5035908255 | Community | A group of populations of different species living close enough to interact | | 0 |
5035908256 | Interspecific interactions | Interactions with individuals of other species in the community | | 1 |
5035908257 | Interspecific competition | (-/-) interaction that occurs when individuals of different species compete for a resource that limits their growth and survivial | | 2 |
5035908258 | Competitive Exclusion | A slight reproductive advantage (use resources efficiently) of one species will eventually lead to local elimination of the inferior competitor | | 3 |
5035908259 | (Ecological) Niche | The sum of a species' use of the biotic and abiotic resources in its environment (role)
(Space, Food, Location, Breeding) | | 4 |
5035908260 | Relationship between coexistence and niches | Two species CANNOT coexist if they have identical niches, but they CAN coexist if they find significant differences in their niches | | 5 |
5035908261 | Resource partitioning | Differentiation of species that allows similar species to coexist in a community | | 6 |
5035908262 | Fundamental niche | Niche that could be potential occupied by a species | | 7 |
5035908263 | Realized niche | The portion of its niche a species actually occupies | | 8 |
5035908264 | Allopatric | Geographically separate | | 9 |
5035908265 | Sympatric | Geographically overlapping | | 10 |
5035908266 | Character displacement | Characteristics typically diverge more in geographically overlapping regions than in separated regions | | 11 |
5035908267 | Predation | (+/-) Predator/Prey | | 12 |
5035908268 | Predator Senses | Heat-sensing, smell, sight, claws, venom | | 13 |
5035908269 | Prey Protection | Hiding, Fleeing, Herding, Alarm calls | | 14 |
5035908270 | Aposematic Coloration | Warning Coloration/ Effective chemical defense system | | 15 |
5035908271 | Cryptic Coloration | Camouflage | | 16 |
5035908272 | Batesian mimicry | Harmless species can mimic a harmful species | | 17 |
5035908273 | Mullerian mimicry | Two or more harmful species resemble each other, warns off predators | | 18 |
5035908274 | Predator mimicry | Predator poses to be harmless | | 19 |
5035908275 | Herbivory | (+/-) Organism eats parts of plants or algae | | 20 |
5035908276 | Herbivore adaptation | Chemical sensor, smell, specialized teeth, specialized digestion | | 21 |
5035908277 | Plant Defense | Poison, bad taste | | 22 |
5035908278 | Symbiosis | When individuals of two or more species live in direct and intimate contact with one another | | 23 |
5035908279 | Parasitism | (+/-) Parasite organism derives nutrients from host organism, and the host organism is harmed | | 24 |
5035908280 | Endoparasites | Parasites that live in the body of their hosts | | 25 |
5035908281 | Ectoparasites | Parasites that feed on the external surface of a host | | 26 |
5035908282 | Parasite Behvaior | Sometimes require multiple hosts, change behavior of hosts | | 27 |
5035908283 | Mutualism | (+/+) Interspecific interaction that benefits both species | | 28 |
5035908284 | Obligate mutualism | One of the species in the interaction has lost the ability to survive on its own | | 29 |
5035908285 | Facultative Mutualism | Both species can survive alone | | 30 |
5035908286 | Commensalism | (+/0) Interaction that benefits one species but has no effect on the other | | 31 |
5035908287 | Facilitation | Species have positive effects on the survival and reproduction of other species without necessarily in a symbiosis | | 32 |
5035908288 | Species Diversity | Variety of different kinds of organisms that make up a community | | 33 |
5035908289 | Species richness | Number of different species int he communtiy | | 34 |
5035908290 | Relative abundance | The proportion each species represents of all individuals in the community | | 35 |
5035908291 | Shannon diversity | A way to calculate indexes of diversity |  | 36 |
5035908292 | Why is it hard to determine the number and relative abundance of species in a community | Most species in a community are relatively rare, micro, and hard to identify | | 37 |
5035908293 | Biomass | The total mass of all organisms in a habitat | | 38 |
5035908294 | Invasive Species | Organisms that become established outside their native range | | 39 |
5035908295 | Trophic Structure | The feeding relationships between organisms in a community (food energy) | | 40 |
5035908296 | Food Chain | TROPHIC LEVELS:
Producers (Autotrophs)-> Consumers-> Decomposers, shows an interwoven flow of energy |  | 41 |
5035908297 | Food Web | Food Chains linked together, overlapping parts, shows the flow of energy | | 42 |
5035908298 | What is the highest number of links on the typical food web | No more than 5 | | 43 |
5035908299 | Energetic Hypothesis | Aims to explain why food chains are short by saying that the length of a food chain is limited by the inefficiency of energy transfer along the chain | | 44 |
5035908300 | Dominant species | Species in a community that are most abundant- thus play the biggest role (even trees) | | 45 |
5035908301 | Keystone species | Not usually overly abundant, but play a pivotal ecological role for the community | | 46 |
5035908302 | Ecosystem engineers | Species that dramatic alter their environment | | 47 |
5035908303 | Bottom-up model | Unidirectional influence from lower to higher trophic levels
N->V->H->P
N=nutrients
V=plants (vegetation)
H=herbivores
P=predators | | 48 |
5035908304 | Top-down model (trophic cascade) | Suggests that predation controls community organization because predators limit herbivores and so on
N<-V<-H<-P
N=nutrients
V=plants (vegetation)
H=herbivores
P=predators | | 49 |
5035908305 | Biomanipulation | Using the top-down model to improve the environment (purify lakes) | | 50 |
5035908306 | Balance of nature view | Biological Communities are at an equilibrium and interspecific competition determines community composition and stability | | 51 |
5035908307 | Stability | A community's tendency to reach and maintain a relatively constant composition of species | | 52 |
5035908308 | Climax community | A community controlled and kept stable solely by predictable climate | | 53 |
5035908309 | Disturbance | an event such as a storm, fire, flood, drought, or human activity that changes a community by removing organisms or resource availability | | 54 |
5035908310 | Nonequillibrium model | Describes most communities as constantly changing after a disturbance | | 55 |
5035908311 | Intermediate disturbance hypothesis | Moderate levels of disturbance foster greater species diversity than do high or low levels of disturbance | | 56 |
5035908312 | What is the norm for most communities in terms of equillibrium | Nonequillibrium | | 57 |
5035908313 | Ecological succession | Disturbed areas gradually replaced by different species and then replaced by other species and so on | | 58 |
5035908314 | Primary succession | When species first colonize a disturbed area (usually prokaryotes and protists) | | 59 |
5035908315 | Secondary succession | An existing community has been cleared by a disturbance that leaves the soil intact- which then allows the area to return to something similar to its original state | | 60 |
5035908316 | Tropics | Where is plant and animal life generally more abundant compared with the rest of the globe? | | 61 |
5035908317 | Species richness in a community may occur over time as what occurs? | Speciation | | 62 |
5035908318 | Evapotransportation | The evaporation of water from soil and plants | | 63 |
5035908319 | Potential evapotransportation | Measures potential water loss that assumes water is readily available | | 64 |
5035908320 | Species-area curve | Describes patterns of species richness | | 65 |
5035908321 | Species area relationship | S is the number of species found in a habitat, A is the area of the habitat, and z tells you how many more species should be found in a habitat was area increases |  | 66 |
5035908322 | Island equillibrium | It is better to study equillibrium on islands because of their isolation and manageable size | | 67 |
5035908323 | Two factors that determine the number of species on islands | Rate of immigration of new species, rate of extinction of species | | 68 |
5035908324 | Island equilibrium model | Predicts that an equilibrium will be reached when the rate of species immigration equals the rate of extinction | | 69 |
5035908325 | Pathogens | Disease-causing microorganisms, viruses, viroids, or prions | | 70 |
5035908326 | Zoonotic pathogens | Cause 3/4 of emerging human diseases and many of the most devastating diseases-- pathogens transferred to humans from animals | | 71 |
5035908327 | Vector | Organism serves as an intermediate species between an infected animal and a human (lice, ticks, mosquitos) | | 72 |
5035908328 | How much energy is transferred between the links of a food chain? | 10% (Ten Percent) (Energy is lost from one trophic level to the next) | | 73 |
5035908329 | What happens to the other 90% of energy not transferred from trophic levels | Lost as heat, motion, maintaining life | | 74 |
5035908330 | How much energy starts with the autotroph? | 100% (One Hundred Percent) | | 75 |