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BIO VOCAV | I

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Termini in questo insieme (41)

  • Gross primary productivity (GPP)

    The total primary production of an ecosystem

    • The rate at which plants, algae, and photosynthetic bacteria capture and convert solar energy into carbon

  • Kinesis

    Change in rate of movement in response to a stimulus

  • K-selection

    Selection for life history traits that are sensitive to population density

  • logistic population growth

    Population growth that levels off as population size approaches carrying capacity

  • Mimicry

    Trying to mimic another organism *trick

  • Batesian mimicry

    Patable or harmless species mimics a harmful model

  • Mulleriam mimicry

    Two or more protected species look like each other

    *Amplification of signal = warning

  • Aggressive mimicry

    Looks like harmless prey (lure)

  • Rewarding mimicry

    Usually male plants mimicking females

  • Mutualism

    (+/+) both organisms benefit

    ex: algae and fungus

  • Net primary productivity

    The gross primary production of an ecosystem minus the energy used by the producers for respiration

    • Remaining energy after primary products use some organic matter

  • *Operant conditioning

    trial and error learning

    • associated behavior with rewarded (+) or punishment (-)

  • Parasitism

    One organism is hurting while the other is benefiting (-/+)

    (parasite-host)

  • Population

    A group of individuals of the same species that live in the same area and interbreed, producing fertile offspring

  • Primary succession

    Occurs in areas where there are originally no organisms present and where no soil has not yet formed

  • R-selection

    Selection for life history traits that maximize reproductive success in uncrowded environments

  • Sign stimulus

    An external sensory cue that triggers a fixed action pattern by an animal

  • Fixed action pattern

    In animal behavior, a sequence unlearned acts that is essentially unchangeable and, once initiated, usually carried to completion

  • Exponential growth

    Ideal conditions- no limits

    change the population (Birth-Death)

    *few populations show this growth

  • *Succession

    Sequence of community changes

    • transition in species composition over time (years-decades)

    • Usually after a disturbance of habitat

  • Producer

    An organism that produces organic compounds from CO2 by harness saying light energy( photosynthesis) or by oxidizing inorganic chemicals

  • *Symbiosis

    An ecological relationship between organisms of two different relationships species that live together indirect and intimate contact

  • Productivity

    the rate at which living organisms generate new organic manner ( biomass) in an ecosystem over a specific period of time

  • *Biological magnifcation

    A process in which retains substance becomes more concentrated at each higher trophic level in a food train

  • Agonistic behavior

    Threating and submissive rituals usually connected to territories

    • Usually males

  • Biomass

    Total massive organic matter compromising a group of organisms in a particular habitat

  • *Carrying capacity

    The maximum population size that can be supported by the available resources ( symbolized as k)

  • Classical conditioning

    (Pavionvian conditing)

    Associate a "neutral" (o) stimules a " significant stimulus" (+)

  • Kin-selection

    Natural selection that favors at altuistic behavior or enhancing the reproductive success of relatives

  • Commensalism

    (+/o)

    One benefits the other. organisms stays neutral

  • Taxis

    Change and direction

    • Automatic movement towards ( positive taxis) or away from ( negative taxis) - stimulus

  • Competitive exclusion

    No two similar species can occupy the same niche at the same time

  • Consumer

    An organism that obtains its energy and nutrients by feeding on other living organisms or organic matter

  • Critical period

    Sensitive phase for optimal impacting

  • Density dependent factors

    Food supply, competition, predators, diseases

    • only large populations

  • Density independent factors

    Abiotic factors big castsortic events

    • all populations

      Abiotic = soil, weather, sunlight, temp., water

  • Domiance hierarchy

    Social group ranking (only in groups)

    • alpha males and females

  • Imprinting

    Learning a specific critical time forming attachment

    • both learning and inheriting components

  • Habituation

    Loss a response to stimulus

    • "cry-wolf" effect

    • learn not to respond to repeated occurrences to stimulus ( lack of strong signal)

  • *Ecological niche

    An organism Niche is it's ecological job

  • * Ecosystem

    All The organisms in a given area as well the abiotic factors with which they interact, one or more communities and the physical environment around them