Aresearcher is concerned about a population of bavarian pine voles, a type of endangered rodent. the researcher wants to estimate the genetic diversity of the population by collecting dna samples from some of the pine voles. which sampling method should he use?

a.
quadrat sampling

b.
tagging and wildlife tracking

c.
netting

d.
point counts

Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.