BIO 330 Discussion 2

Question:- Identify at least 4 different cause that are used by migratory animals to find their way during migration. Then, pick one of the cause and explain how we know that at least one species or organism uses these cues.

forest sites than in forest fragments, whereas there were no significant differences between fragments of different sizes. These results provide further evidence for the effects of habitat size on the phorid-Acromyrmex system in a tropical rain forest, based on the abundance of parasitoids both as adults in the field and as reared immature phorids in the laboratory. Phorid parasitized leafcutter ants were most abundant in areas of continuous forest, and less abundant in the forest fragments. O Phorid flies are important parasitoids of leafcutter ants nd leafcutter ants can be found in Brazil's Southeastern Both phorid flies Atlantic Forest. The study provides evidence that this parasitoid-host interaction between phorid flies and leafcutter ant differs between continuous forest and forest fragments. Phorid flies were just as abundant in forest fragments as they were in continuous forest, but were less successful in parasitizing leafcutter ants.

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What are three aspects of your lifestyle that might di­rectly or indirectly contribute to declines in European honeybee populations and the endangerment of other pollinator species (Core Case Study)?

What does the data suggest? What does anova P = .45 means? Could you explain the above details in this context Context - The study aims to test the role of priority effects in fruit fly communities. I tested whether the timing of one species arriving at a particular site causes any alteration to the environment, making it more or less desirable for a second species to come.

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Question 2 Read the excerpt below regarding research at the University of Guelph: Light Pollution is key 'bringer of insect apocalypse' Light pollution is a significant but overlooked driver of the rapid decline of insect populations. Artificial light at night can affect every aspect of insects' lives...from luring moths to their deaths around bulbs, to spotlighting insect prey for rats and toads, to obscuring the mating signals of fireflies. Widespread declines [in insect populations] threaten to cause a catastrophic collapse of nature's ecosystems. Insects around the world are rapidly declining. Their absence would have devastating consequences for life on this planet. There are thought to be millions of insect species...and about half are nocturnal. Those active in the day may also be disturbed by light at night when they are at rest. The evidence that light pollution has profound and serious impacts on ecosystems is overwhelmingly strong. Light pollution could have significant…

會 事 3 of 6 Base your answers to questlons 14- 16 on the Information below and on your knowledge of blology. Unless actions are taken to slow the decline of domesticated honeybees and augment [increase] their populations with wild bees, many fruits and vegetables may disappear from the food supply, said Claire Kremen, a conservation biologist at Princeton University in New Jersey.. The honeybee decline, which is affecting domesticated and wild bee populations around the world, is mostly the result of diseases spread as a result of mites and other parasites as well as the spraying of crops with pesticides, scientists say. Source: "Bee Declines May Spell End of Some Fruits, Vegetables," National Geographic News, October 5, 2005 14. The decrease in the honeybee population is partly due to A. the use of pesticides B. the use of fertilizers C. a decrease in prey D. a decrease in fruits and vegetables 15. "Diseases spread as a result of mites" would be considered a factor. A. density…

given the life table of bees, please make a survivorship curve like on the example graph. what type of survivor ship curve is the table below?

Question:- Give clear examples of both direct and indirect species interactions.

What are important characteristics of adequate monitoring plans for translocation programs? Select all the correct options.   Select 3 correct answer(s)   Leaving released individuals aside and focusing on monitoring the population as a whole.   Avoid advertising the success of program to local communities so that released individuals are not bothered by curious people.   A long-term plan that involves monitoring the population over many years.   Monitoring the costs of the program so that cost-effective analysis can be made.   Monitoring other ecosystem elements beyond the released species, such as prey and vegetation.

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Below is an image of three warbler species that all play a similar role in their community and occupy a similar habitat. So instead they occupy different niches. Use these images and the information from lecture to explain what has happened to these species and why this change would be necessary.

given the life table of bees, please make a survivorship curve like on the example graph. what type of survivor ship curve is the table below?   i will downvote if u answer with not related answer

CASE STUDY CONNECTION Describe five ecological changes to freshwater communities in the Great Lakes or the Hudson River that have occurred since the invasion of the zebra mussel. Describe one economic impact of the invasion. What is one way to prevent the mussel from spreading to new areas?

Q 1 Please help me Thank you

In this experiment, what is(are) the control, independant and dependent factor(s)?

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Answer in step by step with explanation. Don't use Ai.

Lab 5. Integrated Pest Management (IPM)                      Go to the following website: http://ipm.ucanr.edu and answer the questions bellow:   What is IPM? How does it work? Define: Biological control Cultural controls Mechanical and physical controls Chemical control   Describe IPM for one agricultural pest: https://www2.ipm.ucanr.edu/agriculture/, choose a crop, go to Insects and Mites, and choose one insect or mite, then provide with the following information:   Name the crop Name and describe a pest Describe the pest damage Describe the pest management including: Biological Control Cultural Control Organically Acceptable Methods   Example: http://ipm.ucanr.edu/PMG//r1300611.html Crop Alfalfa Pest Alfalfa Caterpillar   Scientific Name: Colias eurytheme Description of the Pest The yellow or white butterflies of the alfalfa caterpillar lay eggs on the new growth of alfalfa that is less than 6 inches tall. Eggs hatch into green caterpillars in 3 to 7 days. Full-grown…

Question:- A high and undesirable divergence between two subpopulations could be resolved through which management strategy? A)establishing corridors between habitat fragments B) removing the barriers to dispersal C) capturing and translocating individuals every generation D) any of the actions listed here

Below is a short research proposal. Review the proposal.  Identify the research question, weaknesses, and propose changes as appropriate.       Many butterfly species are known to have long migrations, with some species showing spectacular movements of millions of individuals. One of the ancient tropical species is the Monarch butterfly. Thought to have originated in the Mexican and Central American mountains and valleys, it eventually invaded warming northern regions driven by its search for its valuable food source, the milkweed plant. During the falls season, monarchs from Canada and the United States will start their longest journey known as “The Great Monarch Migration” to Mexico. How the Monarch can accomplish the 3000 miles journey is still puzzling.  Your friend, a lepidopterist, wants to develop a proposal to understand how genetics influence Monarch’s ability to sense changing environmental signals aiding them to get to their destinations in the fall. She believes that the…

Question: Describe the competitive exclusion principle using the concept of limiting resources and state at least two mechanisms that enable coexistence between competing species.

1. options: Persist or go extinct 2. options: 0.3334, 1, 0, or 0.6667 3. options: Persist or go extinct  4. options: 0.3334, 1, 0, or 0.6667

Which of the following does NOT describe an externality? A: A flower farm is located in a semi-urban part of town. The flowers attract pollinators that help nearby farms but also provoke allergies for some of the local residents. B: A cranberry farm releases acidic water into a nearby river that is an important habitat for many native species. C: A firm voluntarily adopts a new technology that reduces how much pollution it emits into the air, resulting in cleaner air for everyone. D: An industrial-scale farm uses high amounts of pesticides which reduces the farm’s ability to produce food over the longer term.

Explain parent offspring conflict, the model of weaning conflict, harassment in whitefronted bee eaters and siblicide. Provide examples and interpret data.

Answer true or false 1. Parasitism, once considered a symbiotic relationship, is now considered a form of predation. 2. Dominant species exert less control over the occurrence and distribution of other species. 3. Members of a population engage in intraspecific competition which is a major factor in limiting both fecundity and survivorship.  4. Dominant species are most competitive in exploiting resources  5. Food webs can be simplified by grouping species with similar trophic relationships into broad functional groups

Consider the predator-prey model dN N cN P 6. dT K a + N dP b N P тР. dT a + N Analyze and discuss the effects of the parameter 0 on the occurrence of limit cycles for the above predator-prey model. Explain how resolve the biological control paradox. your results

Which of the following organisms would be most likely to become invasive if introduced to a new habitat? A- A plant that is pollinated by a single species of insect B- A plant that requires a long period of cold weather in order to germinate C- An animal that reaches sexual maturity at 20 years of age D- A fungus that produces millions of spores that disperse on the wind E- An animal that feeds on only one species of plant

In this task, you will assume the role of a wildlife biologist that must decide if reintroduction of cougars into the Eastern US is a feasible mitigation strategy for addressing white-tailed deer overpopulation. You will use scientific information from a variety of sources and what you learn in each learning cycle to support or challenge the reintroduction of cougars to the Eastern United States. Your position on the issue should be based on evidence related to the following factors: impact that the deer population is having on ecosystems • social and economic costs of the overpopulation of deer on various stakeholders • the habitat requirements of cougars, the availability of natural resources and carrying capacity of areas where they would be introduced • potential cougar impact on biodiversity, including on populations of coyote and white-tailed deer potential social and economic costs or benefits to stakeholders in areas where cougars are introduced

Are there examples of mutualism or parasitism within these species? Explain and classify them into categories of mutualism, parasitism, and none.