OVERWINTERING AREAS AND MIGRATORY ROUTES OF THE MONARCH BUTTERFLY (DANAUS P. PLEXIPPUS, LEPIDOPTERA: DANAIDAE) IN NORTH AMERICA, WITH SPECIAL REFERENCE TO THE WESTERN POPULATION

1977 ◽  
Vol 109 (12) ◽  
pp. 1583-1589 ◽  
Author(s):  
F. A. Urquhart ◽  
N. R. Urquhart
Keyword(s):  
North America ◽  
Special Reference ◽  
Monarch Butterfly ◽  
The Other ◽  
Migration Routes ◽  
Western Population ◽  
Sierra Madre ◽  
Migratory Routes ◽  
First Time

AbstractAs a result of alar tagging migrating specimens of the monarch butterfly (Danaus p. plexippus L.) in North America over a period of 25 years, it was possible to plot the migration routes establishing two large overwintering colonies, one located in California and the other in mountains of the Sierra Madré Occidentale in Mexico. Photographs of the two overwintering populations are presented together with release–recapture lines showing the direction of migration from breeding areas to the two overwintering sites. Data, presented for the first time, show the migration routes of the Western population from the breeding areas in the mountains and west of the mountains to California.

scholarly journals Contribution to identify the causal gents of Dutch elm disease in the Czech Republic

2008 ◽  
Vol 43 (No. 4) ◽  
pp. 142-145 ◽  
Author(s):  
M. Dvořák ◽  
M. Tomšovský ◽  
L. Jankovský ◽  
D. Novotný
Keyword(s):  
Czech Republic ◽  
North America ◽  
Molecular Biology ◽  
The Other ◽  
Dutch Elm Disease ◽  
The Czech Republic ◽  
Ophiostoma Ulmi ◽  
Other Hand ◽  
Subspecies Level ◽  
First Time

This study provides new data on Dutch elm disease in the Czech Republic. <I>Ophiostoma novo-ulmi</I> is reported for the first time in the area of the Czech Republic, as well as both subspecies ssp. <I>novo-ulmi</I> (indigenous in the area of the Ukraine and Moldavia), and ssp. <I>Americana</I> indigenous in North America. The majority of the recorded strains belonged to <I>O. n.-u.</I> ssp. <I>novo-ulmi</I>, while <I>O. n.-u.</I> ssp. <I>Americana</I> and hybrids of these two subspecies were found less frequently. On the other hand, <I>Ophiostoma ulmi</I> was not found at all in the investigated samples. Identification on the subspecies level was performed by methods of molecular biology, i.e. PCR and RFLP of gene regions<I> cu</I> and <I>col1</I>.

Early Permian corals from Arrow Canyon, Clark County, Nevada

1993 ◽  
Vol 67 (6) ◽  
pp. 935-945 ◽  
Author(s):  
Edward C. Wilson ◽  
Ralph L. Langenheim
Keyword(s):  
North America ◽  
The Other ◽  
Lower Permian ◽  
Shelf Area ◽  
Early Permian ◽  
Western North America ◽  
Clark County ◽  
Canyon Range ◽  
First Time ◽  
Tabulate Corals

Rugose and tabulate corals from the Lower Permian (Wolfcampian) part of the Bird Spring Group in Arrow Canyon, Arrow Canyon Range, Clark County, Nevada, comprise eight species in eight genera. Stylastraea rowetti n. sp. is the first unequivocal record of this genus west of Texas in North America. Heritschiella girtyi, the only endemic North American waagenophyllid genus and species, is recorded outside Kansas for the first time. Paraheritschioides stevensi formerly was known only from northern California. The other species also occur elsewhere in the Permian of Nevada and nearby. This southeast Nevada shelf area has the first known intermixture of corals from the Durhaminid Coral Province and subprovinces of far western North America and the Cyathaxonid Coral Province of middle and southwestern North America.

First Report of Powdery Mildew on Potato Caused by Leveillula taurica in North America

2004 ◽  
Vol 5 (1) ◽  
pp. 15 ◽  
Author(s):  
Dean A. Glawe ◽  
Lindsey J. du Toit ◽  
Gary Q. Pelter
Keyword(s):  
North America ◽  
Middle East ◽  
Powdery Mildew ◽  
Russet Burbank Potato ◽  
Russet Burbank ◽  
The Other ◽  
Leveillula Taurica ◽  
Powdery Mildew Fungi ◽  
First Time ◽  
Made In

In August 2004, examination of powdery mildew-infected ‘Russet Burbank’ potato leaves from a furrow-irrigated field in Grant Co., WA, revealed two powdery mildew fungi, one referable to Erysiphe orontii and the other to Leveillula taurica (Lév.) G. Arnaud. Discovery of the two species sporulating together on diseased leaves is consistent with an observation made in the Middle East. This report documents, for the first time, L. taurica on potato in N. America and provides information on distinguishing it from E. orontii. Accepted for publication 9 December 2004. Published 14 December 2004.

XVI.—Cytological Studies of Melaniidæ (Mollusca) with Special Reference to Parthenogenesis and Polyploidy. I. Oögenesis of the Parthenogenetic Species of Melanoides (Prosobranchia-Gastropoda)

1958 ◽  
Vol 63 (2) ◽  
pp. 341-352 ◽  
Author(s):  
Joseph Jacob
Keyword(s):  
Special Reference ◽  
Chromosome Numbers ◽  
Chiasma Formation ◽  
The Other ◽  
Animal Kingdom ◽  
Cell Divisions ◽  
Metaphase Stage ◽  
Receptaculum Seminis ◽  
First Time ◽  
Potamopyrgus Jenkinsi

SynopsisA Study of the oögenesis and maturation in four species of melaniid snails, viz. Melanoides tuberculatus—diploid race 2n = 32, M. tuberculatus—polyploid race with 90-94 chromosomes, M. lineatus—polyploid with 71-73 chromosomes and M. scabra—polyploid with 76-78 chromosomes, showed these species to be thelytokous. These are instances of ameiotic parthenogenesis with two equational maturation divisions and are recorded for the first time in molluscs, the only other known instance in the animal kingdom being shown by the cockroach, Pycnoscelus surinamensis. The other parthenogenetic molluscs known so far, viz. Potamopyrgus jenkinsi and Campeloma rufum are also of the ameiotic type but have a single maturation division. No males were ever found in the diploid race of M. tuberculatus and in M. scabra. In the polyploid race of M. tuberculatus and in M. lineatus sporadic males occur, forming about 3 per cent of the population in the former and 0·01 per cent in the latter. Further evidence for ameiotic parthenogenesis is provided by the complete absence of sperms in the receptaculum seminis and brood pouch and also by the absence of sperm elements or any fusion of nuclei in the egg. The chromosome numbers in the different species have been determined from maturation metaphase and have been checked from first cleavage metaphase. Polyploidy is associated with parthenogenesis in three of these species.Oögonial cell divisions are generally absent. Only three oögonial metaphase plates were seen in the diploid race of M. tuberculatus and one in M. lineatus although a very large number of preparations of the ovary were examined. The author holds the view that the maturation prophase is the continuation of the oögonial early metaphase stage without intervening metaphase, anaphase and telophase. The prochromosomes seen in proleptotene stage are already split and the succeeding stages are characterized by the absence of zygotene, pachytene or any pairing and chiasma formation. Each split chromosome behaves functionally like a bivalent throughout maturation prophase and separates into daughter chromosomes at the first division. The second division is equational as in normal maturation.

REARING AND IMMATURE STAGES OF THE CLUSTER FLY (POLLENIA RUDIS) (DIPTERA: CALLIPHORIDAE) IN ONTARIO

1972 ◽  
Vol 104 (4) ◽  
pp. 567-576 ◽  
Author(s):  
W. Yahnke ◽  
John A. George
Keyword(s):  
Life History ◽  
North America ◽  
Close Association ◽  
The Other ◽  
Immature Stages ◽  
Periodic Field ◽  
First Time ◽  
Allolobophora Chlorotica

AbstractThe preferred host of the cluster fly, Pollenia rudis Fab., in Ontario is reported to be the earthworm Eisenia rosea Sav. Periodic field digging revealed the immature stages of P. rudis feeding, or in close association with, E. rosea. In addition P. rudis was reared in the laboratory on E. rosea but could not be reared on any of the other species of earthworm found in the field.For the first time in North America the complete life history, along with each of the immature stages of P. rudis, is described. The differences between P. rudis from North America and those from France are indicated.Finally, the authors speculate that there are two strains, or species, of P. rudis in France: one is host-specific to the earthworm Allolobophora chlorotica Sav. and the other to E. rosea. Only the strain with E. rosea as its preferred host has as yet been reported from Canada.

The Cultivation of “Culture” in the Moroccan Amazigh Movement

2009 ◽  
Vol 43 (2) ◽  
pp. 168-177 ◽  
Author(s):  
Paul Silverstein
Keyword(s):  
North America ◽  
North Africa ◽  
Northern Africa ◽  
The Other ◽  
Northern Canada ◽  
The World ◽  
Different Cultures ◽  
First Time

In the opening sequence of a 2008 documentary, Ni Sauvage, Ni Barbare (Neither Savage Nor Barbaric), co-produced by Québecois and Moroccan television, the director Roger Cantin introduces his subjects over images of art, ritual, and nature that alternate between northern Canada and northern Africa: Fouad Lahbib is a painter from Morocco. He is Berber, he is Amazigh, he is an autochthon from North Africa. Florent Valiant is a singer from Quebec. He is Innu, he is Amerindian, he is an autochthon from North America. At first glance, they come from completely different cultures. Their ancestral lands are far apart, separated by an ocean; they don’t look at all alike. One people travels by rivers and through immense forests. The other lives with heat and drought. What do these two men, Fouad Lahbib and Florent Vallant, have in common? They belong to marginalized cultures whose extinction was precipitated, whose assimilation was desired, and whose language and customs were silenced. Were they really savages and barbarians? Or simply people who approach the world with a spirit of harmony, sharing, and solidarity? Meeting each other for the first time, Fouad Lahbib and Florent Vallant will learn with us how much all men are alike, wherever they may live.

Les lichens sur serpentine et amphibolite du plateau du mont Albert, Gaspésie, Québec

1988 ◽  
Vol 66 (5) ◽  
pp. 851-862 ◽  
Author(s):  
Luc Sirois ◽  
François Lutzoni ◽  
Miroslav M. Grandtner
Keyword(s):  
North America ◽  
Vascular Plants ◽  
The Other ◽  
Lichenicolous Fungi ◽  
Ecological Influence ◽  
Saxicolous Lichens ◽  
First Time ◽  
Terricolous Lichen ◽  
Lichen Flora

At Mount Albert, Quebec, many taxa are found exclusively on either serpentine or amphibolite contiguous formations. This exclusivity is clearly more noticeable within the saxicolous lichens than within the other groups. Serpentine seems to be an unfavourable substratum for the growth of saxicolous lichens. There are more infrequent taxa on serpentine than on amphibolite. The saxicolous, muscicolous, and terricolous lichen flora and the lichenicolous fungi of the plateau include 202 taxa, most of which have an arctic affinity. Of these taxa, 36 are recorded for the first time in Quebec, 16 in Canada and, 11 in North America. The ecological influence of serpentine on the lichens is, in many aspects, similar to that observed on vascular plants.

VERNAL MIGRATION OF THE MONARCH BUTTERFLY (DANAUS P. PLEXIPPUS, LEPIDOPTERA: DANAIDAE) IN NORTH AMERICA FROM THE OVERWINTERING SITE IN THE NEO-VOLCANIC PLATEAU OF MEXICO

1979 ◽  
Vol 111 (1) ◽  
pp. 15-18 ◽  
Author(s):  
F. A. Urquhart ◽  
N. R. Urquhart
Keyword(s):  
North America ◽  
Monarch Butterfly ◽  
Migration Routes ◽  
Breeding Area ◽  
Eastern Population ◽  
Breeding Grounds ◽  
Overwintering Site ◽  
Do So

AbstractThe vernal migration routes of the eastern population of the monarch butterfly (Danaus p. plexippus L.) in North America were plotted from data resulting from the recapture of migrants alar tagged in the overwintering site of the Neo-volcanic Plateau of Mexico. One migrant, which had been alar tagged at Decorah, Iowa, on 3 September 1973, and recaptured 7 months later on 8 April 1974 at Richmond, Texas, led to the conclusion that this particular migrant had flown to the Mexican overwintering site and was recaptured on its return vernal flight. This recapture also gave data indicating that it was not returning to the original breeding area, from which it is concluded that although some migrants may return to the original breeding grounds many may not do so.

Judicial Independence in British North America, 1825–67: Constitutional Principles, Colonial Finances, and the Perils of Democracy

2016 ◽  
Vol 34 (3) ◽  
pp. 689-742
Author(s):  
Jim Phillips
Keyword(s):  
North America ◽  
Prince Edward Island ◽  
Judicial Independence ◽  
The Other ◽  
Upper Canada ◽  
Lower Canada ◽  
British North America ◽  
American Colonies ◽  
British North American ◽  
First Time

It is well known that “formal” judicial independence—appointment on good behavior rather than at pleasure—was established in Britain with the 1701 Act of Settlement, and, like many other aspects of the English constitution, not exported to the colonies of either the First or the Second Empire. Its absence formed one of the allegations against the crown in the American Declaration of Independence, and the Constitution of the New Republic accordingly included a federal judicial independence provision. British imperial policy in North America after the Revolution regarding judges continued as before, so that formal judicial independence was not established until 1834, and then only in Upper Canada (now Ontario). In the other three principal British North American colonies this was later still. What is now Quebec (Lower Canada) received good behavior appointments in 1843, and Nova Scotia in 1848. In the other colonies that joined the Canadian Confederation in 1867 (New Brunswick) or within a few years afterwards (British Columbia, Manitoba, and Prince Edward Island), good behavior appointments were introduced for the first time only when the colony joined Confederation.

Autumnal migration routes of the eastern population of the monarch butterfly (Danaus p. plexippus L.; Danaidae; Lepidoptera) in North America to the overwintering site in the Neovolcanic Plateau of Mexico

1978 ◽  
Vol 56 (8) ◽  
pp. 1759-1764 ◽  
Author(s):  
F. A. Urquhart ◽  
N. R. Urquhart
Keyword(s):  
North America ◽  
Central America ◽  
Great Plains ◽  
Monarch Butterfly ◽  
Migration Routes ◽  
Monarch Butterflies ◽  
Eastern Population ◽  
Extensive Field ◽  
Overwintering Site

Based upon numerous recaptures of alar-tagged migrating monarch butterflies, together with extensive field expeditions through various parts of North and Central America, the migrating routes of monarchs have been plotted with considerable accuracy.Five overwintering areas have been defined representing 13 loci of concentrations, in the Neovolcanic Plateau of Mexico.It appears that migrants from the breeding areas of the Great Plains region overwinter in the western mountains of Mexico and those from breeding areas east of the Great Plains region overwinter in the eastern mountains. The greatest concentration occurs in the central mountains and represents migrations from parts of the Great Plains regions and parts of the eastern regions.

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