Populations and Ecosystems (Geographic Distribution (Local Geographic…
Populations and Ecosystems
Ecology is the study of organisms in relationship to all aspects of their surroundings.
Plants in Relationship to Their Habitats
The habitat is the set of conditions in which an organism completes its life cycle.
Biotic Components are living factors.
For Example : species of fungi, animals, protists, prokaryotes, plants.
Abiotic Components are nonliving and are physical phenomena.
For Example: Climate, Soil, Altitude, Floods,
Boundaries of the Geographic Range
Local Geographic Distribution
It is used whenever there is no obvious, identifiable pattern to the position of individuals .
It is a distributions in which the spacing between plants is either small or large, but rarely average.
It is a types of distributions which occur in orchards and tree plantations
The Structure of Ecosystems
The physical size and shape of the organisms and their distribution in relation to each other and to the physical environment constitute the physiognomic structure.
The changes that an ecosystem undergoes with time constitute.
Species composition refers to the number and diversity of species that coexist in an ecosystem, and it depends on whether the climate is mild or stressful, the soil is rich or poor, and the species tolerance ranges are broad or narrow.
Trophic levels are basically feeding levels.