Vertebrate
an animal with a backbone (C4)
Tramp species
any species (such as an ant) that is well-adapted to living in close association with humans and easily dispersed around the world as humans ship goods and travel from one place to another (A4, C4)
Terrestrial
ground-dwelling (C4)
Sedimentation
the process of forming or depositing sediment, often caused by soil being eroded and washed into the ocean (C4, M4)
Quantitative
a restraint upon the transport of goods designed to prevent the spread of diseases or pests (C4)
Pipped egg
an egg with a shell that has been broken through in the initial stages of hatching (C4)
Monomorphic
occurring in one shape or type (C4)
Monitoring
long-term studies involving repeated surveys done in the same sites over time (C4, R4)