History of whaling in and near North Carolina

This study aims to reconstruct the history of shore whaling in the southeastern United States, emphasizing statistics on the catch of right whales, Eubalaena glacialis, the preferred targets. The earliest record of whaling in North Carolina is of a proposed voyage from New York in 1667. Early settlers on the Outer Banks utilized whale strandings by trying out the blubber of carcasses that came ashore, and some whale oil was exported from the 1660s onward. New England whalemen whaled along the North Carolina coast during the 1720s, and possibly earlier. As some of the whalemen from the northern colonies moved to Nortb Carolina, a shore-based whale fishery developed. This activity apparently continued without interruption until the War of Independence in 1776, and continued or was reestablished after the war. The methods and techniques of the North Carolina shore whalers changed slowly: as late as the 1890s they used a drogue at the end of the harpoon line and refrained from staying fast to the harpooned whale, they seldom employed harpoon guns, and then only during the waning years of the fishery. The whaling season extended from late December to May, most successfully between February and May. Whalers believed they were intercepting whales migrating north along the coast. Although some whaling occurred as far north as Cape Hatteras, it centered on the outer coasts of Core, Shackleford, and Bogue banks, particularly near Cape Lookout. The capture of whales other than right whales was a rare event. The number of boat crews probably remained fairly stable during much of the 19th century, with some increase in effort in the late 1870s and early 1880s when numbers of boat crews reached 12 to 18. Then by the late 1880s and 1890s only about 6 crews were active. North Carolina whaling had become desultory by the early 1900s, and ended completely in 1917. Judging by export and tax records, some ocean-going vessels made good catches off this coast in about 1715-30, including an estimated 13 whales in 1719, 15 in one year during the early 1720s, 5-6 in a three-year period of the mid to late 1720s, 8 by one ship's crew in 1727, 17 by one group of whalers in 1728-29, and 8-9 by two boats working from Ocracoke prior to 1730. It is impossible to know how representative these fragmentary records are for the period as a whole. The Carolina coast declined in importance as a cruising ground for pelagic whalers by the 1740s or 1750s. Thereafter, shore whaling probably accounted for most of the (poorly documented) catch. Lifetime catches by individual whalemen on Shackleford Banks suggest that the average annual catch was at least one to two whales during 1830·80, perhaps about four during the late 1870s and early 1880s, and declining to about one by the late 1880s. Data are insufficient to estimate the hunting loss rate in the Outer Banks whale fishery. North Carolina is the only state south of New Jersey known to have had a long and well established shore whaling industry. Some whaling took place in Chesapeake Bay and along the coast of Virginia during the late 17th and early 18th centuries, but it is poorly documented. Most of the rigbt whales taken off South Carolina, Georgia, and northern Florida during the 19th century were killed by pelagic whalers. Florida is the only southeastern state with evidence of an aboriginal (pre-contact) whale fishery. Right whale calves may have been among the aboriginal whalers' principal targets. (PDF file contains 34 pages.

Heritability of Nectar Traits: Why Do We Know So Little?

Although floral and extrafloral nectar traits are important for plant reproduction and defense, we know little about their genetic basis. Only a handful of studies have quantified heritable variation for nectar traits, primarily in controlled environments that minimize environmental variation. Most such studies have reported strong genetic influences, with heritabilities often \u3e0.35. However, because nectar traits are often very responsive to environmental variation, even substantial amounts of genetic variation may be swamped out in the,field. Environmental variation deserves to be studied in its own right, including exploration of genotype X environment interaction for nectar traits . Most genetic studies of nectar have focused on production rate and concentration, whereas we know almost nothing about the heritability of other important traits such as production patterns, sugar ratios, amino acid composition, taste, and scent. Likewise, almost nothing is known about the heritability of extrafloral nectar traits. Important progress on all of these fronts can be made using simple experimental designs to quantify environmental effects, genotype X environment interactions, clonal repeatability, and correlated traits. There is great promise in molecular approaches, but their use will not obviate the need for more quantitative genetic studies in the field and greenhouse

Occurrence of Two Species of Old World Bees, \u3ci\u3eAnthidium Manicatum\u3c/i\u3e and \u3ci\u3eA. Oblongatum\u3c/i\u3e (Apoidea: Megachilidae), in Northern Ohio and Southern Michigan

Anthidium manicatum and A. oblongatum are two European bees species that have recently established themselves in North America. Anthidium manicatum has previously been documented in New York and Ontario, Canada, and A. oblongatum has been documented in New York, New Jersey, Maryland, and eastern Pennsylvania. We surveyed a number of sites in Ohio, Michigan, and Indiana for these species in 2000 and 2001, and found both bee species to have extended their ranges into northern Ohio, and A. manicatum to have moved into southern Michigan. We present a key identifying the four Anthidium species now known from northeastern North America

The Alaska Bowhead Problem: A Commentary

The continued removal of individuals from the depleted Bering Sea stock of bowhead whales (Balaena mysticetus) by Alaskan Eskimos constitutes a risk of unknown magnitude to this last concentrated remnant of a once abundant, widely distributed species. The principal international forum for discussions of scientific, technical, management, social, and political aspects of the Bowhead Problem has been the International Whaling Commission. These discussions have been plagued by a lack of agreed definitions of terminology and by the inadequacy of historical and technical data. We trace the origins of the Bowhead Problem, define the terms necessary for a rigorous discussion of "aboriginal" and "subsistence" whale fisheries, examine the biological, nutritional, and social dimensions of the Alaskan whale hunt, and assess the relationship between the present-day whale hunting methods and traditional values. We accept the best scientific analyses available, which indicate that the only safe course for this bowhead stock is protection from any form of hunting. However, if a hunt continues for political reasons, then we conclude that a return to the traditional hunting method of fastening to the whale with a harpoon, line, and float should precede or coincide with any attempt to kill the whale. This return to the traditional method would reduce the struck-but-lost rate significantly. We also conclude that there are few, if any, specific products taken exclusively from the bowhead whale that are necessary to support the material culture of the Alaskan Eskimos. Other wildlife, including the gray whale (Eschrichtius robustus), has been hunted in the past as a nutritional alternative to the bowhead. Increased reliance on the gray whale would reduce hunting pressure on the bowhead and at the same time contribute to the preservation of the whaling culture. If bowhead whaling is to be continued in order to satisfy "cultural needs," then we believe that only one bowhead whale at each village with a long tradition of whaling can be justified

Effects of Local Conspecific Density on Reproductive Success in Penstemon Digitalis and Hesperis Matronalis

Author Institution: Department of Biology, University of AkronWe investigated the effects of plant density on reproductive success for two insect-pollinated plant species—the native North American wildflower Penstemon digitalis (Foxglove-leaved Penstemon), and the showy introduced weed Hesperis matronalis (Dame's Rocket). We found no indication that local density (within 3.0 m) affected reproductive success (seeds per fruit, proportion fruit set, total seeds per plant) for either species. Penstemon digitalis suffered heavy fruit predation from micro-lepidopterans, and such damage tended non-significantly to increase with density. We discuss the reasons for our results, and suggest that an understanding of those causes is important for conservation

Direction-Dependent Polarised Primary Beams in Wide-Field Synthesis Imaging

The process of wide-field synthesis imaging is explored, with the aim of understanding the implications of variable, polarised primary beams for forthcoming Epoch of Reionisation experiments. These experiments seek to detect weak signatures from redshifted 21cm emission in deep residual datasets, after suppression and subtraction of foreground emission. Many subtraction algorithms benefit from low side-lobes and polarisation leakage at the outset, and both of these are intimately linked to how the polarised primary beams are handled. Building on previous contributions from a number of authors, in which direction-dependent corrections are incorporated into visibility gridding kernels, we consider the special characteristics of arrays of fixed dipole antennas operating around 100-200 MHz, looking towards instruments such as the Square Kilometre Array (SKA) and the Hydrogen Epoch of Reionization Arrays (HERA). We show that integrating snapshots in the image domain can help to produce compact gridding kernels, and also reduce the need to make complicated polarised leakage corrections during gridding. We also investigate an alternative form for the gridding kernel that can suppress variations in the direction-dependent weighting of gridded visibilities by 10s of dB, while maintaining compact support.Comment: 15 pages, 4 figures. Accepted for publication in JA

Growing Pains or Opportunities? A Customer Survey of Three Farmers\u27 Markets in One Rural Community

The continued growth of farmers\u27 markets is presenting new challenges to Extension. As the number of markets expands, how can Extension help those in the same community work together for mutual benefit? The study reported here examined similarities and differences among customers attending three different farmers\u27 markets within a single locality in Gettysburg, Pennsylvania. Based on 370 customer surveys, study results underscore the diversity of markets operating within the same community and provide insights into ways Extension might assist markets to work together to expand their shared customer base, increase revenues, and better serve local residents

Perceived Differences in Knowledge About Interactive Technology Between Young Adults and Their Parents

This study was designed to investigate generational differences in knowledge about interactive technology (i.e., cell phones, social networking, email, video chat) between parents and their young adult children. Parents (n = 555) and young adults (n = 604) residing in the United States provided information about their knowledge in the use of interactive technology. Young adult children also reported their perceptions of their parents’ technological knowledge for the various technologies. Comparisons of young adult self-reported technological knowledge and their parents’ own reports of technological knowledge revealed that young adults were perceived to be much more knowledgeable than their parents (by both the young adults and their parents) regardless of the technology medium. The largest differences between parents and their young adult children were associated with newer interactive technologies, with the largest gap between parent and young adult knowledge in the area of social networking. Perceived differences between parents and their young adult children were smaller among the technologies that have been in use longer (such as such as e-mail), and larger among the newer modes of interactive technology (e.g., video chat)

Distribution and Migration of the Bowhead Whale, Balaena mysticetus, in the Eastern North American Arctic

Large catches of bowhead whales, Balaena mysticetus, were made in the Eastern Arctic of North America, principally in Davis Strait, Baffin Bay, the Lancaster Sound region, Hudson Bay, and southern Foxe Basin, between 1719 and 1915. Initial stock sizes have been estimated as 11 000 in 1825 for the "Davis Strait stock" and 680 in 1859 for the "Hudson Bay stock." The separate identity of these two putative stocks needs confirmation through direct evidence. Three sets of data were used to evaluate historic and present-day trends in the distribution of bowheads in the Eastern Arctic and to test hypotheses concerning the nature, timing, and routes of their migration. Published records from commercial whale fisheries prior to 1915, unpublished and some published records from the post-commercial whaling period 1915-1974, and reported sightings made mainly by environmental assessment personnel between 1975 and 1979, were tabulated and plotted on charts. Comments made by whalers and nineteenth-century naturalists concerning bowhead distribution and movements were summarized and critically evaluated. The major whaling grounds were: (1) the west coast of Greenland between ca. 60°N and 73°N, the spring and early summer "east side " grounds of the British whalers; (2) the spring "south-west fishing" grounds, including the northeast coast of Labrador, the mouth of Hudson Strait, southeast Baffin Island, and the pack ice edge extending east from Resolution Island; (3) the summer "west water" grounds, including Pond Inlet, the Lancaster Sound region, and Prince Regent Inlet; (4) the autumn "rock-nosing" grounds along the entire east coast of Baffin Island; (5) Cumberland Sound, a spring and fall ground; and (6) northwest Hudson Bay/southwest Foxe Basin. The belief of whalers that some segregation occurs within the "Davis Strait stock" cannot be refuted or confirmed on the above evidence. However, the evident predominance of young whales and females with calves in early season catches at the Pond Inlet floe edge and in summer catches well inside Lancaster Sound and Prince Regent Inlet suggests that the route and timing of their migration differs from that of adult males. Apparently most of the whales taken on the autumn "rock-nosing" grounds were large males. The possibility that females and calves circumnavigate Baffin Island, returning south by way of Fury and Hecla Strait, is neither proven nor unproven. Evaluation of harpoon recoveries did not yield irrefutable evidence of interchange between any presently recognized bowhead stocks; however, this evidence along with recognition of distinctive morphological features does indicate that bowheads exhibit site fidelity to some degree. The conclusion is that the bowhead population in the Eastern Arctic, severely reduced by whaling activities, continues to occupy much of its former range and follows the same migratory schedule. There is no reliable and consistent evidence of appreciable recovery in absolute abundance of any Eastern Arctic stock.Key words: bowhead whale, Balaena mysticetus, distribution, migration, population identity, whaling history, Davis Strait, Baffin Bay, Lancaster Sound, West Greenland, Hudson Bay, Foxe BasinMots clés: baleine boréale, Balaena mysticetus, distribution, migration, l'identité de la population, histoire de la pêche à la baleine, le détroit de Davis, la baie de Baffin, le détroit de Lancaster, ouest Groenland, la baie d'Hudson, le bassin de Fox

CHANGES IN RUNNING GAIT PARAMETERS DURING A 161 KM TRAIL RACE

The current study examined changes in running speed and technique during a 161 km trail race and their relationship to performance. Sixteen participants were video recorded during continuous running for each of the five 32 km loops of the race. Participant’s stride length (SL), stride rate (SR), and speed were calculated. Lap and finish times were also collated from the race results. All variables changed significantly during the race (i.e. Speed?, Lap time?, SL? and SR?). Increased consistency in stride rate and length across the five laps, as well as speed, correlated positively with performance. Increased stride length in laps one, two and four correlated positively with performance. Results indicated that fatigue during the race decreased both speed and SL. Better performers ran faster with a longer SL and were able to maintain their initial speed for longer