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Conservation Systematics: The Bufo boreas Species Group
Conservation Systematics: The Bufo boreas Species Group

... diversity, including organismic, ecological, climatic, and landscape diversity (Moss, 2000). However, the purpose of systematics and taxonomy is to describe organismic diversity, which will remain the focus of this essay. Because organismic diversity is a broad term, let me define my use in this ess ...
Predation environment predicts divergent life-history
Predation environment predicts divergent life-history

... 1992). Although many factors might limit or constrain local adaptation – including gene flow, insufficient heritable genetic variation, or genetic tradeoffs – differing selective environments are often our first best predictor of divergent life-history strategies (sensu Endler 1986). The relationshi ...
the Question
the Question

... mutualism ...
- Wiley Online Library
- Wiley Online Library

... between relative fitness in a population and the resistance trait or 1)%herbivory. Consider two populations of the same species: one at high latitude (solid line) and one at low latitudes (dashed line). In scenario (a), the evolutionary outcome of this interaction (assuming all else to be equal) is ...
Invasive Species Definition Clarification and Guidance White Paper
Invasive Species Definition Clarification and Guidance White Paper

... native estuarine plants and the community of animals they support, including huge flocks of migrating waterfowl. Kentucky bluegrass would be considered an invasive species in Rocky Mountain National Park in Colorado, but considered non-invasive a mere 60 miles away at a golf course in Denver. Englis ...
Bat research and management in San Diego County
Bat research and management in San Diego County

... Bats show high roost site fidelity from year to year, generation to generation. Colony sites are likely to persist in the long term, but may move to nearby locations under circumstances of changing temperatures, staggered birthing, increased parasite load, disturbance, habitat loss, seasonal availab ...
Title: A new idea on the evolution of biodiversity
Title: A new idea on the evolution of biodiversity

... One of the greatest scientific revolutions in human history is the theory of evolution proposed by Charles Darwin (1) and, at the same time, by Alfred R. Wallace (2). The understanding of the mechanisms that allow the origin of species and explain their current presence on planet Earth has shed ligh ...
Prioritizing Ecosystems, Species, and Sites for Restoration
Prioritizing Ecosystems, Species, and Sites for Restoration

... Although common definitions of restoration suggest human action, restoration options fall along a continuum from passive to active. In passive restoration, or ‘benign neglect’ (Zahner 1992), we leave a site or landscape alone to heal itself through ecological succession, soil building, and colonizat ...
Colonization in metapopulations: a review of
Colonization in metapopulations: a review of

... In metapopulation dynamics turnover of populations in isolated patches may be frequent. Regional survival of a species in such a system with frequent extinctions hinges on its colonization ability. Colonization is more than just dispersal; when a propagule reaches a new patch i t Faces higher extinc ...
The Scale of Successional Models and Restoration Objectives
The Scale of Successional Models and Restoration Objectives

... We can arbitrarily divide this continuum into several categories. One is those processes contained within restoration sites. These would include biological processes such as competition, parasitism, and mutualism, that is, most processes involved in interactions among individuals. Restoration sites ...
NaturePrint Regional Catchment Strategies guidelines. [PDF File
NaturePrint Regional Catchment Strategies guidelines. [PDF File

... and economic risks) to refine the boundaries of the broad assets and therefore create draft biodiversity assets. Suggested approach/Example: Create maps for the individual broad assets that were created in step 2. By using local knowledge and available data sets identify the key ecological processes ...
The genomics of microbial domestication in the fermented food
The genomics of microbial domestication in the fermented food

... optimization. In an elegant experiment highlighting the speed at which selection may work in microbial systems, Bachmann et al. continually propagated a plant derived isolate of L. lactis on milk [26]. After only 1000 generations the authors observed increased growth rates, increased acidification ...
Ecological community integration increases with added trophic
Ecological community integration increases with added trophic

... debate in evolutionary biology (Reeve and Keller, 1999), where individual selectionists (Williams, 1966) and proponents of selfish gene theory (Dawkins, 1976) have rejected group selection and the idea of the superorganism (Wilson and Sober, 1989). Over a decade ago, Gilpin (1994) found that LotkaVo ...
The size of beaks of Darwin`s finches on the Galápagos Islands is
The size of beaks of Darwin`s finches on the Galápagos Islands is

... ever tried to farm on the island. No one introduced goats or other invasive species. As far as the Grants can tell, no species on Daphne Major have become extinct since the arrival of humans. The island also has the added advantage of being ecologically simple. There aren’t very many plant species o ...
Population Cycles in Forest Lepidoptera Revisited
Population Cycles in Forest Lepidoptera Revisited

... out by field ecologists, who monitored populations over many generations. Their focus was primarily on the population trends and the causes of mortality. Myers (1988) reviewed the hypotheses that were proposed to explain cyclic population dynamics, including climatic release, bottom-up influences of f ...
Using object-based segmentation to identify invasive species in
Using object-based segmentation to identify invasive species in

... when not in bloom. Ideally, all photos used for classification should be captured when specimens are in full bloom so that classification may be easier. However, this was not the case for the images used in this study. Knowing when an image is captured is also important since if an ...
native plants and adapted seeds for reclamation
native plants and adapted seeds for reclamation

... means to determine which species to plant is to visit both the reclamation site and nearby, undisturbed reference sites. If remnant stands of native species are present at the reclamation site, they are indicators of the minimum number of candidate species that might survive and grow when seeded in ...
- Wiley Online Library
- Wiley Online Library

... Each morning they twist their tails and nod their heads to one another, behaviours that recur in their courtship displays. Yet, there may be opportunities for extra-pair copulation in seahorses. Although males spend most of their time in relatively small home ranges, females move over considerably l ...
How To Be a Predator Department of Zoology, University of
How To Be a Predator Department of Zoology, University of

... do not seem to have any particular relation to ecological situations or taxonomic groups. Many of the estimates of ecological efficiency are for "tropic levels," i.e., herbivores, first-level carnivores, etc., which may involve pooling data from groups as diverse as the vertebrates and the coelenter ...
From DarwinPs Origin of Species toward a theory of natural history
From DarwinPs Origin of Species toward a theory of natural history

... nature works, the other sciences should do the same. This envy was enhanced by labeling mathematized sciences as hard and predictive, whereas low-mathematization sciences were labeled as soft and descriptive. Darwin used an elegant metaphor to distinguish today’s hard and soft sciences when he imagi ...
Environmental proteomics, biodiversity statistics
Environmental proteomics, biodiversity statistics

... understanding the functional significance of protein diversity of an ecosystem will be identifying and enumerating its distinct proteins and estimating their relative abundances. However, just as it is impossible to detect all of the species in a microbial or macrobial assemblage [34,35], so too it ...
Big APES Exam review questions for each unit
Big APES Exam review questions for each unit

... 5. Distinguish between the following words: biosphere, hydrosphere, lithosphere, atmosphere, thermosphere, mesosphere, troposphere and stratosphere. 6. Name six different types of cycles that occur in nature. Describe or draw 3-4 transitions for each cycle. Explain which portions of each cycle are a ...
Detecting the influence of climatic variables on species distributions
Detecting the influence of climatic variables on species distributions

... both species are known to occur, then favourable environmental conditions exist that should allow both species to occur in the overlap zone (Fig. 1b). In this case, niche segregation at smaller spatial scales (e.g. microhabitat, activity period, diet, etc.) would be predicted to allow the coexistenc ...
Reprint
Reprint

... from a new angle. Speciation and the functional divergence of species may occur due to random processes alone, but selection on ecological traits and functions in most cases seems to be a dominant driver [24]. This suggests that looking at the plausibility of coexistence mechanisms from an evolution ...
Biology
Biology

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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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