Chapter 10, page 204-206, 3 levels of navigational abilities were mentioned and different species can use the different mechanisms available, but can an individual use multiple levels? are species each only known to use 1 level, or do they adjust their choice by what is around them? Chapter 10, page 211, I've heard of using the sun as a compass, but not the stars! With the experiment done on the warblers, did they change their direction because of the shape of a group of stars? Im just a little confused on what they based their movements on. Chapter 10, page 218, it is so cool how birds and sea turtles can use the magnetic compass to migrate. Have there ever been mutations found that do not allow an individual in a species to be able to navigate using different cues? do they follow others in a group or just not survive?
Chapter 10, page 206: The books says only a few species use true navigation. I imagine this ability is costly, but do the animals that have it often find themselves in situations where they would need it? Chapter 10, page 207: I'm confused about the memory snapshot use of landmarks. I understand the concept, but it seems like a hard thing to test. With the ant study mentioned, I'm not sure what part represented evidence of memory snapshots. Was it just the systematic search? Chapter 10, page 213: The idea of using polarized light is really interesting. Can it still be used if it is overcast, or does that block the perception of polarized light?
1. Chapter 10, page 204. Piloting is when an animal finds its goal by using specific landmarks. They talk about how turtles use magnetic cues to guide them during migration. Is piloting inherited or is it learned or both? I'm curious because using magnetic cues seems like something that isn't necessarily learned through social groups but I could be wrong. I'm just curious on how this works.
2. Chapter 10, page 207-210. I thought everything about using the sun as a compass was very interesting. Do animals also use the moon to migrate? I know the moon can trigger things like major spawning events in corals as well as many other process in regards to the tides. Can the moon impact migration in some animals? Especially major lunar events like an eclipse or full moon?
3. Chapter 10. Page 222. The theory of magnetoreception is really interesting in my opinion. I like the idea that animals can view images and light better in certain magnetic conditions and that helps them migrate and process where they need to go. So in this theory if the animal injured its photoreceptors it would no longer be able to see the earth's magnetic fields right? I think this is interesting because if this is correct and an animal who does have injury to their photoreceptors and their magnetoreceptors wouldn't be able to migrate properly.
Chapter 10, Page 205: Do humans use path integration? I have felt like I am very attuned with where north and such are and when I am canoeing I can always tell where I'm going given the shape of the river and the speeds of the water. Or are these visual cues?
Chapter 10, Page 225: I've always wondered why salmon have so many mechanisms (geographical, magnetic, olfaction, etc.) that aid their return to their natal streams for breeding? Couldn't this result in familial members continually breeding with each other? Do they also have mechanisms to recognize familial members?
Chapter 10, Page 229: Could near by boats, specifically the motors giving off electrical vibrations, disrupt the electrical cues that fish receive from their surroundings?
1. Chapter 10, I am a little confused about the different levels of orientation. While I do understand that there is a difference I don't really see what the difference is. To me compass orientation and true navigation sound very similar if not the same. What is the difference between them? 2. Chapter 10, While I understand that some animals use the sun as a compass. I am a bit confused about polarized light and its effect on orientation. As in in the starling example the birds go confused and flew randomly when the sun was blocked. Why is it that some birds do this but others can still navigate a migratory pattern when using the sun even when it is blocked? 3. Chapter 10. I am completely lost on what exactly magnetite-based receptors do/are. Because what happens if an animal uses these and then there is an issue with them, do these animals lose the ability to navigate through to where they are going? Or do they compensate for this loss by using a so called backup way of navigating when magnetite-based receptors have been lost?
P 205: The Path Integration method seems to be a homing-Beacon sense, where say a carrier pigeon learns its home though different triggers and senses. Is this an innate sense of the bird to learn home? Can it be changed or moved , or is it usually a set location that can not wavier? P. 209 Have there ever been studies to remove the sense of navigation? Could it be possible to lose Migrational flight paths by not being able to it after learning? Or is the sense of migration and direction to well ingrained and essential to be lost or forfeited? P 211: I never thought of migration being followed only by the stars. To follow annual migration by stars seems to me, as one of the most intellectually advanced aspect of any animal on earth. What other animals can navigate by the stars or other celestial bodies?
1. Chapter 10, page 206: When discussing true navigation, the author states that the animal does not directly sense its goal and that it does not use familiar landmarks to direct its journey. I was wondering if animals using true navigation can use visual cues but choose not to because they don't need to? Or if animals who use true navigation do not have access to familiar landmarks? Is true navigation more helpful/successful than other forms of navigation?
2. Chapter 10, page 213-214: Although the author does a good job at explaining what polarized light is and what it does, I am still confused as to how it aids with navigation? Do the animals still need other sensory cues in order to utilize polarized light to navigate? Or can they navigate using polarized light alone?
3. Chapter 10: It appears that most of the mechanisms used for navigational purposes involve the sensory system in some way. If a migratory animal were to be born without the ability to see, hear, or smell, would they still be able to learn to navigate? Or would they lose the ability all together?
Chapter 10, page 204-206, 3 levels of navigational abilities were mentioned and different species can use the different mechanisms available, but can an individual use multiple levels? are species each only known to use 1 level, or do they adjust their choice by what is around them?
ReplyDeleteChapter 10, page 211, I've heard of using the sun as a compass, but not the stars! With the experiment done on the warblers, did they change their direction because of the shape of a group of stars? Im just a little confused on what they based their movements on.
Chapter 10, page 218, it is so cool how birds and sea turtles can use the magnetic compass to migrate. Have there ever been mutations found that do not allow an individual in a species to be able to navigate using different cues? do they follow others in a group or just not survive?
Chapter 10, page 206: The books says only a few species use true navigation. I imagine this ability is costly, but do the animals that have it often find themselves in situations where they would need it?
ReplyDeleteChapter 10, page 207: I'm confused about the memory snapshot use of landmarks. I understand the concept, but it seems like a hard thing to test. With the ant study mentioned, I'm not sure what part represented evidence of memory snapshots. Was it just the systematic search?
Chapter 10, page 213: The idea of using polarized light is really interesting. Can it still be used if it is overcast, or does that block the perception of polarized light?
1. Chapter 10, page 204. Piloting is when an animal finds its goal by using specific landmarks. They talk about how turtles use magnetic cues to guide them during migration. Is piloting inherited or is it learned or both? I'm curious because using magnetic cues seems like something that isn't necessarily learned through social groups but I could be wrong. I'm just curious on how this works.
ReplyDelete2. Chapter 10, page 207-210. I thought everything about using the sun as a compass was very interesting. Do animals also use the moon to migrate? I know the moon can trigger things like major spawning events in corals as well as many other process in regards to the tides. Can the moon impact migration in some animals? Especially major lunar events like an eclipse or full moon?
3. Chapter 10. Page 222. The theory of magnetoreception is really interesting in my opinion. I like the idea that animals can view images and light better in certain magnetic conditions and that helps them migrate and process where they need to go. So in this theory if the animal injured its photoreceptors it would no longer be able to see the earth's magnetic fields right? I think this is interesting because if this is correct and an animal who does have injury to their photoreceptors and their magnetoreceptors wouldn't be able to migrate properly.
Chapter 10, Page 205: Do humans use path integration? I have felt like I am very attuned with where north and such are and when I am canoeing I can always tell where I'm going given the shape of the river and the speeds of the water. Or are these visual cues?
ReplyDeleteChapter 10, Page 225: I've always wondered why salmon have so many mechanisms (geographical, magnetic, olfaction, etc.) that aid their return to their natal streams for breeding? Couldn't this result in familial members continually breeding with each other? Do they also have mechanisms to recognize familial members?
Chapter 10, Page 229: Could near by boats, specifically the motors giving off electrical vibrations, disrupt the electrical cues that fish receive from their surroundings?
1. Chapter 10, I am a little confused about the different levels of orientation. While I do understand that there is a difference I don't really see what the difference is. To me compass orientation and true navigation sound very similar if not the same. What is the difference between them?
ReplyDelete2. Chapter 10, While I understand that some animals use the sun as a compass. I am a bit confused about polarized light and its effect on orientation. As in in the starling example the birds go confused and flew randomly when the sun was blocked. Why is it that some birds do this but others can still navigate a migratory pattern when using the sun even when it is blocked?
3. Chapter 10. I am completely lost on what exactly magnetite-based receptors do/are. Because what happens if an animal uses these and then there is an issue with them, do these animals lose the ability to navigate through to where they are going? Or do they compensate for this loss by using a so called backup way of navigating when magnetite-based receptors have been lost?
P 205: The Path Integration method seems to be a homing-Beacon sense, where say a carrier pigeon learns its home though different triggers and senses. Is this an innate sense of the bird to learn home? Can it be changed or moved , or is it usually a set location that can not wavier?
ReplyDeleteP. 209 Have there ever been studies to remove the sense of navigation? Could it be possible to lose Migrational flight paths by not being able to it after learning? Or is the sense of migration and direction to well ingrained and essential to be lost or forfeited?
P 211: I never thought of migration being followed only by the stars. To follow annual migration by stars seems to me, as one of the most intellectually advanced aspect of any animal on earth. What other animals can navigate by the stars or other celestial bodies?
1. Chapter 10, page 206: When discussing true navigation, the author states that the animal does not directly sense its goal and that it does not use familiar landmarks to direct its journey. I was wondering if animals using true navigation can use visual cues but choose not to because they don't need to? Or if animals who use true navigation do not have access to familiar landmarks? Is true navigation more helpful/successful than other forms of navigation?
ReplyDelete2. Chapter 10, page 213-214: Although the author does a good job at explaining what polarized light is and what it does, I am still confused as to how it aids with navigation? Do the animals still need other sensory cues in order to utilize polarized light to navigate? Or can they navigate using polarized light alone?
3. Chapter 10: It appears that most of the mechanisms used for navigational purposes involve the sensory system in some way. If a migratory animal were to be born without the ability to see, hear, or smell, would they still be able to learn to navigate? Or would they lose the ability all together?