We monitored 142 radiocollared adult (!1.0 yr old) white-tailed deer (Odocoileus virginianus) in 3 study areas of Massachusetts, USA, to estimate annual survival and mortality due to legal hunting. We then applied these rates to deer harvest information to estimate deer population trends over time, and compared these to trends derived solely from harvest data estimates. Estimated adult female s...

Knowledge of the relationship between waterfowl hunters and harvest levels may better inform harvest management decisions. We examined frequency of different sizes of daily harvests among duck hunters, and hunters’ contributions to duck harvest in the Central Flyway from 1975–1984, 1988–1993, and 2002–2011 using the U.S. Fish and Wildlife Service’s Parts Collection Survey. We stratified hunters...

In this study, the harvest scheduling problem of a group of cane growers in Thailand is addressed. Each member in a group is required to consistently supply sugar cane to a mill for the entire harvest season. However, the current scheduling does not account for the time-variant cane production of each cane field, which leads to unequal opportunities for growers to harvest. A portion of growers ...

Kochia (Kochia scoparia L.), Russian thistle (Salsolatragus L.), and prickly lettuce (Lactuca serriola L.) are economically important weeds infesting dryland wheat (Triticum aestivum L.) production systems in the western United States. Those weeds produce most of their seeds post-harvest. The objectives of this study were to determine the ability of an optical sensor, installed for on-the-go me...

The effects of harvest intensity (sawlog, SAW; whole tree, WTH; and complete tree, CTH) on biomass and soil C were studied in four forested sites in the southeastern US (mixed deciduous forests at Oak Ridge, TN and Coweeta, NC; Pinus taeda at Clemson, SC: and P. eliottii at Bradford, FL). In general, harvesting had no lasting effects on soil C. However, intensive temporal sampling at the NC and...

SAN LUIS OBISPO-The cost of preparing state-mandated plans to harvest trees in California has increased more than 1,200 percent over the last 30 years, making it difficult to manage forests and increasing the likelihood that forest land will be converted for other uses, according to a study released today by Cal Poly's Institute for the Study of Specialty Crops. The study found the typical harv...

Hmong farm children perform different work tasks, have different roles and responsibilities, and are thus exposed to different hazards than most North American farm children. Hmong children perform tasks in four time-related phases: pre-harvest, harvest, post-harvest, and product marketing. Standard health and safety educational materials, including the North American Guidelines for Children's ...

The study was conducted to determine the effects of nitrogen fertilizing systems and harvest frequency on levels of hard-seedness and hard-seed softening trend in M. scutellata var. Robinson. The study was carried out at Agricultural Research Farm of University of Tehran in Karaj during 2006. The experimental design was a randomized complete block with a split-split plot arrangement with four r...

Market weight pigs are subjected to numerous stressors during the marketing process from loading at the farm to stunning at the packing plant. These stressors have important implications for animal well-being and fresh pork quality traits. The objectives of this presentation are to review: 1) pre-harvest stressors in pigs; 2) common measures of stress during handling and transportation; and 3) ...