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Why are pesticides harmful to birds at or near the top of the food chain?
Wiki User
∙ 13y ago
b/c animals in which the birds are eating are being affected by the pesticides which kills them. If the animals at the lower part of the food chain start to grow extinct then there will be no more food for the animals at the top of the food chains which means they will more than likely die off or become extinct
Wiki User
∙ 13y ago
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Why are pesticides a problem?
because as they contain many chemicals which give benefit to the soil but these chemicals effect the aquatic life and also effects the food chain. That's why over usage of pesticides is harmful.
How does using the pesticides affect the food chain?
ewan
Why and how do pesticides use in Mexico affect some of our birds?
Pesticides kill birds and other species as well as humans. Bird eggs are deformed or the chicks have some sort of deformities. Condors have been particularly hit with pesticides and the population has been in danger for a long time. Many birds are migratory between the United States and Mexico ( they don't know boundaries) and pollution of all sorts has effected their populations. Pesticides run into rivers, lakes, and other waters. The pollutants get into the food chain and into the birds and animals that feed off the various plants and fish. Oil spills in the Gulf of Mexico have contributed to this and once the oil is in the food chain it spreads into the entire environment . Oil will remain a 100 years in the environment.
What types of food are organic?
Any food that is produced without harmful chemicals, pesticides or preservatives are organic.
Should pesticides be used to produce more food?
no because pesticides can also kill some crops, they are also harmful to the human body
What areas are affected by pesticides?
Land and waterways are affected by pesticides. Other than that, insects and animals that are part of the food chain can be affected.
How do pesticides become accumulated along the food chain?
When pesticides are sprayed into stagnent pools of water, either by accident or on purpose, small larvae eat the pesticide. Then it gradually travels up the food chain by predators eating their prey.
What type of food cannot be organic?
Foods that are produced with harmful chemicals, preservatives and pesticides are not organic.
What is the name of the process in which a harmful chemical enters the food chain and gets concentrated in the food chain?
Bio-accumulation.
The DDT problem is a good example of how pesticides can contaminate human health through what?
the food chain
How can the pesticides that farmers use help increase food production also be harmful?
Because they use pesticides to killcrop-destroying pests,the pesticides they use have harmful poison in them.....therefore it is harmful. The most notable is simply misapplication of a pesticide. In the U.S.A., application of pesticides to control any pest is strictly regulated by the Environmental Protection Agency, various state Departments of Agriculture, and several other agencies. However, mistakes can happen in the application of a pesticide which might leave a potentially harmful residue in the end product. While extremely rare, there have been cases of residues in the human food chain which attain unhealthful levels. Misapplication can also result in levels of the compound which escape the confines of the production field and harm the surrounding environment.
How can the pesticides that farmers use to help us increase food production also be harmful?
Because they use pesticides to killcrop-destroying pests,the pesticides they use have harmful poison in them.....therefore it is harmful. The most notable is simply misapplication of a pesticide. In the U.S.A., application of pesticides to control any pest is strictly regulated by the Environmental Protection Agency, various state Departments of Agriculture, and several other agencies. However, mistakes can happen in the application of a pesticide which might leave a potentially harmful residue in the end product. While extremely rare, there have been cases of residues in the human food chain which attain unhealthful levels. Misapplication can also result in levels of the compound which escape the confines of the production field and harm the surrounding environment.
