The role of Lithodoras dorsalis (Siluriformes: Doradidae) as seed disperser in Eastern Amazon

Barbosa, Thiago Augusto Pedroso; Montag, Luciano Fogaça de Assis

doi:10.1590/1982-0224-20160061

Cited by 6 publications

(7 citation statements)

References 45 publications

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“…This influence can be positive when fruit processing in the gut favours germination, for example due to the breakage of seed dormancy and facilitation of germination, or negative when seeds are destroyed as a result of harsh or long gut treatment (Torres, Castaño & Carranza-Quiceno, 2020). Whether seeds benefit from gut treatment or not also depends on specific traits of seeds such as seed size and hardness (Verdú & (Liu, Platt & Borg, 2004;Caputo & Vogt, 2008) and fish (S orio, 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: (B) Gut Treatmentmentioning

confidence: 83%

“…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%

“…When viable palm seeds are deposited at sites that are suitable for germination, fruit‐eaters facilitate the establishment of seedlings. Such positive associations between fruit‐eating and seedling establishment of palms have been found for species of birds (Pizo & Simão, 2001 ; Sezen et al ., 2009 ; Karubian et al ., 2012 ), mammals (Fragoso, 1997 ; Fragoso & Huffman, 2000 ; Sica, Bravo & Giombini, 2014 ) and fish (Barbosa & Montag, 2017 ), involving palm species such as Attalea maripa , Euterpe edulis , Iriartea deltoidea , Oenocarpus bataua and Syagrus romanzoffiana . For instance, Fragoso, Silvius & Correa ( 2003 ) showed that the aggregation of viable Attalea maripa seeds in tapir latrines favours local seedling establishment and contributes to generating patches of A. maripa adult individuals, an association that was also observed for the Atlantic Forest palm Syagrus romanzoffiana (Sica et al ., 2014 ).…”

Section: Interaction Outcomes In Palm–frugivore Interactionsmentioning

confidence: 99%

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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: (B) Gut Treatmentmentioning

confidence: 83%

Section: Interaction Outcomes In Palm–frugivore Interactionsmentioning

confidence: 99%

Section: Interaction Outcomes In Palm–frugivore Interactionsmentioning

confidence: 99%

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

Dracxler

Kissling

2021

Biological Reviews

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“…First, most of tree species refers to those with primary seed-dispersal by vertebrates (i.e., gut-dispersal), although some species bear seeds that might be able to float; i.e., secondarily dispersed by water (Parolin et al, 2013(Parolin et al, , 2004. Others may be dispersed by mammal/birds and fishes (i.e., ichthyochory), particularly those species small seeds (Anderson et al, 2011(Anderson et al, , 2009, while others exhibit devices directly associated to hydrochory such as air-containing or spongy tissues (Barbosa & Montag, 2017;Wittmann et al, 2007). In both habitats (i.e., estuarine and floodplain forests), species bearing medium-sized (<1.5 cm length) and relatively light seeds (<2 g) predominate (Parolin, 2000).…”

Section: Discussionmentioning

confidence: 99%

Açaí palm management disturbs seed rain and soil seed bank of an Amazonian estuarine forest

et al. 2023

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The exploitation of non‐timber forest products has been proposed as a sustainable way to exploit tropical forests, but such an opportunity remains to be proved. Here, we examine the impact of intensive açaí palm (Euterpe oleracea) management on the seed rain and soil seed bank in an estuarine forest landscape with a long history of forest management by locals in the Amazon region. Seed rain (100 80 cm2 collectors) and soil seed bank (100 30 cm2 samples) were monitored through a year across 20 forest stands, covering a gradient of açaí stem density (50–3575 açaí stems per ha). Seed rain and bank were dominated by açaí seeds (85.5%–85.8%) and by excluding them, seed rain and bank were low density and species poor, capturing a tiny subset from the local (17.91%–19.40%) and landscape woody flora (11.82%–14.55%). Moreover, autochthonous and vertebrated‐dispersed predominated as well as those from tree species considered useful by locals. Overall, açaí stem density positively affected açaí seed abundance in the seed rain and negatively affected seed pools in the bank in relation to abundance of seeds and vertebrated dispersed, while adult tree species richness and density and accessibility to forest stands were associated with more diversified seed pools. Thereby, forest stands are exposed to different levels of açaí management (high vs. low intensity) supported taxonomically distinct seed pools. Our results suggest that açaí intensification disturbs seed rain and soil seed bank with potential impacts on forest regeneration and the forest integrity standards required to consider açaí fruit production as sustainable according to current legislation.

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“…This fact is corroborated by the presence in juvenile catches of B. filamentosum and C. undecimalis. These species are commonly found entering the estuaries, when salt variations are favorable, usually during periods of low rainfall [39,41] , seed dispersal species are more common during the rainy season, for example the species Lithodoras dorsalis which was collected in this study [42] . It was possible to observe during this study that the high presence of mangrove trees (e.g., A. germinans) and typical lowland percussion vegetation (e.g., Machaerium lunatum), showed high divergence in relation to habitats with less vegetation.…”

Section: Discussionmentioning

confidence: 99%

Target fishes from subsistence fishing in a riverine community from lower Pará River, Northern Amazonia

Rodrigues¹,

Machado²,

Oliveira³

et al. 2021

Int. J. Fish. Aquat. Stud.

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The goal of the present study was to realize an inventory of target fish of the subsistence fishery from Genipaúba Village, Santa Bárbara do Pará, Brazil. The inventory was carried out during local fisheries throughout the main river between March and April 2018. The collections were performed with gillnets of 25 to 40 mm of mesh size, and length variable according to fisherman. The collected specimens were preserved in 10% formaldehyde and posterior wash in running water to preservation in 70% alcohol solution. In the laboratory all fish were identified to the current taxonomic species level, measured in standard length (cm), and in total weight (g), then cataloged in the fish collection of the Aquatic Ecology Group at Federal University of Pará (GEA-UFPA). Overall 19 fish species belonging to 13 families and five taxonomic orders were recorded. Most individuals were represented by species (family), the South American silver croaker Plagioscion squamosissimus (Sciaenidae), Yellowfin river pellona Pellona flavipinnis (Pristigasteridae), Mapará Hypophthalmus marginatus (Pimelodidae), Driftwood catfish Trachelyopterus galeatus (Auchenipteridae). Some important species for commercial trade were recorded as well, such as the Goliath catfish Brachyplatystoma filamentosum (Pimelodidae) and the Common snook Centropomus undecimalis (Centropomidae). In spite of the collections consisting of few species, the study is the first inventory of the most common fish species used by riverines from Pará River for subsistence.

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The role of Lithodoras dorsalis (Siluriformes: Doradidae) as seed disperser in Eastern Amazon

Cited by 6 publications

References 45 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

Açaí palm management disturbs seed rain and soil seed bank of an Amazonian estuarine forest

Target fishes from subsistence fishing in a riverine community from lower Pará River, Northern Amazonia

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