Population growth rate and genetic variability of small and large populations of Red flour beetle (Tribolium castaneum) following multigenerational exposure to copper

Ecotoxicology ◽  
2015 ◽  
Vol 24 (5) ◽  
pp. 1162-1170 ◽  
Author(s):  
Ryszard Laskowski ◽  
Jacek Radwan ◽  
Katarzyna Kuduk ◽  
Magdalena Mendrok ◽  
Paulina Kramarz
Keyword(s):  
Growth Rate ◽  
Genetic Variability ◽  
Population Growth ◽  
Tribolium Castaneum ◽  
Population Growth Rate ◽  
Red Flour Beetle ◽  
Flour Beetle ◽  
Large Populations

DETRITUS AS A FACTOR INFLUENCING POPULATION GROWTH RATES OF THREE TENEBRIONID BEETLES IN STORED CORN

1989 ◽  
Vol 24 (4) ◽  
pp. 454-459 ◽  
Author(s):  
Richard T. Arbogast
Keyword(s):  
Growth Rate ◽  
Population Growth ◽  
Tribolium Castaneum ◽  
Growth Rates ◽  
Population Growth Rate ◽  
Prime Factor ◽  
Fine Dust ◽  
Stored Grain ◽  
Population Growth Rates ◽  
Insect Activity

Experiments showed that changes in population growth rate due to detritus produced by insect activity in stored grain varies with species and is a prime factor determining ecological succession of secondary grain pests. Cynaeus angustus (LeConte), Latheticus oryzae Waterhouse, and Tribolium castaneum (Herbst) were reared on a 1:1 mixture of whole and cracked corn. On this diet, T. castaneum showed the highest rate of population growth and L. oryzae the lowest. Population growth of T. castaneum and L. oryzae was stimulated by adding fine dust (collected from infested corn) or dead moths to the diet, and this effect was much greater in L. oryzae than in T. castaneum. Population growth of C. angustus (as indicated by number of adults) was not affected by supplementation of the diet, but larger larval populations were produced on supplemented corn. The results are related to previously reported observations of succession in stored corn.

scholarly journals The effect of population size on effective population size: an empirical study in the red flour beetle Tribolium castaneum

1996 ◽  
Vol 68 (2) ◽  
pp. 151-155 ◽  
Author(s):  
Leslie A. Pray ◽  
Charles J. Goodnight ◽  
Lori Stevens ◽  
James M. Schwartz ◽  
Guiyun Yan
Keyword(s):  
Population Size ◽  
Tribolium Castaneum ◽  
Evolutionary Biology ◽  
Negative Relationship ◽  
Red Flour Beetle ◽  
Published Data ◽  
Effective Population ◽  
Flour Beetle ◽  
Large Populations ◽  
Population Sizes

SummaryDespite the increasing number of studies on the magnitude of Ne/N ratios, much remains unknown about the effects of demographic and environmental variables on Ne/N. We determined Ne/N for seven population size treatments, ranging from N = 2 to N = 960, in the red flour beetle Tribolium castaneum. Ne/N decreased with increasing N, as evidenced by a significant negative relationship between log N and Ne/N. Our results are consistent with other published data on the relationship between Ne/N and N. Effective population sizes in large populations may be much smaller than previously recognized. These results have important implications for conservation and evolutionary biology.

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