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- Plant Ecology/Demography (16)
- Florida Vegetation, Fire Ecology, and Masting (9)
- Goldenrods, Herbivores, and Natural Enemies (9)
- Eurosta solidaginis (5)
- Pennsylvania and Arizona Natural Areas (5)
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- Florida (4)
- Oaks, Cynipid Wasps, and Others (4)
- Pennsylvania (4)
- Serenoa repens (4)
- Cynipidae (3)
- Gall (3)
- Goldenrod (3)
- Ordination (3)
- Pedagogy/How We Do Science (3)
- Quercus (3)
- Sabal etonia (3)
- Acorn (2)
- Architectural defense (2)
- Asteraceae (2)
- Candy-cane stems (2)
- Gall insects (2)
- Old-growth forest (2)
- Ridge and valley (2)
- Sequential radiation (2)
- Sequential speciation (2)
- AFLP (1)
- Adleria (1)
- Amplified fragment length polymorphisms (1)
- Anthropogenic (1)
- Arecaceae (1)
Articles 1 - 25 of 25
Full-Text Articles in Life Sciences
2017_Murphy Et Al._Food Habits Of A Small Fl Bear Population In Endangered Ecosystem.Pdf, Sean M. Murphy, Wade A. Ulrey, Joseph M. Guthrie, David S. Maehr, Warren G. Abrahamson Ii, Sutton C. Maehr, John J. Cox
2017_Murphy Et Al._Food Habits Of A Small Fl Bear Population In Endangered Ecosystem.Pdf, Sean M. Murphy, Wade A. Ulrey, Joseph M. Guthrie, David S. Maehr, Warren G. Abrahamson Ii, Sutton C. Maehr, John J. Cox
Warren G. Abrahamson, II
Taxonomy And Phylogeny Of The Asphondylia Species (Diptera: Cecidomyiidae) Of North American Goldenrods: Challenging Morphology, Complex Host Associations, And Cryptic Speciation, Netta Dorchin, Jeffrey Joy, Lukas Hilke, Michael Wise, Warren Abrahamson
Taxonomy And Phylogeny Of The Asphondylia Species (Diptera: Cecidomyiidae) Of North American Goldenrods: Challenging Morphology, Complex Host Associations, And Cryptic Speciation, Netta Dorchin, Jeffrey Joy, Lukas Hilke, Michael Wise, Warren Abrahamson
Warren G. Abrahamson, II
Reproductive isolation and speciation in herbivorous insects may be accomplished via shifts between host-plant resources: either plant species or plant organs. The intimate association between gall-inducing insects and their host plants makes them particularly useful models in the study of speciation. North American goldenrods (Asteraceae: Solidago and Euthamia) support a rich fauna of gall-inducing insects. Although several of these insects have been the subject of studies focusing on speciation and tritrophic interactions, others remain unstudied and undescribed. Among the latter are at least seven species of the large, cosmopolitan gall midge genus Asphondylia Loew (Diptera: Cecidomyiidae), the taxonomy and biology …
The Role Of Olfactory Cues In The Sequential Radiation Of A Gall-Boring Beetle, Mordellistena Convicta, Bradley Rhodes, Catherine Blair, Mizuki Takahashi, Warren Abrahamson
The Role Of Olfactory Cues In The Sequential Radiation Of A Gall-Boring Beetle, Mordellistena Convicta, Bradley Rhodes, Catherine Blair, Mizuki Takahashi, Warren Abrahamson
Warren G. Abrahamson, II
1. Herbivorous insects often have close associations with specific host plants, and their preferences for mating and ovipositing on a specific host-plant species can reproductively isolate populations, facilitating ecological speciation. Volatile emissions from host plants can play a major role in assisting herbivores to locate their natal host plants and thus facilitate assortative mating and host-specific oviposition. 2. The present study investigated the role of host-plant volatiles in host fidelity and oviposition preference of the gall-boring, inquiline beetle, Mordellistena convicta, using Y-tube olfactometers. Previous studies suggest that the gall-boring beetle is undergoing sequential host-associated divergence by utilizing the resources that …
The Spatial Signature Of Biotic Interactions Of A Clonal And A Non-Clonal Palmetto In A Subtropical Plant Community, Mizuki Takahashi, Toshiro Kubota, Liana Horner, Nathan Keller, Warren Abrahamson
The Spatial Signature Of Biotic Interactions Of A Clonal And A Non-Clonal Palmetto In A Subtropical Plant Community, Mizuki Takahashi, Toshiro Kubota, Liana Horner, Nathan Keller, Warren Abrahamson
Warren G. Abrahamson, II
Spatial analyses of plant-distribution patterns can provide inferences about intra- and interspecific biotic interactions. Yet, such analyses are rare for clonal plants because effective tools (i.e., molecular markers) needed to map naturally occurring clonal individuals have only become available recently. Clonal plants are unique in that a single genotype has a potential to spatially place new individuals (i.e., ramets) in response to intra- and interspecific biotic interactions. Laboratory and greenhouse studies suggest that some clonal plants can avoid intra-genet, inter-genet, and inter-specific competition via rootplacement patterns. An intriguing and yet to be explored question is whether a spatial signature of …
Extensive Clonal Spread And Extreme Longevity In Saw Palmetto, A Foundation Clonal Plant, Mizuki K. Takahashi, Liana M. Horner, Toshiro Kubota, Nathan A. Keller, Warren G. Abrahamson Ii
Extensive Clonal Spread And Extreme Longevity In Saw Palmetto, A Foundation Clonal Plant, Mizuki K. Takahashi, Liana M. Horner, Toshiro Kubota, Nathan A. Keller, Warren G. Abrahamson Ii
Warren G. Abrahamson, II
The lack of effective tools has hampered our ability to assess the size, growth and ages of clonal plants. With Serenoa repens (saw palmetto) as a model, we introduce a novel analytical frame work that integrates DNA fingerprinting and mathematical modelling to simulate growth and estimate ages of clonal plants. We also demonstrate the application of such life-history information of clonal plants to provide insight into management plans. Serenoa is an ecologically important foundation species in many Southeastern United States ecosystems; yet, many land managers consider Serenoa a troublesome invasive plant. Accordingly, management plans have been developed to reduce or …
Genetic Variation For Susceptibility To Storm-Induced Stem Breakage In Solidago Altissima: The Role Of Stem Height And Morphology, M. Wise, W. Abrahamson
Genetic Variation For Susceptibility To Storm-Induced Stem Breakage In Solidago Altissima: The Role Of Stem Height And Morphology, M. Wise, W. Abrahamson
Warren G. Abrahamson, II
While storms can have obvious ecological impacts on plants, plants’ potential to respond evolutionarily to selection for increased resistance to storm damage has received little study. We took advantage of a thunderstorm with strong wind and hail to examine genetic variation for resistance to stem breakage in the herbaceous perennial Solidago altissima. The storm broke the apex of nearly 10% of 1883 marked ramets in a common-garden plot containing 26 genets of S. altissima. Plant genets varied 20-fold in resistance to breakage. Stem height was strongly correlated with resistance to breakage, with taller stems being significantly more susceptible. A stem’s …
Spatiotemporal Variation Of Fruit Digestible-Nutrient Production In Florida's Uplands, J. Layne, W. Abrahamson
Spatiotemporal Variation Of Fruit Digestible-Nutrient Production In Florida's Uplands, J. Layne, W. Abrahamson
Warren G. Abrahamson, II
We examined annual total digestible nutrient (TDN) production by fruits of eight species (Quercus chapmanii, Q. geminata, Q. inopina, Q. laevis, Q. myrtifolia, Carya floridana, Sabal etonia, Serenoa repens) that account for the major proportion of TDN production by fruits and seeds in Florida’s xeric upland associations (southern ridge sandhill, sand pine scrub, scrubby flatwoods). Mean annual fruit TDN of all species combined over a 27-year span in sandhill and scrub and 24 years in scrubby flatwoods was highest (45.4 kg/ha) in sandhill, intermediate in scrubby flatwoods (28.8 kg/ha), and lowest in scrub (14.2 kg/ha). Sandhill fruit TDN production was …
Ducking As The Means Of Resistance In "Candy-Cane" Stems Of Goldenrod: Straightened Stems Lose Their Edge, M. J. Wise, W. G. Abrahamson, J. A. Cole
Ducking As The Means Of Resistance In "Candy-Cane" Stems Of Goldenrod: Straightened Stems Lose Their Edge, M. J. Wise, W. G. Abrahamson, J. A. Cole
Warren G. Abrahamson, II
Herbivores are among the most pervasive selective forces acting on plants, and the number of plant chemicals that presumably evolved for defense against herbivory is immense. In contrast, biologists are only beginning to appreciate the important roles that architectural traits can play in antiherbivore defense. One putative architectural-resistance trait is the nodding stem apex of some goldenrods (Solidago ; Asteraceae). Individuals of S. altissima genets that undergo temporary nodding in the late spring (i.e., “candy-cane ramets) have been shown to be more resistant than individuals of erect-stemmed genets to certain apex-attacking” herbivores. We tested the hypothesis that the greater resistance …
Nutrition As A Facilitator Of Host-Race Formation: The Role Of Food Quality In The Shift Of A Stem-Boring Beetle To A Gall Host, C. P. Blair, R. V. Schlanger, S. E. Diamond, W. G. Abrahamson
Nutrition As A Facilitator Of Host-Race Formation: The Role Of Food Quality In The Shift Of A Stem-Boring Beetle To A Gall Host, C. P. Blair, R. V. Schlanger, S. E. Diamond, W. G. Abrahamson
Warren G. Abrahamson, II
1. The importance of host-race formation to herbivorous insect diversity depends on the likelihood that successful populations can be established on a new plant host. A previously unexplored ecological aid to success on a novel host is better nutritional quality. The role of nutrition was examined in the shift of the stem-boring beetle Mordellistena convicta to fly-induced galls on goldenrod and the establishment there of a genetically distinct gall host race. 2. First, larvae of the host race inhabiting stems of Solidago gigantea were transplanted into stems and galls of greenhouse-grown S. gigantea plants. At the end of larval development, …
Life In The Slow Lane: Palmetto Seedlings Exhibit Remarkable Survival But Slow Growth In Florida's Nutrient-Poor Uplands, W. G. Abrahamson, C. R. Abrahamson
Life In The Slow Lane: Palmetto Seedlings Exhibit Remarkable Survival But Slow Growth In Florida's Nutrient-Poor Uplands, W. G. Abrahamson, C. R. Abrahamson
Warren G. Abrahamson, II
The palmettos Serenoa repens and Sabal etonia are crucial foundation species in many peninsular Florida vegetative associations. We monitored the survival and growth of individual palmetto seedlings using two cohorts found in different vegetative associations. Seedling cohorts containing both S. repens and S. etonia were individually tagged in 1989 and have been monitored until 2008, a period of 19 years. One cohort (N = 100 seedlings) occurs in a xeric, “inopina-phase” scrubby flatwoods and a second cohort (N =78 seedlings) lives in a well-drained, “wiregrass-phase” flatwoods. The soils at both sites are very nutrient-poor Entisols that show rapid permeability, low …
Associational Resistance, Gall-Fly Preferences, And A Stem Dimorphism In Solidago Altissima, M. J. Wise, C. G. Yi, W. G. Abrahamson
Associational Resistance, Gall-Fly Preferences, And A Stem Dimorphism In Solidago Altissima, M. J. Wise, C. G. Yi, W. G. Abrahamson
Warren G. Abrahamson, II
No abstract provided.
Sequential Radiation Through Host-Race Formation: Herbivore Diversity Leads To Diversity In Natural Enemies, Warren G. Abrahamson Ii, C.P. Blair
Sequential Radiation Through Host-Race Formation: Herbivore Diversity Leads To Diversity In Natural Enemies, Warren G. Abrahamson Ii, C.P. Blair
Warren G. Abrahamson, II
No abstract provided.
Ecosampler: A Learning Object For Community Sampling, Community Structure, And Succession, Warren G. Abrahamson Ii, M.R. Weaver
Ecosampler: A Learning Object For Community Sampling, Community Structure, And Succession, Warren G. Abrahamson Ii, M.R. Weaver
Warren G. Abrahamson, II
No abstract provided.
Plant And Pollinator Diversity In Northern Arizona, Warren Abrahamson, L.E. Stevens, T.L. Griswold, O. Messenger, T.J. Ayers
Plant And Pollinator Diversity In Northern Arizona, Warren Abrahamson, L.E. Stevens, T.L. Griswold, O. Messenger, T.J. Ayers
Warren G. Abrahamson, II
No abstract provided.
Leaf Traits And Leaf Life Spans Of Two Xeric-Adapted Palmettos, Warren Abrahamson
Leaf Traits And Leaf Life Spans Of Two Xeric-Adapted Palmettos, Warren Abrahamson
Warren G. Abrahamson, II
Plants of nutrient-poor, arid environments often have leaf traits that include small size, sclerophylly, long life span, low nutrient concentration, and low photosynthetic rate. Hence, the success of two large-leaved palmettos in peninsular Florida’s seasonally xeric, nutrient-impoverished uplands seems anomalous, given that their leaves are orders of magnitude larger than the leaves of co-occurring species. An examination of leaf traits and leaf life spans across four vegetative associations differing in available light using a 16-yr data set showed that leaves of Serenoa repens and Sabal etonia had low rates of leaf production coupled with long leaf life spans reaching 3.5 …
Review Of The Nearctic Gallwasp Species Of The Genus Bassettia Ashmead, 1887, With Description Of New Species (Hymenoptera: Cynipidae: Cynipini), Warren G. Abrahamson Ii, G. Melika
Review Of The Nearctic Gallwasp Species Of The Genus Bassettia Ashmead, 1887, With Description Of New Species (Hymenoptera: Cynipidae: Cynipini), Warren G. Abrahamson Ii, G. Melika
Warren G. Abrahamson, II
No abstract provided.
Purple Loosestrife On The Susquehanna River’S West Branch: Distribution And Environmental Correlates, E. Ketterer, Warren Abrahamson
Purple Loosestrife On The Susquehanna River’S West Branch: Distribution And Environmental Correlates, E. Ketterer, Warren Abrahamson
Warren G. Abrahamson, II
No abstract provided.
Insects Raise Some Galling Questions, Warren G. Abrahamson Ii
Insects Raise Some Galling Questions, Warren G. Abrahamson Ii
Warren G. Abrahamson, II
No abstract provided.
Classification And Successional Changes Of Mixed-Oak Forests At The Mohn Mill Area, Pennsylvania, Warren G. Abrahamson Ii, A.C. Gohn
Classification And Successional Changes Of Mixed-Oak Forests At The Mohn Mill Area, Pennsylvania, Warren G. Abrahamson Ii, A.C. Gohn
Warren G. Abrahamson, II
No abstract provided.
Cynipid Gall-Wasp Communities Correlate With Oak Chemistry, Warren Abrahamson, M.D. Hunter, G. Melika, P.W. Price
Cynipid Gall-Wasp Communities Correlate With Oak Chemistry, Warren Abrahamson, M.D. Hunter, G. Melika, P.W. Price
Warren G. Abrahamson, II
No abstract provided.
Long-Term Patterns Of Acorn Production For Five Oak Species In Xeric Florida Uplands, Warren G. Abrahamson Ii, J.N. Layne
Long-Term Patterns Of Acorn Production For Five Oak Species In Xeric Florida Uplands, Warren G. Abrahamson Ii, J.N. Layne
Warren G. Abrahamson, II
No abstract provided.
Forest Composition, Spatial Pattern, And Size Structure Of The Snyder-Middleswarth Natural Area Old-Growth, Snyder County, Pennsylvania, P.P. Zawadzkas, Warren G. Abrahamson Ii
Forest Composition, Spatial Pattern, And Size Structure Of The Snyder-Middleswarth Natural Area Old-Growth, Snyder County, Pennsylvania, P.P. Zawadzkas, Warren G. Abrahamson Ii
Warren G. Abrahamson, II
No abstract provided.
Post-Fire Recovery Of Acorn Production By Four Oak Species In Southern Ridge Sandhill Association In South-Central Florida, Warren Abrahamson, J.N. Layne
Post-Fire Recovery Of Acorn Production By Four Oak Species In Southern Ridge Sandhill Association In South-Central Florida, Warren Abrahamson, J.N. Layne
Warren G. Abrahamson, II
No abstract provided.
Just Lookin' For A Home, Warren G. Abrahamson Ii, A. E. Weis
Just Lookin' For A Home, Warren G. Abrahamson Ii, A. E. Weis
Warren G. Abrahamson, II
No abstract provided.
Montandon Marsh: A Vegetation Description Of A Potentially Endangered Wetland, E. Hochman, W. Abrahamson, J. Clark
Montandon Marsh: A Vegetation Description Of A Potentially Endangered Wetland, E. Hochman, W. Abrahamson, J. Clark
Warren G. Abrahamson, II
No abstract provided.