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Table of Contents
Table of Contents
General Introduction
Feeding Behaviors
Nutritional Ecology
Digestive Anatomy
General Introduction
General Introduction
Kangaroo rats were first exposed to science by Dr. C. Hart Merriam in 1903 (Joseph Grinnel 1932). Kangaroo Rats are generally solitary animals with little to no social organization. In addition, they are nocturnal creatures that come out by day from time to time. They have excellent hearing and can even hear a silent sound approaching. They can be found in southwestern United States, Baja California, and northern Mexico. Kangaroo rats live on desert flatlands, creosote flats, and the sandy soils of desert washes.
Habitat
Habitat
The grey areas are the areas in which kangaroo rats tend to live .
Countries: United States, Mexico
Endangered Species
Endangered Species
Kangaroo rats are an endangered species
They are important due to their ability to contribute to the growth of native plants and also minimize the spread of invasive plants.
Reproductive Habits
Reproductive Habits
Kangaroo rats are polygynandrous meaning that both sexes mate with multiple mates.
Mating Season: January-July
Gestation Period: about 29-32 days
Females will produce about 1-2 litters of 1-6 babies every year
🌾 Feeding Behaviors 🌾
What do they eat?
What do they eat?
Their diet consists of mesquite beans and grass seeds.
Occasionally eat small insects and sage leaves.
Their seed diet gives them the ability to survive without ever drinking water!
🌱 Nutritional Ecology 🌱
Continuous Feeder
Continuous Feeder
This means that they eat low quality food stuffs and foods that are scattered in small quantities.
Herbivores
Herbivores
Kangaroo rats do not consume any meat in their diets!
Granivores
Granivores
Kangaroo rats collect seeds in their cheek pouches and store them in holes or nesting burrows.
↑ How Do These Three Categories Connect? ↑
↑ How Do These Three Categories Connect? ↑
Due to the fact that they mainly consume seeds which are scattered, Kangaroo rats have to consistently eat and collect them. Unlike other animals, kangaroo rats don't sweat despite living in desert areas allowing them to retain the water that they gain from their seed diets.
Digestive Anatomy
What Kind of digester are they?
What Kind of digester are they?
The kangaroo rat is a cecal digester meaning that it is a hindgut fermenter.
Their small intestine is shorter than normal, it is only twice the size of the large intestine (Edward E. Midgley 1938).
Due to the curve of their spine, their stomach is pressed very closely to their liver.
*The nutritional ecology of a kangaroo relates to its feeding behavior because their specialized digestive tract allows them to gain water from seeds which is important since they live in the desert where there is little water. This adaption creates an incentive for the kangaroo rat to seek out seeds and store seeds.*
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