Mollusca and Annelida Review Vocabulary: Radula
... Methods of reproduction (monoecious? dioecious, internal, external, or cross fertilization? ) Ecological roles Why would you need a closed circulatory system in order to have a true coelom? Know for Mollusks 3 part body structure & f(x)s of each part unique features of each of 3 classes ...
... Methods of reproduction (monoecious? dioecious, internal, external, or cross fertilization? ) Ecological roles Why would you need a closed circulatory system in order to have a true coelom? Know for Mollusks 3 part body structure & f(x)s of each part unique features of each of 3 classes ...
The role of habitat connectivity and landscape geometry in
... local and regional patterns of species diversity, theory also predicts that the spatial arrangement (geometry) of patches could alter patterns of diversity. If adjacent patches are dissimilar in their local environment, species that favor certain habitat types should have a high probability of emigr ...
... local and regional patterns of species diversity, theory also predicts that the spatial arrangement (geometry) of patches could alter patterns of diversity. If adjacent patches are dissimilar in their local environment, species that favor certain habitat types should have a high probability of emigr ...
2015-01-03_UTRB-call_ver17
... The significance of various threats to UTRB imperiled aquatic species vary across the basin’s three major physiographic provinces (Figure 1). • Oil and Natural Gas ...
... The significance of various threats to UTRB imperiled aquatic species vary across the basin’s three major physiographic provinces (Figure 1). • Oil and Natural Gas ...
ECOLOGY EVENT EXAM Science Olympiad
... Write your answers on the answer sheet. 1. Ecology is best defined as the study of a) the interaction between populations. b) the relationship between birth rate and death rate within a community. c) population increases and decreases in an ecosystem. d) organisms as they interact with other organi ...
... Write your answers on the answer sheet. 1. Ecology is best defined as the study of a) the interaction between populations. b) the relationship between birth rate and death rate within a community. c) population increases and decreases in an ecosystem. d) organisms as they interact with other organi ...
Intertidal Underboulder Communities
... to the biodiversity of a shore. The presence of boulders on a shore may also lead to local modification to wave exposure, current strength and levels of trapped organic matter in the area surrounding the boulders themselves. Altering the physical environment in this way results in an enhancement to ...
... to the biodiversity of a shore. The presence of boulders on a shore may also lead to local modification to wave exposure, current strength and levels of trapped organic matter in the area surrounding the boulders themselves. Altering the physical environment in this way results in an enhancement to ...
Symbiosis: I get by with a little help from my friends*.
... fresh water, heat, protection, etc.) Behavior: When and how it reproduces, mating rituals, hibernation, defense mechanisms, interactions with others ...
... fresh water, heat, protection, etc.) Behavior: When and how it reproduces, mating rituals, hibernation, defense mechanisms, interactions with others ...
Marbled Murrelet Fact Sheet - Center for Biological Diversity
... percent. It directed ODF to increase revenues generated by logging from the northwest state forests by five to fifteen percent within the next decade. The revised plan also removes references to a much-discussed Habitat Conservation Plan for the forests. Like the Elliott, ODF worked on a draft Habit ...
... percent. It directed ODF to increase revenues generated by logging from the northwest state forests by five to fifteen percent within the next decade. The revised plan also removes references to a much-discussed Habitat Conservation Plan for the forests. Like the Elliott, ODF worked on a draft Habit ...
Population Dynamics, Carrying Capacity
... • If the number of individuals added are balanced by those lost then there is zero population growth (ZPG) • Populations vary in their capacity for growth, also known as biotic potential. • Intrinsic rate of growth (r)- is the rate at which a population will grow if it had unlimited resources. • Car ...
... • If the number of individuals added are balanced by those lost then there is zero population growth (ZPG) • Populations vary in their capacity for growth, also known as biotic potential. • Intrinsic rate of growth (r)- is the rate at which a population will grow if it had unlimited resources. • Car ...
Biological populations and communities
... Create a note Biotic potential is “the number of offspring (live births, eggs laid, or seeds or spores set in plants) that a species may produce under ideal conditions.” A species’ biotic potential remains constant despite environmental pressures. Species are not often allowed to reach their biotic ...
... Create a note Biotic potential is “the number of offspring (live births, eggs laid, or seeds or spores set in plants) that a species may produce under ideal conditions.” A species’ biotic potential remains constant despite environmental pressures. Species are not often allowed to reach their biotic ...
Chapters • Lesson 17
... declined, partly because of the increasing costs of raising children. The graph below shows how birth rates and death rates in Europe have changed since 1900 in response to these factors. ...
... declined, partly because of the increasing costs of raising children. The graph below shows how birth rates and death rates in Europe have changed since 1900 in response to these factors. ...
Download chapter 3
... biological information needed to conduct such analyses is not available for the either the MIP or the OIP target taxa. This is especially true for those taxa with extremely small populations in highly degraded and fragmented habitats. In many cases, it is not clear how to define separate populations ...
... biological information needed to conduct such analyses is not available for the either the MIP or the OIP target taxa. This is especially true for those taxa with extremely small populations in highly degraded and fragmented habitats. In many cases, it is not clear how to define separate populations ...
Population Ecology notes
... He used elephants as an example because elephants are one of the slowest breeders on the planet One female will produce 6 young over her 100 yr life span. In a population, this amounts to a growth rate of 2% ...
... He used elephants as an example because elephants are one of the slowest breeders on the planet One female will produce 6 young over her 100 yr life span. In a population, this amounts to a growth rate of 2% ...
Population ecology
... The difference between the birth rate and the death rate is the per capita growth rate ...
... The difference between the birth rate and the death rate is the per capita growth rate ...
Chapter 8.1 Power Point - Tanque Verde Unified School District
... potentials than others. Darwin calculated that it could take 750 years for a pair of elephants to produce 19 million descendants. While bacteria could produce that in a few days or weeks. d. Reproductive potential increases when individuals produce more offspring at a time, reproduce more often, and ...
... potentials than others. Darwin calculated that it could take 750 years for a pair of elephants to produce 19 million descendants. While bacteria could produce that in a few days or weeks. d. Reproductive potential increases when individuals produce more offspring at a time, reproduce more often, and ...
Population Dynamics
... Population characteristics • Population limiting factors – factors that prevent a population from growing indefinitely – Density independent factors – anything that does not depend on the number of a population in a unit area. Usually abiotic – weather, fire, pollution – Density dependent factors – ...
... Population characteristics • Population limiting factors – factors that prevent a population from growing indefinitely – Density independent factors – anything that does not depend on the number of a population in a unit area. Usually abiotic – weather, fire, pollution – Density dependent factors – ...
Insect populations—locusts
... 2. List four characteristics that populations possess that individuals lack. a. density b. age structure c. birth and death rates d. immigration and emigration e. genetic composition 3. Three factors that increase reproductive potential are: a. age at first reproduction b # of eggs per reproduction ...
... 2. List four characteristics that populations possess that individuals lack. a. density b. age structure c. birth and death rates d. immigration and emigration e. genetic composition 3. Three factors that increase reproductive potential are: a. age at first reproduction b # of eggs per reproduction ...
Community structure of snakes in a human
... structuring snake communities by equipping ®ve racers (Coluber constrictor, the largest snake in our study area) with transmitters, and then compared the abundance of smaller snakes within areas of intensive (75% isopleth home range) and limited activity (outside of 75% isopleth) by racers. As expec ...
... structuring snake communities by equipping ®ve racers (Coluber constrictor, the largest snake in our study area) with transmitters, and then compared the abundance of smaller snakes within areas of intensive (75% isopleth home range) and limited activity (outside of 75% isopleth) by racers. As expec ...
Unveiling a mechanism for species decline in fragmented habitats
... we can cite: (i) species that are overly sensitive to habitat size; (ii) a lower genetic variability associated with a smaller number of individuals living in fragments (thus decreasing the fitness of future generations); (iii) reduction of migration owing to hostile interfragment regions (known as ...
... we can cite: (i) species that are overly sensitive to habitat size; (ii) a lower genetic variability associated with a smaller number of individuals living in fragments (thus decreasing the fitness of future generations); (iii) reduction of migration owing to hostile interfragment regions (known as ...
Habitat heterogeneity affects population growth in goshawk Accipiter
... population density should lead to inhabitation of increasingly poor territories and decreasing per capita population growth rate. An alternative mechanism for population regulation in a territorial breeding system is interference competition. However, this would be expected to cause a more even decr ...
... population density should lead to inhabitation of increasingly poor territories and decreasing per capita population growth rate. An alternative mechanism for population regulation in a territorial breeding system is interference competition. However, this would be expected to cause a more even decr ...
INTRODUCTION TO POPULATION ECOLOGY 27
... Limiting factors that affect population growth, such as competition, predation and diseases, are all density-dependent factors. Other limiting factors, such as earthquakes, floods and fires, are all density-independent factors. This means that the effect of these factors is not related to the size o ...
... Limiting factors that affect population growth, such as competition, predation and diseases, are all density-dependent factors. Other limiting factors, such as earthquakes, floods and fires, are all density-independent factors. This means that the effect of these factors is not related to the size o ...
1. populations
... • These factors operate most strongly when a population is large and dense • They do not affect small, scattered populations as greatly • Density-dependent limiting factors include competition, predation, parasitism, and disease ...
... • These factors operate most strongly when a population is large and dense • They do not affect small, scattered populations as greatly • Density-dependent limiting factors include competition, predation, parasitism, and disease ...
Coexistence and invasibility in a two-species competition
... We consider an individual based, spatially explicit model of a community made of two competing species A and B with population NA and NB, respectively. The community lives in a patch made of N¼L2 sites on a square lattice of side L, on which we assume periodic boundary conditions. Each lattice site ...
... We consider an individual based, spatially explicit model of a community made of two competing species A and B with population NA and NB, respectively. The community lives in a patch made of N¼L2 sites on a square lattice of side L, on which we assume periodic boundary conditions. Each lattice site ...
Ecology PowerPoint
... • For example, a bacteria’s habitat may be THE SOIL but its niche may be as a DECOMPOSER • You see, an organism’s niche is its ROLE, its occupation in a certain environment, if you will. An organism’s habitat is THE AREA WHERE AN ORGANISM LIVES or its ADDRESS • The biotic and abiotic factors determi ...
... • For example, a bacteria’s habitat may be THE SOIL but its niche may be as a DECOMPOSER • You see, an organism’s niche is its ROLE, its occupation in a certain environment, if you will. An organism’s habitat is THE AREA WHERE AN ORGANISM LIVES or its ADDRESS • The biotic and abiotic factors determi ...
Unit 8 Lesson 1 - Pembroke Pines Charter Schools > Home
... • Biodiversity is the variation of living organisms. • Organisms are connected to all other organisms because each individual organism has a role to play in the flow of energy and matter. • A biotic factor, such as an organism and how it interacts, is a living part of the environment. ...
... • Biodiversity is the variation of living organisms. • Organisms are connected to all other organisms because each individual organism has a role to play in the flow of energy and matter. • A biotic factor, such as an organism and how it interacts, is a living part of the environment. ...
Biodiversity and Interior Habitats: The Need to Minimize Edge
... a breeze might become more apparent or stronger, and the air would feel warmer and drier. However, if you were to walk the same route on a rainy day, you might not notice any appreciable differences. The changes in microclimate you experienced define a distinct gradient, or “edge effect.” Some plant ...
... a breeze might become more apparent or stronger, and the air would feel warmer and drier. However, if you were to walk the same route on a rainy day, you might not notice any appreciable differences. The changes in microclimate you experienced define a distinct gradient, or “edge effect.” Some plant ...