Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast China
When 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...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Italian Society of Silviculture and Forest Ecology (SISEF)
2014-02-01
|
Series: | iForest - Biogeosciences and Forestry |
Subjects: | |
Online Access: | https://iforest.sisef.org/contents/?id=ifor1020-007 |
id |
doaj-053ea85f1b34426b9022a45819310f9b |
---|---|
record_format |
Article |
spelling |
doaj-053ea85f1b34426b9022a45819310f9b2020-11-24T21:39:39ZengItalian Society of Silviculture and Forest Ecology (SISEF)iForest - Biogeosciences and Forestry1971-74581971-74582014-02-0171253210.3832/ifor1020-0071020Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast ChinaWang J0Zhang C1Zhao X2von Gadow K3The Key Laboratory for Forest Resources & Ecosystem Processes of Beijing, Beijing Forestry University, 100083 Beijing (China)The Key Laboratory for Forest Resources & Ecosystem Processes of Beijing, Beijing Forestry University, 100083 Beijing (China)The Key Laboratory for Forest Resources & Ecosystem Processes of Beijing, Beijing Forestry University, 100083 Beijing (China)Faculty of Forestry and Forest Ecology, Georg-August-University Göttingen, Büsgenweg 5, D-37077 Göttingen (Germany)When 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 was examined 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. Inter-annual 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 has shown that the degree of autonomy of the different plant organs influenced the trade-offs between reproduction and growth, which suggests a species- and sex-dependent modular autonomy.https://iforest.sisef.org/contents/?id=ifor1020-007Inter-annual Trade-offIntra-annual Trade-offDioecious SpeciesModular Autonomy |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wang J Zhang C Zhao X von Gadow K |
spellingShingle |
Wang J Zhang C Zhao X von Gadow K Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast China iForest - Biogeosciences and Forestry Inter-annual Trade-off Intra-annual Trade-off Dioecious Species Modular Autonomy |
author_facet |
Wang J Zhang C Zhao X von Gadow K |
author_sort |
Wang J |
title |
Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast China |
title_short |
Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast China |
title_full |
Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast China |
title_fullStr |
Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast China |
title_full_unstemmed |
Reproductive allocation of two dioecious Rhamnus species in temperate forests of northeast China |
title_sort |
reproductive allocation of two dioecious rhamnus species in temperate forests of northeast china |
publisher |
Italian Society of Silviculture and Forest Ecology (SISEF) |
series |
iForest - Biogeosciences and Forestry |
issn |
1971-7458 1971-7458 |
publishDate |
2014-02-01 |
description |
When 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 was examined 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. Inter-annual 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 has shown that the degree of autonomy of the different plant organs influenced the trade-offs between reproduction and growth, which suggests a species- and sex-dependent modular autonomy. |
topic |
Inter-annual Trade-off Intra-annual Trade-off Dioecious Species Modular Autonomy |
url |
https://iforest.sisef.org/contents/?id=ifor1020-007 |
work_keys_str_mv |
AT wangj reproductiveallocationoftwodioeciousrhamnusspeciesintemperateforestsofnortheastchina AT zhangc reproductiveallocationoftwodioeciousrhamnusspeciesintemperateforestsofnortheastchina AT zhaox reproductiveallocationoftwodioeciousrhamnusspeciesintemperateforestsofnortheastchina AT vongadowk reproductiveallocationoftwodioeciousrhamnusspeciesintemperateforestsofnortheastchina |
_version_ |
1725930048085557248 |