Flora das cangas da Serra dos Carajás, Pará, Brasil: Urticaceae

Gaglioti, André Luiz; Almeida-Scabbia, Renata Jimenez de; Neto, Sergio Romaniuc

doi:10.1590/2175-7860201667554

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…The genus Cecropia represented more than 30% of the seeds retrieved from the traps under artificial perches in the CEF. This genus is typical of regenerating forest and produces soft fruit with small seeds that are very attractive to many animals (Gaglioti et al 2016). The birds that landed on the artificial perches in the CEF and defecated seeds would have fed on fruit produced in the surrounding areas of forest.…”

Section: Discussionmentioning

confidence: 99%

Artificial perches for the supply of seeds in a fragmented landscape in southwest Brazilian Amazon

Alencar

Guilherme

2020

Braz. J. Bot

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Artificial perches can provide an important supply of seeds and contribute to ecological restoration. In the present study, we verified the effectiveness of artificial perches for the dispersal of seeds in an area of the southwest Brazilian Amazon. We conducted the study on the Catuaba Experimental Farm in State of Acre, Brazil, from March 2016 to March 2017. We installed seed traps with artificial perches and control traps at different distances from the adjacent forest. We collected 19,865 seeds in boxes under the artificial perches and 1300 in the control traps. There was greater richness of plant species and abundance of seeds in the boxes under the artificial perches when compared with the control traps. The artificial perches at a distance of 40 m from the adjacent forest presented a greater species richness and distinct composition of plants. The quantity of dispersed seeds did not correlate with precipitation, although there was a correlation between rainfall and the fresh seed mass. The artificial perches were efficient at dispersing seeds and are a low-cost technique that can be used as a strategy for the regeneration of forests in degraded areas.

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Section: Discussionmentioning

confidence: 99%

Artificial perches for the supply of seeds in a fragmented landscape in southwest Brazilian Amazon

Alencar

Guilherme

2020

Braz. J. Bot

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“…In the present study, seeds of the genera Cecropia and Miconia were the most abundant in the fecal samples collected. Cecropia and Miconia are pioneer plants that produce succulent fruits with minuscule seeds throughout the year (Gaglioti, Scabbia, & Romaniuc-Neto, 2016), which would likely account for the large numbers of seeds from the two genera found in the fecal samples collected during the present study. Cecropia latiloba presented the highest index of importance due to the large numbers of its seeds in the fecal samples.…”

Section: Discussionmentioning

confidence: 92%

Bird-plant interactions on the edge of a forest fragment in southwestern Brazilian Amazonia

Alencar¹,

Guilherme²

2020

Acta Sci. Biol. Sci.

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Seed dispersal is one of the principal ecological processes that determine the richness and distribution of plants in tropical forests. Birds play an important role in the zoochoric dispersal of seeds in these forests. The present study investigated the bird-plant interactions involving the ingestion and dispersal of seeds by the birds found in the edge habitat of an isolated forest fragment on the Catuaba Experimental Farm in eastern Acre, in southwestern Brazilian Amazonia. The birds were captured using mist nets, and the seeds were collected from fecal samples obtained during the handling of the animals. These seeds were sorted and identified. The bird and the plant species identified during the study were used to calculate the connectivity and nestedness of the bird-plant interactions. We captured 82 species of birds, with a total sampling effort of 203,180 h.m². Fecal samples obtained from 19 of the bird species contained a total of 2,086 seeds, representing 23 plant species. The interaction network had an intermediate connectance, and significant nestedness. Ramphocelus carbo had the highest importance index and was the bird with the largest number of plant interactions, while Cecropia latiloba was the plant with the highest importance index, followed by Schefflera morototoni. Most of the seed-dispersing birds identified in the present study are generalists found in both the forest core and its edge. The results of the study indicated that the community of generalist-frugivore birds interacts extensively with the plant community of the fragment, providing seed dispersal services that include the deforested areas adjacent to the fragment.

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“…Based on literature data on floral resources available from plant species, Chamaecrista type, Solanum type, Myrcia types 2 and 3, Psidium type, Brosimum type and Laporteaaestuans type are probably related to other pollen sources (Machado & Lopes, 2006;Gressler et al, 2006;Pederneiras et al, 2011;Gaglioti et al, 2016), but they were little exploited by this population of C. flavifrons in the temporal window analyzed. Although Stigmaphyllon species are exploited for pollen by Centridini bees (Sigrist & Sazima, 2004), the frequency of occurrence S. blanchetii type in our samples suggested that the related plant was exploited only by oil.…”

Section: Discussionmentioning

confidence: 99%

Bee Life in the City: an Analysis of the Pollen Provisions of Centris (Centris) flavifrons (Centridini) in an Urban Area

Dórea¹,

Santos²,

Aguiar³

et al. 2017

Sociobiology

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Due to deforestation and fragmentation of ecosystems, the management of bee populations targeting pollination services is increasingly urgent. Because urban environments are stressful, the dietary knowledge in such areas can help to cope with this issue in the near future. Using palynological analysis the floral resources used by Centris flavifrons, an important pollinator of crops and native plants was studied in an urban area. Byrsonima sericea type, Solanum paniculatum type, Cestrum type, and Myrcia type 1 together accounted for more than 93% of pollen grains foraged by females. It is noteworthy that this bee population depends on few plant species both for pollen and for oil. Furthermore, females showed flexibility to replace the primary pollen source in different breeding seasons, as well as one female could provision different cells in the same nest with different predominant pollen types. The importance of wastelands and natural areasis highlighted for keeping bee populations in urban areas. Amid discussions about loss of biodiversity, urban areas are seen with a potential to promote diversity as a result of designing and planning the cities to foster interaction between people and nature (Miller, 2005). Centris (Centris) flavifrons (Fabricius) has mainly a Neotropical distribution, occurring also in the Nearctic region in Sinaloa, Mexico (Moure et al., 2012) and is an important pollinator of Malpighia emarginata L., called West Indian cherry, and others agricultural crops, for example Passiflora alata Curtis (Gaglianone et al., 2010;Vilhena et al., 2012). It has also an important role in native plant species pollination in the Neotropical region, especially of Malpighiaceae, e.g. Sociobiology

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Flora das cangas da Serra dos Carajás, Pará, Brasil: Urticaceae

Cited by 5 publications

References 6 publications

Artificial perches for the supply of seeds in a fragmented landscape in southwest Brazilian Amazon

Artificial perches for the supply of seeds in a fragmented landscape in southwest Brazilian Amazon

Bird-plant interactions on the edge of a forest fragment in southwestern Brazilian Amazonia

Bee Life in the City: an Analysis of the Pollen Provisions of Centris (Centris) flavifrons (Centridini) in an Urban Area

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