Air pollution has made the atmosphere less transparent and more reflective, and high levels of terrestrial illumination have washed out the stars overhead — a phenomenon called "sky glow".
This paper presents an experimental design for quantifying the transfer of chemicals at low trophic levels of terrestrial ecosystems.
The highest levels of terrestrial inputs along with increasing and variable aquatic productivity occur during the Lateglacial to early Holocene interval between 16,500 and 8800 cal yr BP.
We demonstrate isotopic evidence for substantive incorporation of salmon-derived nitrogen into multiple trophic levels of terrestrial litter-based invertebrates from two salmon bearing watersheds.
Salmon-derived nitrogen has been documented in multiple trophic levels of terrestrial invertebrates on our study watersheds [ 6], and it is possible that salmon nutrient subsidies have many direct and indirect effects on invertebrate populations.
It is not until the level of the terrestrial vertebrates amphibians, reptiles, birds, and mammals that a complete immune system with thymus, spleen, bone marrow, and lymph nodes is present and IgM and IgG antibodies are made.
Attermeyer, K., Premke, K., Hornick, T., Hilt, S. & Grossart, H.-P. Ecosystem-level studies of terrestrial carbon reveal contrasting bacterial metabolism in different aquatic habitats.
These findings are advantageous for understanding the health levels of the terrestrial ecosystems of the shallow lakes in this region and the degree of interference from human activities, as well as for providing a theoretical basis for the determination of criteria.
(eds Reynolds MH et al). Predicting sea-level rise vulnerability of terrestrial habitat and wildlife of the Northwestern Hawaiian Islands.
