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CURRICULUM VITAE - St. Lawrence University Blogs
CURRICULUM VITAE - St. Lawrence University Blogs

... submitted to the Canadian Journal of Zoology in 2008 or 2009. Baldwin, B.S. Herbivory to the rescue? Can Diadema antillarum (or humans) stimulate grazing by reef fishes and the recovery of corals? To be submitted to Coral Reefs in 2009. Baldwin, B.S., Mayer, M., Skeels, M., *Goodrow, K., and *Locke, ...
The spatial scaling of habitat selection by African elephants
The spatial scaling of habitat selection by African elephants

... chosen arbitrarily with no biological connection to the system of study (Wheatley & Johnson 2009), and the number of ambit radii used, if any, is often limited (but see Pinto & Keitt 2008; Schmidt et al. 2008). When better understanding the scale at which environmental context influences habitat sele ...
Floristics and Distribution Patterns of Lichens and Bryophytes in
Floristics and Distribution Patterns of Lichens and Bryophytes in

... Analysis suggests that the surface vegetation in ponderosa pine ecosystems is composed of a dynamic community of vascular and nonvascular organisms with discernible early ...
Biodiversity: an introduction - European Commission
Biodiversity: an introduction - European Commission

... capacity building workshops for municipal staff in France, Germany, Hungary, Slovakia and Spain. This module covers the basic theory, trends, and benefits of biodiversity. Its objectives and target audiences are as follows. ...
Movement and Space Use by Coastal Rosy Boas (Lichanura
Movement and Space Use by Coastal Rosy Boas (Lichanura

... estimated distance moved per day and distance moved per fix. However, we found a strong correlation between these two estimates of movement so we only analyzed movement per day by sex, season, or site. Distance moved per day can be calculated in two ways. First, dividing the total distance moved by ...
From spatially explicit ecological models to mean
From spatially explicit ecological models to mean

... the integral characteristics, we shall refer to this model as a meanfield approximation. We shall also use mean-field approximation (mean-field limit) to refer to the reduction of IBM to densitydependent spatially explicit models. 3. Methods of reduction of spatially explicit model There are a few majo ...
The ecology and evolution of social behavior in microbes
The ecology and evolution of social behavior in microbes

... Cooperation has been conceptualized in two ways: either as a costly donation in a pairwise interaction between a donor and a recipient (described via a Prisoner’s Dilemma game; Nowak, 2006) or as a public good, a costly resource produced by the cooperator and freely available to others (see Glossary ...
The Global, Phenomena Complex - Woods Hole Oceanographic
The Global, Phenomena Complex - Woods Hole Oceanographic

... of genetically similar strains of that species. Considerable genetic diversity has now been documented within a single species, and evidence indicates that only some of these genotypes bloom under a given set of environmental conditions. Morphologically, all cells might look like exactly the same sp ...
Microbial Experimental Systems in Ecology
Microbial Experimental Systems in Ecology

... possible by change of environment, in minute life‐forms, whose life‐cycle was relatively soon completed, to superinduce changes of an adaptive character, if the observations extended over a suYciently long period’’ (Dallinger, 1887). Dallinger addressed this question using populations of protists as ...
Functional Ecology
Functional Ecology

... selection by natural enemies of herbivores is less likely, because there is usually virtually no genetic variation within a single agricultural field. In other cases, there are missing causal links. For example, in wild tobacco Nicotiana attenuata, the major herbivore, tomato hornworm (Manduca quinqu ...
An experimental framework to identify community functional
An experimental framework to identify community functional

... value of the species, quantified by community-weighted mean trait values (CWM; related to the mass ratio hypothesis) and (ii) the degree to which trait values differ between species in a community, quantified by different indices of functional diversity (FD; related to non-additive community effects). ...
ENVIRONMENTAL SCIENCE IM 11 SYLLABUS
ENVIRONMENTAL SCIENCE IM 11 SYLLABUS

... The syllabus is meant to offer an opportunity for candidates that may not have prior knowledge of science, to study a range of environmental issues from a scientific perspective. Although other dimensions (such as social, cultural, economical and political aspects) may be considered, the programme p ...
Benthic use of phytoplankton blooms: Agnes M. L. Karlson
Benthic use of phytoplankton blooms: Agnes M. L. Karlson

... Three main hypotheses that relate the responses of ecosystem processes to reductions in species richness have been proposed (e.g. Lawton 1994). First, the linear, “rivet” hypothesis suggests that all species contribute to ecosystem function (e.g. Lawton 1994). Second, the “redundancy” hypothesis sug ...
disturbance moderates biodiversity–ecosystem
disturbance moderates biodiversity–ecosystem

... (Naeem et al. 1996, Aarssen 1997, Huston 1997, Symstad et al. 1998, Wardle 1999). Such findings have fostered a growing sentiment among ecologists that we need to move away from simple considerations of the role of species richness in ecosystem functioning, towards a more comprehensive understanding ...
Intraspecific trait variation across scales: implications for
Intraspecific trait variation across scales: implications for

... trait values within a population are due to genetic differences, they will be heritable, and therefore, population-level means will be subject to change through natural selection over generational timescales. Plasticity, on the other hand, enables immediate adjustment of phenotypic traits, which can ...
The challenge of wild nature conserving itself
The challenge of wild nature conserving itself

... between nature conservation and wilding would lie, given that none of the authors were disinterested in one way or the other. A recent attitude survey on biodiversity was conducted as part of the Special Eurobarometer series of the European Commission. Biodiversity was defined in the survey as the t ...
articolo completo - Società Italiana Scienza della
articolo completo - Società Italiana Scienza della

... and some others, which for centuries have been almost entirely devoted to the description of the biological diversity on earth, although this term was formerly not in fashion as it is nowadays. Those historical disciplines did a great work of enormous value during a long time and science is strongly ...
lesson 1: explore the ecosystem
lesson 1: explore the ecosystem

... abiotic (non-living) components of an ecosystem impact every other factor either directly or indirectly. Changing climate will affect the plants that are able to survive in a specific ecosystem, which will in turn affect the animals that depend on these plants as a food source or for shelter. Ecosys ...
Omnivore Population Dynamics and Trophic Behavior
Omnivore Population Dynamics and Trophic Behavior

... examples of these two types of management are ‘flower strips’ providing complementary resources such as nectar and pollen for e.g. parasitoids and ‘beetle banks’ providing shelter for predatory beetles (Thomas et al., 1992; Gurr et al., 2005). CBC could be managed through actions at several scales, ...
Ant-mediated seed dispersal does not facilitate niche expansion
Ant-mediated seed dispersal does not facilitate niche expansion

... disperser are nested within those for the plant. The strength of this interaction varies across space and time, and in doing so may undermine attempts to predict future distributions. Further, given that myrmecochores are typically poor dispersers, the incomplete niche overlap between the plant and ...
Artistic and Historical Monuments: Threatened Ecosystems
Artistic and Historical Monuments: Threatened Ecosystems

... lithic substrata and they will be discussed only with regard to organic substrata preserved indoors. As in any ecosystem, biological colonization of monuments depends on a variety of factors, such as exposure, substratum, and the availability of nitrogen compounds. Studying the ecology of the commun ...
Species extinctions in food webs – local and regional processes  Anna Eklöf
Species extinctions in food webs – local and regional processes Anna Eklöf

... Most ecosystems are extremely complex networks where many species interact with each other and their non-biotic environment. Collecting all the necessary data for understanding and predicting the response of these complex systems to human-induced perturbations is probably an impossible task, or at ...
a framework of values: reasons for conserving biodiversity and
a framework of values: reasons for conserving biodiversity and

... Before examining the issue, it is a legitimate question to ask why we need such a discussion – in a nutshell, what are the reasons for asking for reasons. It may be argued, for instance, that the environmental crisis and the climate change that our planet is currently experiencing are producing effe ...
Trade-offs in community ecology: linking spatial scales and species
Trade-offs in community ecology: linking spatial scales and species

... coexistence at different spatial scales, but without any explicit connection among the scales. As examples, we consider McPeek’s studies of interspecific interactions among larval damselflies living in lakes, and Tilman’s studies on herbaceous plants living in old fields. Among genera of damselflies ...
MASTER OF SCIENE PROGRAMME IN ANATOMY
MASTER OF SCIENE PROGRAMME IN ANATOMY

... curation; field trips Biology of Crustaceans (Prerequisite: Invertebrate or equivalent) Detailed study of morphology, anatomy, physiology, embryology, ecology and taxonomy of crustaceans; stress is especially laid on the economic importance of decapods; field trips Biology of Fish Larvae (Prerequisi ...
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Ecology



Ecology (from Greek: οἶκος, ""house""; -λογία, ""study of"") is the scientific analysis and study of interactions among organisms and their environment. It is an interdisciplinary field that includes biology and Earth science. Ecology includes the study of interactions organisms have with each other, other organisms, and with abiotic components of their environment. Topics of interest to ecologists include the diversity, distribution, amount (biomass), and number (population) of particular organisms; as well as cooperation and competition between organisms, both within and among ecosystems. Ecosystems are composed of dynamically interacting parts including organisms, the communities they make up, and the non-living components of their environment. Ecosystem processes, such as primary production, pedogenesis, nutrient cycling, and various niche construction activities, regulate the flux of energy and matter through an environment. These processes are sustained by organisms with specific life history traits, and the variety of organisms is called biodiversity. Biodiversity, which refers to the varieties of species, genes, and ecosystems, enhances certain ecosystem services.Ecology is not synonymous with environment, environmentalism, natural history, or environmental science. It is closely related to evolutionary biology, genetics, and ethology. An important focus for ecologists is to improve the understanding of how biodiversity affects ecological function. Ecologists seek to explain: Life processes, interactions and adaptations The movement of materials and energy through living communities The successional development of ecosystems The abundance and distribution of organisms and biodiversity in the context of the environment.Ecology is a human science as well. There are many practical applications of ecology in conservation biology, wetland management, natural resource management (agroecology, agriculture, forestry, agroforestry, fisheries), city planning (urban ecology), community health, economics, basic and applied science, and human social interaction (human ecology). For example, the Circles of Sustainability approach treats ecology as more than the environment 'out there'. It is not treated as separate from humans. Organisms (including humans) and resources compose ecosystems which, in turn, maintain biophysical feedback mechanisms that moderate processes acting on living (biotic) and non-living (abiotic) components of the planet. Ecosystems sustain life-supporting functions and produce natural capital like biomass production (food, fuel, fiber and medicine), the regulation of climate, global biogeochemical cycles, water filtration, soil formation, erosion control, flood protection and many other natural features of scientific, historical, economic, or intrinsic value.The word ""ecology"" (""Ökologie"") was coined in 1866 by the German scientist Ernst Haeckel (1834–1919). Ecological thought is derivative of established currents in philosophy, particularly from ethics and politics. Ancient Greek philosophers such as Hippocrates and Aristotle laid the foundations of ecology in their studies on natural history. Modern ecology became a much more rigorous science in the late 19th century. Evolutionary concepts relating to adaptation and natural selection became the cornerstones of modern ecological theory.
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