Concept explainers
Introduction: Song learning is a gradual process in some bird species. It takes place in stages. The newly hatched bird memorizes the song during sensitive period by listening to their parents. On becoming juvenile, they sing a subsong, a tentative note. They listen to this subsong and compare it with the song memorized in the sensitive period. After the two matches, the song is crystallized (finalized) for the entire life.
In Canary (a seed eating songbird), there are multiples sensitive periods for song learning. They incorporate new song also known as “syllables” in their song repertoire every year. In addition to this, their song also becomes flexible between breeding seasons.
Want to see the full answer?
Check out a sample textbook solutionChapter 51 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
- Suggest a probable selective advantage of each of the following traits. a)clear wings of many flying insects b)long tongue of a chameleon c)tendrils of climbing plants d)eel's body shapearrow_forwardWhich of the following structures is unique to mammals? Question 6 options: A) Primitive meninx B) Dura mater C) Pia mater D) Secondary meninxarrow_forwardA male and female gibbon that are similar in size likely demonstrate the lack of sexual dimorphism… A : due to the polygamous social structure in gibbons. B : as the result of unequal access to resources within their environment. C : which is not related to social structure in gibbons. D : due to adaptations related to Allen’s rule. E : due to decreased competition for mates in a monogamous social structure.arrow_forward
- You are a researcher studying birds in an Indonesian rainforest. You have just discovered two new species whose beaks are markedly different, which you have named Laetiphonia orthorhynchus and Laetiphonia rhamphis. In particular, the beaks of L. orthorhynchus are very long, straight and pointed, whereas L. rhamphis have beaks that are quite short, wide and curved downwards. In further studies, you find that the same gene codes for beak shape in both species. In your own words, explain at least two ways that changes in gene expression could result in the differences you observe between these two species. Make sure to be specific in how your explanation applies to the bird species in this example.arrow_forwardHow are bright tail feathers(or loud sounds, or the ability to fight off other suitors) a good indication of general fitness and health of a male sutor? How does this influence the next generation?arrow_forwardFemale spotted sandpipers aggressively court males and, aftermating, leave the clutch of young for the male to incubate. Thissequence may be repeated several times with different males untilno available males remain, forcing the female to incubate her lastclutch. Which of the following terms best describes this behavior?(A) polygyny(B) polyandry(C) promiscuity(D) certainty of paternityarrow_forward
- Identify the type of behavior. 1) 2) Goose. Bees attracted to the smell of the flower and flying towards the scent. _: Once initiated, it will run to completion and this could be observed in nesting behavior of Graylag 3)_ : A genetically program form of learning during developmental stage. Example: sparrow babies learn how to sing exactly at the same frequency as the mother. But if the babies grow isolated from their mother, the singing frequency will be different. 4) A turtle draws its head back into its shell when its shell is touched. After being touched repeatedly, the turtle realizes it is not in danger and no longer hides. This is an example of 5) : A child might stop throwing tantrums after his/her favorite toy is taken away after each tantrums.arrow_forwardWhich of the following is/are exaptations? a) Group of answer choices b) Feathers of birds c) Production of many small offspring in high predation sites. d) mammalian inner ear ossicles (bones) e) Development of a waxy cuticle in dry environments.arrow_forwardFemale mimicry by males occurs in many species. For example, in the Broadley’s flat lizard (Platysaurus broadleyi), some males have the brown coloration of females while others are far more colorful (Whiting et al. 2009). Female mimics do secure some matings in the territories of their larger, more colorful rivals. Why are the bigger males (and those of the marine isopod Paracerceis sculpta) ever fooled into tolerating a female mimic? Why do female mimics occur in any species if the mating success of these individuals is lower than that of the bigger territorial males? Don't write from any online source..arrow_forward
- Describe the mating and breeding processes of sea lions.arrow_forwardWhat is the primary physical feature in which the species of finches differ?arrow_forwardWhy is mating important in external fertilization of animals? A) It ensures survival of offspring B) It ensures sperm dilution C) For pleasure D) It ensures fertilizationarrow_forward
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning