3. Molecular methods in identification of species, sex and
... • Advantages and disadvantages of promiscuity: ...
... • Advantages and disadvantages of promiscuity: ...
http://cs
... alike female large male more colorful polygynous = one male mates with multiple females promiscuous = both males and females have multiple mates in a given reproductive season monogamous provide care to their offspring often mating systems may vary within species display cooperative breeding share t ...
... alike female large male more colorful polygynous = one male mates with multiple females promiscuous = both males and females have multiple mates in a given reproductive season monogamous provide care to their offspring often mating systems may vary within species display cooperative breeding share t ...
social behaviour
... Protection from physical factors - huddling Protection against predators - “many eyes hypothesis” or group defense Finding and obtaining food - cooperation in hunting Group defense of resources - maintenance of territory Assembling members for locations of mates leks Division of labor among speciali ...
... Protection from physical factors - huddling Protection against predators - “many eyes hypothesis” or group defense Finding and obtaining food - cooperation in hunting Group defense of resources - maintenance of territory Assembling members for locations of mates leks Division of labor among speciali ...
Ecology Exam Practice - Elmwood Park Memorial High School
... c. The sound from the earphone irritates the male mosquitoes, causing them to attempt to sting it. d. The reproductive drive is so strong that when males are deprived of females, they will attempt to mate with anything that has even the slightest female characteristic. e. Through classical condition ...
... c. The sound from the earphone irritates the male mosquitoes, causing them to attempt to sting it. d. The reproductive drive is so strong that when males are deprived of females, they will attempt to mate with anything that has even the slightest female characteristic. e. Through classical condition ...
15 mate choice
... Tungara frog males have a two-part call. The whine is used to identify species. The chuck is used to identify quality of male of the same ...
... Tungara frog males have a two-part call. The whine is used to identify species. The chuck is used to identify quality of male of the same ...
The Cost of Mating
... costs of sexual reproduction are paid. A hypothetical asexual could dispense with all the costs of mating mentioned above, as well as those of meiosis and recombination, while losing nothing in male aid, since there is none to lose. These considerations make the existence of sex all the more paradox ...
... costs of sexual reproduction are paid. A hypothetical asexual could dispense with all the costs of mating mentioned above, as well as those of meiosis and recombination, while losing nothing in male aid, since there is none to lose. These considerations make the existence of sex all the more paradox ...
Common Chuckwalla
... under an acre in size that encompass the territories of several females. Common Chuckwallas adopt an extremely flat posture while basking to maximize heat absorption as well as to camouflage from aerial predators. They are primarily herbivorous, feeding on leaves, fruit and flowers with insects as s ...
... under an acre in size that encompass the territories of several females. Common Chuckwallas adopt an extremely flat posture while basking to maximize heat absorption as well as to camouflage from aerial predators. They are primarily herbivorous, feeding on leaves, fruit and flowers with insects as s ...
Adaptive evolution
... In birds, there is a direct relationship between levels of extra-pair paternity and testis mass ...
... In birds, there is a direct relationship between levels of extra-pair paternity and testis mass ...
Chapter 51: Animal Behavior - Biology E
... Spatial learning is the establishment of a memory that reflects the environment’s spatial structure. 22-23. What are two types of associative learning? The ability to associate one environmental feature (such as color) with another (such as taste) is called associative learning. In classical conditi ...
... Spatial learning is the establishment of a memory that reflects the environment’s spatial structure. 22-23. What are two types of associative learning? The ability to associate one environmental feature (such as color) with another (such as taste) is called associative learning. In classical conditi ...
kate&^chris
... • Lots of variation in spines and plating – Low plating and smaller spines selected in freshwater environments ...
... • Lots of variation in spines and plating – Low plating and smaller spines selected in freshwater environments ...
Natural Selection and Evolution
... the teacher. The idea is to allow students to perform a couple seasons with only sexual selection first. In this way, they can see the results of one trait being dominant and occurring more often in the offspring. Then, different selection pressures can be added (a new predator or disease that preys ...
... the teacher. The idea is to allow students to perform a couple seasons with only sexual selection first. In this way, they can see the results of one trait being dominant and occurring more often in the offspring. Then, different selection pressures can be added (a new predator or disease that preys ...
Species Related Terms and Concepts
... Interspecific Competition, Predation, Parasitism, Mutualism, Commensalism, Interference Competition, Exploitation Competition, Competitive Exclusion, Resource Partitioning, Realized Niche, Fundamental Niche, Predator-Prey Relationship (in food chain or web arrows go towards higher trophic level) ...
... Interspecific Competition, Predation, Parasitism, Mutualism, Commensalism, Interference Competition, Exploitation Competition, Competitive Exclusion, Resource Partitioning, Realized Niche, Fundamental Niche, Predator-Prey Relationship (in food chain or web arrows go towards higher trophic level) ...
Chapter 6 Primate Behavior
... polyandry occur, males do not participate in rearing offspring. Monkeys raised without a mother were not able to form lasting affectional ties. The mother-infant relationship is often maintained throughout life. ...
... polyandry occur, males do not participate in rearing offspring. Monkeys raised without a mother were not able to form lasting affectional ties. The mother-infant relationship is often maintained throughout life. ...
Behavioral Adaptations for Survival Chapter 5
... be benefits to the behavior that out way the cost. Testable Predictions would be: Mobbing should result in the predator having to spend more effort finding the young. (If you’ve ever watched a cat being mobbed, you know that they often have to keep an eye on the bird(s) and move to avoid getting hi ...
... be benefits to the behavior that out way the cost. Testable Predictions would be: Mobbing should result in the predator having to spend more effort finding the young. (If you’ve ever watched a cat being mobbed, you know that they often have to keep an eye on the bird(s) and move to avoid getting hi ...
Lecture 11 Mating systems 4 slides per page
... a. Energy spent defending or seeking mates comes at the cost of parental care. 4. Environmental factors determine the costs and benefits. For instance, how females are spaced. 5. Ecology constrains the degree to which sexual selection can operate. ...
... a. Energy spent defending or seeking mates comes at the cost of parental care. 4. Environmental factors determine the costs and benefits. For instance, how females are spaced. 5. Ecology constrains the degree to which sexual selection can operate. ...
Biology 312: February 24, 2003
... Example 1: In pipefish species where female can produce two clutches of eggs in the time it takes males to care for a single brood, Males choose large, ornamented females over small, drab ones. (Not true for monogamous pipefish and seahorses; less obvious for males able to place multiple broods into ...
... Example 1: In pipefish species where female can produce two clutches of eggs in the time it takes males to care for a single brood, Males choose large, ornamented females over small, drab ones. (Not true for monogamous pipefish and seahorses; less obvious for males able to place multiple broods into ...
SBI3U 1 of 1 Reproductive Isolating Mechanisms PREZYGOTIC
... features may make two species incompatible. ...
... features may make two species incompatible. ...
Sexual Selection and Mating Patterns
... * Extra pair copulations is a common behavior for monogamous couples ...
... * Extra pair copulations is a common behavior for monogamous couples ...
Giant Prickly Stick / Mcleary`s Specte
... male will often remain mounted on the back of a female for days before and after copulation. This mate guarding has been shown to increase the number of offspring sired by the male in other insects and may perform the same function in this species. The offspring produced by sexual reproduction are b ...
... male will often remain mounted on the back of a female for days before and after copulation. This mate guarding has been shown to increase the number of offspring sired by the male in other insects and may perform the same function in this species. The offspring produced by sexual reproduction are b ...
Territoriality and Mating Systems
... Demography Sexual selection results from the relative investment in reproduction… Males contribute (in most cases) only sperm Females contribute through egg production (more costly than sperm), gestation or incubation, and parental care of neonates. Thus, sexual selection is normally female choice o ...
... Demography Sexual selection results from the relative investment in reproduction… Males contribute (in most cases) only sperm Females contribute through egg production (more costly than sperm), gestation or incubation, and parental care of neonates. Thus, sexual selection is normally female choice o ...
Chapter 8 - Life History Patterns
... mate(s) based on their physical characteristics, because this is an indirect measure of their health OR their (their mate’s) ability to acquire and defend resources (e.g., food and space). ...
... mate(s) based on their physical characteristics, because this is an indirect measure of their health OR their (their mate’s) ability to acquire and defend resources (e.g., food and space). ...
1. Female choice of males that have exaggerated characters has
... #3 from the list of second midterm questions. The second section of the course was about mating and parental care. One of the practice questions invites you to think about their relation. The presence of this question on the exam should come as no surprise. Mating systems generally depend on the fem ...
... #3 from the list of second midterm questions. The second section of the course was about mating and parental care. One of the practice questions invites you to think about their relation. The presence of this question on the exam should come as no surprise. Mating systems generally depend on the fem ...
Behavioral ecology
Behavioral ecology is the study of the evolutionary basis for animal behavior due to ecological pressures. Behavioral ecology emerged from ethology after Niko Tinbergen outlined four questions to address when studying animal behavior which are the proximate causes, ontogeny, survival value, and phylogeny of behavior.If an organism has a trait which provides them with a selective advantage (i.e. has an adaptive significance) in a new environment natural selection will likely favor it. This was originally proposed as the theory of natural selection by Charles Darwin. Adaptive significance therefore refers to the beneficial qualities, in terms of increased survival and reproduction, a trait conveys. Genetic differences in individuals lead to behavioral differences that in turn drive differences in adaptation, reproductive success, and ultimately evolution.Individuals are always in competition with others for limited resources, including food, territories, and mates. Conflict will occur between predators and prey, between rivals for mates, between siblings, mates, and even between parents and their offspring.