Volume 15 Issue 3 | Ecoscience

Ecoscience

VOL. 15 · NO. 3 | September 2008

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Articles (15)

Ecoscience

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Articles

Genetic divergence of Cirsium scariosum in eastern and western Canada

Joanne L. Golden, Peter Achuff, John F. Bain

Ecoscience 15 (3), 293-297, (1 September 2008) https://doi.org/10.2980/15-3-3118

KEYWORDS: Cirsium minganense, Cirsium scariosum, ETS, genetic divergence, ISSR, ITS, Cirsium minganense, Cirsium scariosum, divergence génétique, ETS, ISSR, ITS

No abstract available

A reciprocal transplant study of activity, body size, and winter survivorship in juvenile lizards from two sites at different altitude

Pablo Iraeta, Alfredo Salvador, José A. Díaz

Ecoscience 15 (3), 298-304, (1 September 2008) https://doi.org/10.2980/15-3-3119

KEYWORDS: drought, food scarcity, geographic variation, maternal trade-offs, Psammodromus, reproductive strategies, compromis maternels, pénurie de nourriture, Psammodromus, Sécheresse, stratégies reproductives, variation géographique

No abstract available

Direct and indirect effects of ants on seed predation in moth/yucca mutualisms

Rebecca S. Snell, John F. Addicott

Ecoscience 15 (3), 305-314, (1 September 2008) https://doi.org/10.2980/15-3-3116

KEYWORDS: ant protection, behavioural indirect effects, mutualism, quantile regressions, effets comportementaux indirects, mutualisme, protection par les fourmis, régressions quantiles

No abstract available

Nitrogen uptake by Hylocomium splendens during snowmelt in a boreal forest

Åsa Forsum, Hjalmar Laudon, Annika Nordin

Ecoscience 15 (3), 315-319, (1 September 2008) https://doi.org/10.2980/15-3-3141

KEYWORDS: amino acid N, Ammonium, bryophyte ecophysiology, nitrate, acide aminé N, Ammonium, écophysiologie des bryophytes, nitrate

No abstract available

Ventral colour polymorphism correlates with alternative behavioural patterns in female common lizards (Lacerta vivipara)

Elodie Vercken, Jean Clobert

Ecoscience 15 (3), 320-326, (1 September 2008) https://doi.org/10.2980/15-3-3135

KEYWORDS: laboratory-staged encounters, resource holding potential, signals, social competition, compétition sociale, confrontations en laboratoire, potentiel compétitif, signaux

No abstract available

Water mite parasitism is associated with body condition and sex of the whirligig beetle Dineutus nigrior (Coleoptera: Gyrinidae)

Evan R. Fairn, Albrecht I. Schulte-Hostedde, Yves Alarie

Ecoscience 15 (3), 327-331, (1 September 2008) https://doi.org/10.2980/15-3-3134

KEYWORDS: body condition, gyrinidae, sex-biased parasitism, Water mites, whirligig beetle, acariens aquatiques, condition physique, gyrin, gyrinidae, parasitisme biaisé en fonction du sexe

No abstract available

Habitat selection of American marten in a logged landscape at the southern fringe of the boreal forest

Guillaume Godbout, Jean-Pierre Ouellet

Ecoscience 15 (3), 332-342, (1 September 2008) https://doi.org/10.2980/15-3-3091

KEYWORDS: American Marten, clear-cuts, habitat selection, partial logging, precommercial thinning, Quebec, coupes partielles, coupes totales, éclaircies précommerciales, martre d'Amérique, Québec, sélection de l'habitat

No abstract available

The effect of spatial scale on plant associational defences against mammalian herbivores

Ulrika Alm Bergvall, Pasi Rautio, Hanna Sirén, Juha Tuomi, Olof Leimar

Ecoscience 15 (3), 343-348, (1 September 2008) https://doi.org/10.2980/15-3-3112

KEYWORDS: associational defence, associational susceptibility, fallow deer, selectivity, spatial scale, daim, défense associative, échelle spatiale, sélectivité, sensibilité associative

No abstract available

Relationships between radial growth rates and lifespan within North American tree species

Bryan A. Black, Jim J. Colbert, Neil Pederson

Ecoscience 15 (3), 349-357, (1 September 2008) https://doi.org/10.2980/15-3-3149 Open Access

KEYWORDS: dendrochronology, growth rate, longevity, old-growth forest, Dendrochronologie, forêt ancienne, longévité, taux de croissance

No abstract available

Site-specific features affect pollination success of a gynodioecious understory shrub in a gender-specific mode

Conchita Alonso, Carlos M. Herrera

Ecoscience 15 (3), 358-365, (1 September 2008) https://doi.org/10.2980/15-3-3115

KEYWORDS: abiotic conditions, beetle pollination, canopy cover, Daphne laureola, distance to the nearest neighbour, gynodioecy, hemispherical canopy photographs, microhabitat, winter flowering, conditions abiotiques, couvert forestier, Daphne laureola, distance au voisin le plus proche, floraison hivernale, gynodioécie, microhabitat, photographies hémisphériques de la canopée, pollinisation par des coléoptères

No abstract available

Hydrologic controls on nitrogen availability in a high-latitude, semi-arid floodplain

Nicholas J. Lisuzzo, Knut Kielland, Jeremy B. Jones

Ecoscience 15 (3), 366-376, (1 September 2008) https://doi.org/10.2980/15-3-2998

KEYWORDS: advective flow, capillary fringe, hyporheic, nitrogen, riparian, Tanana River, azote, bordure capillaire, flux advectif, hyporhéique, riverain, rivière Tanana

No abstract available

Effects of river connectivity on marsh vegetation community structure and species richness in montane floodplain wetlands in Jasper National Park, Alberta, Canada

Suzanne E. Bayley, Julie K. Guimond

Ecoscience 15 (3), 377-388, (1 September 2008) https://doi.org/10.2980/15-3-3084

KEYWORDS: beaver, disturbance, floodplain, montane wetlands, railway, species richness, castor, chemin de fer, milieux humides de montagne, perturbation, plaine inondable, richesse en espèces

No abstract available

Impact of deer browsing on plant communities in cutover sites on Anticosti Island

Christine Casabon, David Pothier

Ecoscience 15 (3), 389-397, (1 September 2008) https://doi.org/10.2980/15-3-3123

KEYWORDS: browsing, clear-cuts, high density, plant communities, white-tailed deer, broutement, cerf de Virginie, communautés végétales, coupe avec protection de la régénération et des sols, densité élevée

No abstract available

Temperature selection in wood turtles (Glyptemys insculpta) and its implications for energetics

Yohann Dubois, Gabriel Blouin-Demers, Don Thomas

Ecoscience 15 (3), 398-406, (1 September 2008) https://doi.org/10.2980/15-3-3139

KEYWORDS: metabolic rate, optimal temperature, postprandial thermophily, thermoregulation, wood turtles, taux métabolique, température optimale, thermophilie postprandiale, thermorégulation, tortues des bois

No abstract available

Habitat amelioration and associational defence as main facilitative mechanisms in Mediterranean grasslands grazed by domestic livestock

Nadine Boulant, Marie-Laure Navas, Emmanuel Corcket, Jacques Lepart

Ecoscience 15 (3), 407-415, (1 September 2008) https://doi.org/10.2980/15-3-3126

KEYWORDS: Competitive release, direct and indirect effects, facilitation, livestock grazing, Pinus, woody plants, effets directs et indirects, facilitation, pâturage par des herbivores domestiques, Pinus, plantes ligneuses, réduction de la compétition

No abstract available

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