Frugivory and Seed Dispersal

Corlett, Richard T.

doi:10.1007/978-3-030-66877-8_7

Cited by 7 publications

(6 citation statements)

References 136 publications

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“…These biotic dependencies might help explain why the Hawaiian Islands have only three native orchids and no native figs. Seed dispersal mutualisms are generally less specialized than pollination [45], so it is less likely that a plant species that has achieved long-distance dispersal will fail to find local dispersal agents after arrival.…”

Section: (4) Predators Competitors and Mutualistsmentioning

confidence: 99%

The establishment of plants following long-distance dispersal

Milne

Liu

et al. 2023

Trends in Ecology & Evolution

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Section: (4) Predators Competitors and Mutualistsmentioning

confidence: 99%

The establishment of plants following long-distance dispersal

Milne

Liu

et al. 2023

Trends in Ecology & Evolution

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Section: Introductionmentioning

confidence: 99%

“…Fruit-frugivore interactions are critical for the dynamics, evolution, and conservation of plant communities worldwide 1 – 4 . Fruits provide frugivores with nutrients and water essential for their reproductive success and survival 4 . Plants benefit from the activity of certain frugivores by having their seeds dispersed which increases both local recruitment (i.e., short-distance dispersal) and also gene flow and the (re)colonization of vacant habitats (i.e., long-distance dispersal; 5 – 8 .…”

Section: Introductionmentioning

confidence: 99%

The seed dispersal syndrome hypothesis in ungulate-dominated landscapes

Fedriani,

Garrote,

Burgos

et al. 2024

Sci Rep

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The Seed Dispersal Syndrome Hypothesis (SDSH) posits that fruit traits predict the main dispersers interacting with plant species. Mammalian dispersers, relying heavily on olfactory cues, are expected to select dull-colored, scented, and larger fruits compared to birds. However, challenges like overabundant seed predators and context-dependency of frugivore-plant interactions complicate SDSH expectations. We studied the Iberian pear, Pyrus bourgaeana, an expected mammal-dispersed tree based on its fruit traits. Extensive camera-trapping data (over 35,000 records) from several tree populations and years revealed visits from seven frugivore groups, with ungulate fruit predators (59–97%) and carnivore seed dispersers (1–20%) most frequent, while birds, lagomorphs, and rodents were infrequent (0–10%). Red deer and wild boar were also the main fruit removers in all sites and years but acted as fruit and seed predators, and thus likely exert conflicting selection pressures to those exerted by seed dispersers. Although, as predicted by the SDSH, most Iberian pear fruits were consumed by large and medium-sized mammals, the traits of Iberian pear fruits likely reflect selection pressures from dispersal vectors in past times. Our results do not challenge the SDHS but do reveal the importance of considering frugivore functional roles for its adequate evaluation.

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“…Seed dispersal is a critical demographic process that strongly influences plant dynamics, the assembly of communities, and the functioning of many ecosystems. Seed dispersal is characterized by a myriad of costs and benefits (Bonte et al, 2012; Corlett, 2021; Fedriani & Delibes, 2011). Among the benefits, long‐distance seed dispersal (while typically rare) assists plant dynamics by facilitating gene flow, the connection of subpopulations, range extension, and the (re)colonization of vacant habitats (Bacles et al, 2006; González‐Varo et al, 2021; Nathan et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Seed dispersal effectiveness in fragmented and defaunated landscapes

Fedriani,

Wiegand,

Garrote

et al. 2023

Ecosphere

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Landscape fragmentation and defaunation have major impacts on plant dispersal and dynamics. However, whether the impact of such perturbations on seed dispersal and recruitment change in sign and strength across habitats and spatial scales, and whether they amplify or buffer each other, remains largely unknown. To evaluate, for the first time, the joint impact of fragmentation and defaunation on seed dispersal effectiveness (SDE) across spatial scales (e.g., short‐ and long‐distance seed dispersal), we utilized the long‐term field data of a mammal‐dispersed tree (Pyrus bourgaeana) in a spatially explicit individual‐based model. By means of simulation experiments, we evaluated the effects of different levels of landscape fragmentation and defaunation on SDE and tree recruitment. Our simulation results revealed that the direction and magnitude of the fragmentation effect on SDE depended on its strength (mild, severe) and the spatial scale considered. Severe fragmentation decreased SDE for short‐ and intermediate‐distance seed dispersal. Interestingly, mild and severe fragmentation increased SDE of long‐distance seed dispersal, suggesting a positive effect of such perturbations (i.e., an increase in the proportion of successful long‐distance dispersal events). Though defaunation had a consistently negative effect on overall SDE, its magnitude was highly species‐ and spatial–scale‐dependent. The impact of defaunation on seed dispersal distance was also species‐specific: the proportion of long‐distance dispersal increased under total badger (Meles meles) defaunation but decreased under total fox (Vulpes vulpes) defaunation. A pervasive integration of seed dispersal distance into the SDE framework is essential to most comprehensively understand the scale‐dependent nature of human activity impacts on plant dynamics. In the long term, strong perturbations (landscape fragmentation and defaunation) could select either for or against long‐distance seed dispersal, altering in different ways the ability of plants to cope with climate change.

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Frugivory and Seed Dispersal

Cited by 7 publications

References 136 publications

The establishment of plants following long-distance dispersal

The establishment of plants following long-distance dispersal

The seed dispersal syndrome hypothesis in ungulate-dominated landscapes

Seed dispersal effectiveness in fragmented and defaunated landscapes

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