Litter Breakdown And Benthic Invertebrate Detritivores From A Hydrologically Restored Stream

The breakdown of coarse forms of detritus into finer forms is an ecosystem function of forested headwater streams. Many factors influence the rate of litter decay, but there is a lack of research on how stream restorations, that aim to restore hydrologic functions, influence litter breakdown. This study compared litter processing rates and macroinvertebrate detritivore assemblages between a hydrologically restored stream (Slabcamp Creek) and an un-restored control stream (White Pine Branch) in the Daniel Boone National Forest in Rowan Co., KY. Red maple (Acer rubrum) leaves were placed in mesh bags and deployed in riffles and pools at the restored and control sites on December 15, 2017. Four litter bags were retrieved from each habitat in streams on five separate occasions. The last set of bags was retrieved on April 7, 2018 after 113 days in the streams. The rate of breakdown from pools of the restored stream was faster (k = 0.0284 d-1) than the rate from the un-restored stream (k = 0.0130 d-1), and analysis indicated a significant difference in rates from pools between streams (p = 0.0021). High variation in restored site physical habitat may have affected litter breakdown. Further, most macroinvertebrate group metrics did not show significant differences between sites in abundance or biomass likely due to large variation from the restored site. However, shredder biomass was greater in restored pools due to a few large Pycnopsyche individuals, and collector-filterers had significantly greater abundance in the restored stream. Findings from this study provide baseline decomposition rates from a hydrologically restored stream and enhance our understanding of ecosystem functions from restored ecosystems

CRIMINAL LAW-MANSLAUGHTER-EFFECT OF VIOLATION OF STATUTE OR ORDINANCE ON CRIMINAL NEGLIGENCE

Defendant was convicted of the crime of negligent homicide and appealed, alleging that the Louisiana statute, making violation of a statute or ordinance presumptive evidence of criminal negligence, was repugnant to the due process clauses of the state and federal constitutions. Held, affirmed. The effect of the statute is merely to shift the burden of introducing evidence of one element of the crime charged: that of criminal negligence. The presumption does not operate as a prima facie presumption of guilt of the crime -and the state must still prove every element of the offense. State v. Nix, (La. 1947) 31 S. (2d) 1

The distribution of trees along Upper Skunk river, Iowa

Typescript (photocopy) Thesis (M.S.)--Iowa State College, 1923. Includes bibliography

CONTRACTS-BROKER\u27S LISTING AGREEMENT-EFFECT OF LEASE OF PROPERTY BY OWNER

Plaintiff, a broker, procured from defendant a listing agreement for the sale of defendant\u27s property. Plaintiff produced a purchaser, ready, willing, and able to purchase the property, but defendant refused to convey inasmuch as he had leased the property after giving the listing agreement. The lessee refused to cancel the lease for less than $3,000. Plaintiff brought an action to recover his commission and defendant disclaimed liability as the execution of the lease was known to plaintiff and to the prospective purchaser before the offer to purchase was made. Held, defendant could not alter the plaintiff\u27s rights by placing a lease on the property and the fact that plaintiff knew of the lease before or about the time he produced a purchaser does not affect his right to recover the commission agreed on in the listing agreement. Broomfield v. Abass, (Mich. 1948) 30 N.W. (2d) 874

Quercitron Oak and Its Relation to Soils

Quercitron oak (Quercus velutina Lam.) is sparsely distributed in Iowa, being reported by Pammel in only nine counties. The only patch known in Story County is this area some three miles northeast of Ames, which is a narrow strip about three miles long. Here its distribution conforms very definitely with the occurrence of an area of Carrington fine sandy loam, which soil was apparently deposited by glacial streams on common glacial till of boulder clay. The type lacks uniformity in depth, much of it showing less than three feet of sand. Where the sub-soil corresponds, it is light grayish-brown to yellowish sand. The oak has failed to spread to adjacent upland clay loam (Carrington) and terrace silt loam (Wabash), thus showing utter dependence on the fine sandy loam

The Great Basin Experiment Station

The Great Basin Experiment Station is unique in its position as a prominent station devoted to the solving of range problems. Because it features an important phase of Forest Service work, it is of interest to foresters generally

Distribution of Plants on Upper Skunk River Iowa

Data is presented on the distribution of species along the Upper Skunk River, the percent of different species is given in the principal physiographic divisions

Master of Science

thesisWith the building up and development of the West, and especially of the arid lands of this and neighboring states which are being brought under cultivation, comes the immense problem of irrigation. Lands formerly considered valueless for agricultural purposes are now being furnished with water and are proving of great productiveness and corresponding value. There are still large tracts of land above and not covered by the present canal systems which contain many acres which will, with water, be of as great value as an equal acreage of the land already under cultivation. Irrigation systems costing large sums of money have been built, and many more are being contemplated. The least expensive schemes have already been constructed and the possible remaining plans will no doubt be more costly and difficult of construction. However, as the land values increase, these plans will be worked out and the now arid lands irrigated. This naturally means that water for irrigation purposes is becoming more expensive, more valuable, and more difficult to obtain

BAILMENT-EFFECT OF SETTLEMENT BY BAILEE AS A BAR TO ACTION BY BAILOR

Plaintiff, as assignee of conditional vendor, brought an action against defendant for damage done to an automobile sold to one Zinner under a conditional sales agreement. The automobile was damaged through the negligence of the defendant and one Fulbrush, who, acting independently and with no knowledge of the plaintiff\u27s claim, settled with Zinner for the full amount of damage; defendant and Fulbrush paying Zinner $429.55. The plaintiff later repossessed the automobile as Zinner failed to keep up his payments under the conditional sales agreement. Plaintiff sold the automobile in its damaged condition and brought this action for the difference in the sum realized and the balance due him at the time he repossessed the automobile. The trial court awarded the plaintiff$409, but the appellate court vacated the finding and entered judgment for the defendant. Held, affirmed. Where a conditional vendee, as bailee, makes a settlement for full damages, a release given by him will bar another action by the conditional vendor, as bailor. Associates Discount Corporation v. Gillineau, (Mass. 1948) 78 N.E. (2d) 192