CHAIN AND FOOD NETS CHAIN AND FOOD NETS HHHH OOOO MMMM EEEE SSSS TTTT UUUU DDDD YYYY O O O O BBBB...

CHAIN AND FOOD CHAIN AND FOOD NETSNETS

CHAIN AND FOOD CHAIN AND FOOD NETSNETS

HOME STUDY OBJECTIVE LESSON CONTENTPRACTICE ENRICHMENT

Page: 2 CHAIN AND FOOD NETS Adaptif

STUDY OBJECTIVE

Identify process connection eats eaten in food chain and food nets

explain food chain mechanism and food nets

analyze and explain to happen detonation or population waning by using food chain concept


INTRODUCTION

connection mutual influence insides ecosystem not simple and static.

interaction action deliver componentin ecosystem can happen in the case of the need fulfillment.


ENERGY CURRENT

energy transfer and matter transfer that from mortal one to mortal other

sunlight energy source for all existing mortal life earth thing


picture 12.1: a ecosystem involves two process that is energy currents and picture 12.1: a ecosystem involves two process that is energy currents and chemistry cycle. energy enters in the form of sunlight then changed to be chemistry cycle. energy enters in the form of sunlight then changed to be chemistry energy by organism autotrof, and sustained to organism heterotrof chemistry energy by organism autotrof, and sustained to organism heterotrof in the form of organic compound in the food, and throw away in the form of in the form of organic compound in the food, and throw away in the form of hot. (source: campbell, edition biology fifth)hot. (source: campbell, edition biology fifth)

CHEMISTRY CYCLECHEMISTRY CYCLE


PRODUCERSPRODUCERS

Producers makes use

sun energy to produce food passes photosynthesis.

Sun energy is made

chemistry energy

picture 12.2: watch closely picture 12.2: watch closely photosynthesis phenomenon photosynthesis phenomenon under teacher guidance under teacher guidance (source: suparwoto, 2008)(source: suparwoto, 2008)


CONSUMER

Furthermore chemistry energy flow in ecosystem passes various consumer stage in food chain, that is primary consumer, secondary and tertiary.

Chemistry energy in consumer stage is used for mortal activity like to move, grow, and dead

picture 12.3: make use group energy picture 12.3: make use group energy herbivorous herbivorous (source: suparwoto, 2008)(source: suparwoto, 2008)


PRODUCERS ENERGY CURRENT IN ECOSYSTEMPRODUCERS ENERGY CURRENT IN ECOSYSTEM

picture 12.4: make use producers group energy (source: campbell, picture 12.4: make use producers group energy (source: campbell, edition biology fifth)edition biology fifth)


CARNIVORESCARNIVORES

Consumer I Herbivorous (Caterpillar)

Consumer II Carnivores I (Is paddybird bird)

Consumer III Carnivores II (Eagle)

Omnivores Eater everything (Human)

picture 12.5: food circulation chain (source: suparwoto, 2008)picture 12.5: food circulation chain (source: suparwoto, 2008)


FOOD NETSFOOD NETS

All energy All energy transfer transfer possibilities possibilities and food and food transfer transfer between between mortal in a mortal in a ecosystemecosystem

leaf leaf (plant (plant

/ producers/ producers

caterpillar caterpillar (consumer (consumer

prmer)prmer)

bird paddybird (consumer secondary)

snake (consumer

tertiary)

bacteria mushroom

(dekomposer)


Food chain example estrial (land) and marin

(sea)

picture 12.6: energy and butrient via pass levels trofik a when does Organism mutual consume one another. (source: campbell, edition biology fifth)

FOOD NETSFOOD NETS


A Food Net

picture 12.7: picture 12.7: connection eat-to eat connection eat-to eat

that simplified this that simplified this doesn't cover all doesn't cover all

species that eat in species that eat in each levels trofik. each levels trofik.

look at that several look at that several species consume species consume

more than one levels more than one levels trofik. trofik.

(source: campbell, (source: campbell, edition biology fifth)edition biology fifth)

FOOD NETSFOOD NETS


ECOLOGY PYRAMID

In ecosystem every organism always occupied level trofik certain.

Three ecology pyramid kinds: Total (density and population between level trofik) Biomasa (when is certain alive matter heavy classification) Energy (energy current speed in standard trofik suksesi)

Suksesi communities change process that aim to one way according to Climax suksesi end when achieve climax happen ecosystem balance

Homeostatis communities can to watch over the internal condition


picture 12.8: a clean productivity pyramid ideal

• 10% from energy available in every level trofik changed to be biomassa new 10% from energy available in every level trofik changed to be biomassa new in level trofik at on it. Look at in level trofik at on it. Look at thatthat primary producers changes only around primary producers changes only around 1% from sunlight energy. In ecosystem actually, productivity depreciation 1% from sunlight energy. In ecosystem actually, productivity depreciation with energy transfer between levels trofik vary in certain species; number with energy transfer between levels trofik vary in certain species; number 10% be a coarse average. (source: campbell, edition biology fifth)10% be a coarse average. (source: campbell, edition biology fifth)

ECOLOGY PYRAMIDECOLOGY PYRAMID


SUKSESI

Stage suksesi Colonization. a habitats mastery form by mortal Place modification place character modification

(habitats) that done by mortal colony


KIND SUKSESIKIND SUKSESI

Suksesi primary pioneer organism (crust mould and alga) form soil from rock spore is brought wind makes to grow it larger ones plant invasion likes nail Suksesi secondary ecosystem development after happen natural damage or human manner


DIFFERENCE SUKSESI PRIMARY AND SECONDARYDIFFERENCE SUKSESI PRIMARY AND SECONDARY

Beginning organism In suksesi primary, habitats and

pioneer organism from new kind that comes from area other

In suksesi secondary, permanent habitats and the communities equal to communities at first


COMPOSERSCOMPOSERS

SENO HARTONO,S.T.PM. RIYANTO,S.T.PSMKN 33 JAKARTA


PRACTICETo realize about energy current, perceive insident in ecosystem at To realize about energy current, perceive insident in ecosystem at

environment around you, and write mortal name play a part in environment around you, and write mortal name play a part in energy current process. energy current process.

table 4.2. energy current in ecosystem table 4.2. energy current in ecosystem

NONO ecosystem

energy current kind

producers

ConsumerI

ConsumerII

ConsumerIII

11 rice field light-chemistry rice

chemistries bald eagle caterpillar

22 lake light-chemistry

chemistries

33 river light-chemistry

chemistries

44 sea light-chemistry

chemistries


Factor That Influence SuksesiFactor That Influence Suksesi

Vast beginning communities that broken because disturbance Plant kind Presence spread seed Climate Soil kind formed Character and existing plant kind around place the happening of suksesi

CHAIN AND FOOD NETS CHAIN AND FOOD NETS HHHH OOOO MMMM EEEE SSSS TTTT UUUU DDDD YYYY O O O O BBBB...

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