Leatherbacks are found in tropical and temperate marine waters all over the world. They live off both the east and west coasts of the United States, and also in Puerto Rico, the Virgin Islands, and Hawaii.
What climate does a sea turtle live in?
Green sea turtles are found around the world in warm subtropical and tropical ocean waters, and nesting occurs in over 80 countries. There are populations with different colorings and markings in the Atlantic, Indian, and Pacific Oceans.
What do baby turtle eat?
When they are babies, they mostly eat meat because they need the protein to keep growing. Types of protein they like to eat include small insects, snails, worms, and fish. When they get bigger, they can start eating more and more plant-like substances.
What does k mean in biology?
K-selected species, also called K-strategist, species whose populations fluctuate at or near the carrying capacity (K) of the environment in which they reside. Such species make up one of the two generalized life-history strategies posited by American ecologist Robert MacArthur and American biologist Edward O.
What does r stand for in r species?
r-selection: On one extreme are the species that are highly r-selected. r is for reproduction. Such a species puts only a small investment of resources into each offspring, but produces many such low effort babies. Such species are also generally not very invested in protecting or rearing these young.
What does the r stand for in r-strategists?
r-selected species, also called r-strategist, species whose populations are governed by their biotic potential (maximum reproductive capacity, r). Such species make up one of the two generalized life-history strategies posited by American ecologist Robert MacArthur and American biologist Edward O.
What factors affect sea turtles?
Expert members of the IUCN-SSC Marine Turtle Specialist Group have identified five major threats to sea turtles worldwide: fisheries bycatch, coastal development, pollution and pathogens, direct take, and climate change.
What factors affect the carrying capacity of an ecosystem?
Carrying capacity, or the maximum number of individuals that an environment can sustain over time without destroying or degrading the environment, is determined by a few key factors: food availability, water, and space.
What factors would affect the carrying capacity of turtles?
Carrying capacity is defined as the “maximum population size that an environment can sustain indefinitely.” For most species, there are four variables that factor into calculating carrying capacity: food availability, water supply, living space, and environmental conditions.
What reproductive challenges do female sea turtles face?
Females can lay hundreds of eggs in one nesting season, yet few will yield hatchlings that survive their first year of life. Beyond these significant natural challenges, sea turtles face multiple threats caused by humans, such as bycatch in commercial fishing gear, illegal trade, consumption, and climate change.
What type of reproductive strategy do sea turtles use?
Once a site is chosen, the turtle uses her hind flippers to dig a vase-shaped hole about two feet deep, and then lays her eggs. A nesting female will lay multiple nests per nesting season. Most nesting sea turtle species come ashore at night, alone, and often during high tide.
What would affect the carrying capacity of turtles?
What factors would affect the carrying capacity of turtles? There are two types of limiting factors: Densitydependent factors and density independent factors.
Which of the following factors contribute to limiting the capacity of organisms to reproduce?
While food and water supply, habitat space, and competition with other species are some of the limiting factors affecting the carrying capacity of a given environment, in human populations, other variables such as sanitation, diseases, and medical care are also at play.
Why healthy oceans need sea turtles the importance of sea turtles to marine ecosystems?
As we have shown Sea Turtles play a very important part within Marine ecosystems. Travelling thousands of miles across Oceans, various species of Sea Turtles help maintain healthy sea grass beds, provide important nutrients to nesting dunes and ensure our Coral Reefs remain strong and healthy.
Why are green sea turtles vulnerable to climate change?
Increasing temperatures as a result of climate change means more females are born, disturbing the natural gender ratio. It’s possible that the population of sea turtles could be completely female in the near future. This is of critical concern to the longevity of many marine turtle species.
Why are hawksbill sea turtles becoming extinct?
Like other sea turtles, hawksbills are threatened by the loss of nesting and feeding habitats, excessive egg collection, fishery-related mortality, pollution, and coastal development. However, they are most threatened by wildlife trade.
Why are hawksbill sea turtles critically endangered?
Loss and Degradation of Nesting and Foraging Habitat A major threat to hawksbill turtles is the loss of nesting habitat and coral reefs due to coastal development, rising seas from climate change, and pollution.
Why are leatherback turtles important to the ecosystem?
Leatherback turtles consume large numbers of jellyfish which helps to keep populations of these marine organisms in check. Marine turtles, including leatherbacks, also provide a vital source of income as a draw for ecotourism in coastal communities, especially in the Coral Triangle.
Will any animals survive climate change?
While our research shows some animals are adapting to climate change, many will not. For example, some birds may have to maintain a particular diet which means they cannot change their beak shape. Other animals may simply not be able to evolve in time.
How does pollution affect sea turtles?
Pollutants may cause immediate harm to sea turtles through direct contact or can build up in tissues over time and lead to immunosuppression resulting in disease and death. Degradation of sea turtle habitat from pollution also poses a threat and can occur over large areas.
Are reptiles sensitive to pollution?
Lizards and snakes have been shown to act as indicators of environmental pollution, particularly organochlorines. … Detectable levels of plutonium (239Pu) were reported in the liver and bone tissues of three snake species (Coluber constrictor, Pituophis melanoleucus, C.
Can mice see yellow light?
Normal mice failed to discriminate yellow versus red lights; the genetically altered mice demonstrated their new color vision by choosing the correct panel in 80 percent of the trials. The evolution of color vision has been a topic of intensive study for more than three decades.