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Record Nr. |
UNINA9910480759503321 |
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Autore |
Allan J. David |
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Titolo |
Stream Ecology [[electronic resource] ] : Structure and function of running waters / / by J. David Allan |
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Pubbl/distr/stampa |
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Dordrecht : , : Springer Netherlands : , : Imprint : Springer, , 1995 |
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ISBN |
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0-412-35530-2 |
94-011-0729-7 |
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Edizione |
[1st ed. 1995.] |
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Descrizione fisica |
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1 online resource (XII, 388 p.) |
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Disciplina |
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Soggetti |
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Applied ecology |
Aquatic ecology |
Community ecology, Biotic |
Nature conservation |
Water pollution |
Applied Ecology |
Freshwater & Marine Ecology |
Community & Population Ecology |
Nature Conservation |
Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Bibliographic Level Mode of Issuance: Monograph |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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1 Channels and flow -- 2 Streamwater chemistry -- 3 Physical factors of importance to the biota -- 4 Autotrophs -- 5 Heterotrophic energy sources -- 6 Trophic relationships -- 7 Predation and its consequences -- 8 Herbivory -- 9 Competitive interactions -- 10 Drift -- 11 Lotic communities -- 12 Organic matter in lotic ecosystems -- 13 Nutrient dynamics -- 14 Modification of running waters by humankind -- References. |
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Sommario/riassunto |
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Running waters are enormously diverse, ranging from torrential mountain brooks, to large lowland rivers, to great river systems whose basins occupy subcontinents. While this diversity makes river |
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ecosystems seem overwhelmingly complex, a central theme of this volume is that the processes acting in running waters are general, although the settings are often unique. The past two decades have seen major advances in our knowledge of the ecology of streams and rivers. New paradigms have emerged, such as the river continuum and nutrient spiraling. Community ecologists have made impressive advances in documenting the occurrence of species interactions. The importance of physical processes in rivers has attracted increased attention, particularly the areas of hydrology and geomorphology, and the inter-relationships between physical and biological factors have become better understood. And as is true for every area of ecology during the closing years of the twentieth century it has become apparent that the study of streams and rivers cannot be carried out by excluding the role of human activities, nor can we ignore the urgency of the need for conservation. These developments are brought together in Stream Ecology: Structure and function of running waters, designed to serve as a text for advanced undergraduate and graduate students, and as a reference book for specialists in stream ecology and related fields. |
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2. |
Record Nr. |
UNINA9910459480103321 |
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Titolo |
Language and literacy development in bilingual settings [[electronic resource] /] / edited by Aydin Yücesan Durgunoglu, and Claude Goldenberg |
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Pubbl/distr/stampa |
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The New York, : Guilford Press, 2010 |
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ISBN |
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1-282-88649-5 |
9786612886492 |
1-60623-956-2 |
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Descrizione fisica |
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1 online resource (384 p.) |
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Collana |
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Challenges in language and literacy |
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Altri autori (Persone) |
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DurgunoğluAydin Yücesan |
GoldenbergClaude <1954-> |
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Disciplina |
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Soggetti |
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English language - Study and teaching - Foreign speakers |
Education, Bilingual - United States |
Language arts |
Bilingualism in children |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Front Matter; Contents; Chapter 1; Chapter 2; Chapter 3; Chapter 4; Chapter 5; Chapter 6; Chapter 7; Chapter 8; Chapter 9; Chapter 10; Chapter 11; Chapter 12; Chapter 13; Index |
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Sommario/riassunto |
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Grounded in state-of-the-art research, this book explores how English language learners develop both the oral language and literacy skills necessary for school success. Chapters examine the cognitive bases of English acquisition, and how the process is different for children from alphabetic (such as Spanish) and nonalphabetic (such as Chinese) language backgrounds. The book addresses a key challenge facing educators and clinicians: identifying students whose poor English skills may indicate an underlying impairment, as opposed to still-developing language proficiency. Implications for |
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