The lichens and lichenicolous fungi of Haida Gwaii (Queen Charlotte Islands), British Columbia, Canada. 5. A new species of Lecanora from shoreline rocksThis paper is one of a selection of papers published as part of the special Schofield Gedenkschrift.

Botany ◽  
2010 ◽  
Vol 88 (4) ◽  
pp. 352-358 ◽  
Author(s):  
Irwin M. Brodo
Keyword(s):  
British Columbia ◽  
New Species ◽  
Pacific Northwest ◽  
Similar Species ◽  
Haida Gwaii ◽  
Queen Charlotte Islands ◽  
The Pacific ◽  
A New Species ◽  
Selection Of ◽  
Northeast Coast

A species of Lecanora in the L. dispersa group, with a well-developed pale thallus and a granular epihymenium, resembling L. albescens , is found exclusively on shoreline rocks and appears to be new. It is described as Lecanora schofieldii  sp. nov., found mainly in the Pacific Northwest, but also rarely on the northeast coast. Its distinctions from similar species on shoreline rocks are given, together with a key for their identification. The first western record of L. xylophila from rocks is given.

Occella impi, a New Species of Sea Poacher from British Columbia with Notes on Related Species (Agonidae, Pisces)

1970 ◽  
Vol 27 (6) ◽  
pp. 1109-1114 ◽  
Author(s):  
C. G. Gruchy
Keyword(s):  
British Columbia ◽  
New Species ◽  
Related Species ◽  
Single Specimen ◽  
Queen Charlotte Islands ◽  
A New Species

Occella impi, a new species of sea poacher, is described from a single specimen captured in the Queen Charlotte Islands, British Columbia. Occella impi differs from other species of Occella in having spinous plates on the breast, the anus nearer the anal fin, and fewer anal rays; also, the numbers of bony body plates are distinctive. A key to the known species of Occella, based primarily on the numbers of bony body plates, is included. The size of the maxillary barbel and number of infralateral plates are shown to be characteristic of the genera Occella and Stellerina.

A New Species of Bradyidius (Copepoda: Calanoida) from the Pacific Coast of North America

1966 ◽  
Vol 23 (6) ◽  
pp. 805-811 ◽  
Author(s):  
Tai Soo Park
Keyword(s):  
British Columbia ◽  
New Species ◽  
North America ◽  
Pacific Coast ◽  
Vancouver Island ◽  
Saanich Inlet ◽  
The Pacific ◽  
A New Species

A new species Bradyidius saanichi from Saanich Inlet, Vancouver Island, British Columbia, Canada, is described and illustrated in detail. This species is closely related to B. pacificus (Brodsky, 1950) among the six previously known species in the genus, but can be readily distinguished from the latter by the strongly divergent rostral rami in addition to some other differences.

Description of Mycale bamfieldense n.sp. (Porifera, Demospongiae, Poecilosclerida) from Vancouver Island, British Columbia

1989 ◽  
Vol 67 (3) ◽  
pp. 674-677 ◽  
Author(s):  
H. M. Reiswig ◽  
H. Kaiser
Keyword(s):  
British Columbia ◽  
New Species ◽  
Vancouver Island ◽  
Pacific Basin ◽  
Cytoplasmic Vacuoles ◽  
The Pacific ◽  
Sponge Spicules ◽  
A New Species ◽  
Outer Coast

A new species of Porifera, Mycale banfieldense (Demospongiae, Poecilosclerida), is described from a semiobscure, intertidal cavern of the outer coast of Vancouver Island, British Columbia, Canada. This is the first species of Mycale from the Pacific basin known to possess micracanthoxea microscleres, and only the second such species worldwide. These microscleres, which average 4.2 × 0.2 μm, are the smallest sponge spicules discovered to date. They are formed individually within cytoplasmic vacuoles of anucleolate scleroblasts but each scleroblast contains 20 to 50 similar spicules.

Calicium sequoiae, a new lichen species from north-western California, USA

2008 ◽  
Vol 40 (3) ◽  
pp. 185-194 ◽  
Author(s):  
Cameron B. WILLIAMS ◽  
Leif TIBELL
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Pacific Northwest ◽  
Its Region ◽  
Sequoia Sempervirens ◽  
Old Growth ◽  
The Pacific ◽  
Secondary Substance ◽  
North Western ◽  
A New Species

Abstract:We describe Calicium sequoiae as a new species of lichenized Ascomycota from north-western California, USA. The species is distinguished morphologically from other known members of Calicium by its stalks that react I+ blue, mature ascospores that are ornamented with spiral ridges, and apothecia that produce prominent white pruina. It is also the only Calicium known to produce thamnolic acid as a major secondary substance. Sequences from the ITS-region showed C. sequoiae to be unique among calicioid Physciaceae, and phylogenetic analysis positioned it close to C. adspersum, C. chlorosporum, C. lenticulare, Cyphelium notarisii, and C. tigillare. Thus far, Calicium sequoiae has been collected only from old-growth redwood (Sequoia sempervirens) forests, where it occurred on thick, fibrous bark of large redwood trees. A key to the 12 species of Calicium known from the Pacific Northwest is provided.

A glacial readvance during retreat of the Cordilleran Ice Sheet, British Columbia central coast

2017 ◽  
Vol 87 (3) ◽  
pp. 468-481 ◽  
Author(s):  
Jordan B. R. Eamer ◽  
Dan H. Shugar ◽  
Ian J. Walker ◽  
Olav B. Lian ◽  
Christina M. Neudorf ◽  
...  
Keyword(s):  
British Columbia ◽  
Pacific Northwest ◽  
Ice Sheet ◽  
Cold Climate ◽  
Haida Gwaii ◽  
Central Coast ◽  
Geomorphic Mapping ◽  
The Pacific ◽  
Cordilleran Ice Sheet ◽  
The Last Glacial

AbstractDescriptions of the Cordilleran Ice Sheet retreat after the last glacial maximum have included short-lived readvances occurring during the Older and Younger Dryas stadial periods and into the Holocene, but identification of these events has been largely limited to southwest and central British Columbia and northwest Washington State. We present evidence of a late Pleistocene readvance of Cordilleran ice occurring on the central coast of British Columbia on Calvert Island, between northern Vancouver Island and Haida Gwaii. Evidence is provided by sedimentological and paleoecological information contained in a sedimentary sequence combined with geomorphic mapping of glacial features in the region. Results indicate that a cold climate existed between 15.1 and 14.3 cal ka BP and that ice advanced to, and then retreated from, the western edge of the island between 14.2 and 13.8 cal ka BP. These data provide the first evidence of a major fluctuation in the retreating ice sheet margin in this region and suggest that a cold climate was a major factor in ice readvance. These data contribute to the understanding of past temperature, ice loading and crustal response, the nature of ice margin retreat, and the paleoenvironment of an understudied area of the Pacific Northwest.

Sediment transfer by shallow landsliding in the Queen Charlotte Islands, British Columbia

2002 ◽  
Vol 39 (2) ◽  
pp. 189-205 ◽  
Author(s):  
Yvonne Martin ◽  
Kenneth Rood ◽  
James W Schwab ◽  
Michael Church
Keyword(s):  
British Columbia ◽  
Pacific Northwest ◽  
Probability Distributions ◽  
Sampling Period ◽  
Sampling Bias ◽  
Drainage Basins ◽  
Physical Mechanisms ◽  
Queen Charlotte Islands ◽  
The Pacific ◽  
Sediment Transfer

Despite the importance of landsliding in routing sediment through mountainous drainage basins, few studies have documented landsliding rates over extended time and space scales. We have investigated landsliding in surficial material in the Queen Charlotte Islands using a large inventory of events, derived from aerial photography, covering an area of 166.7 km2. The mean erosion rate for shallow landsliding is 0.10 mm·a–1, which is at the upper end of shallow landsliding rates observed in the Pacific Northwest and coastal British Columbia, but several orders of magnitude lower than rock-based landsliding rates reported in the literature. Probability distributions for landslide area and volume are somewhat convex in form. Flattening of the curve found at low magnitudes may be due to sampling bias or physical mechanisms inhibiting failure, and the steepening for high values may exist because the sampling period is not long enough to adequately represent large events. Landslides generally initiate on hillslope gradients greater than 0.50–0.60. The largest numbers of landslides occur on south- to southwest-facing slopes and east- to northeast-facing slopes. Most events occur on concave and straight hillslopes in upper-slope positions. Landsliding rates were found not to be affected by rock type. Hillslopes in the Queen Charlotte Islands are often mantled by weathered Quaternary deposits and, hence, landsliding events are not directly controlled by weathering of bedrock. About 31% of landslides identified in this study deposited material in stream reaches, with about 83% of these landslides deposited in reaches with gradients between 3% and 10%.

New evidence for the age of the Skonun Formation, Queen Charlotte Islands, British Columbia

1981 ◽  
Vol 18 (12) ◽  
pp. 1900-1903 ◽  
Author(s):  
N. Champigny ◽  
C. M. Henderson ◽  
G. E. Rouse
Keyword(s):  
British Columbia ◽  
Pacific Northwest ◽  
Middle Miocene ◽  
Early Miocene ◽  
Queen Charlotte Islands ◽  
The Pacific ◽  
New Evidence

Recent palynological, megafaunal, and intrusive evidence from a section low in the Skonun Formation in the Cinola deposit on Graham Island indicates that it was deposited in the late Early Miocene, and that the age of the Skonun ranges up to the early Middle Miocene in outcrop sections on northeastern Graham Island. Correlations are made with several Miocene series of the Pacific Northwest and Alaska.

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