دورية أكاديمية
Host sanctions in Panamanian Ficus are likely based on selective resource allocation.
| العنوان: | Host sanctions in Panamanian Ficus are likely based on selective resource allocation. |
|---|---|
| المؤلفون: | Jandér KC; Department of Organismic and Evolutionary Biology, Level 4 MCZ Labs, 26 Oxford Street, Harvard University, Cambridge, Massachusetts 02138, USA cjander@oeb.harvard.edu.; Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut USA.; Smithsonian Tropical Research Institute, Unit 9100 Box 0948, DPO, AA 34002-9998 USA., Herre EA; Smithsonian Tropical Research Institute, Unit 9100 Box 0948, DPO, AA 34002-9998 USA. |
| المصدر: | American journal of botany [Am J Bot] 2016 Oct; Vol. 103 (10), pp. 1753-1762. Date of Electronic Publication: 2016 Aug 25. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Wiley Country of Publication: United States NLM ID: 0370467 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1537-2197 (Electronic) Linking ISSN: 00029122 NLM ISO Abbreviation: Am J Bot Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: <2018-> : [Philadelphia, PA] : Wiley Original Publication: Baltimore Md : Botanical Society Of America |
| مواضيع طبية MeSH: | Pollination* , Symbiosis*, Ficus/*physiology , Wasps/*physiology, Animals ; Larva/growth & development ; Larva/physiology ; Panama ; Reproduction ; Wasps/growth & development |
| مستخلص: | Premise of the Study: Fig trees and their pollinators, fig wasps, present a powerful model system for studying mutualism stability: both partners depend on each other for reproduction, cooperation levels can be manipulated, and the resulting field-based fitness quantified. Previous work has shown that fig trees can severely reduce the fitness of wasps that do not pollinate by aborting unpollinated figs or reducing the number and size of wasp offspring. Here we evaluated four hypotheses regarding the mechanism of sanctions in four Panamanian fig species. Methods: We examined wasp and fig samples from field experiments with manipulated levels of pollination. Key Results: In unpollinated figs, the fig wall and the wasp offspring had a lower dry mass. Unpollinated figs had as many initiated wasp galls as pollinated figs but fewer galls that successfully produced live wasp offspring. Across three experimentally increasing levels of pollination, we found nonlinear increases in fig wall mass, the proportion of wasp galls that develop, and wasp mass. Conclusions: Our data did not support the hypotheses that lack of pollination prevents gall formation or that fertilized endosperm is required for wasp development. While our data are potentially consistent with the hypothesis that trees produce a wasp-specific toxin in response to lack of pollination, we found the hypothesis that sanctions are a consequence of trees allocating more resources to better-pollinated figs more parsimonious with the aggregate data. Our findings are completely analogous to the selective resource allocation to more beneficial tissues documented in other mutualistic systems. (© 2016 Botanical Society of America.) |
| فهرسة مساهمة: | Keywords: Ficus; Moraceae; coevolution; cooperation; fig wasp; mutualism; partner choice; pollination; resource allocation; sanctions; species interaction |
| تواريخ الأحداث: | Date Created: 20160827 Date Completed: 20170523 Latest Revision: 20170523 |
| رمز التحديث: | 20231215 |
| DOI: | 10.3732/ajb.1600082 |
| PMID: | 27562207 |
| قاعدة البيانات: | MEDLINE |
كن أول من يترك تعليقا!