Growth and Population Dynamics of Espeletia (Compositae) in the Venezuelan Andes PDF Download
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Author: Alan P. Smith Publisher: ISBN: Category : Science Languages : en Pages : 52
Book Description
Nellie Sue, who fancies herself a real cowgirl, wants a horse for her birthday, but she discovers that a brand new bicycle--her first--takes almost as much taming as a filly.
Author: Alan P. Smith Publisher: ISBN: Category : Science Languages : en Pages : 52
Book Description
Nellie Sue, who fancies herself a real cowgirl, wants a horse for her birthday, but she discovers that a brand new bicycle--her first--takes almost as much taming as a filly.
Author: Publisher: Academic Press ISBN: 0080567045 Category : Science Languages : en Pages : 295
Book Description
Volume 20 of this series deals with a variety of plant and animal ecology topics.**Despite much recent work on herbivory, little attention has been given to insect herbivores active below ground. Brown and Gange describe the ecological adaptations of insects to this abundant but poor quality food resource, and the responses of plants to this potentially very damaging grazing pressure.**Plants living at high altitude must be able to cope with extreme climatic conditions, low carbon dioxide levels, and high radiation doses. Friend and Woodward describe these adaptations and discuss the degree to which they are genetically determined or merely the product of physiological plasticity.**Thomas presents a modular concept of ecology in which modules contain a resource and its associated consumers, and goes on to examine the general principles which may reflect the various mutualisms between organisms in some example fresh water modular systems.**Finally, West examines the microphytic soil crusts of arid and semi-arid soils. Although information on them is currently limited, they are likely to be important in some ecosystems.
Author: Philip W. Rundel Publisher: Cambridge University Press ISBN: 052142089X Category : Gardening Languages : en Pages : 400
Book Description
Plants growing in tropical alpine environments (at altitudes above the closed canopy forest and below the limit of plant life) have evolved distinct forms to cope with a hostile environment characterized by cold, drought and fire. Unlike temperate alpine environments, where there are distinct seasons of favourable and unfavourable conditions for growth, tropical alpine habitats present summer conditions every day and winter conditions every night. Using examples from all over the tropics, this fascinating account reviews, for the first time, the unique form and functional relationships of tropical alpine plants examining both their physiological ecology and population biology. It will appeal to anyone interested in tropical vegetation and plant physiological adaptations to hostile environment, as well as to researchers in biogeography and ecology.
Author: T.J. Pandian Publisher: CRC Press ISBN: 1000646092 Category : Science Languages : en Pages : 433
Book Description
Plants are autotrophs and sessile, while animals are heterotrophs and motile. Sessility has imposed on plants 94% hermaphroditism, 23% selfing, 3% polyploidization and 39% clonality, in comparison to 19 and
Author: Cleofé E. Calderón Publisher: ISBN: Category : Science Languages : en Pages : 460
Book Description
The history of the grass subfamily Bambusoideae is reviewed and nomenclatural problems of subfamilial and tribal level are explored. Characters are presented to distinguish the subfamily from all other grasses and differentiating features of the two major groups of bamboosherbaceous and woodyare included. Keys are given for the tribes and genera of herbaceous American bamboos and genera of woody American bamboos, the latter based principally on vegetative characters. A conspectus of the subfamily also appears, with a list of all 37 genera recognized in the American continent, each with nomenclatural and taxonomic notes. Comments on the morphology of the bamboo plant and the systematic value of some characters, especially vegetative, are given in the introduction.
Author: Alan P. Smith
Author: Alan P. Smith
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Author: 
Author: Philip W. Rundel
Author: T.J. Pandian
Author: Harold Robinson
Author: Alan P. Smith
Author: Joan W. Nowicke
Author: Cleofé E. Calderón
Author: