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What else can I help you with?
Why does osprey contain large amounts of DDT?
DDT concentration is higher in ospreys because they eat the animals that have concentrations of DDT in it. As DDT passes up the food chain it gets more and more concentrated. THis is due to the 10% rule. wiki it.
Did DDT affect song birds?
no!
Why did ddt only affect to carnivores?
Not true. Birds have been affected by DDT and so have fish.
How did DDT not affect Eagles?
It did not improve their 'hatch-rate'.
How has DDT affected raptor populations?
Osprey were most susceptible because they were higher up the food chain. *DDT runoff into streams *Minnows, crayfish, insects consumed some *Small fish ate those creatures, and so got an additive dose of all the DDT they were carrying *Larger fish ate the smaller ones and, again, the DDT load of each smaller fish added to that *Osprey consume large fish. THUS the osprey, as an end predator consumed the most DDT. Factor in that, the higher up the food chain you go, the fewer individuals there are. The DDT made the eggshells fragile, so fewer osprey were hatched. So their numbers were reduced even more in comparison to those organisms that were more abundant to begin with.
Why is DDT harmful to osprey?
Dichlorodiphenyltrichloroethane (DDT) is a pesticide that proved very harmful to the environment. It entered the food chain and even affected humans. It caused bird eggs to become thin shelled and brittle, with many eggs being crushed when the parent bird tried to sit on them in the nest.
What chemicals affect peregrine falcons?
DDT was a large threat, I do not know of any others.
How does banning DDT and PCB's affect birds in the great lakes area?
grade 9 science lol
Why does DDT exist?
DDT is a pesticide.
Is DDT a parasite?
DDT is an insecticide.
What is DDT and what does it have to do with bio magnification?
DDT is dichlorodiphenyltrichlorethane; biomagnification of DDT in some organisms is possible.
What problems affect the osprey?
Here's an answer for you: The Osprey in many countries suffered from problems with DDT during the 1960s and 1970s but with the banning of DDT, it does not seem to be a major problem at the moment (although DDT is still used in countries outside of Europe). But in the future, other pollutants may cause similar problems. Destruction of suitable wetlands and trees that Ospreys can use for building their nests is a concern, at least in some areas. The Osprey prefers old pine trees for nesting in many countries, but the intensification in forest management has lead to the removal of suitable trees. Illegal hunting during migration is probable not a huge problem at the moment but can still occur in some countries (for example on Malta). Disturbance during the incubation and chick rearing period by tourism or forest management can result in the failure of breeding attempts [Mebs & Schmidt 2006]. Egg theft was a huge problem, especially for the recovering population in Scotland (see [Dennis 2008] for details) in the 1970s and 1980s. Today it can still occur but is probably no longer a big problem (which does not mean it should be neglected). Yound Ospreys can get entangled in nylon fishing line or have hooks embedded in their throats [Dennis 2008]. In the future, overfishing along the African cost (mostly by European ships) could dramatically reduce fish stocks there. That would also affect wintering Osprey populations
