Titlebook: Energetics of Desert Invertebrates; Harold Heatwole Book 1996 Springer-Verlag Berlin Heidelberg 1996 Anpassung, Wüsten.Deserts.Energie, Wi

cacophony

債務(wù)

Quiescence and Dormancy: Waiting Out Energy Shortages,ically energy is scarce, the time available for its acquisition is limited, and activity may impose excessive energetic expenditures. Clearly, persistence of a species in such situations would be enhanced by any mechanism that reduces its use of energy and improves its chances of surviving to the next fall of rain.

visual-cortex

https://doi.org/10.1007/978-3-7091-3949-3ilability of food (see Chap. 4). A third, discussed in the present chapter, is to use periods of food excess as buffers against times of scarcity, and in that way make energy more constantly available.

用手捏

Seismic Modelling and Inversionbe treated briefly before turning to a consideration of the amounts of energy involved and the routes it follows through the community. A more detailed treatment of some aspects of the community ecology of desert invertebrates is provided by Polis (1991a,b)

profligate

共和國

同步信息

creatine-kinase

HEAVY

Budgeting of Energy,cogen. Some is used in production of young. Much of it Fuels metabolism and is expended in bodily maintenance. Finally, what is not assimilated is lost in the faeces. An animal’s individual energy budget can be expressed as:.where I=Ingestion, A=Assimilation and E=Egestion (faeces and urine).

易受刺激

Migration and Nomadism: Tracking Energy Sources,adism is a strategy traditionally employed by desert tribes and their grazing domestic animals, and among wild animals is more characteristic of vertebrates, especially birds and large mammals, than it is of invertebrates. However, some desert invertebrates also track shifting environmental resources.