Seed dispersal effectiveness by oilbirds (<i>Steatornis caripensis</i>) in the Southern Andes of Colombia

Cárdenas, Sasha; Echeverry‐Galvis, María Ángela; Stevenson, Pablo R.

doi:10.1111/btp.12908

Cited by 7 publications

(2 citation statements)

References 59 publications

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“…Viable palm seeds have also been reported inside stomachs or in the dung of ungulates (e.g. Beck, 2006; Bodmer & Ward, 2006; Barcelos et al ., 2013), carnivores (Kays, 1999; Campos et al ., 2012), birds (Pizo & Simão, 2001; Cárdenas, Echeverry‐Galvis & Stevenson, 2021), primates (Stevenson & Link, 2010; Chaves, Stoner & Arroyo‐Rodríguez, 2012), turtles (Liu, Platt & Borg, 2004; Caputo & Vogt, 2008) and fish (Sório, Damasceno‐Junior & Parolin, 2015; Barbosa & Montag, 2017). Our review shows that seeds of more than 30 palm species have been reported to benefit from gut treatment that involves seed defecation.…”

Section: Interaction Outcomes In Palm–frugivore Interactionsmentioning

confidence: 99%

The mutualism–antagonism continuum in Neotropical palm–frugivore interactions: from interaction outcomes to ecosystem dynamics

Dracxler

Kissling

2021

Biological Reviews

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Frugivory, that is feeding on fruits, pulp or seeds by animals, is usually considered a mutualism when interactions involve seed dispersal, and an antagonism when it results in the predation and destruction of seeds. Nevertheless, most frugivory interactions involve both benefits and disadvantages for plants, and the net interaction outcomes thus tend to vary along a continuum from mutualism to antagonism. Quantifying outcome variation is challenging and the ecological contribution of frugivorous animals to plant demography thus remains little explored. This is particularly true for interactions in which animals do not ingest entire fruits, that is in seed‐eating and pulp‐eating. Here, we provide a comprehensive review of Neotropical palm–frugivore interactions, with a focus on how frugivore consumption behaviour (i.e. digestive processing, fruit‐handling ability and caching behaviour) and feeding types (fruit‐eating, pulp‐eating and seed‐eating) influence interaction outcomes at different demographic stages of palms. We compiled a total of 1043 species‐level palm–frugivore interaction records that explicitly captured information on which parts of palm fruits are eaten by animals. These records showed consumption of fruits of 106 Neotropical palm species by 273 vertebrate species, especially birds (50%) and mammals (45%), but also fish (3%) and reptiles (2%). Fruit‐eating involved all four taxonomic vertebrate classes whereas seed‐eating and pulp‐eating were only recorded among birds and mammals. Most fruit‐eating interactions (77%) resulted in positive interaction outcomes for plants (e.g. gut‐passed seeds are viable or seeds are successfully dispersed), regardless of the digestive processing type of vertebrate consumers (seed defecation versus regurgitation). The majority of pulp‐eating interactions (91%) also resulted in positive interaction outcomes, for instance via pulp removal that promoted seed germination or via dispersal of intact palm seeds by external transport, especially if animals have a good fruit‐handling ability (e.g. primates, and some parrots). By contrast, seed‐eating interactions mostly resulted in dual outcomes (60%), where interactions had both negative effects on seed survival and positive outcomes through seed caching and external (non‐digestive) seed dispersal. A detailed synthesis of available field studies with qualitative and quantitative information provided evidence that 12 families and 27 species of mammals and birds are predominantly on the mutualistic side of the continuum whereas five mammalian families, six mammal and one reptile species are on the antagonistic side. The synthesis also revealed that most species can act as partial mutualists, even if they are typically considered antagonists. Our review demonstrates how different consumption behaviours and feeding types of vertebrate fruit consumers can influence seed dispersal and regeneration of palms, and thus ultimately affect the structure and functioning of tropical ecosystems. Variation in feeding types of anim...

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Section: Interaction Outcomes In Palm–frugivore Interactionsmentioning

confidence: 99%

The mutualism–antagonism continuum in Neotropical palm–frugivore interactions: from interaction outcomes to ecosystem dynamics

Dracxler

Kissling

2021

Biological Reviews

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“…Seed dispersal effectiveness serves as an indicator of the mutualistic relationship between plants and animals and is utilized to assess the role of animals in plant regenera-tion [18,19]. Over the last 15 years, seed dispersal by frugivores has been widely studied in primates [10,20], frugivorous birds [21,22], tortoises [23], and ungulates [24]. At the same time, our knowledge of seed dispersal effectiveness by frugivores has also greatly increased.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Potential Seed Dispersal Effectiveness of Malus sieversii (Lebed.) M. Roem. by Cattle

Bai,

Xu,

et al. 2023

Diversity

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The success of plant reproduction is highly dependent on effective seed dispersal. This study aimed to evaluate the potential seed dispersal effectiveness of cattle for Malus sieversii. The impact of cattle on the dispersal quantity and dispersal quality of M. sieversii seeds was explored based on camera trapping, GPS tracking, and germination trials. The results showed that, on average, cattle visited M. sieversii trees 477.33 times during a two-month observation period. Out of these visits, 315 were specifically for fruit removal. The fruit removal rate per cattle visit was as high as 96.67%. Additionally, cattle were able to disperse M. sieversii seeds up to a maximum distance of 533.67 m, with an average dispersal distance of 134.62 m. The average distance of cattle movement was recorded as 176.95 m/h, with peak activity observed during 11:00–13:00 and 19:00–21:00. The germination rate of M. sieversii seeds that passed through the digestive tract of cattle was significantly higher than that of control seeds. Finally, the emergence rate and survival rate of seeds dispersed by cattle to forest edges and gaps were significantly higher than those dispersed to understory. These findings suggest that cattle can serve as effective long-distance dispersers of M. sieversii seeds and may play a crucial role in the regeneration and expansion of M. sieversii populations in the Ili Botanical Garden.

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Mountain Gradients in the Neotropics: A Bracken Fern Perspective

Calcagno-Pissarelli¹,

Avila-Núñez²,

Alonso‐Amelot³

2023

Neotropical Gradients and Their Analysis

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Seed dispersal effectiveness by oilbirds (Steatornis caripensis) in the Southern Andes of Colombia

Cited by 7 publications

References 59 publications

The mutualism–antagonism continuum in Neotropical palm–frugivore interactions: from interaction outcomes to ecosystem dynamics

The mutualism–antagonism continuum in Neotropical palm–frugivore interactions: from interaction outcomes to ecosystem dynamics

Evaluation of the Potential Seed Dispersal Effectiveness of Malus sieversii (Lebed.) M. Roem. by Cattle

Mountain Gradients in the Neotropics: A Bracken Fern Perspective

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