1 Optimal Public Control of Exotic Species: Preventing the Brown
... a first step in understanding the mechanics of these interrelated processes, we describe the conditions that would create cycles and then focus more precise analytical attention on the case where failed prevention leads to an ineradicable invasive population. Though this model will take as given the ...
... a first step in understanding the mechanics of these interrelated processes, we describe the conditions that would create cycles and then focus more precise analytical attention on the case where failed prevention leads to an ineradicable invasive population. Though this model will take as given the ...
Trophic Level Effects on Species Diversity in Arthropod
... in terrestrial arthropod communities which can be interpreted on a trophic level basis. The range of values reported here for the 3 indices is quite similar to that found by Barrett (1968) in an experimental grain field (data recalculated by Odum 1971). For the general index H(s), little difference ...
... in terrestrial arthropod communities which can be interpreted on a trophic level basis. The range of values reported here for the 3 indices is quite similar to that found by Barrett (1968) in an experimental grain field (data recalculated by Odum 1971). For the general index H(s), little difference ...
New record of anuran predation by Trachops cirrhosus (Mammalia
... (COSTA-PEREIRA et al., 2010; CAMPOS; SOUSA, 2014) and crabs (GUTSCHE; ELEPFANDT, 2007), as well as vertebrates, such as fishes, anurans, reptiles, birds and mammals (TOLEDO, 2005; TOLEDO et al., 2007; WELLS, 2007; SOUSA et al., 2016). Osteocephalus oophagus is a medium-sized arborea ...
... (COSTA-PEREIRA et al., 2010; CAMPOS; SOUSA, 2014) and crabs (GUTSCHE; ELEPFANDT, 2007), as well as vertebrates, such as fishes, anurans, reptiles, birds and mammals (TOLEDO, 2005; TOLEDO et al., 2007; WELLS, 2007; SOUSA et al., 2016). Osteocephalus oophagus is a medium-sized arborea ...
Grassland Biomes - Films On Demand
... ● Understand that in all environments—freshwater, marine, forest, desert, grassland, mountain, and others— organisms with similar needs may compete with one another for resources, including food, space, water, air, and shelter. ● Understand that ecosystems can be reasonably stable over hundreds or t ...
... ● Understand that in all environments—freshwater, marine, forest, desert, grassland, mountain, and others— organisms with similar needs may compete with one another for resources, including food, space, water, air, and shelter. ● Understand that ecosystems can be reasonably stable over hundreds or t ...
The evolution of predator-prey interactions: Theory and evidence
... Because the genetics of such traits are generally largely or completely unknown, most recent models have adopted approaches that are largely phenotypically based. Here, no restrictions are placed on the values of the predation-related traits, and the strength of selection determines the rate of chan ...
... Because the genetics of such traits are generally largely or completely unknown, most recent models have adopted approaches that are largely phenotypically based. Here, no restrictions are placed on the values of the predation-related traits, and the strength of selection determines the rate of chan ...
Learning and Behavior in Reef Fish
... this phylogenetic context, the links between species, and therefore speciation, are associated with changes in group size and feeding behavior. Ecological effects on cheating In the Wismer et al. (2014) study, we see that populations of Labroides on continuous reefs, where clients have options of ma ...
... this phylogenetic context, the links between species, and therefore speciation, are associated with changes in group size and feeding behavior. Ecological effects on cheating In the Wismer et al. (2014) study, we see that populations of Labroides on continuous reefs, where clients have options of ma ...
Chapter 10 - Reserve Design
... Allows prioritization of specific layers, and adjustment of conservation priorities depending on relative importance Provides conservation OPTIONS when planning reserves – not just one site, but differing combinations to achieve the same end This method therefore best fits the criterion of providing ...
... Allows prioritization of specific layers, and adjustment of conservation priorities depending on relative importance Provides conservation OPTIONS when planning reserves – not just one site, but differing combinations to achieve the same end This method therefore best fits the criterion of providing ...
Law of the unspecialized - Department of Ecology and Evolutionary
... benefits of specialization? Is specialization an evolutionary dead end? Theory has long predicted that specialization is favored because of tradeoffs in fitness when organisms utilize different resources. These microevolutionary benefits are thought to be offset by a reduction in macroevolutionary d ...
... benefits of specialization? Is specialization an evolutionary dead end? Theory has long predicted that specialization is favored because of tradeoffs in fitness when organisms utilize different resources. These microevolutionary benefits are thought to be offset by a reduction in macroevolutionary d ...
Attachment 1
... 6.L.2: Understand the flow of energy through ecosystems and the responses of populations to the biotic and abiotic factors in their environment. 7.L.1: Understand the processes, structures and functions of living organisms that enable them to survive, reproduce and carry out the basic functions ...
... 6.L.2: Understand the flow of energy through ecosystems and the responses of populations to the biotic and abiotic factors in their environment. 7.L.1: Understand the processes, structures and functions of living organisms that enable them to survive, reproduce and carry out the basic functions ...
Two aberrant serpent-eagles may be visual mimics of bird
... recently, a case of Müllerian mimicry in the only known group of birds with toxic plumages, the pitohuis Pitohui spp., has been reported (Dumbacher & Fleischer 2001). That visual mimicry in birds warrants a systematic search is demonstrated by the fact that new cases are still emerging (e.g. Witt 20 ...
... recently, a case of Müllerian mimicry in the only known group of birds with toxic plumages, the pitohuis Pitohui spp., has been reported (Dumbacher & Fleischer 2001). That visual mimicry in birds warrants a systematic search is demonstrated by the fact that new cases are still emerging (e.g. Witt 20 ...
Climate change impacts on marine ecosystems
... is only possible to a limited extent. Relatively rapid adaptations ...
... is only possible to a limited extent. Relatively rapid adaptations ...
Chlidonias albostriatus, Black-fronted Tern
... and water abstraction. A meta analysis of the trends of the breeding population from 1962-2008 (O’Donnell and Hoare 2011) showed that rivers on which declines have occurred are characterised by having relatively low flows. At such rates, populations on low-flow rivers (51.4% of black-fronted terns c ...
... and water abstraction. A meta analysis of the trends of the breeding population from 1962-2008 (O’Donnell and Hoare 2011) showed that rivers on which declines have occurred are characterised by having relatively low flows. At such rates, populations on low-flow rivers (51.4% of black-fronted terns c ...
Lesson Overview
... Biotic factors relating to a bullfrog might include algae it eats as a tadpole, the herons that eat bullfrogs, and other species competing for ...
... Biotic factors relating to a bullfrog might include algae it eats as a tadpole, the herons that eat bullfrogs, and other species competing for ...
WP Env Aim Sheet
... Aim 1: What are the levels of organization within an ecosystem? Chapter 1 - Sect 1 School Text Pages - 16-21 ...
... Aim 1: What are the levels of organization within an ecosystem? Chapter 1 - Sect 1 School Text Pages - 16-21 ...
Chapter 16 Powerpoint
... Biotic pollution is the introduction of foreign species into an ecosystem in which it did not evolve, often upsets the balance among the organisms living in that area and interferes with the ecosystem’s normal function. Foreign species compete with native species for food or habitat or may prey on t ...
... Biotic pollution is the introduction of foreign species into an ecosystem in which it did not evolve, often upsets the balance among the organisms living in that area and interferes with the ecosystem’s normal function. Foreign species compete with native species for food or habitat or may prey on t ...
CP Biology Ecology
... All or part of an ecosystem can be changed by natural events, such as fires. When the disturbance is over, community interactions that replace the ecosystem to its original condition are called secondary succession.(Think of this as a replacement community.) copyright cmassengale ...
... All or part of an ecosystem can be changed by natural events, such as fires. When the disturbance is over, community interactions that replace the ecosystem to its original condition are called secondary succession.(Think of this as a replacement community.) copyright cmassengale ...
Chapter 52
... (S - shaped curve) Carrying capacity (K) - max. population the environment can support without degrading the habitat Determined by: The species itself and the environment (resources available, predation, etc…) **Carrying capacity if obviously not fixed. It depends on abundance of limiting resources ...
... (S - shaped curve) Carrying capacity (K) - max. population the environment can support without degrading the habitat Determined by: The species itself and the environment (resources available, predation, etc…) **Carrying capacity if obviously not fixed. It depends on abundance of limiting resources ...
Metacommunity Dynamics: Decline of Functional
... irruption of matrix-dwelling species in small fragments and/or the supplementation of fragment-dwelling species by matrix located resources [11]. An alternative explanation would be the alteration of functional relationships between interacting species due to their differential sensitivity to the fr ...
... irruption of matrix-dwelling species in small fragments and/or the supplementation of fragment-dwelling species by matrix located resources [11]. An alternative explanation would be the alteration of functional relationships between interacting species due to their differential sensitivity to the fr ...
RED SISKIN INITIATIVE Taxonomy Common Name: Red Siskin
... response to habitat changes, disease and other challenges. A population that remains small over an extended period of time is increasingly at risk of an “extinction vortex” that occurs when a species drops below a certain threshold of genetic diversity, making it impossible to recover a sustainable ...
... response to habitat changes, disease and other challenges. A population that remains small over an extended period of time is increasingly at risk of an “extinction vortex” that occurs when a species drops below a certain threshold of genetic diversity, making it impossible to recover a sustainable ...
Here - NorMER
... Sainmont J, Thygesen UH, Visser AW. 2012. Diel vertical migration arising in a habitat selection game. J Theoretical Ecology. doi:10.1007/s12080-012-0714-0 Relevance: A population of identical individuals can exhibit different vertical migration behaviours even when there is no explicit density depe ...
... Sainmont J, Thygesen UH, Visser AW. 2012. Diel vertical migration arising in a habitat selection game. J Theoretical Ecology. doi:10.1007/s12080-012-0714-0 Relevance: A population of identical individuals can exhibit different vertical migration behaviours even when there is no explicit density depe ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.