Erik Trond Aschehoug
... 15. Aschehoug, E.T., Sivakoff F.S., Cayton, H.L., Morris, W.F., Haddad, N.M. 2015. Habitat restoration affects immature stages of a wetland butterfly only through indirect effects on predation. Ecology 96(7): 1761-1767. 14. Swaddle, J. P., C. D. Francis, J. R. Barber, C. B. Cooper, C. C. Kyba, D. M. ...
... 15. Aschehoug, E.T., Sivakoff F.S., Cayton, H.L., Morris, W.F., Haddad, N.M. 2015. Habitat restoration affects immature stages of a wetland butterfly only through indirect effects on predation. Ecology 96(7): 1761-1767. 14. Swaddle, J. P., C. D. Francis, J. R. Barber, C. B. Cooper, C. C. Kyba, D. M. ...
Endemism in hostparasite interactions among island populations of
... within a specific locale or for a focal species of interest) is actually documenting whether distinct interactions among populations, especially isolated populations, exist. Parasites by virtue of their diversity and dependence on other species are embedded within every ecological network or food we ...
... within a specific locale or for a focal species of interest) is actually documenting whether distinct interactions among populations, especially isolated populations, exist. Parasites by virtue of their diversity and dependence on other species are embedded within every ecological network or food we ...
Pacific rat Rattus exulans eradication by poison
... traps set prior to rat eradication. This was due to the geckos inhabiting crevices or being high up in trees (as presumably these were the only individuals that avoided rat predation). With the rats gone they began to venture onto the forest floor, which in fact appeared to be their ...
... traps set prior to rat eradication. This was due to the geckos inhabiting crevices or being high up in trees (as presumably these were the only individuals that avoided rat predation). With the rats gone they began to venture onto the forest floor, which in fact appeared to be their ...
Commonness and rarity
... range and persist (become common), some do not (remain rare) 6) Rarity showed consistency along time due to competitive exclusion and stochastic effects (Ferriere and Cazelles, 1999) 7) Dispersal ability and opportunities (metacommunity model): poorly understand, but with evidences from island (e.g. ...
... range and persist (become common), some do not (remain rare) 6) Rarity showed consistency along time due to competitive exclusion and stochastic effects (Ferriere and Cazelles, 1999) 7) Dispersal ability and opportunities (metacommunity model): poorly understand, but with evidences from island (e.g. ...
Solving the conundrum of plant species coexistence: water in space
... aeration and water stress from a community (wet meadows), where aeration stress would be the limiting factor, to an ecologically and geographically distant one (South-African fynbos) where water stress is the rule. This result strongly suggests that the underlying mechanisms are ecophysiologically f ...
... aeration and water stress from a community (wet meadows), where aeration stress would be the limiting factor, to an ecologically and geographically distant one (South-African fynbos) where water stress is the rule. This result strongly suggests that the underlying mechanisms are ecophysiologically f ...
Competition Powerpoint
... Until the 1960-1970s, most ecologists thought in terms of equilibria i.e., focused on predicting what happens at equilibrium ...
... Until the 1960-1970s, most ecologists thought in terms of equilibria i.e., focused on predicting what happens at equilibrium ...
Review for the Ecology Unit Test!
... Habitat- an area where an organism lives Niche- an organisms role in its environment – The Long Version full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions. Includes where in the food chain it is, where an organism fee ...
... Habitat- an area where an organism lives Niche- an organisms role in its environment – The Long Version full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions. Includes where in the food chain it is, where an organism fee ...
PPT - Wildlife Ecology and Conservation
... Ovis canadensis auduboni (Audubon’s Mountain Sheep) Range: Western Dakotas and E. Montana ...
... Ovis canadensis auduboni (Audubon’s Mountain Sheep) Range: Western Dakotas and E. Montana ...
Terrestrial Wildlife – Populations
... Plan Trend 2050, Conservation 2050, and Development 2050 futures to support 17 wildlife species, expressed in terms of estimated population abundance and spatial distribution. This analysis does not account for interactions between species such as predation, competition, or mutualism. ...
... Plan Trend 2050, Conservation 2050, and Development 2050 futures to support 17 wildlife species, expressed in terms of estimated population abundance and spatial distribution. This analysis does not account for interactions between species such as predation, competition, or mutualism. ...
Name: AP Biology Mutualism Case Study Response Read the
... Look up mutualism and symbiosis in several textbooks. Your instructor may have textbooks available for you to read, or you may have to go the library and fi nd some. Write their definitions down. Did the textbooks you examined agree that mutualism is an interaction in which both species benefit? Did ...
... Look up mutualism and symbiosis in several textbooks. Your instructor may have textbooks available for you to read, or you may have to go the library and fi nd some. Write their definitions down. Did the textbooks you examined agree that mutualism is an interaction in which both species benefit? Did ...
Species traits, species richness and the resilience of wetlands after
... when it was present in the community. In contrast, P. crispus had significant negative effect on total system biomass. Even though P. crispus is a productive species in monoculture, it suffers under interspecific competition when in mixed culture (Engelhardt and Ritchie 2001). Thus, this species pro ...
... when it was present in the community. In contrast, P. crispus had significant negative effect on total system biomass. Even though P. crispus is a productive species in monoculture, it suffers under interspecific competition when in mixed culture (Engelhardt and Ritchie 2001). Thus, this species pro ...
Scientific Name: Felis chaus Species Authority Schreber, 1777
... many different types of agricultural and forest plantations throughout their range, such as sugar cane plantations in India. In Israel they can be found around pisciculture ponds and irrigation ditches. Vereschagin (1959) noted that the jungle cat's use of the semi-arid plains of Azerbaijan increase ...
... many different types of agricultural and forest plantations throughout their range, such as sugar cane plantations in India. In Israel they can be found around pisciculture ponds and irrigation ditches. Vereschagin (1959) noted that the jungle cat's use of the semi-arid plains of Azerbaijan increase ...
Assessing the ecological significance of
... 5 Present address: Royal College of Obstetricians and Gynaecologists, 27 Sussex Place, Regent’s Park, London NW1 4RG, UK. © Oxford University Press 1999 ...
... 5 Present address: Royal College of Obstetricians and Gynaecologists, 27 Sussex Place, Regent’s Park, London NW1 4RG, UK. © Oxford University Press 1999 ...
Microevolution Outline Evolution
... Mutations: Change in DNA that is the ONLY process that can result in a new trait appearing in organism • Random process • Rare process • Must mutate gametes (sperm or egg cells) in order for the trait to be passed to offspring ...
... Mutations: Change in DNA that is the ONLY process that can result in a new trait appearing in organism • Random process • Rare process • Must mutate gametes (sperm or egg cells) in order for the trait to be passed to offspring ...
Results of a food addition experiment in a north-central Chile
... and Campusano 1985, Meserve and Le Boulengé 1987, Dillon and Rundel 1990, Jiménez et al. 1992, Meserve et al. 1995, Gutiérrez et al. 1997). In a sense, El Niño (and ensuing La Niña) events are natural ‘‘pulse’’ experiments that alter the role of biotic vs abiotic factors. Thus, such factors can ...
... and Campusano 1985, Meserve and Le Boulengé 1987, Dillon and Rundel 1990, Jiménez et al. 1992, Meserve et al. 1995, Gutiérrez et al. 1997). In a sense, El Niño (and ensuing La Niña) events are natural ‘‘pulse’’ experiments that alter the role of biotic vs abiotic factors. Thus, such factors can ...
Intro to Ecology Teacher Notes
... 2. Population (group of individuals). 3. Community (one or more populations). 4. Ecosystem (community and abiotic factors that interact). *Using the Prairies, give examples of each of the 4 parts of a living system. ...
... 2. Population (group of individuals). 3. Community (one or more populations). 4. Ecosystem (community and abiotic factors that interact). *Using the Prairies, give examples of each of the 4 parts of a living system. ...
presentation
... Selection acts on any trait that affects survival or reproduction predation selection physiological selection sexual selection ...
... Selection acts on any trait that affects survival or reproduction predation selection physiological selection sexual selection ...
INTRODUCTION
... Abstractions and simplifications, not facsimiles of nature. Man-made construct; partly empirical and partly deductive. Used to provide insights into natural phenomena. ...
... Abstractions and simplifications, not facsimiles of nature. Man-made construct; partly empirical and partly deductive. Used to provide insights into natural phenomena. ...
The mathematics of diseases - Adi Ben
... diseases conform to the assumptions behind the simple models. However, many complications have been introduced into the SIR−type models which allow them to better capture the observed dynamics and answer more applied questions. The following are a list of practical issues that have been implemented ...
... diseases conform to the assumptions behind the simple models. However, many complications have been introduced into the SIR−type models which allow them to better capture the observed dynamics and answer more applied questions. The following are a list of practical issues that have been implemented ...
Aquatic Ecology And The Food Web
... is necessary before fisheries managers or pond owners can begin to understand changes in fish populations. The aquatic ecosystem is a complex of interrelated species and their reaction to each other and their habitat. • Changes in one part of the system often cause changes, large and small, througho ...
... is necessary before fisheries managers or pond owners can begin to understand changes in fish populations. The aquatic ecosystem is a complex of interrelated species and their reaction to each other and their habitat. • Changes in one part of the system often cause changes, large and small, througho ...
Biosphere as a system for guaranteeing of human existence
... • Hygiene standard – is the definite range of values of the environmental factor which is optimal or is not dangerous for human health, activity and life; • Maximum permissible concentration – is maximum amount of toxic substance in unit of volume or mass of water, air or soil which does not have an ...
... • Hygiene standard – is the definite range of values of the environmental factor which is optimal or is not dangerous for human health, activity and life; • Maximum permissible concentration – is maximum amount of toxic substance in unit of volume or mass of water, air or soil which does not have an ...
Enemy free space and the structure of ecological
... and niche-overlap? How and why do species differ in their use of resources, i.e. what is the significance of differences between species? These are some of the questions that we address in this paper. Species’ niches are influenced by many variables, including the physical environment, the nature an ...
... and niche-overlap? How and why do species differ in their use of resources, i.e. what is the significance of differences between species? These are some of the questions that we address in this paper. Species’ niches are influenced by many variables, including the physical environment, the nature an ...
... products of local photosynthesis. Regional and global trade transports these products widely, such that the environmental impacts of human consumption are partly realized far from where products are actually consumed. International trade may also affect HANPP because imported goods are often produce ...
Understanding Populations Section 1
... • The territory is of value not only for the space but for the shelter, food, or breeding sites it contains. • Many organisms expend a large amount of time and energy competing with members of the same species for mates, food, or homes for their families. ...
... • The territory is of value not only for the space but for the shelter, food, or breeding sites it contains. • Many organisms expend a large amount of time and energy competing with members of the same species for mates, food, or homes for their families. ...
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.