What are merits and demerits of ex situ and in situ conservation?

What are merits and demerits of ex situ and in situ conservation?

Advantages and Disadvantages of ex situ conservation Advantages  Organisms are completely protected from predation and poaching  Health of individuals can be monitored and medical assistance given as required  Populations can be more effectively managed and divided if disaster strikes  Genetic diversity of the …

Who first coined the term biodiversity?

Walter Rosen

What are the three important components of biodiversity?

Three components of biodiversity are ecosystem, species and genetic diversity.

Who Popularised the term biodiversity?

Edward Wilson

What are the disadvantages of in situ conservation?


  • Endangered habitats may be fragmented so the area may not be large enough to ensure the survival of these species.
  • Genetic diversity may have already been dramatically decreased.
  • Conditions that threatened the organisms in the area may still be present, e.g. disease or interspecific competition.

What are the limitations of in situ and ex situ conservation strategies?

In-situ conservation is done by creating an out-like environment for animals and plants, so as to keep them under close supervision and gain more knowledge about their behaviour and reactions. However, in this method, animals suffer a lot more than ex-situ and are prone to danger by humans.

Which of the following is an example of ex-situ conservation?

Ex-situ: The conservation of elements of biodiversity out of the context of their natural habitats is referred to as ex-situ conservation. Zoos, botanical gardens and seed banks are all example of ex-situ conservation.

What is in situ conservation with examples?

In situ Conservation is one of the methods of the conservation of genetic resources in natural populations of plant or animal species….Shakeel Anwar.

In situ Conservation Ex situ Conservation
Example- National parks, biosphere reserves, parks, sanctuaries. Example- Zoo, aquarium, seed banks, botanical gardens, etc.

How many biogeographic does India have?

ten biogeographic zones

Which is the advantage of ex situ conservation?

There are several advantages associated with ex situ conservation: It allows for greater control of essential conditions (e.g. climate control, dietary intake, veterinary care, etc.) It can improve the chances of successful breeding by utilising artificial methods (e.g. embryo transfer, IVF, etc.)

What is in situ method for?

In situ refers to recovery techniques which apply heat or solvents to heavy crude oil or bitumen reservoirs beneath the earth’s crust. There are several varieties of in situ techniques, but the ones which work best in the oil sands use heat (steam).

Is National Park an example of ex situ conservation?

Complete answer: Ex situ conservation is the conservation of areas outside their natural habitat. Examples; national parks, sanctuaries, natural reserves, reserves of the biosphere, sacred grooves, etc. So, the option C is the correct answer.

Which of the following is not an example of in situ conservation?

Here botanical garden is not an example of in situ conservation. In-situ conservation is the conservation of genetic resources for plants or animal species, such as forest genetic resources in natural populations of Teagan species.

Which of the following has maximum genetic diversity in India?


Is Botanical Garden in situ conservation?

Botanic gardens conserve plant diversity ex situ and can prevent extinction through integrated conservation action. We reveal that botanic gardens manage at least 105,634 species, equating to 30% of all plant species diversity, and conserve over 41% of known threatened species.

Which is the ex-situ conservation method for endangered species?

Off-site conservation is called as ex-situ conservation, which deals with conservation of an endangered species outside its natural habitat. In this method genetic information of cultivated and wild plant species is preserved in the form of in vitro cultures and seeds, which are stored as gene banks for long-term use.

What is the method of ex situ conservation?

Ex situ conservation is the technique of conservation of all levels of biological diversity outside their natural habitats through different techniques like zoo, captive breeding, aquarium, botanical garden, and gene bank.

Which species are high in number in orchids?

State-wise distribution The highest number of orchid species is recorded from Arunachal Pradesh with 612 species, followed by Sikkim 560 species and West Bengal; Darjeeling Himalayas have also high species concentration, with 479 species.

Why should we conserve biodiversity?

Biodiversity conservation protects plant, animal, microbial and genetic resources for food production, agriculture, and ecosystem functions such as fertilizing the soil, recycling nutrients, regulating pests and disease, controlling erosion, and pollinating crops and trees.

Which of the following loss of Rivet will be more crucial for the flight safety?

If both assertion and reason are false. Solution : According to The River Popper hypothesis, loss of rivets on the wings is obviously a more serious threat of flight safety than loss of a few rivets on the seats or windows inside the plane as which rivet is removed from the airplane may also be critical.

What is the impact of greater niche specialization on biodiversity?

A constant environment promotes niche specialization, and leads to a greater species diversity. More solar energy is available in the tropics. It contributes to higher productivity. It may have indirectly contributed to greater diversity in the tropics.

What is the rivet popper hypothesis?

Answer: Ecologist Paul Ehrlich gave rivet popper hypothesis to help understand the contribution species richness, He compared each species with rivet in the body of an airplane. (i) This hypothesis explains that ecosystem to be an airplane and the species to be the rivets joining all parts together.

What is the importance of ecological niches?

Ecological niches allow species to exist in their environment. Under the right conditions, the species will thrive and play a unique role. Without the ecological niches, there would be less biodiversity, and the ecosystem would not be in balance.

Which is better in situ or ex situ conservation?

In-situ Conservation provides protection to endangered species against their predators. Ex-situ Conservation provides protection against all harmful factors. Both the types of conservation are unique and important in their own ways.

What means rivet?

1 : to fasten with or as if with rivets. 2 : to upset the end or point of (something, such as a metallic pin, rod, or bolt) by beating or pressing so as to form a head. 3 : to fasten or fix firmly stood riveted by fright.

Which region is rich in species diversity?

Species diversity is greatest in the tropics, particularly in tropical forests and coral reefs. The Amazon basin in South America has the largest area of tropical forests. The southwestern Pacific has the greatest diver- sity of coral reef species.

How many orchid species have been reported Ncert?

The common man would find it hard to believe that there are more than 20,000 species of ants, 3,00,000 species of beetles, 28,000 species of fishes and nearly 20,000 species of orchids.

Who proposed rivet popper hypothesis?

Paul Ehrlich

Which of the following is not included under in situ conservation?

Complete answer: Zoological/botanical garden is not included under in situ conservation. In India, ecologically unique and biodiversity-rich regions are legally protected by the forest authorities as biosphere reserves, national parks, and sanctuaries.

What is a main goal of in situ conservation?

In-situ conservation aims to enable biodiversity to maintain itself within the context of the ecosystem in which it is found. In-situ management approaches can either be targeted at populations of selected species (species-centred) or whole ecosystems (ecosystem-based).