SKU: 53851266143

Seeökosysteme

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Description

SeeökosystemeSeen sind ein zentraler Bestandteil der mitteleuropischen Landschaften mit einem hohen Nutzwert fr Wasserversorgung, Binnenfischerei, Freizeit und Artenschutz. Sie besitzen ein komplexes kosystem, das von vielen unterschiedlichen Faktoren wie Temperatur, Nhrstoffeintrag sowie der Art und Anzahl der im See lebenden Mikroorganismen, Pflanzen und Tiere abhngt. Die Kenntnis aller dieser Faktoren und ihres Zusammenspiels ist die entscheidende

Seen sind ein zentraler Bestandteil der mitteleuropäischen Landschaften mit einem hohen Nutzwert für Wasserversorgung, Binnenfischerei, Freizeit und Artenschutz. Sie besitzen ein komplexes Ökosystem, das von vielen unterschiedlichen Faktoren wie Temperatur, Nährstoffeintrag sowie der Art und Anzahl der im See lebenden Mikroorganismen, Pflanzen und Tiere abhängt. Die Kenntnis aller dieser Faktoren und ihres Zusammenspiels ist die entscheidende Voraussetzung, um das Ökosystem See zu verstehen, zu überwachen und ggf. schützend einzugreifen, wenn dieses aus der Balance gerät. Diese umfassende Übersicht zur Ökologie von Seen basiert auf neuesten Erkenntnissen und zahlreichen wissenschaftlichen Studien aus den vergangenen zwei Jahrzehnten. Zunächst werden die abiotischen Faktoren wie Temperatur, Licht und Sauerstoffverhältnisse und deren Einfluss auf die Gliederung von Seen in unterschiedliche Habitate und ökologische Nischen beschrieben. Weitere Kapitel befassen sich mit den Organismen im See, vom Phytoplankton und Zooplankton bis hin zu höheren Pflanzen und Tieren, deren Populationsbiologie, sowie den daraus entstehenden ökologischen Netzen. Der Einfluss invasiver Arten wird anhand von mehreren Beispielen dokumentiert. Dieses Standardwerk zur Ökologie von Seen erklärt und dokumentiert anhand von umfangreichem Datenmaterial den Stand des Wissens und ist ein zuverlässiger Begleiter für Ausbildung und Beruf.

EAN: 9783527348305
Farbverschnitt: Generell werden die Bücher ohne Farbverschnitt geliefert, auch wenn die Abbildungen einen Farbverschnitt zeigen.
Erscheinungsjahr: 18.09.2024
Autoren: Geller, Walter & Hupfer, Michael
Seitenzahl/Blattzahl: 560
Abbildungen: 80 schwarz-weiße und 160 farbige Abbildungen, 30 schwarz-weiße Tabellen
Themenüberschrift: SCIENCE / Life Sciences / Ecology
Keyword: Biowissenschaften; Chemie; Geowissenschaften; Hydrologie; Umweltforschung; Umweltmanagement; Umweltmanagement, Politik u. -Planung; Wasserchemie; Ökologie; Ökologie / Populationen u. Lebensgemeinschaften; Ökologie / Süßwasser
Fachschema: Ökologie~Binnengewässer / Limnologie~Limnologie~See / Limnologie~Umwelt
Fachkategorie: Limnologie (Süßwasser)~Umweltwissenschaften
Länge: 244 mm
Breite: 170 mm
Höhe: 15 mm
Gewicht: 680 gr
Produktform: Gebunden
Genre: Mathematik/Naturwissenschaften/Technik/Medizin
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SKU: 53851266143

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Mimi
Natrona Heights, US
★★★★★ 4
Truly Helped My Cracked Heels
Color: Original Grey
I didn't include a photo cause they look exactly like their advertisement photo. I so liked the silicon-type heel lining as it kept the heel-repair cream on my heel and did not get soaked up by the sock. But, it is so, so slippery when walking around in them! Take care to be mindful when you set each foot down as the lotion can slide your heel across the sock quite a bit. If these socks were for an elderly person, I would have them only sit while using the sock - no walking around for fear of falling. I have larger ankles and found that having both the top and the bottom hems/elastic, etc. the same size to be quite troublesome and was not a nice feeling or fit on my upper hem that hit my ankle. Don't get me wrong, I am so glad that I got them and I continue to use them and they are helping my horribly-cracked heels greatly, but I find that I have to keep moving the top hem up and down so that it doesn't stay in one position as it cuts in to my ankle. My feedback and advice might be to please make the upper hem somewhat larger than the one that is on the bottom and goes over my actual foot. They really should not be the same circumference...or else make different sizes - S, M, L, etc. That's really my only complaint or "con" to ordering these. I think they are a great concept and I like the fact that I can throw them in the washer and dryer.
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Reviewed in the United States on June 8, 2024
S
Verified Purchase
SC6218
Whiting, US
★★★★★ 5
Actually works, and really well
Color: Original Grey
I bought these because I got them on a great deal and was quite skeptical, but they actually worked exactly as advertised and I saw a huge difference after the first night! I understand why they don’t cover the whole foot like a regular sock (it would be stifling), but it would be incredible if they made a pair that go forward enough to cover the ball of the foot. One pair lasted about 3 weeks before the moisturizer wore out (I did notice a dropoff after washing, so for best results put them on when you’re clean and just for overnight, so you can avoid washing). Apologies for no photos- no one wants to see the before photos. These work so well I’ve just come back to order more even though I’m now paying full price. Definitely, definitely recommend.
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Reviewed in the United States on May 28, 2026
L
Verified Purchase
Liana
Louisville, US
★★★★★ 5
Comfortably and works
Color: Original Grey
❤️ I used these with magnesium lotion on my heals for 3 nights, soaked my feet every morning and cracked heals are gone!
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Reviewed in the United States on April 25, 2026
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Verified Purchase
T. U.
Port Orchard, US
★★★★★ 5
A game changer for deep heel cracks and psoriasis!
Color: Original Grey, Color: Original Grey
If you have deep cracks or psoriasis on your heels, get these they are a total game changer! They hold in Vaseline and topical meds perfectly while I sleep, providing much needed relief without getting all over my sheets. My heels are healing faster and my callouses are softer and don’t split open because the moisture is trapped against the skin all night with the built in gel cushion lining instead of rubbing off. So much hydration. The fact that it is a 2 pack is perfect because while one pair is being washed and drying, you still have a set to wear. Very soft, stretchy, breathable, and easy to sleep in. I highly recommend them!
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Reviewed in the United States on January 31, 2026
J
Verified Purchase
James P McMahon
Omaha, US
★★★★★ 5
Great item!!
Color: Original Grey
These socks actually work!!! No more split skin on my heels!!
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Reviewed in the United States on May 9, 2026

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