By Niko Tinbergen

"This ebook describes the actions & a few of the discoveries of a small variety of naturalists who've joined me, at one time or one other, within the pursuit of our universal pastime; the learn of the behaviour of animals of their usual setting. It covers approximately 25 years of organic sightseeing & exploration & attempts to inform, with out using technical language, a narrative of our box paintings and the thrill of discovery."—Niko Tinbergen

... I learn this publication as undefined. It prompted my brain as few others had. i have been recommending it ever considering the fact that. you will not be disappointed

Table of contents:
Preface vii

1. The Bee-Hunters of Hulshorst 1
2. Arctic Interlude 19
3· Snow Buntings and Phalaropes 43
4· again to the Bee-Hunters 60
5. quicker than Swifts 83
6. The Sand Wasps 103
7. reviews of Camouflage 125
8. Defence via color 155
9· Bark with Wings 176
10. Camberwell Beauties 193
11. Cliff Dwellers 200
12. Black-headed Gulls, 1 218
13. Black-headed Gulls, 2 236
14. Eider Invasion 252
15. bugs and vegetation 268
16. Curious Naturalists 285

References 292
Index 296

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Sandstone. Often, soil cover and the weathered zone provide conditions similar to that present in unconsolidated rock. Waste rock dumps are also similar to unconsolidated rock with respect to water flow and the interaction between the air in the underground pores and the minerals. Of course, the relationship between groundwater and pit lakes is a two-way street; pit lakes are influenced by groundwater, but also influence groundwater. For example, evaporation from a lake surface and surficial outflows of pit lakes can cause a long term depression of the groundwater surface in the vicinity of the lakes.

2001; Wisotzky and Obermann 2001). Consequently, lake water chemistry has to be generalized with care and several exceptions might exist. Pit Lake Water Chemistry The first examples of strip mine pit lake water chemistry were from hard coal mining in the USA and were published by Campbell and Lind (1969), Campbell et al. (1964), and Parsons (1964), based on initial studies of Crawford (1942; cited in Campbell et al. 1964) and Heaton (1951, cited in Campbell et al. 1964) from coalfields in the Cedar Creek region of Missouri.

In pit lakes resulting from coal and lignite mining, only iron and aluminum reach concentrations high enough to form relevant buffering systems. Calcium, sodium, and potassium (Fig. 17a) do not show a clear concentration dependence on pH. This may be due to the formation of secondary minerals, such as gypsum and jarosite. 1). For at least some of the Australian pit lakes, the diversion of highly saline water into lakes from the local rivers during the first flush at the beginning of the wet season would have likely disrupted any relationship between these cations and pH.

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