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61 Cards in this Set
- Front
- Back
Recruitment |
Taking a new speicies into an area intentionaly |
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Habitat |
Environment where organisms live, Biotic and Abiotic |
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Food use and components |
growth, maintenance, energy of metabolism |
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Measures of basal metabolism rate |
thermal neutral zone, measured an empty stomach at rest |
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Endothermy |
internal heat |
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Ectothermy |
External heat |
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poikilothermy |
changes temp to environment |
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homeothem |
constant heat (person) |
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Heterotherm |
Switches to own environment (humming birds/bears) |
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Use of fat |
High Energy, good for storage |
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Use of carbo |
Energy in sugars |
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Use of protiens |
Growth |
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Importance of water |
thermoregulation, metabolism, gestation+egg devel |
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Generalist |
Omnivore. will eat anything |
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specialist |
herbivore, carnivor |
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facultative |
use of what you have |
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obligate |
one food source (cat) |
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Stereotyed |
Narrow and predictive |
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Plastic |
flexable |
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key stratagies for food storage |
toper, migration, broden diet, hoarding, dormancy |
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Intra |
with in same speices |
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Inter |
different speices |
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how do species avoid competition |
Resource Partitioning |
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Cover |
protect against weather and predators |
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4 forms of heat loss |
radiation, evaporated, conduction, convection |
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behavioral thermoregulation |
1)behavioral: basking, migration, nocturnal, shade 2)Physiological: Metabolism, water 3)Morphological: impervious skin, low surface area, spines that slow evaporation |
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Avoid predation |
1)cryptic coloration: object resemblance, camouflage 2)Chemical defense 3)Armor Defense 4)Group Defense |
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types of predation |
1)Ambush 2) lay in wait (least energy) 3)stalking 4) Pursuit |
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popualtion |
group of individual species in a specific area |
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number |
count |
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density |
#/area (all species) |
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**** Rate of Change |
(Birth-Death) + (immigration -emigration) ___________________________________________
N(pop.size) |
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**Fossorial |
Lives under ground |
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**Subniriant |
Lives under the snow |
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birth rate (natality) |
# born at any given time |
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Death rate (mortality) |
# Deaths |
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Age Structure |
# of individual/age class |
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sex ratio |
male vs female |
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recruitment |
addition of new numbers to the group (birth, immigration) |
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Survivorship curves |
Look at graph!!!! |
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Exponential growth |
rapid rise with no leveling out |
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Logistic growth |
rise with leveling out after hitting carrying capacity |
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carrying capacity |
limit of supportable population |
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Mating Systems |
1)manogamy: 1 partner 2)Polygamy: 1 male, many females 3)Polyandry: 1 females, Many males 4)Indiscriminate: many partners |
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R-selected speiceis |
ex. fish |
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K-selected |
Ex. Elephant |
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types of density dependence |
1) external: limited resources, predatation, disease 2)internal: social behavior, reproduction and physiological response Def: a factor whose effect on population |
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Density indipendent |
Forest fire, natural disasters |
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compensatory mortality |
taking a life that was going to die anyway |
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additive mortality |
adding the mortality rate |
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MVP |
minimum viability pop. |
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Human pop |
How many |
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biospher |
climate rate |
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biome |
Large terrestrial region characterized by similar weather, climate, animals, plant life; determined by precipitation, median temp. |
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% of land covered by tropical rainforest |
2% |
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% of biodiversity it has |
50% |
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pioneer stage |
very beginning of new forest after disturbances |
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degradation |
ruining habitats slowly----leading cause of extinction |
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destruction |
gone in total |
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culfirated ecosystem |
making a synthetic ecosystem |
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maximusustained yield |
greatest # of species we can take without disturbing the reproduction |