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1. |
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UNINA9910249958903321 |
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Autore |
Svensson-Coelho Maria |
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Titolo |
Diversity, prevalence, and host specificity of avian Plasmodium and Haemoproteus in a Western Amazon assemblage / / Maria Svensson-Coelho, John G. Blake, Bette A. Loiselle, Amanda S. Penrose, Patricia G. Parker, and Robert E. Ricklefs |
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Pubbl/distr/stampa |
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The American Ornithologists' Union |
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Disciplina |
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Soggetti |
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Passeriformes - Parasites - Ecuador |
Host-parasite relationships |
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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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Sommario/riassunto |
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We used PCR and DNA sequencing to screen for haemosporidian parasites (Haemoproteus and Plasmodium) in 2,488 individual birds from 104 species and 22 families, primarily understory suboscine passerines, captured in a lowland Amazonian forest in Ecuador as a first major step to understanding the transmission dynamics of this cosmopolitan group of parasites in this region. To assess diversity of avian haemosporidia in our study site, we identified putative evolutionary lineages of haemosporidia using the mtDNA gene cytochrome b (cyt b). We sampled birds over 9 years, which allowed us to assess annual variation in haemosporidian prevalence. Additionally, we investigated among-species variation in prevalence and tested relationships between traits of hosts and prevalence of haemosporidia in a comparative analysis. Finally, we estimated host specificity of each recovered parasite lineage and compared several indices with different details of host information. Prevalence of haemosporidia was 21.7% when we combined years and ranged from 5.6% to 91.2% among well-sampled host species. Prevalence varied significantly among years, ranging from 14.5% in 2006 to 33.2% in 2009. The hypothesis that haemosporidian prevalence increases with level of sexual dimorphism |
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and decreases with foraging height of a host species received some support. We identified 65 unique cyt b haplotypes, some of which we considered variation within the same evolutionary lineage. In total, we defined 45 putative evolutionary lineages based on 363 identified parasites. Fourteen haplotypes were identical to haplotypes found elsewhere, sometimes on different continents. Host specificity varied greatly among parasite lineages. Collectively, our findings indicate that within a local Neotropical assemblage of avian haemosporidia, community organization is highly complex and part of this complexity can be attributed to differences in host life history; diversity, particularly of Plasmodium spp., is high; and individual parasite lineages can differ greatly in both abundance and number of host species. |
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2. |
Record Nr. |
UNINA9910796000703321 |
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Autore |
Jacobs-Huey Lanita <1971-> |
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Titolo |
From the kitchen to the parlor [[electronic resource] ] : language and becoming in African American women's hair care / / Lanita Jacobs-Huey |
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Pubbl/distr/stampa |
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Oxford ; ; New York, : Oxford University Press, 2006 |
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ISBN |
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Descrizione fisica |
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Collana |
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Studies in language and gender |
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Disciplina |
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Soggetti |
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Hairdressing of African Americans |
Hair - Social aspects - United States |
Hair - Care and hygiene - United States |
African American women - History |
African American women - Race identity |
African American women - Social life and customs |
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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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Nota di bibliografia |
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Includes bibliographical references (p. 153-172) and index. |
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3. |
Record Nr. |
UNINA9910807775403321 |
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Autore |
Grise-Owens Erlene |
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Titolo |
Activating a teaching-learning philosophy : a practical guide for educators / / Erlene Grise-Owens, J. Jay Miller, Larry W. Owens |
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Pubbl/distr/stampa |
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Alexandria, Virginia : , : CSWE Press, , [2018] |
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©2018 |
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ISBN |
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Descrizione fisica |
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1 online resource (138 pages) |
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Disciplina |
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Soggetti |
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Learning |
Teaching |
Education - Philosophy |
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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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Nota di contenuto |
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Introduction and purpose of this book -- What is a teaching philosophy, and why do I need one? -- How do I articulate my philosophy? -- Now that I have one, how do I implement my teaching philosophy? -- OK! I'm implementing my philosophy; how do I evaluate it? -- And, reactivate! |
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Sommario/riassunto |
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This how-to manual provides a structured framework for developing a comprehensive teaching learning philosophy from articulation through implementation to evaluation and then reactivation. Using professional literature and teaching learning experiences, the authors provide pragmatic steps for using a grounded philosophy to inform, engage, and assess teaching learning. They advocate an integrated teaching learning philosophy to promote ongoing commitment, engaged competency, and meaningful purpose in practice for educators. |
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