干旱区生态环境知识资源中心(Arid): Switching roles from antagonist to mutualist: a harvester ant as a key seed disperser of a myrmecochorous plant

Arid

DOI	10.1111/een.12885
	Switching roles from antagonist to mutualist: a harvester ant as a key seed disperser of a myrmecochorous plant
	Anjos, Diego V.1,2; Andersen, Alan N.3; Carvalho, Raquel L.2; Sousa, Raquel M. F.2; Del-Claro, Kleber 1,2
通讯作者	Anjos, Diego V.
来源期刊	ECOLOGICAL ENTOMOLOGY
ISSN	0307-6946
EISSN	1365-2311
出版年	2020
卷号	45 期号:5 页码:1063-1070
英文摘要	1. Harvester ants are major seed predators in arid environments. However, given that many harvester ants are partly omnivorous and therefore potentially attracted to the elaiosomes of myrmecochorous seeds, it is unclear if these ants act as predators or dispersers when removing myrmecochorous seeds. 2. We describe the outcomes of interactions between the harvester ant, Pogonomyrmex naegelii, and myrmecochorous plant, Microstachys serrulata, in a Brazilian savanna. We: (i) evaluated the role of elaiosome in seed removal by P. naegelii; (ii) investigated the fate and viability of removed seeds; (iii) tested if soils associated with P. naegelii nests are nutrient-enriched; (iv) compared seedling survival; and (v) the density of seedling and adult M. serrulata nearby to P. naegelii nests compared with those away from these nests (i.e. controls). 3. Rates of removal of M. serrulata seeds were two-fold higher with elaiosomes than without. The ant attractant oleic acid was the dominant fatty acid in elaiosomes, but it was absent from seeds. Removed seeds are taken into nests, and Tetrazolium tests indicated that 95% of seeds remain viable. Soils associated with P. naegelii nests were not nutrient-enriched, and seedling survival was similar nearby to P. naegelii nests compared with control areas. However, densities of both seedling and adult M. serrulata were higher nearby to P. naegelii nests than in control areas. 4. Our findings show that P. naegelii switches its role from seed predator for most plant species to be the dominant seed disperser for M. serrulata, playing a key role in the distribution of adult plants.
英文关键词	Brazilian savanna elaiosome granaries myrmecochory nutrients oleic acid seedlings
类型	Article
语种	英语
国家	Brazil ; Australia
收录类别	SCI-E
WOS记录号	WOS:000532595100001
WOS关键词	DESERT ; EUPHORBIACEAE ; PREFERENCES ; RECRUITMENT ; PERFORMANCE ; ELAIOSOMES ; HYPOTHESIS ; PREDATORS ; BENEFITS ; NESTS
WOS类目	Entomology
WOS研究方向	Entomology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319100
作者单位	1.Univ Sao Paulo, Programa Posgrad Entomol, Ribeirao Preto, SP, Brazil; 2.Univ Fed Uberlandia, Uberlandia, MG, Brazil; 3.Charles Darwin Univ, Darwin, NT, Australia
推荐引用方式 GB/T 7714	Anjos, Diego V.,Andersen, Alan N.,Carvalho, Raquel L.,et al. Switching roles from antagonist to mutualist: a harvester ant as a key seed disperser of a myrmecochorous plant[J],2020,45(5):1063-1070.
APA	Anjos, Diego V.,Andersen, Alan N.,Carvalho, Raquel L.,Sousa, Raquel M. F.,&Del-Claro, Kleber.(2020).Switching roles from antagonist to mutualist: a harvester ant as a key seed disperser of a myrmecochorous plant.ECOLOGICAL ENTOMOLOGY,45(5),1063-1070.
MLA	Anjos, Diego V.,et al."Switching roles from antagonist to mutualist: a harvester ant as a key seed disperser of a myrmecochorous plant".ECOLOGICAL ENTOMOLOGY 45.5(2020):1063-1070.