In Trinidad & Tobago, there are two main types of rats that are a cause for concern; The Black Rat and the Brown Rat (common rat). These rodents are among the common pests within residential properties, commercial businesses and industry facilities.
Brown Rat "Rattus Norvegicus"
The brown rat, also known as the ‘common rat’ is a widespread species of common rat. Brown rats usually prefer ground living and burrowing, but are known to climb.
- The brown rat grows up to 40cm in length; its tail is shorter than the combined length of the head and body.
- It weighs between 350-500 grams.
- Its features include: a blunt nose, small ears and a thicker body than the Black Rat.
Common Facts
Lifecycle
- Rats have 7-8 young per litter, and 3-6 litter a year.
- Gestation period is about 3 weeks.
- Rats reach sexual maturity in 10-12 weeks from birth.
Habitat
- The brown rat is a true omnivore and will consume almost anything, but cereals form a substantial part of his diet.
- They will eat around 30g of food daily and drink 60ml.
Black Rat "Rattus rattus"
Black rats are found in coastal areas and many urban environments across Trinidad. A generalist omnivore and serious pest to farmers as it also feeds on agricultural crops.
- The brown rat grows up to 24cm in length. Its tail is longer than the head and body.
- It weighs up to 200 grams.
- Its features include: a pointed nose, large ears and a slender body.
Common Facts
Lifecycle
- Rats have 5-10 young per litter, and 3-6 litter a year.
- Gestation period is about 3 weeks.
- Rats reach sexual maturity in 12-16 weeks from birth.
Habitat
- The black rat is a true omnivore and will consume almost anything, but moist fruits form a substantial part of his diet.
- They will eat around 15g of food daily and drink 15ml.
