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FIGURE 1 in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species

FIGURE 1. Cliona californiana de Laubenfels, 1932. A, expanded specimen, scale bar approx. 4 cm; B, contracted specimen, scale bar approx. 1 cm; C, expanded papilla and ostia, scale bar approx. 5 mm; D, tylostyle, scale bar 100 µm; E, polytylote tylostyle, scale bar 100 µm; F, heads of tylostyles, scale bar 10 µm.

FIGURE 4. Cliona lobata Hancock, 1849. A in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species

FIGURE 4. Cliona lobata Hancock, 1849. A, tylostyle, scale bar 50 µm; B, tylote head; C, multilobed head; D, subterminal tyle; E, stylote head with a subterminal swelling, scale bar 20 µm; F, small spiraster, scale bar 40 µm; G–I, large spiraster, scale bar 40 µm.

FIGURE 13. Sphaerotylus raphidophora n in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species

FIGURE 13. Sphaerotylus raphidophora n. sp. (cont.) A, composite of all spicule types at same magnification, scale bar 500 µm; B, raphides, scale bar upper 3 µm and lower 5 µm; C, small tylostyles, scale bar 50 µm; D, small subtylostyle, scale bar 100 µm; E, medium tylostyle, scale bar 50 µm; F, large subtylostyle, scale bar 100 µm.

FIGURE 6 in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species

FIGURE 6. Multifistulate Polymastia spp. in the NW Pacific. Numbers, form and size of fistulae. Scale bar, 3 cm on all but C where scale bar 5 cm. A, P. kurilensis Koltun; B, P. laganoides Burton; C, P. fluegeli Lehnert et al.; D, large P. toporoki Koltun; E, small P. toporoki; F, P. affinis Thiele, fistulae contracted; G, P. affinis, fistulae expanded. A, D–G from Koltun 1966; B from Lambe 1895, courtesy Royal Society of Canada; C from Stone et al. 2011.

FIGURE 8 in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species

FIGURE 8. Polymastia pachymastia de Laubenfels, 1932. A, fistulae expanded and oscula open, scale bar approx. 1 cm; B, fistulae contracted and oscula closed, scale bar approx. 1 cm; C, yellow specimen, scale bar approx. 1 cm; D, large specimen, scale bar approx. 10 cm; E, SEM cross section showing palisade of small tylostyles in ectosome, and long styles extending beyond ectosome, scale bar 1 cm; F, style I, scale bar 500 µm; G, head of style I, scale bar 20 Μm; H, tylostyle I, scale bar 100 µm; I, tylostyle I head, scale bar 30 µm; J, tylostyle III, scale bar 300 µm; K, head and foot of tylostyle III, scale bar 100 Μm; L, tylostyle II, scale bar 50 Μm; M, head of tylostyle II, scale bar 10 Μm.

FIGURE 5. Pione gibraltarensis n in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species

FIGURE 5. Pione gibraltarensis n. sp.. A, tylostyle, scale bar 100 µm; B, C, subtylote heads, scale bar 30 µm; D, subterminal tyle, scale bar 30 µm; E, acanthoxea, scale bar 30 µm; F, spiny spirasters, scale bar 10 µm; G, smooth spiraster, scale bar 10 µm; H, spiny spirasters, scale bar 10 µm.

FIGURE 7. Polymastia kurilensis Koltun, 1962. A in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species

FIGURE 7. Polymastia kurilensis Koltun, 1962. A, thick cross section, scale bar 10 mm; B, long and short spicules, scale bar 100 µm; C, head of subtylostyle, scale bar 10 µm; D, barbed end of thin onychaete-like spicule, scale bar 10 µm.

FIGURE 10. Polymastia piscesae n in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species

FIGURE 10. Polymastia piscesae n. sp. A, large living specimen, scale bar approx. 1 cm; B, cross section showing fibre tracts extending to ectosome, scale bar 3 mm; C, palisade of small tylostyles in ectosome, scale bar 300 Μm; D, style I, scale bar 500 Μm; E, head of style I, scale bar 50 µm; F, subtylostyle II, scale bar 100 µm; G, tylostyle II, scale bar 50 µm; H, fusiform tylostyle III, scale bar 200 Μm; I, head of tylostyle III, scale bar 10 µm.

FIGURE 3. Cliona lobata Hancock, 1849. A in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species

FIGURE 3. Cliona lobata Hancock, 1849. A, Side view of upper surface showing erect tylostyles and protruding dictyoceratid fibre (right), scale bar 100 µm; B, Top view of upper surface showing sieve pores, scale bar 1 mm; C, Portion of dictyoceratid fibre with soft tissue removed, scale bar 1 mm; D, lamellated wall & central pith of dictyoceratid fibre, scale bar 10 µm; E, spicule enclosed by wall of dictyoceratid fibre, scale bar 10 µm.

FIGURE 2 in Taxonomic review of Hadromerida (Porifera, Demospongiae) from British Columbia, Canada, and adjacent waters, with the description of nine new species

FIGURE 2. Cliona californiana de Laubenfels, 1932. 'Box and whisker' comparisons of tylostyles length A and width B from Mexican Pacific with East Atlantic and Mediterranean specimens (redrawn from Carballo et al. 2004), and from both regions with British Columbia specimens (our data, right). The bottom of the box represents the 25th percentile, the top the 75th percentile, and the line bisecting the box the 50th percentile (the median), the bottom and top of the whisker are the minimum and maximum values.

opencc-zeroDec 2022View details →

dryad32/100

Butterfly nectar foraging and flowering plant community data from field surveys in Victoria, British Columbia, Canada

<p>The negative impacts of non-native species have been well documented, but some non-natives can play a positive role in native ecosystems. One way that non-native plants can positively interact with native butterflies is by provisioning nectar. Relatively little is known about the role of phenology in determining native butterfly visitation to non-native plants for nectar, yet flowering time directly controls nectar availability. Here, we investigate the phenological patterns of flowering by native and non-native plants and nectar foraging by native butterflies in an oak savanna on Vancouver Island, British Columbia, Canada. We also test whether native butterflies select nectar sources in proportion to their availability. We found that non-native plants were well integrated into butterfly nectar diets (83% of foraging observations) and that visitation to non-natives increased later in the season when native plants were no longer flowering. We also found that butterflies selected non-native flowers more often than expected based on their availability, suggesting that these plants represent a potentially valuable resource. Our study shows that non-native species have the potential to drive key species interactions in seasonal ecosystems. Management regimes focused on eradicating non-native species may need to re-consider their aims and evaluate resources that non-natives provide.</p>

opennotspecifiedMar 2022View details →

FIG. 3. A in A Successful Reintroduction of Columbia Spotted Frog (Rana luteiventris) through Repatriation of Recently Hatched Larvae

FIG. 3. A satellite image and the approximate locations of CSF egg mass deposition locations at the Taylors Fork repatriation site.

opennotspecifiedMar 2022View details →

FIG. 1 in A Successful Reintroduction of Columbia Spotted Frog (Rana luteiventris) through Repatriation of Recently Hatched Larvae

FIG. 1. Location of Taylors Fork CSF repatriation site and North Fork (CSF donor site) in the United States Uinta-Wasatch-Cache National Forest, Utah, including the location of historic CSF locations in the Weber River watershed.

opennotspecifiedJul 2023View details →

FIGURE 1 in Validation of Cretalamoha boweni Nyborg & Garassino (Brachyura: Homolidae) from the early Campanian, Upper Cretaceous of British Columbia, Canada

FIGURE 1. Cretalamoha boweni gen. et sp. nov., dorsal view of carapace, holotype CDM 047, early Campanian, Pender Formation of Vancouver Island, British Columbia, Canada. Scale bar = 1 cm.

closedIPD-NOFeb 2026View details →

Columbia Moves Physical Activity

ClinicalTrials.gov study NCT03509129. IPD Sharing: NO. Countries: 1. Publications: 1.

Preventing Recurrence of Thromboembolic Events Through Coordinated Treatment in the District of Columbia

ClinicalTrials.gov study NCT00703274. IPD Sharing: Not stated. Countries: 1. Publications: 1.

Social Determinants in Chronic Disease in British Columbia

ClinicalTrials.gov study NCT02203084. IPD Sharing: Not stated. Countries: 1. Publications: 10.

Extended Follow-up of Columbia, MO Serum Bank Participants

ClinicalTrials.gov study NCT00340210. IPD Sharing: Not stated. Countries: 1. Publications: 3.

WelTelOAKTREE: Text Messaging to Support Patients With HIV/AIDS in British Columbia

ClinicalTrials.gov study NCT02603536. IPD Sharing: UNDECIDED. Countries: 1. Publications: 3.

Personalized Oncogenomics (POG) Program of British Columbia

ClinicalTrials.gov study NCT02155621. IPD Sharing: Not stated. Countries: 1. Publications: 11.