Abundance, growth and mortality of very large trees in neotropical lowland rain forest / David B. Clark (1996)

Public ISBD Titre : Abundance, growth and mortality of very large trees in neotropical lowland rain forest Type de document : texte imprimé Auteurs : David B. Clark, Auteur ; Deborah A. Clark, Auteur Editeur : Amsterdam : Elsevier science Année de publication : 1996 Importance : pp. 235-244 Présentation : graph., réf. ISBN/ISSN/EAN : 0378-1127 Langues : Anglais (eng) Catégories : Thésaurus Agrovoc Mortalité ; Croissance ; Arbre ; Forêt tropicale humide Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=149202 Abundance, growth and mortality of very large trees in neotropical lowland rain forest [texte imprimé] / David B. Clark, Auteur ; Deborah A. Clark, Auteur . - Amsterdam : Elsevier science, 1996 . - pp. 235-244 : graph., réf. ISSN : 0378-1127 Langues : Anglais (eng) Catégories : Thésaurus Agrovoc Mortalité ; Croissance ; Arbre ; Forêt tropicale humide Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=149202

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Competition and coexistence : modelling approaches / W. Ebenhoh (1994)

Public ISBD Titre : Competition and coexistence : modelling approaches Type de document : texte imprimé Auteurs : W. Ebenhoh, Auteur Editeur : Amsterdam : Elsevier science Année de publication : 1994 Importance : pp. 83-98 Présentation : graph., réf. Note générale : Extrait d'Ecological Modelling - Vol.75/76 Langues : Anglais (eng) Catégories : Thésaurus Agrovoc Compétition biologique ; Modèle Résumé : Competition and coexistence are discussed in the framework of multispecies and simple food web models. A class of models is defined where for steady state solutions the principle of competitive exclusion acts. With variable environments, however, the same class of models allows coexistence of many species. The coexisting species have to fulfil a qualitative trade-off condition (improvement of one property is accompanied by detoriation of another). In the case of periodic environments a new definition of fitness is introduced. The variability, which is prerequisit for coexistence in these models, does not necessarily have to be externally forced on the system. Also internally created temporal and spatial self-organized structures enhance the possibilities for coexistence of competing species. Many relatively simple models illuminate the mechanisms leading to persistent coexistence. The models are formulated such that inter- and intraspecific interactions of the many species occur via few collective variables. An extended class of models takes species internal variables into account. Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=149005 Competition and coexistence : modelling approaches [texte imprimé] / W. Ebenhoh, Auteur . - Amsterdam : Elsevier science, 1994 . - pp. 83-98 : graph., réf. Extrait d'Ecological Modelling - Vol.75/76 Langues : Anglais (eng) Catégories : Thésaurus Agrovoc Compétition biologique ; Modèle Résumé : Competition and coexistence are discussed in the framework of multispecies and simple food web models. A class of models is defined where for steady state solutions the principle of competitive exclusion acts. With variable environments, however, the same class of models allows coexistence of many species. The coexisting species have to fulfil a qualitative trade-off condition (improvement of one property is accompanied by detoriation of another). In the case of periodic environments a new definition of fitness is introduced. The variability, which is prerequisit for coexistence in these models, does not necessarily have to be externally forced on the system. Also internally created temporal and spatial self-organized structures enhance the possibilities for coexistence of competing species. Many relatively simple models illuminate the mechanisms leading to persistent coexistence. The models are formulated such that inter- and intraspecific interactions of the many species occur via few collective variables. An extended class of models takes species internal variables into account. Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=149005

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A critique of permanent plot methods and analysis with examples from Budongo forest, Uganda / D. Sheil (1995)

Public ISBD Titre : A critique of permanent plot methods and analysis with examples from Budongo forest, Uganda Type de document : texte imprimé Auteurs : D. Sheil Editeur : Amsterdam : Elsevier science Année de publication : 1995 Collection : Forest Ecology and Management num. 77 Importance : pp. 11-34., ill., graph., tabl., nb réf. Langues : Anglais (eng) Catégories : Autres descripteurs TROPICAL RAIN FOREST ; FOREST DYNAMICS ; MORTALITY ; GROWTH ; RECRUITMENT Résumé : Permanent sample plot (PSP) studies play a major role in ecological and management research. Bias and error may arise in such studies at each stage of the assessment from plot establishment through to data interpretation, and can indermine confidence in the use of PSP data. This paper considers these problems and suggests how they might be identified and minimised. Examples are taken from Budongo forest, Uganda, whitch provides some of the world's longest-term PSP data from both primary and treated tropical forest (1939-1993 and 1933-1992 respectively). Three distinct types of artefact in PSP studies are recognised : errors in methodology, impact of methodology, and inappropriate analysis. Deficiencies in each aspect of plot evaluation can have considerable influence on the evaluation of change with time and of differences between sites. Each technique can be controlled and/or improved. Data correction and "harmonisation" procedures are discussed. Interpretation of PSP data must consider the many pitfalls of assessing such complex data. Some of the central considerations in data interpretation are reviewed and critical areas are defined e.g. time period between observations influences the evaluation of dynamic quantities. Some conclusions disagree with those of other authors. The most significant factors identified (many with implication for vegetation monitoring generally) are summarised and a set of recommendations is provided. Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=151456 A critique of permanent plot methods and analysis with examples from Budongo forest, Uganda [texte imprimé] / D. Sheil . - Amsterdam : Elsevier science, 1995 . - pp. 11-34., ill., graph., tabl., nb réf.. - (Forest Ecology and Management; 77) . Langues : Anglais (eng) Catégories : Autres descripteurs TROPICAL RAIN FOREST ; FOREST DYNAMICS ; MORTALITY ; GROWTH ; RECRUITMENT Résumé : Permanent sample plot (PSP) studies play a major role in ecological and management research. Bias and error may arise in such studies at each stage of the assessment from plot establishment through to data interpretation, and can indermine confidence in the use of PSP data. This paper considers these problems and suggests how they might be identified and minimised. Examples are taken from Budongo forest, Uganda, whitch provides some of the world's longest-term PSP data from both primary and treated tropical forest (1939-1993 and 1933-1992 respectively). Three distinct types of artefact in PSP studies are recognised : errors in methodology, impact of methodology, and inappropriate analysis. Deficiencies in each aspect of plot evaluation can have considerable influence on the evaluation of change with time and of differences between sites. Each technique can be controlled and/or improved. Data correction and "harmonisation" procedures are discussed. Interpretation of PSP data must consider the many pitfalls of assessing such complex data. Some of the central considerations in data interpretation are reviewed and critical areas are defined e.g. time period between observations influences the evaluation of dynamic quantities. Some conclusions disagree with those of other authors. The most significant factors identified (many with implication for vegetation monitoring generally) are summarised and a set of recommendations is provided. Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=151456

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Ecological genetics in forest ecosystems under stress as analysed by the simulation model eco-gene / B. Degen (1998)

Public ISBD Titre : Ecological genetics in forest ecosystems under stress as analysed by the simulation model eco-gene Type de document : texte imprimé Auteurs : B. Degen ; F. Scholz Editeur : Amsterdam : Elsevier science Année de publication : 1998 Collection : Chemosphere num. 36 (4-5) Importance : p. 819-824., 1 ill., 1 graph., 20 réf. Langues : Anglais (eng) Catégories : Autres descripteurs ECO GENE ; ECOSYSTEM ; GENETIC STRUCTURE ; model Thésaurus Agrovoc Stress Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=150492 Ecological genetics in forest ecosystems under stress as analysed by the simulation model eco-gene [texte imprimé] / B. Degen ; F. Scholz . - Amsterdam : Elsevier science, 1998 . - p. 819-824., 1 ill., 1 graph., 20 réf.. - (Chemosphere; 36 (4-5)) . Langues : Anglais (eng) Catégories : Autres descripteurs ECO GENE ; ECOSYSTEM ; GENETIC STRUCTURE ; model Thésaurus Agrovoc Stress Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=150492

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Impact of selective logging on the dynamics of a low elevation dense moist evergreen forest in the western ghats (south India) / Raphaël Pélissier (1998)

Public ISBD Titre : Impact of selective logging on the dynamics of a low elevation dense moist evergreen forest in the western ghats (south India) Type de document : texte imprimé Auteurs : Raphaël Pélissier ; Jean-Pierre Pascal ; François Houllier ; H. Laborde Editeur : Amsterdam : Elsevier science Année de publication : 1998 Collection : Forest Ecology and Management num. 105 Importance : 107-119 p., ill., graph., 42 réf.-p. 107-119 Langues : Anglais (eng) Catégories : Autres descripteurs RECRUITMENT ; FOREST DYNAMICS ; SELECTIVE LOGGING ; CROISSANCE Thésaurus Agrovoc Forêt tropicale humide ; Mortalité ; Inde Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=149757 Impact of selective logging on the dynamics of a low elevation dense moist evergreen forest in the western ghats (south India) [texte imprimé] / Raphaël Pélissier ; Jean-Pierre Pascal ; François Houllier ; H. Laborde . - Amsterdam : Elsevier science, 1998 . - 107-119 p., ill., graph., 42 réf.-p. 107-119. - (Forest Ecology and Management; 105) . Langues : Anglais (eng) Catégories : Autres descripteurs RECRUITMENT ; FOREST DYNAMICS ; SELECTIVE LOGGING ; CROISSANCE Thésaurus Agrovoc Forêt tropicale humide ; Mortalité ; Inde Type de document : Tiré à part Permalien de la notice : https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=149757

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Improvements in the precision of pH measurements : a laboratory reference electrode with renewable free-diffusion liquid junction. / A.K. Covington (1985)

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Numerical ecology / Pierre Legendre (1998)

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SYSTEMS analysis in forestry and forest industries. / M. Kallio (1986)

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Twenty years of agronomic evaluation of wild cocoa trees (Theobroma cacao L.) from French Guiana / Philippe Lachenaud (2007)

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