THE LARVA AND ADULT BIOLOGY OF RHINOSIMUS VIRIDIAENEUS (COLEOPTERA: SALPINGIDAE)

1981 ◽  
Vol 113 (12) ◽  
pp. 1055-1060 ◽  
Author(s):  
Anne T. Howden ◽  
Henry F. Howden
Keyword(s):  
British Columbia ◽  
Vancouver Island ◽  
Alnus Rubra ◽  
Outer Bark ◽  
Red Alder ◽  
Feeding Site ◽  
Inner Bark ◽  
First Time

AbstractAdults and larvae of Rhinosimus viridiaeneus Randall observed on Vancouver Island, British Columbia, prefer the inner bark of dead branches of red alder (Alnus rubra Bong.) for food. When feeding, the flattened elongated rostrum of the adult is inserted between the papery outer bark and the cambium. The rostrum is also used to prod or flip intruding Rhinosimus away from a feeding site. The larva is described for the first time.

scholarly journals Phosphorus Additions Increase the Early Growth of Red Alder (Alnus rubra Bong.) on Vancouver Island

2007 ◽  
Vol 22 (2) ◽  
pp. 116-123 ◽  
Author(s):  
Kevin R. Brown ◽  
P.J. Courtin
Keyword(s):  
Vancouver Island ◽  
Alnus Rubra ◽  
Moisture Regime ◽  
P Availability ◽  
Red Alder ◽  
Single Tree ◽  
Nutrient Additions ◽  
Soil Moisture Regime ◽  
Triple Super Phosphate ◽  
Foliar Concentrations

Abstract The effects of nutrient additions on growth of the red alder (Alnus rubra Bong.) are not well known. We examined the growth and nutritional responses of 10 young (0–4 years old at time of fertilization) red alder plantations on eastern Vancouver Island to additions of phosphorus (P), added as triple super phosphate, and a blended fertilizer (F) containing elements other than nitrogen (N), P, and calcium (Ca). Site fertility classes ranged from poor to very rich and soil moisture regime classes ranged from moderately dry to very moist. Nutrients were added in single-tree plots and responses were measured for up to 3 years after fertilization. In plantations fertilized within 1 year of planting, P additions increased heights (average of 17%), basal diameters (28%), and stem volumes (68%) over a 3-year period and increased 1st-year foliar concentrations of P, N, and S. The fertilizer supplying other elements also increased concentrations of N and S, along with potassium (K), boron (B), zinc (Zn), and manganese (Mn), but increased volume by only 16%. These data suggest that deficiencies of P are more likely to limit the growth of young red alder than are deficiencies of other elements. Older plantations (more than 2 years postplanting) were less responsive to fertilization than were younger plantations (less than 2 years postplanting). Growth of young red alder appears limited by P availability when soil Bray-P and foliar P concentrations are less than approximately 12 mg kg−1 and 2 g kg−1, respectively.

Mycorrhizal status of some plants of southwestern British Columbia

1988 ◽  
Vol 66 (10) ◽  
pp. 1924-1928 ◽  
Author(s):  
Shannon M. Berch ◽  
Sharmin Gamiet ◽  
Elisabeth Deom
Keyword(s):  
British Columbia ◽  
Plant Species ◽  
Arbuscular Mycorrhizal ◽  
Vancouver Island ◽  
University Of British Columbia ◽  
Mycorrhizal Status ◽  
Vesicular Arbuscular ◽  
First Time

During the summer of 1986, plants were collected from University of British Columbia Research Farm at Oyster River, Vancouver Island, and their mycorrhizal status was determined. Of the 60 plant species examined, 44 were always vesicular–arbuscular mycorrhizal, 13 were always nonmycorrhizal, and three varied. Nonmycorrhizal plants were found in species belonging to the following families: Araceae, Caryophyllaceae, Compositae, Cruciferae, Gramineae, Onagraceae, Polygonaceae, and Portulacaceae. The mycorrhizal status of 15 plant species is reported here for the first time. Of these, the nonmycorrhizal species included Lysichitum americanum (Araceae), Stellaria simcoei, Stellaria calycantha (Caryophyllaceae), and Epilobium minutum (Onagraceae), and the mycorrhizal species included Adenocaulon bicolor, Eriophyllum lanatum var. achillaeoides, Grindelia squarrosa var. serrulata (Compositae), Poa gracillima (Gramineae), Brodiaea coronaria, Disporum hookerii (Lilaceae), Polypodium glycyrrhiza (Polypodiaceae), Ranunculus uncinatus (Ranunculaceae), Rosa nutkana var. nutkana (Rosaceae), Collinsia parviflora (Scrophulariaceae), and Viola glabella (Violaceae).

scholarly journals Slender False Brome (Brachypodium sylvaticum, Poaceae), an Invasive Grass New to Ontario, Canada

2011 ◽  
Vol 125 (3) ◽  
pp. 235 ◽  
Author(s):  
Brian M. Miller ◽  
Robert J. Aitken ◽  
Michael J. Oldham ◽  
Anton A. Reznicek
Keyword(s):  
British Columbia ◽  
Pacific Northwest ◽  
Vancouver Island ◽  
Invasive Grass ◽  
Eastern Canada ◽  
Brachypodium Sylvaticum ◽  
Southern Ontario ◽  
First Time ◽  
The U.S

Brachypodium sylvaticum, Slender False Brome, an invasive Eurasian grass, is reported for the first time in Ontario and eastern Canada from Grey County, southern Ontario. The only previous Canadian record is from Vancouver Island, British Columbia. The species is widespread in the U.S. Pacific Northwest, where it is spreading aggressively throughout much of western Oregon. In the eastern U.S.A., known populations are few and localized, although the species will likely spread.

First North American records for Heterarthrus vagans (Hymenoptera: Tenthredinidae), a Palaearctic leafmining sawfly of alder

2010 ◽  
Vol 142 (2) ◽  
pp. 181-187 ◽  
Author(s):  
Leland M. Humble
Keyword(s):  
British Columbia ◽  
North American ◽  
Alnus Rubra ◽  
Preliminary Survey ◽  
Red Alder ◽  
Diagnostic Characters ◽  
Two Generations ◽  
Fraser Valley

AbstractThe discovery in southwestern British Columbia of widespread established populations of the Palaearctic leafminer Heterarthrus vagans (Fallén) feeding on native red alder, Alnus rubra Bong. (Betulaceae), is reported. A preliminary survey suggests that it is currently confined to the Fraser Valley west of Hope, its distribution extending north along Howe Sound almost to Squamish. It was not found in the greater Victoria area. No other regions of the province have been surveyed. This introduced sawfly completes at least two generations a year. Diagnostic characters to aid the recognition of adults and feeding larvae of H. vagans and a modified key to adult Heterarthrinae on Betulaceae are provided.

Ramellogammarus vancouverensis Bousfield (Amphipoda) as an intermediate host for salmonid parasites in British Columbia

1982 ◽  
Vol 60 (5) ◽  
pp. 1100-1104 ◽  
Author(s):  
L. Margolis ◽  
F. Moravec
Keyword(s):  
British Columbia ◽  
North America ◽  
Intermediate Host ◽  
First Record ◽  
Vancouver Island ◽  
Pacific Region ◽  
Salmonid Fishes ◽  
Swim Bladder ◽  
The Pacific ◽  
First Time

Larvae of the nematode Salvelinema walkeri (Ekbaum, 1935) and metacercariae of the trematode Crepidostomum metoecus (Braun, 1900) are recorded for the first time from the amphipod Ramellogammarus vancouverensis Bousfield, 1979 (Amphipoda: Gammaridae).The infected amphipods were collected from De Mamiel Creek, southwestern Vancouver Island, British Columbia. Brief descriptions are given of both parasites, which as adults live in salmonid fishes. This report provides the first record of an intermediate host for S. walkeri, a swim-bladder parasite of salmonids of the Pacific region of North America, and of an intermediate host of a Crepidostomum species in the Pacific region of Canada.

Lipophilic Extractives of the Inner and Outer Barks of Eucalyptus globulus

Holzforschung ◽  
2002 ◽  
Vol 56 (4) ◽  
pp. 372-379 ◽  
Author(s):  
C. S. R. Freire ◽  
A. J. D. Silvestre ◽  
C. Pascoal Neto ◽  
J.A.S. Cavaleiro
Keyword(s):  
Mass Spectrometry ◽  
Eucalyptus Globulus ◽  
Gas Chromatography Mass Spectrometry ◽  
Bark Extract ◽  
Chemical Compositions ◽  
Outer Bark ◽  
Inner Bark ◽  
Triterpenic Acids ◽  
First Time ◽  
Acid Esters

Summary The chemical compositions of the dichloromethane extracts of inner and outer barks of E. globulus were studied by gas chromatography-mass spectrometry. The two fractions show very different chemical compositions: triterpenic acids, such as betulinic, ursolic and oleanolic acids, were the major components of the outer bark extract, whereas β-sitosterol and β-amirin along with palmitic, linoleic and oleic acids predominate in the inner bark extract. Several α-and β-hydroxy fatty acids, recently reported for the first time as E. globulus wood components, were also identified in the outer and inner barks. In the outer bark extract, minor amounts of ferulic acid esters, also previously reported to occur in E. globulus wood were identified. In general, the inner bark lipophilic extractives resemble more closely that of E. globulus wood.

NEW SPECIES IN THE GENERA MINILIMOSINA ROHÁĈEK AND PHTHITIA ENDERLEIN (DIPTERA: SPHAEROCERIDAE) FROM ANCIENT SITKA SPRUCE (PINACEAE) FOREST

1999 ◽  
Vol 131 (6) ◽  
pp. 707-713
Author(s):  
S.A. Marshall ◽  
N.N. Winchester
Keyword(s):  
British Columbia ◽  
New Species ◽  
Related Species ◽  
Sitka Spruce ◽  
Vancouver Island ◽  
Picea Sitchensis ◽  
Two New Species ◽  
First Time ◽  
Malaise Traps

AbstractDiptera caught in malaise traps set in forests of Sitka spruce, Picea sitchensis (Bon.) Carrière, in the Carmanah Valley, on Vancouver Island, British Columbia, included two new species of Sphaeroceridae. Minilimosina sitka Marshall sp.nov. and Phthitia squamosa Marshall sp.nov. are described for the first time and compared with related species. Fourteen other sphaerocerid species caught with these species are listed.

The plainfin midshipman’s soundscape at two sites around Vancouver Island, British Columbia

2018 ◽  
Vol 603 ◽  
pp. 189-200 ◽  
Author(s):  
WD Halliday ◽  
MK Pine ◽  
APH Bose ◽  
S Balshine ◽  
F Juanes
Keyword(s):  
British Columbia ◽  
Vancouver Island
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