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25 results for “Lissotriton vulgaris”
Fig. 4 in The Development Of Olfactory Organ Of Lissotriton Vulgaris (Amphibia, Caudata)
Fig. 4. Cross-section of mature L. vulgaris head at the level of the anterior part of the nasal cavity. Legends: oc — nasal cavity; oe — olfactory epithelium; bc — buccal cavity; ld — lateral diverticulum; re — respiratory epithelium; nac — olfactory capsule; img — intermaxillary gland; Bg — Bowman's glands.
Fig. 5 in The Development Of Olfactory Organ Of Lissotriton Vulgaris (Amphibia, Caudata)
Fig. 5. Cross-section of mature L. vulgaris head at the level vomeronasal gland. L e g e n d s: oc — nasal cavity; oe — olfactory epithelium; ld — lateral diverticulum; re — respiratory epithelium; nac — olfactory capsule; nld — nasolacrimal duct, img — intermaxillary gland; Bg — Bowman's glands.
Fig. 6 in The Development Of Olfactory Organ Of Lissotriton Vulgaris (Amphibia, Caudata)
Fig. 6. Temporal morphogenesis of the L. vulgaris olfactory analyzer structures. L e g e n d s: OP — olfactory placode; OPI — olfactory pits; OS — olfactory sac; NC — nasal cavity; VNO — vomeronasal organ; RE — respiratory epithelium; VNG — vomeronasal gland; BG — Bowman's glands.
Fig. 3 in The Development Of Olfactory Organ Of Lissotriton Vulgaris (Amphibia, Caudata)
Fig. 3. Cross-section of the L. vulgaris larva head at the level of the nasal cavity (a) and vomeronasal organs (b): a — stage 47; b — stage 52. L e g e n d s: oc — nasal cavity; oe — olfactory epithelium; bc — buccal cavity; vno — vomeronasal organ; ct — trabecular lamina.
Fig. 1 in The Development Of Olfactory Organ Of Lissotriton Vulgaris (Amphibia, Caudata)
Fig. 1. Cross-section of the L. vulgaris larvae head at the level of the olfactory placode (a) and choanae (b): a — stage 33; b — stage 41. L e g e n d s: op — olfactory pits; e — eyes; nt — neural tube; nec — neurocoel; p — olfactory placode; ch — choanae; oe — olfactory epithelium; bc — buccal cavity; b — brain.
Fig. 2 in Flexibility is everything: prey capture throughout the seasonal habitat switches in the smooth newt Lissotriton vulgaris
Fig. 2 Frame shots showing the four feeding modes in the smooth newt. In the aquatic stage: a suction feeding under water and b jaw prehension on land. In the terrestrial stage: c suction feeding under water and d tongue prehension on land. The prey (maggot) is indicated by the arrow.
Fig. 1 Landmarks used for the kinematic analyses. 1 upper jaw tip, 2 lower jaw tip, 3 in Flexibility is everything: prey capture throughout the seasonal habitat switches in the smooth newt Lissotriton vulgaris
Fig. 1 Landmarks used for the kinematic analyses. 1 upper jaw tip, 2 lower jaw tip, 3 hyoid (throat), 4 jaw joint, 5 nape, 6 dorsal trunk reference, 7 tongue tip (only digitized when visible)
Fig. 4 in Flexibility is everything: prey capture throughout the seasonal habitat switches in the smooth newt Lissotriton vulgaris
Fig. 4 Scatter plot of the first two principal components. Principal component 1 (PC1) and principal component 2 (PC2) are derived from the 12 kinematic variables to illustrate the relationship among kinematic patterns for the four feeding modes coded by symbols and the ten individuals coded by color. Each data point represents one feeding event, and the ellipses indicate 95 % confidence interval in the four feeding modes. P@1 explains 57 % and P@2 explains 15.5 % of the total variance. See Table 3 for complete loadings of each principal component
Fig. 3 in Flexibility is everything: prey capture throughout the seasonal habitat switches in the smooth newt Lissotriton vulgaris
Fig. 3 Kinematic profiles of the four feeding modes. Kinematic means (dark and bold curves)±SD (pale and slim curves) of gape (blue), hyoid (Vreen), head rotation (oranVe), and tongue movement (Vray, only shown
Fig. 2 in A new case of facultative paedomorphosis in Smooth Newts, Lissotriton vulgaris (Caudata: Salamandridae), in Turkey
Fig. 2. The general view of habitat (A) and a male paedomorphic Lissotriton vulgaris (B, C) from Lake Sazlı (Izmir, Turkey). The arrows show the cloaca (B) and the gills (C).
Figure 1 in First record of facultative paedomorphism in the Kosswig's newt Lissotriton (vulgaris) kosswigi (Freytag, 1955) (Urodela; Salamandridae), endemic to northwestern Turkey
Figure 1. Map showing the distribution of the Lissotriton vulgaris group in Turkey. The range of kosswigi is in red; the range of schmidtlerorum is in blue; the question mark denotes the potential occurrence of lantzi in the extreme northeast of Turkey. Facultative paedomorphic populations for schmidtlerorum are marked with a white star. The first facultative paedomorphic population for kosswigi, newly reported in this paper, is marked with a black star.
Figure 3 in First record of facultative paedomorphism in the Kosswig's newt Lissotriton (vulgaris) kosswigi (Freytag, 1955) (Urodela; Salamandridae), endemic to northwestern Turkey
Figure 3. Lateral view of 4 Lissotriton (vulgaris) kosswigi individuals from İhsaniye, Karasu, representing (from top to bottom) a male metamorph, a male paedomorph, a female paedomorph, and a female metamorph.
Figure 1 in Taxonomic status of a newly described island population of the smooth newt Lissotriton vulgaris (Linnaeus, 1758) from Bozcaada (Çanakkale, Turkey)
Figure 1. Geographic positions of the smooth newt populations used. Locality information is given in Table 1. Colors correspond to the various major clades (named after Babik et al., 2005; Pabijan et al., 2015). The three studied populations are given with a different symbol (star).
Figure 2 in Taxonomic status of a newly described island population of the smooth newt Lissotriton vulgaris (Linnaeus, 1758) from Bozcaada (Çanakkale, Turkey)
Figure 2. Phylogenetic relationships among studied smooth newt populations based on Bayesian Inference of mtDNA sequences (16S rRNA and ND4). Node posterior probabilities> 0.90 are given with asterisks. Population numbers correspond to Figure 1 and Table 1. The studied populations are given by their full names.
Fig. 6 in Flexibility is everything: prey capture throughout the seasonal habitat switches in the smooth newt Lissotriton vulgaris
Fig. 6 First (a) and second (b) phase of the tongue prehension mode shown in Fig. 4a. The time axes are normalized to percentages of corresponding phase duration. Both phases can, therefore, be directly compared to the kinematic profiles shown in Fig. 4. Note the striking similarities of movement patterns of the second phase (b) and the aquatic feeding patterns shown in Fig. 4a, b, c
Fig. 5 in Flexibility is everything: prey capture throughout the seasonal habitat switches in the smooth newt Lissotriton vulgaris
Fig. 5 Significant correlation plots of kinematic variables. The feeding modes are color*coded: blue (a, b) suction feeding in the aquatic stage, liVWt brown (c, d), jaw prehension in the aquatic stage, and Vreen (e–l)
Data from: Past forest-cover explains current genetic differentiation in the Carpathian newt (Lissotriton montandoni), but not in the smooth newt (L. vulgaris)
<p class="MsoNormal"><strong>Aim:</strong><strong><span> </span></strong><span>Current genetic variation and differentiation are expected to reflect the effects of past rather than present landscapes due to time lags, i.e., the time necessary for genetic diversity to reach equilibrium and reflect demography. </span>Time lags can affect our ability to infer landscape use and model connectivity, and also obscure the genetic consequences of recent landscape changes<span>. In this work, we test if past forest-cover better explains contemporary patterns of genetic differentiation in two closely related but ecologically distinct newt species – <em>Lissotriton montandoni</em> and <em>L. vulgaris</em>. </span></p> <p class="MsoNormal"><span><strong>Location: </strong></span><span><span>Carpathian Mountains and foothills.</span></span></p> <p class="MsoNormal"><span><strong>Methods: </strong>Genetic differentiation between populations was related with landscape resistance optimized with tools from landscape genetics, for multiple timeframes, using forest-cover data from 1963 to 2015. Analyses were conducted for </span><span><span>pairs of populations at distances from 1 to 50 km.</span></span></p> <p class="MsoNormal"><span><strong>Results:</strong></span><span><strong><span> </span></strong></span><span><span>We </span></span><span>find evidence for a time lag in <em>L. montandoni</em>, with forest-cover from 40 years ago (ca. 10 newt generations) better explaining current genetic differentiation. In <em>L. vulgaris</em>, current genetic differentiation was better predicted by present land-cover models with lower resistance given to open-forests. This result may reflect the generalist ecology of<em> L. vulgaris</em>, its lower effective population sizes and exposure to habitat destruction and fragmentation.</span></p> <p class="MsoNormal"><strong>Main conclusions:</strong><span> <span>Our study provides evidence for time lags in <em>L. montandoni</em>, showing that the genetic consequences of landscape change for some species are not yet evident. Our findings highlight the interspecific variation in time lag prevalence, and demonstrate that current patterns of genetic differentiation should be interpreted in the context of historical landscape changes.</span></span></p>
Data from: Past forest-cover explains current genetic differentiation in the Carpathian newt (Lissotriton montandoni), but not in the smooth newt (L. vulgaris)
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Data from: Landscape genetics reveals contrasting patterns of connectivity in two newt species (Lissotriton montandoni and L. vulgaris)
<p><span>Ecologically distinct species may respond to landscape changes in different ways. </span>In addition to basic ecological data, <span>the extent of the</span> geographic range has been successfully used as an indicator of species sensitivity to anthropogenic landscapes, with widespread species usually found to be less sensitive compared to range-restricted species. <span>In this study, we investigate connectivity patterns of two closely related but ecologically distinct newt species – the range-restricted, <em>Lissotriton montandoni</em> and the widespread,<em> L. vulgari</em>s – using genomic data, a highly replicated setting (six geographic regions per species), and tools from landscape genetics. Our results show the importance of forest for connectivity in both species, but at the same time suggest differential use of forested habitat, with <em>L. montandoni</em> and <em>L. vulgaris</em> showing the highest connectivity at forest-core and forest-edges, respectively. Anthropogenic landscapes (i.e., higher crop- or urban-cover) increased resistance in both species, but the effect was one to three orders of magnitude stronger in <em>L. montandoni</em> than in <em>L. vulgaris</em>. </span><span>This result is consistent with a view of <em>L. vulgaris</em> as an ecological generalist. </span><span>Even so, currently, the negative impact of anthropogenic landscapes is mainly seen in connectivity among L. vulgaris populations, which show significantly stronger isolation and lower effective sizes relative to <em>L. montandoni</em>. Overall, this study emphasizes how habitat destruction is compromising genetic connectivity not only in endemic, range-restricted species of conservation concern but also in widespread generalist species, despite their comparatively lower sensitivity to anthropogenic landscape changes.</span></p>
Figure 2 in Patterns of morphometric variation in the smooth newt (Lissotriton vulgaris) from Greece: environmental correlates
Figure 2. Plot of CV1–CV3 scores showing separation of populations in multivariate space for male and female smooth newts from Greece. The proportion of the total variation summarized in the plots is 76.9% and 79.6%, respectively. For population numbers and localities see Appendix 1. M: metamorphosed individuals; P: paedomorphic individuals.
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