Titlebook: European Large Lakes; Ecosystem changes an Tiina N?ges,Reiner Eckmann,Markku Viljanen Book 2008 Springer Science+Business Media B.V. 2008 E

防止

變態(tài)

慢慢啃

https://doi.org/10.1007/978-1-4020-8379-2Eutrophication; Large Lake Ecology; Large Lake Modelling; Larke Lake Management; Remote Sensing; Sediment

手段

e lake ecosystems.Reviews food web interactions and dynamicsLarge lakes are important because of their size and ecological distinctiveness as well as their economic and cultural value. Optimal management of them requires a proper understanding of anthropogenic impacts both on the lake ecosystems as

DAMP

Jochen Winkelmann,M. D. Lechnerconditions at the time of gyttja accumulation. In the uppermost portion of the gyttja sequence the pollen and diatom successions indicate a short period of land emergence when swampy conditions prevailed in the surroundings.

種子

Incorruptible

Pollen, diatom and plant macrofossil assemblages indicate a low water level phase of Lake Peipsi at conditions at the time of gyttja accumulation. In the uppermost portion of the gyttja sequence the pollen and diatom successions indicate a short period of land emergence when swampy conditions prevailed in the surroundings.

Vulnerable

The impact of the invasive Ponto-Caspian amphipod , on littoral communities in Lithuanian lakess variation) was lower in the places with well-established .. A detrimental impact was observed upon the native isopod . and a negative correlation with most of the higher taxa of native invertebrates. In the invaded lake habitats that favour ., a change in community structure and a decrease in diversity up to twofold or more are to be expected.

Psa617

Spongy-Bone