Entire communities need to be conserved in order to preserve biodiversity. The most comprehensive coverage of the 2014 syllabus, this resource pack includes a print and online biology course book, for fully flexible learning. From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. The biology of biodiversity must include all the aspects of evolutionary and ecological sciences analyzing the origin, changes, and maintenance of the di versity of living organisms. Stay up to date with the latest information on what this means for ib diplomas. Biodiversity definition biodiversity is the variation among living organisms from different sources including terrestrial, marine and desert ecosystems, and the ecological complexes of which they are a part. Biodiversity encompasses the genetic variety within each species and the variety of ecosystems that species create. It takes into account both the total numer of species found at the site as well as the number of individuals within a species population. For both levels, youll also cover one of the four options a through d, at either the sl. Human activity is causing changes to many biomes worldwide, such as through pollution, which may not always be selfevident. Features fully online format, accessible anytime, anywhere. Read our complete set of ib biology notes and our free study guide to the best resources available.
Pertaining to the diversity and frequency of organisms in a given. Today biodiversity, which benefits human life in vari ous ways, is threatened by the expansion of human activities. I have already suggested this book for next year and am looking forward to the study guide, when it becomes available in september. The diversity of plant and animal life in a particular habitat or in the world as a whole. Discuss reasons for the conservation of biodiversity using rainforests as an example.
Rich biodiversity also supports ecotourism and provides enjoyment to individuals. This is a blog for high school students and their teachers. The goal of the supplemental reading assignment is for students to read a biology based popular press book. Introduction environmental biology is a free and open textbook that enables students to develop a nuanced understanding of todays most pressing environmental issues. Teachers must use their judgment and the most uptodate advice in subject guides and reports. Biodiversity and conservation biology science khan academy. Notes on definition the cbd definition is the internationally accepted definition of biodiversity. Ecology is the scientific study of the interrelations between the living organisms and their environment including both the abiotic and. Rising sea levels from melting icecaps and thermal expansion floods low lying land reducing habitats.
Biological diversity is defined at different hierarchical levels. From penguins to palm trees to bacteria, our planet is host to an aweinspiring diversity of organisms. Biodiversity topic 4 edexcel unit 2 as level biology. What is the millennium seed bank in sussexs aim to achieve by the year 2020. Biodiversity is a measure of the richness and evenness of an ecological. If you still need more assistance, check out our article on the best ib biology books. Ib biologyoption g ecology and conservation wikibooks, open. Biodiversity enriches the lives of peoples who are living in the industrialized world. This annotated guide to the literature of the biological sciences covers over 3,000 major books, journals, and web sites of interest to biologists and biologistsintraining. Biodiversity is highest in the tropical rainforests. The web pages listed on this site are taken from the fourth edition of using the biological literature. A common measure of this variety, called species richness, is the count of species in an area. List of books and articles about biodiversity online.
The biodiversity heritage library works collaboratively to make biodiversity literature openly available to the world as part of a global biodiversity community. Biodiversity is the variety of different forms of life on earth, including the different plants, animals, microorganisms, the genes they contain and the ecosystem they form. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity. Ib biologyoption g ecology and conservation wikibooks. Free practice questions for sat ii biology e biodiversity. Scientists have variously estimated that there are from 3 to 30 million extant species, of which 2.
Biodiversity, the variety of life found in a place on earth or, often, the total variety of life on earth. Mar 07, 2017 biodiversity is the shortened shape of words organic and diversity. Wilson version is included below in further definitions as the first recorded definition of the term. Human is completely responsible for the disturbance of biodiversity. In popular usage, the word biodiversity is often used to describe. This content is provided by the california academy of sciences. In ib biology 1, one supplemental reading book must be read per semester as a required assignment in the classroom category of the grade book. It refers to all of the style of lifestyles that may be observed on this planet vegetation, animals, fungi and microorganisms as well as to the communities that they form a. This is the total number of species living in an ecosystem. Recently attention has been focussed on global biodiversity and the extinction of species due to human activities. Home a level and ib study tools biology biodiversity. The tremendous biodiversity of the amazon rainforest can only be conserved in situ it is simply too complex to recreate or conserve in part.
A biology of numbers and difference explores the underlying principles of this new research since biodiversity began to be used in the late 1980s as a calltoarms by conservation biologists, it has emerged as a topic of scientific. Biological diversity definition of biological diversity by. Biological diversity synonyms, biological diversity pronunciation, biological diversity translation, english dictionary definition of biological diversity. Dive deep into earths breathtaking biodiversity, learn why this biodiversity is in peril today, and discover what you can do to protect the species and ecosystems that support human life on earth. Again, credit for the presentations and many of the notes to chris paine at bioknowledgy. Biodiversity is the shortened form of two words biological and diversity. Pdf biodiversity is the variety of different forms of life on earth, including the different plants. Biodiversity definition and examples biology online. While it has its origin in conservation biology, it has become useful across multiple biological disciplines as a means to describe biological variation. Ethical reasons for conserving biodiversity are that all species have a right to live on this planet. Mar 22, 2020 in ib biology slhl, there are so many topics and so little time.
Biodiversity is a compound word derived from biological diversity and therefore is considered to have the same meaning. Jun 03, 2015 biology for the ib diploma exam preparation guide first edition. If youve found the materials helpful, please consider making a contribution of any amount to this earthwatch expedition fund. Start studying biodiversity topic 4 edexcel unit 2 as level biology.
However, the term has as yet no precise definition in scientific terms. Biology for the ib diploma exam preparation guide first edition. Ray mikolajczyk, ib biology teacher, king faisal school, saudi arabia we were planning on ordering another publishers resources but many of our ib teachers attended workshops and came back asking for oxford. It explicitly recognizes that every biota can be characterized by its taxonomic, ecological, and genetic diversity and that the way these dimensions of diversity vary over space and time is a key feature of biodiversity. Mar 22, 2020 below are all the best notes for ib biology sl and hl. Biodiversity is a key concept in the biological sciences. This text helps students grasp the scientific foundation of environmental topics so they can better understand the world around them and their impact upon it.
Comments are open on most pages and posts, but should be relevant, ageappropriate and constructive. There are other isotopes wlonger halflives, such as k40. The importance of this definition is that it draws attention to the many dimensions of biodiversity. Rich biodiversity provides different types of medicines to treat and cure illness. Ib biology wikibooks, open books for an open world. Richness and evenness are components of biodiversity and analysis of the biodiversity of two local communities using simpsons reciprocal index of diversity. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level. Accurately cover the new syllabus the most comprehensive match, with support directly from the ib on the core, ahl and all the options. Maximize your study time by using the best study materials and best ib biology textbooks. Both levels cover topics 16, and hl additionally consists of topics 711. Understanding the term biodiversity is a word that is used to describe the differences between individuals, species.
It refers to all the variety of life that can be found on earth plants, animals, fungi and microorganisms as well as to the communities that they form and the habitats in which they live. With unrivalled support for the new conceptbased approach to learning, the nature of science, these are the only dp biology resources that include support straight from the ib. Dec 30, 2010 mahalo biology expert mary poffenroth explains the definition of biodiversity. For example, the following data was collected from a quadrat sample of two different. The simpson biodiversity formula is a statistical formula used to quality of the biodiversity of a site that is being considered. Covers topics seen in a high school or firstyear college biology course. I give many of my ib biology resources away, for the benefit of students and teachers around the world. The only dp biology resource that includes support straight from the ib, it is available online for fully flexible learning.
Biodiversity is not distributed evenly on earth, and is richest in the tropics. By the 1990s, biodiversity has become a key concept in the biological and environmental sciences. Cambridge university presss mission is to advance learning, knowledge and research worldwide. Espm c103ib c156 principles of conservation biology fall 2016 tuth. In this article, ive compiled the best free online ib biology study guides including ib biology notes and ib biology revision into one resource and provided you with some ib biology practice questions. Biodiversity is a complex topic, covering many aspects of biological variation. Detailed objectivebyobjective summary notes for topic 5. Dive in to learn more about the many branches of biology and why they are exciting and important. Biodiversity or biological diversity is the diversity of species, ecosystems and genes that exist on earth. Biodiversity the existence of a wide range of different types of organisms in a given place at a given time. Ib biology sl consists of a minimum of 150 prescribed hours, and ib biology hl consists of a minimum of 240 prescribed hours. Reasons should include ethical, ecological, economic, and aesthetic arguments. The convention on biological diversity gives a formal definition of.
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