Richie Magallon
Riparian Ecology, Fall 2014
October 14, 2014
Literature Review #2 – Importance of Alder Phenology and Nitrogen Fixation in Riparian Zones Phenology is simply defined as the study of how the biological world times natural events. It is now scientifically understood that plants and animals alike take their seasonal cues from local weather. The phenology of all plant life is determined by sunlight, temperature, and water availability (in some cases precipitation, but in this case, streams). This review will focus mainly on the phenology of white alder (Alnus rhombifolia) and red alder (Alnus Rubra) and why they are able to fixate nitrogen in riparian ecosystems. Alder trees and shrubs are part of the birch family (Betulaceae) and are thought to play an essential role in riparian systems. Alder trees are flowering plants belonging to the genus Alnus which contains thirty species of Alder. While white alder trees are native to
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The flowers are produced in catkins. A catkin is a slim, cylindrical flower cluster, typically with no petals, that is usually wind-pollinated (anemophilous) although its seeds can also be water-pollinated (hydrophilous). Catkins are often drooping and are 1.25 to 4 inches (3-10 cm) long and are normally found near the end of a twig. Pollination occurs in early spring just before the leaves emerge, however, the alder retains its leaves most of the year in southern California. While White alder is closely related to the red alder (Alnus rubra) in most ways described above, the way to tell them apart is that they differ in the leaf margins being flat and not curled under. Both species, like other alders, are able to fix nitrogen, and tolerate infertile soils. Although strangely similar, both species do not tend to overlap although they seem to be important N fixers in the riparian areas that they reside
The riparian buffer discussed in the fact pattern describe leaving a 50-foot buffer zone of natural land between both sides of all streams. The plaintiff, Roberta Smith, owns a 100-acre farm which has a stream flowing through it. Under the new riparian buffer regulation four of her 100 acres will be lost because the regulation will prevent her from growing any crops on this four-acre plot of land. The plaintiff argues that a regulatory taking has occurred and that she is entitled to compensation for her lost land. It is important to understand the distinction between eminent domain and a regulatory taking before going further. In Kelo and Village of Euclid eminent domain refers to situations where the government explicitly condemns private land for public use and justify the taking under the 5th
Temperature influences the distribution of plants and this is another abiotic factor. In the Lions club tower I could feel the difference in temperature. Bottom at being cold and moist whereas the top is warm and dry. This is shown clearly on the average table. Temperatures such as snow or frost determines the distribution of plants as most plants cannot prevent freezing because of their tissues and this abiotic factor affects the plantae group. Other effects that could cause an establishment to particular plants due to temperature is the gemination of biennial plants, and this is during spring or summer known as vernalization. This is the cooling of seed in order to quickly adapt to the environment and the abiotic factors. As of the forest
We found this red alder on March 26th 1806 along the Cowlitz river, in Washington. We have recently learnt that red alder is used for 'pulpwood, furniture, cabinet work and tool handles'. Indians would take red dye and make canoes and dye fishing nets. These trees would grow in North America along lots of rivers. The would was known to be extremely strong so you also make homes out of the bark
However, the Dwight-Irwin soil has more of a deeper, moister quality. Benfield and Dwight-Irwin soils do allow for more species richness than other lower elevated ecosystems but due to the drier soils, Little Bluestem is still the most dominant plant recorded. The dominance of Little Bluestem extends down to the lowest boundaries of the ecosystem, indicating that the soil conditions do stay relatively consistent, despite the change in soil type. This allows “Little Bluestem” to again be the dominant plant species component. The drier qualities of the upper Benfield soil combine with the slightly moister qualities of the lower Dwight-Irwin soil to give the “Dry Mesic” classification. These soil moisture content qualities, the location of this ecosystem along side slopes, and the consistent dominance of the Little Bluestem plant species allows this ecosystem to be classified as Little Bluestem-Dry
Vegetation Type: White spruce Douglas fir-lodgepole pine on old alluvial fans, White spruce-western red cedar on damp alluvial fan, white spruce on permanently water-logged soil, aspen-balsam poplar on moist alluvium
Our alternative hypothesis would suggest that moss and ivy have a competitive relationship. The Competitive Exclusion Principle states that no two species can coexist if they share the same niche. In our study, both ivy and moss grew at eye level on Big Leaf Maples, Spruces, Red Cedars, Alders, and Hemlocks. Although their shared location is only part of moss’s and ivy’s niches, moss’s growth is still restricted by ivy presence. Our alternative hypothesis suggests that ivy is a superior competitor. Because ivy grows faster than moss (Richards 2008) (Stenøien 2008), the ivy can more rapidly cover the circumference of trees, depriving the moss of sunlight and bark nutrients. Ivy could also have preemptive relationship towards moss. In preemption, ivy establishes its space on the trees and prevents other organisms like moss from using the space. Both of these competitive relationships shows that ivy impedes the moss from growing on the trees. The Although we have suggested
This biome is home to a diverse collection of plants and animals in spite of the cold temperatures, slow decomposition rates, and moderate precipitation that is found there. For of those reasons, the animals and plants exhibit a wide variety of adaptations that allow them to survive the seasons of the boreal forest. The taiga biome, the largest land biome in the world, fills the definition of the winter
After a successful 78 years of operation, Stryker decided to go international to develop sales force in Canada and overseas in 1972. Stryker’s earnings increased significantly within just a few years. Today, Stryker is operating in 31 countries worldwide and has plans to continue their global expansion.Stryker is not varying its products in different countries. They offer the same products worldwide. However, Stryker does try to adapt its services in other countries. In order to be able to provide exceptional customer service, Stryker provides annual training for their employees to ensure they are meeting quality and regulations polices around the world. Stryker also has compliance officers for every division to conduct proper training,
The deciduous forests of West Virginia, like all ecosystems, are diverse homes to numerous organisms interacting with each other. West Virginia University’s Core Arboretum provides a good representation of this diversity, providing a wide spectrum of interspecies interaction. For example, when the upper canopy of a forest grows its leaves it absorbs more sunlight, leaving the plants closer to the forest floor with about 2% of the emitted sunlight. To adapt to this, species will flower in a small window of time early in the spring season before the upper canopy becomes profuse. These species are called spring ephemerals. Some of the ephemeral species observed in the arboretum, such as the Viola pubescens, had not yet reached their window and did not contain a flower. Alternatively, species such as the Sangunaria Canadensis (Figure 1), had exceeded their window and completed its reproduction phase leaving no flower to be seen. While there are plenty of species within the arboretum worth mentioning, only a few will be reflected upon, starting with Sangunaria canadensis.
The plant species consist of upland species and bottomland species. The upland species contains forests of different types of trees. In order to determine the bottomland species, we explored the two lakes. The two lake levels are generally low throughout the year causing floating-leaf and emergent plants to be dominant. I expected to find both, floating-leaf and emergent plants to dominate in the two lakes, as well as, dead decomposing plant material settling on the bottom of
Riparian areas are locations of many communities that not many acknowledge as a primary needs or impactful regions. Growing up along a riverbed opened my eyes to the importance of a healthy riparian area and what happens to the surrounding habitat if the area is not maintained. Without necessary support, a riverbed collapses over time and creates a layer of sediment on the riverbed, this results in a loss of riverside habitat and the loss of niche to many water creatures. I witnessed this as a need along Wolf Creek in Lacombe and decided that someone must take the initiative, I was that person. To raise funds and awareness of my project I entered the Caring For Our Watersheds competition, I qualified in the top ten and placed sixth, earning $600 for the
I should state in the beginning I don’t hate American, I am as American as it gets, no matter where I am I still described myself as an American. But as a citizen, I have my own opinion and criticism of my country. I should also put out there that I don’t particularly support a government formation of any kind. Because I do believe in the philosophy of anarchy,(so I may have a somewhat extremist viewpoint compared to some.) That rejects compulsory government or compulsory rule and holds that society can be organized without a coercive state. I think of government as harmful. So when I say I don’t hate America, I mean the people and our culture. I don’t wish to get into such semantics as if we are able to rule ourselves or if it’s possible at this point for us to transition into such a state after
The flower changes our ecosystem by the aggressive growth and dense thickets that exclude most native shrubs and herbs from establishing in our ecosystems.( “ Multiflora Rose” SHRUBS and SUBSHRUBS).
The song title is Counting Stars, and the artist is One Republic. I think the this part, “I-I-I-I feel something so right, doing the wrong thing, I-I-I-I feel something so wrong, doing the right thing,” the first section means that he knows he is doing the wrong thing, but he wants to do it anyway. The second section means that he doesn’t want to do the right thing, even though he knows he should. A second quote from the Counting Stars lyrics is, “Lately, I've been, I've been losing sleep, dreaming about the things that we could be.” The first part means that he is losing sleep from staying up late thinking about someone when he should be sleeping.
Gymnosperms (720 species in 65 genera) are ancient seed plants that include ginkgos (Division Ginkgophyta), cycads (Division Cycadophyta), conifers (Division Coniferophyta), and gnetophytes (Division Gnetophyta). The term gymnosperm derives from the