47 research outputs found

    Migratory bird hunting activity and harvest during the 1999 and 2000 hunting seasons Final Report April 2006

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    National surveys of waterfowl, dove, band-tailed pigeon (Columba fasciata), American woodcock (Scolopax minor), common snipe (Gallinago gallinago), rail, gallinule, and American coot (Fulica americana) hunters were conducted during the 1999 and 2000 migratory bird hunting seasons. About 1.3 million waterfowl hunters harvested 16,188,300 (±3%) ducks and 3,455,700 (±5%) geese in 1999, and a similar number of waterfowl hunters harvested 15,966,200 (±4%) ducks and 3,716,000 (±7%) geese in 2000. Mallard (Anas platyrhynchos), gadwall (A. strepera), green-winged teal (A. crecca), wood duck (Aix sponsa), and blue-winged teal (A. discors) were the most-harvested duck species, and Canada goose (Branta canadensis) was the predominant goose species in the harvest. About 1.2 million dove hunters harvested 24,437,300 (±4%) mourning doves (Zenaida macroura) in 1999 and 26,295,300 (±4%) in 2000. Woodcock hunters numbered about 170,600 in 1999 and 154,500 in 2000, and they harvested 444,800 (±20%) birds in 1999 and 390,900 (±20%) in 2000. Among the lesser-hunted species, about 40,200 people hunted snipe in 1999 (29,200 in 2000), and they harvested 276,500 (±56%) and 86,400 (±52%) snipe in 1999 and 2000, respectively; rail hunters (11,900 in 1999 and 6,900 in 2000) harvested 31,600 (±41%) rails in 1999 and 15,300 (±56%) rails in 2000; about 4,000 hunters harvested 32,900 (±74%) gallinules in 1999 and 20,900 (±70%) in 2000; and about 40,000 coot hunters harvested 236,000 (±26%) coots in 1999 and 335,000 (±45%) in 2000

    Migratory bird hunting activity and harvest during the 1999 and 2000 hunting seasons Final Report April 2006

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    National surveys of waterfowl, dove, band-tailed pigeon (Columba fasciata), American woodcock (Scolopax minor), common snipe (Gallinago gallinago), rail, gallinule, and American coot (Fulica americana) hunters were conducted during the 1999 and 2000 migratory bird hunting seasons. About 1.3 million waterfowl hunters harvested 16,188,300 (±3%) ducks and 3,455,700 (±5%) geese in 1999, and a similar number of waterfowl hunters harvested 15,966,200 (±4%) ducks and 3,716,000 (±7%) geese in 2000. Mallard (Anas platyrhynchos), gadwall (A. strepera), green-winged teal (A. crecca), wood duck (Aix sponsa), and blue-winged teal (A. discors) were the most-harvested duck species, and Canada goose (Branta canadensis) was the predominant goose species in the harvest. About 1.2 million dove hunters harvested 24,437,300 (±4%) mourning doves (Zenaida macroura) in 1999 and 26,295,300 (±4%) in 2000. Woodcock hunters numbered about 170,600 in 1999 and 154,500 in 2000, and they harvested 444,800 (±20%) birds in 1999 and 390,900 (±20%) in 2000. Among the lesser-hunted species, about 40,200 people hunted snipe in 1999 (29,200 in 2000), and they harvested 276,500 (±56%) and 86,400 (±52%) snipe in 1999 and 2000, respectively; rail hunters (11,900 in 1999 and 6,900 in 2000) harvested 31,600 (±41%) rails in 1999 and 15,300 (±56%) rails in 2000; about 4,000 hunters harvested 32,900 (±74%) gallinules in 1999 and 20,900 (±70%) in 2000; and about 40,000 coot hunters harvested 236,000 (±26%) coots in 1999 and 335,000 (±45%) in 2000

    Migratory bird hunting activity and harvest during the 2005 and 2006 hunting seasons: Preliminary Estimates

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    Table of Contents Abstract ………………………………………………………………………… 1 Introduction ……………………………………………………………………. 1 Design and Methods ……………………………………………………………. 1 Results and Discussion …………………………………………………………. 3 Waterfowl harvest estimates Species, state, flyway …………………………………………………… 8 Special seasons …………………………………………………………. 29 Canada harvest ...………………………………………………………. 32 Long-term trends graphs …………………………………………….…. 34 Waterfowl age and sex ratios …….………………………………………… 36 Long-term trends graphs …………………………………………….…. 49 Dove and pigeon estimates …………………………………………………. 53 Woodcock estimates ………………………………………………………… 55 Snipe, coot, gallinule, and rail estimates ……………………………………. 56 Species-specific rail estimates ………………………………………………. 6

    Breeding Biology of Atlantic Population Canada Geese in Nunavik, Northern Québec

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    The Atlantic population of Canada Geese (Branta canadensis interior) experienced a sharp decline in numbers in the late 1980s. Management agencies in Canada and the United States responded by implementing several measures, notably closing sport hunting seasons for a number of years in most Atlantic Flyway states and provinces and funding a research project to study the nesting ecology and the factors affecting productivity of this goose population. In this paper we present the nesting phenology and breeding biology of Atlantic population Canada Geese on their tundra nesting grounds in Nunavik, Québec, specifically on a primary study area (32.8 km2) along Hudson Bay (1997–2003) and on several secondary sites (most smaller than 1 km2) distributed along the coastal lowlands of Hudson Bay and Ungava Bay (1996–2005). In the late 1990s the population rebounded, with strong increases in the population of breeding pairs and the density of nests between 1996 and 2001, followed by stabilization of both variables from 2001 to 2005. As a result, there was a near doubling in productivity index (the number of goslings produced per km2) on the primary study area, from 17.9 in 1997 to 32.0 in 2003. Geese start laying eggs soon after snow disappears from their nesting grounds. On the primary study area, for all years pooled, mean clutch initiation date, clutch size, hatching date, and Mayfield nesting success were 27 May, 4.54 eggs, 26 June, and 67.3%, respectively. Among secondary sites along both Hudson Bay and Ungava Bay, we found a correlation between the annual average daily temperature for 4–24 May (the period leading up to egg-laying) and the annual mean clutch initiation date: higher temperatures were correlated with earlier initiation. Similarly, an earlier annual mean clutch initiation date was correlated with large mean clutch size.La population de l’Atlantique de la bernache du Canada (Branta canadensis interior) a subi un déclin prononcé à la fin des années 1980. Les organismes chargés de la gestion de la faune au Canada et aux États-Unis ont réagi en mettant en place plusieurs mesures. Ils ont notamment fermé la saison de chasse sportive dans la plupart des États et provinces de la voie migratoire de la population de l’Atlantique pendant un certain nombre d’années et financé un projet de recherche sur l’écologie de la nidification et sur les facteurs limitant la productivité de cette population. Dans le présent article, nous décrivons la phénologie de la nidification et la biologie de la reproduction de la population de l’Atlantique de la bernache du Canada dans son aire de nidification de la toundra du Nunavik (Québec), plus précisément dans une aire d’étude principale (32,8 km2) établie en bordure de la baie d’Hudson (1997 – 2003) et dans plusieurs sites secondaires de superficie plus modeste (dans la plupart des cas, inférieure à 1 km2) disséminés dans les basses-terres côtières de la baie d’Hudson et de la baie d’Ungava (1996 – 2005). À la fin des années 1990, la population a rebondi, le nombre de couples nicheurs et la densité des nids augmentant fortement entre 1996 et 2001 pour ensuite se stabiliser de 2001 à 2005. Par suite de ce redressement, le nombre d’oisons produits par kilomètre carré a presque doublé (indice de productivité) dans l’aire d’étude principale, passant de 17,9 en 1997 à 32,0 en 2003. La ponte débute peu après la disparition de la neige dans les sites de nidification. Dans l’aire d’étude principale, nous avons enregistré les valeurs moyennes suivantes (années regroupées) : début de la période de ponte : 27 mai; taille des couvées : 4,54 oeufs; premières éclosions : 26 juin; succès de la nidification en mai : 67,3 %. Aux sites secondaires, en bordure de la baie d’Hudson et de la baie d’Ungava, nous avons relevé une corrélation entre la température journalière moyenne annuelle pour la période du 4 au 24 mai (période précédant le début de la période de ponte) et la date annuelle moyenne du début de la ponte: les températures plus élevées donnaient une corrélation avec un début de période de ponte plus hâtif. De même, une date annuelle moyenne plus hâtive du début de la ponte a été corrélée avec une grande taille moyenne des couvées

    Scale-free static and dynamical correlations in melts of monodisperse and Flory-distributed homopolymers: A review of recent bond-fluctuation model studies

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    It has been assumed until very recently that all long-range correlations are screened in three-dimensional melts of linear homopolymers on distances beyond the correlation length ξ\xi characterizing the decay of the density fluctuations. Summarizing simulation results obtained by means of a variant of the bond-fluctuation model with finite monomer excluded volume interactions and topology violating local and global Monte Carlo moves, we show that due to an interplay of the chain connectivity and the incompressibility constraint, both static and dynamical correlations arise on distances r≫ξr \gg \xi. These correlations are scale-free and, surprisingly, do not depend explicitly on the compressibility of the solution. Both monodisperse and (essentially) Flory-distributed equilibrium polymers are considered.Comment: 60 pages, 49 figure

    CAGO AP management plan March 2008 Final

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    The management plan created by the Atlantic Flyway to manage the Atlantic Population of Canada Geese

    Harvey and Rodrigue 2011

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    A report detailing the Atlantic population of Canada geese and area surveyed

    Data from: Harvest distribution and derivation of Atlantic Flyway Canada geese

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    Harvest management of Canada geese (Branta canadensis) is complicated by the fact that subarctic and temperate-breeding geese occur in many of the same areas during fall and winter hunting seasons. These populations cannot readily be distinguished, which complicates efforts to estimate population-specific harvest and evaluate harvest strategies. In the Atlantic Flyway, annual banding and population monitoring programs are in place for subarctic-breeding [North Atlantic Population, Southern James Bay Population, and Atlantic Population] and temperate-breeding (Atlantic Flyway Resident Population, AFRP) Canada geese. We used a combination of direct band recoveries and estimated population sizes to determine the distribution and derivation of the harvest of those four populations during the 2004-05-2008-09 hunting seasons. Both North Atlantic Population and Atlantic Population geese were harvested almost exclusively in Atlantic Flyway states and provinces and during regular hunting seasons, whereas most Southern James Bay Population geese were taken in the Mississippi Flyway, with about 12% of that population's harvest occurring during special September seasons in the U.S. Atlantic Flyway Resident Population geese were mainly taken in the state or province in which they were banded, and most of the harvest occurred during special September seasons (42%) and regular seasons (54%). Nearly all of the special season harvest was AFRP birds 98% during September seasons and 89% during late seasons. The regular season harvest in Atlantic Flyway states was also primarily AFRP geese (62%), followed in importance by the Atlantic Population (33%). In contrast, harvest in eastern Canada consisted mainly of subarctic geese (42% Atlantic Population, 17% North Atlantic Population, and 6% Southern James Bay Population), with temperate-breeding geese making up the rest. Spring and summer harvest was difficult to characterize because band reporting rates for subsistence hunters are poorly understood; consequently, we were unable to determine the magnitude of subsistence harvest definitively. A better understanding of subsistence hunting is needed because this activity may account for a substantial proportion of the total harvest of subarctic populations. Our results indicate that special September and late seasons in the U.S. were highly effective in targeting AFRP geese without significantly increasing harvest of subarctic populations. However, it is evident that AFRP geese still are not being harvested at levels high enough to reduce their numbers to the breeding population goal of 700,000

    2005 FEIS Resident CAGO Management

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    The Final Environmental Impact Statement written by the USFWS on Canada Goose management

    Final NAP Management Plan-July 2008

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    The management plan created by the Atlantic Flyway to manage the North Atlantic Population of Canada Geese
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