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  • FAQs
 
| Last Updated:: 06/02/2017

FAQs

 

What is ecology?                                                                                                                            Ecology   is   the   study   of  organisms  and  their  relationship  with  their  surroundings. Specifically, ecologists study the interaction between organisms and their environment.

 

What is an ecosystem?                                                                                                                               An ecosystem  includes  all  the  abiotic (non-living)  factors  in  addition  to  the community  of  biotic (living) things that exists in a certain area.

 

What is a food chain/food web?
A food chain is a simple model showing  the  flow of  nutritional  energy  through  an  ecosystem. This means that a food chain shows the path of  food  from  one  organism to another, transferring energy to the organism digesting the food.

 

What is climate change?

Climate change is a shift in ‘climate’ relative to a  given reference time  period. It may  be caused by 1. Natural  factors  like  solar  variabilities, volcanic  dust  levels, Internal variability etc. 2. Human factor like emission of green house gases, aerosols, ozone depletion, land use changes etc.

 

What is the greenhouse effect, and how does it affect the climate?
The greenhouse effect is a natural process that helps make the  Earth  warm  enough for us to live. It works  like  this: The  Earth  gets  energy  from  the  sun,  heats  up, and  then  gives  off  energy in a different form, called  infrared  radiation. Greenhouse  gases  in  the  atmosphere  trap  some  of  this energy before it  escapes  to outer space, warming the atmosphere. But people's activities are adding extra greenhouse  gases  to  the  atmosphere, so  the  greenhouse effect is becoming stronger and the Earth is getting warmer.

 

Can climate change harm plants?                                                                                                                                            Yes. Any change in the  climate  of  an  area  can   affect  the   plants  that   live  there. Some   plants might   adapt, but   others   could   have   trouble   surviving. Climate  change also  alters plants' life cycles. For example, some flowers are blooming earlier in the spring.

 

What is IPCC?                                                                                                                                                                                    IPCC  is  Intergovermental  Panel  of  Climate  Change. The  role  of   the  IPCC  is t o  assess  on  a comprehensive, objective, open and transparent  basis  the  scientific, technical  and socio-economic information relevant to understanding the scientific basis of  risk of  human-induced climate change, its potential impacts and options for adaptation and mitigation.

  

What is an invasive species?

Invasive s pecies  are  species  that  are non-native (or alien) to  the  ecosystem  under  consideration and  whose  introduction causes  or  is  likely to  cause economic or environmental harm, or harm  to human health. Invasive species can be plants, animals, or pathogens.

 

 

What are the effects of increased UV-B radiation on crops and forests?                                          Most plants  have  UV  shielding,  but   not   always  sufficient  for  complete   protection.  Only  a small proportion  of  the  UV-B radiation  striking  a  leaf penetrates  into  the  inner  tissues.  When  exposed   to  enhanced UV-B  radiation,   many  species  of  plants  can increase  the  UV-absorbing pigments  in   their  outer  leaf   tissues. Other   adaptations   may   include  increased   thickness  of  leaves that  reduces the proportion of inner tissues exposed  to  UV-B radiation  and changes  in  the  protecting waxy  layer of  the  leaves. Several  repair  mechanisms  exist  in  plants, including  repair systems  for  DNA damage or oxidant injury. The net damage a plant experiences is the result of  the balance between  damage and protection and repair processes.

 

What is Bioremediation?                                                                                                                                        Bioremediation is an emerging technology that employs the use of plants and microbes for the cleanup of contaminated environment.

 

 

What is phytoremediation?                                                                                                                   Phytoremediation uses plants to cleanup  contaminated  soil  and  groundwater, taking  advantage of the plants natural abilities to take up, accumulate, and or degrade constituents of their soil and water environments.

 

Which plants are known as hyperaccumulator plants?                                                                                             hyperaccumulator  is  a  plant  capable  of  growing  in  soils  with very  high  concentrations of metals, absorbing these  metals  through   their  roots,  and  concentrating  extremely  high levels  of  metals in their tissues.

 

What are bio-monitors?                                                                                                                                                 Bioindicators that provide quantitative information on levels of pollution and allow the identification of change in the course of time are defined as “biomonitors”.                                                                                  Some of the essential characteristics of biomonitors are:                                                                            (1) the organism must be capable of accumulating metals in measurable amounts;                               (2) the organism or the relevant part of it, must be readily available, in terms of quality and distribution, to make unbiased sampling possible;                                                                                     (3) the study must be repeatable;                                                                                                               (4) the cost of collection and analysis should be acceptable

 

 

Where can I get more information about the science and effects of ozone depletion?                        There   are   many   websites   that   contain   information   on   ozone,  UV,  environmental   effects  and      related topics. However, some  are  outdated  and  some  may  contain incorrect   information. The       sites    mentioned   below  belong   to   dependable   organisations  and  contain   dependable information. Most of these sites contain links to other sources of information.                                                     

UNEP: www.unep.org;

WMO:www.wmo.ch;

WHO:www.who.int;

IPCC: www.ipcc.ch;

NOAA:www.al.noaa.gov;

EPA:www.epa.gov/

NASA:http://jwocky.gsfc.nasa.gov

 

 

Will Plant Tissue Culture plants become an invasive species?

As  with  any  plant  propagation   technique, it  is  important  to  understand  the  environment   that you would place the plant to avoid introducing a potentillay invasive species.

 

 

What is Plant Tissue Culture?
It is the process of producing plants from the tissue of a desired plant in an artifical nutrient medium under controlled environment. The plants produced are genetically identical to the original plant.