mechanistic models; Reef fish; Traits.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00516/62750/67136.pdf
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Association Between Tongue Rolling and Tongue Folding in Osogbo, Southwestern Nigeria International Journal of Morphology
Igbeneghu,Christopher; Olukanni,Folake; Olisekodiaka,Japhet; Adesina,Adekunle.
This study was carried out among 144 individuals (18 years) from the Yoruba tribe of Southwestern Nigeria in order to determine the association between tongue rolling and folding. Participants were examined for the ability to roll and/or fold their tongues. The incidence of tongue rollers and folders were 59.7 % and 79.2 % respectively. Tongue rolling was higher in females than male but the difference was not significant (X2= 1.039, df = 1, p= 0.308). Tongue folding was significantly higher in females than males (X2= 4.211, df= 1, p= 0.04). Of the 144 participants, 76 (52.8 %) were tongue rollers and folders, 10 (6.9 %) were rollers and non-folders, 38 (26.4 %) were non-rollers and folders and 20 (13.9 %) were non-rollers and non-folders. These classes did...
Tipo: Journal article Palavras-chave: Association; Traits; Tongue roller; Tongue folders; Osogbo; Nigeria.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300008
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Functional differentiation between fish assemblages from forested and deforested streams Neotropical Ichthyology
Teresa,Fabrício Barreto; Casatti,Lilian; Cianciaruso,Marcus Vinicius.
We tested the hypothesis that streams in deforested areas shelter different fish communities to nearby forested areas, and that these disparities are due to environmental parameters that limit or benefit different species according to their functional traits. We compared the community composition of three south east Brazilian streams flanked by riparian forest with three nearby streams in deforested areas. The following functional traits were considered: diet, habitat use, water flow preference, size, and hypoxia tolerance. Differentiation between forested and deforested streams corresponded with the different contributions of three functional groups. Species reported in the literature to be hypoxia tolerant, and exhibiting a variable combination of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Community ecology; Deforestation; Functional diversity; Traits.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200361
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Tongue Rolling and Tongue Folding Traits in an African Population International Journal of Morphology
Odokuma,Emmanuel Igho; Eghworo,Ovocity; Avwioro,Godwin; Agbedia,Ufuoma.
Genetic variations that occur in humans are usually as a result of a plethora of factors which are of enormous valué from physical anthropological window especially in studying population variation and human diversity. This study was conducted amongst unrelated volunteer students of Delta State University, Nigeria who were all of Urhobo tribe (71 males) and (72) females aged between 18 years and over to determine their ability to roll or fold the tongues. The frequency of folders (120) and rollers (87) were more common than non-folders (23) and non-rollers (56).The incidence of tongue rolling was higher in females than in their male counterparts. These differences did not however show any statistical significance, p > 0.01. The frequency of R-F was...
Tipo: Journal article Palavras-chave: Traits; Nigerian; Tongue roller; Tongue folder; Gender.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300004
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Volcanism and arthropods: a review Ecología austral
Elizalde,Luciana.
Volcanic eruptions are natural disturbances that impose multiple changes in ecosystems. Arthropods are among the most diverse organisms on the planet and play key functional roles in all ecosystems. Existing information on the effects of volcanic disturbances on arthropods is scattered. The aim of this review is to fnd generalities in the responses of arthropods from terrestrial and aquatic environments to volcanism. Mainly (1) what effects do volcanic disturbances have on arthropods?, (2) what characteristics make certain species more or less susceptible to volcanic disturbances?, and (3) how do arthropod communities reassemble after a volcanic disturbance? Terrestrial and aquatic arthropods show similar responses to volcanic disturbances. Volcanism can...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Disturbance; Volcanic eruption; Ash; Puyehue-Cordón Caulle; Mount St. Helens; Insect; Arachnid; Crustacean; Traits; Density-independent mortality.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2014000100002
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