Éditeur(s) : Ministerio de Agricultura, Ganadería y Alimentación Ministerio de Agricultura, Ganadería y Alimentación ( Guatemala )
Résumé : (Statement of Responsibility) Guatemala, Ministerio de Agricultura, Ganadería y Alimentación
"Mayo de 1986."
Cover title.
(Funding) Electronic resources created as part of a prototype UF Institutional Repository and Faculty Papers project by the University of Florida.
Guatemala
Guatemala
Guatemala

71209788

Éditeur(s) : Boston : Estes and Lauriat
Siècle(s) traité(s) : 19
Provenance : Archives départementales de Guadeloupe
Permalien : http://www.manioc.org/patrimon/ADG18205
ADG18205

Éditeur(s) : Instituto de Ciencia y Tecnología Agrícolas, Sector Público Agrícola Instituto de Ciencia y Tecnología Agrícolas, Sector Público Agrícola ( Guatemala C.A )
Résumé : (Statement of Responsibility) ICTA.
"Marzo 1981."
(Funding) Electronic resources created as part of a prototype UF Institutional Repository and Faculty Papers project by the University of Florida.
Guatemala
Guatemala
Guatemala

71330055

Éditeur(s) : HAL CCSD Wiley
Résumé :  
Aims: Astrocaryum sciophilum (Miq.) Pulle (Arecaceae) is an understorey palm, endemic to north-eastern South America with a patchy distribution. We tested the hypothesis that the spatial distribution of this palm species is not in equilibrium but is slowly colonizing the forest understorey. Location: Inventories and seed dispersal studies were conducted in the undisturbed tropical forest close to the Nouragues research station, French Guiana. Additional data were collected in the entire territory of French Guiana. Methods: We studied the demography of A. sciophilum on a 20-ha plot located at the edge of its distribution. The age of the palms was estimated by postulating an exponentially decreasing abundance by age class. Direct seed dispersal experiments were also conducted, to estimate dispersal parameters. The seeds of A. sciophilum were dispersed only by rodents. This information was used to parameterize a forest growth simulator, to study the spatial spread of this species. Results: Within the sampling plot, the density of A. sciophilum dropped sharply from about 500 individuals per hectare to zero. The maturation age was estimated to be 170 ± 70 years, and over 55 years with 95% confidence. Seed-dispersal experiments yielded an average seed dispersal distance of 11 m and a maximum estimated dispersal distance of 125 m across a generational span of 55 years to maturity. Therefore, the maximal estimated colonization speed is 2.3 m/y. Conclusions: Empirical results and numerical simulations suggest that the boundary of the A. sciophilum population is a colonization front, and that the range of this species is slowly expanding. The implications of this result in respect of palaeoenvironmental changes in this region are discussed.
ISSN: 1466-822X

hal-01032154
https://hal.archives-ouvertes.fr/hal-01032154
DOI : 10.1046/j.1466-822X.2003.00020.x

Éditeur(s) : Ministerio de Agricultura, Ganaderi´a y Alimentacio´n. Ministerio de Agricultura, Ganadería y Alimentación. Ministerio de Agricultura, Ganaderi´a y Alimentacio´n. Ministerio de Agricultura, Ganadería y Alimentación. ( Guatemala )
Résumé : Description based on: 1991; title from cover.
Guatemala
Guatemala
Guatemala
Guatemala

222326964
2008229063

Éditeur(s) : Instituto de Ciencia y Tecnologâia Agrâicolas, Sector Pâublico Agrâicola, Ministerio de Agricultura Instituto de Ciencia y Tecnologâia Agrâicolas, Sector Pâublico Agrâicola, Ministerio de Agricultura ( Guatemala C.A )
Résumé : (Bibliography) Includes bibliographical references (p. 8).
(Statement of Responsibility) Sandra Patricia Calderâon M., Sergio Rolando Ruano A.
Cover title.
"Guatemala, C.A. ; Mayo, 1981."
"Disciplina de: Socioeconomâia Rural."
Guatemala -- Quezaltenango
Guatemala
Quezaltenango (Dept.)
Guatemala
Quezaltenango (Dept.)

76764548

Éditeur(s) : Instituto de Ciencia y Tecnologia Agricolas, Instituto de Ciencia y Tecnologia Agricolas,
Résumé : Caption title.
"Presentado en la XXVI Reunion Anual del PCCMCA, Guatemala, Guatemala, 24-28 de marzo de 1980"--Leaf 1.
Includes bibliographical references (leaf 5).
(Funding) Electronic resources created as part of a prototype UF Institutional Repository and Faculty Papers project by the University of Florida.
Guatemala -- Quetzaltenango.
Caribbean
Guatemala -- Quezaltenango.
Guatemala -- Quezaltenango.

ocm7265

Éditeur(s) : Sector Pâublico Agropecuario y de Alimentaciâon, Instituto de Ciencia y Tecnologâia Agrâicolas Sector Pâublico Agropecuario y de Alimentaciâon, Instituto de Ciencia y Tecnologâia Agrâicolas ( Guatemala C.A )
Résumé : (Statement of Responsibility) Vâictor Claudio Cordâon E..
Cover title.
"Guatemala, C.A. ; Agosto, 1986."
"Disciplina de Apoyo: Socioeconomâia Rural."
Guatemala -- Chiquimula
Guatemala
Chiquimula (Dept.)
Guatemala
Chiquimula (Dept.)

75967475

Éditeur(s) : University of the Virgin Islands University of the Virgin Islands
North America -- United States Virgin Islands
Caribbean

Éditeur(s) : Sector Pâublico Agropecuario y de Alimentaciâon, Instituto de Ciencia y Tecnologâia Agrâicolas Sector Pâublico Agropecuario y de Alimentaciâon, Instituto de Ciencia y Tecnologâia Agrâicolas ( Guatemala C.A )
Résumé : (Statement of Responsibility) Julio Amâilcar Martâinez Guerra.
Cover title.
"Guatemala, C.A. ; Enero, 1985."
"Disciplina de Apoyo: Socioeconomâia Rural."
Guatemala
Guatemala
Guatemala

74493231

Éditeur(s) : HAL CCSD Botanical Society of America
Résumé :  
To investigate the existence of coordinated sets of seedling traits adapted to contrasting establishment conditions, we examined evolutionary convergence in seedling traits for 299 French Guianan woody plant species and the stress response in a shadehouse of species representing seed size gradients within five major cotyledon morphology types. The French Guianan woody plant community has larger seeds than other tropical forest communities and the largest proportion of hypogeal cotyledon type (59.2%) reported for tropical forests. Yet the community includes many species with intermediate size seeds that produce seedlings with different cotyledonal morphologies. A split-plot factorial design with two light levels (0.8% and 16.1% PAR) and four damage treatments (control, seed damage, leaf damage, stem damage) was used in the shadehouse experiment. Although larger-seeded species had higher survival and slower growth, these patterns were better explained by cotyledon type than by seed mass. Even larger-seeded species with foliar cotyledons grew faster than species with reserve-type cotyledons, and survival after stem grazing was five times higher in seedlings with hypogeal cotyledons than with epigeal cotyledons. Thus, to predict seedling performance using seed size, seedling morphology must also be considered.
ISSN: 0002-9122

hal-01032177
https://hal.archives-ouvertes.fr/hal-01032177
DOI : 10.3732/ajb.94.6.901

Éditeur(s) : Instituto de Ciencia y Tecnologia Agricolas Instituto de Ciencia y Tecnologia Agricolas
Résumé : Caption title.
(Funding) Electronic resources created as part of a prototype UF Institutional Repository and Faculty Papers project by the University of Florida.
Guatemala.
Caribbean
Guatemala
Jalapa (Dept.)
Guatemala
Jalapa (Dept.)

ocm7134

Éditeur(s) : Cambridge : Harvard University Press
Extrait de : Contributions from the Harvard Institute for Tropical Biology and Medicine. 3

Droits : Domaine public
Provenance : Institut des Hautes Études de l'Amérique latine, Bibliothèque Pierre-Monbeig
Permalien : http://www.manioc.org/patrimon/IHE14010
IHE14010

Résumé : Written on verso: "The pods of the horse-radish tree. The one to the left has been split open so as to exhibit the seeds." Also: "Used 1922." Probably used by the Munson Steamship Line in their publication, The Cuba Review.
1920-1930
CHC5017
Cuba

Droits : http://merrick.library.miami.edu/digitalprojects/copyright.html
chc50170000880001001
1346

Éditeur(s) : HAL CCSD
Résumé : International audience
The relationships between Philodendron solimoesense and the larvae of two chalcid wasp species, inhabiting up to 88% of the infructescences, were studied in French Guiana. Exurus sp. (Chalcidoidea, Eulophidae, Tetrastichinae), is a gall maker and its larvae develop at the expense of seeds which are transformed into galls. We estimate that two seeds are necessary for the development of one eulophid. Their impact on plant reproductive success appears to be important, since parasitized fruits produce 60% fewer seeds than nonparasitized fruits and could explain the reduced seed set observed (53%). The larvae of a Sycophila sp. (Chalcidoidea, Eurytomidae, Eurytominae) are also present in the fruits of P. solimoesense occupied by eulophid larvae. The eurytomid larvae apparently develop at the expense of about one eulophid and are responsible for the death of 39% of them by direct predation or indirectly by consuming the gall tissues. Eulophids are far more abundant than eurytomids, since parasitized fruits contain an average of 11 eulophids but only one eurytomid. As chalcid wasp emergence takes place in a closed cavity and sex ratios are strongly biased in a given gall, local mate competition may occur as observed for fig wasps within figs.
International Journal of Plant Sciences

hal-01202708
https://hal.archives-ouvertes.fr/hal-01202708

Éditeur(s) : Instituto de Ciencia y Tecnología Agrícolas, Sector Público Agropecuario y de Alimentación Instituto de Ciencia y Tecnología Agrícolas, Sector Público Agropecuario y de Alimentación ( Guatemala C.A )
Résumé : "Octubre 1983."
(Funding) Electronic resources created as part of a prototype UF Institutional Repository and Faculty Papers project by the University of Florida.
Guatemala
Guatemala
Guatemala

71330680

Éditeur(s) : London : Saunders and Otley
Description : Découverte en 1493 par Christophe Colomb, l'île d'Antigua située dans les Petites Antilles sera baptisée ainsi en l'honneur de l'église de Santa Maria la Antigua de Séville. Elle sera plus tard colonisée par les Britanniques en 1632...
Siècle(s) traité(s) : 19
Droits : Domaine public
Provenance : Ville de Pointe-à-Pitre. Réseau des bibliothèques
Permalien : http://www.manioc.org/patrimon/PAP11082
PAP11082

Éditeur(s) : HAL CCSD Wiley
Résumé : Plant germination and development depend upon a seed's successful dispersal into a suitable habitat and its ability to grow and survive within the surrounding biotic and abiotic environment. The seeds of Aechmea mertensii, a tank-bromeliad species, are dispersed by either Camponotus femoratus or Neoponera goeldii, two ant species that initiate ant gardens (AGs). These two mutualistic ant species influence the vegetative and reproductive traits of the bromeliad through their divergent ecological preferences (i.e. light and substrate). We hypothesised that the seeds dispersed by these two ant species have underlying genetic differences affecting germination, growth and survival of A.mertensii seedlings in different ways. To test this, we used an experimental approach consisting of sowing seeds of A.mertensii: (i) taken from the two AG-ant associations (i.e. seed origin), (ii) in two contrasting light conditions, and (iii) on three different substrates. Light and substrate had significant effects on germination, survival and on eight key leaf traits reflecting plant performance. Seed origin had a significant effect only on germination and on two leaf traits (total dry mass and relative growth rate). Overall, this bromeliad performs better (i.e. high growth and survival rates) when growing both in the shade and in the carton nest developed by C.femoratus ants. These results suggest that the plasticity of the tank bromeliad A.mertensii is mainly due to environment but also to genetic differences related to seed origin, as some traits are heritable. Thus, these two ant species may play contrasting roles in shaping plant evolution and speciation.
ISSN: 1435-8603

hal-01606565
https://hal.archives-ouvertes.fr/hal-01606565
DOI : 10.1111/plb.12452
PRODINRA : 407514

Éditeur(s) : HAL CCSD Wiley
Résumé : 1. Functional traits are posited to explain interspecific differences in performance, but these relationships are difficult to describe for long-lived organisms such as trees, which exhibit strong ontogenetic changes in demographic rates. Here, we use a size-dependent model of tree growth to test the extent to which of 17 functional traits related to leaf and stem economics, adult stature and seed size predict the ontogenetic trajectory of tree growth.[br/] 2. We used a Bayesian modelling framework to parameterize and contrast three size-dependent diameter growth models using 16 years of census data from 5524 individuals of 50 rain forest tree species: a size-dependent model, a size-dependent model with species-specific parameters and a size-dependent model based on functional traits.[br/] 3. Most species showed clear hump-shaped ontogenetic growth trajectories and, across species, maximum growth rate varied nearly tenfold, from 0.58 to 5.51 mm year(-1). Most species attained their maximum growth at 60% of their maximum size, whereas the magnitude of ontogenetic changes in growth rate varied widely among species.[br/] 4. The Trait-Model provided the best compromise between explained variance and model parsimony and needed considerably fewer parameters than the model with species terms.[br/] 5. Stem economics and adult stature largely explained interspecific differences in growth strategy. Maximum absolute diameter growth rates increased with increasing adult stature and leaf delta(13)C and decreased with increasing wood density. Species with light wood had the greatest potential to modulate their growth, resulting in hump-shaped ontogenetic growth curves. Seed size and leaf economics, generally thought to be of paramount importance for plant performance, had no significant relationships with the growth parameters.[br/] 6. Synthesis. Our modelling approach offers a promising way to link demographic parameters to their functional determinants and hence to predict growth trajectories in species-rich communities with little parameter inflation, bridging the gap between functional ecology and population demography.
ISSN: 0022-0477

hal-01032387
https://hal.archives-ouvertes.fr/hal-01032387
DOI : 10.1111/j.1365-2745.2011.01883.x

Résumé : Hierba trepadora de hasta 6 m, usualmente muy ramificada. Hojas alternas de 4 a 12 cm, 5-7 lobadas; lóbulos obtusos o mucronulados con márgenes dentados o crenados. Corola amarilla, segmentos obtusos o emarginados de 1.5 a 2 cm. Fruto elipsoide, tuberculado, dehiscente, de 5 a 15 cm de diámetro, de amarillo a anaranjado, con 3 valvas; pulpa de color rojo; semillas elípticas, planas, de 10 a 16 mm.
Herbe grimpante pouvant atteindre 6 m, habituellement très ramifiée. Feuilles alternes de 4 à 12 cm, avec 5-7 lobes; lobes obtus ou mucronés, bords dentés ou crénelés. Corolle jaune, segments obtus ou émargés de 1,5 à 2 cm. Fruit ellipsoïdal, tuberculé, déhiscent, de 5 à 15 cm de diamètre, jaune à orangé, avec 3 valves; pulpe de couleur rouge; graines ellipsoïdales, aplaties, de 10 à 16 mm.
Climbing dioecious herb 6 m or more, usually densely branchedwith tendrils.  Leaves alternate, simple 4-12 cm long, deeply5-7 lobed,sinuate with mucronate tips; inflorescence a raceme; female and male flowers yellow, peduncle shorter on female flower, bracts on male peduncle reniform to rounded-cordate; fruit cylindrical, narrowed at both ends, 8-15 cm long, prominent tubercles on the ribs, orange when ripe containing pendulous seeds covered in a red pulp; seed oblong 12-16 mm x 5-9 mm and 3-4 mm thick.
Originaria del Viejo Mundo y naturalizada en todos los trópicos.
Originaire de l’;Ancien Monde et naturalisée sous tous les tropiques.
Native to the Old World and naturalized in all tropical regions.

http://www.tramil.net/fototeca/plant232