干旱区生态环境知识资源中心(Arid): A tradeoff between fitness-related traits mask facilitation in a semiarid ecosystem

Arid

DOI	10.1111/oik.07156
	A tradeoff between fitness-related traits mask facilitation in a semiarid ecosystem
	Molina-Montenegro, Marco A.; Baldelomar, Mariela; Atala, Cristian; Torres-Diaz, Cristian
通讯作者	Molina-Montenegro, MA
来源期刊	OIKOS
ISSN	0030-1299
EISSN	1600-0706
出版年	2020
卷号	129 期号:8 页码:1196-1203
英文摘要	In stressful environments, a nurse plant can ameliorate harsh biotic and abiotic conditions for another plant species that grows within its canopy. This canopy can act as a barrier for herbivores, reducing damage to the protected plants inside, but it can also reduce access to pollinators possibly resulting in a tradeoff between survival and reproductive output. In a semi-arid ecosystem, the shrub Porlieria chilensis acts as a nurse, increasing soil moisture, nutrients and reducing temperature inside its canopy compared to open areas. Flourensia thurifera is one of the beneficiary shrubs that can grow inside P. chilensis, where it shows increased survival and performance compared to open areas. However, growing inside P. chilensis' canopy may reduce pollinator visit. We aim to evaluate the possible tradeoff between survival and reproduction in F. thurifera individuals growing inside and outside the canopy of P. chilensis. This was achieved through a field experiment were we measured survival, pollinator visits and seed output of F. thurifera plants growing inside and outside the canopy of P. chilensis. Flourensia thurifera individuals had a higher survival when growing within the canopy of P. chilensis and had lower pollinator visits and seed output compared to plants growing in open areas. Thus, we found a significant negative correlation between plant survival and seed output considering both conditions (inside or outside nurses), evidencing a tradeoff between these traits. The tradeoff evidenced here could have large impact at the population and community level. On one hand, this tradeoff could mask possible nurse effects in other species, since they could show a similar net fitness in both microhabitat (inside or outside nurses). Finally, we propose a theoretical model to assess the change in the shape of this tradeoff under future climatic conditions where temperature and precipitation are predicted to vary due to climate change.
英文关键词	climate change facilitation Mediterranean ecosystem nurse effect pollination tradeoff
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000531389000001
WOS关键词	POSITIVE INTERACTIONS ; SOIL-MICROORGANISMS ; SPECIES RICHNESS ; SMALL MAMMALS ; NURSE PLANTS ; COMPETITION ; SHRUBS ; OFFS ; ESTABLISHMENT ; MICROHABITAT
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324424
作者单位	[Molina-Montenegro, Marco A.; Baldelomar, Mariela] Univ Talca, Inst Ciencias Biol, Avda Lircay S-N, Talca, Chile; [Molina-Montenegro, Marco A.] Univ Catolica Norte, Ctr Estudios Avanzados Zonas Aridas CEAZA, Coquimbo, Chile; [Molina-Montenegro, Marco A.] Univ Catolica Maule, Ctr Invest Estudios Avanzados Maule, Talca, Chile; [Atala, Cristian] Pontificia Univ Catolica Valparaiso, Fac Ciencias, Inst Biol, Valparaiso, Chile; [Torres-Diaz, Cristian] Univ Bio Bio, Dept Ciencias Basicas, Chillan, Chile
推荐引用方式 GB/T 7714	Molina-Montenegro, Marco A.,Baldelomar, Mariela,Atala, Cristian,et al. A tradeoff between fitness-related traits mask facilitation in a semiarid ecosystem[J],2020,129(8):1196-1203.
APA	Molina-Montenegro, Marco A.,Baldelomar, Mariela,Atala, Cristian,&Torres-Diaz, Cristian.(2020).A tradeoff between fitness-related traits mask facilitation in a semiarid ecosystem.OIKOS,129(8),1196-1203.
MLA	Molina-Montenegro, Marco A.,et al."A tradeoff between fitness-related traits mask facilitation in a semiarid ecosystem".OIKOS 129.8(2020):1196-1203.