scholarly journals Relationships of Body Size, Fecundity, and Invasion Success Among Predatory Lady Beetles (Coleoptera: Coccinellidae) Inhabiting Alfalfa Fields

2010 ◽  
Vol 103 (5) ◽  
pp. 750-756 ◽  
Author(s):  
Yukie Kajita ◽  
Edward W. Evans
Keyword(s):  
Body Size ◽  
Invasion Success ◽  
Lady Beetles ◽  
Predatory Lady Beetles

The population and community ecology of invading insects

1986 ◽  
Vol 314 (1167) ◽  
pp. 607-617 ◽  
Keyword(s):  
Body Size ◽  
Empirical Studies ◽  
Intrinsic Rate ◽  
Invasion Success ◽  
Intrinsic Rate Of Increase ◽  
Population Fluctuations ◽  
Main Determinant ◽  
Rate Of Increase ◽  
Cause Of Failure ◽  
Main Determinants

Theory is equivocal about invasion success, implicating various combinations of r , a population’s intrinsic rate of increase, K , its ‘carrying capacity’, enemy-imposed death rates and the coefficient of variation in population numbers as determinants of establishment. Data for a wide variety of organisms, both vertebrates and invertebrates (including insects), accidentally or deliberately introduced by man into the British Isles, appear to show that the probability of establishment of an invader is positively correlated with body size. These data are consistent with the idea that the amplitude of population fluctuations is the main determinant of invasion success, but not with theoretically expected effects of r or K (because populations of small organisms generally fluctuate more than populations of large organisms, but both r and K decrease with increasing body size). However, data for various insect orders introduced into Britain show exactly the opposite trend, with probability of establishment decreasing with increasing body size, and hence possibly with decreasing r and/or K . Possible reasons for these contradictory results, including biases in the data, are discussed. Finally, data from a variety of sources, including insects released as biological control agents, show that enemies (parasitoids and predators) are often a cause of failure to establish particular species of introduced insects. These data add further to the uncertainty about the main determinants of invasion ability. The only clear conclusion to emerge from a combination of theoretical and empirical studies is that r alone is not obviously the main, or even an important determinant of invasion success.

Invasion success depends on invader body size in a size-structured mixed predation-competition community

2009 ◽  
Vol 78 (6) ◽  
pp. 1152-1162 ◽  
Author(s):  
Arne Schröder ◽  
Karin A. Nilsson ◽  
Lennart Persson ◽  
Tobias van Kooten ◽  
Birte Reichstein
Keyword(s):  
Body Size ◽  
Invasion Success

scholarly journals Demographic histories of three predatory lady beetles reveal complex patterns of diversity and population size change in the United States

2017 ◽  
Vol 25 (6) ◽  
pp. 1065-1079 ◽  
Author(s):  
Arun Sethuraman ◽  
Fredric J. Janzen ◽  
Michael A. Rubio ◽  
Yumary Vasquez ◽  
John J. Obrycki
Keyword(s):  
United States ◽  
Population Size ◽  
The United States ◽  
Size Change ◽  
Lady Beetles ◽  
Complex Patterns ◽  
Population Size Change ◽  
Predatory Lady Beetles

Body size and invasion success in marine bivalves

2002 ◽  
Vol 5 (2) ◽  
pp. 163-167 ◽  
Author(s):  
Kaustuv Roy ◽  
David Jablonski ◽  
James W. Valentine
Keyword(s):  
Body Size ◽  
Invasion Success ◽  
Marine Bivalves

scholarly journals Aphid secondary symbionts do not affect prey attractiveness to two species of predatory lady beetles

PLoS ONE ◽  
2017 ◽  
Vol 12 (9) ◽  
pp. e0184150
Author(s):  
Jennifer L. Kovacs ◽  
Candice Wolf ◽  
Dené Voisin ◽  
Seth Wolf
Keyword(s):  
Lady Beetles ◽  
Predatory Lady Beetles
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