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149 results for “species connectivity”
Fig. 3 Reproductive system. A in Connected across the ocean: taxonomy and biogeography of deep-water Nudibranchia from the Northwest Pacific reveal trans-Pacific links and two undescribed species
Fig. 3 Reproductive system. A, Bathydoris antoni sp. nov., general view. B, Bathydoris antoni sp. nov., male part and female gland mass partly removed. C, Dendronotus patricki, MIMB 42240. D, Dendronotus kurilensis sp. nov., paratype MIMB 42238. Abbreviations:
Fig. 2 in Connected across the ocean: taxonomy and biogeography of deep-water Nudibranchia from the Northwest Pacific reveal trans-Pacific links and two undescribed species
Fig. 2 Bathydoris antoni sp. nov, holotype MIMB 42229, external morphology and SEM micrographs of internal morphology. A, dorsal view. B, ventral view. C, lateral view from left. D, lateral view from right. E, jaw plate. F, radula. G, anterior radular portion. H, details of denticulation in rachidian and innermost lateral teeth. I, inner and middle lateral teeth. Scale bars: A–D, 5 mm; E, F, 500 µm; G, I, 100 µm; H, 50 µm. Living photos by Anastassya Maiorova
Fig. 1 in Connected across the ocean: taxonomy and biogeography of deep-water Nudibranchia from the Northwest Pacific reveal trans-Pacific links and two undescribed species
Fig. 1 Map of the Northwest Pacific representing collection sites and respective nudibranch species found
FIGURE 2. Salvia ozolotepecensis, floral details. A Calyx. B Ovary and gynobase. C Corola. D Stamens. E Stamen detail showing connective ornamentation. F in Salvia ozolotepecensis, S. patriciae and S. sirenis (Lamiaceae), three new species from Miahuatlán district, Oaxaca, Mexico
FIGURE 2. Salvia ozolotepecensis, floral details. A Calyx. B Ovary and gynobase. C Corola. D Stamens. E Stamen detail showing connective ornamentation. F Style apex [Photographs taken from I. Fragoso 369 (MEXU!)].
Data from: Regional variation in drivers of connectivity for two frog species (Rana pretiosa and R. luteiventris) from the U.S. Pacific Northwest
Comparative landscape genetics has uncovered high levels of variation in which landscape factors affect connectivity among species and regions. However, the relative importance of species traits vs. environmental variation for predicting landscape patterns of connectivity is unresolved. We provide evidence from a landscape genetics study of two sister taxa of frogs, the Oregon spotted frog (Rana pretiosa) and the Columbia spotted frog (R. luteiventris) in Oregon and Idaho, USA. Rana pretiosa is relatively more dependent on moisture for dispersal than R. luteiventris for dispersal, so if species traits influence connectivity, we predicted that connectivity among R. pretiosa populations would be more positively associated with moisture than R. luteiventris. However, if environmental differences are important drivers of gene flow, we predicted that connectivity would be more positively related to moisture in arid regions. We tested these predictions using eight microsatellite loci and gravity models in two R. pretiosa regions and four R. luteiventris regions (n = 1,168 frogs). In R. pretiosa, but not R. luteiventris, connectivity was positively related to mean annual precipitation, supporting our first prediction. In contrast, connectivity was not more positively related to moisture in more arid regions. Various temperature metrics were important predictors for both species and in all regions, but the directionality of their effects varied. Our results indicate that connectivity in R. pretiosa may be negatively impacted by reduction in mean annual precipitation. Overall, the pattern of variation in drivers of connectivity was consistent with predictions based on species traits rather than on environmental variation.
Data from: Influence of the larval phase on connectivity: strong differences in the genetic structure of brooders and broadcasters in the Ophioderma longicauda species complex
Closely related species with divergent life-history traits are excellent models to infer the role of such traits in genetic diversity and connectivity. Ophioderma longicauda is a brittle star species complex composed of different genetic clusters, including brooders and broadcasters. These species diverged very recently and some of them are sympatric and ecologically syntopic, making them particularly suitable to study the consequences of their trait differences. At the scale of the geographic distribution of the broadcasters (Mediterranean Sea and north-eastern Atlantic), we sequenced the mitochondrial marker COI and genotyped an intron (i51) for 788 individuals. In addition, we sequenced 10 nuclear loci newly developed from transcriptome sequences, for six sympatric populations of brooders and broadcasters from Greece. At the large scale we found a high genetic structure within the brooders (COI: 0.07
FIGURE 3. Salvia topiensis A. Habit. B. Floral bract, outer surface. C. Calyx. D. Corolla. E. Connectives and thecae. F in Salvia albicalyx and Salvia topiensis (Lamiaceae), two new species from Durango, Mexico
FIGURE 3. Salvia topiensis A. Habit. B. Floral bract, outer surface. C. Calyx. D. Corolla. E. Connectives and thecae. F. Apex of the style. G. Nutlets, dorsal (left) and ventral (right) surfaces. Illustration based on A. Benítez-P. 2426 and S. Acevedo 196 & D. Bayona; drawn by J.G. González-Gallegos.
FIGURE 1. Salvia albicalyx A. Habit. B. Floral bract, outer surface. C. Calyx. D. Corolla. E. Connectives and thecae. F in Salvia albicalyx and Salvia topiensis (Lamiaceae), two new species from Durango, Mexico
FIGURE 1. Salvia albicalyx A. Habit. B. Floral bract, outer surface. C. Calyx. D. Corolla. E. Connectives and thecae. F. Apex of the style. G. Nutlets, dorsal (left) and ventral (right) surfaces. Illustration based on I. Solís 957; drawn by J.G. González-Gallegos.
FIGURE 2. A–E in Three decades to connect the sexes: Calatola microcarpa (Icacinaceae), a new species from the Southwestern Amazon
FIGURE 2. A–E. Female specimen of Calatola microcarpa Duno & J. Janovec. A) Floriferous female branch. B) Details of female inflorescence. C) Details of calyx and bract. D) Details of flower showing calyx, corolla and ovary. E) Details of flower showing the ovary and the stigma (L. Valenzuela 4202, CICY)
FIGURE 3 in Three decades to connect the sexes: Calatola microcarpa (Icacinaceae), a new species from the Southwestern Amazon
FIGURE 3. Fruits of Calatola costaricensis Standl. and Calatola microcarpa Duno & J. Janovec. A) Fruit of Calatola costaricensis with the exocarp and mesocarp removed, showing the main and secondary ribs (R. Duno s.n., CICY). B) Fruit of Calatola microcarpa
Data from: Genomic tests of the species-pump hypothesis: recent island connectivity cycles drive population divergence but not speciation in Caribbean crickets across the Virgin Islands
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Data from: Functional connectivity experiments reflect routine movement behavior of a tropical hummingbird species
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Combining population genomics with demographic analyses highlights habitat patchiness and larval dispersal as determinants of connectivity in coastal fish species
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Data from: Phylogenetic signal in module composition and species connectivity in compartmentalized host-parasite networks
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Data from: Unexpected cryptic species diversity in the widespread coral Seriatopora hystrix masks spatial-genetic patterns of connectivity
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Data from: Testing the consistency of connectivity patterns for a widely dispersing marine species
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Data from: Adaptive evolution and segregating load contribute to the genomic landscape of divergence in two tree species connected by episodic gene flow
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Data from: Genome-wide SNPs resolve spatiotemporal patterns of connectivity within striped marlin (Kajikia audax), a broadly distributed and highly migratory pelagic species
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Data from: Divergent landscape effects on population connectivity in two co-occurring amphibian species
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Data from: Variation in habitat connectivity generates positive correlations between species and genetic diversity in a metacommunity
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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