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Reptile assemblages across agricultural landscapes
Reptile assemblages across agricultural landscapes

... Reptile assemblages across agricultural landscapes: where does biodiversity hide?— The transition from traditional to intensive farming, aimed at large–scale production, has rapidly altered agricultural landscapes, leading to the reduction and fragmentation of natural habitats and to the consequent ...
Why plankton communities have no equilibrium: solutions to the
Why plankton communities have no equilibrium: solutions to the

... shorter than that of terrestrial plants. Therefore, one summer in plankton dynamics is comparable to many centuries of terrestrial succession. In fact, Reynolds (1993) argues that what happens between two winters in plankton is comparable to what happened since the Weichselian glaciation period in t ...
- University of Alberta
- University of Alberta

... 1980)suggested could be used as an index of the relativeimportanceof local (vs. regional) If local conditionsdominate,thenan local diversity. processesin determining on local richness, increaseinregionalrichnessshouldhavelittleeffect producing relation.Iflocal diversity is sensitiveto regionaleffect ...
The structure of N eotropical mammal communities: an appraisal of
The structure of N eotropical mammal communities: an appraisal of

... the mammalian communities at seven sites drought-deciduous tropical forest forin seven different Neotropical ecosystems. mation located in northeastern Brazil. It is These were chosen because they represent described in Mares et al. ( 1985). Data are areas that have been studied for more than from M ...
CBD
CBD

... e.g. caused by human activities, affect the biological diversity at different organismal levels (gene, species and community). Our vision is to identify general principles and patterns which can be used to explain variation in biological diversity based on some basic properties of the systems. We wi ...
Potamopyrgus antipodarum(Mollusca
Potamopyrgus antipodarum(Mollusca

... populations have a higher mean fecundity, size at maturity and growth (Jacobsen & Forbes, 1997). The rarity of males in the Mont St-Michel bay (0.02%) suggests that whatever the salinity, reproduction is largely parthenogenetic as in New Zealand low-male populations and all those from Europe and Aus ...
Mary-Kate Perrone 1 Tree Frog Mutations Most scientists will agree
Mary-Kate Perrone 1 Tree Frog Mutations Most scientists will agree

... based on the confounding factors listed above. Moreover, researchers have discovered a dramatic decline of frog populations. Since the 1950s, one third of populations have been threatened with extinction and removal from the planet’s ecosystems (Frog n.d.). Habitat losses, pollution, climate change, ...
Coevolution: A synergy in biology and ecology
Coevolution: A synergy in biology and ecology

... environment in the evolution (Luo and Zhang, 2014). Compared to Darwin’s theory, coevolution stresses the between-species interactions and the adaptation of species to their biological environments rather than physical environments. Coevolution occurs at the molecular/ /cellular/individual/populatio ...
comparing marine and terrestrial ecosystems
comparing marine and terrestrial ecosystems

... corridors are often advocated in terrestrial reserve networks, in part to maintain potential for migration or range shifts in response to climate change (e.g., Rosenberg et al. 1997, Hill et al. 1999, Parmesan et al. 1999). Marine organisms with pelagic life stages have greater potential for long-di ...
In this Issue… - Ecological Society of Australia
In this Issue… - Ecological Society of Australia

... Gerry Ho, from La Trobe University’s Department of Botany, reports on research into the  role  of  reproduction,  genetic  diversity  and  the  environment  in  the  spread  of  Cape  Iridaceae in Australia.  Background: Weeds pose a threat to global biodiversity and the economy. This threat has pro ...
Owl limpet (Lottia gigantea)
Owl limpet (Lottia gigantea)

... gigantea, scientists are able to understand how these proteins evolved and contributed to the overall diversity and expansion of metazoa life during the Cambrian Period 543 million years ago. From the calcium carbonate shell in Lottia gigantea, 39 SMPs were discovered through proteomic analysis and ...
The importance of niches for the maintenance of species diversity
The importance of niches for the maintenance of species diversity

Modelling Herbivore grazing resources using hyperspectral
Modelling Herbivore grazing resources using hyperspectral

... There is generally a strong positive correlation between leaf nitrogen concentration and photosynthesis (as long as other factors such as water availability or light are not limiting) (Field and Mooney 1986). Of the nitrogen found in a leaf, a large fraction (over 50%) is contained in the carbonfixi ...
Relationships Among Living Things A. Organizing Ecosystems
Relationships Among Living Things A. Organizing Ecosystems

... Click on this icon to return to the table of contents Click on this icon to return to the previous slide Click on this icon to move to the next slide Click on this icon to open the resources file. Click on this icon to go to the end of the presentation. ...
Ch.51 - Narragansett Schools
Ch.51 - Narragansett Schools

... flow of elements from the environment to living things and back Hydrologic or water cycle- water from evaporation & transpiration, flows into the land, why import/ how impact? p1232 Carbon cycle- carbon from CO2 and fossil fuels, gets used by plants and animals, released as CO2 or burned, why import ...
Niche construction, co-evolution and biodiversity
Niche construction, co-evolution and biodiversity

... elucidated the underlying mechanism of this distribution by mimicking the engineering effects of elephants. Bark stripping and branch splintering by elephants creates crevices large enough to serve as lizard refuges and produces exposed horizontal perches which are otherwise rare in the local tree s ...
The importance of niches for the maintenance of species diversity
The importance of niches for the maintenance of species diversity

... Our theoretical approach predicts that without niche differences, species differ by several orders of magnitude in their per capita growth rates (Fig. 2a), which is sufficient for rapid competitive exclusion (Fig. 2b). For example, with 2007 demographic rates, the population size of Navarretia atrac ...
recor : monitoring network for coralligenous assemblages
recor : monitoring network for coralligenous assemblages

... Ros et al, 1985). These reefs are a great substrate for the attachment and growth of other organisms such as red coral colonies or gorgonians. The coralligenous assemblages are a complex patchwork of micro- habitats and species. Their species richness, biomass and productivity are equivalent to thos ...
ALTERNATIVE COMPETITIVE STRATEGIES IN A PERIODICALL Y
ALTERNATIVE COMPETITIVE STRATEGIES IN A PERIODICALL Y

... severe storm damage, but it is also partially protected by the reef crest from wave activity and water turbulence. This zone "abruptly gives way to a narrow zone which is populated almost exclusively by huge tree-like colonies of Acropora palmata that take the fulI force of the surf" (Goreau, 1959). ...
Reduced flight-to-light behaviour of moth populations exposed to
Reduced flight-to-light behaviour of moth populations exposed to

... populations from some of the negative consequences of artificial light pollution [2]. Specifically, there may be less direct mortality [8,14] and lower predation risk [9,10]. Second, the lower propensity for flight-to-light in city populations suggests that the original function of this behaviour is ...
Pennings Functional groups revisited
Pennings Functional groups revisited

New Approaches to the Study of Human–Environment Interactions
New Approaches to the Study of Human–Environment Interactions

... unveiling many of the dynamics that accompany more complex phenomena, such as the interactive effects of the environment on the development of social hierarchy and the colonization of continents (Kennett et al. 2006, 2009). However, most larger-scale, dynamic social and ecological processes have pro ...
local alignments - LSU School of Medicine
local alignments - LSU School of Medicine

... included. Assumed to be related proteins. This group of sequences is used to define a “profile” that contains the sequence essence of the “family”. 3) Now with the important sequence positions highlighted, can look for more distantly related sequences that should still have the essence of the protei ...
A-level Environmental Science Question paper Unit 3
A-level Environmental Science Question paper Unit 3

... MARGIN BLANK ...
Scarus guacamaia (Rainbow Parrotfish)
Scarus guacamaia (Rainbow Parrotfish)

... intact. It was found that in areas that were protected, the populations of these fish were significantly higher than in those that had minimal safeguard against overfishing. An estimate of this decline may be seen when comparing the rainbow parrotfish populations in Bonaire which has protective meas ...
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Molecular ecology

Molecular ecology is a field of evolutionary biology that is concerned with applying molecular population genetics, molecular phylogenetics, and more recently genomics to traditional ecological questions (e.g., species diagnosis, conservation and assessment of biodiversity, species-area relationships, and many questions in behavioral ecology). It is virtually synonymous with the field of ""Ecological Genetics"" as pioneered by Theodosius Dobzhansky, E. B. Ford, Godfrey M. Hewitt and others. These fields are united in their attempt to study genetic-based questions ""out in the field"" as opposed to the laboratory. Molecular ecology is related to the field of Conservation genetics.Methods frequently include using microsatellites to determine gene flow and hybridization between populations. The development of molecular ecology is also closely related to the use of DNA microarrays, which allows for the simultaneous analysis of the expression of thousands of different genes. Quantitative PCR may also be used to analyze gene expression as a result of changes in environmental conditions or different response by differently adapted individuals.
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