California Tiger
Ambystoma tigrinum
Salamander
Acid Deposition- Emissions of sulfur and nitrogen compounds enter a complex atmospheric cycle where it eventually falls in a wet or dry form.
Aestivation- State of animal dormancy
Agriculture- The science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products
Anthropogenic-(chiefly of environmental pollution and pollutants) Originating in human activity.
Appeal- To make an urgent request, normally towards the public or court
Bequest value- Value of satisfaction from preserving a natural environment or a historic environment, in other words natural heritage or cultural heritage for future generations.
Biodiversity- The variety of life in the world or in a particular habitat or ecosystem.
Biome-A large naturally occurring community of flora and fauna occupying a major habitat
Biphasic life cycle- A life cycle involving two phases.
Breeding zone- The location which mating and reproduction of a species take place
Climate change- A change in global or regional climate patterns
Conservation- Preservation, protection, or restoration of the natural environment, natural ecosystems, vegetation, and wildlife.
Critical habitat- A term defined and used in the Endangered Species Act. It is a specific geographic area(s) that contains features essential for the conservation of a threatened or endangered species and that may require special management and protection.
Cultural eutrophication- Acceleration by human activity of the process by which anaerobic bacteria consume oxygen from water as result of a nutrient overload.
Decomposers-An organism, especially a soil bacterium, fungus, or invertebrate, that breaks down organic material
Decomposition- The state or process of rotting; decay
Deforestation- Tranforming a forest into cleared land.
Degrade- Break down or deteriorate
Desiccation- Losing water to the environment; the ecological process of drying out
Designated- (designate) To appoint, or officially assign
DPS- Distinct Population Segment. The smallest division of a taxonomic species permitted to be protected under the U.S. Endangered Species Act
Drought-A prolonged period of abnormally low rainfall; a shortage of water resulting from this
Ecology- The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
Ecologically diverse-The variation in the ecosystems found in a region or the variation in ecosystems over the whole planet.
Ecosystem-A biological community of interacting organisms and their physical environment.
Endangered- (of a species) Seriously at risk of extinction.
Endemic- (of a plant or animal) Native or restricted to a certain country or area.
Enlistment- (enlisted) To secure for a cause
Exploit- To make full, or complete, use of something
Extinction- When an animal is no longer in existence; that has ended or died out
Fire suppression- Control and/or extinguish fires without human intervention
Food chain- A hierarchical series of organisms each dependent on the next as a source of food
Food web- A system of interlocking and interdependent food chains.
Gene Flow- Consists of the movement of alleles among populations
Genetic Bottleneck- Sharp reduction of a population from random environmental events causing shifts in allele frequencies.
Grasslands-A large open area of country covered with grass
Greenhouse Gas- A gas that contributes to the greenhouse effect by absorbing infrared radiation
Groundwater- Water held underground in the soil or in pores and crevices in rock
Habitat fragmentation- The process by which habitat loss results in the division of large, continuous habitats into smaller, more isolated remnants
Habitat- The natural home or environment of an animal, plant, or other organism.
Indicator Species- Species which indicates the health of an ecosystem
Intrinsic- Value that the environment and life forms have in their own right, and which is not derived from the human use they can or cannot be put to
Invasive Species- Is a plant, fungus, or animal species that is not native to a specific location (an introduced species), and which has a tendency to spread to a degree believed to cause damage to the environment, human economy or human health.
Invertebrates- An animal lacking a backbone
Lawsuit- A claim or dispute brought to a court of law
Leaf litter- Decomposing but recognizable leaves and other debris forming a layer on top of the soil, especially in forests.
Legislation- A law, often considered collectively
Limiting factors- The environmental factor that is of predominant importance in restricting the size of a population
Livestock- Farm animals regarded as an asset
Metamorphosis- the process of transformation from an immature form to an adult form in two or more distinct stages.
Migrate- (of an animal) Move from one region or habitat to another, especially regularly according to the seasons
Native species- Can be either endemic (found only within a particular region) or indigenous (found both within the region and elsewhere).
Nature Preserve- A tract of land managed so as to preserve its flora, fauna, and physical features.
Net Primary Productivity- The rate which producers use photosynthesis to produce and store chemical energy minus the rate at which they use some of this stored chemical energy through aerobic respiration.
Niche- a position or role taken by a kind of organism within its community
Nonnative species- species that migrate into an ecosystem or are deliberately or accidentely introduced into an ecosystem by humans.
Nutrient cycling- The movement and exchange of organic and inorganic matter back into the production of living matter.
Over-exploitation- Harvesting species from the wild at rates faster than natural populations can recover.
Overpopulation- A function of the number of individuals compared to the relevant resources, such as the water and essential nutrients they need to survive. It can result from an increase in births, a decline in mortality rates, an increase in immigration, or an unsustainable biome and depletion of resources.
Permeable- Allowing liquids or gases to pass through it
Pollution- The presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects
Predator- An animal that naturally preys on others
Preserving- Maintain (something) in its original or existing state
Propagation- The reproduction or spreading of something
R- (select species) Those that place an emphasis on a high growth rate, and, typically exploit less-crowded ecological niches, and produce many offspring, each of which has a relatively low probability of surviving to adulthood
Range- The area where a particular species can be found during its lifetime.
Reproduce- To produce one or more other individuals of (a given kind oforganism) by some process of generation or propagation
Restore- The scientific study supporting the practice of ecological restoration, which is the practice of renewing and restoring degraded, damaged, or destroyed ecosystems and habitats in the environment by active human intervention and action.
Riparian- Of or relating to wetlands adjacent to rivers and streams.
Secondary consumer- Eat primary consumers. They are carnivores (meat-eaters) and omnivores (animals that eat both animals and plants)
Sedimentation- The tendency for particles in suspension to settle out in fluid in which they are entrained and come to rest against barrier.
Terrestrial ecosystem- An ecosystem found only on landforms
Tertiary consumer- A carnivore at the topmost level in a food chain that feeds on other carnivores; an animal that feeds only on secondary consumers
Threatened species- Any species (including animals, plants, fungi, etc.) which are vulnerable to endangerment in the near future
Topsoil erosion- The erosion of the most nutrient rich top layer of soil.
Urbanization- The process where an increasing percentage of a population lives in cities and suburbs
UV Radiation- Is simply one form of energy coming from the sun.
Vernal pools- A seasonal depressional wetland, meaning that is inundated with water during only certain times of the year.
Vegetation- Plants considered collectively, especially those found in a particular area or habitat.
Wetlands- Land consisting of marshes or swamps; saturated land
Wildlife Refugees- A designation for certain protected areas of the United States managed by the United States Fish and Wildlife Service.
Definitions from (G.T Miller, S.E Spoolman, 2015)