Term
|
Definition
patterns of resource allocation that have evolved; strategies that increase
fitness.
• Resources of the environment are limited
• Organisms have limited energy, nutrients, time.
• Resource allocation requires tradeoffs |
|
|
Term
|
Definition
| age/size at first reporduction |
|
|
Term
|
Definition
| # of reproduction episodes |
|
|
Term
|
Definition
| one reproductive event then death |
|
|
Term
|
Definition
| repeated reproductive events |
|
|
Term
|
Definition
| # of offspring produced in each episode |
|
|
Term
|
Definition
| amount of energy (time) provided to the young. |
|
|
Term
|
Definition
|
|
Term
|
Definition
| resources to be saved for one large productive event |
|
|
Term
|
Definition
| "bet hedging" production of offspring in more than one season to reduce risk of failure in one season |
|
|
Term
|
Definition
| semelparous- germinate, produce, die within one year |
|
|
Term
|
Definition
| semelparous- germinate and grow vegetatively for a period of more than one year prior to reproduction and death |
|
|
Term
|
Definition
| iteroparous- reproduce more than once before dying |
|
|
Term
| Semelparity: Agaves[image] |
|
Definition
| desert plant, century plant, produce 30ft floweing stalk, drains reserves and die, attracts pollinators(seed dispersers) |
|
|
Term
|
Definition
| eggs hatch in rivers, swim to pacific ocean, remain for 2-5 years, relocate to spawning ground, males have fangs for fighting, females choose successful males, eggs are laid and fish die. |
|
|
Term
|
Definition
| out of 7 eggs, 3.5 chicks survive and leave the nest. if more or less than 7 eggs are added, less than 3.5 chicks survive |
|
|
Term
| How much energy should be provided to parental care? |
|
Definition
| Adult survival decreases with more parental care |
|
|
Term
|
Definition
| don't provide parental care, they lay eggs and abandon them |
|
|
Term
| fish, amphibians, reptiles |
|
Definition
|
|
Term
|
Definition
| give extensive parental care |
|
|
Term
|
Definition
scorpions/spider- carry eggs on their back
social insects- care for young in nest
male seahorse-broods off. in sac
male frogs- protect and carry babies on leg(midwife toad) and vocal sac(Rhinoderma) |
|
|
Term
|
Definition
| long life, slow development, delayed maturity, high parental investment, low reproductive rates per year |
|
|
Term
|
Definition
|
|
Term
|
Definition
| more energy is used for cellular repair and maintenance, allocated energy for reproduction and growth are less |
|
|
