Chapters :
  •  

BIODIVERSITY AND CONSERVATION – 03

ENDANGERED SPECIES

Endangered species are any species that is at risk of extinction because of a sudden rapid decrease in its population or a loss of its critical habitat. 

An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species

Example : 


Lycaon pictus
Endangered
Asian ElephantEndangered
Blue WhaleEndangered
ChimpanzeeEndangered
Ganges River DolphinEndangered
Green TurtleEndangered
Indus River DolphinEndangered
Red PandaEndangered
Sea LionsEndangered
Sea TurtleEndangered
TigerEndangered

Any species of plant or animal that was threatened with extinction could be called an endangered species. The need for separate definitions of “endangered” and “threatened” species resulted in the development of various categorization systems. Each containing definitions and criteria by which a species can be classified according to its risk of extinction. 

VALUES OF BIODIVERSITY

 

Biodiversity is the most precious gift of nature mankind is blessed with. As all the organisms in an ecosystem are interlinked and interdependent, the value of biodiversity in the life of all the organisms including humans 

is enormous. Firstly Biodiversity is directly used as a source for food, fibre, fuel and other extractable resources. Secondly, biodiversity plays an important role in ecosystem processes providing the regulating, cultural and supporting services.

ECOLOGICAL VALUE:

Biological diversity is also essential for preserving ecological processes, such as fixing and re- cycling of nutrients, soil formation, circulation and cleansing of air and water, global life support (plants absorb CO2, give out O2), maintaining stream and river flows throughout the year, erosion control and local flood reduction.

CONSUMPTIVE USE VALUE

The direct utilisation of timber, food, fuel wood, fodder by local communities. The biodiversity held in the ecosystem provides forest dwellers with all their daily needs, food, building material, fodder, medicines and a variety of other products. They know the qualities and different uses of wood from different species of trees, and collect a large number of local fruits, roots and plant material that they use as food, construction material or medicines. Fisher folk are highly dependent on fish and know where and how to catch fish and other edible aquatic animals and plants.

PRODUCTIVE USE VALUE

Marketable goods such as timber are available. It is the raw material from which new drugs can be identified from plant or animal products. Preservation of biodiversity has now become essential for industrial growth and economic development. A variety of industries such as pharmaceuticals are highly dependent on identifying compounds of great economic value from the wide variety of wild species of plants located in undisturbed natural forests. This is called bio- logical prospecting.

ETHICAL AND MORAL VALUES

Ethical values related to biodiversity conservation are based on the importance of protecting all forms of life. Tribal people in our country We have in our country a large number of sacred groves or ‘deorais’ pre- served by in several States. These sacred groves around ancient sacred sites and temples act as gene banks of wild plants.

MAJOR THREATS TO THE BIODIVERSITY

Any sort of change incurred by natural or anthropogenic activities in the local environmental conditions may pose a threat to the plant/ animal/ microbial diversity sustaining there. In fact the habitat degradation and fragmentation, caused by human-induced land use changes is the main factor driving biodiversity loss.

 World Wide Fund (WWF) report suggests that 52% of the world’s biodiversity (including terrestrial, freshwater and marine diversity) has been lost in a 40 year span between 1970 and 2010, freshwater diversity being affected most.

Activities such as Urbanization, Expansion Of Agricultural Lands, Industrialization, Deforestation, Mining, Damming And Dredging Of Rivers, And Draining Of Wetlands, Estuaries and mangroves are majorly responsible for turning a habitat unsuitable for the local species.

THREATS & THEIR CAUSES.

Threats to biodiversity in terrestrial ecosystems Underlying causes 
Habitat degradation and fragmentation Deforestation, Urbanization, industrialization, expansion of agricultural lands and extension of road network, invasion in wild areas for recreation and tourism 
Dynamic relationship between agriculture and wildlife Modernization of agricultural practices and disappearance of natural hosts of wildlife such as hedges, trees, ponds, etc. 
Pollution 

Population explosion, 

Industrialization, increased number of vehicles, use of excessive fertilizers in agricultural practices, unhealthy 

waste management techniques etc. 

Invasions by

 alien species 

International trade and transport, 

use of exotic plant species in gardening 

and forestry, introduction of exotic species

 for hybridization, climate change. 

Epidemics 

Introduction of exotic pests, pollution 

and habitat destruction 

Climate change 

Emissions of greenhouse 

gases, deforestation and other land 

use changes due to human activities 

Desiccation of 

soils and wetlands 

Overuse of underground water tables 
PoachingHigh value of animal products in black market, usage of animal products in traditional medicines in south east Asia and china

SPECIES EXTINCTION

It is estimated that more than 99.9% of all species that had ever lived on this planet earth have gone extinct. Out of the rest, 0.1% of extant species (species that are living today) which is currently estimated to be around 1 trillion, we know only one thousandth of one percentage of this, indicating extreme knowledge gap. It is now estimated that almost half of all extant species will go extinct by 2100 even before these species are discovered and characterized. Extinction, or more specifically ‘species extinction,’ refers the death of the last member of a species.

Kinds of Species vulnerable to extinction:

  • Rare species (as listed by IUCN) 
  • Species with restricted geographical range (such as the organisms dwelling on the island ecosystems) 
  • Species occurring at the sites of high human disturbance/ exploitation 
  • Species with large/ specialized/ stable habitat requirements 
  • Species with slow reproductive rate 
  • Species being heavily predated 
  • Seasonal migrants 
  • Species with lesser genetic variability 
  • Species with no prior contact with humans 
  • Species closely related to the extinct or threatened species. 

 

HIPPO, OR THE SIXTH MASS EXTINCTION:

HIPPO stands for Habitat Loss and Destruction, Invasive Species, Pollution, Human Population, and Overharvesting. Because of human population expansion and agriculture, a number of pristine habitats have now completely altered. Habitat loss is especially prone in the wetland ecosystems of the world, and a number of endemic species of the wetlandshave become extinct. There are at least 784 confirmed species extinctions since 1500s. The main causes of this event can be summarized in the acronym HIPPO

BIO PIRACY

Definition 

Bio piracy is the practice of commercially exploiting naturally occurring genetic material or biochemical. Most of the indigenous people possess a traditional knowledge that mainly comprises of genetic diversity and biological feature of the natural environment from generation to generation. Some of the traditional knowledge that is relevant to global survival includes the following components.

  • Medicinal Plants.
  • Farming or Agriculture.
  • Varieties of Food crops.

CONVENTION OF BIOLOGICAL DIVERSITY (CBD)

There had been no inter-governmental legislations or legal frameworks until 1992 Earth Summit in Rio de Jeneiro, Brazil when United Nations adopted Convention of Biological Diversity, CBD that ensures fair benefit sharing between all the parties involved with the bio prospecting. There were in total 196 countries and European Union (notable exception is USA) ratified the CBD.

The UN Convention on Biological Diversity (CBD) has existed since 1992 and meets every two years to discuss biodiversity conservation, sustainable use of biodiversity and sharing of genetic resources. As part of the CBD agreements, in 2010 the EU signed the Aichi targets, thereby agreeing to halt global biodiversity loss by 2020. However, WWF’s Living Planet Index, which tracks the state of the world’s biological diversity, has shown that these targets will not be met.

The convention also made agreements for technology transfer, impact assessment, technical and scientific corporation, education and public awareness and provision for financial resources. 

The treaty was later modified to include transparent legal frameworks for equitable benefit sharing in the meeting held at Nagoya, Japan in 2010, a supplementary agreement commonly known as Nagoya Protocol.

 The protocol entered into force in 2014 and had been ratified by 96 parties including European Union till date (exceptions include US, Canada and Russia). India enacted Biological Diversity Act in 2002 for giving effect to the provisions of the CBD. 

In 2020, the CBD COP will be a pivotal meeting for biodiversity conservation, as a post-2020 Biodiversity Strategy will be agreed upon for the following decade. As a party to the CBD, the EU operates as one single bloc at the table, and so it is crucial that it shows strong leadership, commitments and tangible targets to protect biodiversity.

Primary Authorities under the Act

error: Content is protected !!
Scroll to Top