What if few species of birds, animals and fish fauna disappeared and how it is going to affect us?

Question

What if few species of birds, animals and fish fauna disappeared and how it is going to affect us?

Answer 1

Given that the birds, fish etc were here before humans I do think its not on for us to come along and cause so much pollution, hunt animals to extinction, poison rivers, shoot animals because they eat crops etc.  Just who does the Human Race think it is???  Look at the damage we have done.  It scares me to think we have actually made animals extinct, hunted and killed animals, shot birds, hunted whales, and a lot of times in the name of sport?????????  

Wow we must be so far up our own backsides not to see the damage we are doing and we are now looking for other planets so we can go and destroy them as well.

Mankind is greedy, selfish and thinks only of himself.

What would the  world be like without birds?  Without fish and without flowers and trees.  I hope I have died before we hit that point.  It will be like living in one of those dreadful Mel Gibson apocalypse movies.

Answer 2

every organism is linked in the food chain. whether it's a plant or animal  being eaten or a animal eating something else everything is eventually connected.

plants are autotrophs - they produce their own food. animals are heterotrophs and connot so herbivores eat the plants to get their energy and that energy is transported up the food chain as each animal gets eaten by another.

if something becomes extinct there are 2 outcomes. If it was the major element in something's diet than that animal will die out and the same with the thing that eats it and the thing that eats that - it just keeps going unless they find an alternative food source. that would affect us coz were at the top of the food chain so we would have less food to eat. the other outcome is that everything bellow that animal over populates because it's not being hunted or eaten anymore so there is nothing to keep it's numbers down. think about like if all the spiders in the world died - there would be little else to controll the fly and insect population as effectively. then everything above them in the food chain would have more food to eat so they could support a bigger population. that would spread up the food chain untill the environment could no longer support those orgainsms.

Answer 3

Please read this website - its very clear, helpful and accurate.

http://www.globalissues.org/EnvIssues/Bi...

Answer 4

The dinosaurs and the rich biodiversity that existed in the pre-historic era about 64 million years ago were destroyed by a monstrous meteorite that rammed the earth.  This brought about revolutionary climatic changes. Any kind of climatic change results in noticeable destruction of one species or the other.  Take for example our misuse of electricity during day time when the sun is shining just outside our windows.  Can't we bring home the sun shine and stop burning bulbs that contribute CO2 tjat increases the risk of global warming that results in faster melting of glaciers, rising of sea level, hurricanes gaining heights, gale forces increasing and gobbling up of earth on the sea shores and extinction of different species on earth.

     It is reported by the UN Convention on Biological Diversity that due to climatic change every hour 3 species are disappearing, every day 150 species are lost and every year 18,000 to 55,000 species are vanishing.  It is reported that European honey bee colonies have collapsed in the US countryside resulting in adversely affecting the production of food articles like fruits, vegetables and seed crops because honey bees were the most responsible agents for high level pollination and now they are not there anymore.  In the next 50 years, 70% of polar bears will not be there due to hot air emissions and warming of climate.  In Indonesia, the Orangutan species are finding it difficult to survive and their number is just 7500 today.  Whales, Dolphins and plants like wild variety of peanuts, potatoes, vegetables etc., are facing difficulties for their survival due to drastic climatic changes.

    Nature has the ability to take care of itself periodically, example, bush fires of Australia, forest fires in Andes etc., to balance itself with its requirement of CO2.  But man's callous behavior to environment and fellow creators has created havoc in climatic changes. He is perpetrating

   It is necessary for all of us to protect and preserve natural resources at grassroots level and to keep some of them for our future generation.  Otherwise, we will be dubbed as irresponsible elders who were not bothered to effect a mid-course correction to the global warming/climatic change for which we alone are responsible.

   This generation has an onerous responsibility of saving the world with corrective steps to improve the survival capability of the earth.  Otherwise, it is now or never.  Stop fighting against each other - start thinking of saving our dear delicate earth. Hasn't one tsunami taught you a lesson?  Next one will be beyond our imagination.

Answer 5

It will affect the food chain. Sadly though, it is not the humans who will be directly affected. Y' know, humans can eat almost any other species in the world. The main to be affected will be other local species who live within the niche of the species which became extinct. For example, if beavers became extinct, some fish species which can't survive in fast-flowing waters will surely be affected. And what will be its effect on us humans? Almost nothing, we'll just have a hard time catching those fish again.

Notes:

Niche - the place of habitat of a species.

Beavers - animals which build dams in rivers using sticks and woods to slow the water.