Consequences of land use changes on seed fate and demography in the palm tree Syagrus coronata (Mart.) Becc. (Arecaceae)

Pereira, Crisliane J.; Silva, Jhonathan O.; Rodrigues, Priscyla Maria Silva; Cavalcanti, Airton C.

doi:10.1007/s12224-022-09406-1

Cited by 4 publications

(16 citation statements)

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“…This species is a late successional colonizer and has greater growth when subjected to reduced levels of luminosity (Carvalho et al, 2006;Porto et al, 2018). Its seeds are considered recalcitrant, are highly sensitive to desiccation (Rodrigues, 2004), in which the burying is recommended (Pereira et al, 2021). Studies with species of the same genus achieved satisfactory results for field germination (Oliveira et al, 2019).…”

Section: Direct Seeding As a Recruitment Alternative For The Threaten...mentioning

confidence: 99%

“…It is an important Non-Timber Forest Product (Lima et al, 2020). It plays a vital role in the income of traditional populations and small farmers (Campos et al, 2019;Silva et al, 2020;Pereira et al, 2021). It is commonly used for the provision of fodder, food, fibers, oils and medicinal products (Campos et al, 2019).…”

Section: Direct Seeding As a Recruitment Alternative For The Threaten...mentioning

confidence: 99%

“…The total annual precipitation varies from 750 to 800 mm, the dry season occurs between July and October with an average precipitation of 205 mm and an average precipitation of 392 mm in the summer rainy season, which occurs from December to April. The annual temperature varies between 25° and 29°C (Souza and Reis, 2020;Pereira et al, 2021).…”

Section: Study Areamentioning

confidence: 99%

“…The legal reserve consists of fragments of secondary vegetation, consisting of hypoxerophilous vegetation and tall trees, which reach up to 15 meters in height. It has not been selectively logged for 12 years, and it has been undergoing regeneration process for over 60 years (Pereira et al, 2021). Despite having maintained plant cover, it is possible to verify the free movement of cattle.…”

Section: Study Areamentioning

confidence: 99%

“…Environments with little forest cover, such as pastures, are characterized by a lack of vegetative propagules (Guarino and Scariot, 2014;Souza-Silva et al, 2015), high predation of seeds and seedlings by livestock (Hordijk et al, 2019), and high soil degradation (Souza and Reis, 2020). Additionally, competition with exotic grasses act as inhibitors of natural regeneration, restricting the restoration of native plants (Souza-Silva et al, 2015;Pereira et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Direct seeding as a recruitment alternative for the threatened tropical palm Syagrus coronata (Mart.) Beccari in Brazilian dry forest

et al. 2022

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Habitat loss reduces biodiversity and threatens ecological services. The use of techniques for vegetation restoration such as direct seeding seems promising, mainly because it reduces costs and labor. The aim of this study was to investigate which are the main ecological filters that can inhibit the success of direct seeding, using Syagrus coronata (Mart.) Beccari (Arecaceae), a species that has great ecological and extractive importance for the Brazilian semi-arid region, and is found in habitats with different management intensities. The following hypotheses were tested: (1) managed habitat (pasture) and natural habitat (caatinga vegetation) show differences in seed fate; and (2) defleshed fruits will have greater seed germination success compared to not defleshed. Seed fate was evaluated for two consecutive years, year I (2016-2017) and year II (2017-2018). Within these years, 800 mature fruits were buried along 300 m transects, half with defleshing treatment, and monitored during 240 days. The highest seed survival occurred in year II, this result may be associated with higher rainfall recorded during the experiment, considering that there was no difference in seed germination between habitats. Defleshing facilitated germination and reduced insect predation, likely by removing invertebrate larvae before they have reached the seed. Desiccation was the major cause of mortality in the entire study and was higher in the managed habitat. Water insufficiency may have caused the deactivation of antioxidant mechanisms and affected the embryo. Although defleshing may favor germination, this procedure would not be indicated for pastures as it favors desiccation. The study showed how habitat management and fruit defleshing can affect seed fate. More studies on ecological relationships need to be carried out to increase understanding of how habitat modification affects the functioning of arid ecosystems.

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Section: Direct Seeding As a Recruitment Alternative For The Threaten...mentioning

confidence: 99%