scholarly journals Distribution Ecology: Variation in Plant Recruitment over a Gradient in Relation to Insect Seed Predation

1982 ◽  
Vol 52 (1) ◽  
pp. 25-41 ◽  
Author(s):  
Svata M. Louda
1985 ◽  
Vol 63 (7) ◽  
pp. 1255-1261 ◽  
Author(s):  
C. David Rollo ◽  
J. D. MacFarlane ◽  
B. S. Smith

Allometric variation and insect seed predation among Arctium minus, A. lappa, and two possible hybrids were quantified. All four biotypes were also examined using isoelectric focusing, and differences among their proteins were found for alkaline phosphatases, leucine amino peptidases, esterases, and peroxidases. The allometric and electrophoretic results indicated that hybridization between A. minus and A. lappa is very common. The implications for the population dynamics of Arctium are discussed. The parental species are probably maintained by the combined effects of differential insect predation on the seeds, differential dispersal of seeds, and reduced seed viability in hybrids.


1991 ◽  
Vol 69 (2) ◽  
pp. 428-436 ◽  
Author(s):  
Christopher J. Whelan ◽  
Mary F. Willson ◽  
Charles A. Tuma ◽  
Isabel Souza-Pinto

We experimentally examined spatial and temporal patterns of postdispersal seed predation of vertebrate-dispersed plant species in temperate woodland and old-field habitats. Rodents were the principal predators. Rates of seed loss varied with microhabitat (near logs, tree trunks, and open forest floor), macrohabitat (old field, forest), plant species, year, and time of dispersal within a year. Levels of final mortality (= mortality at final census) did not vary with microhabitat or time of dispersal but did vary between macrohabitats, plant species, and years. The variability of our results (i) indicates the importance of dispersing many seeds into many different types of micro- and macro-habitats, (ii) supports the view of a diffuse mutualism between plants and their vertebrate dispersers, and (iii) suggests that to detect important trends in patterns of postdispersal seed predation, and ultimately plant recruitment, longer term studies are imperative. Key words: community structure, seed predation, rodents, plant populations, plant recruitment, vertebrate seed dispersal.


2017 ◽  
Vol 13 (3) ◽  
pp. 228-237 ◽  
Author(s):  
Michał BOGDZIEWICZ ◽  
Raul BONAL ◽  
Josep M. ESPELTA ◽  
Ewa M. KALEMBA ◽  
Michael A. STEELE ◽  
...  

2020 ◽  
Author(s):  
Łukasz Dylewski ◽  
Yvette K. Ortega ◽  
Michał Bogdziewicz ◽  
Dean E. Pearson

1975 ◽  
Vol 109 (966) ◽  
pp. 147-160 ◽  
Author(s):  
John H. Vandermeer

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