Ecology Flashcards
The branch of biology that deals with the relationship between organisms and their environment
Ecology
Source of all energy
Sunlight
Constantly interchanged between air, land, and sea. Or between organisms and their environment
Water
Characteristics of Water
High specific heat
Rises with temp. increase
Characteristics of Water
1. High specific heat
Slow to warm up and cool down
Stores high quantities of heat
Characteristics of Water
2. Rises with temp. increase
Heaviest at 4’C (sink)
Chemical cycle in nature
Carbon cycle
Oxygen cycle
Nitrogen cycle
Phosphorus cycle
4 procedures in carbon cycle
Photosynthesis
Respiration
Decay of dead organisms / Transpiration
Burning of fossil fuels
Converted to nitrates for plant use and cannot be utilized directly
Nitrogen cycle
Nitrogen cycle processes
Nitrification
Dentrification
Ammonification
Assimilation
Different types of feeders
Generalist
Specialist
Omnivores (feed on plants and animals)
Generalist Feeders
Acanthaster planci
crown of thorns sea star
Specialist Feeders
- only feed on polyps
Passage of energy from sun in material form
Food Chain
All food chains in a community
Food Web
Another type of food chain where energy decline through the chain occurs and successive members are larger but fewer
Ecological Pyramids
Organisms’ occupation or function in the community
Niche
Place where organisms live
Habitat
Symbiotic Relationships
Commensalism
Mutualism
Parasitism
One gains benefit but the other is neither harmed or gained benefit
Commensalism
Examples of Commensalism
Remora and Shark
Pearl fish and sea cucumber
Orchids on trees
Types of mutualism
Facultative (non-permanent)
Obligate (permanent)
Facultative Mutualism
Cow and Egret
Obligate Mutualism
Animal-protist
Animal-plant (corals and zooxanthellae)
Another name for zooxanthellae
Symbiodinium microadriaticum
Both benfit from each other
Mutualism
One benefits and the other is harmed
Parasitism
Parasitism
Cow and tapeworm
Pinworm and man
Organisms with common characteristics and are reproductively isolated
Species
Scientific name of whale shark
Phinodon typus
Scientific name of Asian moon scallop
Amusium pleuronectes
Dog
Canus familiaris
Organisms of 1 species that occupy a given area
Population
Factors affecting population rate of change
Increase: Birth Immigration Decrease: Death Emigration
Population growth curve
Exponential (unrestricted)
Logistic (restricted)
Maximum no. of individuals that can be sustained in an environment given the available resources
Carrying capacity
Carrying capacity leaves off when:
Population reaches limit of food supply
All suitable habitats are occupied
Parasites and predators multiply greatly
Factor caused by:
Dispersal to other areas
Losses by predation, diseases, etc.
Density-dependent
Factor caused by severe weather
Density-independent
Marine animals habitat
Rocky shores
Coral reefs
Seagrass meadow
Mangrove forests
3 types of reefs
Fringing reef
Barrier reef
Atoll reef