Is the following case study an r-strategists or a K-strategists? Andean condors reach sexual maturity at five to six years. Reproduction is slow; females lay only one or two eggs every other year. Offspring are cared for by both parents for at least one year. Andean condors are long-lived and can survive for seventy to seventy-five years.
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Is the following case study an r-strategists or a K-strategists?
Andean condors reach sexual maturity at five to six years. Reproduction is slow; females lay only one or two eggs every other year. Offspring are cared for by both parents for at least one year. Andean condors are long-lived and can survive for seventy to seventy-five years.
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- Is the following case study an r-strategist or a K-strategist? American toads practice explosive reproduction. During the first warm days in spring, both males and females migrate from forests and converge on ponds. Reproduction is quick, taking only a few days. Females lay hundreds of eggs in jelly-filled sacks along the sides of the pond or stream. As soon as the eggs are laid, males and females abruptly leave the pond. Offspring are left to develop, hatch, and grow on their own, maturing in about three months.Answer the following questions using this information: Bowhead whales can live up to 150 years, reproducing first when they reach 25 years of age, which is when they leave their mother. The survival curve for this whale species is shown below. Indicate which answer is correct about this whale. % alive age in years 150 O They have a type 1 survival curve and show little parental care of offspring. O They have a type 2 survival curve and show strong parental care of offspring. They have a type 1 survival curve and show strong parental care of offspring O They have a type 3 survival curve and little parental care of offspring.King penguins are flightless aquatic birds found primarily in the Southern hemisphere. They live as a large colony and have highly social interactions. King penguins begin reproducing at six years of age and lay one or two eggs per reproductive cycle.Males and females share the incubation duties and raise the chicks together for about 15 months. When the young penguins get older, they form a large group guarded by only a few adult penguins, allowing the parents to forage for food without having to worry about their young. As a population, penguins could be classified as Select one: a. r-selected because only a few adult penguins care for the young penguins b. K-selected because they only lay one or two eggs per reproductive cycle c. K-selected because they live in a large colony, often sharing responsibility for caring for the young penguins d. r-selected because of the relatively long breeding cycle
- In an iteroparous species lifetime fitness is maximized at investment, while in semelparous species level of reproductive an intermediate maximal effort is exerted in a single reproductive event Maximal an intermediate effort is exerted in one of many reproductive events an intermediate minimal effort is exerted in a single reproductive event maximal an intermediate effort is exerted in a single reproductive event an intermediate maximal effort is exerted in one of many reproductive eventsRegarding mating behavior, choose the false statement from the list: Some aspects of courtship behavior may have evolved from agonistic interactions. Courtship interactions ensure that the participating individuals are nonthreatening and of the proper species, sex, and physiological condition for mating. The mating relationship in most mammals is monogamous, to ensure the reproductive success of the pair. Polygamous relationships most often involve a single male and many females, but in some species this is reversed. Salmon swimming against the stream to lay eggs is an example of taxis. tropism. kinesis. cognitive mapping spatial learning Female Apanteles wasps lay their eggs in caterpillars of the genus Pieris. The site of the caterpillar initiates the egg laying behavior. This is an example of a fixed action pattern. problem solving behavior. habituation.…High testosterone is often associated with shorter lifespan in mammals. However, you find a new species of mouse in which males live longer than females under field conditions. Which of the possible explanations below would NOT predict this pattern? Male-male competition often injures the participants. Females suffer costs of reproduction caused by the burden of milk production. Males, but not females, provide territorial guarding that improves the survival of their grandchildren. Females enter menopause and stop reproducing at age five, while males can reproduce until death.
- For most species of turtles, embryos that incubate at lower temperatures typically produce males, whereas those that incubate at higher temperatures produce females. Higher temperatures from global climate change could lead to skewed sex ratios among offspring and a reduction in breeding success as males become fewer in number. What behaviors during the egg-laying season might lead to potential behavioral adaptations that could help maintain an even sex ratio? Pond turtles that nest in more shaded areas around their ponds. Sea turtles that nest during the cooler part of egg-laying season. Sea turtles laying eggs in a communal nest with other sea turtles. Pond turtles that have multiple clutches throughout egg-laying season.A trade-off for having many offspring would be that they would require a large amount of parental care. that they would likely be small in size. that they would have high survivorship. that they would likely be large in size.Which of the following is NOT an assumption of the basic Lotka-Volterra model of predatory-prey dynamics? Prey are the primary food source for the predators There is no immigration or emigration of predators or prey All prey in the population are accessible to predators, e.g. there are no prey refuges Prey population growth can be limited by food and other resources Predators are the main cause of mortality for the prey
- What is a characteristic of Mullerian mimicry? multiple species share the same warning coloration all of the species involved have actual predation defenses only one of the species is actually toxic, the others are harmless Lit always involves some type of camouflageWhich of the following habitat and life history traits would you expect in a species that reproduces sexually, reaches sexual maturity relatively quickly, and provides little parental care? Choose all that apply. A heavy parasite load A predictable environment A low parasite load An unpredictable environment A small number of eggs per reproductive effort A large number of eggs per reproductive effortInfanticide by adult males… Group of answer choices is rare in most primate groups is not resisted by females, including the mother may be a strategy used to maximize an individual’s own reproductive success is performed as a means of intentional population control to limit overpopulation appears to serve no function other than domination of a group by a new alpha male