Biodiversity and Ecosystem Management
... Ecosystem management requires more than just ensuring that the correct plants and animals are present in an area. It also means that abiotic factors must be considered. Excessive disturbance can alter vegetation structure, composition, and patterns from those that had been present historically. This ...
... Ecosystem management requires more than just ensuring that the correct plants and animals are present in an area. It also means that abiotic factors must be considered. Excessive disturbance can alter vegetation structure, composition, and patterns from those that had been present historically. This ...
Sexual selection, reproductive isolation and the genic view of
... model, because of the lack of hybrid sterility or any other post-mating barrier between species. This, however, has not prevented them from forming highly adapted and ecologically specialized species. In a similar vein, Wu's (2001) model does not account for nonadaptive speciation events, e.g. isola ...
... model, because of the lack of hybrid sterility or any other post-mating barrier between species. This, however, has not prevented them from forming highly adapted and ecologically specialized species. In a similar vein, Wu's (2001) model does not account for nonadaptive speciation events, e.g. isola ...
The interplay of pollinator diversity, pollination services
... Using 22 forest fragments differing in size, shape and isolation in southern Costa Rica they did not find effects on species numbers but report strong effects on bee community composition, with opposing responses of native stingless bees ...
... Using 22 forest fragments differing in size, shape and isolation in southern Costa Rica they did not find effects on species numbers but report strong effects on bee community composition, with opposing responses of native stingless bees ...
Parasites as predators - University of South Florida
... grown in prominence, recently approaching the number of predator–prey publications in 13 top ecological journals (Figure 1). In spite of increased usage of the parasite-aspredator analogy (Box 1) and of the more general term ‘natural enemy’ [6–10], the two fields remain largely separate. In cases wh ...
... grown in prominence, recently approaching the number of predator–prey publications in 13 top ecological journals (Figure 1). In spite of increased usage of the parasite-aspredator analogy (Box 1) and of the more general term ‘natural enemy’ [6–10], the two fields remain largely separate. In cases wh ...
Population and Evolutionary Dynamics based on Predator
... physically simulated environments will provide valuable insights into the relationship and the interaction between population and evolutionary dynamics. The virtual creature models, following the pioneering study (Sims, 1994b), allow us to analyze the morphology-behavior coevolution in 3D environmen ...
... physically simulated environments will provide valuable insights into the relationship and the interaction between population and evolutionary dynamics. The virtual creature models, following the pioneering study (Sims, 1994b), allow us to analyze the morphology-behavior coevolution in 3D environmen ...
ASET postprint
... Hutchinson considered another set of conditions under which the exclusion principle cannot be expected to hold: periodic environmental changes in the habitat, where the frequency of these changes has the same order of magnitude as the time it takes for competitive exclusion to run its course (1957, ...
... Hutchinson considered another set of conditions under which the exclusion principle cannot be expected to hold: periodic environmental changes in the habitat, where the frequency of these changes has the same order of magnitude as the time it takes for competitive exclusion to run its course (1957, ...
Chapter 20: Coevolution and Mutualism - Eco
... populations of two or more species interact, each may evolve in response to characteristics of the other that affect its own evolutionary fitness. This process is referred to as coevolution: plants ...
... populations of two or more species interact, each may evolve in response to characteristics of the other that affect its own evolutionary fitness. This process is referred to as coevolution: plants ...
Interaction in Ecosystems
... These organisms have the same osmotic potential as their surrounding environment The concentration of jellyfish body fluids changes with the salinity of the seawater. Note salt concentration of seawater does not vary much over a short period of time ...
... These organisms have the same osmotic potential as their surrounding environment The concentration of jellyfish body fluids changes with the salinity of the seawater. Note salt concentration of seawater does not vary much over a short period of time ...
Ecological Succession
... • Because it is the process of life for plants, soil and other living organisms. • Because organisms alter soil structure, chemistry, and microclimates, the species composition of ecological communities constantly changes over time. • Succession will continue until the environment reaches it s fi ...
... • Because it is the process of life for plants, soil and other living organisms. • Because organisms alter soil structure, chemistry, and microclimates, the species composition of ecological communities constantly changes over time. • Succession will continue until the environment reaches it s fi ...
Biome Map Coloring - Shelby County Schools
... 1. A population consists of a group of organisms of the same species that occupies a particular area. 2. Populations change over time. 3. Populations have descriptors, such as birth and mortality rates, that are distinct from characteristics that describe individual members of a group. 4. Population ...
... 1. A population consists of a group of organisms of the same species that occupies a particular area. 2. Populations change over time. 3. Populations have descriptors, such as birth and mortality rates, that are distinct from characteristics that describe individual members of a group. 4. Population ...
Bottomland Lecture 2..
... • Myriad of different species with different site requirements and growth habits makes management extremely complex and variable ...
... • Myriad of different species with different site requirements and growth habits makes management extremely complex and variable ...
fall final exam review ws #1
... 47. Under what type of conditions would a population grow exponentially? Below is a graph illustrating how “limiting factors” can affect population growth. ...
... 47. Under what type of conditions would a population grow exponentially? Below is a graph illustrating how “limiting factors” can affect population growth. ...
analysis with the EF concept in interaction with other indicators
... Footprint, Gross Domestic Product and with some others indices is presented in this work. In that case Ecological Footprint is considered a quality of growth indicator. Ecological Footprint (EF) analysis measures the amount of the world’s biological productivity an individual uses in a given year. E ...
... Footprint, Gross Domestic Product and with some others indices is presented in this work. In that case Ecological Footprint is considered a quality of growth indicator. Ecological Footprint (EF) analysis measures the amount of the world’s biological productivity an individual uses in a given year. E ...
V) Maintenance of species diversity
... competitive dominant (or a few) Æ low diversity c) but, at extremely high levels of disturbance, nothing or only a few species of rapid colonizers (or disturbance tolerant species) would persist Æ low diversity d) Recall that competitively superior species typically have ...
... competitive dominant (or a few) Æ low diversity c) but, at extremely high levels of disturbance, nothing or only a few species of rapid colonizers (or disturbance tolerant species) would persist Æ low diversity d) Recall that competitively superior species typically have ...
Page ‹#› Human population growth
... i. The demographic transition Why the demographic transition? What causes the dropping mortality rates? ...
... i. The demographic transition Why the demographic transition? What causes the dropping mortality rates? ...
Islands as model systems in ecology and evolution
... This article focuses on terrestrial islands surrounded by water that have arisen devoid of life (de novo; Box 2). However, many other insular systems are also relevant to some of the points raised and may provide substantial opportunities for research. From a biological perspective, a key characteri ...
... This article focuses on terrestrial islands surrounded by water that have arisen devoid of life (de novo; Box 2). However, many other insular systems are also relevant to some of the points raised and may provide substantial opportunities for research. From a biological perspective, a key characteri ...
Unit04: Evolution and Biodiversity
... B. Some species have broad ecological roles and are termed generalist species. 1. Their living range is broad, includes many different places. 2. They can eat a variety of foods, and tolerate a wide range of environments. 3. If environment is changeable, the generalist will survive better than the s ...
... B. Some species have broad ecological roles and are termed generalist species. 1. Their living range is broad, includes many different places. 2. They can eat a variety of foods, and tolerate a wide range of environments. 3. If environment is changeable, the generalist will survive better than the s ...
SharksSp15 - St. Olaf Pages
... ● Reduced shark predation on juveniles increase marine mammal and sea turtle populations ● Increased population sizes of marine mammals and sea turtles create competition within and between species (trophic cascade) ● Increased population sizes of marine mammals and sea turtles decreases the amount ...
... ● Reduced shark predation on juveniles increase marine mammal and sea turtle populations ● Increased population sizes of marine mammals and sea turtles create competition within and between species (trophic cascade) ● Increased population sizes of marine mammals and sea turtles decreases the amount ...
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.