Water relations of tetrapod integument

Water relations of tetrapod integument.

The vertebrate integument represents an evolutionary compromise between the needs for mechanical protection and those of sensing the environment and regulating the exchange of materials and energy. Fibrous keratins evolved as a means of strengthening the integument while simultaneously providing a structural support for lipids, which comprise the principal barrier to cutaneous water efflux in t...

The Integument of Water-walking Arthropods: Form and Function

We develop a coherent view of the form and function of the integument of water-walking insects and spiders by reviewing biological work on the subject in light of recent advances in surface science. Particular attention is given to understanding the complex nature of the interaction between water-walking arthropods and the air–water surface. We begin with a discussion of the fundamental princip...

Tetrapod phylogeny

' Deparlmenl qf Herpelology, California Academy of Sciences, San Francisco, CA 94118, U.S.A., ^Museum of Natural Sciences and Department of Biology, Louisiana State University, Baton Rouge, LA 70803, U.S.A., ^Department of ^oology and Museum of Vertebrate ^oology. University of California, Berkeley, CA 94720, U.S.A., 'Museum of ^oology and Department of Biology, University of Michigan, Ann Arbo...

Water Relations: Habitats

Water-saving irrigation strategies affect tuber water relations and nitrogen content of potatoes

The dynamic and static deficit (DDI, SDI), partial root drying (DPRD, SPRD) and full (FI)irrigation strategies were applied in Agria and Ramos potato cultivars in a semi-arid area. FIreceived 100% of the potential evapotranspiration (ET); SDI and SPRD received 75% of ETduring the growth period; DDI and DPRD received 90% of ET in the first third, 75% of ET inthe second third and 50% of ET in the...