Les Tabanidae (Diptera) À La Limite Septentrionale Des Forêts (Domaine Maritime Du Nouveau-Québec)

Maire, Alain

doi:10.4039/ent116227-2

Cited by 3 publications

(4 citation statements)

References 3 publications

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“…The 12 traps set at Hay River over about 6 ha captured 153 629 tabanids in 20 days (1143 flies/trap/day baited, 688 flies/trap/day unbaited). By comparison, mean catches with traditional traps at latitudes of 55–59°N in Canada have been much lower, at, for example, five flies/trap/day in a Malaise trap (Maire, 1984a), six flies/trap/day in a Malaise trap (Maire, 1984b), 32 flies/trap/day in a Malaise trap (Baribeau & Maire, 1983b), ≥33 flies/trap/day in a Manitoba trap (McElligott & Galloway, 1991), 36 flies/trap/day in a canopy trap (Maire, 1984a), and 101 flies/trap/day in Malaise and canopy traps (McElligott & Lewis, 1998).…”

Section: Discussionmentioning

confidence: 99%

Synergism between ammonia and phenols for Hybomitra tabanids in northern and temperate Canada

Mihok¹,

Lange

2011

Medical Vet Entomology

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Baits for tabanids (Diptera: Tabanidae) were tested in the Northwest Territories (60 °N) and Ontario (45 °N) using Nzi traps. Tests targeted ammonia, phenols/cow urine and octenol. About 200 000 tabanids were captured in 15 experiments with a maximum capture of 4182 in one trap in 1 day. In the Northwest Territories, phenols, urine and octenol were effective single baits for only some species. At both locations, adding ammonia to an unbaited or an octenol-baited trap had no effect on catches. By contrast, catches were increased for several species when ammonia was combined with phenols or urine. In Ontario, including ammonia in various baits increased catches by 1.5- to 3.4-fold relative to octenol alone for three Hybomitra and one Tabanus species. Synergism between ammonia and phenols was clearly demonstrated for the dominant Hybomitra species in Ontario (Hybomitra lasiophthalma), but not for the dominant species in the Northwest Territories (Hybomitra epistates). In five other northern Hybomitra species, baits of ammonia and/or octenol in combination with phenols resulted in a 1.7- to 4.1-fold increase in catch relative to an unbaited trap. Further tests of ammonia as a synergist for biting flies may prove useful in, for example, tsetse, which respond strongly to phenols.

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Section: Discussionmentioning

confidence: 99%

Synergism between ammonia and phenols for Hybomitra tabanids in northern and temperate Canada

Mihok¹,

Lange

2011

Medical Vet Entomology

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“…However, the progression is more limited in the northern woods than farther south, and no adult mosquitoes persist into late summer (Rempel 1953). Similarly, emergence of boreal and especially subarctic tabanids begins later than in more temperate areas, and activity continues for a shorter period (Hanec and Bracken 1964;Baribeau and Maire 19836;Maire 1984aMaire , 1984b. The activity pattern of the boreal horse fly Hybomitra aequetincta (Becker) appears to have an early peak, unlike the less northerly species H. zonalis (Kirby), which even in the same locality maintains a moderate level of activity for a longer period (Maire and Beaudoin 1984).…”

Section: Lie Cycles and Phenologymentioning

confidence: 99%

Insects of the Boreal Zone of Canada

Danks

Foottit²

1989

Can Entomol

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The boreal zone of Canada extends across the continent over millions of square kilometres. Characterizing the insects of this cool temperate zone is especially important for an understanding of the Canadian fauna in general, and for northern forestry. The boreal zone supports simple coniferous forests with some deciduous trees and an understory of a few common vascular plants, mosses, and lichens. This enormous area of apparently similar vegetation nevertheless shows very great spatial and temporal heterogeneity, with a wide range of subhabitats. Aquatic habitats of many different kinds are especially well represented in the zone. The diversity of terrestrial habitats is maintained chiefly by disturbance, especially fire and seasonal flooding, and contributes greatly to faunal diversity.About 22 000 insect species are estimated to occur in the zone, far fewer than in more southern zones. Northern taxa, notably Diptera, are relatively well represented. The distributions and patterns of variation of the species are summarized. About half have transcontinental ranges, and many occur also in forested habitats in the western mountains south of the boreal zone. About 8% of the species appear to be holarctic. Few species that occur in the boreal zone are strictly confined to it, however. Generalist species in fresh water and other widespread habitats are conspicuous. Many species are centred farther south, and extend northward into the zone to varying degrees.Adaptations to northern conditions have been reported in many boreal insects. For example, the short growing season is reflected by the prevalence of univoltine species. Insects survive the long cold winters by cold-hardiness and dormancies. Species from disturbed habitats disperse widely. The limited diversity of resources is confirmed by the fact that the food range of some groups of herbivores is wider than in their southern relatives.Boreal ecosystem relationships are complex, especially relative to the arctic. Numerous associations among insects, and between insects and other organisms, have been demonstrated. However, some evidence suggests that the structure of northern biotic communities might depend more on the tolerances of individual species than on interactions among the species.The population dynamics of boreal forest insects, notably the spruce budworm, are discussed. In view of the spatial and temporal complexity of the boreal zone, the diversity of interactions with abiotic and biotic factors, and the prevalence of data that correlate with rather than explain population changes, our current failure to understand “outbreaks” of certain boreal insects is not surprising, because many factors probably combine to determine the population of a given species at a given lime and place.Information on most aspects of the composition and biology of the boreal fauna is incomplete. Data on boreal species have been collected chiefly in southern transitional ecosystems adjacent to boreal zones, rather than in truly boreal systems. Basic taxonomic information on several important taxa, as well as detailed taxonomic and morphometric information about individual species, is especially scanty. However, substantial and coordinated studies of boreal faunas will yield information of great interest and value. Some approaches relevant to further work in taxonomic and ecological arenas are suggested.

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“…Les adultes prksents furent prClevCs puis fixes dans du form01 (10%) saturC en chlorure de calcium. Les spCcimens ont Ct C identifiCs a partir d'une clC combinant les crittres de celles de Pechuman (1981), Pechuman et al (Maire 1984) et confirment la prkdominance du genre Hybomitra dans les tourbikres comme sous de tels bioclimats (Baribeau et Maire 1983). A noter la capture de plusieurs specimens d Ces rksultats sont faibles (0.3 nymphe par mZ) si on les compare aux donntes obtenues par Miller (1951) a Churchill, Manitoba pour des milieux tout a fait comparables, en pratiquant la technique du tri systkmatique de la sphaigne.…”

unclassified

“…Les rtsultats concernant la distribution saisomiere des adultes de taons dans les tentes de Malaise sont trks semblables aux rksultats prkcedemrnent obtenus pour des regions voisines (Maire 1984). A la figure 2 sont reprksentkes les-abondances quotidiennes de capture pour chacune des tentes et pour les 4 espkces les plus abondantes.…”

unclassified

Les Taons (Diptera: Tabanidae) d'UNE Tourbière À Palses Située À La Limite Des Forêts (Nouveau-Québec)

Maire

1984

Can Entomol

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Les Tabanidae (Diptera) À La Limite Septentrionale Des Forêts (Domaine Maritime Du Nouveau-Québec)

Cited by 3 publications

References 3 publications

Synergism between ammonia and phenols for Hybomitra tabanids in northern and temperate Canada

Synergism between ammonia and phenols for Hybomitra tabanids in northern and temperate Canada

Insects of the Boreal Zone of Canada

Les Taons (Diptera: Tabanidae) d'UNE Tourbière À Palses Située À La Limite Des Forêts (Nouveau-Québec)

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