Didelphis albiventris como indutor de germinação de Rapanea ferruginea (Myrcinaceae) em área de Cerrado, Mato Grosso do Sul, Brasil

Oliveira, Ademir Kleber Morbeck de; Leme, Frederico T. F.

doi:10.1590/s0073-47212013000400005

Cited by 5 publications

(6 citation statements)

References 19 publications

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“…Only Passiflora edulis Sims exhibited a higher germination percentage in the test group. In turn, Oliveira and Leme (2013) tested the germination potential of Rapanea ferruginea (Ruiz et Pav.) after passage through the digestive tract of D. albiventris and reported that both germination percentage and germination velocity were higher than for other treatments and a control group.…”

Section: Familymentioning

confidence: 99%

“…Many authors (e.g. Bocchese et al 2008, Camargo et al 2011, Oliveira & Leme 2013 consider that endozoochory is the most important of all of the various different animal-plant dispersal mechanisms. However, this interaction process can have varying results in terms of induction of germination because animals species' habits and behavior differ.…”

Section: Introductionmentioning

confidence: 99%

“…For example, small seeds can be damaged by gastric juices. As a result, several species may not be considered potential dispersers (Oliveira & Leme 2013).…”

Section: Introductionmentioning

confidence: 99%

“…In particular, little is known and has been studied about the contribution made by D. albiventris to dispersal of seeds and induction of germination. The few studies that do exist were conducted in Brazil, in the Cerrado, Southeast and South, investigating this marsupial's potential to contribute to regeneration of forest fragments, and the results suggest that it can be an effective disperser, since seeds remain intact even after defecation and it is tolerant of altered environments and of urbanization (Cáceres 2002, Cantor et al 2010, Oliveira & Leme 2013. In view of this knowledge gap and the fact that this is a common and widely-distributed species, including in degraded habitats, this study was conducted in a remnant of the Atlantic Rain Forest Domain in South Brazil to investigate: 1. intra-species and seasonal variations in fruit consumption by D. albiventris and its contribution to endozoochorous seed dispersal, and 2. the viability and speed of germination of seeds after passage through the animal's digestive tract.…”

Section: Introductionmentioning

confidence: 99%

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Endozoochory by Didelphis albiventris Lund, 1840 (Mammalia, Didelphimorphia) in a Semideciduous Seasonal Forest remnant in the South of Brazil

et al. 2017

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Seed dispersal is a process that is fundamental to maintenance of forest ecosystems, enabling plants to successfully germinate in sites that are favorable to their growth, minimizing risks of competition, the action of pathogens and predation by herbivores. Intraspecific and seasonal variations in fruit consumption by Didelphis albiventris, and its contribution to dispersal and germination of endozoochorous seeds were analyzed in a Semideciduous seasonal forest. The study was conducted at Morro do Coco, which is a hilly area in the municipal district of Viamão, RS, Brazil, bordering the shore of Guaíba lake (30º16’15”S, 51º02’54”W), between June 2013 and May 2014, with a total sampling effort of 2992 trap-nights. A total of 18 individuals were captured and 24 fecal samples were collected. Fruits were identified in 96% of the samples, corresponding to 18 plant species, belonging to 10 families. The most common species were Ficus cestrifolia and Syagrus romanzoffiana, which occurred in 66% of the samples, followed by Banara parviflora and Cecropia pachystachya, both with a 25% rate of occurrence. There were no differences between the richness of fruit consumed by males and females (t = 0.083; DF = 32; p = 0.934) and there were no seasonal variations (H = 3.165; p = 0.367). The greatest breadth of dietary niche occurred during the summer, when twice as many fruit species were recorded in the diet than during the autumn, which was the season with the smallest breadth. Both germination percentage and germination velocity of Ficus cestrifolia and Psidium sp. seeds increased after passage through the animals’ digestive tracts (percentage germination increased more than 40% and velocity was up to 7 times highest). Didelphis albiventris can be considered a frugivorous-omnivorous species, since fruit are an important item of its diet, and it contributes to dispersal of a large quantity of small endozoochorous seeds, increasing both germination percentage and germination velocity of some species.

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Section: Familymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…For example, small seeds can be damaged by gastric juices. As a result, several species may not be considered potential dispersers (Oliveira & Leme 2013).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Endozoochory by Didelphis albiventris Lund, 1840 (Mammalia, Didelphimorphia) in a Semideciduous Seasonal Forest remnant in the South of Brazil

et al. 2017

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“…Ocorre do México ao Uruguai (Otegui 1998) e no Brasil está presente desde a Bahia ao extremo sul do Rio Grande do Sul (Carvalho 2003), estado onde se encontra em todas as formações florestais (Sobral et al 2006). É uma espécie pioneira, cujos frutos de dispersão zoocórica, são produzidos em abundância (Lorenzi 1992, Backes & Irgang 2002, Carvalho 2003) e amplamente consumidos pela fauna, que se encarrega da dispersão das sementes, sendo seus principais agentes dispersores as aves (Pineschi 1990, Pizo et al 2002, Jesus & Monteiro Filho 2007, Basler et al 2009, Begnini & Castellani 2013, Kaminski 2013, mas também mamíferos (Kuhlmann 1975, Oliveira & Leme 2013.…”

Section: Introductionunclassified

Germinação De Sementes De Myrsine Coriacea (Primulaceae) Submetidas a Diferentes Tratamentos Para Superação Da Dormência

Lucas¹,

Gomes²,

Guarino³

et al. 2019

Iheringia Ser Bot

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RESUMO-Myrsine coriacea (Sw.) R. Br. ex Roem. & Schult. é uma espécie arbórea nucleadora e alvo de intensa frugivoria, contribuindo para deposição de sementes de outras espécies. Devido suas sementes permanecerem no banco de sementes do solo, favorece a regeneração florestal após distúrbios naturais ou antrópicos. Com o objetivo de testar diferentes métodos para superação da dormência das sementes, foram analisados os seguintes tratamentos: Controle (TC), Escarificação Química (TQ), Escarificação Mecânica (TM) e Escarificação Térmica (TT). Foram avaliados os parâmetros: Percentual de Germinação (PG %), Índice de Velocidade de Germinação (IVG) e Tempo Médio de Germinação (TMG/dias). Para todos os parâmetros, o TM foi o mais eficaz para promoção da germinação, pois elevou a porcentagem e a velocidade de germinação, observando-se maior número de sementes germinadas em menor espaço de tempo. O TQ adotado foi deletério, e por isso não é recomendado. Não houve diferença significativa entre TC e TT. Palavras chave: escarificação, restauração ecológica, sementes florestais ABSTRACT-Seed germination of Myrsine coriacea (Primulaceae) submitted to different dormancy breaking treatments. Myrsine coriacea (Sw.) R.Br. ex Roem. & Schult. is a tree species with nucleation characteristics and a target to frugivorous animals, which contributes to the seed deposition to other plants. M. coriacea seeds remain in the soil for long periods, regenerating the forest after natural and anthropogenic disturbances. Four different methods were analysed with the aim to verify different types of breaking seed dormancy: Control (TC); Chemical Scarification (TQ); Mechanical Scarification (TM); Thermal Scarification (TT). The following parameters were evaluated, percentage of germination (PG) (%), germination speed index (IVG), and mean time of germination (TMG) (days). For all the parameters, we found that TM was more efficient at promoting germination, because it increased the percentage and speed of germination, which was observed with more seeds germinating in a short period of time. Meanwhile no difference was noticed between TC and TT, and the TQ was deleterious and is not recommended to break seed dormancy.

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Frugivory and seed dispersal in the Cerrado: Network structure and defaunation effects

Carvalho¹,

Malhi²,

Menor

2023

Biotropica

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Seed dispersal is a key process for ecosystem functioning, especially in tropical environments, where it has profound ecological and evolutionary repercussions on the individual (Jordano et al., 2007), population ), community (Levine & Murrell, 2003), ecosystem (Rogers et al., 2021, and landscape (Villar et al., 2021) levels. One of the key elements for seed dispersal is the size of the interacting agents. Large plants usually have large seeds (Moles et al., 2005;Moles & Westoby, 2006;Thompson & Rabinowitz, 1989), which are better dispersed by medium-to largebodied frugivores (Corlett, 1998;Kitamura et al., 2002). However, large-bodied vertebrates represent one of the most highly endangered species groups in the world (Barnosky et al., 2011;Dirzo et al., 2014), commonly threatened by hunting, habitat destruction, fragmentation, selective-logging, and human-wildlife conflicts

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Didelphis albiventris como indutor de germinação de Rapanea ferruginea (Myrcinaceae) em área de Cerrado, Mato Grosso do Sul, Brasil

Cited by 5 publications

References 19 publications

Endozoochory by Didelphis albiventris Lund, 1840 (Mammalia, Didelphimorphia) in a Semideciduous Seasonal Forest remnant in the South of Brazil

Endozoochory by Didelphis albiventris Lund, 1840 (Mammalia, Didelphimorphia) in a Semideciduous Seasonal Forest remnant in the South of Brazil

Germinação De Sementes De Myrsine Coriacea (Primulaceae) Submetidas a Diferentes Tratamentos Para Superação Da Dormência

Frugivory and seed dispersal in the Cerrado: Network structure and defaunation effects

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