Studies of the Byron Bog in Southwestern Ontario. XI. Seasonal Distribution of Adult Insects in the Chamaedaphnetum calyculatae Association

1960 ◽  
Vol 92 (4) ◽  
pp. 241-251 ◽  
Author(s):  
W. W. Judd
Keyword(s):  
Seasonal Distribution ◽  
Chamaedaphne Calyculata

In the description of the Byron Bog (Judd, 1957c) it was pointed out that one method of collecting insects in the bog was to make a circular sweep with an insect net, held at arm's length, through the tops of the bushes in the Chamaedaphnetum calyculatae association. The net used was one with a rim twelve inches in diameter and the radius of the circle over which the sweep was made was six feet. A single sweep was made each day from Itlay 15 to November 15 in 1956 and all the insects collected each day were sorted and counted. The dav of maximum blooming of Chamaedaphne calyculata was May 21 and the day of last blooming was June 1 (Judd, 1958a). Thus there was a period of nineteen days, from May 15 to June 1, when the plants were in bloom while the sweeping was in progress.

Function of coprophagous beetles (Coleoptera: Scarabaeidae, Geotrupidae, Hydrophilidae) in cattle pastures inferred from pitfall trapping data

2010 ◽  
Vol 27 (2) ◽  
pp. 85-91 ◽  
Author(s):  
Martin Šlachta ◽  
Jan Frelich ◽  
Tomáš Tonka
Keyword(s):  
Seasonal Variation ◽  
Spatial Variation ◽  
Dry Weight ◽  
Seasonal Distribution ◽  
The Other ◽  
Pitfall Trapping ◽  
Other Hand ◽  
Nested Anova ◽  
Species Groups ◽  
Dung Decomposition

Function of coprophagous beetles (Coleoptera: Scarabaeidae, Geotrupidae, Hydrophilidae) in cattle pastures inferred from pitfall trapping dataAn analysis of data on the dry weight biomass of coprophagous beetles in standardized dung (4.5 l) was conducted in order to characterize the spatial and the seasonal distribution of the beetles' biomass in cattle pastures and to elucidate their function in dung decomposition. Nested Anova with factors of farm, site (nested in farm), seasonal period and year was used to evaluate the effect of these factors on the biomass of four functional species groups: the dung dwellers ofScarabaeidae(subfamilyAphodiinae), the dung dwellers ofHydrophilidae, the small tunnellers ofScarabaeidae(subfamilyCoprinae) and the large tunnellers ofGeotrupidae. The spatial variation of biomass (between the sites and the farms) was insignificant (P>0.05) in the two dung-dweller groups and in the large-tunnellers group. On the other hand, a significant (P<0.05) seasonal variation of biomass was found in all but the large tunneller group. In dung dwellers, the spring biomass was formed mainly by two species,Aphodius prodromusandA. sphacelatus. In summer, most of the biomass was accounted for bySphaeridium lunatum, S. scarabaeoidesandA. rufipes. In the two tunneller groups,Onthophagus fracticornis, Geotrupes stercorariusandG. spinigerformed a majority of the biomass in dung.

Seasonal distribution of deaths of tigers (Panthera tigris) in Indian zoos

2002 ◽  
Vol 17 (3) ◽  
pp. 741-743
Author(s):  
Anupam Srivastav ◽  
Bipul Chakrabarty
Keyword(s):  
Seasonal Distribution ◽  
Panthera Tigris

Modelling the spatial and seasonal distribution, fate and transport of floating plastics in tropical coastal waters

2021 ◽  
Vol 414 ◽  
pp. 125502
Author(s):  
Xuneng Tong ◽  
Mui-Choo Jong ◽  
Jingjie Zhang ◽  
Luhua You ◽  
Karina Yew-Hoong Gin
Keyword(s):  
Coastal Waters ◽  
Fate And Transport ◽  
Seasonal Distribution

Seasonal distribution of suicide in alcoholism

2002 ◽  
Vol 106 (4) ◽  
pp. 299-302 ◽  
Author(s):  
Louise Brådvik ◽  
Mats Berglund
Keyword(s):  
Seasonal Distribution
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