TWO NEW CANADIAN TORTRICIDS (LEPID.)

Alar expanse 15 to 16 mm.Head small, with long, rather bristly scales, of which it is easily denuded, the colours mingled dingy white and buff; labial palpi projecting, elongate triangular, densely scaled, of a buff colour, indistinctly margined with white; maxillary palpi not in evidence; tongue slender, naked, eyes globular, large, purplish brown; antennæ silvery white above, pale brown beneath, the joints distinct and clothed with very short pubescence. Thorax buff with white median line, patagia buff; bordered more or less distinctly with white. Abdomen clothed with buff or fulvous scales, with indistinct bands of white at base. Legs shading from pale brown femora to yellowish-white tarsi. Wings broad. Fore wings, ground dour of black, buff and white scales intermingled, ranging from dark to light in proportion to the number of white scales, which is variable; a narrow, rather indefinite, white streak extends longitudinally from the base of the wing near the inner margin to about the middle; a more distinct white area has its base on the costa in the apical third extending obliquely backward about half across the wing; a narrow white line curves around the outer margin, diverging quite widely from the latter near the apical and the outer angles, most distinct near the costa, where it very nearly touches the base of the costal fascia, to this succeeds a dark band and a second narrower white line followed by a fine black marginal line; fringes white, variegated with two dusky bands.

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The Recent Surge of Walsh Glacier, Yukon and Alaska

Journal of Glaciology ◽

10.1017/s0022143000019481 ◽

1966 ◽

Vol 6 (45) ◽

pp. 375-381 ◽

Cited By ~ 13

Author(s):

Austin Post

Keyword(s):

Central Portion ◽

Aerial Photographs ◽

Surface Features ◽

Terminal Area

Walsh Glacier, Yukon and Alaska, after 40 years or more of virtual stagnation in the terminal area, began a very rapid surge in late 1960 or 1961. A maximum movement of 10.1 km. occurred in the central portion of the glacier between 1961 and 1965, as shown by aerial photographs of the displacement of surface features, perhaps the greatest such displacement yet reported for any surging glacier.

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UNDESCRIBED SPECIES AND RACES OF PHALAENIDAE (LEPID.)

The Canadian Entomologist ◽

10.4039/ent72191-10 ◽

1940 ◽

Vol 72 (10) ◽

pp. 191-201 ◽

Cited By ~ 2

Author(s):

J. McDunnough

Keyword(s):

Outer Margin ◽

Central Portion ◽

Undescribed Species ◽

Prominent Feature ◽

Border Line ◽

Typical Form ◽

Pure White

Much paler in the ground-color of the forewing than the typical form, the olive-gray shades being replaced by whitish; this is particularly evident between the reniform and apex of wing and along the inner margin. The broad blackish shading through central portion of wing from base to outer margin is heavy and a similar shade patch occurs on costa above the orbicular and reniform; the former is filled with white and in consequence is quite a prominent feature of the maculation, the latter is also largely white-filled with a slight ochreous shade in central portion and a strong black border-line on basal side. Secondaries almost pure white with faint traces of smoky terminal shading (somewhat more pronounced in the female) and indications of a smoky postmedian line in costal half of wing. Expanse 35 mm.

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The Recent Surge of Walsh Glacier, Yukon and Alaska

Journal of Glaciology ◽

10.3189/s0022143000019481 ◽

1966 ◽

Vol 6 (45) ◽

pp. 375-381

Author(s):

Austin Post

Keyword(s):

Central Portion ◽

Aerial Photographs ◽

Surface Features ◽

Terminal Area

Walsh Glacier, Yukon and Alaska, after 40 years or more of virtual stagnation in the terminal area, began a very rapid surge in late 1960 or 1961. A maximum movement of 10.1 km. occurred in the central portion of the glacier between 1961 and 1965, as shown by aerial photographs of the displacement of surface features, perhaps the greatest such displacement yet reported for any surging glacier.

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A NEW RACE OF SPHINX GORDIUS (LEPID.)

The Canadian Entomologist ◽

10.4039/ent6373a-3 ◽

1931 ◽

Vol 63 (3) ◽

pp. 73-73 ◽

Cited By ~ 1

Author(s):

J. McDunnough

Keyword(s):

Outer Margin ◽

Central Portion ◽

Dark Line ◽

Typical Form ◽

New Race

Differs from typical gordius from the cast in its smaller size and more constrasted maculation, the costa and inner margin of forewing being shaded with deep smoky whilst the central portion of the wing is suffused with whitish shades, especially preceding the wavy subterminal dark line. Between this line and the outer margin of the wing the teriminal area is heavily suffused with deep smoky, in contradistinction to gordius borealis Clark in which this region is sprinkled with whitish, more as in the typical form. The dark intravenular streaks are reduced, much as in gordius oslari R. & J. from Colorado, but from this race the smaller size and the better defined transverse lines will distinguish it. Expanse 70 mm.

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Concepts and Algorithms for Terminal-Area Traffic Management

10.23919/acc.1984.4788371 ◽

1984 ◽

Cited By ~ 18

Author(s):

H. Erzberger ◽

J. D. Chapel

Keyword(s):

Traffic Management ◽

Terminal Area

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Floristic Variation of Tree Communities and Their Association with Soil Properties in Pulau Jerejak, Penang, Peninsular Malaysia

Science Letters ◽

10.24191/sl.v14i1.7899 ◽

2020 ◽

Vol 14 (1) ◽

pp. 34

Author(s):

Faezah Pardi

Keyword(s):

Tree Species ◽

Diversity Index ◽

Basal Area ◽

Peninsular Malaysia ◽

Importance Value ◽

Conservation Action ◽

Endangered Tree ◽

Endangered Tree Species ◽

Tree Communities ◽

Floristic Variation

This study was conducted at Pulau Jerejak, Penang to determine the floristic variation of its tree communities. A 0.5-hectare study plot was established and divided into 11 subplots. A total of 587 trees with diameter at breast height (DBH) of 5 cm and above were measured, identified and recorded. The tree communities comprised of 84 species, 63 genera and 32 families. The Myrtaceae was the most speciose family with 10 recorded species while Syzgium glaucum (Myrtaceae) was the most frequent species. The Myrtaceae recorded the highest density of 306 individuals while Syzgium glaucum (Myrtaceae) had the highest species density of 182 individuals. Total tree basal area (BA) was 21.47 m2/ha and family with the highest BA was Myrtaceae with 5.81 m2/ha while at species level, Syzgium glaucum (Myrtaceae) was the species with the highest total BA in the plot with value of 4.95 m2/ha. The Shannon˗Weiner Diversity Index of tree communities showed a value of 3.60 (H'max = 4.43) and Evenness Index of 0.81 which indicates high uniformity of tree species. The Margalef Richness Index (R') revealed that the tree species richness was 13.02. Myrtaceae had the highest Importance Value of 20.4%. The Canonical Correspondence Analysis (CCA) showed that Diospyros buxifolia (Ebenaceae) and Pouteria malaccensis (Sapotaceae) were strongly correlated to low pH. Dysoxylum cauliflorum (Meliaceae) and Eriobotrya bengalensis (Rosaceae) were correlated to phosphorus (P) and calcium ion (Ca2+), respectively. Therefore, the trees species composition at Pulau Jerejak showed that the biodiversity is high and conservation action should be implemented to protect endangered tree species. Keywords: Floristic variation; Tree communities; Trees composition; Pulau Jerejak; Species diversity

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