scholarly journals Rapid Nestling Mortality in Arctic Peregrine Falcons due to the Biting Effects of Black Flies

ARCTIC ◽  
2016 ◽  
Vol 69 (3) ◽  
pp. 281 ◽  
Author(s):  
Alastair Franke ◽  
Vincent Lamarre ◽  
Erik Hedlin
Keyword(s):  
North America ◽  
Nest Site ◽  
Blood Feeding ◽  
Black Flies ◽  
Direct Effects ◽  
Falco Peregrinus ◽  
Peregrine Falcons ◽  
The Dead ◽  
Nestling Mortality

This note describes nestling mortality in Arctic Peregrine Falcons (Falco peregrinus tundrius) due to the biting effects of blood-feeding black flies (Diptera: Simuliidae). At a nest site near Rankin Inlet, Nunavut, Canada (62˚49′ N, 92˚05′ W), a brood of four nestlings died on 20 July 2013 from the direct effects of severe bites attributed to black flies. Within three hours of the onset of blood-feeding, black flies had caused widespread, uniformly distributed hemorrhagic coalescent lesions over the head and body of all nestlings. Approximately seven hours after the first flies appeared, the female falcon removed the carcasses of the dead nestlings from the nest. Nestlings at eight additional sites also suffered the effects of biting black flies in 2013, resulting in the deaths of 13 of 35 nestlings. A less pronounced outbreak also occurred in 2012 and resulted in the deaths of seven nestlings at four sites. No nestling mortality due to black flies has been documented in any other year from 1982 through 2015. To our knowledge, these observations document the northernmost lethal attack by ornithophilic black flies in North America.

scholarly journals Patterns of Memory in Askold Melnyczuk’s Novels as an Example of Ukrainian-American Émigré Fiction

2020 ◽  
Vol 47 (2) ◽  
pp. 125-137
Author(s):  
Marta Koval
Keyword(s):  
North America ◽  
20Th Century ◽  
European History ◽  
Family Stories ◽  
Traumatic Memories ◽  
The Past ◽  
History Of ◽  
The Dead ◽  
Definition Of

Although Ukrainian emigration to North America is not a new phenomenon, the dilemmas of memory and amnesia remain crucial in Ukrainian-American émigré fiction. The paper focuses on selected novels by Askold Melnyczuk (What is Told and Ambassador of the Dead) and analyzes how traumatic memories and family stories of the past shape the American lives of Ukrainian emigrants. The discussion of the selected Ukrainian-American émigré novels focuses on the dilemmas of remembering and forgetting in the construction of both Ukrainian and American narratives of the past. The voluntary amnesia of the Ame- rican-born Ukrainians in Melnyczuk’s novels confronts their parents’ dependence on the past and their inability to abandon it emotionally. Memories of ‘the old country’ make them, similarly to Ada Kruk, ambassadors of the dead. The expression becomes a metaphoric definition of those wrapped by their repressed, fragmentary and sometimes inaccessible memories. Crucial events of European history of the 20th century are inscribed and personalized in the older generation’s stories which their children are reluctant to hear. For them, their parents’ memories became a burden and a shame. Using the concept of transgenerational memory, the paper explores the challenges of postmemory, and eventually its failure. 

Peregrine Falcons in Urban North America

1996 ◽  
pp. 3-13 ◽  
Author(s):  
Tom J. Cade ◽  
Mark Martell ◽  
Patrick Redig ◽  
Gregory A. Septon ◽  
Harrison B. Tordoff
Keyword(s):  
North America ◽  
Peregrine Falcons

VII.—Note on Mr. I. C. Russell's Paper on the Jordan-Arabah and the Dead Sea

1888 ◽  
Vol 5 (11) ◽  
pp. 502-504
Author(s):  
Edward Hull
Keyword(s):  
North America ◽  
Rock Salt ◽  
Dead Sea ◽  
Salt Rock ◽  
The World ◽  
History Of ◽  
The Dead ◽  
Physical Features ◽  
Physical Phenomena ◽  
Geological Magazine

I Have been very much interested in reading Mr. Russell's two communications published in the Geological Magazine for August and September last. The analogy which he draws between the history of the Dead Sea valley and that of some of the lake valleys in the western part of North America is instructive as showing how similar physical features can be accounted for on similar principles of interpretation over all parts of the world. Mr. Eussell very properly draws attention to the paper by his colleague Mr. G. K. Gilbert on “The Topographical Features of Lake Shores,” in which principles of interpretation of physical phenomena are laid down applicable to lakes both of America and the Jordan-Arabah valley. With some of Mr. Russell's inferences regarding special epochs in the history of this valley I am very much disposed to agree; more particularly in reference to the mode of formation of the Salt Mountain, Jebel Usdum; or rather, of the salt-rock which forms the lower part of its mass. If this interpretation be correct, it removes the difficulty of understanding why the rock-salt is confined to one small corner of the lake, which, at the time the salt was in course of formation, was vastly more extensive than at present.

Observations on an introduced bud scale, Physokermes hemicryphus (Homoptera: Coccidae), infesting Norway spruce in Idaho

2004 ◽  
Vol 34 (6) ◽  
pp. 1348-1352 ◽  
Author(s):  
Malcolm M Furniss
Keyword(s):  
North America ◽  
Picea Abies ◽  
Norway Spruce ◽  
First Instar ◽  
The Dead ◽  
Lateral Branches

An introduced bud scale on Norway spruce (Picea abies (L.) Karst. (Pinaceae)) in Idaho, formerly thought to be Physokermes piceae Schrank (Homoptera: Coccidae), is identified as Physokermes hemicryphus (Dalman). Secondary lateral branches of infested Norway spruce become pendent as a result of growing abnormally in length relative to diameter. The scale reproduces by parthenogenesis in North America; no male is known there. Mature females in situ resemble a branch bud. An average of 2.2 females occurred per infested node. They grew larger in late May, at which time they protruded visibly from beneath branch bud scales of the previous year and became immersed in their secreted honeydew. At maturity, females contained a prolific number of eggs (290–858). The eggs hatched into nymphs within the rigid exoskeleton of the dead female in late June. Nymphs emerged during July and migrated distally along a branch. They overwintered as second (final) instars attached to needles or beneath bud scales at the branch node from which the current-year terminal emanated. Four species of hymenopterous parasites were reared from adult scales. Of these, Americencyrtus sp. (Hymenoptera: Encyrtidae) was most abundant. It parasitized a majority of first instar nymphs but allowed them to develop to maturity the following spring before destroying their embryonic eggs and emerging in synchrony with appearance of nymphs of unparasitized females.

Identification of Natal Locales of Peregrine Falcons (Falco peregrinus) by Trace-Element Analysis of Feathers

The Auk ◽  
1983 ◽  
Vol 100 (3) ◽  
pp. 560-567 ◽  
Author(s):  
Jimmie R. Parrish ◽  
David T. Rogers ◽  
F. Prescott Ward
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Trace Element Analysis ◽  
Trace Element Content ◽  
Falco Peregrinus ◽  
Element Analysis ◽  
Peregrine Falcons ◽  
Geographic Origins ◽  
Multivariate Discriminant ◽  
Discriminant Function Analyses

Abstract Samples of secondary remiges collected from nestling Peregrine Falcons (Falco peregrinus) in Alaska and western Greenland were analyzed for trace-element content using instrumental neutron-activation analysis. Concentrations of 14 trace elements were subjected to a series of multivariate discriminant function analyses to ascertain whether or not these concentrations could be used to identify the geographic origins of the birds sampled. Individual falcons from the three areas studied can be placed in their proper natal locale with 100% predictability. Mercury (Hg) was the best individual discriminator for separating sample groupings. Aluminum (A1) and Vanadium (V), in conjunction with Hg, provided the most discriminant trio of elements when various groupings of element concentrations were considered as predictors.

A Large Aggregation of 50 Peregrine Falcons (Falco peregrinus) During Migration in the Western Gulf of Mexico

2018 ◽  
Vol 52 (4) ◽  
pp. 500-502 ◽  
Author(s):  
Silvan T. Paganini ◽  
Amanda Stafford ◽  
Johann von Hirschheydt ◽  
Marc Kéry
Keyword(s):  
Gulf Of Mexico ◽  
Falco Peregrinus ◽  
Large Aggregation ◽  
Peregrine Falcons

Avipoxvirus infection in peregrine falcons (Falco peregrinus) from a reintroduction programme in Germany

2004 ◽  
Vol 154 (4) ◽  
pp. 110-113 ◽  
Author(s):  
O. Krone ◽  
S. Essbauer ◽  
G. Wibbelt ◽  
G. Isa ◽  
M. Rudolph ◽  
...  
Keyword(s):  
Falco Peregrinus ◽  
Peregrine Falcons
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