Hypothesis: Is male paternal care influenced by egg color?
- The blue-green egg colors of birds could be a signal, that is sexually selected of female quality, that males use to make decision about parental investment.
Subjects: American robin Turdus migratorius What was done?: Natural robin clutches were replaced with four artificial eggs. The artificial eggs were either all vivid or pale in coloration, keeping close to the extremes of natural coloration of eggs. Three unrelated nestlings were introduced into each experimental nest, once the incubation period was up. When the nestlings were 3, 6, and 9 days old, the parental provisioning behavior was monitored.
Results: It was found that at 3 days old, nestlings had a higher male
Most nesting locations are amongst dense shrubbery and branches of small trees and are built lower to the ground. In order to defend his nest the male sings in a loud, clear whistle from the top of a tree or another high location. Sometimes males will attack their reflection often spending hours charging at what they perceive as unwelcome intruders.
Brood parasitism is a unique behavior performed by some species that tricks another host species into raising its young. This is a fairly common behavior among the Cuculidae family of which 53 of the 136 species perform brood parasitism. My question and what I hope to review within this paper is, what has caused brood parasitism, what has shaped it, and what are the adaptive values of Cuckoo brood parasitism? Within Cuckoo’s, this strange behavior has ultimately been shaped through environmental pressures and has become advantageous. Ecological changes forced Cuckoo’s to change migrational patterns, habitat, range size, and foraging, which lead to brood parasitism. Once brood parasitism arose, a coevolutionary arms race began between the Cuckoo’s and hosts. Due to parasitic egg rejections, Cuckoo eggs that closely resembled host eggs were selected for, leading to higher success rates of the behavior. This gives Cuckoo’s many advantageous’, as there is no longer a need for investing time and energy into raising their young. Brood parasitism also gives Cuckoo’s the advantage of exploiting diverse breeding habitats; reduced diet restraints, and foraging. Ultimately this behavior provides many benefits to Cuckoos and allows them successfully raise young while providing no parental care.
Kookaburra males B bid emails six weeks before the eggs are laid. The phenol has to be very careful with her movement because the eggs are very delicate. Because the eggs are so delicate, that the now only Les 2 to 3 eggs at a time. The
Northern Harriers usually fly slowly and low over the ground, their wings held in a V-shape as they glide. Most males have either one mate or two mates at a time, but some have up to five mates when food is abundant. Each male courts females and advertises his territory by performing sky-dancing displays: undulating, rollercoaster-like flights up to 1,000 feet off the ground, sometimes covering more than half a mile. Although they don’t protect large territories, both males and females vigorously defend the nest itself. Nesting females usually chase away other females, and males chase other males. Females incubate eggs and brood chicks, while males provide most of the food for the females and nestlings. Nest predators include coyotes, feral
It was a hot summer day on July 1, 1947. Mary Judith Jones, a dressmaker and her boyfriend James Robert Wright, a businessman, were enjoying the Canada Day festivities in “Jardins et le Parc Solaire” or “Gardens and Sun Park” in Montreal Quebec. Mary had her hair tied back in a high ponytail, and the bright sun made her silky, red hair shimmer. Her big, green eyes complimented her freckles perfectly. Mary was the only lady wearing a fitted yet sophisticated, moss green dress. Her uniqueness that day made her look like a rare gem. James was a 23 year old businessman making his way into the business world. James’s slick-back hair, brown linen trousers, white shirt with rolled up sleeves, and brown and red striped suspenders made him look truly classy.
Nathaniel Hawthorne was a nineteenth century American writer that was born in Massachusetts with a Puritan Heritage. “Born in Massachusetts on the Fourth of July, 1804, he was the descendant of Puritan worthies and the son of a ship’s captain who died at sea in 1808” (Gollin). Allegories are portrayed in his writings to depict a vivid outlook of his moral themes. Many of his works describe the human conscience and how it deals with guilt. Hawthorne’s works describe his contemplation on sin and guilt. He believed it had an effect on one’s social behavior, as well
Our Life-span Development class observed a child in class for his social, emotional, cognitive, and physical development on October 2nd, 2017. The child observed for this report was almost seven months old at the time of the observation. His name is Maddox and he seems to be a very happy baby and developing at a normal rate. He was observed in classroom 1143 on Dordt College’s campus. His mother gave consent for this observation and both his mother and grandmother were present for the observation and answered questions about his behavior and development outside of what was observed in the classroom.
The callow, forager, gyne and queen in M. pharaonis all have different tasks within the colony and display different behavior. The callow tends to stay inside the nest and tend the brood. The forager tend to leave the nest and forage for food (Mikheyev & Linksvayer, 2015). Gynes are usually stay in the nest until they mature and fly outside the nest to mate and the queens stay inside the nest and lay eggs. All four phenotypes have different needs linked to their specific tasks and locations. For example, foragers would require higher coordination and memory skills than queens would, as they have to navigate around outside the nest, and gynes would require higher visual abilities than callows, for mating purposes.
Behavior Observed: Upon entering the house Abby politely took my jacket and hung it up on a chair. She then ran up the stairs and asked me to come see her dollhouse. She identified every little thing in her dollhouse as she was showing it to me. She showed me the “windows”, “stove”, “soap”, “mantel”,
The subject of morality has been of much interest in many human societies. Many scholars have been involved in this field in helping people to understand the subject even more. Among the much known contributions in this field, the works buy Aristotle, Kant and Mill stands out. There is a connection between the theories of these scholars and these theories can be aligned to a person’s cultural identity as discussed in the subsequent paragraphs that follows below.
I went to the Gracepoint Church’s Fall Fest on Halloween eve. Many interactive booths were prepared for the children, such as ring toss, dance floor, fishing for rubber dolphins, bean bag toss, beading station, and face painting. I hid behind my roommate who was working at the face painting booth that night. The location was perfect because of the high chairs at the booth gave me an easy view of the families in line and the children at the face painting station. I focused this observation on one pair of siblings, whom I will refer to as Jane (5 years old) and John (6 years old). Most children were impatiently waiting in line with their parents, including Jane and John. The two children discussed profusely what painting they wanted on their
For this research project, I chose to interview my very own daughter (Alaina). She is a 7-year-old first grader who lives with her mother full-time. She has one older sister who lives in another state. Alaina is an active and inquisitive young lady. She attends year-round schooling and in her free time, she participates in Tae Kwon Do and basketball.
Subject “Chris” is a 7 year old middle class Caucasian male. Observation is taking place in the child’s home over the course of two separate afternoons. Chris is a friendly and well spoken child who is small for his age. Chris is the youngest child in his family and both observations take place while his siblings are home. In each case one or both parents are absent.
For this child observation, I decided to observe my younger brother Jacob. Jacob is 5 years old, but he insisted that I write that he is almost 6. He is also in kindergarten this year and loving every second of being a loud, rowdy boy. I suppose I am at an advantage in this observation since I have seen the numerous developments in Jacob’s life thus far.
When I was little I always wanted to be a veterinarian, and to accomplish that goal I would need to get into a great university. To get into the school of my choice I would need to get respectable grades throughout high school, and I did. I applied to many great schools across the nation, but the one school I desired to get into was Colorado State University (CSU). CSU is known for their great pre-veterinarian and veterinarian programs that they offer. After much anxiety and anticipation I finally got the letter I was hoping to receive. I was accepted to CSU starting in the fall of 2001. My dad would joke and tease me about becoming a vet, and I took it to heart. He would question why I would want to take