Basic BiogeographyFirst published in 1985. This is the is the second edition of a study looking at ecology and biogeography with updated chapters including current research. It starts with the with the study of plants to gain an understanding of the complexities of ecological relationships. |
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Page 7
... grasses (the latter include as cereals most of man's basic food crops). The plants are usually relatively short (though palm trees are an exception). As a consequence, their flowers are small when compared with the Dicotyledons. To this ...
... grasses (the latter include as cereals most of man's basic food crops). The plants are usually relatively short (though palm trees are an exception). As a consequence, their flowers are small when compared with the Dicotyledons. To this ...
Page 14
... grasses of the drier prairies, the form of the vegetation is referred to and not the specific plants present. Some communities consist of one main life-form (e.g. lichen and moss cushions on Arctic rock surfaces), but most have a ...
... grasses of the drier prairies, the form of the vegetation is referred to and not the specific plants present. Some communities consist of one main life-form (e.g. lichen and moss cushions on Arctic rock surfaces), but most have a ...
Page 15
... Grass cushion (cg. Cirsimn (eg. Huicus (cg. Hypnum palmrre) mnliis) cupressifc rme) also occur in this stratum ... grasses, herbs and mosses frequently occurs, some of the herbs reaching several feet in height. A woodland like this has ...
... Grass cushion (cg. Cirsimn (eg. Huicus (cg. Hypnum palmrre) mnliis) cupressifc rme) also occur in this stratum ... grasses, herbs and mosses frequently occurs, some of the herbs reaching several feet in height. A woodland like this has ...
Page 16
... grass). Compare this woodland structure with that shown in Fig. 2.5. Fig. 2.5 Eucalyptus woodland (Eucalyptus coccifera: Tasmanian snowgum) on stony. Fig.. 23 CMltern beectiwood on the plateau south of Chinnor. The simplified structure ...
... grass). Compare this woodland structure with that shown in Fig. 2.5. Fig. 2.5 Eucalyptus woodland (Eucalyptus coccifera: Tasmanian snowgum) on stony. Fig.. 23 CMltern beectiwood on the plateau south of Chinnor. The simplified structure ...
Page 21
... grass cover. For a tree seedling to survive and mature into a tall tree it must be able to compete successfully at all strata levels, perhaps dominating each level in turn. Some ecologists treat each stratum in a complex vegetation as a ...
... grass cover. For a tree seedling to survive and mature into a tall tree it must be able to compete successfully at all strata levels, perhaps dominating each level in turn. Some ecologists treat each stratum in a complex vegetation as a ...
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acid activities agricultural animals approach areas associated become Britain British brown cause cent changes chemical Class clay climatic complex conservation cover crop cycle detailed determined disturbance dominant early Ecol ecology ecosystem effects energy environment environmental established example exist factors field fire forest further grass grazing ground growing growth horizon humus important increase influence insect land layer lead less limit loss major material measure methods mountain natural North nutrients oakwood occur organic particularly pattern peat period pest pine plant population present problem processes production range reached recent reference region relatively seed shown similar slopes soil species spread stage stands structure succession surface Table temperature trees types unit upland usually values vegetation wind wood woodland zone