Flashcards
Definitions
Cards in this deck (43)
- 1Marine ecologyStudy of interactions between organisms and the biotic and abiotic environments (patterns, distribution, abundance).
- 2ImmersionAct of submerging something in liquid
- 3EmersionProcess of emerging from water after being submerged
- 4NicheRange of environments over which a species is able to live
- 5Life historyTimescale of life events of animals
- 6Inter-specific competitionBetween species
- 7Intra-specific competitionWithin species competitions
- 8Benthic animalsLive in and on surface layer
- 9EpifaunaOn surface
- 10InfaunaLive in sediment
- 11PlankotrophicLarvae can swim and find food
- 12LecithotrophicHave egg yolk to feed on
- 13Direct larvaeEggs hatch into desired environment
- 14Keystone speciesIf removed, there are major ecological impacts for other species
- 15BiogeographyGeographic distribution of plants and animals
- 16Macro-ecologyRelationship between organisms and their environment at large spatial scales
- 17MeiofaunaOrganisms less than 1mm long
- 18PelagicInhabiting open sea
- 19PorosityVolume of pore space in between particles
- 20PermeabilityRate of percolation of water through sediment
- 21Dilatant sandsWhen pressure is applied, sand becomes dry and hard as water is driven out of interstices
- 22Thixotropic sandSands with high clay content become wetter and more easily penetrated when agitated (quick sand)
- 23MudsDo not drain, are saturated with water
- 24Redox discontinuity layerTransition layer between oxygen rich and oxygen poor layers
- 25Bioturbating polychaeteSediment moving worm
- 26BiostabiliserIncreases cohesiveness, smooths surface, forms protective layer over surface
- 27BioturbatorMakes surface rougher, regrade sediment particle structure, reduce sediment strength
- 28EPSExtra cellular Polymeric Substances
- 29EstuaryExtended interface between a marine and freshwater system
- 30LoticFlowing freshwater
- 31EphemeralShort lived
- 32OsmoconformerCan cope with changes
- 33OsmoregulatorExpends energy to maintain internal fluids
- 34EuryhalineTolerates large salinity range
- 35StenohalineTolerates narrow salinity range
- 36SpeciationThe formation of one or more species from an ancestral species
- 37AllopatricWhen 2 or more populations become geographically isolated
- 38PeripatricWhen small groups of individuals break off from the geographic range of the rest of the species
- 39ParapatricResult of colonisations of new habitat or niche
- 40SympatricNo geographic or habitat barrier - due to other changes, i.e. Breeding times
- 41SynapomorphiesCharacteristics shared between MRCA and all IRS defendants
- 42PhylogeographyStudy if historical processes influencing the modern distribution of a species using molecular tools
- 43Phylogeographic breakLocation where 2 or more clades come into contact with each other