INSECT ECOLOGY

INSECT ECOLOGY

FOR UPSC, SSC, RAILWAYS, NDA, CDS  & STATE LEVEL COMPETITIVE EXAMINATIONS

Why study insects?

INSECTS ARE THE DOMINANT GROUP OF ORGANISMS ON EARTH, in terms of both taxonomic diversity (>50% of all described species) and ecological function!

The ESTIMATED taxonomic richness of insects:

• Given the very high numbers and the patchy distributions of many insects in time and space, it is impossible in our time-scales to inventory (count and document) all species even for an area (except

from very small areas e.g. the soil of a flowerpot).

• Extrapolations are required to estimate total species richness, which range from some three million to as many as 80 million species.

• These various calculations either extrapolate ratios for richness in one taxonomic group (or area) to another unrelated group (or area), or use a hierarchical scaling ratio, extrapolated from a subgroup (or

subordinate area) to a more inclusive group (or wider area).

Some reasons for insect species richness:

• small body size and construction of their body
• highly organized sensory and neuro-motor systems more comparable to those of vertebrate animals than other invertebrates
• insects respond to, or cope with, altered conditions (e.g. the application of insecticides to their host
plant) by genetic change between generations (e.g. leading to insecticide-resistant insects)


Main topics

• Why study insects?
• Taxonomic richness of insects
• What is ecology?
• Levels of biological organisation
• Why learn about insect ecology?
• What is ecological demand?
• Abiotic environmental factors
• Biotic environmental factors
• Anthropocentric factors
• Insect dormancies
• Photo period
• Population ecology
• Population dynamics
• Insect sampling tools
• Quantity determination of insect population growth
• Four Factors that affect density
• Ecosystem ecology
• What is ecosystem?
• How big is an ecosystem?
• What are the components of an ecosystem?

ABOUT BOOK ….

Book Name:   Insect ecology

Publication: Pannon egyetem university

Authors: Unknown

Language: English

Pages: 228

Size: 8mb

Format: pdf

Uploaded: Google drive

INSECT ECOLOGY

what is the  good thing of this book??

The author has clearly  explained the concepts. The entire book is written in  a systematic manner. The whole material is classified into type wise according to the level of difficulty of the questions. It contains different - different varieties of question  too.

जो लोग अपनी राय /सुझाव देना चाहते हैं वे हमें नीचे लिखे ID पर दे सकते है / If you want to give me any your precious suggestion please write on below mention ID.

Essential Instruction: - We have no right over any material in any way. All the content of the entire material goes to their original writer and publisher. If anyone has objection to any content published on this blog, please contact us.  

admnbookszoli@gmail.com 

CREDIT :- All image credit goes to internet..

use this content for evaluation purpose only. always buy original books and support the respected authors ....

TEAMZOLI