Some microsporidia found in certain fishes and insects in eastern Canada

Parasitology ◽  
1941 ◽  
Vol 33 (2) ◽  
pp. 186-208 ◽  
Author(s):  
H. B. Fantham ◽  
Annie Porter ◽  
L. R. Richardson
Keyword(s):  
North America ◽  
Pimephales Promelas ◽  
Original Description ◽  
First Record ◽  
Pieris Brassicae ◽  
Osmerus Mordax ◽  
Eastern Canada ◽  
New Host ◽  
North American Continent ◽  
The North

An account is given of some Microsporidia found in certain fishes and insects in eastern Canada, among which are new species of Nosema, Perezia and Gurleya.Nosema pimephales n.sp. produces large cysts or tumours in the abdomen of Pimephales promelas, one out of a large number from Lake Guindon, Province of Quebec, being infected.Nosema branchiale Nemeczek has been observed from a cod, Gadus callarias. The organism is shown to be a Nosema, though the incomplete original description has caused doubts as to whether some other genus was involved. Further details are now given.Nosema apis Zander and N. bombi Fantham & Porter have been found in Canada in hive-bees and humble-bees respectively, the latter being recorded from a new host, Bombus vagans.Glugea hertwigi n.var. canadensis is described from Osmerus mordax from Lake Edward.Perezia aeschnae n.sp. has been found in nymphs of the large dragonfly, Aeschna grandis, collected near Montreal and is described and illustrated.Perezia legeri Paillot has been observed in larvae of Pieris brassicae.These appear to be the first records of Perezia from insects in North America, and the zoogeographical distribution of the genus is extended to the Odonata.Gurleya aeschnae n.sp, is described from a nymph of Aeschna grandis. It is the first species of Gurleya to be described from the Odonata and the first record of the genus from the North American continent.Thelohania corethrae Schuberg & Rodriguez is described from the larvae of Chaoborus flavicans. Measurements of the parasite, which were lacking in the original description, are now supplied.Thelohania bracteata from larvae of Simulium bracteatum and larvae and one adult S. venustum and Thelohania fibrata from larvae of Simulium venustum are recorded from places in the Province of Quebec. The need of reinvestigation of the species of Thelohania from various Simulium and the possibility of there being but one species, Thelohania varians Debaisieux, are indicated.Thelohania legeri Hesse is recorded as a parasite of larvae of Anopheles punctipennis in Quebec Province and of A. gambiae in Zululand. It is probably the most widely distributed species of Thelohania, occurring in Anophelines in Europe, Asia, Africa and North America.Some general remarks regarding zoogeographical distribution, habitat, host-specificity and possible origin of species and varieties in connexion with Gurleya, Perezia and Thelohania are presented.

The species of Thecaphora on Compositae in North America

1982 ◽  
Vol 60 (8) ◽  
pp. 1512-1522 ◽  
Author(s):  
Rubén Durán
Keyword(s):  
New Species ◽  
North America ◽  
North American ◽  
Morphological Characteristics ◽  
American Continent ◽  
Bright Field ◽  
New Host ◽  
North American Continent ◽  
The North ◽  
Scanning Electron

Five new species of Thecaphora collected in Mexico are described, some of which are parasitic on genera of Compositae not previously reported as hosts. Species of Thecaphora on Compositae for the North American continent now total 11. New species include Thecaphora denticulata, T. heliopsidis, T. hennenea, T. melampodii, and T. neo-mexicana. New host genera for North America include Bidens, Heliopsis, and Melampodium. Morphological characteristics of Thecaphora species and taxonomic criteria to delimit them are discussed. Keys to the species, interpretations of spore ball morphology and spore sculpturing, and scanning electron and bright-field micrographs are presented.

NOTES ON A RARE WOODWASP, XIPHYDRIA CANADENSIS (HYMENOPTERA: XIPHYDRIIDAE)

1979 ◽  
Vol 111 (8) ◽  
pp. 971-971
Author(s):  
W. J. Crins
Keyword(s):  
North America ◽  
Original Description ◽  
First Record ◽  
Single Female ◽  
Northeastern North America ◽  
The North ◽  
North Side ◽  
Provincial Park

The woodwasp, Xiphydria canadensis Provancher, is a rare insect restricted to northeastern North America. Provancher (1875) based his original description on a single female collected at St. Hyacinthe, Quebec. In his recent revision, Smith (1976) saw only five females. On 7 August 1977, I collected a specimen of this large and distinctive species on the north side of Hwy. 60, at Mile 12.7, just west of the Park Museum in Algonquin Provincial Park, Ontario. This collection constitutes the first record for this species in Ontario.

scholarly journals New oversize troglobitic species of Campodeidae in Japan (Diplura)

2018 ◽  
Vol 27 ◽  
pp. 53-73 ◽  
Author(s):  
Alberto Sendra ◽  
Kazunori Yoshizawa ◽  
Rodrigo Lopes Ferreira
Keyword(s):  
North America ◽  
Endemic Species ◽  
Korean Peninsula ◽  
First Record ◽  
Japanese Species ◽  
Sympatric Distribution ◽  
The North ◽  
Japanese Islands

Two new oversize troglobitic species of diplurans campodeids, Pacificampadaidarabotchi Sendra, sp. n. and Pacificampanipponica Sendra, sp. n., found in three caves in two southern Japanese islands are described. It is the first record of cave-dwelling Diplurans from Japan and more specifically these are two Campodeinae of Pacificampa Chevrizov, 1978 formally known in continental Asia with three cave-dwelling species described in Russia and China near the north of the Korean peninsula. In P.daidarabotchisp. n., in addition to its oversized body, the longest ever known in campodeids family, it shows as its main differential taxonomical feature the absence of lp metanotal macrosetae. P.nipponicasp. n. is much closer to continental Pacificampa species but it shows differences in the urotergal macrosetae formula. Both Japanese species have clear troglomorphic features related with their elongated body and appendages and an increase in number and complexity of the sensorial antennal equipment with unique olfactory chemoreceptors. Two biogeographical remarks are inferred: P.nipponicasp. n., has been found in two islands that were connected during the glacial age and P.daidarabotchisp. n. lives in a single cave near another where P.nipponicasp. n. dwells which allowing to suggest a sympatric distribution; Pacificampa seems to be related with Eumesocampa, a genus from North-America, as a consequence of the Holarctic connection between Asia and America. The interests of P.daidarabotchisp. n. and P.nipponicasp. n. as endemic species in addition to their biogeographical importance should be taken into consideration to ensure better management of the three touristic caves where they dwell and especially the protection of Mejido-do cave, the only location of the large P.daidarabotchisp. n. near to an active quarry.

scholarly journals Do Barrow's Goldeneyes, Bucephala islandica, Breed South of the St. Lawrence Estuary in the Gaspé Peninsula, Eastern Canada?

2010 ◽  
Vol 124 (2) ◽  
pp. 179
Author(s):  
Jean-François Ouellet ◽  
Pierre Fradette ◽  
Isabel Blouin
Keyword(s):  
North America ◽  
Breeding Season ◽  
Breeding Habitat ◽  
Eastern North America ◽  
Eastern Canada ◽  
Lawrence Estuary ◽  
North Shore ◽  
The North ◽  
Bucephala Islandica ◽  
St Lawrence Estuary

We report the first observations of Barrow's Goldeneyes south of the St. Lawrence estuary in typical breeding habitat during the breeding season. Until recently, the confirmed breeding locations for the species in Eastern North America were all located on the north shore of the Estuary and Gulf of St. Lawrence.

scholarly journals Nitrogen oxides in the boundary layer and free troposphere at the Mt. Bachelor Observatory

2010 ◽  
Vol 10 (13) ◽  
pp. 6043-6062 ◽  
Author(s):  
D. R. Reidmiller ◽  
D. A. Jaffe ◽  
E. V. Fischer ◽  
B. Finley
Keyword(s):  
Boundary Layer ◽  
North America ◽  
Gulf Of Alaska ◽  
Aleutian Islands ◽  
Transport Pathways ◽  
North American Continent ◽  
Mixing Ratios ◽  
The North ◽  
Synoptic Conditions ◽  
The Difference

Abstract. Nitrogen oxide (NOx=NO+NO2) observations were made at the Mt. Bachelor Observatory in central Oregon, USA (MBO; 2.73 km above sea level) during one autumn and three springtime (15 April–20 May) periods. This is the first study to discuss interannual variability in NOx for this region. NOx concentrations (mean±1σ) for spring 2007, 2008 and 2009 were 119±65, 117±65, and 91±54 pptv, respectively. The difference in mean mixing ratios between 2007 and 2008 is not statistically significant, whereas the difference between these years and 2009 is significant (p<0.01). We attribute the decline in NOx from 2007–2008 to 2009 to changes in free tropospheric synoptic conditions over the Northeast Pacific and trans-Pacific transport pathways during spring 2009. In 2009, there were: (1) higher geopotential heights over the Gulf of Alaska, (2) warmer temperatures over the Aleutian Islands/Gulf of Alaska and (3) much weaker winds throughout the North Pacific. During the autumn 2008 campaign, NOx concentrations (mean±1σ) were 175±548 pptv. The highly non-normal distribution of data (skewness coefficient of 19.1 vs. 2.5, 2.8 and 2.4 in spring 2007, 2008 and 2009, respectively) resulted from periods of very high NOx levels. Using MODIS Rapid Response (Aqua and Terra) results, we show that during autumn our site can be heavily influenced by wildfires in western North America. This is in contrast to springtime, when the smaller positive (i.e., right) tail of the NOx distribution is driven largely by Asian long-range transport (ALRT) events. We developed a novel means of segregating boundary layer (BL)-influenced vs. free tropospheric (FT) air. During spring 2008 we collected "chairlift soundings" of temperature, relative humidity and pressure in an effort to better understand the diurnal pattern of a BL influence at our summit station. Results from this experiment revealed that, on average, a BL influence begins around 10:00 PDT (UTC – 07:00 h) in spring. Using this information to isolate FT air, we characterize probable pollution sources and synoptic conditions for the top 20 FT NOx events over three spring campaigns. Half (n=10) of these 20 events were determined to be "Imported" events characterized by anomalously: (1) high geopotential heights off the west coast of North America, (2) warm temperatures stretching from the Aleutian Islands to Baja California, and (3) strong southwesterly winds in the Asian outflow region. Five events exhibited an influence from the North American continent. These events are characterized by very strong cyclonic behavior off the northwestern USA coast.

scholarly journals Nitrogen oxides in the boundary layer and free troposphere at the Mt. Bachelor Observatory

2010 ◽  
Vol 10 (2) ◽  
pp. 5751-5801 ◽  
Author(s):  
D. R. Reidmiller ◽  
D. A. Jaffe ◽  
E. V. Fischer ◽  
B. Finley
Keyword(s):  
Boundary Layer ◽  
North America ◽  
Gulf Of Alaska ◽  
Aleutian Islands ◽  
Transport Pathways ◽  
North American Continent ◽  
Mixing Ratios ◽  
The North ◽  
Synoptic Conditions ◽  
The Difference

Abstract. Nitrogen oxide (NOx = NO + NO2) observations were made at the Mt. Bachelor Observatory in central Oregon, USA (MBO; 2.73 km above sea level) during one autumn and three springtime (15 April–20 May) periods. This is the first study to discuss interannual variability in NOx for this region. NOx concentrations (mean ±1σ) for spring 2007, 2008 and 2009 were 119±65, 117±65, and 91±54 pptv, respectively. The difference in mean mixing ratios between 2007 and 2008 is not statistically significant, whereas the difference between these years and 2009 is significant (p<0.01). We attribute the decline in NOx from 2007–2008 to 2009 to changes in free tropospheric synoptic conditions over the Northeast Pacific and trans-Pacific transport pathways during spring 2009. In 2009, there were: (1) higher geopotential heights over the Gulf of Alaska, (2) warmer temperatures over the Aleutian Islands/Gulf of Alaska and (3) much weaker winds throughout the North Pacific. During the autumn 2008 campaign, NOx concentrations (mean ±1σ) were 175±548 pptv. The highly non-normal distribution of data (skewness coefficient of 19.1 vs. 2.5, 2.8 and 2.4 in spring 2007, 2008 and 2009, respectively) resulted from periods of very high NOx levels. Using MODIS Rapid Response (Aqua and Terra) results, we show that during autumn our site can be heavily influenced by wildfires in western North America. This is in contrast to springtime, when the smaller positive (i.e., right) tail of the NOx distribution is driven largely by Asian long-range transport (ALRT) events. We developed a novel means of segregating boundary layer (BL)-influenced vs. free tropospheric (FT) air. During spring 2008 we collected "chairlift soundings" of temperature, relative humidity and pressure in an effort to better understand the diurnal pattern of a BL influence at our summit station. Results from this experiment revealed that, on average, a BL influence begins around 10:00 PDT (UTC – 7 h) in spring. Using this information to isolate FT air, we characterize probable pollution sources and synoptic conditions for the top 20 FT NOx events over three spring campaigns. Half (n = 10) of these 20 events were determined to be "Imported" events characterized by anomalously: (1) high geopotential heights off the west coast of North America, (2) warm temperatures stretching from the Aleutian Islands to Baja California, and (3) strong southwesterly winds in the Asian outflow region. Five events exhibited an influence from the North American continent. These events are characterized by very strong cyclonic behavior off the northwestern USA coast.

Phytophthora ramorum Identified Infecting Eastern Teaberry (Gaultheria procumbens) Plants Shipped to Oregon

2014 ◽  
Vol 15 (1) ◽  
pp. 9-10 ◽  
Author(s):  
N. K. Osterbauer ◽  
S. Lane ◽  
A. Trippe
Keyword(s):  
United States ◽  
North America ◽  
Phytophthora Ramorum ◽  
Eastern North America ◽  
The South ◽  
New Host ◽  
Koch’S Postulates ◽  
Understory Species ◽  
The North ◽  
Gaultheria Procumbens

These results confirm the pathogenicity of Phytophthora ramorum on eastern teaberry and complete Koch's Postulates for this new host. Eastern teaberry is an understory species native to eastern North America, with its range extending from Alabama and Georgia (United States) in the south to Manitoba and Quebec (Canada) in the north. Infected nursery plants represent a potential pathway for P. ramorum introduction to this region. Accepted for publication 22 November 2013. Published 22 January 2014.

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