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Spence, J. R.
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1993
Niemelä, J.
,
Langor D.
, &
Spence J. R.
(1993).
Effects of clear-cut harvesting on boreal ground-beetle assemblages (Coleoptera: Carabidae) in western Canada
.
7,
551-562.
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Niemela, J.
,
Spence J. R.
,
Langor D. W.
,
Haila Y.
, &
Tukia H.
(1993).
Logging and boreal ground assemblages on two continents : implications for conservation
.
29-50.
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1992
Niemela, J.
,
Spence J. R.
, &
Spence D. H.
(1992).
Habitat associations and seasonal activity of ground-beetles (Coleoptera, Carabidae) in central Alberta
.
124,
521-540.
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1991
Niemela, J.
, &
Spence J. R.
(1991).
Distribution and abundance of an exotic ground-beetle (Carabidae) : a test of community impact
.
62,
351-359.
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Spence, J. R.
, &
Carcamo H. A.
(1991).
Effects of cannibalism and intraguild predation on pondskaters (Gerridae)
.
62
(3), 333-341.
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1990
Sperling, F. A. H.
, &
Spence J. R.
(1990).
Allozyme survey and relationships of Limnoporus Stål species (Heteroptera: Gerridae)
.
122,
29-42.
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Spence, J. R.
(1990).
Introgressive hybridization in Heteroptera : the example of Limnoporus Stål (Gerridae) species in western Canada
.
68,
1770-1782.
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Spence, J. R.
(1990).
Success of European carabid species : preadaption for synanthropy?
.
129-141.
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1989
Spence, J. R.
, &
Masliyah J. H.
(1989).
The effects of clay fines on oil in water dispersions
.
67
(6), 924-928.
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Spence, J. R.
(1989).
The habitat templet and life history strategies of pondskaters (Heteroptera: Gerridae) : reproductive potential, phenology and wing dimorphism
.
67,
2432-2447.
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1986
Spence, J. R.
(1986).
Interactions between the scelionid egg parasitoid Tiphodytes gerriphagus (Hymenoptera) and its gerrid hosts (Heteroptera)
.
64,
2728-2738.
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Spence, J. R.
, &
Wilcox R. S.
(1986).
The mating system of two hybridizing species of water striders (Gerridae). II. Alternative tactics of males and females
.
19
(2), 87-95.
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Spence, J. R.
, &
Wilcox R. S.
(1986).
The mating system of two hybriizing species of water striders (Gerridae). I. Ripple signal functions
.
19,
79-85.
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Spence, J. R.
(1986).
Relative impacts of mortality factors in field populations of the waterstrider Gerris buenoi Kirkaldy (Heteroptera: Gerridae)
.
70,
68-76.
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1984
Nummelin, M.
,
Vepsaelaeinen K.
, &
Spence J. R.
(1984).
Habitat partitioning among developmental stages of waterstriders (Heteroptera : Gerridae)
.
42
(3), 267-275.
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1981
Spence, J. R.
(1981).
Experimental analysis of habitat selection in waterstriders (Heteroptera: Gerridae)
.
62,
1505-1514.
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1980
Spence, J. R.
(1980).
Density estimation for water-striders (Heperoptera : Gerridae)
.
10,
563-570.
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