THE MOSQUITOES OF THE GREATER WINNIPEG AREA

1944 ◽  
Vol 76 (5) ◽  
pp. 89-104 ◽  
Author(s):  
J. McLintock
Keyword(s):  
Relative Abundance ◽  
Field Work ◽  
Seasonal Distribution

This study was an attempt to discover, for the Greater Winnipeg district, what species of mosquitoes occurred, under what conditions, their seasonal distribution, and the relative abundance of each species. The field work and preservation of the material were done by the writer in conjunction with his duties, first as Senior Foreman in 1938 and later, in 1939, as Field Manager of the Winnipeg Anti-Mosquito Campaign.

A CONTRIBUTION TO THE BIONOMICS OF THE MOSQUITOES OF ALGONQUIN PARK

1959 ◽  
Vol 37 (5) ◽  
pp. 763-770 ◽  
Author(s):  
W. E. Beckel ◽  
H. L. Atwood
Keyword(s):  
Relative Abundance ◽  
Seasonal Distribution ◽  
Peak Abundance ◽  
Aedes Communis

The results of one season's mosquito collecting in Algonquin Park are presented giving data on relative abundance, seasonal distribution, and habitat of larvae and adults.General correlations between mosquito distribution and vegetation, and distribution and exposure are mentioned.The list of species found in the Park now includes 3 species of Anopheles, 17 of Aedes, 3 of Culiseta, 2 of Culex, 1 of Wyeomia, and 1 of Mansonia. Twenty-one of these 27 species have been taken biting man. Of these the most common in order of time of peak abundance were Aedes communis, Aedes punctor, Mansonia perturbans, and Aedes canadensis.

Seasonal Distribution and Abundance of Dugongs in the Western-Gulf-of-Carpentaria

1989 ◽  
Vol 16 (2) ◽  
pp. 141 ◽  
Author(s):  
P Bayliss ◽  
WJ Freeland
Keyword(s):  
Relative Density ◽  
Relative Abundance ◽  
Coastal Waters ◽  
Seasonal Changes ◽  
Aboriginal People ◽  
Dry Season ◽  
Seasonal Distribution ◽  
Wet Season ◽  
Aerial Surveys ◽  
The 1960S

Aerial surveys of coastal waters (27 216 km2) in the western Gulf of Carpentaria during the dry season of 1984 and wet season of 1985 indicated no major seasonal changes in distribution and relative abundance of dugongs. Minimum population size in the dry season was estimated as 16 816 � 2946 (standard error), with a relative density of 0.62 k 0.11 km-2, and that for the wet season 16 846 + 3257, with a relative density of 0.62 � 0.12 km-2. The estimates exclude 5% of observations which could have been either dugongs or Irrawaddy dolphins, and were corrected for submerged dugongs and those missed on the surface. Dugongs were unevenly distributed over the study area, and neither mean group size nor proportion of calves varied between seasons. Dugong abundance was correlated with area of available seagrass. The catch rate of dugongs by Aboriginal people off Numbulwar decreased six-fold between the 1960s and 1985 (60 to 10 p.a.), possibly due to excessive hunting.

Records of horse flies and deer flies (Diptera: Tabanidae) in New Brunswick

1978 ◽  
Vol 56 (7) ◽  
pp. 1546-1549
Author(s):  
A. W. Thomas
Keyword(s):  
New Brunswick ◽  
Relative Abundance ◽  
Seasonal Distribution ◽  
Maritime Provinces ◽  
Horse Flies

Forty-three species of tabanids in five genera are recorded from New Brunswick. Locality data, notes on seasonal distribution, and relative abundance are given. Modifications to keys of tabanids of the Maritime Provinces are given.

scholarly journals Bat assemblages in fragmented forest complexes near Rogów (central Poland)

2018 ◽  
Vol 79 (3) ◽  
pp. 253-260
Author(s):  
Grzegorz Lesiński ◽  
Jakub Gryz ◽  
Aleksander Rachwald ◽  
Dagny Krauze-Gryz
Keyword(s):  
Species Composition ◽  
Relative Abundance ◽  
Field Work ◽  
Fragmented Forest ◽  
Central Poland ◽  
Nyctalus Leisleri ◽  
Large Populations ◽  
Myotis Daubentonii ◽  
Fragmented Forests ◽  
Eptesicus Serotinus

Abstract Habitat fragmentation affects bat assemblages living in forests by changing species composition, species richness and population densities. The aim of this paper was to determine the structure of bat assemblages in fragmented forests of central Poland (Experimental Forest Station SGGW in Rogów) based on data concerning bat fauna of this area. Our work is based on published as well as unpublished data collected between 2011–2017 and the two main methods employed during field work were: (1) evening and night bat netting, (2) detection of flying bats on transects or in points by using ultrasound detectors. 16 bat species were observed with the most common ones being serotine bat Eptesicus serotinus (Schreb.), common noctule Nyctalus noctula (Schreb.) and brown long-eared bat Plecotus auritus (l.). less numerous in overall but frequently observed in some sites were the western barbastelle Barbastella barbastellus (Schreb.) and the Daubenton's bat Myotis daubentonii (Kuhl). The following species occurred rarely: greater mouse-eared bat Myotis myotis (Bork.), Natterer's bat M. nattereri (Kuhl), whiskered bat M. mystacinus (Kuhl), Brandt's bat M. brandtii (evers.), northern bat Eptesicus nilssonii (Keys. & Blas.) parti-coloured bat Vespertilio murinus l., lesser noctule Nyctalus leisleri (Kuhl), common pipistrelle Pipistrellus pipistrellus (Schreb.), nathusius' pipistrelle P. nathusii (Keys. & Blas.), soprano pipistrelle P. pygmaeus (leach) and grey long-eared bat Plecotus austriacus (Fish.). Fragmented forests of the study area did not differ significantly in terms of bat species composition from other fragmented forests of central Poland (Płońsk Plain) nor the large forest complexes of the Bolimowska and Kampinoska Forests. In this study area, however, bat assemblages were characterized by a lower relative abundance of the common noctule and a higher relative abundance of the serotine bat as compared to assemblages in other forests of central Poland. In conclusion, the forest fragmentation near Rogów does not significantly affect bat richness and fertilized habitats are suitable for relatively large populations of species such as the western barbastelle and lesser noctule.

scholarly journals Seasonal Distribution and Relative Abundance of Fish Fauna of a Small Hill-Stream Dangchaura (Takoli) Gad, along with River Alaknanda

Our Nature ◽  
1970 ◽  
Vol 7 (1) ◽  
pp. 182-186 ◽  
Author(s):  
B. Bisht ◽  
A.K. Badoni ◽  
S.N. Bahuguna
Keyword(s):  
Relative Abundance ◽  
Fish Fauna ◽  
Seasonal Distribution ◽  
Stream Fish ◽  
Main River ◽  
Breeding Grounds

The present study was carried out to investigate seasonal distribution and relative abundance of fish fauna of a small hill stream Dangchaura (Takoli) Gad along with river Alaknanda. The differences in availability of fish-fauna were directly related to the nature of profile and slope of tributary; which affects the migration and breeding grounds of the fishes inhabited in the main river Alaknanda.Key words: Hill-stream fish fauna, Seasonal distribution, Dangchaura GadDOI: 10.3126/on.v7i1.2569Our Nature (2009) 7:182-186

scholarly journals Seasonal distribution of Borreliae in Ixodes ricinus ticks in the Belgrade region

2006 ◽  
Vol 58 (3) ◽  
pp. 183-186 ◽  
Author(s):  
Marija Milutinovic ◽  
Z. Radulovic ◽  
Snezana Tomanovic ◽  
Z. Tomanovic
Keyword(s):  
Population Dynamics ◽  
Borrelia Burgdorferi ◽  
Infection Rate ◽  
Ixodes Ricinus ◽  
Relative Abundance ◽  
Seasonal Distribution ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Green Areas ◽  
Ixodes Ricinus Ticks ◽  
Faunistic Composition

Green areas at four localities in the Belgrade region (Ada Ciganlija, Kosutnjak, Miljakovac forest, and Mt. Avala) were investigated in 2004. The aim of the research was to clarify the faunistic composition, relative abundance, and population dynamics of ticks, as well as the seasonal distribution of Borrelia burgdorferi sensu lato (sl) in Ixodes ricinus. Two species of ticks were detected: Ixodes ricinus and Dermacentor reticulates. Relative abundance analysis revealed that the species Ixodes ricinus was predominant (97.41 %). Out of 942 Ixodes ricinus ticks, 188 (19.96 %) were infected with Borrelia burgdorferi sl. The infection rate of adults by localities ranged from 19.16% to 30.99% (Mt. Avala and Ada Ciganlija, respectively).

RELATIVE ABUNDANCE AND SEASONAL DISTRIBUTION OF TABANIDAE (DIPTERA) NEAR GUELPH, ONTARIO

1978 ◽  
Vol 110 (4) ◽  
pp. 385-398 ◽  
Author(s):  
Victor I. Golini ◽  
Russell E. Wright
Keyword(s):  
Relative Abundance ◽  
Abundant Species ◽  
Seasonal Distribution ◽  
Flight Period ◽  
Habitat Types ◽  
Creek Watershed ◽  
Soil Wetness

AbstractA total of 34 species of female tabanids were collected with CO2-traps from four different habitats near Guelph, Ont., during the 1971, 1972, and 1973 fly seasons. Nearly equal numbers of species were trapped at the Ontario Reformatory, Preston, Kortright, and the Hanlon Creek watershed, comprising a total of 15 Chrysops spp., 12 Hybomitra spp., 6 Tabanus spp., and 1 Atylotus sp. Relative abundance and flight periods are reported for each species. Chrysops frigidus O. S. and Hybomitra lasiophthalma (Macq.) were the most abundant species among their respective tribes; their abundance was related directly to degree of soil wetness, differing from that of Tabanus similis Macq. and T. quinquevittatus Wd. which was related inversely to these habitat types. The flight period of nearly 85% of the sampled population, consisting mainly of C. frigidus, H. lasiophthalma, and H. epistates (O.S.), spanned from the end of May till mid-July. T. quinquevittatus, T. lineola Fab., and H. epistates occurred till mid-September.

scholarly journals Population dynamics of Euglossinae bees (Hymenoptera, Apidae) in an early second-growth forest of Cajual Island, in the State of Maranhão, Brazil

2002 ◽  
Vol 62 (1) ◽  
pp. 15-23 ◽  
Author(s):  
F. S. SILVA ◽  
J. M. M. REBÊLO
Keyword(s):  
Population Dynamics ◽  
Relative Abundance ◽  
Rainy Season ◽  
Methyl Salicylate ◽  
Common Species ◽  
Seasonal Distribution ◽  
Activity Data ◽  
Euglossine Bees ◽  
Species Numbers ◽  
Second Growth

A study was conducted in an early second-growth forest aiming at knowing the richness, relative abundance, seasonal distribution, and hourly frequency of euglossine bees, and their association with scent baits. Male bees were attracted to cineole, vanillin, methyl salicylate, and eugenol. The baits were hooked 1.5 m high and 6 m from one another. The specimens were collected from December 1997 to November 1998, once a month, from 7:00 to 17:00 h. A total of 339 male euglossine bees were caughts, accounting for 19 species and four genera. The most common species was E. cordata, making up 69.9% of the individuals, followed by E. truncata (2.3%), E. violaceifrons, and E. smaragdina (2.1%). The most attractive scent was cineole, which baited 87% of the specimens and 73.7% of the species. Vanillin, the second most visited bait, eured 7.6% of the specimens and 26.3% of the species. E. surinamensis was only collected with this bait. Methyl salicylate and eugenol baited combined 2.6% of the specimens. However, by species numbers Methyl salicylate attracted 21% whereas eugenol was attractive for 15.8% of them. In general, the species were more abundantly found in the rainy season (January-June). The hourly activity data showed that the euglossine bees were attracted to the baits all day long, but at a higher frequency in the morning period, peaking between 8:00 and 10:00 h.

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