標(biāo)題: Titlebook: Energetics of Desert Invertebrates; Harold Heatwole Book 1996 Springer-Verlag Berlin Heidelberg 1996 Anpassung, Wüsten.Deserts.Energie, Wi [打印本頁] 作者: Gullet 時間: 2025-3-21 19:17
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作者: 悠然 時間: 2025-3-21 20:47 作者: 現(xiàn)暈光 時間: 2025-3-22 03:44
https://doi.org/10.1007/978-3-7091-8081-5ically 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.作者: 安慰 時間: 2025-3-22 07:50
Dampf und W?rme in der Seifenindustrie intermittent resources and to maintain larger population densities in habitats with low levels of food availability than otherwise would be possible (Pough 1980). Deserts, being unpredictable and offering scant resources, are just the kind of environment in which ectothermism can be an asset.作者: incision 時間: 2025-3-22 10:33 作者: 完整 時間: 2025-3-22 14:35 作者: 完整 時間: 2025-3-22 18:01 作者: 翻動 時間: 2025-3-22 21:14 作者: tangle 時間: 2025-3-23 02:46
Book 1996dormancy until better conditions return. Still others store food during plenty and retreat underground during less favorable times..The adaptive modes of husbanding scarce energy resources are diverse and lead to an appreciation of the intricate interactions of animals living near their environmental limits.作者: xanthelasma 時間: 2025-3-23 06:05 作者: cacophony 時間: 2025-3-23 11:45 作者: 債務(wù) 時間: 2025-3-23 15:56
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.作者: visual-cortex 時間: 2025-3-23 21:23
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.作者: 用手捏 時間: 2025-3-23 22:55
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)作者: profligate 時間: 2025-3-24 05:34 作者: 共和國 時間: 2025-3-24 06:33 作者: 同步信息 時間: 2025-3-24 13:58 作者: creatine-kinase 時間: 2025-3-24 16:23 作者: HEAVY 時間: 2025-3-24 19:11
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).作者: 易受刺激 時間: 2025-3-25 01:08
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.作者: Parameter 時間: 2025-3-25 03:36 作者: calorie 時間: 2025-3-25 11:35 作者: 有節(jié)制 時間: 2025-3-25 15:10
https://doi.org/10.1007/978-3-7091-5418-2tary techniques variously have been termed ambush or sit-and-wait strategies; more mobile ones have been called cruise searching, widely ranging searching, active foraging or simply foraging. Some species may employ either type, depending on circumstances (Muma 1966; Cloudsley-Thompson 1991). Interm作者: tympanometry 時間: 2025-3-25 16:59
Dampf und W?rme in der Seifenindustrieermogenesis and their total energy demands are reduced accordingly. Their metabolic rates are lower and a greater proportion of their food can go directly into such vital functions as activity, growth, fat storage and reproduction than is true of endotherms (birds and mammals). Invertebrates’ greate作者: hypertension 時間: 2025-3-25 22:06 作者: faucet 時間: 2025-3-26 01:42
https://doi.org/10.1007/978-3-7091-3949-3must be adapted to deal with episodes of food shortage and to exploit temporary abundances. One way is to reduce energy expenditure during lean times by becoming dormant (see Chap. 6). Another is to synchronize activities with heavy energy requirements, such as reproduction, with periods of peak ava作者: acetylcholine 時間: 2025-3-26 05:47
https://doi.org/10.1007/978-3-7091-8081-5imals. Production is reduced and concentration of resources may be too low for an organism to maintain vital activities. All of this means that periodically energy is scarce, the time available for its acquisition is limited, and activity may impose excessive energetic expenditures. Clearly, persist作者: tackle 時間: 2025-3-26 11:17 作者: HACK 時間: 2025-3-26 14:47 作者: BRUNT 時間: 2025-3-26 19:21 作者: 無關(guān)緊要 時間: 2025-3-27 00:14 作者: 無表情 時間: 2025-3-27 01:48 作者: FLIP 時間: 2025-3-27 06:03 作者: 金絲雀 時間: 2025-3-27 10:49
Introduction,nance and reproduction, and (3) transfer it to other species. Clearly, this topic covers a wide range of biological activities at the biochemical, physiological, individual, population and community levels. The present volume deals with the interaction of animals and environment in energetic exchang作者: 可用 時間: 2025-3-27 14:14
Foraging: The Acquisition of Energy,tary techniques variously have been termed ambush or sit-and-wait strategies; more mobile ones have been called cruise searching, widely ranging searching, active foraging or simply foraging. Some species may employ either type, depending on circumstances (Muma 1966; Cloudsley-Thompson 1991). Interm作者: 使乳化 時間: 2025-3-27 17:48
Metobolism: The Expenditure of Energy,ermogenesis and their total energy demands are reduced accordingly. Their metabolic rates are lower and a greater proportion of their food can go directly into such vital functions as activity, growth, fat storage and reproduction than is true of endotherms (birds and mammals). Invertebrates’ greate作者: hazard 時間: 2025-3-28 00:22 作者: locus-ceruleus 時間: 2025-3-28 03:22
Storage: The Hoarding of Energy,must be adapted to deal with episodes of food shortage and to exploit temporary abundances. One way is to reduce energy expenditure during lean times by becoming dormant (see Chap. 6). Another is to synchronize activities with heavy energy requirements, such as reproduction, with periods of peak ava作者: 憂傷 時間: 2025-3-28 08:43 作者: 恩惠 時間: 2025-3-28 14:20 作者: Arctic 時間: 2025-3-28 15:21
Community Dynamics: The Flow of Energy,links in the overall exchanges within a biotic community. In the present chapter, the flow of energy among species within invertebrate assemblages and between them and other components of desert communities is examined. Energy flow is dependent on community structure and dynamics. These topics will 作者: CREEK 時間: 2025-3-28 22:15 作者: 不妥協(xié) 時間: 2025-3-29 02:20 作者: BURSA 時間: 2025-3-29 06:20 作者: Explosive 時間: 2025-3-29 09:14
