@misc{Ulrich_Werner_Temporal_1999,
 author={Ulrich, Werner},
 editor={Polish Academy of Sciences. Institute of Ecology},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Dziekanów Leśny},
 howpublished={online},
 year={1999},
 language={eng},
 abstract={The stability of the community structure of the parasitic Hymenoptera of a beech forest on limestone (northern FRG) was studied. The annual number of species was around 350 to 450 with a high degree of species turnover. In a comparison of the study years the species identity of the abundant species turned out to be low and their dominance rank order was highly variable. The yearly sequence of emergence appeared to be constant. Density fluctuations of the species were high and positively correlated with mean density and negatively with the weight of the species. No clear common temporal trends in density could be detected. Host guild, stratum of host attack or number of generations did not detectably influence the degree of density fluctuations of the species. The findings are discussed in the context of concepts of stability and classifications of communities and it is concluded that this hymenopteran community is best described as non-interactive and non-stable.},
 type={Text},
 title={Temporal stability of community structure of the parasitic Hymenoptera in a beech forest on limestone},
 URL={http://www.rcin.org.pl/Content/106122/PDF/WA058_90900_P2840-T47_Eko-Pol-A-Nr-3.pdf},
 volume={47},
 number={3},
 journal={Polish Journal of Ecology},
 publisher={Polish Academy of Sciences. Institute of Ecology. Publishing Office},
 keywords={Hymenoptera, parasitoids, community, stability, beech forest, density fluctuation},
}