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1,369 results for “sexual dimorphism”
Linked collectors and determiners for: Notes on cauliflory, sexual dimorphism and biogeography in Drypetes (Putranjivaceae, Malpighiales) and a taxonomic treatment for D. gabonensis and two new cauliflorous threatened species from Central Africa, D. aphanes sp. nov. and D. cauta sp. nov..
Natural history specimen data linked to collectors and determiners held within, "Notes on cauliflory, sexual dimorphism and biogeography in Drypetes (Putranjivaceae, Malpighiales) and a taxonomic treatment for D. gabonensis and two new cauliflorous threatened species from Central Africa, D. aphanes sp. nov. and D. cauta sp. nov.". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/399549be-1957-4fc0-918a-4aaff6057883">https://bionomia.net/dataset/399549be-1957-4fc0-918a-4aaff6057883</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/399549be-1957-4fc0-918a-4aaff6057883">https://gbif.org/dataset/399549be-1957-4fc0-918a-4aaff6057883</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Sexual Dimorphism of New Zealand Puppet Beetles (Aderidae, Coleoptera, Tenebrionoidea): Systematic Revision, Description of Three New Genera, and Phylogeny for Zenascus, gen. n..
Natural history specimen data linked to collectors and determiners held within, "Sexual Dimorphism of New Zealand Puppet Beetles (Aderidae, Coleoptera, Tenebrionoidea): Systematic Revision, Description of Three New Genera, and Phylogeny for Zenascus, gen. n.". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/11a122a9-8f3e-4a1c-a8d3-5ef3bea09b59">https://bionomia.net/dataset/11a122a9-8f3e-4a1c-a8d3-5ef3bea09b59</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/11a122a9-8f3e-4a1c-a8d3-5ef3bea09b59">https://gbif.org/dataset/11a122a9-8f3e-4a1c-a8d3-5ef3bea09b59</a>. Formatted as a Frictionless Data package.
Figure 17-19. Sexual dimorphism and aedeagus images. 17a in Fifteen new species of Sonoma Casey from the eastern United States and a description of the male of Sonoma tolulae (LeConte) (Coleoptera: Staphylinidae: Pselaphinae)
Figure 17-19. Sexual dimorphism and aedeagus images. 17a) Ventral aspect of abdomen, male (redrawn from Park 1942). 17b) Ventral aspect of abdomen, female. 18) Sonoma cygnus, aedeagus (dorsal view). 19) Sonoma parkorum, aedeagus (dorsal view). Scale lines equal 0.1 mm. Right side of Fig. 17-19 is anatomical left.
Figure 2 in Geographical sexual size dimorphism in an ant-eating spider, Zodarion rubidum (Araneae: Zodariidae)
Figure 2. Relationship between female prosoma size and male prosoma size (both on the log scale). Linear model was estimated using reduced major axis regression (RMA).
Figure 4 in Geographical sexual size dimorphism in an ant-eating spider, Zodarion rubidum (Araneae: Zodariidae)
Figure 4. Geographical variation of female/male prosoma size ratio in respect to the annual average temperature.
Figure 1 in Geographical sexual size dimorphism in an ant-eating spider, Zodarion rubidum (Araneae: Zodariidae)
Figure 1. Map of studied Zodarion rubidum populations. Austria: Graz; Czech Republic: Bransouze, Nepomuk, Prague; France: Perpignan, Montpellier, Les Sables; Germany: Berlin, Frankfurt am Main, Mainz, Cologne; Slovakia: Humenne´, Nováky, Sered'; Spain: Playa d'Aro.
Figure 3 in Geographical sexual size dimorphism in an ant-eating spider, Zodarion rubidum (Araneae: Zodariidae)
Figure 3. Geographical variation in the prosoma size (mean¡SE) of female and male spiders in respect to annual average temperature.
Figs 22–31 in Determination of sexual dimorphism in the puparia of four whitefly pest species from India (Hemiptera: Aleyrodidae)
Figs 22–31. Sexual dimorphism in puparia of Dialeurodes delhiensis David & Sundararaj, 1992. 22, 26, 31 – males; 23, 27 – male vasiform orifice and caudal furrow; 24, 28, 30 – females; 25, 29 – female vasiform orifice and caudal furrow.
Figs 1–3 in Determination of sexual dimorphism in the puparia of four whitefly pest species from India (Hemiptera: Aleyrodidae)
Figs 1–3. Morphometric measurements considered for sexual dimorphism in whitefly puparia. 1 – puparium, dorsal view; 2, 3 – enlarged view, vasiform orifice and caudal furrow. LP – puparium length; BP – puparium width; AL – antennal length; L7AS – seventh abdominal segment length, WVO – vasiform orifice width; LVO – vasiform orifice length; WO – operculum width; LO – operculum length; LL – lingula length; LCF – caudal furrow length.
Figs 12–21 in Determination of sexual dimorphism in the puparia of four whitefly pest species from India (Hemiptera: Aleyrodidae)
Figs 12–21. Sexual dimorphism in puparia of Bemisia tabaci (Gennadius, 1889). 12, 14, 20 – males; 13, 15 – male vasiform orifice and caudal furrow; 16, 18, 21 – females; 17, 19 – female vasiform orifice and caudal furrow.
Figs 4–11 in Determination of sexual dimorphism in the puparia of four whitefly pest species from India (Hemiptera: Aleyrodidae)
Figs 4–11. Sexual dimorphism in puparia of Aleyrodes sp. 4, 6 – males; 5, 7 – male vasiform orifice and caudal furrow; 8, 10 – females; 9, 11 – female vasiform orifice and caudal furrow.
Figs 48–55 in Determination of sexual dimorphism in the puparia of four whitefly pest species from India (Hemiptera: Aleyrodidae)
Figs 48–55. Scatter plots generated through PCA using ratios of puparium morphometric characters and differentiating sexes. 48, 49 – Aleyrodes sp.; 50, 51 – Bemisia tabaci (Gennadius, 1889); 52, 53 – Dialeurodes delhiensis Dialeurodes delhiensis David & Sundararaj, 1992; 54, 55 – Trialeurodes vaporariorum Westwood, 1856.
Figs. 8–12 in New species of Adapterops (Coleoptera: Anthribidae) from east Madagascar with a key to species and notes on sexual dimorphism and biodiversity of the family
Figs. 8–12. Head of Adapterops species, dorsal view, vestiture omitted. 8–9 – A. festivus Frieser, 2010: 8 – male, 9 – female; 10 – A. hankae Trýzna sp. nov., female holotype; 11–12 – A. nasalis Frieser, 2010: 11 – male, 12 – female paratype. Scale bar = 0.5 mm.
Figs. 1–5 in New species of Adapterops (Coleoptera: Anthribidae) from east Madagascar with a key to species and notes on sexual dimorphism and biodiversity of the family
Figs. 1–5. Habitus of Adapterops species. 1–2 – A. festivus Frieser, 2010: 1 – male, 2 – female; 3 – A. hankae Trýzna, sp. nov., female holotype; 4–5 – A. nasalis Frieser, 2010: 4 – male, 5 – female paratype. Scale bar = 1.0 mm.
Figs. 13–17 in New species of Adapterops (Coleoptera: Anthribidae) from east Madagascar with a key to species and notes on sexual dimorphism and biodiversity of the family
Figs. 13–17. Right antenna of Adapterops species, vestiture omitted. 13–14 – A. festivus Frieser, 2010 (13 – male, 14 – female); 15 – A. hankae Trýzna sp. nov., female holotype. 16–17 – A. nasalis Frieser, 2010 (16 – male, 17 – female paratype). Scale bar = 0.2 mm.
Figs. 6–7. 6 in New species of Adapterops (Coleoptera: Anthribidae) from east Madagascar with a key to species and notes on sexual dimorphism and biodiversity of the family
Figs. 6–7. 6 – dead branch inside forest in Andasibe-Mantadia NP, Analamazaotra forest, microhabitat of Adapterops hankae Trýzna, sp. nov.; 7 – rain forest in Ambondrombe Massif, type locality of Adapterops nasalis Frieser, 2010.
Morphological data quantifying sexual dimorphism of Anolis carolinensis in presence and absence of congener
<p>Natural selection favors sexual dimorphism that reduces resource competition between the sexes of the same species. However, niche partitioning among interspecific competitors should counter such divergence, as partitioning the niche results in smaller total niche widths for each individual species, leaving less room for the sexes to diverge. A straightforward (and long-standing) hypothesis emerges: species in competitor-rich ecological communities should show less sexual dimorphism than species in competitor-poor ecological communities. Here, we test this prediction using a well-documented natural experiment generated by the recent arrival of <i>Anolis sagrei </i>to a set of small islands in Mosquito Lagoon, Florida, containing <i>Anolis carolinensis</i>. Despite known interspecific habitat partitioning and rapid evolution in habitat-use traits by <i>A. carolinensis</i> in this system, sexual dimorphism between male and female <i>A. carolinensis</i> was not reduced as predicted on two-species islands relative to islands with only <i>A. carolinensis</i>. This is consistent with a small but growing body of empirical tests of the dimorphism-richness hypothesis that have been ambiguous in their support at best. A rethinking of the validity of this intuitive hypothesis is needed.</p>
Figure 10 in Multiple 2D approaches to human sexual dimorphism of the distal end of femur
Figure 10. Size variation between ages, in males. Quantile plots of size variation between ages in males. Each box shows the median as a line across the middle and the quartiles (10th and 90th percentiles) as its ends. Units are pixels. A. Centroid size computed from 5 landmarks. B. Centroid size computed from 5 landmarks and 23 semilandmarks. C. Size computed from outlines, as the square root area of the first harmonic ellipse.
Figure 9 in Multiple 2D approaches to human sexual dimorphism of the distal end of femur
Figure 9. Size variation between ages, in females. Quantile plots of size variation between ages in females. Each box shows the median as a line across the middle and the quartiles (25th and 75th percentiles) as its ends. Units are pixels. A. Centroid size computed from 5 landmarks. B. Centroid size computed from 5 landmarks and 23 semilandmarks. C. Size computed from outlines, as the square root area of the first harmonic ellipse.
Figure 7 in Multiple 2D approaches to human sexual dimorphism of the distal end of femur
Figure 7. Superposition of males and females, according to the side. A, C, E. Female and male left condyles. B, D, F. Female and male right condyles. A–B. Shape obtained with 5 landmarks. C–D. Shape obtained with 5 landmarks and 23 semilandmarks. E– F. Shape obtained with pseudo-landmarks describing the contours.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
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