Which of the following is associated with long-term parental care? a. few offspring b. many offs

step 1 Birds are an example of type 2 survivorship curve because birds die more or less equally at each

Which of the following is associated with long-term parental...

Key Concepts

Parental Investment

Parental investment refers to the time, energy, and resources that a parent devotes to the survival and development of its offspring. In species with long-term parental care, the investment per offspring is high, meaning that each young individual receives considerable care from the parent, enhancing its chances of survival but typically reducing the number of offspring that can be supported at one time.

Life History Strategy

Life history strategy is a framework that describes how an organism allocates resources to growth, reproduction, and survival over its lifetime. Species with long-term parental care tend to favor strategies that emphasize quality over quantity, producing fewer offspring but investing more resources into each to increase their survival probability.

Trade-offs in Offspring Number and Care

There is an inherent trade-off between the number of offspring one produces and the level of care that can be afforded to each. In systems with long-term parental care, lower fecundity (few offspring) allows parents to allocate more resources to each offspring, ensuring higher survival rates compared to species that produce many offspring with limited care.

Reproductive Strategies: Semelparity vs Iteroparity

Reproductive strategies such as semelparity and iteroparity address how often an organism reproduces. Semelparity, where reproduction happens only once in a lifetime, often involves a strategy of maximizing offspring number in a single event, while iteroparity involves multiple reproductive events over a lifetime. Long-term parental care is more commonly associated with iteroparous species that invest in each reproductive event, thereby improving the survival chances of each offspring.

Fecundity

Fecundity describes the potential reproductive capacity of an organism, or the number of offspring produced. In the context of long-term parental care, species typically exhibit reduced fecundity because they invest more energy and resources into ensuring each offspring’s survival, rather than producing a large number of offspring with minimal care.

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