干旱区生态环境知识资源中心(Arid): Seed value influences cache pilfering rates by desert rodents

Arid

DOI	10.1111/1749-4877.12358
	Seed value influences cache pilfering rates by desert rodents
	Vander Wall, Stephen B.1,2; Dimitri, Lindsay A.3; Longland, William S.3; White, Joseph D. M.4
通讯作者	Vander Wall, Stephen B.
来源期刊	INTEGRATIVE ZOOLOGY
ISSN	1749-4877
EISSN	1749-4869
出版年	2019
卷号	14 期号:1 页码:75-86
英文摘要	Some rodents gather and store seeds. How many seeds they gather and how they treat those seeds is largely determined by seed traits such as mass, nutrient content, hardness of the seed coat, presence of secondary compounds, and germination schedule. Through their consumption and dispersal of seeds, rodents act as agents of natural selection on seed traits, and those traits influence how rodents forage. Many seeds that are scatter-hoarded by rodents are pilfered, or stolen, by other rodents, and seed traits also likely influence pilfering rates and seed fates of pilfered seeds. To clarify coevolutionary relationships between rodents and the plants that they disperse, one needs to understand the role of seed traits in rodent foraging decisions. We compared how the seeds of 4 species of plants that are dispersed by scatter-hoarding animals and that differ in value (singleleaf pinon pine, Pinus monophylla; desert peach, Prunus andersonii; antelope bitterbrush, Purshia tridentata; Utah juniper, Juniperus osteosperma) were pilfered and recached by rodents. One hundred artificial caches of the 4 seed species (25 per species) were prepared, and removal by rodents was monitored. Rodents pilfered high-value seeds more rapidly than the other seeds. Desert peach seeds, which contain toxic secondary compounds, were more frequently recached. Relatively low value seeds like Utah juniper and antelope bitterbrush were pilfered more slowly and were sometimes left at cache sites, and seeds of the latter species were transported shorter distances to new cache sites. The background density of seeds also appeared to influence the relative value of seeds.
英文关键词	desert rodents food storage granivory pilfering scatter-hoarding seed dispersal seed traits
类型	Article
语种	英语
国家	USA ; South Africa
收录类别	SCI-E
WOS记录号	WOS:000457472600007
WOS关键词	SCATTER-HOARDING RODENTS ; OAK-DISPERSAL SYNDROME ; ORYZOPSIS-HYMENOIDES ; HANDLING TIME ; SIZE ; BEHAVIOR ; DECISION ; TRAITS ; PINUS ; FATE
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216310
作者单位	1.Univ Nevada, Dept Biol, Reno, NV 89557 USA; 2.Univ Nevada, Program Ecol Evolut & Conservat Biol, Reno, NV 89557 USA; 3.ARS, USDA, Reno, NV USA; 4.Univ Cape Town, Dept Biol Sci, Cape Town, South Africa
推荐引用方式 GB/T 7714	Vander Wall, Stephen B.,Dimitri, Lindsay A.,Longland, William S.,et al. Seed value influences cache pilfering rates by desert rodents[J],2019,14(1):75-86.
APA	Vander Wall, Stephen B.,Dimitri, Lindsay A.,Longland, William S.,&White, Joseph D. M..(2019).Seed value influences cache pilfering rates by desert rodents.INTEGRATIVE ZOOLOGY,14(1),75-86.
MLA	Vander Wall, Stephen B.,et al."Seed value influences cache pilfering rates by desert rodents".INTEGRATIVE ZOOLOGY 14.1(2019):75-86.