NDLI: Tracking animal-mediated seedling establishment from dispersed acorns with the aid of the attached cotyledons

Content Provider	Springer Nature Link
Author	Yi, Xianfeng Wang, Zhenyu
Copyright Year	2015
Abstract	Various methods have been used to track seed dispersal of large-seeded species; however, the influence of different seed tracking methods on ecological outcomes of seed dispersal by animals is not well evaluated. Acorn removal by food hoarding animals and the following seedling establishment of Mongolian oak (Quercus mongolica) were investigated in Xiaoxing’anling Mountain, Heilongjiang, northeastern China, by using four different marking methods: plastic tagging, nail insertion, hole drilling, and isotope labeling. The acorn removal speed differed among marking methods, with plastic-tagged acorns being removed more slowly than those marked with nails, holes, and isotope. By checking the attached cotyledons and performing isotope analyses, more seedlings were found to establish from nailed acorns and isotope-soaked acorns than from drilled acorns and plastic-tagged acorns. Plastic-tagged acorns were transported closer than those marked with nails, holes, and isotope. Moreover, seedlings were often found clustered in caches containing acorns marked with plastic tags. Low level of cotyledon predation by animals makes it possible to directly identify focal seedlings of white oaks based on the attached cotyledons. Considering cotyledon predation by animals, coupling minor modification of cotyledons with isotope labeling appears to be an easy way to explore the actual pattern of seed dispersal of large-seeded trees, e.g., oaks.
Starting Page	149
Ending Page	154
Page Count	6
File Format	PDF
ISSN	21992401
Journal	Acta Theriologica
Volume Number	60
Issue Number	2
e-ISSN	2199241X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-01-31
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Acorn Seed dispersal Seed marking Seedling establishment Zoology Animal Physiology Behavioral Sciences Animal Ecology Evolutionary Biology Animal Anatomy Morphology Histology
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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