Denis Loubry's scientific contributions

Publications (6)

Article
The early shedding of fruits while developing and maturing has been observed among two Caesalpiniaceae trees in the forest of French Guiana. Parasitism had no effect upon the shedding of fruits since Vouacapoua americana has a one large seed. Significative effects of parasitism on Dicorynia guianensis small seeds were observed at the time of emerge...
Article
The French Guianan forest is an evergreen rain forest that contains approximately 100 deciduous tree species. The taxonomical distribution of the deciduous character is widely spread, and its presence or absence among some taxa, as well as its ancient origin, are arguments in favour of an endogenous origin. Leaf-fall periodicity was studied on a sa...
Article
Dicorynia guianensis (Caesalpiniaceae) is an emergent forest tree from French Guiana. Its fruits and seeds have many morphological features in common with wind-dispersed species. The indéhiscent pods contain 1, 2 or 3 seeds. The farthest scattering distance observed did not exceed 30 m away from the parent tree. Seeds suffered from high rates of pr...

Citations

... Finally, Section 4 is devoted to the study of the spatial distribution of a tree species: Dicorynia guianensis. Dicorynia guianensis is a tropical tree species of the French Guiana characterized by an aggregated spatial pattern (Loubry, 1993;Collinet, 1997). The application of our methodology leads to the definition of clusters that are consistent with the ecological knowledge of the plot. ...
... To limit the damage caused by mining, operators are now obliged to rehabilitate mining sites by terracing the soil to homogenize soil structure and texture. After rehabilitation, gold miners are encouraged, but not obliged, to carry out ecological restoration of mining sites by reintroducing plant species [4]. Currently, revegetation is considered a management tool for the sustainable development of the mining industry and soil recovery [2]. ...
... DBH MAX for each species was estimated averaging values of the five largest individuals. RGR were calculated based on 20-year census data from permanent plots established in Paracou (Loubry 1994) Content courtesy of Springer Nature, terms of use apply. Rights reserved. ...
... The spatial distribution of individuals of a species is largely related to the mode of dissemination of diaspores (Howe et Smallwood, 1982;Sabatier, 1983;Foresta (De) et al., 1984;Gautier-Hion et al., 1985;Howe, 1989;Cabrara & Gignoux, 1990;Koukou, 1992;Loubry, 1993Loubry, & 1994Collinet, 1997;Walter, 2006), to their natural regeneration (Forget, 1988;Puig et al., 1989;Bariteua, 1993;Ribbens et al., 1994, Pascal, J.P. et Pelissier, R., 1995, and to microenvironmental conditions (Puig et al., 1989;Sabatien et al., 1997;Clark et al., 1998;Condit et al., 2000) as well as to soil conditions (Forget, 1988;Puig et al, 1989 ;Barthes, 1991 ;Boyemba, 2011 ;Katusi, 2015 ) because the latter (soil conditions) are likely, at short distances, to vary significantly in aggregation or not (Darrieu de Madron, 1989 ;Koukou, 1994 Yoko. In addition, within the two sites; there appears a negative correlation between sand and clay (R = -0.94) ...