Biodiversity is not evenly distributed, rather it varies greatly across the globe as well as within regions. Friday we took notes on chapter 5, section 2 threats to biodiversity. Biodiversity results from natural physical processes, and as. The proportion of livestock breeds at risk of extinction is increasing. Biodiversity results from natural physical processes, and as such has distinct geographical patterns. Living waters core habitats represent lakes, ponds, rivers, and streams that are important for the protection of freshwater biodiversity in massachusetts. It includes diversity within species, between species, and among ecosystems, in sum the diversity of all life on earth. Overall, the diversity of crops present in farmers fields has declined and threats to crop diversity are increasing. Values of biodiversity, threats to biodiversity free download as powerpoint presentation. We now know that most species that have ever lived have gone extinct. Threats to biodiversity the nature trust of british columbia. In 2002, governments set 2010 as a deadline to achieve a significant reductionin the rate of loss of biodiversity for reducing poverty.
Biodiversity and conservation although india h as only 2. First, it is rare that humans intend to make a species go extinct or to threaten biodiversity in some other way. Such threats to biodiversity may cause the extinction of many species. Introduction to biodiversity center for biodiversity. Biodiversity reflects the number, variety and variability of living organisms as well as how these change from one location to another and over time. This worksheet contains basic conceptual questions about biodiversity. The growth of human populations, consumption levels, and mobility is the root of most of the serious threats to biodiversity today. Take immediate action to preserve worlds biological hot spots.
Section 1 describes the main threats to biodiversity and the. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Lemons, biology department, duke university background reading what is biodiversity. However, the rate of illegal activities in the park is posing serious threats to these resources. Abandonment, cessation of grazing and overgrowth of open seminatural habitats, including forest glades nutrient pollution of oligotrophic habitats by leaching from agricultural fields and. Huber, organismic and evolutionary biology, university of massachusetts at amherst paula p. However, the rate of illegal activities in the park is posing serious threats to these. Biodiversity, ecosystems and ecosystem services 7 biodiversity at a suitable scale, e. Despite the benefits from biodiversity, todays threats to species and ecosystems are increasing day by day with alarming rate and virtually all of them are caused by human mismanagement of. The first attempt included fish, marine mammals, and sea turtles, which are considered important sentinels for ocean. Biodiversity is a fragile thing, susceptible to all sorts of threats. One of the best list of hotspots is conservation internationals biodiversity hotspots. This brief slideshow and guided notes for the hippco threats to biodiversity habitat loss, invasive species, population increase, pollution, climate change, overharvesting is a great starting point for classes studying a loss of biodiversity around the earth. Tropical rain forests, mangroves, and coral reefs are examples with high biodiversity.
Project report on biodiversity environmental pollution. Among other factors, the diversity of all living things depends on temperature, precipitation, altitude, soils, geography and the presence of other species. Today you will have an opportunity to be part of a team of science photographers on assignment in waipa. The average rate over the past 200 my is 12 species per year, and 34 families per my. What are the eight priorities for protecting biodiversity. Cbd fifth national report philippines english version. By looking at the threats to floridas biodiversity, we may be able to come up with some additional approaches.
In discussing threats to biodiversity it is important to keep in mind that, behind these direct drivers of biodiversity loss, there are a number of indirect drivers that interact in complex ways to cause humaninduced changes in biodiversity. Biodiversity definition biological diversity means the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are a part. Threats the major threats to biodiversity are all directly related to human land use, and include. Threats to pacific island biodiversity and biodiversity conservation in the pacific islands randy thaman, pacific islands biogeography, university of the south pacific, fiji introduction the rich biodiversity of the pacific islands is seriously threatened. This article throws light on the ten major causes for the loss of biodiversity, i. Gibbs background although species extinctions are part of the evolutionary process, current extinction rates are much greater than at any time in the last several million years. Threats to biodiversity an overview 1 monday, november 12, 12 how do scientists account for. The loss of biodiversity reduces ecosystem resilience and increases. International trade drives biodiversity threats in. Defining biodiversity is a difficult and complex task that depends on the level of. Biodiversity threats weston w sechrest,university of virginia, charlottesville, virginia, usa thomas m brooks, center for applied biodiversity science conservation international, washington dc, usa any direct or indirect human activity that threatens the planets biological diversity in the. The development of a national biodiversity action strategy and plan nbsap is a critical initial obligation for all parties.
Biodiversity is the variety of all lifebiodiversity is the variety of all life forms. Threats to biodiversity come from many sources, most human but some natural. Current extinction rates are about 2,500 times the background rate at. Extinction is a natural event and, from a geological perspective, routine. Major threats biodiversity is under serious threat as a result of human activities. The latter phenomenon can be temporary or permanent, depending on whether the environmental degradation that leads to the loss is reversible through ecological restoration ecological resilience or. Biodiversitybiodiversity by ankush sethi nikhil sood vijay mohan 2. They include demographic, economic, sociopolitical, cultural, religious, scientific and technological. We at the center for biodiversity outcomes at arizona state university address this need for broad participation through our commitment to interdisciplinary collaboration and multistakeholder engagement, while drawing on a long history of conservation biology research at asu. However, this is not to say that such measures are mutually exclusive. They have also identified 5 other areas with high biodiversity, but with fewer threats. Reproduction of this material is authorized by the recipient institution for non. Threats and risks to biodiversity unesco digital library. The concept of biodiversity continues to evolve and more recently it has been included in the idea of ecosystem services in that it is a form of natural capital and thus underpins the functioning of ecosystems 10, 11.
Sep 07, 20 contents introduction threats to biodiversity habitat loss poaching manwildlife conflicts importance of biodiversity questions 3. Victorians treasure the environment not just for its own sake, but for its. Protecting victorias environment biodiversity 2037. Pdf the biodiversity, diversity in life forms, suffers greater threat from degradation, habitat fragmentation. Pdf biodiversitythreats and conservation researchgate. Biodiversity biological diversity is the total variety of living organisms in all ecosystems on earth, the genetic differences between them, and the communities and ecosystems in which they occur. Concept, threats and conservation pdf 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. Biodiversity is that part of nature which includes the differences in genes among the individuals of a species. Human activities that destroy habitats include deforestation, shown in figure 3.
For updates about sales and new products, please follow my store. This is a class notes presentation and student guide for the ibdp environmental systems and societies topic 3. Aquatic biodiversity in 2003, the natural heritage and endangered species program created the living waters map, which delineates habitat for aquatic biodiversity in massachusetts. Biodiversity and threats to it biodiversity and threats to it 4. The year 2010 has long been seen as an end goal, a time when we could look back and say, yes, weve done it that biodiversity, life on earth, is no longer threatened. Even as it supports all life on earth it is constantly facing threats and damage that is almost impossible for our multiple ecosystems to recover from. Biodiversity conservation provides substantial benefits to meet immediate human needs, such as clean, consistent water flows, protection from floods and storms and a stable climate. Biodiversity plan, protecting victorias environment biodiversity 2037, the new flora and fauna guarantee strategy for the purposes of section 17 of the flora and fauna guarantee act 1988. The study of the spatial distribution of organisms, species and ecosystems, is the science of biogeography. Strategic plan for biodiversity 20112020 and the 2020 aichi biodiversity targets. Pdf any direct or indirect human activity that threatens the planets biological diversity in the form of genes, populations, species, ecosystems. This diversity includes all the variations that exist in all levels of biological organization but bear in mind that biodiversity is more than just species.
Here are biodiversity s biggest threats, and what we can do to fight them. Threats to pacific island biodiversity and biodiversity. Nearly 45,000 species of plants and twice as many of animals have been recorded from india. Since the 4th national report to the convention on biological diversity was published in 2009, the philippines has taken steps to strengthen political, legal and institutional responses to the problems of. The loss of biodiversity is dangerous and its consequences are immediate. An increase in average temperature in the altaisayan ecoregion since the mid 1970s is proved to be risen by 1. A many of the plants and animals that live there cant be found anywhere else in the world. Contents introduction biodiversity at different levels threats to biodiversity status of terrestrial ecoregions species under threat animal biodiversity threats in india conclusion 3. The year 2018 marks the 25 th anniversary of the entry into force of the convention on biological diversity. To date efforts to preserve biological diversity have mostly been centered on preserving individual species and tracts of land. May 23, 2015 biodiversity is vital to keep all life on earth healthy, balanced and thriving. The report, which covered actions and changes initiated from the period of. We will discuss the consequences of biodiversity loss for ecosystem, species.
University of agricultural and horticultural sciences, shimoga by chandana b r jr mscgpb 2. Delineation of broadscale biodiversity threats by venter et al. Biodiversity is a key resource, which provides a range of valuable goods and critical services to human populations. Ppt threats to biodiversity powerpoint presentation free. Planning for biodiversity guidance 5 there are several policy frameworks that are relevant when undertaking planning for biodiversity.
A free powerpoint ppt presentation displayed as a flash slide show on id. Volume one of the thoroughly revised and updated guide to the study of biodiversity in insects. Taking into account data regarding marine biodiversity and threats, we mapped vertebrate endangered species and have tried to locate potential hot spot areas of special concern for conservation in the mediterranean figure 12. Ecosystem stability is based on interdependence among constituent species and with biodiversity loss, resilience to change is reduced. The wide variety of species on earth, whether theyre plants, animals or microscopic organisms, are vital to. The year is also coincide with the adoption of the convention by nepal. Threats to biodiversity activity 1 science photography aloha fellow scientists. Identify and describe the major threats to aquatic. It includes visual references and written notes for all understandings, applications, and skills from the latest syllabus released in 2017 and links to topic not. This study investigated different forms of threats facing biodiversity. Complete mapping of worlds biodiversity for inventory and decision making. Biodiversity threats from red lists are linked with patterns of international trade, identifying the ultimate instigators of the threats. They have identified 35 areas which are both highly diverse and face serious threats.
Tongas nbsap followed the cbd prescribed process of community and public consultation and the stocktaking of existing data and information using local experts. Habitat destruction and extraction of highvalue species are major threats to biodiversity. Cross river national park crnp is a naturally endowed biodiversity hotspot with diverse resources ranging from picturesque topography, rivers, fauna and flora. The corridor concept proposes that refuges connected by corridors will have higher immigration rates than isolated patches of natural habitat. Science and society brings together in one comprehensive text contributions from leading scientific experts to assess the influence insects have on humankind and the earths fragile ecosystems. B its so close to many other places with a lot of biodiversity, so you can get to them easily. Threats to biodiversity 6 major loss of biodiversity. While learning about the negative impacts of humans on biodiversity, please keep a few things in mind. Discuss the role human activities play in species extinction and the acceleration of extinction. The fifth national report to the republic of the philippines 2014 biological diversity convention on. Biodiversity also underpins ecosystem function and the provision of ecosystem services. Biodiversity, which literally means the diversity of life, refers to the variety of life forms on earth. Many key components of biodiversity for food and agriculture at genetic, species and ecosystem levels are in decline.
The main dangers worldwide are population growth and resource consumption, climate change and global warming, habitat conversion and urbanisation, invasive alien species, overexploitation of natural resources and environmental degradation. Maintaining the connectivity of the landscape could offset their impacts on biodiversity. Biodiversity is the part of nature which includes the difference in genes among the individuals of a species, the variety and richness of all the plant and animal species at different scales in space, locally in a region, in the country and the world and various types of ecosystems, both terrestrial and aquatic within a defined area. Biodiversity can be measured through the use of quantitativeindicators, although no single unified approach exists. Michael scott usgs, idaho cooperative fish and wildlife research unit, university of idaho.
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