Term
| Population is characterized by... (2) |
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Definition
| Number of individuals and density |
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Term
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Definition
| Summarizes environmental factor, that influence growth, survival and reproduction of a species |
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| Defined niche with a focus on the effects of the physical environment |
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Definition
| Defined niche with a focus on abiotic and biotic factors |
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Definition
| Defined niche as n-dimensional hyper-volume (n equates the number of environmental factors important to survival and reproduction of a species) |
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Term
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Definition
| Hypervolume (possible niche) |
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Term
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Definition
| Includes interactions such as competition from other species AKA the actual niche of the species |
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| The fundamental/possible niche |
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Term
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Definition
| Found a close relationship between climate and distribution of the three largest kangaroos in Australia |
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Term
| Climate often influences species distributions via (4) |
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Definition
| Food production, water supply, habitat, or incidence of parasites, pathogens or competitors |
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Definition
| Found metabolic rates of tiger beetle are higher and preferred temperatures lower than most other species, supports that environment limits species distribution |
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Definition
| Found barnacles were restricted to upper levels while other barnacles were limited to middle and lower levels |
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Term
| Difference between Balanus and Chthalamus (barnacles) |
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Definition
| Balanus is more vulnerable to dessication, limiting it to the lower areas |
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Term
| Why isn't Chthalamus (barnacle) present in lower intertidal zones? |
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Definition
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Definition
| Equal change of being anywhere with uniform distribution of resources |
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Term
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Definition
| Uniformly spaced with exclusive use of areas (individuals avoid one another) |
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Term
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Definition
| Unequal change of being anywhere, usually orientated around a resource or attraction between individuals |
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Term
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Definition
| A group of individuals of a single species inhabiting a specific area |
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Definition
| The total number of individuals or biomass of a species in a specific area |
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Definition
| Studied distribution of tropical bee colonies |
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Definition
| Found that the distribution of desert shrubs changes from clumped to regular as they grow |
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Definition
| Found competitive interactions with neighboring shrubs influence distribution of roots |
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Definition
| Found that North American bird populations were clumped in the winter |
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Term
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Definition
| Found that North American bird populations showed a clumped distribution during breeding season |
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Definition
| Found that woody plants have a clumped distribution along a moisture gradient |
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Definition
| Found that aquatic invertebrates have higher population densities than terrestrial invertebrates of similar size |
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Term
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Definition
| Devised classification system for rarity |
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Term
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Definition
| Found that increased prey density led to increased density of predators |
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Definition
| Presented the colonization cycle in which dynamic interplay between downstream and upstream dispersal maintains populations |
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Definition
| Collected Dall sheep skulls to determine high survival among the young |
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Definition
| Looked at age distribution of white oak |
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| Observed finch population fall from 1200 to 180 due to single drought |
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Definition
| Found that fish clutches with small numerous eggs had less allelic variation than populations with fewer and larger eggs |
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Definition
Classified plants into four groups: graminoids, forbs, woody plants and climbers.
Classified six seed dispersal strategies. |
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Term
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Definition
| Found that larger seeds were associated with higher recruitment |
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Definition
| Found that larger seeds produced taller seedlings |
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Definition
| Observed the different energy budgets of vertebrates before and after sexual maturity |
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Term
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Definition
| Found in fish that species with higher mortality show higher relative reproductive rate |
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Definition
| Found in sunfish that when adult survival is lower than juvenile survival natural selection allocates more resources to reproduction |
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Definition
| Developed life history classification system based on Ix, mx, and alpha |
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Term
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Definition
| Removed variables of time and size to compare life histories |
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Term
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Definition
| Determined intraspecific competition was influenced by habit of aggregating, rapid growth and mobile nature of food supply |
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| Came up with the Principle of Competitive Exclusion |
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