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60 results for “allopatric speciation”
FIGURE 13 in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 13 Male and female thoracopods VIII of the four genera described for WA. (A, B) male ThVIII of Pilbaranella ethelensis; (C, D) male ThVIII of Fortescuenella serenitatis; (E, F) male ThVIII of Anguillanella callawaensis; (G, H) male ThVIII of Muccanella cundalinensis; (I) female ThVIII of Pilbaranella ethelensis; (J) female ThVIII of Fortescuenella serenitatis; (K) female ThVIII of Anguillanella callawaensis; (L) female ThVIII of Muccanella cundalinensis. Scale bar in mm
FIGURE 10 in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 10 Muccanella cundalinensis gen. et sp. nov., male holotype (A, B, D, F, H, I); female allotype (E, G); male paratype (C). (A) Antennula (dorsal view); (B) antenna (dorsal view); (C) Paragnath male WAMC57343; (D) labrum; (E) labrum female WAMC57341; (F) palp and mandible male holotype; (G) palp and mandible female allotype; (H) maxillule; (I) maxilla. Scale bar in mm.
FIGURE 11 in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 11 Muccanella cundalinensis gen. et sp. nov., male holotype. (A) Thoracopod I; (B) thoracopod II; (C) thoracopod III; (D) thoracopod IV; (E) thoracopod V; (F) Thoracopod VI; (G) thoracopod VII. Scale bar in mm.
FIGURE 7 in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 7 Anguillanella callawaensis gen. et sp. nov., male holotype. (A) Thoracopod I; (B) thoracopod II; (C) thoracopod III; (D) thoracopod IV; (E) thoracopod V; (F) Thoracopod VI; (G) thoracopod VII. Scale bar in mm.
FIGURE 6 in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 6 Anguillanella callawaensis gen. et sp. nov., male holotype (A–E, G); female allotype (F, H, K, L); male paratype (I, J). (A) Antennula (dorsal view); (B) antenna (dorsal view); (C) max Maxilla; (D) maxillula; (E) mandibular palp male holotype; (F) palp female allotype; (G) mandible male holotype; (H) mandi- ble female allotype; (I) paragnath male WAMC57657 (J) labrum male WAMC57423 (ventral view); (K) Paragnath female allotype; (L) labrum female allotype (dorsal view Downloaded). Scalefrom bar in Brill. mm com. 08/31/2023 03:13:03AM via free access
FIGURE 8 in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 8 Anguillanella callawaensis gen. et sp. nov., (A–D, F, G, H) male holotype. (A, B) thoracopod VIII (posterior view); (C, D) thoracopod VIII (frontal view); (E) thoracopod VIII female allotype (frontal view); (F) first pleopod; (G) furcal rami and dorsal seta (dorsal view); (H) uropod (latero-internal view). Scale bar in mm. Abbreviations: O. lb, outer lobe; Bsp, basipod; Endp, endopod; Exp, exopod; P.pr, posterior projection; Fr.pr, frontal projection.
FIGURE 4 Maximum Clade Credibility Tree inferred using a concatenate COI, 16S, 28S and 18S alignment using BEAST. Node bars are 95 in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 4 Maximum Clade Credibility Tree inferred using a concatenate COI, 16S, 28S and 18S alignment using BEAST. Node bars are 95% Higher Posterior Density, scale bar is in million years ago (Ma), starting from present 0. Numbers above bars = node age; numbers below bars (bold) = posterior probability of the node.
FIGURE 3 Bayesian consensus tree representing the known Bathynellidae taxa constructed using COI, 16S, 28S, ITS2 and 18S in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 3 Bayesian consensus tree representing the known Bathynellidae taxa constructed using COI, 16S, 28S, ITS2 and 18S alignments and model partitioning implemented in MrBayes. Numbers on branches represent Bayesian posterior probabilities followed by maximum likelihood bootstrap percentage. Bathynellinae and Gallobathynellinae clades are collapsed for easier interpretation.
FIGURE 5 in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 5 Bathynellidae species distribution in the Goldsworthy area (Callawa, Cundaline, Yarrie ridges).
FIGURE 2 Bayesian consensus single gene trees for COI, 16S, 28S and ITS2 in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 2 Bayesian consensus single gene trees for COI, 16S, 28S and ITS2. Numbers on branches represent Bayesian posterior probabilities followed by maximum likelihood bootstrap percentage. ABGD and PTP results are reported next to the trees. ABGD method: major partitions are showed; PTP: partitions with the highest support for each group are represented.
Integrative species delimitation reveals fine-scale allopatric speciation in a good-flying insect: A case study on Cylindera pseudocylindriformis complex (Coleoptera, Cicindelidae)
<p>Alpha taxonomy is fundamental for many biological fields. Delineation of species boundary, however, can be challenging in a species complex, where different species share a similar morphology and diagnostic characters may not be available. In this context, integrative approaches that incorporate molecular and morphological data sets and account for speciation history can be helpful to alpha taxonomy. Different approaches to species delimitation based on different assumptions are complementary, and by integrating the results from multiple approaches we can generate a more reliable and objective taxonomic decision. In this study, we applied three molecular approaches to species delimitation and inferred the demographic history based on an isolation with migration model to test a morphologically based taxonomic hypothesis for the <em>Cylindera</em> <em>pseudocylindriformis</em> complex. We discuss the association between genetic divergence and microhabitat specialization, and we further corroborated that <em>C</em>. <em>subtilis</em> sp. nov. is a valid new species by integrating the results from model-based species delimitation and the genealogical divergence index. We argue that genetic endemism can form at a small geographic scale, even in a winged insect-like tiger beetle. Our results also indicated that there may still be undocumented species diversity of Taiwanese <em>Cylindera</em> remaining to be discovered.</p>
Erosional exhumation of carbonate rock facilitates dispersal-mediated allopatric speciation in freshwater fishes
<p>A fundamental goal of evolutionary biology is to understand the mechanisms that generate and maintain biodiversity. Discovery and delimitation of species represent essential prerequisites for such investigations. We investigate a freshwater fish species complex comprising <em>Etheostoma bellator</em> and the endangered <em>E. chermocki</em> which is endemic to the Black Warrior River system in Alabama, USA, a global hotspot of temperate freshwater biodiversity. Phylogenomic analyses delimit five geographically disjunct species masquerading as <em>E. bellator</em>. Three of these new species exhibit microendemic distributions comparable to that of <em>E. chermocki</em> raising the possibility that they also require protection. The species of the complex are found in streams flowing over carbonate rock and they are separated by waterways flowing over siliciclastic rock, a geographic pattern dictated by the underlying stratigraphy and structural geology. Over time, rivers have eroded downward through layers of siliciclastic rocks in the basin, gradually exposing underlying carbonate rock, the substrate of suitable habitat today. Our results suggest that episodic dispersal to patches of suitable habitat set the stage for allopatric speciation in the species complex. Our study suggests that the presence of heterogeneous rock can facilitate dispersal-mediated allopatric speciation in freshwater organisms in the absence of external tectonic or climatic perturbations.</p>
FIGURE 9 in The role of allopatric speciation and ancient origins of Bathynellidae (Crustacea) in the Pilbara (Western Australia): two new genera from the De Grey River catchment
FIGURE 9 Anguillanella callawaensis furca variability (WAMC57370 photo).
Allopatric speciation and interspecific gene flow driven by niche conservatism of Diploderma tree lizards in Taiwan
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Scripts and detailed command lines supporting: Ecological selection as drivers during early speciation: Insights from two allopatric cypress species in the Himalaya
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Data for: The Sela macaque (Macaca selai) is a distinct phylogenetic species that evolved from the Arunachal macaque following allopatric speciation
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Erosional exhumation of carbonate rock facilitates dispersal-mediated allopatric speciation in freshwater fishes
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Data from: Evidence for non-allopatric speciation among closely related sympatric Heliotropium species in the Atacama Desert
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Integrative species delimitation reveals fine-scale allopatric speciation in a good-flying insect: A case study on Cylindera pseudocylindriformis complex (Coleoptera, Cicindelidae)
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FIGURE 4 in A molecular phylogenetic study on South Korean Tettigonia species (Orthoptera: Tettigoniidae) using five genetic loci: The possibility of multiple allopatric speciation
FIGURE 4. Inter- (gray) and intraspecific (open) genetic differences in Tettigonia species for CO1 calculated using the pdistance method and treatment of pairwise deletion for gaps with the range of genetic difference within clusters. The box plot displays the median (internal transverse thick line) and interquartile range (box). Short lines indicate maximum and minimum genetic differences. Asterisk denotes a sequence from NCBI; T. viridissima, JN609414–JN609420; T. hispania, EF515121; T. chinensis, HQ609468–HQ609470. (JJ-TU = Jeju Island population of T. ussuriana; JS-TU = Jeongseon population of T. ussuriana; PC-TU = Pyeongchang population of T. ussuriana; MJ-TU = Muju population of T. ussuriana; MG-TU = Mungyeong population of T. ussuriana)
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