Wolf biologists started estimating the number of wolves in 2000 at 21 wolves in GTNP population. In 2010 they repeated their population surveys and counted 105 animals. What is the doubling time for this population? The Tripling time? What is the current (2022) estimated population?

Start with a small population (n= 5-50) with the # of populations set to 1. Leave all other variables as the default. Select “Island” migration and add a migration rate of 0.1.  Describe what happens at a migration rate of 0.1 (10% of individuals migrate between pops). Now increase the rate of migration to 0.5. What are the effects?

(c) The age structure at census 1 (6/30/2021) is provided below. What is the age structure at census 2 (12/31/2021)? At Census 3 (6/30/2022)? At Census 4 (12/31/2022)?  n(1) = 350 175 90 35 n(2) = n(3) = n(4) =

Describe what happened to the deer population between 1997 and 2007.

13,14

A few plant-eating salamanders manage to float on a log to a large island in the Pacific that did not have any other salamander species previously. The salamanders find the island has abundant plants for food and no predators. On average, a salamander has four offspring per year and lives for one year. Refer to the equation for the logistic growth model if you were modeling salamnder population growth with this logistic growth equation, during the first few years, a) N<K b) N=K c) N>K d) there is no relationship between N and K

On the mystical island of Lumina, researchers discover the elusive Glowfinch, a bird with radiant feathers that glow in the dark. During a mark-recapture study, 50 Glowfinches are marked with luminescent bands and released. In the second capture, 100 Glowfinches are caught, and 20 of them are found to still shimmer brightly. What is the estimated population size (N) of Glowfinches on Lumina? 0160 250 500 130 O100 200 13

What Data is included in a population pyramid, and what is the purpose behind the three groupings?

To create a survivorship curve for the Andean condor: Graph Title: Survivorship Curve for Andean Condor Y-axis: Labeled "Survivorship" with indicators for "Low," "Medium," and "High" levels, ranging from 0 to 100% of the total initial cohort size. X-axis: Labeled "Life Span" with stages "Young" (0-5 years), "Middle-aged" (6-37 years), and "Old" (38-75 years). Key Features of the Curve:   Begins high, reflecting near-total survival from birth to maturity due to low mortality and protected upbringing. remains flat and high through the middle age, indicating sustained low mortality. shows a steep decline in old age, representing increased mortality as individuals reach the latter part of their lifespan.

Explain why the wolf population declined after 2001.