What does the graph tell you about biodiversity between 1600 and 1959? Species Extinctions 60 Mammal species 50 Birds 40 20 1600 ' 1650 ' 1700 ' 1750 ' 1800 1850 -1649 -1699 -1749 -1799 -1849 -1899 -1959 1900 Years biodiversity stays roughly the same not enough information given biodiversity goes up biodiversity goes down

What does the graph tell you about biodiversity between 1600 and 1959? Species Extinctions 60 Mammal species 50 Birds 40 20 1600 ' 1650 ' 1700 ' 1750 ' 1800 1850 -1649 -1699 -1749 -1799 -1849 -1899 -1959 1900 Years biodiversity stays roughly the same not enough information given biodiversity goes up biodiversity goes down

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter25: Human Impacts On The Biosphere

Section: Chapter Questions

Problem 6SQ

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Population _______________ is the number of individuals of a species per unit of habitat area or volume at a given time. (a) dispersion (b) density (c) survivorship (d) age structure (e) demographics
How does extirpation differ from extinction? Group of answer choices Extinction and extirpation are the same thing. Extirpation is the loss of a single population, while extinction is the loss of an entire species. Extinction only happens during a mass extinction. Extinction is the loss of a single population, while extirpation is the loss of an entire species.
The number of species on earth is ________. changed only by a major ecological event constantly changing static
Another ecologist reported a diversity index value of 1.511 in a different community nearby the one you studied. This community is _ diverse than the one you calculated. Please see the attached image to get a better grasp of the question. How to Calculate Biodiversity and Ecology College Biology 2 Advanced Concepts Background Information In the Shannon index, p is the proportion (n/N) of individuals of one particular species found (n) divided by the total number of individuals found (N), ln is the natural log, Σ is the sum of the calculations, and s is the number of species... Species Evenness Species evenness takes into account the number of species and the relative abundance of species in a community. Several indices have been proposed. Two of the commonly used measures of evenness are the Shannon index (H) and the Simpson index (D). Question 2: What is the Shannon diversity index value for this community? What is the species evenness for this community?
The ENDANGERED ANIMAL is CA least tern and its a bird 1. Species Description Visual description, size, reproduction, lifespan, unique behaviors 2. Habitat Needs & Ecological Roles What type of habitat does it require? What does it eat? Who eats it? What role does this species play in its biological community?, etc. 3. Geographic Range/ Population Status Where is this species found geographically? How does its current range compare with where it’s distributed today? How many of these organisms are present in our region? (Or – if you can’t find overall numbers, is there data available on specific populations of this plant/animal?) 4. Reasons for Endangerment Explain the various factors that have led to this species’ current plight. Expand on these points individually, based on your species’ unique story. 5. Domino Effects As we’ve learned, species are not islands unto themselves; they are integrated with many other organisms in trophic relationships, mutualisms, competition, etc.…
How is the Biodiversity Index calculated? Total number of individuals x number of species Total number of individuals - number of species Number of species divided by total number of individuals Number of species + total number of individuals
You are sampling a community of 200 animals in the African savanna. You find that there are 17 wildebeests, a pride of 12 lions, and 20 ostriches, and many other species. What is the relative abundance of ostriches?a. 17b. 12c. 20d. 0.06e. 0.1
Use the logistic equation to estimate population size two generations (Nt+2) after a population was counted as having 1,000 individuals (=N0), with a carrying capacity = 5,000 and r = 0.3 The subject is ecology.
scientists are concerned about bee species dying off. They are pollinators, and if they are gone, many plant species will die off because they cannot reproduce. This will cause a population crash. What will happen to biodiversity and sustainability as a result? Biodiversity will increase and sustainability will decrease Biodiversity will decrease and sustainability will increase Biodiversity will decrease and sustainability will decrease biodiversity will increase and sustainability will increase
Figure 4. This map shows the range of five different bird species in North America based on data collected from 1980 to 1995. For each statement, select TRUE if it is consistent, or FALSE if it is not consistent with the information presented above. If you transplant Bird W to Florida and they survive, then the conditions in Florida are part of their fundamental niche. Question 14 options: True False
Now think about the diversity index you calculated in the diversity and succession labs: a value calculated of 10 in Habitat A and 5 in Habitat B would indicate: Habitat A likely has higher species richness and lower species evenness than Habitat B Habitat A likely has lower species richness and lower species evenness than Habitat B Habitat A likely has higher species richness and higher species evenness than Habitat B Habitat A likely has higher species richness and the same species evenness as Habitat B
Some people think that the species living on earth today will eventually become extinct and be replaced by others and that it is therefore not important to protect biodiversity. How so?. Others think conservation is a critically important undertaking for humans today. How so?