Ecology of Individuals and Populations

Each one opens on YouTube. The same ▶ badges appear beside the cram points and notes they explain.

• Whole-chapter tour of population ecology using a real recovery storyPopulation Ecology: How We Saved the Bald Eagle: Crash Course Biology #7CrashCourse
• How animals hold body temperature steady: endotherms, ectotherms, heat exchange (54.1)ThermoregulationBozeman Science
• The three dispersion patterns: uniform, random, and clumped (54.2)Population Dispersion: Uniform, Random, ClumpedJK Biology Class
• Second take on spatial distribution, with why clumping is the most common pattern (54.2)Clumped, Random, and Uniform Population DistributionsHeyNowScience
• Life tables, age structure, and how demographers project population growth (54.3)Population Ecology (Life Tables, Age Structure, Population Growth)Professor Dave Explains
• Walkthrough of a cohort life table, column by column: nx, lx, dx, qx (54.3)Intro to Life TablesGregory Fulkerson
• Type I, II, and III survivorship curves and the species that fit each (54.3)AP Environmental Science Unit 3 – Topic 3.3: Survivorship CurvesMr. Chipman - Biology
• Practice reading survivorship graphs on an exam, linked back to r and K strategies (54.3)Decode Survivorship Graphs Before Your AP ExamMs. Parrott Science
• r-selected versus K-selected species and the trade-offs behind each (54.4)r and K selectionBozeman Science
• Second pass on r/K strategies with clutch size and parental investment examples (54.4)r-selected and K-selected population growth strategies | High school biology | Khan AcademyKhan Academy
• Breeding once versus breeding repeatedly: semelparity vs iteroparity (54.4)Life History (Part 2): Iteroparity vs. Semelparity (Extra)scienceclassisgreat
• Exponential growth, biotic potential, and what stops a population from exploding (54.5)Population Ecology: The Texas Mosquito Mystery - Crash Course Ecology #2CrashCourse
• The logistic model and how a population settles at carrying capacity K (54.5)Logistic GrowthBozeman Science
• J-curve versus S-curve side by side, with carrying capacity defined (54.5)Exponential vs Logistic GrowthBaylor Tutoring Center
• How density-dependent and density-independent factors regulate a population (54.6)Population regulation | Ecology | Khan AcademyKhan Academy
• Worked examples separating density-dependent from density-independent limits (54.6)Density Dependent & Density Independent Factors AP Biology 53.5ScienceCreAchins
• Boom-and-bust population cycles read off real lynx and hare data (54.6)Predator prey cycle | Ecology | Khan AcademyKhan Academy
• Human population growth and the demographic transition (54.7)Human Population Growth - Crash Course Ecology #3CrashCourse
• Reading age structure diagrams and population pyramids (54.7)Age Structure Diagram & Population PyramidsEarth Science Classroom
• What an ecological footprint measures and how it relates to carrying capacity (54.7)Ecological FootprintLMSD Science