Genetic Mosaics in Strangler Fig Trees: Implications for Tropical Conservation

  title={Genetic Mosaics in Strangler Fig Trees: Implications for Tropical Conservation},
  author={James D. Thomson and Edward Allen Herre and James L. Hamrick and Judy L. Stone},
  pages={1214 - 1216}
Single trees of six species of strangler figs (Ficus spp., Moraceae) in Panama were found to be made up of multiple genotypes, presumably formed by the fusion of different individuals. The phenomenon is frequent enough that strangler fig populations will contain considerably more genetic variation than would be expected from the number of trees. How this cryptic variation affects populations depends on the flowering phonology of composite trees. If the genetically different portions of trees… Expand
The breeding structure of a tropical keystone plant resource
Paternity analysis techniques are used to reconstruct the genotypes of pollen donor trees and to estimate pollen dispersal distances and breeding population size parameters for Panamanian populations of seven species of monoecious strangler figs, a particularly widespread and influential group of keystone producers. Expand
Paternity analysis of the breeding structure of strangler fig populations: evidence for substantial long-distance wasp dispersal
The results of this study suggest that fig wasps may be more effective at colonizing isolated fig populations than previously thought. Expand
An overview of studies on a community of Panamanian figs
These studies suggest the critical role for comparative work of many species, preferably at many sites, in the understanding of this complex mutualism of monoecious figs. Expand
Reproductive and Genetic Consequences of Forest Fragmentation: Two Case Studies of Neotropical Canopy Trees
The observed patterns of dispersal in S. mombin and Ficus demonstrate the potential for ecologically and evolutionarily significant pollinator and pollen movement among populations occurring in both disturbed and continuous forest environments, and demonstrates how the conservation of biodiversity in spatially isolated reserves may be dependent on the preservation of forest elements in a surrounding fragmented landscape. Expand
Multi-stemmed trees of Nothofagus pumilio second-growth forest in Patagonia are formed by highly related individuals.
Tree clusters that are merged at the edge of the second-growth forest of N. pumilio are composed of stems of the same genotype and of other genotypes that are highly related (but not always). Expand
Within-Crown Flowering Synchrony in Strangler Figs, and Its Relationship to Allofusion1
Fl flowering phenology at the level of individual branches within strangler fig trees was studied to determine whether branches bloomed asynchronously within trees and whether asynchrony, if observed, could be ascribed to genetically different branches of mosaic trees undergoing individual flowering cycles that were out of phase with each other. Expand
Strangler fig-host associations in roadside and deciduous forest sites, South India
The results of this study suggest that stranglers are fully capable of regenerating on other stranglers, including conspecifics, but these regeneration events are not observed in forests because of relatively low strangler seed rain, due to lack of clumping of strangler hosts, and low insolation in these habitats. Expand
Comparative phenology of epiphytic and tree-phase strangler figs in a Venezuelan palm savanna
P Pattems of leaf production and loss are interpreted to be responses to water deficits suffered by epiphytes, deficits that are at least partially overcome when plants becomes deeply rooted in the ground. Expand
Pollinators, Flowering Plants, and Conservation Biology
The importance of interactions among organisms, specifically the role that pollinators play as links in communities, is emphasized, and the extent of dependence and linkage in pollination interactions is still rudimentary. Expand
Higher reproductive success for chimeras than solitary individuals in the kelp Lessonia spicata but no benefit for individual genotypes
At the population level, chimerism affects L. spicata reproductive success by allowing the coexistence of a higher density of potential reproducers and mates compared to a scenario with only non-chimeric thallus, and may have an important effect on the effective population size and possibly in reducing selfing rates. Expand


Are Figs Always Keystone Resources for Tropical Frugivorous Vertebrates? A Test in Gabon
It is shown that figs are infrequently eaten by most species, and are always eaten in small amounts, and cannot sustain most populations of frugivorous species during periods of low fruit availability in Gabon. Expand
How to be a Fig
The Wiebes’ chapter in this volume is the most recent review of the details of the interaction of fig wasps with figs, and stresses interactions among many parts of the system. Expand
A simulation model developed examines the consequences of population-level flowering asynchrony for individual reproductive success and long-term pollinator maintenance with- in monoecious fig populations and points to the need for precise phenological data for estimating plant fitness and population structure both in models and in the field. Expand
Growth habits, host tree species, and density of hemiepiphytes on Barro Colorado Island, Panama
Hemiepiphytes in a moist lowland forest were studied to ascertain their relative abundance, host specificity, growth habits, and spatial patterning. Ten percent of the trees support hemiepiphytesExpand
The Evolution of Allorecognition Specificity in Clonal Invertebrates
This paper evaluates the strengths and weaknesses of the selectionist and nonselectionist theories that have been proposed to account for the evolution and persistence of allotypesic polymorphism and suggests that frequency-dependent or spatially variable selection are the strongest candidates for the maintenance of allotypic variation. Expand
in Conservation Biology, M
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