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Items (1-20) out of 72890 results

A Data Assimilating Model of the Microbial Ecosystem in the Open Ocean

Description:: Prokaryotic microbes, commonly termed bacteria, are essential components of the ecosystem in the open ocean. They are major primary producers, major diazotrophs that fix dinitrogen …
Year:: 2009
Contributor:: Luo, Yawei (creator); Ducklow, Hugh (director); Friedrichs, Marjorie (reader); Prell, Warren (reader); Vallino, Joseph (reader); Brown University. Division of Biology and Medicine. Ecological and Evolutionary Biology (sponsor)
Genre:: theses
Subject:: Data assimilation; Marine Ecosystem; Model; Dissolved organic matter; Primary production; Dinitrogen fixation; Heterotrophic bacteria; Water--Organic compound content; Nitrogen--Fixation
Language:: English
Collection:: Biology and Medicine; Theses and Dissertations; Biology and Medicine; Ecological and Evolutionary Biology; Theses and Dissertations

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A hierarchical analysis of acoustic trait Variation in birds

Description:: Avian vocalizations are a fundamental component of functional biological diversity. There is also phylogenetic variation in bird vocalization that exists in two distinct forms: Bird …
Year:: 2025
Contributor:: Rezaei, Ahya (creator); Kellner, James (Advisor); Brown University. Biology and Medicine: Ecological and Evolutionary Biology (sponsor)
Genre:: theses
Subject:: Birds; Sound production by animals; Birdsongs; Biodiversity
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Theses and Dissertations

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Abies alba Mill.

Thumbnail for <i>Abies alba</i> <i></i> …

Catalog No.:: PBRU00025471
Family:: Pinaceae
Collector:: W. H. S.
Date Collected:: 1947-12
State/Province:: Massachusetts
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies amabilis (Douglas ex Louden) Douglas ex Forbes

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Catalog No.:: PBRU00052544
Family:: Pinaceae
Collector:: A. Fendler
Date Collected:: 1847-02-23
State/Province:: New Mexico
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies balsamea (L.) Mill.

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Catalog No.:: PBRU00025472
Family:: Pinaceae
Collector:: J. W. Congdon
Date Collected:: 1871-06-30
State/Province:: Vermont
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies balsamea (L.) Mill.

Catalog No.:: PBRU00052545
Family:: Pinaceae
Collector:: H. P. Sartwell
State/Province:: New York
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies balsamea (L.) Mill.

Catalog No.:: PBRU00052546
Family:: Pinaceae
Date Collected:: 1844-06
State/Province:: New York
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies coahuilensis I.M. Johnst.

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Catalog No.:: PBRU00053710
Family:: Pinaceae
Collector:: Zs. Debreczy, Gy. Biro, I. Racz, Yinghao Zhao
Date Collected:: 1994-04-12
State/Province:: Nuevo León
Country:: Mexico
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies concolor (Gord. & Glend.) Lindl. ex Hildebr.

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Catalog No.:: PBRU00052548
Family:: Pinaceae
Collector:: G. Engelmann
Date Collected:: 1874-08
State/Province:: Colorado
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies concolor (Gord. & Glend.) Lindl. ex Hildebr.

Catalog No.:: PBRU00052547
Family:: Pinaceae
Collector:: A. Fendler
Date Collected:: 1847-01-31
State/Province:: New Mexico
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies concolor (Gord. & Glend.) Lindl. ex Hildebr.

Catalog No.:: PBRU00025473
Family:: Pinaceae
Collector:: W H S
Date Collected:: 1947-12
State/Province:: Massachusetts
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies excelsa Poir.

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Catalog No.:: PBRU00053712
Family:: Pinaceae
Date Collected:: 1866
Country:: Russia
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies excelsa Poir.

Catalog No.:: PBRU00053713
Family:: Pinaceae
Date Collected:: 1866
Country:: Russia
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies firma Siebold & Zucc.

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Catalog No.:: PBRU00025475
Family:: Pinaceae
Collector:: Walter H. Snell
Date Collected:: 1948-05-13
State/Province:: Rhode Island
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies firma Siebold & Zucc.

Catalog No.:: PBRU00025474
Family:: Pinaceae
Collector:: Walter H. Snell
Date Collected:: 1950-10
State/Province:: Rhode Island
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies firma Siebold & Zucc.

Catalog No.:: PBRU00025476
Family:: Pinaceae
Collector:: Walter H. Snell
Date Collected:: 1948-05-13
State/Province:: Rhode Island
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies fraseri (Pursh) Poir.

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Catalog No.:: PBRU00046476
Family:: Pinaceae
Collector:: S. K. Harris
Date Collected:: 1953-06-10
State/Province:: Massachusetts
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies grandis (Douglas ex D. Don) Lindl.

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Catalog No.:: PBRU00052550
Family:: Pinaceae
Collector:: Elihu Hall
Date Collected:: 1871
State/Province:: Oregon
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies grandis (Douglas ex D. Don) Lindl.

Catalog No.:: PBRU00052551
Family:: Pinaceae
Collector:: Elihu Hall, J. P. Harbour
Date Collected:: 1862
State/Province:: Colorado
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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Abies grandis (Douglas ex D. Don) Lindl.

Catalog No.:: PBRU00052549
Family:: Pinaceae
Collector:: G. Engelmann
Date Collected:: 1874-08
State/Province:: Colorado
Country:: United States of America
Collection:: Biology and Medicine; Ecological and Evolutionary Biology; Herbarium

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