Basics of Env Flashcards
The term ecosystem was coined by
Arthur Tansley
biome
A biome refers to a large geographical region characterized by a
particular set of climate conditions, plant and animal life
Fundamental Niche :
It is an ideal (hypothetical) condition where an organism could exist without ecological
interactions
Realised niche :
population exists here in the presence of or due to interactions and
competition with others.
If X can live at Y and Z but due to competition it lives at z more, then Z is realised niche
Multidimensional Niche :
Fundamental Niche and Realised niche
Gauss Law :
Competitive exclusion principle : Competition in case of the
same niche of 2 species will lead to the exclusion of 1 from that niche.
Ecotone is a zone of junction between two or more diverse ecosystems.
● Such areas have richness in biodiversity due to _______effect
edge
An Ecotype is a__
example
population of species that differs genetically from other
populations of the same species because local conditions have selected
for certain unique physiological or morphological characteristics
royal Bengal Tiger
Producers in aquatic ecosystems
: blue green algae (cyanobacteria), phytoplankton,
diatoms.
Primary consumers in aquatic ecosystem
crustaceans, zooplankton, small fish
Secondary Consumers in aquatic ecosystem
Herrings, bigger fish, sharks
Difference between detritivores and decomposers
detritivores eat and excrets and decompose ex- Earthworm, while decomposer secret chemicals that decompose
ex- Bacteria
Law of 10% : given by
raymond lindeman
Only Pyramid of _____ is always upright
energy
DDT : used to kill mosquitoes, added up in bald eagle
populations leading to their egg shells being crushed. This was
written about by Rachel Carson in her book
the silent spring.
Minamata Disease : _____bioaccumulation in shellfish
Mercury
AMENSALISM
-/0
COMMENSALISM
+/0
These are symbiotic associations between fungi and the
roots of plants.
Mycorrhizae:
Black walnut trees release a chemical
called ______that inhibits the growth of other plants growing near them.
This inhibitory effect is an example of ______
juglone, amensalism/ Allelopathy.
____________is a type of chemical interaction between plants in
which one plant releases chemicals or secondary metabolites that
affect the growth, survival, or reproduction of another plant.
Allelopathy. It is actually a subset of Amensalism
ex- sunflower , eucalyptus
Net primary productivity is Gross primary productivity
minus
respiration losses
Arctic , Antarctic
savannah ,steppes
which has more productivity
arctic, savannah
Tropical Rainforests contribute ___% of total NPP and open
ocean about ___%
22%, 24%.
mesic condition
in between water and dry
Succession would be much faster in areas that exist in the ______
of a large continent
middle
Ecesis :
establishment of initial growth of vegetation
6 phases of clement’s theory of succession
Nudation, Migration, Ecesis, competition, Reaction and Stabilization
positive feedback loop in climate change
it’s a cycle where warming leads to more warming, creating a self-reinforcing pattern that accelerates climate change.
negative feedback loop in climate change
it’s a mechanism that dampens or reduces the impact of climate change, helping to maintain equilibrium in the Earth’s climate system.
Gias hypothesis was given by by British chemist
WHAT IS IT?
James E. Lovelock and U.S.
biologist Lynn Margulis
Biosphere, Atmosphere and Hydrosphere along with evolution of life maintains
homeostasis on earth.
.
Daisy world
Daisy world : Mathematical Model to predict Gaia hypothesis.
Deep ecology
: preservation for preservation’s sake.
The Economics of Ecosystems and Biodiversity (TEEB) BY
Pavan Sukhdev, received Tyler PrizE
Global initiative of UNEP, G8, BASIC, Mexico
● Looks into green accounting methodology to calculate green domestic
product
Earth’s overshoot day
2 Aug 2023
What is overshoot day of particular country
India has overshoot day?
number of earths it will take to sustain all population of world if they lived like people of particular country
No it doesn’t, it will take only 0.7 earth to sustain all population of world if they lived like people of India
Nitrogen cycle
Nitrite by?
nitrate by?
N2 - NH3 ( ammonia) - NO2(Nitrite) - NO3 (Nitrate)
nitrite by Nitrosomonas and Nitrate by Nitrobacter
Shannon Weiner Index
indicating greater diversity and evenness in the sample. Higher the value - greater the surprise that means more diversity
Simpson’s Index
measures what? Low means ?
Helps measure diversity. Low means high.
What is Alpha, Beta, and Gamma diversity
Alpha - It measures the diversity within a single habitat or ecosystem
Beta - It measures the change in species composition or diversity between different habitats or ecosystems
Gamma - It measures the overall diversity across a large geographic area or region, taking into account all the different habitats or ecosystems within that area.
who coined term Biodiversity Hotspot
Norman Myers
criteria for Biodiversity hotspot
Contain at least 1,500 species of vascular plants found nowhere else
on Earth (known as “endemic” species).
○ Have lost at least 70 percent of its primary native vegetation due to
human action.
Biodiversity Hotspots of India
Biodiversity Hotspots of India
○ Western Ghats
○ North east (except Assam) and Andaman (part of Indo-Burma
hotspot)
○ Nicobar (part of Sundaland hotspot)
○ Himalaya
Hottest of hot spots - 8
Hottest of hot spots - 8
○ Indo – Burma region
○ Sundaland
○ Philippines
○ Western Ghats & Srilanka
○ Madagascar
○ Eastern arc & coastal forests of Tanzania/Kenya
○ Caribbean island
○ Brazil’s Atlantic forests
Megadiverse countries
in?
by?
no of countries?
criteria?
list?
Megadiverse countries
○ 1988, by UNEP
○ 17 countries
○ Criteria
■ Have at least 5000 of the world’s plants as endemics
■ Must have marine ecosystems.
Brazil Colombia Ecuador Peru United States of America Venezuela Mexico China India Democratic Republic of the Congo Madagascar South Africa Indonesia Malaysia Papua New Guinea Australia Philippines
like Minded Megadiverse Countries
● Concept originated in?
criteria
Minded Megadiverse Countries
● Concept originated in the Cancun summit in 2002
● Only criteria is that country should be diverse and have associated
traditional knowledge.
● Therefore, a landlocked country can be LMMC but not megadiverse
country.
BKC countries added - Bolvia, kenya, costa rica
● Ex : India is Both LMMC and Megadiverse.
● USA is Megadiverse but not LMMC.
● Kenya is LMMC but not Megadiverse
USA, Australia, papa new gunia eliminated
Globally Important Agricultural Heritage Systems (GIAHS) by , which are included
FAO
Koraput Traditional Agriculture, Odisha
○ Kuttanad Below Sea Level Farming System, Kerala
○ Pampore Saffron Heritage, Jammu & Kashmir
Threats to Biodiversity
● Identified by Intergovernmental Science-Policy Platform on Biodiversity
and Ecosystem Services (IPBES)
○ Founded in 2012
○ India is a member
recognize threats are -
Land Use change
○ Deforestation, mining, fragmentation of habitats
● Climate change
○ IUCN- if 2°C rise in the earth’s temperature : 6th mass extinction
● Overexploitation
○ Hunting, poaching
Invasive alien species
Pollution and Genetic pollution - GM crops etc
Some invasive alien species
Profis julifora, latana camara,
Montreux record
Keoladeo
Loktak
WPA establishes which institutions?
Central Zoo Authority
National Tiger Conservation Authority – headed by minister of MOEFCC
● Tiger conservation foundation
state wildlife advisory board
Wildlife crime control bureau
under Forest Conservation Act, 1980 Prior approval of the ________ is essential for diversion of
forest lands for the non-forestry purposes
The Act deals with the four categories of the forests, namely
Central Government
reserved forests, village forests, protected forests and private forests.
The act has been amended 8 times. The legislation is based on a Resolution of the Legislature of 11 States,
invoking Article 252 of the Constitution
The Act initially applied to only those State Governments whose
Legislatures passed the requisite resolution, but was later extended to all
States.
.
which act is it ?
WPA
Can State or Centre declare wildlife and national park via notification?
Yes
According to WPA, the ________may appoint Chief Wildlife Warden. _______ may appoint directors and assistant directors.
Alteration of boundaries can be done by States only with prior approval of ?
State government , Central government
National Board for Wildlife
Wildlife Crime Control Bureau (statutory status)– headed by ____– appointed by _____
● Chief Wildlife Warden – appointed by?
● National Board of Wildlife – headed by ?
● State Board of Wildlife – headed by?
● National Tiger Conservation Authority – headed by ?
● Tiger conservation foundation – To be established by ?
Director of Wildlife Preservation, Central Government
state Governments
Prime Minister
Chief Minister
minister of Ministry of Environment Forest and Climate Change
states
(Central government or state government?)________ may, by notification, declare any wild animal specified
in Schedule II to be Vermin
(Central Government or state government?)_________ may add or delete any entry to or from any Schedule or
transfer any entry from one Part of a Schedule to another Part of the same
Schedule or from one Schedule to another
Chief Wildlife Warden will manage and protect sanctuaries in accordance
with the management plans prepared as per guidelines of the ________
In case of sanctuaries falling under scheduled areas or areas where FRA 2006 is applicable, the management plan for
such sanctuary will be prepared after due consultation with the ________
Central govt *3
gram sabha
schedule 1,2,3,4 under WPA
1 - protected
2 - less protected
3 - Plants
4 - CITES
General Violation to Rs ____
Specially protected animals At least Rs _____ Under WPA
1,00,000, 25,000
Conservation Reserve and community reserve are declared by?
ACT?
Owner?
Land by?
Location?
Number of?
Both
state govt
If the conservation reserve includes any land owned by the Central Government, its prior concurrence is required before making such a declaration
Trick to remember - ‘COM’munist ‘State’
WPA
State, but in comminity reserve - private individuals/ local tribes
adjacent to national park but community reserve can be anywhere
100 and 219
under forest rights act
_______govt may constitute any forest land or waste land as reserved
forest which is the property of Government and may sell the produce from
these forests.
Before issuing official notification state government needs to appoint a
________ (has power of Civil Courts) to inquire and to provide settlements to persons belonging to that area.
State government , Forest Settlement Officer
Under FRA
All activities are________ in Reserve forest
All activities are__________ in Protected forest
prohibited unless permitted
permitted unless prohibited
Under FCA which apex body that deliberates on granting
permission to fell forests
The Forest Advisory Committee
Under forest conservation act
project screening committee (which recommends projects )constituted by?
frequency of meeting?
It examines proposal by state/UT except projects less than or equal to ____ hectors
Regional empowered committee (which examines the projects)
constituted by?
Frequency of meeting?
advisory committee ( which gives approvals)
constituted by? members?
frequency ?
State or UT
twice every month
5
central government
twice every month
Central govt
6
Set up every month
Forest rights act is implemented by
Tribal ministry
The Gram Sabha has been designated as the competent authority for
initiating the process of determining the nature and extent of individual or
community forest rights.
The decision of the Gram Sabha to reject or allow claim can it be appealed
before court???
Yes
Under forest rights act
ST have condition that they should be living in forest before )____
Other dwellers have condition that they should be living for at least ___
2005
3 generations
The FRA act identifies 4 types of rights
● Title rights: Gives right to ownership to land farmed forest dwellers subject
to a maximum of ________ hectares.
● Use rights: Rights of the dwellers extend to extracting __________, etc.
● Relief and development rights: Rehabilitation in case of illegal eviction or
forced displacement and to basic amenities, subject to restrictions for forest
protection.
● Forest management rights: Right to protect, regenerate or conserve or
manage any _____ forest resource which they have been traditionally
protecting and conserving for sustainable use
4, Minor Forest
Produce, grazing areas
community
not every ST get habitat rights only PVTGs get
forest dweller rights act identifies _____ ministry as the
agency to notify the guidelines related to Critical Wildlife Habitats.
do STs get rights to critical wildlife habitats»???
Ministry of Environment, Forest and Climate
NO
Certain tribes are called PVTGs based on their greater vulnerability
classified as such after _______Commission
____ PVTGs distributed among 18 states and UTs of India
Odisha houses for _____PVTGs which is the highest among all the states.
_______ were the first PVTG in India to be granted habitat rights
Dhebhar
75
13
Baigas
state ranking
acc to sq km
acc to %
MP> Aruna> Chattis>Odhisha> mah - acc to sq km
Lakshadweep, Mizoram, aruna, Meghalaya - acc to percentage
MP mai ARUNA ne CHATTIS OREO khaye
LAX-MI Aruna MEGHA
Under Section 37 of Biological Diversity Act, 2002 the ___Government
in consultation with ______-may notify the areas of biodiversity
importance as Biodiversity Heritage Sites
First Biodiversity Heritage Site of India- _____ in
Bengaluru, Karnataka (2007).
Presently _______BHS are in India
State , local bodies, Nallur Tamarind Grove
36 ,
Was water conservation act made under 252 article?
which two imp bodies established?
yes, central pollution control board and state pollution control board
Under env pro act a citizen can file a complain for alleged env offence which should not be less than ___ days old
60
central ground water authority is under which act?
env pro act
Ecologically sensitive zone notified by?
under?
is agriculture allowed?
central govt
env pro act
yes
if we want to protect forest along with tribes together which will be best strategy
Biosphere reserve
national Park
wildlife sanctuary
biosphere reserve
Under forest right act tribals have right to fell bamboos ______ (inside or outside) forest area?
outside
Coastal Regulation Zone (CRZ) Rules
● In accordance with the _____Act of ______
Environment Protection 1986
NGT has not been vested with powers to hear any matter relating to:______and _______-
The order of National Green Tribunal can be challenged before the Supreme
Court within ___ days
● Wildlife (Protection) Act, 1972.
● Indian Forest Act, 1927.
90
The Protection of Plant Varieties & Farmers’
Rights (PPVFR) Act, 2001 act allows farmers to plant, grow, exchange & sell patent-protected
crops, including seeds, & only bars them from selling it as _______ .
“branded seed”
Animal Welfare Board of India
● Established in _____ under the Act__________
● Started under the stewardship of Late___________
1962, Prevention of Cruelty to Animals, smt Arundale
National Tiger Conservation Authority
● It is a statutory body constituted under _______for tiger
conservation.
● It is headed by the ______
● The Authority has_____ Members of Parliament of whom ____ will be
elected by the House of the People and _____ by the Council of States
the WPA, 1972
minister of Ministry of Environment Forest & Climate
Change.
three, two, one
No alteration of boundaries in National Parks and Wildlife Sanctuaries can
be done without approval of the ______
National board for wildlife
India State of Forest Report is brought by ______ with hq at _____
Forest survey of India which is under Min of Env
Dehradun
Assam
Brahmaputra river doesn’t pass through which NP in assam?
Sankosh river passes through?
- Raimona National Park
- Manas National Park (WHS/ TR / ER / BR)
- Orang National Park and Tiger Reserve (NP/TR)
- Nameri National Park (TR)
- Kaziranga National Park (mentioned later)
- Dibru - Saikhowa National Park (BR)
- Dehing Patkai National Park (ER)
raimona, Manas, Nameri
Raimona
95 % of the greenhouse effect is caused by_____ and ______ in the atmosphere
water vapour, small water
particles
dobson unit
measurement of ozone layer
‘Global Methane Assessment: 2030 Baseline Report’
● Released by
Climate and Clean Air Coalition (CCAC) and United Nations Environment Programme (UNEP), launched at Climate and Clean Air ministerial
meeting at COP 27 to the UNFCCC
Eustatic changes
● It occur when the volume of sea water changes due to factors such as global warming
and ____ and ____
melting of ice sheets (rise in sea level) or ice ages (fall in sea level), melting of ice sheets (rise in sea level) or ice ages (fall in sea level), changes
in the volume of mid-oceanic ridges.
Barbados Plan of Action (BPOA). It is the only internationally approved
Programme specific to _____
____ Strategy : 10 year comprehensive review of the BPOA in 2005.
small island development state to fight climate change,
Mauritius
cyclone/ storm becomes a “bomb” when its central pressure decreases very quickly—by at least ____ millibars in _____hours
The term “bomb cyclone” was introduced by meteorologists ____ and____ in a 1980 study.
24,24 , Fred Sanders, John Gyakum,
carbon fertilisation is increasing ______
carbon sink on land temporarily.
Ahermatypic Polyps
● Corals which live without ______& ______.
● Do they BUILD REEFS.?
● Is it found in swallow waters or deep oceans?
● It collects food directly from flowing water.
● It is found in cold, deep oceans. - ________
● Fire Corals, Organ pipe Corals, Black Corals (India)
● Fire coral : type of hydrocoral, mentioned in schedule____ of WPA, very
rare
(polyps that don’t form reefs)
symbiotic relations , Zooxanthellaes
no
deep ocean
Antarctica, Canada, Norway, US,
UK, Japan, NZ.
1
(Dendrogyra cylindrus) is a ?
Pillar coral
Epizootics :?
when diseases is caused in animals by pathogen which is similar to epidemic in animals.
It is like epidemic within animals (not humans)
which country in oceanic island is not a part of Coral Triangle Initiative
Australia
Fibbing
Hidden trade off
make env claims that are simply untrue
Make env friendly claim on the fact of just one attribute
_________ is a graph that shows the long term increase of atmospheric carbon dioxide
(CO2) concentrations since the late 1950s.
The Keeling Curve