PDF Lecture 01 Introduction

PDF Lecture 01 Introduction - INSECT ECOLOGY -...

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INSECT ECOLOGY -- ENTOMOLOGY/BIOLOGY 127 LECTURE 1 -- INTRODUCTORY LECTURE Insects are an important group of organisms. I. The Science of Ecology A. Definitions of Ecology 1. The word ecology is derived from the Greek word oikos , which means house. Ecology is the study of the relationship of organisms with the place where they live. 2. Several definitions have been offered. Haeckel 1869 -- the total relationship of animals to organic and inorganic environment. Elton 1927 -- scientific natural history. Andrewartha 1961 -- scientific study of the distribution and abundance of animals. Odum 1963 -- study of the structure and function of nature. ecosystem approach Krebs 1972 -- scientific study of the interactions that determine the distribution and abundance of organisms. Similar to the definition that we will use. Price 1984 -- science of relationships of organisms to their environment. 3. Working definition for insect ecology : the scientific study of the interactions (functional processes) that determine the distribution and abundance of “true” insects (and some other arthropods). 4. Some properties of living systems are only "visible", or operate, between and among individual whole organisms. Ecology is in general concerned with these sorts of properties of living systems that become "visible", or "emerge", when considering interactions among individuals, populations, or communities of organisms. B. Fields of ecological study
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This note was uploaded on 02/10/2009 for the course BIO Bio 5A taught by Professor Zhu,rao during the Spring '08 term at UC Riverside.

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PDF Lecture 01 Introduction - INSECT ECOLOGY -...

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