Using forest insects to link biodiversity modeling and conservation management in an invaded North American Forest

2016 ◽  
Author(s):  
R. Talbot Trotter
Keyword(s):  
North American ◽  
Conservation Management ◽  
Forest Insects

scholarly journals An annotated list of the important North American forest insects / compiled by F.C. Craighead.

1909 ◽  
Author(s):  
Frank C. Craighead ◽  
J. A. Beal ◽  
Wilton Everett Britton ◽  
A. F. Burgess ◽  
August Busck ◽  
...  
Keyword(s):  
North American ◽  
Annotated List ◽  
Forest Insects

Physical effects of weather events on the abundance and diversity of insects in North American forests

2007 ◽  
Vol 15 (NA) ◽  
pp. 113-152 ◽  
Author(s):  
Kamal J.K. Gandhi ◽  
Daniel W. Gilmore ◽  
Steven A. Katovich ◽  
William J. Mattson ◽  
John R. Spence ◽  
...  
Keyword(s):  
North American ◽  
Prescribed Burning ◽  
Life Cycles ◽  
Economic Damage ◽  
Salvage Logging ◽  
Forest Insects ◽  
Weather Events ◽  
Short Period ◽  
Wind Storms ◽  
Abundance And Diversity

We summarize the effects of major weather events such as ice storms, wind storms, and flooding on the abundance and diversity of terrestrial forest insects and their allies. This synthesis indicates that weather events influence both spatial and temporal patterns of forests and insect communities in North American landscapes. The Atlantic and Pacific oceanic sides of the continent are relatively more susceptible to ice and wind storms, respectively. There have been more studies and reports on the responses of forest insects to wind storms, and on economically important subcortical insects than on gall-forming, foliage-feeding, fungal-feeding, litter-dwelling, pollinating, parasitizing, predaceous, root-feeding, and sap-feeding insects. Weather events positively affect populations of subcortical insect species, and impact their colonization patterns and dynamics. Species belonging to genera such as Dendroctonus (Scolytidae) and Monochamus (Cerambycidae) may sometimes cause economic damage by colonizing residual live tree, and dead trees, rendering the wood unsalvageable. Subsequent outbreaks of spruce beetle, Dendroctonus rufipennis (Kirby) and Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, have been frequently documented in western North American forests following wind events. Wind disturbances have also been observed to accelerate the life-cycles of D. rufipennis and Semanotus litigiosus (Casey) (Cerambycidae), and in rare instances, have caused Monochamus spp. to become primary colonizers. Populations of other important subcortical species have not always increased dramatically following weather events. Foliage- and pollen-feeding insects may experience mortality directly from a weather event or indirectly through habitat alteration. In some cases, forest insects may use storms to migrate to new habitats. Populations of open-habitat and forest specialist litter-dwelling species have increased and decreased, respectively, subsequent to weather events. Forest specialist species generally rebound within a short period of time, suggesting that they are adapted to these periodic weather events. Little is known about the combined effects of post-weather-disturbance management practices such as salvage-logging and prescribed-burning on insects in North American forests.

ESTABLISHMENT OF A PREDACIOUS RED WOOD ANT, FORMICA OBSCURIPES (HYMENOPTERA: FORMICIDAE), FROM MANITOBA TO EASTERN CANADA

1977 ◽  
Vol 109 (8) ◽  
pp. 1145-1148 ◽  
Author(s):  
R. J. Finnegan
Keyword(s):  
North America ◽  
North American ◽  
North American Species ◽  
Eastern Canada ◽  
Important Species ◽  
Formica Rufa ◽  
Forest Insects ◽  
Formica Obscuripes ◽  
Red Wood Ant

AbstractThe important species of predacious ants in Europe and North America belonging to the Formica rufa L. group, and their association with forest insects, is discussed. The absence of desirable species in Quebec is stated, and a brief description of an aggressive western North American species (F. obscuripes Forel) is given. The method used in collecting large colonies of this species in Manitoba, of transportation to Quebec, and of the eventual release and establishment is described. It is concluded that F. obscuripes is increasing in number in Quebec, and should be considered as permanently established.

Adaptation of the Connected Speech Test: Rerecording and Passage Equivalency

2020 ◽  
Vol 29 (2) ◽  
pp. 259-264 ◽  
Author(s):  
Hasan K. Saleh ◽  
Paula Folkeard ◽  
Ewan Macpherson ◽  
Susan Scollie
Keyword(s):  
Speech Perception ◽  
North American ◽  
First Language ◽  
Intraclass Correlation ◽  
Normal Hearing ◽  
Connected Speech ◽  
Internal Reliability ◽  
Speech Test ◽  
The Mean ◽  
Unit Standard

Purpose The original Connected Speech Test (CST; Cox et al., 1987) is a well-regarded and often utilized speech perception test. The aim of this study was to develop a new version of the CST using a neutral North American accent and to assess the use of this updated CST on participants with normal hearing. Method A female English speaker was recruited to read the original CST passages, which were recorded as the new CST stimuli. A study was designed to assess the newly recorded CST passages' equivalence and conduct normalization. The study included 19 Western University students (11 females and eight males) with normal hearing and with English as a first language. Results Raw scores for the 48 tested passages were converted to rationalized arcsine units, and average passage scores more than 1 rationalized arcsine unit standard deviation from the mean were excluded. The internal reliability of the 32 remaining passages was assessed, and the two-way random effects intraclass correlation was .944. Conclusion The aim of our study was to create new CST stimuli with a more general North American accent in order to minimize accent effects on the speech perception scores. The study resulted in 32 passages of equivalent difficulty for listeners with normal hearing.

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