Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

[Text] / T. A. Vshivkova // Biol. Bull. - 2003. - Vol. 30, Is. 5. - P476-481, DOI 10.1023/A:1025846502636. - Cited References: 27 . - 6. - ISSN 1062-3590РУБ Biology

Аннотация: Food energy expenditures by gypsy moth at different developmental stages under conditions of feeding on larch needles are described. The distribution of total food energy (%) for metabolism, the formation of exuvia (throughout ontogeny), and the formation of an adult insect is assessed. The proportion of food energy lost with excrements over the entire period of feeding is the same (58%) in females and males. The assimilated part of food energy is distributed differently: energy expenditures for the formation of exuvia and adult insects are greater in females than in males. The proportion of food energy expended for metabolism throughout the insect life span is approximately 30% in both females and males.

Полный текст,
WOS,
Scopus,
Scopus

Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Vshivkova, T.A.

[Text] / B. D. Kloeppel [et al.] // Oecologia. - 1998. - Vol. 114, Is. 2. - P153-159, DOI 10.1007/s004420050431. - Cited References: 45 . - 7. - ISSN 0029-8549РУБ Ecology

Аннотация: Larches (Larix spp.), deciduous conifers, occur in the northern hemisphere in cold-temperate and boreal climates - an environment normally thought to favor ever-green tree species. We compare foliar carbon isotope discrimination (Delta), instantaneous water use efficiency, total foliar nitrogen concentration, and specific leaf area (for a subset of sites) between Larix spp. and co-occurring evergreen conifers at 20 sites throughout the natural range of larches. Except for Larix occidentalis in the xeric Intermountain West, USA, Delta is significantly (P < 0.05) greater for larches than co-occurring evergreen conifers at 77% of the sites, suggesting that larches use water less efficiently. At elevations greater than 3000 m, the Delta of Lar ix-spp. and co-occurring conifers converge, suggesting that water is not the limiting resource. Foliar nitrogen concentration and specific leaf area are two ecophysiological characteristics that are positively correlated with high photosynthetic capacity. Foliar nitrogen concentration is significantly greater for larches than evergreen conifers at 88% of the sites and specific leaf area is approximately three times greater for larches than co-occurring conifers. Future studies should examine the potential effect that global warming may have on the distribution of larch forests because the water use efficiency of larches is commonly less than cooccurring evergreen conifers and the boreal and high-latitude environments are likely to experience the greatest climate warming.

Полный текст,
WOS,
Scopus

Держатели документа:
Univ Wisconsin, Dept Forest Ecol & Management, Madison, WI 53706 USA
Univ Wisconsin, Dept Chem, Madison, WI 53706 USA
Russian Acad Sci, Sukachev Forest Inst, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Kloeppel, B.D.; Gower, S.T.; Treichel, I.W.; Kharuk, S...