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Auteur S.J. Wright |
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Comparative physiology and demography of three neotropical forest shrubs : alternative shade-adaptive character syndromes / S. Mulkey (1993)
Titre : Comparative physiology and demography of three neotropical forest shrubs : alternative shade-adaptive character syndromes Type de document : texte imprimé Auteurs : S. Mulkey, Auteur ; S.J. Wright, Auteur ; A.P. Smith, Auteur Editeur : Springer-Verlag Année de publication : 1993 Importance : pp. 526-536 Présentation : graph., tabl., réf. Note générale : Extrait d'Oecologia - Vol.96 - n°4 Langues : Anglais (eng) Catégories : Thésaurus Agrovoc
Mortalité ; Phénologie ; Photosynthèse ; Forêt ; Zone tropicaleRésumé : A suite of functionally-related characters and demography of three species of Neotropical shadeadapted understory shrubs (Psychotria, Rubiaceae) were studied in the field over five years. Plants were growing in large-scale irrigated and control treatments in gaps and shade in old-growth moist forest at Barro Colorado Island, Panama. Irrigation demonstrated that dry-season drought limited stomatal conductance, light saturated photosynthesis, and leaf longevity in all three species. Drought increased mortality of P. furcata. In contrast, irrigation did not affect measures of photosynthetic capacity determined with an oxygen electrode or from photosynthesis-CO2 response curves in the field. Drought stress limited field photosynthesis and leaf and plant survivorship without affecting photosynthetic capacity during late dry season. Leaves grown in high light in naturally occurring treefall gaps had higher photosynthetic capacity, dark respiration and mass per unit area than leaves grown in the shaded understory. P. furcata had the lowest acclimation to high light for all of these characters, and plant mortality was greater in gaps than in shaded understory for this species. The higher photosynthetic capacity of gap-grown leaves was also apparent when photosynthetic capacity was calculated on a leaf mass basis. Acclimation to high light involved repackaging (higher mass per unit leaf area) as well as higher photosynthetic capacity per unit leaf mass in these species. The three species showed two distinct syndromes of functionally-related adaptations to low light. P. limonensis and P. marginata had high leaf longevity (sim3 years), high plant survivorship, low leaf nitrogen content, and high leaf mass per unit area. In contrast, P. furcata had low leaf survivorship (sim1 year), high plant mortality (77–96% in 39 months), low leaf mass per unit area, high leaf nitrogen content, and the highest leaf area to total plant mass; the lowest levels of shelf shading, dark respiration and light compensation; and the highest stem diameter growth rates. This suite of characters may permit higher whole-plant carbon gain and high leaf and population turnover in P. furcata. Growth in deep shade can be accomplished through alternative character syndromes, and leaf longevity may not be correlated with photosynthetic capacity in shade adapted plants. Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=148693 Comparative physiology and demography of three neotropical forest shrubs : alternative shade-adaptive character syndromes [texte imprimé] / S. Mulkey, Auteur ; S.J. Wright, Auteur ; A.P. Smith, Auteur . - [S.l.] : Springer-Verlag, 1993 . - pp. 526-536 : graph., tabl., réf.
Extrait d'Oecologia - Vol.96 - n°4
Langues : Anglais (eng)
Catégories : Thésaurus Agrovoc
Mortalité ; Phénologie ; Photosynthèse ; Forêt ; Zone tropicaleRésumé : A suite of functionally-related characters and demography of three species of Neotropical shadeadapted understory shrubs (Psychotria, Rubiaceae) were studied in the field over five years. Plants were growing in large-scale irrigated and control treatments in gaps and shade in old-growth moist forest at Barro Colorado Island, Panama. Irrigation demonstrated that dry-season drought limited stomatal conductance, light saturated photosynthesis, and leaf longevity in all three species. Drought increased mortality of P. furcata. In contrast, irrigation did not affect measures of photosynthetic capacity determined with an oxygen electrode or from photosynthesis-CO2 response curves in the field. Drought stress limited field photosynthesis and leaf and plant survivorship without affecting photosynthetic capacity during late dry season. Leaves grown in high light in naturally occurring treefall gaps had higher photosynthetic capacity, dark respiration and mass per unit area than leaves grown in the shaded understory. P. furcata had the lowest acclimation to high light for all of these characters, and plant mortality was greater in gaps than in shaded understory for this species. The higher photosynthetic capacity of gap-grown leaves was also apparent when photosynthetic capacity was calculated on a leaf mass basis. Acclimation to high light involved repackaging (higher mass per unit leaf area) as well as higher photosynthetic capacity per unit leaf mass in these species. The three species showed two distinct syndromes of functionally-related adaptations to low light. P. limonensis and P. marginata had high leaf longevity (sim3 years), high plant survivorship, low leaf nitrogen content, and high leaf mass per unit area. In contrast, P. furcata had low leaf survivorship (sim1 year), high plant mortality (77–96% in 39 months), low leaf mass per unit area, high leaf nitrogen content, and the highest leaf area to total plant mass; the lowest levels of shelf shading, dark respiration and light compensation; and the highest stem diameter growth rates. This suite of characters may permit higher whole-plant carbon gain and high leaf and population turnover in P. furcata. Growth in deep shade can be accomplished through alternative character syndromes, and leaf longevity may not be correlated with photosynthetic capacity in shade adapted plants. Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=148693 Réservation
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Localisation Emplacement Section Cote Support Code-barres Disponibilité Kourou Archives AgroParisTech-Kourou TP6195 (E) Papier Périodique 11330 Empruntable Light gap disturbances, recruitment limitation, and tree diversity in a neotropical forest / S.P. Hubbell (1999)
Titre : Light gap disturbances, recruitment limitation, and tree diversity in a neotropical forest Type de document : texte imprimé Auteurs : S.P. Hubbell ; R.B. Foster ; S.T. O'Brien ; K.E. Harms ; R. Condit ; B. Wechsler ; S.J. Wright ; S. loo de Lao Année de publication : 1999 Importance : pp. 554-557, 2 ill., 3 graph., 1 tabl., 16 réf. Langues : Anglais (eng) Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=150532 Light gap disturbances, recruitment limitation, and tree diversity in a neotropical forest [texte imprimé] / S.P. Hubbell ; R.B. Foster ; S.T. O'Brien ; K.E. Harms ; R. Condit ; B. Wechsler ; S.J. Wright ; S. loo de Lao . - 1999 . - pp. 554-557, 2 ill., 3 graph., 1 tabl., 16 réf.
Langues : Anglais (eng)
Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=150532 Réservation
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Titre : Seasonal drought and leaf fall in a tropical forest Type de document : texte imprimé Auteurs : S.J. Wright ; F.H. Cornejo Editeur : Durham : Ecological society of America Année de publication : 1990 Importance : p. 1165-1175 : tabl., graph., bibliogr. ; 30 cm (photocopie). Note générale : (Extrait de : Ecology, vol. 71). Langues : Anglais (eng) Catégories : Thésaurus Agrovoc
Écologie forestière ; Forêt tropicale ; Saison sèche ; Feuille ; Stress dû à la sécheresse
Liste Plan de classement
181.8 (Phénologie) [Classement GFDC]
Autres descripteurs
LITIERE
Ancienne liste Géo
PANAMAType de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=98806 Seasonal drought and leaf fall in a tropical forest [texte imprimé] / S.J. Wright ; F.H. Cornejo . - Durham : Ecological society of America, 1990 . - p. 1165-1175 : tabl., graph., bibliogr. ; 30 cm (photocopie).
(Extrait de : Ecology, vol. 71).
Langues : Anglais (eng)
Catégories : Thésaurus Agrovoc
Écologie forestière ; Forêt tropicale ; Saison sèche ; Feuille ; Stress dû à la sécheresse
Liste Plan de classement
181.8 (Phénologie) [Classement GFDC]
Autres descripteurs
LITIERE
Ancienne liste Géo
PANAMAType de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=98806 Réservation
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Localisation Emplacement Section Cote Support Code-barres Disponibilité Kourou Archives AgroParisTech-Kourou UMR.2151 Papier Périodique 4919 Empruntable Nancy Bibliothèque sans section Br.26.194 Papier NCY-Br.26.194 Empruntable Seasonal drought, soil fertility and the species density of tropical forest plant communities / S.J. Wright (1992)
Titre : Seasonal drought, soil fertility and the species density of tropical forest plant communities Type de document : texte imprimé Auteurs : S.J. Wright Editeur : Elsevier Sciences Publishers Année de publication : 1992 Collection : Tree num. 7(8) Importance : 3 graph., 37 réf.-p. 260-263 Langues : Anglais (eng) Catégories : Thésaurus Agrovoc
Sécheresse ; Sol ; Forêt
Autres descripteurs
CROISSANCE ; TROPIQUEType de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=148697 Seasonal drought, soil fertility and the species density of tropical forest plant communities [texte imprimé] / S.J. Wright . - [S.l.] : Elsevier Sciences Publishers, 1992 . - 3 graph., 37 réf.-p. 260-263. - (Tree; 7(8)) .
Langues : Anglais (eng)
Catégories : Thésaurus Agrovoc
Sécheresse ; Sol ; Forêt
Autres descripteurs
CROISSANCE ; TROPIQUEType de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=148697 Réservation
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Localisation Emplacement Section Cote Support Code-barres Disponibilité Kourou AgroParisTech-Kourou SI TP15888 Papier KOU-15888 Empruntable Kourou AgroParisTech-Kourou SI TP6202; TB1002 Papier KOU-06202 Empruntable Seasonal drought and the phenology of understory shrubs in a tropical moist forest. / S.J. Wright (1991)
Titre : Seasonal drought and the phenology of understory shrubs in a tropical moist forest. Type de document : texte imprimé Auteurs : S.J. Wright Editeur : Durham : Ecological society of America Année de publication : 1991 Importance : p. 1643-1657 : tabl., graph., bibliogr. ; 30 cm (photocopie). Note générale : (Extrait de : Ecology, vol. 72). Langues : Anglais (eng) Catégories : Thésaurus Agrovoc
Écologie forestière ; Forêt tropicale ; Saison sèche ; Phénologie ; Stress dû à la sécheresse
Liste Plan de classement
181.8 (Phénologie) [Classement GFDC]
Autres descripteurs
STRATE ARBUSTIVE
Ancienne liste Géo
PANAMAType de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=98807 Seasonal drought and the phenology of understory shrubs in a tropical moist forest. [texte imprimé] / S.J. Wright . - Durham : Ecological society of America, 1991 . - p. 1643-1657 : tabl., graph., bibliogr. ; 30 cm (photocopie).
(Extrait de : Ecology, vol. 72).
Langues : Anglais (eng)
Catégories : Thésaurus Agrovoc
Écologie forestière ; Forêt tropicale ; Saison sèche ; Phénologie ; Stress dû à la sécheresse
Liste Plan de classement
181.8 (Phénologie) [Classement GFDC]
Autres descripteurs
STRATE ARBUSTIVE
Ancienne liste Géo
PANAMAType de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=98807 Réservation
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Localisation Emplacement Section Cote Support Code-barres Disponibilité Nancy Bibliothèque sans section Br.26.195 Papier NCY-Br.26.195 Empruntable Tropical forest litter dynamics and dry season irrigation on Barro Colorado island, Panama / R.K. Wieder
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