ipl-logo

Hybridization Of Human Courtship Behavior Among Anurans

988 Words4 Pages

Amphibians are cold-blooded animals that contain unique structures in their bodies and have engaged in behavioral mechanisms allowing them to survive and reproduce for millions of years. Amphibians skin is extremely thin and possess glands which secrete toxins as a defense mechanism against predators (Daly, 1995). Colour patterns on the skin serves for predator defense, mating, and ultraviolet (UV) light protection (Qvarnström, Rudh 2013). In order to ensure survival and reproduction, their behaviour must compensate for their body structure. Because amphibians are cold blooded and require a constant moist skin, they lay their eggs around bodies of water to maximize survival. Courtship behaviour is initiated with mating calls or through the …show more content…

Therefore, it is very common for anurans to place eggs in water though external fertilization. Male anurans gather around bodies of water during breeding, and engage in either prolonged or explosive breeding (Wells, 1977). Hybridization of different species is prevented due to distinct mating calls and pheromones which anurans of the same species can detect (Wells, 1977). Prolonged breeding consists of males often waiting in a fixed position to attract females and lasts longer (more than a month) than explosive breeding (days to a few weeks). Prolonged breeding is territorial and therefore males battle for specific mating areas by engaging in competition. Explosive breeding usually contains high density of anurans in a specific area (usually aquatic). This causes males to engage in a “scramble competition”, where the goal is to engage in amplexus from one anuran (regardless of gender) to the next until a perfect “fit” is made with the females (Wells, …show more content…

Their thin glandular skin secretes toxins against predators to increase survival. Colour patterns allowed amphibians to be concealed within the environment to prevent predation, and to select potential mates (Qvarnström, Rudh 2013). Melanin rich pigment found in eggs and larvae helped to prevent UV-B damage (Qvarnström, Rudh 2013). Breeding is often signaled by chemical cues (pheromones) and mating calls. Breeding time can be rapid and last for days to a few weeks (explosive breeding) or last longer than a month (prolonged breeding) (Wells,

Show More
Related

Isopods Vs Pillbugs

1003 Words | 5 Pages

This indicates that we are unable to show a statistical difference between Isopods preferring the syrup environment over the water environment. Introduction:

Read More

Zo 222 Week 2 Research Assignment

1073 Words | 5 Pages

May to June is their preferred mating season. Whilst (Schlitter, 2015) states that they prefer autumn and summer seasons for mating. Male pangolins use urine to attract the female pangolin the urine a strong smell which the females can locate using its good sense of smell, though it does not occur frequently in the wild, two male pangolins within the same area may fight over a female in the mating season. Mating period generally lasts for three to five days. Female pangolins have two to five oestrous cycles during the mating season, and each will last for 11-26 days, until pregnancy (Cen et al. 2010).

Read More

Summary Of The Sixth Extinction By Elizabeth Kolbert

855 Words | 4 Pages

The golden frog was usually seen throughout El Valle and nearby towns the locals begin to notice that they no longer was seeing the frogs around and throughout the towns nearby. The golden frog in bright in color and can blend into the back ground of the rainforest Kolbert describes “ the panama golden frogs are toxic it's been calculated that the poison contained in the skin of just one animal could kill a thousand average size mice hence the do color makes them stand out against the forest floor.(Kolbert p19). Kolbert States Millions of frogs or being found belly up throughout Panama researchers from all over did not have a direct conclusion to why the golden frog were dying all over. Biologist grew alarmed about this species and why the golden frogs has vanished from the

Read More

Pillbug Lab Report

989 Words | 4 Pages

In this experiement, there were two behaviors kinesis, and taxis, our pillbugs showed taxis behavior in all four types of environments. Introduction: Ethology is the

Read More

Wild Mustang Research Paper

1594 Words | 7 Pages

Mares will cycle several times during the breeding season if they do not conceive and become pregnant. The most intense estrus behavior occurs when the mare is most sexually receptive to the stallion. Intense estrus behaviors lasts about three days. A mare in heat may actively seek out and attempt to stay in the vicinity of a stallion. During the peak of estrus, the mare may sniff, lick, or nuzzle the stallion.

Read More

Flatwood Salamander Research Paper

95 Words | 1 Pages

Flatwood Salamanders do not adapt very well to their environment, which is why they are endangered. One adaptation that the salamander has made would be that it uses crayfish burrows to live in. They also have adapted to use camouflage by making themselves grey and black, so that they can hide in shadows, and dark places. They have also learned to breed in isolated ponds without and predatory fish, so that they and their babies do not get eaten. Another adaptation that they have made would be that their eggs only hatch when wetlands

Read More

Largemouth Bass Evolution

705 Words | 3 Pages

(Demers and McKinley, 1996; Sammons and Maceina, 2005) The largemouth bass mating system is polyandrous, meaning the female mates with several males during one breeding season. During the breeding season, each male makes their nest is shallow water. Nests are usually very basic in design. After the male create the nest, they do the act of courtship, and then the female swims to the nest and lay her eggs in it.

Read More

How The Courtship Evolved Into A New System Of Dating

463 Words | 2 Pages

Courtship was viewed by most as being more innocent than how it evolved. She references several etiquette articles and publications at the turn of the century which advised on unspoken rules and politeness expected from both the man and the woman. These practices ranged from how much time the participants spent with each other, how often they would communicate and what would be discussed. Courtship or “calling on someone” was performed out of the public eye and in the family home of the woman so they could be watched and defined rolls could be met. The social rules that were set in place were used as a test for the potential

Read More

Bull Frog Research Paper

188 Words | 1 Pages

The bull frog has a long and fast tongue to catch their prey with. The bull frog is well populated I would say due to how many eggs they lay. The skin type is permeable. The craziest thing I have ever heard is that a bull frog can lay around 20,000 eggs, which is a lot of eggs which all them eggs float together.

Read More

The Daphnia Magna Experiment

388 Words | 2 Pages

This laboratory experiment involving invertebrates is conducted to enable students to investigate Daphnia magna’s responses to external stimuli, therefore developing a better understanding and knowledge of homeostasis that occurs in organisms and the reaction and behavior exhibited by the daphnia magna when varying conditions are exposed to the organism compared to its natural environment conditions (Carter-Edwards et al, 2011). In order to understand the experiment, a foundation of information about the chosen organism such as its natural environment and physiology must be understood. According to Clare (2002) and Ebert (2005), Daphnia magna are small planktonic crustaceans belonging to the subclass Phyllopoda, found in lakes and

Read More

Wild Horse Research Paper

1128 Words | 5 Pages

If more than one stallion wants to mate with the mare, it results in a stallion fight. A stallion usually gives up quickly in the fight. The victor gets to mate with the mare. The mare is ready to give birth to her foal after 11 months during spring.

Read More

Examples Of Greed In The Hobbit

986 Words | 4 Pages

Scarlett Kramer Mrs. Raynor English 10 Honors 18 January 2023 The Downfall of the Selfish Connection with others is seen as the opposite of addiction, for reliance on unhealthy substances tears at the bonds between people. Characters in J.R.R. Tolkien’s The Hobbit, which includes a diverse cast of creatures set in a magical land called Middle-earth, act similarly as they succumb to their desire for ancestral treasure and in doing so, destroy relationships. As Tolkien illustrates the destructive qualities of greed, both alone and in groups, he proves that cooperation counteracts materialistic deeds. Tokien introduces the characters Smaug and Thorin to prove that, in their similarities, greed will only lead to destruction.

Read More

Analysis Of Unready To Wear

918 Words | 4 Pages

Normal people, called the enemy, can not see them and do not get along with amphibians because they do not like that they leave their bodies. “Unready to Wear” is not at all what I thought it would be, but the tale entertained me and made me think about how life would be if this were possible. “Unready to Wear” is a story that I wish were real and is in some parts relatable, but it is also very unrealistic. First, I want to be amphibious.

Read More

Differences Between Mammals And Reptiles

705 Words | 3 Pages

Reptile scales act as a protective layer to help prevent water loss from their bodies. Mammals are warm-blooded animals and reptiles are cold-blooded animals. Mammals are endothermic which means they can produce and control their body heat internally. Reptiles are ectothermic, they use their resources such as the sun to get

Read More

Literature Review On Eutrophication

754 Words | 4 Pages

It is well known that eutrophication occurs when excess nutrients are added to a body of water and primary productivity is increased. However, the scientific paper, Aquatic eutrophication promotes pathogenic infection in amphibians, puts a direct focus on a specific parasite, Ribeiroia ondatra, and seeks to give evidence that the onset of eutrophication is the driving factor allowing the parasite to disrupt amphibian development. The authors set-out with the goal to provide evidence that eutrophication leads to an increase in the number of snails as intermediate hosts for the parasite, while also increasing the snail size and reducing snail mortality; providing more candidates to pass the parasite onto amphibians to inhibit their development. This research, as stated in the paper, looks to identify eutrophication as the factor promoting this pathogenic infection in the amphibians. Although some have tried to pinpoint this already, no evidence prior had been provided to

Read More

More about Hybridization Of Human Courtship Behavior Among Anurans

Related Topics

Open Document