Mechanisms structuring the pelagic microbial food web
... microbial food web? 2) Does predation limitation vary between trophic levels? 3) What is the relative importance of resource and predation limitation at different trophic levels? A field study in the northern Baltic Sea showed that dominating protozoa, flagellates and ciliates, increased with increa ...
... microbial food web? 2) Does predation limitation vary between trophic levels? 3) What is the relative importance of resource and predation limitation at different trophic levels? A field study in the northern Baltic Sea showed that dominating protozoa, flagellates and ciliates, increased with increa ...
Standard PDF - Wiley Online Library
... dynamics in two grazed grassland ecosystems in California: a coastal prairie and valley grassland. The valley grassland was dominated by exotic annual grasses and had significantly lower species diversity than the coastal prairie, which consisted of a mix of perennial and annual grasses and forbs. W ...
... dynamics in two grazed grassland ecosystems in California: a coastal prairie and valley grassland. The valley grassland was dominated by exotic annual grasses and had significantly lower species diversity than the coastal prairie, which consisted of a mix of perennial and annual grasses and forbs. W ...
Ch 54 - Houston ISD
... Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
Chapter 54
... Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
Living with your food: geckos in termitaria of Canta˜ o
... 73 individuals captured in this study, one was in a pitfall trap, two were underneath a pile of boards in a field, one was on the ground away from a termite nest at dusk and the remainder (94.5%) were found on or inside termite nests. Several additional geckos (not collected) were observed during the ...
... 73 individuals captured in this study, one was in a pitfall trap, two were underneath a pile of boards in a field, one was on the ground away from a termite nest at dusk and the remainder (94.5%) were found on or inside termite nests. Several additional geckos (not collected) were observed during the ...
Food web relationships involving Anadiplosis sp. galls
... Machaerium aculeatum (Leguminosae) were studied. The food web centered upon the leaf galls was composed of six species of hymenopterans (two species of Platygasteridae, two species of Eurytomidae,one species of Tanaostjgmatidae, and one species of Vespidae), three species of Berytidae (Hemiptera), o ...
... Machaerium aculeatum (Leguminosae) were studied. The food web centered upon the leaf galls was composed of six species of hymenopterans (two species of Platygasteridae, two species of Eurytomidae,one species of Tanaostjgmatidae, and one species of Vespidae), three species of Berytidae (Hemiptera), o ...
Native species whose distribution in the Cairngorms LBAP area has
... to the state remembered e.g. from the start of one’s career, or from one’s grandfather’s youth, or to a period with extensive written records. None of these baselines may describe the environment in a state that has not already been considerably modified by human activities. When each generation red ...
... to the state remembered e.g. from the start of one’s career, or from one’s grandfather’s youth, or to a period with extensive written records. None of these baselines may describe the environment in a state that has not already been considerably modified by human activities. When each generation red ...
2.86 MB - Participate Melbourne
... enhancing biodiversity will support the health and wellbeing of our community and contribute to effective climate change adaptation actions. The City of Melbourne has developed this strategy to provide direction about how it manages and enhances the municipal ecology, biodiversity and ecosystem serv ...
... enhancing biodiversity will support the health and wellbeing of our community and contribute to effective climate change adaptation actions. The City of Melbourne has developed this strategy to provide direction about how it manages and enhances the municipal ecology, biodiversity and ecosystem serv ...
The Origin of Species
... • The phrase refers to the view that all organisms are related through descent from an ancestor that lived in the remote past • In the Darwinian view, the history of life is like a tree with branches representing life’s diversity ...
... • The phrase refers to the view that all organisms are related through descent from an ancestor that lived in the remote past • In the Darwinian view, the history of life is like a tree with branches representing life’s diversity ...
Chapter 22
... • The phrase refers to the view that all organisms are related through descent from an ancestor that lived in the remote past • In the Darwinian view, the history of life is like a tree with branches representing life’s diversity ...
... • The phrase refers to the view that all organisms are related through descent from an ancestor that lived in the remote past • In the Darwinian view, the history of life is like a tree with branches representing life’s diversity ...
full-text pdf - phylodiversity.net
... for different size classes, we entered a unique record for each size class. Only those size classes that were common to all species in a study were included, as surface area ⁄ volume ratio generally decreases with size, thereby potentially reducing access by decomposing organisms and affecting decom ...
... for different size classes, we entered a unique record for each size class. Only those size classes that were common to all species in a study were included, as surface area ⁄ volume ratio generally decreases with size, thereby potentially reducing access by decomposing organisms and affecting decom ...
Fulltext - Jultika
... at low densities and have large home ranges. Wolverines (Gulo gulo) can both hunt and scavenge for food. In Fennoscandia, wolverines co-exist with either wild or semi-domesticated reindeer, which constitute their most important winter food. Approximately half of the 180–220 Finnish wolverines are fo ...
... at low densities and have large home ranges. Wolverines (Gulo gulo) can both hunt and scavenge for food. In Fennoscandia, wolverines co-exist with either wild or semi-domesticated reindeer, which constitute their most important winter food. Approximately half of the 180–220 Finnish wolverines are fo ...
Full Text file
... now recognize that many natural systems are nonlinear. For instance, particles attracted to simple point-attractors or periodic-attractors (e.g., limit-cycles) - may have had quite different initial conditions but still end up in the same stable final condition. In other words, in sharp contrast to ...
... now recognize that many natural systems are nonlinear. For instance, particles attracted to simple point-attractors or periodic-attractors (e.g., limit-cycles) - may have had quite different initial conditions but still end up in the same stable final condition. In other words, in sharp contrast to ...
Prey Consumption of Insectivorous Bats in Coniferous Forests of
... in Oregon. There are limited data for species inhabiting forests elsewhere in the region. We collected fecal samples from bats captured in mist nets set during May through August, 2004-05, in two watersheds in north-central Idaho that supported forests which were actively managed for timber producti ...
... in Oregon. There are limited data for species inhabiting forests elsewhere in the region. We collected fecal samples from bats captured in mist nets set during May through August, 2004-05, in two watersheds in north-central Idaho that supported forests which were actively managed for timber producti ...
A synthesis of subdisciplines: predator–prey interactions, and
... i¼1 bij , is independent of r. This implies that there is an inherent trade-off so that consumers can capture a lot of one resource or a little of many different resources, but not a lot of all resources. Note that within any system, we assume that the peak capture rates of all consumer species on t ...
... i¼1 bij , is independent of r. This implies that there is an inherent trade-off so that consumers can capture a lot of one resource or a little of many different resources, but not a lot of all resources. Note that within any system, we assume that the peak capture rates of all consumer species on t ...
JNCC Report No. 585: Conceptual Ecological Modelling of Shallow
... Seasonal variability Secondary production Sediment Sediment dynamics Sediment resuspension Sediment stability Sediment transport Sparse fauna Species trait Species trait Sublittoral Substratum ...
... Seasonal variability Secondary production Sediment Sediment dynamics Sediment resuspension Sediment stability Sediment transport Sparse fauna Species trait Species trait Sublittoral Substratum ...
How many meals a day to minimize cannibalism when rearing
... of prey size preference. Prey fish were selected on the basis of two criteria: (1) all prey had to be small enough to be eaten whole by the cannibal (based on the results of the morphological study), and (2) their size distribution had to be broad enough to give the cannibal the opportunity of selec ...
... of prey size preference. Prey fish were selected on the basis of two criteria: (1) all prey had to be small enough to be eaten whole by the cannibal (based on the results of the morphological study), and (2) their size distribution had to be broad enough to give the cannibal the opportunity of selec ...
Bee diversity effects on pollination depend on functional
... pollinator diversity and abundance have been recognized, raising concerns about a pollination crisis of crops and wild plants. However, experimental evidence for effects of pollinator species diversity on plant reproduction is extremely scarce. We established communities with 1–5 bee species to test ...
... pollinator diversity and abundance have been recognized, raising concerns about a pollination crisis of crops and wild plants. However, experimental evidence for effects of pollinator species diversity on plant reproduction is extremely scarce. We established communities with 1–5 bee species to test ...
Claw morphology, prey size selection and foraging efficiency in
... consequence of the geometry of the crab’s claw relative to that of the shell of the prey. For example, Cancer pagurus uses two methods of opening Littorina littorea depending on the relationship between the diameter of the prey’s shell and the gape of the crab’s claw (Lawton and Hughes, 1985). Snail ...
... consequence of the geometry of the crab’s claw relative to that of the shell of the prey. For example, Cancer pagurus uses two methods of opening Littorina littorea depending on the relationship between the diameter of the prey’s shell and the gape of the crab’s claw (Lawton and Hughes, 1985). Snail ...
Sponge Defenses - Fat Tuesday Productions
... discomfort. Caribbean reef fish do not feed on Tedania ignis due to its toxic chemical it produce. However there are some animals that have defense mechanisms against this in which they are able to digest the sponge toxic material for example some starfish. T. ignis uses chemical deterrence to prote ...
... discomfort. Caribbean reef fish do not feed on Tedania ignis due to its toxic chemical it produce. However there are some animals that have defense mechanisms against this in which they are able to digest the sponge toxic material for example some starfish. T. ignis uses chemical deterrence to prote ...
movement patterns and prey habits of house cats felis catus (l.)
... treated with caution. They do not necessarily reflect relative impacts on different prey types. Nor do high rates of predation prove prey populations are detrimentally effected, particularly in urban environments. ...
... treated with caution. They do not necessarily reflect relative impacts on different prey types. Nor do high rates of predation prove prey populations are detrimentally effected, particularly in urban environments. ...
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.