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Cal Poly Humboldt

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Articles 61 - 90 of 130

Full-Text Articles in Botany

North America Floras, Manuals, & Checklist: A Bibliography, James P. Smith Jr Apr 2019

North America Floras, Manuals, & Checklist: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


Vascular Plants Of The Coastal Dunes Of Humboldt County, California, James P. Smith Jr Apr 2019

Vascular Plants Of The Coastal Dunes Of Humboldt County, California, James P. Smith Jr

Botanical Studies

No abstract provided.


Checklist Of The Vascular Plants Of The Trinity Alps, James P. Smith Jr, John O. Sawyer Jr. Apr 2019

Checklist Of The Vascular Plants Of The Trinity Alps, James P. Smith Jr, John O. Sawyer Jr.

Botanical Studies

No abstract provided.


African Affinity Mask, Giselle M. Strauss Mar 2019

African Affinity Mask, Giselle M. Strauss

Toyon: Multilingual Literary Magazine

N/A


The Vascular Plant Flora Of Oklahoma - A Bibliography, James P. Smith Jr Jan 2019

The Vascular Plant Flora Of Oklahoma - A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


California Floras, Manuals, And Checklists: A Bibliography, James P. Smith Jr Jan 2019

California Floras, Manuals, And Checklists: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


Grasses Of The Conterminous United States: Persons After Whom Grasses Have Been Named, James P. Smith Jr Jan 2019

Grasses Of The Conterminous United States: Persons After Whom Grasses Have Been Named, James P. Smith Jr

Botanical Studies

No abstract provided.


Ectomycorrhizal Fungal Community Assembly On Seedlings Of A Neotropical Monodominant Tree, Carolyn Delevich Jan 2019

Ectomycorrhizal Fungal Community Assembly On Seedlings Of A Neotropical Monodominant Tree, Carolyn Delevich

Cal Poly Humboldt theses and projects

Formation of ectomycorrhizae may facilitate early seedling survival of ectomycorrhizal tree species due to enhanced nutrient acquisition. This could be especially important in heavily shaded understories of tropical monodominant forests where host plant photosynthetic capacity is limited. Little information is available on ectomycorrhizal (ECM) fungal colonization or community development of monodominant seedling cohorts, which have high survival rates. Following a 2016 mast seeding event, we sequentially measured percent colonization and species composition of ECM fungi on live and recently dead seedlings of the tropical monodominant tree Dicymbe corymbosa. We also compared seedling ECM fungi to those of nearby adult …


Seaweed Community Structure Along Environmental Gradients In An Ocean-Dominated Estuary, Saskia A. Raether Jan 2019

Seaweed Community Structure Along Environmental Gradients In An Ocean-Dominated Estuary, Saskia A. Raether

Cal Poly Humboldt theses and projects

Macrophyte community structure in estuaries that have been modified by the addition of hard substrata are poorly documented, especially in relation to the physical and environmental gradients that shape them. Therefore, this study describes the summer macrophyte flora that occurs on hard and soft substrata throughout Humboldt Bay, CA and tests how the macrophyte communities correlate to measures of horizontal and vertical environmental gradients. The percent cover of macroalgae, vascular plants, cyanobacteria, lichens, diatom film, sessile invertebrates, and substratum types were quantified during the summers of 2017 and 2018 at eleven intertidal locations in the bay and outer coast. Horizontal …


Checklist Of The Vascular Plants Of Redwood National Park, James P. Smith Jr Sep 2018

Checklist Of The Vascular Plants Of Redwood National Park, James P. Smith Jr

Botanical Studies

No abstract provided.


Vascular Plants Of Eagle Creek Campground, Trinity County, James P. Smith Jr Sep 2018

Vascular Plants Of Eagle Creek Campground, Trinity County, James P. Smith Jr

Botanical Studies

No abstract provided.


Checklist Of The Vascular Plants Of The Walker Ridge And Bear Valley Area, Lake And Colusa Counties, James P. Smith Jr. Jan 2018

Checklist Of The Vascular Plants Of The Walker Ridge And Bear Valley Area, Lake And Colusa Counties, James P. Smith Jr.

Botanical Studies

No abstract provided.


Vascular Plants Of Bear Valley (Colusa County, California), James P. Smith Jr Jan 2018

Vascular Plants Of Bear Valley (Colusa County, California), James P. Smith Jr

Botanical Studies

No abstract provided.


Albert Spear Hitchcock, James P. Smith Jr Jan 2018

Albert Spear Hitchcock, James P. Smith Jr

Botanical Studies

No abstract provided.


The Herbarium, James P. Smith Jr Jan 2018

The Herbarium, James P. Smith Jr

Botanical Studies

No abstract provided.


Mary Agnes Chase, James P. Smith Jr Jan 2018

Mary Agnes Chase, James P. Smith Jr

Botanical Studies

No abstract provided.


Vascular Plants Of Cook And Green Pass, Siskiyou County, James P. Smith Jr Jan 2018

Vascular Plants Of Cook And Green Pass, Siskiyou County, James P. Smith Jr

Botanical Studies

No abstract provided.


Sir Joseph Banks, James P. Smith Jr Jan 2018

Sir Joseph Banks, James P. Smith Jr

Botanical Studies

No abstract provided.


Checklist Of The Vascular Plants Of The Arcata Marsh & Wildlife Sanctuary, Humboldt County, James P. Smith Jr. Jan 2018

Checklist Of The Vascular Plants Of The Arcata Marsh & Wildlife Sanctuary, Humboldt County, James P. Smith Jr.

Botanical Studies

No abstract provided.


California Vascular Plants: A Numerical Conspectus At The Family Level, James P. Smith Jr Jan 2018

California Vascular Plants: A Numerical Conspectus At The Family Level, James P. Smith Jr

Botanical Studies

No abstract provided.


Carl Linnaeus: A Timeline, James P. Smith Jr Jan 2018

Carl Linnaeus: A Timeline, James P. Smith Jr

Botanical Studies

No abstract provided.


California Vascular Plants: Are Some Of Them Still Out There?, James P. Smith Jr Jan 2018

California Vascular Plants: Are Some Of Them Still Out There?, James P. Smith Jr

Botanical Studies

No abstract provided.


Assessing Spatio-Temporal Patterns Of Forest Decline Across A Diverse Landscape In The Klamath Mountains Using A 28-Year Landsat Time-Series Analysis, Drew S. Bost Jan 2018

Assessing Spatio-Temporal Patterns Of Forest Decline Across A Diverse Landscape In The Klamath Mountains Using A 28-Year Landsat Time-Series Analysis, Drew S. Bost

Cal Poly Humboldt theses and projects

Rates of tree mortality in California and the Pacific Northwest have greatly increased in recent years, driven largely by pest and pathogen outbreaks as well as the effects of hotter, warmer droughts. While there have been a multitude of regional-scale assessments of mortality and forest decline, landscape-level studies are necessary to better identify forests that are most vulnerable to decline and to anticipate future changes. This need is particularly notable in the remote and little-studied mountains of northwest California, which are renowned for their diverse, heterogeneous vegetation types. A recent observation of elevated levels of Shasta red fir (Abies …


Jeweled Spider Flies (Eulonchus Tristis) Are Important Pollinators Of Iris Bracteata, A Rare Siskiyou Mountain Endemic, Jean-Paul E. Ponte Jan 2018

Jeweled Spider Flies (Eulonchus Tristis) Are Important Pollinators Of Iris Bracteata, A Rare Siskiyou Mountain Endemic, Jean-Paul E. Ponte

Cal Poly Humboldt theses and projects

Little is known about the pollination biology of the Pacific Coast Irises (Iris: series Californicae, hereafter PCI), especially who visits and pollinates their flowers. In general, Iris flowers are considered bee-pollinated, however, flies in the genus Eulonchus (Acroceridae) are known to visit some PCI members. Therefore, I assessed the relative importance of Eulonchus and other insect visitors to the pollination of a rare PCI species native to the Siskiyou Mountains, I. bracteata.

Methods. I quantified pollinator importance for all flower visitors at sites in northern California and southern Oregon as the product of average visit rate and …


A New Anatomically-Preserved Plant From The Lower Devonian Of Quebec (Canada): Implications For Euphyllophyte Phylogeny And Early Evolution Of Structural Complexity, Selin Toledo Jan 2018

A New Anatomically-Preserved Plant From The Lower Devonian Of Quebec (Canada): Implications For Euphyllophyte Phylogeny And Early Evolution Of Structural Complexity, Selin Toledo

Cal Poly Humboldt theses and projects

An abrupt transition in the fossil record between Early Devonian plants with simple structure and structurally-complex later Devonian plants, has frustrated efforts to understand patterns of phylogeny across the Early/Middle Devonian boundary and the evolution of complex forms. Both these aspects have important implications for lignophyte and seed plant evolution. In the first chapter, I evaluate phylogenetic relationships between the earliest seed plants, Aneurophytales, and Stenokoleales, using comprehensive taxon sampling (28 species, including all relevant permineralized species) and a set of 40 discrete and nine continuous morpho-anatomical characters. Analysis of this dataset supports the three traditional taxonomic groups (seed plants, …


Rare, Endangered, And Threatened Grasses Of The Conterminous United States, James P. Smith Jr Mar 2017

Rare, Endangered, And Threatened Grasses Of The Conterminous United States, James P. Smith Jr

Botanical Studies

No abstract provided.


Psychoactive Plants: A Bibliography, James P. Smith Jr Mar 2017

Psychoactive Plants: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


Grass Floras, Manuals, And Checklist, James P. Smith Jr Mar 2017

Grass Floras, Manuals, And Checklist, James P. Smith Jr

Botanical Studies

No abstract provided.


Useful Plants – Ethnobotanical Studies: A Bibliography, James P. Smith Jr Mar 2017

Useful Plants – Ethnobotanical Studies: A Bibliography, James P. Smith Jr

Botanical Studies

No abstract provided.


The Earth's Grass Flora: A Numerical Conspectus (A Comparison Of Seventeen Summaries), James P. Smith Jr Mar 2017

The Earth's Grass Flora: A Numerical Conspectus (A Comparison Of Seventeen Summaries), James P. Smith Jr

Botanical Studies

No abstract provided.