Differential Germination of Two Closely Related Species of Solanum in Response to Bird Ingestion

Barnea, Anat; Yom‐Tov, Yoram; Friedman, Jacob E.

doi:10.2307/3565943

Cited by 102 publications

(77 citation statements)

References 13 publications

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“…Smaller seeds have a higher chance of dispersal than larger seeds for several [this study ;Desenne, 1994] during seed preparation Tapir [Janzen, 1981] Scarify seed coats of legumes Seeds do not germinate without damage to seed coat Heteromyid rodents [Vander Wall, 1990] Seed-decomposing (mycorrhizal) Reported to enhance seedling survival fungi in cheek pouches Agoutis [Forget, 1992] Scatter-hoarding rodents transport Positive influence on seedling establishment and bury seeds away from parent plant Tapir and peccary [Bodmer, 1991] Spitting palm seeds Transport seeds away from seed shadow Blackbirds [Barnea et al, 1990] Abrasion of seed coat…”

Section: Seed Size Influences the Probability Of Dispersalmentioning

confidence: 99%

Seed dispersal by neotropical seed predators

Norconk

Grafton

Conklin‐Brittain

1998

American J Primatol

120

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From a plant's perspective, the difference between a seed predator and a seed disperser should be straightforward: attract animals that will disperse seeds and defend seeds from potential predators. Unlike pulp‐eating frugivores, seed predators regularly encounter diverse plant protective mechanisms. The purpose of this paper is to examine feeding constraints, morphological adaptations, and the mechanical process of seed predation. While there is evidence that some seed predators cause severe losses to seed crops, there is also evidence that seed predators enhance seed dispersal and germination. We also examine four methods by which neotropical seed predators may contribute to dispersal. 1) Seed predators examined here ingested fruit when seeds were full‐sized, but not yet mature (i.e., seeds of mature fruit may be avoided by seed predators and available for dispersal by other frugivores). 2) Sympatric seed predators may ingest seeds from different plants thus reducing overall predator load on any individual plant. 3) Seed predators that manipulate seeds (e.g., remove pericarp and seed coat) may enhance germination if the prepared seeds are dropped, discarded, or buried and not ingested. 4) Small seeds may miss mastication and swallowed intact with a food bolus. The last mechanism is the most likely to contribute to seed dispersal by the widest array of vertebrate seed predators, but primate seed predators may facilitate seed dispersal using all four mechanisms. Therefore, the traditional dichotomy of seed predator vs. seed disperser oversimplifies the interactions between seed predators and plants. Am. J. Primatol. 45:103–126, 1998. © 1998 Wiley‐Liss, Inc.

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Section: Seed Size Influences the Probability Of Dispersalmentioning

confidence: 99%

Seed dispersal by neotropical seed predators

Norconk

Grafton

Conklin‐Brittain

1998

American J Primatol

120

View full text Add to dashboard Cite

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“…These different patterns show that germination can be affected by factors associated with both disperser and substrate. Moreover, studies with other plant species indicate that the germination rate is not affected, or may even improve, when seeds are sown in soil (Barnea et al 1990, 1991, Mangan et al 2010. Future studies should concentrate in detail the environmental factors that influence germination, in order to clarify their action mechanisms.…”

Section: Methodsmentioning

confidence: 99%

“…Barnea et al (1992) indicate that birds can increase the temporal and spatial distribution of ingested seeds thereby promoting their germination and the establishment of seedlings. The effects of seed ingestion are variable; it affects germination proportion, rate, and speed in different ways depending on the disperser species, even when researchers have studied closely related plant species and the same habitat (Barnea et al 1990, Izhaki & Safriel 1990, Traveset 1998, Traveset et al 2001, Paulsen & Högstedt 2002. In addition, the fruit pulp is known to contain chemicals that inhibit germination and its removal usually fosters the success of the embryo (Figueroa & Castro 2002, Robertson et al 2006.…”

Section: Introductionmentioning

confidence: 99%

Bird frugivory and seed germination of Myrsine umbellata and Myrsine lancifolia (Myrsinaceae) seeds in a cerrado fragment in southeastern Brazil

et al. 2011

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Birds are known to be important dispersers of plants, since the passage of seeds through the digestive tract often has a positive influence on germination percentage and speed. In this study, proportions of germination in different substrates were compared between Myrsine (Myrsinaceae) seeds collected manually and those ingested by birds. The guilds of birds that fed on M. umbellata and M. lancifolia were identified and comprise 24 and 12 species, respectively. A higher germination proportion was found among seeds defecated by birds and sowed in the study area. The study also found differences between the guilds of frugivores in both synchronopatric species. Therefore, we suggest that M. umbellata and M. lancifolia are important food sources by birds that play a positive influence for enhance germination of Myrsine.

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“…Crops of ripe fruits are thoroughly depleted by legitimate frugivores, particularly in the lowlands (Table 1). On average, species in well-preserved lowland habitats HERRERA Depending on the combination of plant and disperser species, seed ingestion by Mediterranean frugivorous birds may enhance germination or not, but there is no documented instance either of detrimental effects of bird ingestion on seed gernination or of seeds that obligately require bird ingestion to germinate (9,10,27,98). The consequences of seed dispersal by birds for seed survival, seedling ecology, and population recruitment of Mediterranean fleshy-fruited plants are still little known.…”

Section: Consequences Of Plant-bird Interactionsmentioning

confidence: 99%

PLANT-VERTEBRATE SEED DISPERSAL SYSTEMS IN THE MEDITERRANEAN: Ecological, Evolutionary, and Historical Determinants

Herrera¹

1995

Annu. Rev. Ecol. Syst.

235

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.Annual Reviews is collaborating with JSTOR to digitize, preserve and extend access to Annual Review of Ecology and Systematics. http://www.jstor.org Annu, Rev. Ecol. Syst. 1995. 26:705-27 Copyright 0 1995 by Annual Reviews Inc. ABSTRACTInvestigations on vertebrate seed dispersal systems in the Mediterranean show that extremely efficient plant-disperser mutualisms do not require, and thus are not evidence for, mutual evolutionary adjustments of participants. Current Mediterranean dispersal systems have apparently been shaped by means of 1. trophic and behavioral adaptations of birds morphologically preadapted to pre-existing plant resources, and 2. disperser-mediated processes of habitatshaping occurring at an ecological time scale. These processes depend on differential recruitment of plant species as a function of disperser preferences, rather than on adjustments based on evolutionary processes. On the plant side, there is a prevalence of historical and phylogenetic effects, which reflects a series of ecological limitations inherent to the interactions between plants and dispersal agents that constrain plant adaptation to dispersers. To test adaptive hypotheses and explanations, future investigations on Mediterranean plant-disperser systems should concentrate more on the animal than on the plant side of the interaction.

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Differential Germination of Two Closely Related Species of Solanum in Response to Bird Ingestion

Cited by 102 publications

References 13 publications

Seed dispersal by neotropical seed predators

Seed dispersal by neotropical seed predators

Bird frugivory and seed germination of Myrsine umbellata and Myrsine lancifolia (Myrsinaceae) seeds in a cerrado fragment in southeastern Brazil

PLANT-VERTEBRATE SEED DISPERSAL SYSTEMS IN THE MEDITERRANEAN: Ecological, Evolutionary, and Historical Determinants

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