Joshua Rabideau 11/10/2016 BIOL 380 – Lab: Monday Black-Capped Chickadee Foraging Habits There are numerous organisms and interactions occurring within any ecosystem. Many times, the interactions between organisms and habitats are based on the energy needs of the organisms. In this experiment, a null hypothesis that the Black-capped Chickadee forages on various trees at random. Upon data analysis of the gathered information, it can be determined that the Black-capped chickadee were not choosing foraging sites at random. The results of a chi square test gave a value of 19,890 which is significantly larger than the 16.812 value needed to void the null hypothesis with six degrees of freedom; the probability that this variation was due to chance is less than .01.
By creating experimental beach scenarios, negative and standard, Karpanty, et al, increased and decreased the amount of surface eggs to compare the availability and sufficiency to refuel Red Knots in the Delaware Bay area. They were able to determine that horseshoe crab eggs were sufficient and that Red Knots were not excluded when aggressive shorebirds also foraged on the experimental beach areas. The feeding times were mainly during the day and until high tide. It was observed that Red Knots foraged in high-density areas and along the wrack line, where horseshoe crab eggs were visible and easily accessible. Once that area was depleted, the Red Knots would move on to other horseshoe crab nesting areas.
The experiment failed to reject the null hypothesis because there was no difference between two groups. The statistical analysis found that there was not a substantial enough difference between the high-density and low-density treatments to support the hypothesis that intraspecific competition would affect height and survivorship (Figures 1 & 2). We found that the low-density and high-density treatments were virtually the same and intraspecific competition did not affect height (t ratio=-2.04, DF=426, p-value= .021). For the survivorship variable, we also found that there was not a noteworthy difference in the results (t-ratio=-5.58, DF=458, p-value Functional Ecology Funct
We compared the level of difficulty for the bird to pick the food up and the amount. I found that the bigger the beak was the harder it was to pick up the food but gained a larger amount. The smaller the beak was the easier it was to pick up the food but gained a smaller
The black-horned tree cricket also known as the Oecanthus nigricornis is native to central North America and is the focal animal for this lab report. The following behaviors were observed on Thursday, September 28, 2017 at approximately 3:00 pm, in a controlled lab (room DV 4072). The study was conducted within a dark room using a red light, this light was used because it is invisible to crickets however, it assists us in visually identifying the cricket. The timer was turned on as soon as we had both the male and the female on the plant. The courtship lasted for 72 minutes, during which we expected to see the eight mating stages consisting of; pre-courtship, courtship, pre-copulatory feeding bouts, copulation attempts, spermatophore transfer,
Chalfoun, Daniel F. Doak, and Leah H. Yandow to test how different climate and habitat changes affect the American Pika (Chalfoun. Doak, and Yandow). The abundance of the Pika was tested by measuring the scat density in two mountain ranges, the Wind river and Bighorn mountain ranges (Chalfoun. Doak, and Yandow). The 43 sites for sampling contained different forage availability and throughout time, nine different climate changes that aligned with summer heat and winter snowpack temperatures (Chalfoun.
Cockatiel-Proofing - Cockatiel Haven - Bird Breeding OntarioSkip to content Menu Available Babies All Babies are hand fed and fully weaned before going to their new homes. All of our Cockatiels are very affectionate, loveable and friendly. They come with a health guarantee and a hatch certificate. I am sorry
In “The Osage Firebird” by Sudipta Bardhan, the author discusses the life and hard work of Maria Tallchief. Betty Marie, best known as Maria Tallchief, always wanted to be a ballerina. Since she was a kid, until she became an adult, her dream was to be a professional dancer. Maria made her dream come true and became a dancer. Body 1:
The potential effects on the environment and ecosystems with the birds ' continued demised were simply ignored. And with that, Alderman allows the chefs to get the last say, concluding the article on a lighter tone about the importance of occasional
Tradeoffs are a frequent occurrence in Nature. They describe the compromise between two optimal but frequently incompatible traits for an organism. Andrea Pomeroy and her team applied this concept of tradeoffs to the western sandpipers, Calidris mauri, of British Columbia Canada, with the trade off of their ability to forage for food against the costs of potential predation. The main idea examined by Pomeroy was to study the spatial usage (The measure of how intensely a site is used for foraging by the sandpipers) at Boundary Bay, to determine how the birds chose their stop over sites during migration based on the tradeoffs between food abundance and predation risks.
It is common for birds to find their way into homes vents. Vents are an ideal place for birds to build nest in order lay eggs and have baby birds. It is a safe high place that most prey are unable to access. Birds commonly get into bathroom vents, and dryer vents. Although a bird in a vent seems harmless it can cause problems for the homeowner.
Reading The Osage Firebird, by Sudipta Barchan, I learned it doesn’t necessarily have to be physical barriers in your way that you have to overcome. This is a story about a courageous young girl who knew that nothing would get in her way to stop her from pursing the profession she loves. In the beginning the author explains how Betty’s career got started and how she became interested in this profession. The text also states things about Betty’s heritage and background.
When fleeing from a predator, animals forfeit the ability to acquire additional resources and reduce their risk of predation (Frid & Dill, 2002). The avoidance of predation and the need to acquire resources to survive creates a tradeoff that animals must balance in order to survive. Flight initiation distance (FID) can be used to determine how animals perceive the risk of predation in their habitat (Stankowich & Blumstein, 2005). Although FID has been used to identify predatory risk assessments in birds, mammals and lizards, it has not yet been used to evaluate risk assessments in urban dwelling pond turtles. Red-eared sliders (Trachemys scripta) flee from a basking site into an aqueous environment when approached by a natural predator and forgo additional time basking in the sun.
In July, GOMA is throwing out one of their most interesting but serious exhibition. This exhibition is strongly outlining the contemporary society value, instead of presenting the artwork in the traditional way, those artist interrupt their own thoughts into some beautiful, some kind of structure that challenge the traditional way of thinking. Throughout the exhibition, it’s showing the ideas of what makes us to from our today’s society. What have we done to the environment and lead us into trouble? Are we still controlling by the societal structure?
Introduction Predation is a biological interaction between two organisms of different species in a community in which one acts as a predator and captures and feeds on the other, the prey. Predator-prey relationships keep animal populations in balance. When prey populations increase more food is available for predators, and they increase in number as well. An increase in predators triggers a decrease in prey populations. As prey populations decrease predator populations soon follow as their food supply diminishes.
