Open AccessUsing endocarp-remains of seeds of wild apricot Prunus armeniaca to identify rodent seed predators
Author(s) -
Hongmao Zhang,
Wei Wang
Publication year - 2009
Publication title -
current zoology/environmental epigenetics/current zoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.971
H-Index - 38
eISSN - 2058-5888
pISSN - 1674-5507
DOI - 10.1093/czoolo/55.6.396
Subject(s) - seed predation , biology , seed dispersal , rodent , predation , coat , prunus armeniaca , botany , zoology , horticulture , biological dispersal , ecology , cultivar , medicine , population , environmental health
Some rodent-dispersed seeds have a hard seed-coat (e.g.woody endocarp). Specific scrapes or dental marks on the hard seed-coat left by rodents when they eat these seeds can be used to identify seed predators. In this study we measured the morphological traits of endocarp-remains of seeds of wild apricot Prunus armeniaca used by Chinese white-bellied rats Niviventor confucianus and Korean field mice Apodemus peninsulae. We established their Fisher’s linear discriminant functions to separate endocarp-remains between the two predators. A total of 90.0% of the endocarp-remains left by Korean field mice and 88.0% of those left by Chinese white-bellied rats were correctly classified. The overall percentage of correct classification was 89.0%. One hundred and sixty endocarp-remains of unknown what species predated them were classified using the functions. The method may allow more reliable quantitative studies of the effects of Chinese white-bellied rats and Korean field mice on seed consumption and dispersal of wild apricot and this study might be used for reference in other studies of seed predators identification on hard seeds.