TS Inter 1st Year Botany Notes Chapter 13 Ecological Adaptation, Succession and Ecological Services

Here students can locate TS Inter 1st Year Botany Notes 13th Lesson Histology and Anatomy of Flowering Plants to prepare for their exam.

TS Inter 1st Year Botany Notes 12th Lesson Histology and Anatomy of Flowering Plants

→ The essence of biological understanding is to know how organisms while remaining an individual interact with other organisms and physical habitats as a group and hence behave like organised wholes,
i. e., population, community, ecosystem or even as the whole biosphere.

→ Ramdeo Misra
Ramdeo Misra is revered as the Father of Ecology. His research laid the foundations for understanding of tropical communities and their succession, environmental responses of plant populations and productivity and nutrient cycling in tropical forest and grassland ecosystems.

→ Study of reciprocal relationship between plants and their environment is called ecology.

→ Father of Ecology in India is Ramdeo Misra.

→ Ecology is basically concerned with four levels of biological organisation- organisms, populations, communities and biomass.

→ Warming classified plant communities into xerophytes, mesophytes and hydrophytes.

→ Hydrophytes grow in water or very wet places. They are 5 types.
(a) Free floating hydrophytes
(b) Rooted hydrophytes with floating leaves
(c) Submerged suspended hydrophytes
(d) Submerged rooted hydrophytes
(e) Amphibious plants.

TS Inter 1st Year Botany Notes Chapter 12 Histology and Anatomy of Flowering Plants

→ Hydrophytes show morphological and anatomical adaptations depending upon the environment.

→ Xerophytes grow in habitats where water supply in deficient or soil is physiologically dry – They are 3 types.
(a) Ephemerals or drought evaders
(b) Succulents or drought avoiders
(c) True xerophytes or non succulents

→ Hydrophytes and Xerophytes have many ecological adaptations to suit their surroundings.

→ The gradual and fairly predictable change in the species composition of a given area is called ecological succession.

→ Succession that starts where no living organisms are found is called primary succession.

→ Succession that processes in an area where all the organisms lost that existed there is called secondary succession.

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