Fenologia da frutificação de espécies vegetais nativas e a restauração florestal no arquipélago de Fernando de Noronha, PE, Brasil

Abstract

-(Fructification phenology of native plant species and the forest restoration in Fernando de Noronha archipelago, Pernambuco State, Brazil). The annual pattern of fructification phenology of 23 native species of trees and bushes of Fernando de Noronha, Pernambuco State, Brazil was characterized with the aim of guiding the seed collection towards the implementation of a local restoration program. It was found that most species (74%) presented higher absolute frequencies of fructification during the rainy season (January to July) as opposed to 26% during the dry season, and the fructification lasted, on average, one month and a half. The Spearman correlation coefficient indicated a positive correlation between the studied phenophases and the precipitation. This kind of study is strategic for planning the seed collection and seedling production for restoration programs, especially in places where the process of Ecological Restoration is just beginning and still lacks information, such as Fernando de Noronha.

Phenological patterns of zoochoric shrub and tree species in two areas of Ibura National Forest, Northeastern Brazil

“…Similar results regarding the cycles of flowering and fruiting for the period observed were found in other studies carried out in tropical forests (Mikich and Silva, 2001;Marques and Oliveira, 2004;Marchioretto et al, 2007;Machado et al, 2013). In tropical regions, such as Northeastern Brazil, the development of flowering for most species is stimulated by increased radiation and decreased precipitation, while fruiting is associated with increased precipitation and humidity (Marques and Oliveira, 2005;Luna-Nieves et al, 2017).…”

Rediscovery of Chiococca insularis (Ridley) C.M.Taylor & M.R.V. Barbosa (Rubiaceae), a species presumed extinct, on the island of Fernando de Noronha, Pernambuco, Brazil

“…The rainfall, however, can vary significantly from yearto-year and can be more than 2,000 mm or less than 500 mm in some years (Teixeira et al 2003). The archipelago has no perennial water source, but every year, as in other semi-arid regions, heavy and torrential rains during the rainy season abruptly fill the rivers and creeks, which dry out during the dry season (Ridley 1890;Machado et al 2013).…”

Making a Bad Situation Worse: An Invasive Species Altering the Balance of Interactions between Local Species

“…It is one of the most frequent [ 23 ] and widely distributed tree species on the island [ 27 ], in spite of being heavily logged during the first years of human settlement on the island [ 28 ]. Because of its wide distribution across the island and its potential use for the restoration of disturbed areas [ 29 ], this species was the focal species in all the experiments.…”