Research: “Habitats as templates for the diversification of
... lineages may have profound consequences on the functioning of the communities. Consequences may be found both at the level of ecosystem processes such as decomposition rates and at the level of microevolution such as the rate of intraspecific niche and trait diversification within habitats. The atta ...
... lineages may have profound consequences on the functioning of the communities. Consequences may be found both at the level of ecosystem processes such as decomposition rates and at the level of microevolution such as the rate of intraspecific niche and trait diversification within habitats. The atta ...
HELCOM Red List Arenaria interpres
... compensation for the overgrowth of breeding sites and creating less new breeding habitats. Possibly also the predation by crows (including the Raven) is heavier in the south. These can be factors that have produced the pronounced dichotomy according to zonation in its current distribution. The turns ...
... compensation for the overgrowth of breeding sites and creating less new breeding habitats. Possibly also the predation by crows (including the Raven) is heavier in the south. These can be factors that have produced the pronounced dichotomy according to zonation in its current distribution. The turns ...
Erikson`s Life Span Development Theory Tust
... Erikson’s Life Span Development Theory • Identity versus identity confusion, it corresponds to the adolescent years. They try to find out who they are, what they are all about, where they are going in life. They need to be allowed to explore different paths to attain a healthy identity. If adolesce ...
... Erikson’s Life Span Development Theory • Identity versus identity confusion, it corresponds to the adolescent years. They try to find out who they are, what they are all about, where they are going in life. They need to be allowed to explore different paths to attain a healthy identity. If adolesce ...
Ectatomma ruidum (Cayenne Ant)
... Trinidad and Tobago and Guyana (Weber, 1946). HABITAT AND ACTIVITY. This ground nesting species (Weber, 1946) is typically found in disturbed habitats where the ground is exposed to the sun (Breed et al., 1999). It is abundant in both tropical moist and dry forests, savannahs and cultivated areas su ...
... Trinidad and Tobago and Guyana (Weber, 1946). HABITAT AND ACTIVITY. This ground nesting species (Weber, 1946) is typically found in disturbed habitats where the ground is exposed to the sun (Breed et al., 1999). It is abundant in both tropical moist and dry forests, savannahs and cultivated areas su ...
Complex Multicellular Systems and Immune Competition: New
... II. Conceptual Lines Towards a Biological Mathematical Theory III. From Hartwell’s Theory of Modules to Mathematical Structures IV. A Simple Application and Modelling Perspectives V. What is Still Missing for a Biological Mathematical Theory ...
... II. Conceptual Lines Towards a Biological Mathematical Theory III. From Hartwell’s Theory of Modules to Mathematical Structures IV. A Simple Application and Modelling Perspectives V. What is Still Missing for a Biological Mathematical Theory ...
Ecological Succession
... Ch 4 Recap: Shaping an Ecosystem • Community Interactions: – Competition – Symbiotic Relationships • Commensalism • Parasitism • Mutualism –EX. Lichen (fungus and algae) – Predation • Predator • Prey –Defense Mechanisms ...
... Ch 4 Recap: Shaping an Ecosystem • Community Interactions: – Competition – Symbiotic Relationships • Commensalism • Parasitism • Mutualism –EX. Lichen (fungus and algae) – Predation • Predator • Prey –Defense Mechanisms ...
Community Ecology and Zoonotic Diseases
... • Predation (+/– interaction) refers to interaction where one species, the predator, kills and eats the other, the prey. This includes herbivory. • Some feeding adaptations of predators are claws, teeth, fangs, stingers, and poison • Prey display various defensive adaptations • Behavioral defenses i ...
... • Predation (+/– interaction) refers to interaction where one species, the predator, kills and eats the other, the prey. This includes herbivory. • Some feeding adaptations of predators are claws, teeth, fangs, stingers, and poison • Prey display various defensive adaptations • Behavioral defenses i ...
Seasonal species interactions minimize the impact of species
... parameter space in the dynamical system (Eq. 1) leading to positive and stable biomasses for all species. The larger the range of parameter space compatible with positive stable solutions (C∗i > 0 and R∗k > 0), the larger the likelihood that the observed community can persist (Rohr et al. 2014, Saav ...
... parameter space in the dynamical system (Eq. 1) leading to positive and stable biomasses for all species. The larger the range of parameter space compatible with positive stable solutions (C∗i > 0 and R∗k > 0), the larger the likelihood that the observed community can persist (Rohr et al. 2014, Saav ...
Lesson 5 - Human Activity and Ecosystems - Hitchcock
... • An ecosystem is all of the living and nonliving things within a given area. • Changing one thing in an ecosystem can affect many other things, because everything in an ecosystem is connected. • Humans can affect ecosystems through pollution. Pollution is caused by any material or condition that ha ...
... • An ecosystem is all of the living and nonliving things within a given area. • Changing one thing in an ecosystem can affect many other things, because everything in an ecosystem is connected. • Humans can affect ecosystems through pollution. Pollution is caused by any material or condition that ha ...
Epiphytic Community Composition, Zonation, and Succession on
... epiphytic communities found on Inocarpus fagifer. This study explored how these communities are structured at two different sites on the island of Moorea, French Polynesia and compared the abiotic conditions between these two sites. The sites differed in terms of temperature ranges and humidity. Mul ...
... epiphytic communities found on Inocarpus fagifer. This study explored how these communities are structured at two different sites on the island of Moorea, French Polynesia and compared the abiotic conditions between these two sites. The sites differed in terms of temperature ranges and humidity. Mul ...
James Grundy, St Peter`s College Invasive non
... colonise new areas quickly. Species which adapt well to change genetically may be predisposed to invasiveness as it allows them to compete successfully with other species evolutionarily. This may be difficult to detect, but is often high in species with a high rate of reproduction as this results in ...
... colonise new areas quickly. Species which adapt well to change genetically may be predisposed to invasiveness as it allows them to compete successfully with other species evolutionarily. This may be difficult to detect, but is often high in species with a high rate of reproduction as this results in ...
Do predators always kill substandard Individuals
... By preying primarily on the young of the year, bears and wolves can limit ungulate numbers to 10% or less of what the habitat would support in the absence of predators. Just because a predator concentrates on fawns or calves does not mean that the predator has little or no impact on the prey populat ...
... By preying primarily on the young of the year, bears and wolves can limit ungulate numbers to 10% or less of what the habitat would support in the absence of predators. Just because a predator concentrates on fawns or calves does not mean that the predator has little or no impact on the prey populat ...
1PBIOL - PP8 (Limiting Factors) - youngs-wiki
... can increase the number of blueberry bushes since more light/space is available. Irrigation, which increases the productivity and fertility of land, can change a desert into a lush oasis. The removal of wolves by human hunters can cause an increase in the deer population since there are fewer predat ...
... can increase the number of blueberry bushes since more light/space is available. Irrigation, which increases the productivity and fertility of land, can change a desert into a lush oasis. The removal of wolves by human hunters can cause an increase in the deer population since there are fewer predat ...
Food webs on plants - UvA-DARE
... Feedingg on more than one trophic level is a common phenomenon in ecological communitiess (Polis 1991, Diehl 1993, Winemiller 1996). In arthropod food webs, many predatorss are generalists and they may not restrict their diets to herbivore species but feed alsoo on other predators and even on conspe ...
... Feedingg on more than one trophic level is a common phenomenon in ecological communitiess (Polis 1991, Diehl 1993, Winemiller 1996). In arthropod food webs, many predatorss are generalists and they may not restrict their diets to herbivore species but feed alsoo on other predators and even on conspe ...
Peel-Yalgorup System: assessment against Ramsar criteria
... This criteria is very difficult to apply and given the paucity of data from the site it is unable to be determined if this criterion would be met. A wetland should be considered internationally important if it is an important source of food for fishes, spawning ground, nursery and/or migration path ...
... This criteria is very difficult to apply and given the paucity of data from the site it is unable to be determined if this criterion would be met. A wetland should be considered internationally important if it is an important source of food for fishes, spawning ground, nursery and/or migration path ...
FOOD HABITS AND RESOURCE PARTITIONING ... (HERPESTIDAE, VIVERRIDAE) IN THE RAINFORESTS ...
... availability of this kind of food in the environment. With regard to the two Herpestidae species, the situation is different. H. ichneumon is broadly distributed across Africa and also introduced in southern Europe, and thus should expectably be characterized by a very versatile diet to adapt itself ...
... availability of this kind of food in the environment. With regard to the two Herpestidae species, the situation is different. H. ichneumon is broadly distributed across Africa and also introduced in southern Europe, and thus should expectably be characterized by a very versatile diet to adapt itself ...
Biology of Competition
... • Competition is thought to be an important force in organizing biological communities, and an important cause of natural selection. • In the “assembly” of natural communities, only groups of competing species that can coexist by resource partitioning can coexist-sometimes this coexistence is mediat ...
... • Competition is thought to be an important force in organizing biological communities, and an important cause of natural selection. • In the “assembly” of natural communities, only groups of competing species that can coexist by resource partitioning can coexist-sometimes this coexistence is mediat ...
The effect of land-use gradients on composition
... occupancy will be modelled for both water monitors (V. s. macromaculatus) and Malay civets (V. tangalunga). Malay civets were selected due to expected high abundance comparable to other mammalian scavengers and the fact they share the same ecological niche with water monitors both being generalists, ...
... occupancy will be modelled for both water monitors (V. s. macromaculatus) and Malay civets (V. tangalunga). Malay civets were selected due to expected high abundance comparable to other mammalian scavengers and the fact they share the same ecological niche with water monitors both being generalists, ...
The search for evidence of mass extinction
... But in 1860, only a year after Origin's publication, the geologist John Phillips begged to differ in a groundbreaking lecture at Cambridge, published as Life on the Earth, Its Origin and Succession. "Surely this imperfection of the geological record is overrated," he wrote. "With the exceptions of t ...
... But in 1860, only a year after Origin's publication, the geologist John Phillips begged to differ in a groundbreaking lecture at Cambridge, published as Life on the Earth, Its Origin and Succession. "Surely this imperfection of the geological record is overrated," he wrote. "With the exceptions of t ...
Trophic strategies, animal diversity and body size
... Box 1. The first two dichotomies The number of victims attacked combined with the fitness consequences to the victim of a successful attack enables us to separate typical parasitism, predation and parasitoidism. If we create a 2×2 table from these two dichotomies (Table I), we find an empty category ...
... Box 1. The first two dichotomies The number of victims attacked combined with the fitness consequences to the victim of a successful attack enables us to separate typical parasitism, predation and parasitoidism. If we create a 2×2 table from these two dichotomies (Table I), we find an empty category ...
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.