EX2: Pollution

dimethyl sulfide (DMS)

bird species detect this, comes from phytoplankton being eaten by zooplankton

plastics can ____

perforation of digestive tract, infection, obstruction

______ can’t regurgitate

procellariformes, chicks

plastic is covered in ____, which tricks birds to think its food

DMS

____ can metabolize some organochlorines

polar bears

POPs are ____

persistent organic pollutants/ made to last

most toxicants cant be metabolized and sequester in ____

fatty tissue

bioaccumulation

build up of toxins in individual’s body/tissues

biomagnification

toxins concentrate up higher tropic levels

mutagens

chemicals that make polymerase more likely to make errors in gene coding

DDT causes ____

thinning eggshells in pelicans, cormorants, etc

DDT is mainly found in ___

blubber

organochlorines affect _____

courtship behavior, nest building, incubation behavior

PCB are associated with ____

birth defects, bill/limb deformities

blubber is not _____

inert; amount metabolized varies by season, energy demand, sex

80% of PCBs transferred by odontocetes come from

lactation