Ecosystems by Carol Lozano https://padlet.com/clozano57_4/fk0jehno74pzls3q en-us 2023-05-05 18:03:02 UTC 2023-05-11 14:49:11 UTC hello@padlet.com Components/factors clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2579866635 Organisms and populations of organisms are dependent on their environmental interactions both with living and non-living factors. ]]> 2023-05-05 18:08:00 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2579866635 Population density clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2579867362 A population is a group of organisms belonging to same species that live in a particular area.
Populations can be described based on their size, density, or distribution.
Population density measures the number of individual organisms living in a defined space.
Density-dependent factor Limiting factors that operate more strongly on large populations than on small ones. These include competition for food, water, shelter, mate and space, predation, parasitism, and disease.
Density-independent factors: Limiting factors that occur regardless of how large the population is and reduce the size of all populations in the area in which they occur by the same proportion. Density-independent factors are mostly abiotic (such as weather), human activities (such as. pollution), and natural disasters (such as fires)]]> 2023-05-05 18:08:45 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2579867362 Interactions/Symbiosis clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2579867820 Interactions among organisms:
  • generate stability
  • can facilitate or restrain growth
  • can enhance or limit the size of populations, maintaining  the balance between available resources and those who consume them
  • can change biotic and abiotic characteristics of the environment.
A stable ecosystem is one where 
  • the population numbers of each organism fluctuate at a predictable rate.
  • the supply of resources in the physical environment fluctuates at a predictable rate
  • energy flows through the ecosystem at a fairly constant rate over time



]]> 2023-05-05 18:09:13 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2579867820 Flow of energy clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2579869088 Ecosystems are sustained by the continuous flow of energy.
Disruptions to any physical or biological component of an ecosystem can lead to shifts in all its populations.
Biodiversity describes the variety of species found in Earth's terrestrial and oceanic ecosystems.
The completeness or integrity of an ecosystem's biodiversity is often used as a measure of its health.]]> 2023-05-05 18:10:36 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2579869088 Ecosystems clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2582495365 are complex, interactive systems.
are dynamic in nature
their characteristics can vary over time]]> 2023-05-08 18:11:24 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2582495365 Levels of organization clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2582784980 As with individual organisms, a hierarchical structure exists;
groups of the same organisms (species) form populations, different populations interact to form communities,
communities live within an ecosystem, and all of the ecosystems on Earth make up the biosphere.]]> 2023-05-08 23:49:39 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2582784980 Predation clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2583950022 Interaction between species in which one species (predator) eats the other (prey). This interaction helps regulate the population , causing it to become stable. Fluctuations in predator-prey populations are predictable. At some point the prey population grows so numerous that they are easy to find.]]> 2023-05-09 14:47:53 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2583950022 Competition clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584043743 A relationship that occurs when two or more organisms need the same resource at the same time.
Competition can be among the members of the same or different species and usually occurs with organisms that share the same niche.
An ecological niche refers to the role of an organism in its environment including type of food it eats, how it obtains its food and how it interacts with others.
Competition usually results in a decrease of the population of a species less adapted to compete for a particular resource.

]]> 2023-05-09 15:51:30 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584043743 Symbiotic relationships clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584051103 exist between organisms of two different species that live together in direct contact.]]> 2023-05-09 15:56:08 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584051103 clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584052169 2023-05-09 15:56:55 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584052169 clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584074269 2023-05-09 16:13:18 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584074269 clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584081818 2023-05-09 16:18:31 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584081818 clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584096379 2023-05-09 16:29:36 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584096379 clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584098311 2023-05-09 16:31:11 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584098311 clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584098998 2023-05-09 16:31:42 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584098998 clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584100148 2023-05-09 16:32:31 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584100148 clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584109479 2023-05-09 16:39:31 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584109479 clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584111110 2023-05-09 16:40:42 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2584111110 organisms can be clozano57_4 https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2587336135 2023-05-11 14:48:28 UTC https://padlet.com/clozano57_4/fk0jehno74pzls3q/wish/2587336135