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1

The role of climatic variables for estimating probability of abundance of tree species

100%
Antunez P., Wehenkel C., Lopez-Sanchez C. A., Hernandez-Diaz J. C.
Polish Journal of Ecology
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2017
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tom 65
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nr 3
We analyzed the influence of climatic variables on the abundance of native tree species in 1,490 sampling plots systematically distributed in the Sierra Madre Occidental (state of Durango, Northwestern Mexico, 26°50′ and 22°17′N and 107°09′ and 102°30′W). We used the Weibull distribution and the finite Gaussian mixture model to study the climatic limits of 15 tree species in relation to seven variables thought to affect species abundance. We found that although they may occur in the same geographical region, some species display a wider range of ecological tolerance than others. Of the 15 species under study, only two (Quercus magnoliifolia and Q. arizonica) can be considered generalists in relation to some climatic variables, while the other 13 species behaved as specialists, implying a narrower range of distribution. The analytical techniques used enabled us to demarcate the zones in which the probability of abundance of each species is highest in relation to the climate variables considered. The findings could be used to help define climate for the 15 studied tree species of economic and ecological interest.
2

Climatic response of tracheid features of Picea meyeri along altitude gradient of Luyashan Mountains of North China

100%
Wang M., Jiang Y., Zhang W., Dong M., Kang M., Xu H.
Polish Journal of Ecology
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2017
|
tom 65
|
nr 4
Changing localized environmental conditions along altitude gradients could modify the responses of tree xylem structures to climate variations. To explore how trees adapt to local environment and respond to climate variants, we analysed the variation of Picea meyeri xylem tracheid features and the relationships with climate variables along an altitude gradient (1970, 2240, 2490 and 2650 m above sea level) of the Luyashan Mountains in the North China. The results mainly indicated the following: (1) tracheid number and diameter of P. meyeri showed significant differences among the four sites along the altitude gradient; (2) trees at site 2 (2240 m) and site 3 (2490 m) are similar in age, but the xylem tracheid number and diameter of these trees were significantly different, which may indicate different functional adaptation; (3) the relationships between xylem features' residual chronologies and the monthly climate data were inconsistent along altitude gradients, which indicated that the limiting factor of P. meyeri growth along the altitude gradients, shifted from drought stress at lower altitudes to low-temperature stress at higher altitudes.
3

Investigation of the canopies evapotranspiration processes in extreme soil moisture conditions

84%
Etropolski C., Kirova M., Mikova A.
Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Melioracja
|
1990
|
nr 35
4

Contemporary changes of Baltic Sea ice

84%
Girjatowicz J. P., Kozuchowski K. M.
Geographia Polonica
|
1995
|
tom 65
5

Understanding and assessments of some aspects of climate variation in Poland

84%
Kozuchowski K.
Geographia Polonica
|
1996
|
tom 67
6

The pattern of the Holocene climatic variations in Central Europe based on various geological records

84%
Starkel L.
Quaestiones Geographicae. Zeszyt Specjalny
|
1995
|
tom 04
7

Variability in soluble protein content in kernels of nuts obtained from different seedlings [Juglans regia L.]

67%
Sharma S. D.
Fruit Science Reports
|
1992
|
tom 19
|
nr 2
8

Aerophytologie comparee de deux milieux urbains de l'hemisphere nord [Montreal et banlieue parisienne]

67%
Boussioud-Corbieres F.
Fragmenta Floristica et Geobotanica
|
1996
|
tom 41
|
nr 2
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