Life as a Hunter (yay.) Flashcards
What factors decide the best prey to hunt?
-amount of kcal in prey
-amount of kcal the lion spends hunting this prey (must be less than a certain amount of kcal depending on lion size)
-net energy (Energy available for total number of prey - energy cost to hunt total number of prey)
-# of lionns the need to be fed in a pride
-prey availability
which members are the main hunters for the pride?
lionesses π β¨ππ
extra facts abt them
uses energy even for resting metabolic rate
rests for 90% of the day
1-3 hunting events per day
wth is a resting metabolic rate?????????!!?!??!?
the amount of energy the body needs to function while resting
what was the worst prey to hunt alone??
Meerkats and zebras were the worst prey to hunt on ur own but zebra is is the best with a pride
why is hunting with a group better?
-energy cost split per hunt
-save energy
-easier to defend
requirements of kcal for each pride member type? (APPROXIMATE)
males: 17,500 kcal/day
females: 13,500 kcal/day
Juveniles: 11,500 kcal/day
How can you calculate the kilocalories required by an animal?
Kilocalorie requirement are based on an organismβs body mass, gender, level or activity, and
prey.
β Total energy cost to hunt prey = (number of prey hunted x energy cost per prey)
β Net energy gained = (number of prey hunted x total energy available) - total energy cost to
hunt prey
How did you figure out which prey would provide the optimal amount of energy for each lion?
Net energy gained per animal
How can you determine if hunting solo or in a group is better?
Hunting in a group is better because less energy per lion is spent per and lions can hunt larger and more energy-beneficial prey.
How do you find the mass of food you need of a certain food item to fulfill the kcal requirement of an animal?
Daily need (kcal)/kcal in food item x mass of food
ex. baboon
25 kg/55 lbs
518.4 kcal/day
food item mass: cantaloupe
750 g
kcal in this amount: 255
515.4/255 x 750=1524.7 g to fulfill baboon needs
A female lion weighs 130 kg. To maintain her weight, she must consume 104 kcal/kg of body weight each day to survive. How many kilocalories must she consume each day to maintain her body weight?
13,520
multiply weight by how much weight she has to consumer per day