SCIENCE ADVICE FROM A RISK ASSESSMENT OF
... Largemouth Bass is a moderately large fish native to the freshwaters of North America. It is the largest member of the centrarchid family and is typically 203-380 mm in length, with a maximum weight of ~2 kg. It lives 13-15 years in Ontario. Growth rates and body size at age vary throughout its rang ...
... Largemouth Bass is a moderately large fish native to the freshwaters of North America. It is the largest member of the centrarchid family and is typically 203-380 mm in length, with a maximum weight of ~2 kg. It lives 13-15 years in Ontario. Growth rates and body size at age vary throughout its rang ...
Foraging Behavior and Success of Herons and Egrets in Natural
... were used for rice plantations in the Southeast during the 18th and 19th centuries, today’s uses include providing habitat for non-game wildlife, fishing, and aesthetics along with the primary objective of waterfowl management (Gordon et al. 1989). Depth is controlled by overflow spillways or by “fl ...
... were used for rice plantations in the Southeast during the 18th and 19th centuries, today’s uses include providing habitat for non-game wildlife, fishing, and aesthetics along with the primary objective of waterfowl management (Gordon et al. 1989). Depth is controlled by overflow spillways or by “fl ...
Solution of a Mathematical Model Describing the Change of
... under the influence of the Thyrotropin Releasing Factor (TRF) secreted by the hypothalamus in the brain. Thyrotropin, when it reaches the thyroid gland, activates a thyroid enzyme which, in turn, catalyzes the shedding of thyroxine from the colloidal follicles of the thyroid gland into the blood str ...
... under the influence of the Thyrotropin Releasing Factor (TRF) secreted by the hypothalamus in the brain. Thyrotropin, when it reaches the thyroid gland, activates a thyroid enzyme which, in turn, catalyzes the shedding of thyroxine from the colloidal follicles of the thyroid gland into the blood str ...
Effects of Tree Species Diversity on Foliar Fungal Distribution
... Effects of Tree Species Diversity on Foliar Fungal Distribution Abstract European forest ecosystems span many different ecological zones and are rich in tree species. The environment in which the trees grow similarly affects fungal communities that interact with these trees. Fungal pathogens can ca ...
... Effects of Tree Species Diversity on Foliar Fungal Distribution Abstract European forest ecosystems span many different ecological zones and are rich in tree species. The environment in which the trees grow similarly affects fungal communities that interact with these trees. Fungal pathogens can ca ...
indirect facilitation: evidence and predictions from a riparian
... among the most common species rooting into tussocks, with .90% of their individuals in this habitat found on Carex tussocks (J. Levine, unpublished data). In this system, M. guttatus grows rapidly and primarily prostrate, and its dense stoloniferous growth is known to cover areas nearly a square met ...
... among the most common species rooting into tussocks, with .90% of their individuals in this habitat found on Carex tussocks (J. Levine, unpublished data). In this system, M. guttatus grows rapidly and primarily prostrate, and its dense stoloniferous growth is known to cover areas nearly a square met ...
Alien plant invasions in tropical and sub
... sources for further invasions into savanna systems (van Wilgen et al. 2001). The Millennium Ecosystem Assessment (2005) assessed the past and current impact of five drivers of ecosystem change for a range of biomes. For the tropical grassland and savanna biome, invasive species were regarded to have ...
... sources for further invasions into savanna systems (van Wilgen et al. 2001). The Millennium Ecosystem Assessment (2005) assessed the past and current impact of five drivers of ecosystem change for a range of biomes. For the tropical grassland and savanna biome, invasive species were regarded to have ...
Control of plant species diversity and community invasibility by
... wherein certain species persist in sites where they would not otherwise be self-maintaining, a phenomenon called ‘‘mass effect’’ (Shmida and Wilson 1985, Loreau and Mouquet 1999). The density of propagule influx is also important from the standpoint of recruitment limitation, where the inability of ...
... wherein certain species persist in sites where they would not otherwise be self-maintaining, a phenomenon called ‘‘mass effect’’ (Shmida and Wilson 1985, Loreau and Mouquet 1999). The density of propagule influx is also important from the standpoint of recruitment limitation, where the inability of ...
OPPORTUNISTIC EVOLUTION: ABIOTIC ENVIRONMENTAL
... interspecific competition. These are, in effect, opportunities for survival of divergent phenotypes through nonadaptive evolution. The patterns and processes associated with stress-related evolution lend support to concepts of evolution as a process with a distinct hierarchy of levels. There are two ...
... interspecific competition. These are, in effect, opportunities for survival of divergent phenotypes through nonadaptive evolution. The patterns and processes associated with stress-related evolution lend support to concepts of evolution as a process with a distinct hierarchy of levels. There are two ...
PDF - McGill University
... Grether 2000; Brooks & Endler 2001a; Pilastro et al. 2004). With respect to natural selection, colourful males may be more susceptible to predatory fishes, perhaps because they are more conspicuous (Endler 1978, 1983; Godin & McDonough 2003). Spatial variation in male guppy colour should therefore re ...
... Grether 2000; Brooks & Endler 2001a; Pilastro et al. 2004). With respect to natural selection, colourful males may be more susceptible to predatory fishes, perhaps because they are more conspicuous (Endler 1978, 1983; Godin & McDonough 2003). Spatial variation in male guppy colour should therefore re ...
video slide - Bremen High School District 228
... Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
Chapter 53
... Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
Rehabilitation and Restoration of Degraded Forests
... WWF’s vision for the forests of the world, shared with its long-standing partner, IUCN, is that: “the world will have more extensive, more diverse and higher-quality forest landscapes which will meet human needs and aspirations fairly, while conserving biological diversity and fulfilling the ecosyst ...
... WWF’s vision for the forests of the world, shared with its long-standing partner, IUCN, is that: “the world will have more extensive, more diverse and higher-quality forest landscapes which will meet human needs and aspirations fairly, while conserving biological diversity and fulfilling the ecosyst ...
population
... Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
Dewatering Discharge in the Goldfields: Ecology, Monitoring
... regulator concerns and promote environmental stewardship. In some cases, this may require more comprehensive action such as monitoring against key performance indicators or trigger values during active dewatering and potentially following cessation, to determine recovery. In addition, where there ar ...
... regulator concerns and promote environmental stewardship. In some cases, this may require more comprehensive action such as monitoring against key performance indicators or trigger values during active dewatering and potentially following cessation, to determine recovery. In addition, where there ar ...
Supplementary Online Material
... nutrient and energy flow, while double-headed arrows with dotted outlines indicate resource competition. + and – symbols within arrows indicate benefit or cost to each participant (e.g. + + within an arrow is a mutualism). The proportion of colours within each arrow indicates the proportion of inter ...
... nutrient and energy flow, while double-headed arrows with dotted outlines indicate resource competition. + and – symbols within arrows indicate benefit or cost to each participant (e.g. + + within an arrow is a mutualism). The proportion of colours within each arrow indicates the proportion of inter ...
Conditional use of honest signaling by a
... 10 mm) in its bottom surface, the center of each of these holes being 20 mm from the nearest side of the cage and 100 mm from the center of the other cork hole. The ant-like salticid was introduced into the cage through one hole, and then the ant-eating salticid was immediately introduced through th ...
... 10 mm) in its bottom surface, the center of each of these holes being 20 mm from the nearest side of the cage and 100 mm from the center of the other cork hole. The ant-like salticid was introduced into the cage through one hole, and then the ant-eating salticid was immediately introduced through th ...
character release following extinction in a caribbean reef
... of a primary resource, such as food, light, or space; (5) environments before and after character release must not be greatly different, otherwise the morphological change could simply be a phenotypic response to changed environmental conditions; and (6) competition must be demonstrated in the taxa ...
... of a primary resource, such as food, light, or space; (5) environments before and after character release must not be greatly different, otherwise the morphological change could simply be a phenotypic response to changed environmental conditions; and (6) competition must be demonstrated in the taxa ...
Sullivan Alaska Marine Science Symposium 2015 Poster Mechanisms influencing growth and size at age of Pacific halibut
... • Evidence of intraspecific competition (density-dependent growth) (Fig. 3B), interspecific competition (Fig. 3C), and temperature effects (Fig. 3D) on halibut size-at-age • Likely these variables work synergistically to influence large scale variability in size-at-age • Other mechanisms to consider ...
... • Evidence of intraspecific competition (density-dependent growth) (Fig. 3B), interspecific competition (Fig. 3C), and temperature effects (Fig. 3D) on halibut size-at-age • Likely these variables work synergistically to influence large scale variability in size-at-age • Other mechanisms to consider ...
Scale Model of a Soil Aggregate and Associated Organisms: A
... trophic groups found in the soil. The soil aggregate was a logical choice for portraying a soil “ecological unit,” because it is a discrete, identifiable association of soil mineral and organic matter and is itself a product of biological activity (Hattori, 1994; Oades, 1993). The practical goal of ...
... trophic groups found in the soil. The soil aggregate was a logical choice for portraying a soil “ecological unit,” because it is a discrete, identifiable association of soil mineral and organic matter and is itself a product of biological activity (Hattori, 1994; Oades, 1993). The practical goal of ...
Lethal effects of habitat degradation on fishes through changing
... the ability of the changed habitat to meet the inhabitant’s resource requirements [13,14]. As the services provided by a habitat change, so will the interactions between species that live within the habitat. Understanding how community processes change as the quality of the environment changes is ce ...
... the ability of the changed habitat to meet the inhabitant’s resource requirements [13,14]. As the services provided by a habitat change, so will the interactions between species that live within the habitat. Understanding how community processes change as the quality of the environment changes is ce ...
Predator Avoidance in Extremophile Fish
... either through visual [2±4], olfactory [5], tactile [6,7], or auditory cues [8]. Upon this initial detection, the prey then has to assess the likelihood of an attack, which is crucial for triggering an appropriate avoidance response [2]. For the purpose of the present study, we define ³predator avoi ...
... either through visual [2±4], olfactory [5], tactile [6,7], or auditory cues [8]. Upon this initial detection, the prey then has to assess the likelihood of an attack, which is crucial for triggering an appropriate avoidance response [2]. For the purpose of the present study, we define ³predator avoi ...
Moose Population Density and Habitat Productivity as Drivers of
... the population growth is therefore essential (Crawley 1989; Srether 1997). I h i t i n g f x t o r s can be defined as any process which quantifiahly afCecl population growth, and can thus bc both density-dcpendent and density-independent factors (Messier 1991). Examples of limiting factors are weat ...
... the population growth is therefore essential (Crawley 1989; Srether 1997). I h i t i n g f x t o r s can be defined as any process which quantifiahly afCecl population growth, and can thus bc both density-dcpendent and density-independent factors (Messier 1991). Examples of limiting factors are weat ...
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.