Showing 1 - 10 of 38
To characterize the genetic structure and diversity of Pinus cembra L. populations native to two disjunct geographical areas, the Alps and the Carpathians, and to evaluate the rate of genetic differentiation among populations.
Persistent link: https://www.econbiz.de/10010434978
We asked if the genetic diversity of Saponaria bellidifolia (a habitat specialist plant) and the species diversity of its habitat are driven by parallel landscape level processes in an island-like system of limestone outcrops in the Carpathian Mountains. We tested the relationship of these two...
Persistent link: https://www.econbiz.de/10010434974
Vizsgálatunk célja a közép-magyarországi Vitis sylvestris élőhelyek állapotfelmérése, összehasonlításban, a balkáni régióban található ligeti szőlő élőhelyekkel. 17 hazai valamint 17 bulgáriai egyedet hasonlítottunk össze élőhelyi jellemzők és hajtás morfológia...
Persistent link: https://www.econbiz.de/10010125258
A klímaváltozás ökológiai hatásainak elemzésével kapcsolatos tudományos eredményeink megközelítési módjukat tekintve az alábbi hat fő csoportba oszthatók: 1. Az elméleti várakozások tisztázása stratégiai modellezéssel. 2. Lehetséges hatások mértékének behatárolása...
Persistent link: https://www.econbiz.de/10010125257
Persistent link: https://www.econbiz.de/10010352926
Present paper is a review on the Ráckeve-Soroksár Danube in ecological standpoint. The goal of this study is to collect and evaluate all of available publications in that conception, concerning this Danube arm. Phytoplankton, zooplankton, macroinvertebrates, vertebrates, macrophytes and also...
Persistent link: https://www.econbiz.de/10010352935
Several methods and indicators can be used to evaluate the coenological state of a given habitat, the ones which can be created simply, quickly, standardizably and reliably and which can be used to exactly quantify the state of a given habitat in point of numbers can be of outstanding practical...
Persistent link: https://www.econbiz.de/10010352958
Climate change has a great impact on the build and the work of natural ecosystems. Disappearance of some population or growth of the number in some species can be already caused by little change in temperature. A Theoretical Ecosystem Growth Model was investigated in order to examine the effects...
Persistent link: https://www.econbiz.de/10010352959
Our method is presented with displaying time series, consisting of the daily amount of precipitation of 100 years, which has meant a separate challenge, as the precipitation data shows significant deviations. By nowadays, mankind has changed its environment to such an extent that it has a...
Persistent link: https://www.econbiz.de/10010352960
In this paper we present the composition, seasonal dynamics and fluctuations in diversity of the phytoplankton in the Danube River over 24 years. Weekly samplings were conducted at one section of the river at Göd, in the 1669 river kilometer segment. The change in the phytoplankton community...
Persistent link: https://www.econbiz.de/10010352961