scholarly journals Seed size and pubescence facilitate secondary dispersal by dung beetles

Biotropica ◽  
2021 ◽  
Author(s):  
Karen M. Pedersen ◽  
Nico Blüthgen
Keyword(s):  
Seed Size ◽  
Dung Beetles ◽  
Secondary Dispersal

Quantification of four different post-dispersal seed deposition patterns after dung beetle activity

2017 ◽  
Vol 33 (6) ◽  
pp. 407-410 ◽  
Author(s):  
R. F. Braga ◽  
R. Carvalho ◽  
E. Andresen ◽  
D. V. Anjos ◽  
E. Alves-Silva ◽  
...  
Keyword(s):  
Seed Size ◽  
Rain Forest ◽  
Soil Surface ◽  
Dung Beetle ◽  
Dung Beetles ◽  
Deposition Condition ◽  
Deposition Patterns ◽  
Loose Soil ◽  
Amazonian Rain Forest ◽  
Seed Deposition

Abstract:Primary seed dispersal of many rain-forest seeds occurs through defecation by mammals. Dung beetles are attracted to the defecations and through their dung-processing behaviour these insects change the initial pattern of seed deposition. Final seed deposition patterns, i.e. where and how seeds are deposited after dung beetle activity has taken place, may strongly depend on seed size. In this study we addressed the following question: Do different sizes of seeds have different deposition patterns following dung beetle processing? We conducted a field experiment in lowland Amazonian rain forest in Brazil using 200-g dung-piles containing seed mimics of three sizes: 3.5, 8.6 and 15.5 mm long. Seed deposition condition after dung beetle activity was dependent on seed size. Small seeds were more often buried in beetle tunnels, while medium and large seeds more often remained on the soil surface, either clean or still covered by dung. A low proportion of seeds of all sizes remained on the soil surface covered by loose soil excavated by dung beetles. We speculate that the latter deposition pattern, though not very frequent, might be highly favourable for both seed survival and seedling establishment.

Do Pubescent Seeds Encourage Secondary Dispersal by Dung Beetles?

2020 ◽  
Author(s):  
Karen Marie Pedersen ◽  
Andrea Hilpert ◽  
Nico Blüthgen
Keyword(s):  
Dung Beetles ◽  
Secondary Dispersal

Large-scale spatial ecology of dung beetles

Ecography ◽  
2001 ◽  
Vol 24 (5) ◽  
pp. 511-524 ◽  
Author(s):  
Tomas Roslin
Keyword(s):  
Spatial Ecology ◽  
Large Scale ◽  
Dung Beetles

FloRunTM ‘331’ Peanut Variety

EDIS ◽  
2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Barry L. Tillman
Keyword(s):  
Seed Size ◽  
Growth Habit ◽  
Yield Potential ◽  
High Yield ◽  
University Of Florida ◽  
High Oleic ◽  
Central Stem ◽  
Research And Education ◽  
The University ◽  
High Yield Potential

FloRunTM ‘331’ peanut variety was developed by the University of Florida, Institute of Food and Agricultural Sciences, North Florida Research and Education Center near Marianna, Florida.  It was released in 2016 because it combines high yield potential with excellent disease tolerance. FloRunTM ‘331’ has a typical runner growth habit with a semi-prominent central stem and medium green foliage.  It has medium runner seed size with high oleic oil chemistry.

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