One of the challenges faced by organisms as the climate changes is the changes observed in phenology.  Describe what a change in phenology would be as a result of climate change by giving me an example of it occurring to some organisms (you can make up the organisms in the example).  How would a change in phenology result in a population going extinct (possibly because of a trophic mismatch)?

Suppose you model the interaction between the elephants and acacias using a simple Lotka-Voterra predation model, where N is the number of A. depranolobium trees, and P = number of elephants. part a:  According to the model, what happens in the short term to the elephant and acacia populations if the elephant population is lower than its own isocline, and the acacia tree population is lower than its own isocline? (Choose one.) Group of answer choices Both elephant and acacia populations will increase in size. Both elephant and acacia populations will decrease in size. The elephant population will decrease in size, but the acacia population will increase in size. The elephant population will increase in size, but the acacia population will decrease in size.   part B:    Which of the following would make this simple model more realistic? (Select all that apply.) including A. mellifera trees as a prey for elephants including other herbivore populations (such as giraffes)…

Lean mice (+/+) were reared so they had microbe-free guts. Two groups of lean mice were injected, one with fecal material from obese mice (ob / o * b) and the other with fecal material from other lean mice. Both groups of mice were fed the same food. Their food intake and their gain in body weight were measured. This study is an example of which kind(s) of scientific method used in ecology? Natural history Systems modeling Molecular genetics Experimentation Descriptive observation

from the graph above what you can say what type of survivorship curve this belong too? what characterizes organisms with survivorship curve of this type? and what other organisms have survivor ship curves of this type?