Which scientists used data to show how pesticides harmed animals?

1. What is the science behind pesticides?
2. How are animals harmed by pesticides and chemicals?
3. What is an example of how pesticides have damaged wildlife?
4. How can pesticide affect animals?
5. What is bio control?
6. How do pesticides affect agriculture?
7. What animals affect pesticides?
8. How does chemical pollution affect animals?
9. How do pesticides affect aquatic plants and animals?
10. How do pesticides help animals?
11. What was the effect of the pesticide on insect predator species diversity?
12. How are pesticides harming bird populations?
13. Who is invented DDT?
14. How do pesticides affect an ecosystem?
15. How many animals have died from pesticides?

What is the science behind pesticides?

Pesticides are biologically active substances, their toxic and biocidal nature enables them to kill and harm living things. Since pesticides by nature are used to have detrimental effects on biological organisms, they are at the same time a serious threat to living organisms that were not intended to be controlled.

How are animals harmed by pesticides and chemicals?

Wildlife can be impacted by pesticides through their direct or indirect application, such as pesticide drift, secondary poisoning, runoff into local water bodies, or groundwater contamination. It is possible that some animals could be sprayed directly; others consume plants or prey that have been exposed to pesticides.

What is an example of how pesticides have damaged wildlife?

Examples of acute wildlife poisoning include fish kills that are caused by pesticide residues carried to ponds, streams, or rivers by surface runoff or spray drift and bird die-offs caused by foraging on pesticide-treated vegetation or insects, or by consumption of pesticide-treated granules, baits, or seeds.

How can pesticide affect animals?

These chemicals not only can kill wild animals, but can also disrupt hormones in animals, affecting behavior and the ability to reproduce. ... Some persistent pesticides can build up in the bodies of animals, including humans. The natural enemies of pest insects can also be killed by pesticides.

What is bio control?

Biological control is a method of restricting effects of harmful animals, pathogens and plants using other useful organisms, e.g. microorganisms, insects and plants that inhibit the harmful organisms.

How do pesticides affect agriculture?

Pesticides can contaminate soil, water, turf, and other vegetation. In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants.

What animals affect pesticides?

As vertebrate species, reptiles and amphibians are also at risk of pesticides. Though less is known about the effects of pesticides on reptiles and amphibians, these animals have been known to fall victim to pesticide poisoning. Blue-tongue lizards, for example, often consume rat bait and die of internal bleeding.

How does chemical pollution affect animals?

Pesticides not only harm wild animals through long-term exposure via the food web; direct exposure also kills wild animals. Pesticides drift, decimating mammal, bird and fish populations. Littering causes the deaths of many wild animals. Toxic trash can be fatal.

How do pesticides affect aquatic plants and animals?

Pesticides can reduce the availability of plants and insects that serve as habitat and food for fish and other aquatic animals. Insect-eating fish can lose a portion of their food supply when pesticides are applied. ... The shallow, weedy nursery areas for many fish species provide abundant food and shelter for young fish.

How do pesticides help animals?

Pesticides are used on pets and livestock to get rid of fleas, ticks and mosquitoes. Animals may eat mice and rats that were poisoned by pesticides. Animals may eat pesticides that smell attractive, such as a rodent, gopher, or slug baits.

What was the effect of the pesticide on insect predator species diversity?

Both insecticides reduced zooplankton diversity by eliminating cladocerans but not copepods (the latter increased in abundance). The insecticides also reduced the diversity and biomass of predatory insects and had an apparent indirect positive effect on several species of tadpoles, but had no effect on snails.

How are pesticides harming bird populations?

These pesticides, called neonicotinoids or neonics, deter insects as the seeds sprout and as they grow into plants. ... When birds eat the pesticide-coated seeds or insects that have pollinated neonicotinoid-treated plants, the chemicals can harm bird development. Over time, they decrease birds' abilities to reproduce.

Who is invented DDT?

DDT has humble origins for a chemical that would eventually reach much of the world. First discovered in 1873 by a German chemistry student named Othmar Zeidler, the compound did not receive serious attention until a 37-year-old chemist named Paul Herman Muller synthesized it again in 1936.

How do pesticides affect an ecosystem?

The main environmental concerns related to pesticides are soil, water or air pollution and damage to non-target organisms including plants, birds, wildlife, fish and crops. ... However, the most beneficial action a grower can take regarding the pesticides they use is to only use pesticides according to label directions.

How many animals have died from pesticides?

The U.S. Fish and Wildlife Service estimates that an estimated 67 million birds die from pesticide poisoning each year and more than 600 million are exposed.