Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast China

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dc.contributor.authorWang, Juanen_ZA
dc.contributor.authorZhang, Chunyuen_ZA
dc.contributor.authorZhao, Xiuhaien_ZA
dc.contributor.authorVon Gadow, Klausen_ZA
dc.date.accessioned2015-12-08T06:38:52Z
dc.date.available2015-12-08T06:38:52Z
dc.date.issued2014-02
dc.descriptionCITATION: Wang, J., Zhang, C., Zhao, X., Von Gadow, K. 2014. Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast China. iForest, 7:25-32, doi:10.3832/ifor1020-007.en_ZA
dc.descriptionThe original publication is available at http://www.sisef.it/iforesten_ZA
dc.description.abstractWhen a plant increases resource allocation to reproduction from its limited reserves, the allocation to the other functions is reduced. Because of these trade-offs, differences in reproductive allocation are believed to result in relative differences in life history traits. Dioecious plants provide an excellent opportunity for detecting such possible trade-offs in resource allocation. This study aims to present a finding about the gender-based cost of reproductive allocation. The trade-off between reproduction and foliage biomass allocation was examined in Rhamnus davurica and Rhamnus schneideri at different modular levels (shoot/sub-branch, branch, and shrub/tree level). There were no intra-annual trade-offs between reproduction and foliage biomass in either sex of either species at shoot/sub-branch level, branch level and shrub level. Interannual trade-offs were detected in females for both species. Inter-annual trade-offs existed at all three different modular levels in R. schneideri females, while the evidence of inter-annual trade-offs was only detected at branch level in R. davurica females. At the population level, the sex ratio was female-biased in 2010, and it did not significantly deviate from 1:1 in 2011 in R. davurica. However, the sex ratios were significantly female-biased in both 2010 and 2011 in R. schneideri. This study show that the degree of autonomy of the different plant organs influences the trade-offs between reproduction and growth, which suggests a species- and sex-dependent modular autonomy.en_ZA
dc.description.urihttp://www.sisef.it/iforest/contents/?id=ifor1020-007
dc.description.versionPublisher's versionen_ZA
dc.format.extentpage 25-32 : illustrations
dc.identifier.citationWang, J., Zhang, C., Zhao, X., Von Gadow, K. 2014. Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast China. iForest, 7:25-32, doi:10.3832/ifor1020-007.en_ZA
dc.identifier.issn1971-7458
dc.identifier.otherdoi:10.3832/ifor1020-007
dc.identifier.urihttp://hdl.handle.net/10019.1/97670
dc.language.isoen_ZAen_ZA
dc.publisherItalian Society of Silviculture and Forest Ecologyen_ZA
dc.rights.holderItalian Society of Silviculture and Forest Ecologyen_ZA
dc.subjectRhamnus davuricaen_ZA
dc.subjectDioecious species -- Chinaen_ZA
dc.subjectRhamnus schneiderien_ZA
dc.subjectPlant resource allocation -- Chinaen_ZA
dc.subjectTrees -- Reproduction -- Chinaen_ZA
dc.subjectTemperate forests -- Chinaen_ZA
dc.titleReproductive allocation of two dioecious Rhamnus species in temperate forests of northeast Chinaen_ZA
dc.typeArticleen_ZA
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