Forest Sciences Commons^™

The Effects Of Climate On Radial Growth Of Disjunct Northern White Cedar (Thuja Occidentalis L.) In Virginia, Joshua A. Kincaid

Virginia Journal of Science

Understanding the geographic range and growth of species is essential for effective land management in a landscape affected by anthropogenic activity and climate change. Climate change is expected to alter the distribution and growth of many tree species in eastern North America, including northern white cedar (Thuja occidentalis L.). This research examined the effects of climate on radial growth of T. occidentalis in disjunct populations south of its continuous range margin in eastern North America. A T. occidentalis tree-ring chronology was developed and examined for growth-climate interactions. Mean sensitivity of the T. occidentalis chronology was within the range of …

Morphometric Studies On Subadult Liza Subviridis And Sillago Sihama From Sonmiani Bay (Miani Hor), Balochistan, Pakistan, Muhammad A. Gondal, Naureen A. Qureshi, Noor U. Saher

Journal of Bioresource Management

Length-weight relationship of Liza subviridis and Sillago sihama (Family: Mugilidae; Class: Pisces and Family: Sillaginidae; Class: Pisces) in subadults sampled from Somiani Bay Balochistan, Pakistan during 2002, 2003 and 2006 was analyzed. Liza subviridis showed positive allometry (3.23) in 2002, and negative allometry during 2003 (2.95) and 2006 (1.95). Sub adults of Sillago sihama showed positive allometry during 2002 (3.10) and 2003 (3.13). An isometric condition (3.02) was observed in the samples of Sillago sihama collected from Bhaira in 2006.

On Individual, Sex And Age Differentiation Of Indian House Crow (Corvus Splendens) Call: A Preliminary Study In Potohar, Pakistan, Waqas Hameed, Inayat Ullah, Safia Janjua, Fakhar -I- Abbas, Afsar Mian

Journal of Bioresource Management

Considering importance of acoustics studies in population biology, 500 calls of the Indian House Crow (Corvus splendens) were recorded in morning - mid-afternoon hours (January-February, 2009) from 23 sites of urban areas of Potahar (Punjab, Pakistan). Calls were recorded using Sony CFS 1030 S sound records (sampling rate = 48 KHz) and edited using Sound Analysis Pro (Version 1.02). software using FFT method rate 50%, data window 9.27 ms, advanced window 1.36 ms. Through editing of calls, we selected 60 (37 ♂♂, 17 ♀♀, 6 Juvenile ♂♂) good quality spectrograms for detailed analysis. Spectrograms were characterized by rapid frequency modulations …

Review: Pollination, Pollinated And Pollinators Interaction In Pakistan, Mohammad Irshad, Elizabeth Stephen

Journal of Bioresource Management

The agriculture sector is important in the overall economy and export earnings of Pakistan. Pollination is an essential ecosystem service that depends on symbiosis between species, the pollinated and the pollinator. Animal mediated pollination contributes to the sexual production of over 90% species of modern angiosperms. Effective pollination results in increased crop production, quality improvement and more seed production. Many fruits, vegetables, edible oil crops, stimulant crops and nuts are highly dependent on bee pollination. Worldwide value of pollinators is €153 billion (217 billion US dollars). The production value of pollinated dependent crop in Pakistan is quantified to be 1.59 …

Research Note: Contribution To Mushroom Flora Of Rawalpindi-Islamabad, Pakistan, Kishwar Sultana, Naveeda Riaz, Gulshan Irshad, Ali Nauman Khan

Journal of Bioresource Management

Seven hymenomycetous fungi (mushrooms) were collected from the twin cities area during July 2008. These were identified as the members of the order Agaricales, class Basidiomycetes. They belong to five genera: *Clitocybe fragrans, *Collybia cookie, *Coprinus radians, *Coprinus sterculinus, *Volvariella bingensis, Volvariella parvula, and Termitomyces microcarpus. Five of them, marked with asterisk were reported for the first time from Pakistan.

Diagnostic Accuracy Of C-Reactive Protein In Neonatal Sepsis, Sidra Younis, Muhammad Ali Sheikh, Amjad Ali Raza

Journal of Bioresource Management

Sepsis is the most common cause of neonatal mortality and is responsible for 30-50% of total neonatal deaths each year in developing countries. The objective of the study was to determine the diagnostic accuracy of C-reactive protein (CRP) in neonatal sepsis. Fifty nine consecutive patients with risk factors and clinical features suggestive of CRP sepsis were selected as per operational definition and fulfilling the inclusion and exclusion criteria. Detailed physical examination was carried out. Blood sample for culture and CRP was taken from all the patients. Results of blood culture and CRP were noted down in the performa. Statistical analysis …

The Conservation Value Of Karst Dolines For Vascular Plants In Woodland Habitats Of Hungary: Refugia And Climate Change, Zoltán Bátori, János Csiky, Tünde Farkas, E. Anna Vojtkó, László Erdős, Dániel Kovács, Tamás Wirth, László Körmöczi, András Vojtkó

International Journal of Speleology

Limestone (karst) surfaces in Hungary are rich in dolines, in which many endangered vascular plant species occur. To date, the majority of studies dealing with doline vegetation have focused on the local rather than the landscape level, without using comparative data from other areas. However, in this study we aimed to compare the vegetation pattern and species composition of dolines under different climate regimes of Hungary with regard to regional species pools. The fieldwork was carried out between 2005 and 2012. Twenty dolines were selected in the Mecsek Mountains (southern Hungary) and nine dolines in the Aggtelek Karst area (northern …

Sequoiadendron Giganteum (Cupressaceae) At Lake Fulmor, Riverside County, California, Rudolf Schmid, Mena Schmid

Aliso: A Journal of Systematic and Floristic Botany

A GPS census made on 19 June 2012 of the Lake Fulmor area, northwestern San Jacinto Mountains, Riverside County, California, revealed seven trees of the Sierra Nevada endemic Sequoiadendron giganteum (Cupressaceae). The trees occur in a 234-meter-long narrow strip along the northwestern side of the lake. The population appears to be naturalizing. The largest tree (45 cm DBH, about 20 m tall), planted in 1980, is reproductively mature. Its six offspring to the northeast and southwest are 3–5 m tall and do not presently bear cones.

Naturalization Of Sequoiadendron Giganteum (Cupressaceae) In Montane Southern California, Rudolf Schmid, Mena Schmid

Aliso: A Journal of Systematic and Floristic Botany

After the August 1974 fire in the upper Hall Canyon area on the southwestern flank of Black Mountain in the northwestern San Jacinto Mountains, Riverside County, California, the United States Forest Service revegetated the burn in the mixed-conifer forest with the Sierra Nevada endemic Sequoiadendron giganteum (Cupressaceae). On 1 May 2009 a GPS census starting at the head of Hall Canyon revealed both in the canyon and upslope beyond it at least 157 individuals in the vicinity of the Black Mountain Trail, plus an outlier 450 m distant near the summit. This species alien to southern California is regenerating prolifically …

Letter From The Dean, Lalit Verma

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Deforestation In Nineteenth-Century Maine: The Record Of Henry David Thoreau, Geoffrey Paul Carpenter

Maine History

Thoreau’s Maine Woods, a record of three trips made between 1846 and 1857, offers a combination of literary metaphor and precise botanical and topographical observation. Comparing Thoreau’s journals with recent advances in forest ecology, author Geoffrey Paul Carpenter reveals a detailed picture of the various ways in which logging activity changed the forests, lakes, and rivers of Maine. Carpenter demonstrates that a precise understanding of forest history depends not only on traditional statistical sources, but also on the subjective personal testimony found in the literary record.

Renewal And Recovery: Shortleaf Pine /Bluestem Grass Ecosystem And Red-Cockaded Woodpeckers, George A. Bukenhofer, Joseph C. Neal, Warren G. Montague

Journal of the Arkansas Academy of Science

No abstract provided.

Wildlife Corridors In The Wheatbelt, Richard Hobbs, Denis Saunders

Journal of the Department of Agriculture, Western Australia, Series 4

Native vegetation in the Western Australian wheatbelt now persists mostly in small areas that remained uncleared for various reasons. (See 'Remnant vegetation on farms is a valuable resource' on page 43.) On their own, most of these remnant areas are difficult to manage, and too small to retain viable populations of many of the birds and other animals found in the wheatbelt. These patches of vegetation can be linked by wildlife corridors, which may increase the ability of the wildlife to move about and persist in the area

Landowner Reports Of Deer Hunter Damage In Arkansas, Richard A. Kluender, T. Bentley Wigley Jr.

Journal of the Arkansas Academy of Science

Damage to property from deer hunters, though usually not discovered immediately, is a problem for many Arkansans. A questionnaire survey was mailed to 3,773 rural landowners in Arkansas to determine the type and cost of damage suffered from hunters. Thirty-five percent reported minor problems, and 15% reported severe damage from hunters. The most common problems caused by hunters were fence cutting (33%), severe littering (16%), road damage (13%), crop damage (10%), cattle shot (8%), gates left open (6%), and trespassing (6%). Eighty-three (5%) of the landowners reported damage costs of $500 or more; one sustained a $15,000 loss. Total state-wide …

Relationship Between Diameter Breast High And Diameter Near Ground Line For Hardwood Species In Arkansas, Richard A. Kluender, Jimmie L. Yeiser

Journal of the Arkansas Academy of Science

The relationship of diameter breast high (DBH) and diameter near ground line (DNG) was investigated for three groups of Arkansas hardwoods from four physiographic regions in the state. The relationship between DBH and DNG did not vary significantly across species groups or physiographic regions. Equations of both linear and non-linear form were developed to estimate DBH from DNG. The relationships between DBH and DNG is used to estimate timber volume, growth, and value from residual stumps. The relationship is also useful in harvesting system design and cost estimation in operational forestry.

Woody Vegetation Of The Crystal Mountains Region, Derwood Mayo, P. L. Raines

Journal of the Arkansas Academy of Science

Arms-length rectangle transects and nested quadrats were used to sample overstory, understory and shrub layers on south-facing mountains, north-facing mountains and flat areas along Collier and Montgomery Creeks in Montgomery County, Arkansas. Data were collected and used to calculate importance values for trees and density values for shrubs. These data indicate that the shortleaf pine-oak forest type occurs on south-facing mountains while variants of white oak-black oak-northern red oak type occur on north-facing mountains and flat areas. Beech (Fagus grandifolia Var. caroliniana [Loud.] Fern and Rehd.) is common along Collier Creek and is completely absent from Montgomery Creek watershed. The …

Notes On Three Palustrine Natural Community Types In The Arkansas Ozarks, Steve L. Orzell, William F. Pell, Gary E. Tucker

Journal of the Arkansas Academy of Science

No abstract provided.

Planting And Care Of Trees In The Wheatbelt, F Batini

Journal of the Department of Agriculture, Western Australia, Series 4

THE climate of South Western Australia includes a long summer drought which subjects trees to considerable moisture stress.

Shade trees and shelter belts can be established successfully in the wheatbelt without hand watering, provided a suitable site and variety of tree is selected and a little time is spent in site preparation and care of the young tree.

This article, which is adapted from a Forests Department publication "Catalogue of Trees for growing under Western Australian conditions", sets out the best varieties of trees and establishment methods.

Ornamental Trees For The Farm Garden, P Luff

Journal of the Department of Agriculture, Western Australia, Series 4

THE need for trees in the farm garden is being realized by many people.

Trees around the homestead are required to give such features as shade, colour, fragrance and many other advantages to generally make an area more livable.

Besides these advantages, trees appear to help smaller plants flourish by increasing the humidity and providing various degrees of shade and sunlight.

Bee Farming : Honey Flora Of Western Australia, R S. Coleman

Journal of the Department of Agriculture, Western Australia, Series 4

A GOOD knowledge of the nectar producing plants of the State is essential for success in commercial beekeeping.

The beekeeper who has a good knowledge of which plants produce good flows, when the flows might be expected, and where good stands of those plants may be found is the one who has the best chance of success.

The Interrelationships Of Bark Beetles And Blue-Staining Fungi In Felled Norway Pine Timber, J. G. Leach, L. W. Orr, Clyde Christensen

Journal of the Minnesota Academy of Science

A study of two species of bark beetle (lps pini Say and I. grandicollis Eichh.) and the fungi associated with them has been made as the first part of a general investigation of the interrelations of insects and fungi in the deterioration of felled logs of Norway pine.