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- https://bio.libretexts.org/Courses/Thompson_Rivers_University/Principles_of_Biology_II_OL_ed/04%3A_Ecology/4.02%3A_Population_Ecology/4.2.02%3A_What_is_Population_EcologyEcology is often defined as the study of the distribution and abundance of organisms. Population ecologists study what determines the occurrence and abundance of species in space and time: their geog...Ecology is often defined as the study of the distribution and abundance of organisms. Population ecologists study what determines the occurrence and abundance of species in space and time: their geographic ranges, population sizes and densities, what factors result in them being so rare or common, and why these characteristics change over time.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/11%3A_Behavioral_Ecology/11.03%3A_Optimal_Foraging_TheoryHandling time (h) is the amount of time it takes the predator to handle the food, beginning from the time the predator finds the prey item to the time the prey item is eaten. Thus, the constraints are...Handling time (h) is the amount of time it takes the predator to handle the food, beginning from the time the predator finds the prey item to the time the prey item is eaten. Thus, the constraints are the shape of the curve of diminishing returns and the travel time (the time it takes to make a round trip from the nest to a patch and back).
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_11%3A_Behavioral_Ecology/11.2%3A_Foraging_EcologyStudies using quantitative trait loci (QTL) mapping have associated the following loci with the matched functions; Pln-1 and Pln-4 with onset of foraging age, Pln-1 and 2 with the size of the pollen l...Studies using quantitative trait loci (QTL) mapping have associated the following loci with the matched functions; Pln-1 and Pln-4 with onset of foraging age, Pln-1 and 2 with the size of the pollen loads collected by workers, and Pln-2 and pln-3 were shown to influence the sugar concentration of the nectar collected. Handling time (h) is the amount of time it takes the predator to handle the food, beginning from the time the predator finds the prey item to the time the prey item is eaten.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_17%3A_Symbioses/17.1%3A_ParasitismA perspective on the evolutionary options can be gained by considering four key questions: the effect on the fitness of a parasite's hosts; the number of hosts they have per life stage; whether the ho...A perspective on the evolutionary options can be gained by considering four key questions: the effect on the fitness of a parasite's hosts; the number of hosts they have per life stage; whether the host is prevented from reproducing; and whether the effect depends on intensity (number of parasites per host).
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/11%3A_Behavioral_Ecology/11.02%3A_Foraging_EcologyStudies using quantitative trait loci (QTL) mapping have associated the following loci with the matched functions; Pln-1 and Pln-4 with onset of foraging age, Pln-1 and 2 with the size of the pollen l...Studies using quantitative trait loci (QTL) mapping have associated the following loci with the matched functions; Pln-1 and Pln-4 with onset of foraging age, Pln-1 and 2 with the size of the pollen loads collected by workers, and Pln-2 and pln-3 were shown to influence the sugar concentration of the nectar collected (Figure \(\PageIndex{3}\)).
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_4%3A_Adaptations_to_the_Physical_Environment/4.1%3A_What_is_adaptation[43] If local adaptation is defined simply as a home site advantage of one population (local sources outperform foreign sources at a common site), it can be tested for using common garden experiments,...[43] If local adaptation is defined simply as a home site advantage of one population (local sources outperform foreign sources at a common site), it can be tested for using common garden experiments, where multiple source populations are grown in a common site, as long as one of the source populations is local to that site.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_13%3A_The_Ecology_of_Intraspecific_VariationThe diagrams show that: (A) there is individual variation in the phenotype (personality: heights of the red lines), but that there is no phenotypic plasticity, (B) there is individual variation in the...The diagrams show that: (A) there is individual variation in the phenotype (personality: heights of the red lines), but that there is no phenotypic plasticity, (B) there is individual variation in the phenotype (personality: heights of the red lines), there is population-level phenotypic plasticity (slopes of the red lines are non-zero), but individuals do not differ in their response to the environment (slopes of the red lines are equal), and (C) there is individual variation in the phenotype …
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/13%3A_The_Ecology_of_Intraspecific_VariationThe diagrams show that: (A) there is individual variation in the phenotype (personality: heights of the red lines), but that there is no phenotypic plasticity, (B) there is individual variation in the...The diagrams show that: (A) there is individual variation in the phenotype (personality: heights of the red lines), but that there is no phenotypic plasticity, (B) there is individual variation in the phenotype (personality: heights of the red lines), there is population-level phenotypic plasticity (slopes of the red lines are non-zero), but individuals do not differ in their response to the environment (slopes of the red lines are equal), and (C) there is individual variation in the phenotype …
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/04%3A_Adaptations_to_the_Physical_Environment/4.01%3A_What_is_adaptationAn adaptation is a heritable trait that has evolved through natural selection. Adaptation is closely related to biological fitness, which governs the rate of evolution as measured by change in gene f...An adaptation is a heritable trait that has evolved through natural selection. Adaptation is closely related to biological fitness, which governs the rate of evolution as measured by change in gene frequencies. Often, two or more species co-adapt and co-evolve as they develop adaptations that interlock with those of the other species, such as with flowering plants and pollinating insects.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/4.2%3A_Population_Ecology/4.2.02%3A_What_is_Population_EcologyEcology is often defined as the study of the distribution and abundance of organisms. Population ecologists study what determines the occurrence and abundance of species in space and time: their geog...Ecology is often defined as the study of the distribution and abundance of organisms. Population ecologists study what determines the occurrence and abundance of species in space and time: their geographic ranges, population sizes and densities, what factors result in them being so rare or common, and why these characteristics change over time.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/16%3A_Antagonistic_Interactions/16.04%3A_ParasitismA perspective on the evolutionary options can be gained by considering four key questions: the effect on the fitness of a parasite's hosts; the number of hosts they have per life stage; whether the ho...A perspective on the evolutionary options can be gained by considering four key questions: the effect on the fitness of a parasite's hosts; the number of hosts they have per life stage; whether the host is prevented from reproducing; and whether the effect depends on intensity (number of parasites per host).
