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- and P. glauca in Thuja-Betula forests. (1)
- A lack of suitable substrate is thought to be limiting their seedling establishment so I asked which substrates the seedlings preferred in the old forest. To answer both questions (1)
- A stump (rather than a log). For B. alleghaniensis seedlings (1)
- ABCB (1)
- AUX/LAX (1)
- Abies balsamea (1)
- Age structure (1)
- And Acer saccharum. Although CWD covered 5% of the ground in this old forest (1)
- And is also limited by the availability of canopy gaps. Its seedlings preferred CWD that was (1)
- And the uncommon Picea glauca were found exclusively on coarse woody debris (CWD) rather than leaf litter. I used a generalized linear mixed effects model to rank the influence of each type of CWD on seedling density while comparing their influence to that of site level variables. T. occidentalis regeneration is failing (1)
- Animals (1)
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Articles 1 - 30 of 47
Full-Text Articles in Life Sciences
The Effects Of Trailside/Non-Trailside Sample Collection And Tree Communities On Biodiversity Of Mushroom-Forming Fungi In Public Green Spaces Of New London, Connecticut, Quincy Dowling
Botany Honors Papers
The Kingdom Fungi holds a wealth of biodiversity and potential for better supporting both natural and human communities (Lange, 2014). Mushroom-forming fungi have potential value as sustainable and accessible sources of food in public green spaces (Rombach & Dean, 2023). The purpose of this investigation was to examine the effect of trailside disturbance and tree communities on the diversity and community composition of mushroom-forming fungi in New London, Connecticut. Six public green spaces were identified and surveyed for species richness of mushroom-forming fungi. At each site, two foraging areas of equal area were defined: one along either side of a …
Multiyear Defoliations In Southern New England Increases Oak Mortality, Jeffrey S. Ward, Chad C. Jones, Joseph P. Barsky
Multiyear Defoliations In Southern New England Increases Oak Mortality, Jeffrey S. Ward, Chad C. Jones, Joseph P. Barsky
Botany Faculty Publications
After decades of multiyear defoliation episodes in southern New England, Lymantria dispar dispar (LDD; previously gypsy moth) populations collapsed with the appearance of the LDD fungus in 1989. Multiyear defoliations did not occur again until 2015-2018. To assess the impact of the return of multiyear defoliations, we examined 3095 oaks on 29 permanent study areas in Connecticut and Rhode Island that were established at least eleven years before the latest outbreaks. Pre-defoliation stand level oak mortality averaged 2% (three-year basis). Post-defoliation mortality did not differ between managed and unmanaged stands, but was much higher in severely defoliated stands (36%) than …
Bulletin 44: New Directions In The American Landscape, Larry Weaner, Chad Adams, Kofi Boone, Rick Darke, Thomas Woltz, Thomas Baker, Jeffrey Longhenry
Bulletin 44: New Directions In The American Landscape, Larry Weaner, Chad Adams, Kofi Boone, Rick Darke, Thomas Woltz, Thomas Baker, Jeffrey Longhenry
Bulletins
No abstract provided.
Ultrastructural Analysis Of The Digestive Gland Secretory And Absorptive Processes In Nepenthes Glandulifera, Shannon Manuel
Ultrastructural Analysis Of The Digestive Gland Secretory And Absorptive Processes In Nepenthes Glandulifera, Shannon Manuel
Biochemistry, Cellular and Molecular Biology Honors Papers
Nepenthes glandulifera is a carnivorous pitcher plant native to tropical environments, of which the majority live on the islands in the Malay Archipelago where sunlight and water are abundant. The pitcher trap style contains a modified pitfall trap that attracts insects and other small invertebrates through various attractive mechanisms. These plants also contain digestive glands that secrete digestive fluid to break down prey into nutrients for the plant. The digestive fluid, with remarkably unique properties, has been analyzed in relation to multiple areas of study including the development of an enzyme-supplementation strategy for the treatment of celiac disease and the …
Investigating The Role Of Recreational Trails In Plant Invasion In Southeastern Connecticut, Asa John Peters
Investigating The Role Of Recreational Trails In Plant Invasion In Southeastern Connecticut, Asa John Peters
Botany Honors Papers
No abstract provided.
Arboretum Annual Report 2016-2017, Glenn Dreyer
Arboretum Annual Report 2015-2016, Glenn Dreyer
Effective Establishment Of Native Grasses On Roadsides In New England, Yulia Kuzovkina, John Campanelli, Cristian Schulthess, Robert Ricard, Glenn Dreyer
Effective Establishment Of Native Grasses On Roadsides In New England, Yulia Kuzovkina, John Campanelli, Cristian Schulthess, Robert Ricard, Glenn Dreyer
Other Publications and Reports
No abstract provided.
Bulletin No. 40: Salt Marsh Plants Of Long Island Sound, R. Scott Warren, Juliana Barrett, Margaret Van Patten
Bulletin No. 40: Salt Marsh Plants Of Long Island Sound, R. Scott Warren, Juliana Barrett, Margaret Van Patten
Bulletins
No abstract provided.
A Whole-Plant Approach To Identifying Sites Of Auxin Biosynthesis In Populus, Daniel Evanich
A Whole-Plant Approach To Identifying Sites Of Auxin Biosynthesis In Populus, Daniel Evanich
Botany Honors Papers
The plant hormone auxin regulates many processes throughout plant growth and development. Aboveground auxin biosynthesis is thought to occur exclusively in the shoot apex, where it then moves via polar auxin transport (PAT) down through developing vasculature in the stem. In contrast to the canonical view of the shoot apex as the sole site of auxin production, there is some evidence to suggest that other tissues contribute auxin to the stem. Woody plants in particular may require additional sources of auxin to support the extensive vascular development in the woody stem, but very little is known about whole-plant auxin dynamics …
Developmental Changes And H+-Atpase Co-Localization In Nepenthes Alata Peristomal Nectary Glands, Alison Carini
Developmental Changes And H+-Atpase Co-Localization In Nepenthes Alata Peristomal Nectary Glands, Alison Carini
Biology Honors Papers
Nepenthes alata is an east-Asian species of tropical carnivorous plant more commonly known as a pitcher plant. The pitcher is a modified epiascidiate leaf used to passively capture insects as nutritious supplements to its diet. In this study, the ultrastructure of different age stages of peristomal extrafloral nectary glands were surveyed, selected ages were immunolabeled for H+-ATPases. All nectary cells had numerous mitochondria, endoplasmic reticulum, Golgi bodies, plastids, and vacuoles in a dense cytoplasm consistent with an active secretory system. The larger class of immature pitchers (approx. 4 cm in diameter, lid closed) had budding structures affecting the plasma membrane …
The Effect Of Pin Reduction In Populus: The Search For The Missing Phenotype, Samuel Norcross
The Effect Of Pin Reduction In Populus: The Search For The Missing Phenotype, Samuel Norcross
Biology Honors Papers
The plant hormone auxin is involved in virtually every aspect of plant growth and development. Because of its vital role in plant physiology, it is transported through controlled mechanisms. The PIN family of efflux carrier proteins are highly involved in this transport, shuttling molecules of auxin from cell to cell. This PIN-driven transport of auxin guides the differentiation of plant vasculature. In this study, I used a clonally-propagated line of the woody plant species Populus tremula x alba that had been genetically altered to induce an RNAi response against genes coding for the PIN proteins. These plants were shown to …
Evaluating The Success Of Seed Sowing In A New England Grassland, Chad C. Jones, Glenn D. Dreyer, Nels Barrett
Evaluating The Success Of Seed Sowing In A New England Grassland, Chad C. Jones, Glenn D. Dreyer, Nels Barrett
Botany Faculty Publications
Grassland habitat is declining in the northeastern United States, leading to a decline in associated native species. Consequently, there is considerable interest by land managers in conserving and restoring grassland habitats in the Northeast. However, unlike the Great Plains and Europe, quantitative monitoring of restoration sites is uncommon, making it difficult to improve new restoration projects. Here we evaluate a grassland restoration in Waterford, Connecticut to determine if mechanical clearing of woody vegetation combined with sowing 23 native grasses and forbs led to successful establishment of these species. We also compared cover, diversity, and colonization by exotic and woody species …
Factors Influencing The Current And Historical Invasion Trends In The Connecticut College Arboretum, Lillian Fayerweather
Factors Influencing The Current And Historical Invasion Trends In The Connecticut College Arboretum, Lillian Fayerweather
Botany Honors Papers
Invasive species present a growing risk to native ecosystems. It would be impossible to eliminate them, but by learning where they are more likely to occur it may be possible to concentrate resources on removal and management in the most at risk areas. A number of site characteristics may influence invasive species presence and invasion trends. In order to determine what factors affect species presence and historical invasion trends, I utilized data from decennial surveys conducted in the Bolleswood Natural Area of the Connecticut College Arboretum in New London, Connecticut. In 1952, 4 transects were established across the area, composed …
Challenges In Predicting The Future Distributions Of Invasive Plant Species, Chad C. Jones
Challenges In Predicting The Future Distributions Of Invasive Plant Species, Chad C. Jones
Botany Faculty Publications
Species distribution models (SDMs) are increasingly used to predict distributions of invasive species. If successful, these models can help managers target limited resources for monitoring and controlling invasive species to areas of high invasion risk. Model accuracy is usually determined using current species distributions, but because invasive species are not at equilibrium with the environment, high current accuracy may not indicate high future accuracy. I used 1982 species distribution data from Bolleswood Natural Area, Connecticut, USA, to create SDMs for two forest invaders, Celastrus orbiculatus and Rosa multiflora. I then used more recent data, from 1992 and 2002, as validation …
Diversification And Expression Of The Pin, Aux/Lax, And Abcb Families Of Putative Auxin Transporters In Populus, Nicola Carraro, Tracy Elizabeth Tisdale-Orr, Ronald Matthew Clouse, Anne Sophie Knöller, Rachel Spicer
Diversification And Expression Of The Pin, Aux/Lax, And Abcb Families Of Putative Auxin Transporters In Populus, Nicola Carraro, Tracy Elizabeth Tisdale-Orr, Ronald Matthew Clouse, Anne Sophie Knöller, Rachel Spicer
Botany Faculty Publications
Intercellular transport of the plant hormone auxin is mediated by three families of membrane-bound protein carriers, with the PIN and ABCB families coding primarily for efflux proteins and the AUX/LAX family coding for influx proteins. In the last decade our understanding of gene and protein function for these transporters in Arabidopsis has expanded rapidly but very little is known about their role in woody plant development. Here we present a comprehensive account of all three families in the model woody species Populus, including chromosome distribution, protein structure, quantitative gene expression, and evolutionary relationships. The PIN and AUX/LAX gene families …
Combining Local- And Large-Scale Models To Predict The Distributions Of Invasive Plant Species, Chad C. Jones, Steven A. Acker, Charles B. Halpern
Combining Local- And Large-Scale Models To Predict The Distributions Of Invasive Plant Species, Chad C. Jones, Steven A. Acker, Charles B. Halpern
Botany Faculty Publications
Habitat-distribution models are increasingly used to predict the potential distributions of invasive species and to inform monitoring. However, these models assume that species are in equilibrium with the environment, which is clearly not true for most invasive species. Although this assumption is frequently acknowledged, solutions have not been adequately addressed. There are several potential methods for improving habitat-distribution models. Models that require only presence data may be more effective for invasive species, but this assumption has rarely been tested. In addition, combining modeling types to form ‘ensemble’ models may improve the accuracy of predictions. However, even with these improvements, models …
Seedlings’ Substrate Preferences In A Minnesota Old Growth Thuja-Betula Forest, Stephen C. Rossiter
Seedlings’ Substrate Preferences In A Minnesota Old Growth Thuja-Betula Forest, Stephen C. Rossiter
Environmental Studies Honors Papers
Northeastern Minnesota’s logging history has altered the forests enough to cause concern about the reproduction of Thuja occidentalis and Betula alleghaniensis. I studied a rare old growth example of an already rare mesic Thuja-Betula forest and asked how well those species were regenerating in that mostly unaltered ecosystem. In managed forests, a lack of suitable substrate is thought to be limiting their seedling establishment so I asked which substrates the seedlings preferred in the old forest. To answer both questions, I measured the seedling densities of all canopy tree species across height classes and substrate types within twenty 100m2 plots. …
Current And Potential Distributions Of Three Non-Native Invasive Plants In The Contiguous Usa, Chad C. Jones, Sarah Reichard
Current And Potential Distributions Of Three Non-Native Invasive Plants In The Contiguous Usa, Chad C. Jones, Sarah Reichard
Botany Faculty Publications
Biological invasions pose a serious threat to biodiversity, but monitoring for invasive species is time consuming and costly. Understanding where species have the potential to invade enables land managers to focus monitoring efforts. In this paper, we compared two simple types of models to predict the potential distributions of three non-native invasive plants (Geranium robertianum, Hedera spp., and Ilex aquifolium) in the contiguous USA. We developed models based on the climatic requirements of the species as reported in the literature (literature-based) and simple climate envelope models based on the climate where the species already occur (observation-based). We then compared the …
Dispersal And Establishment Both Limit Colonization During Primary Succession On A Glacier Foreland, Chad C. Jones, Roger Del Moral
Dispersal And Establishment Both Limit Colonization During Primary Succession On A Glacier Foreland, Chad C. Jones, Roger Del Moral
Botany Faculty Publications
Plant colonization can be limited by lack of seeds or by factors that reduce establishment. The role of seed limitation in community assembly is being increasingly recognized, but in early primary succession, establishment failure is still considered more important. We studied the factors limiting colonization on the foreland of Coleman Glacier, Washington, USA to determine the importance of seed and establishment limitation during primary succession. We also evaluated the effects of seed predation, drought and existing vegetation on establishment. We planted seeds of seven species into plots of four different ages and found evidence that both seed and establishment limitation …
Bulletin No. 39: Seaweeds Of Long Island Sound, Margaret "Peg" Stewart Van Patten, Dr. Charles Yarish
Bulletin No. 39: Seaweeds Of Long Island Sound, Margaret "Peg" Stewart Van Patten, Dr. Charles Yarish
Bulletins
No abstract provided.
Plant Succession On Gopher Mounds In Western Cascade Meadows: Consequences For Species Diversity And Heterogeneity, Chad C. Jones, Charles B. Halpern, Jessica Niederer
Plant Succession On Gopher Mounds In Western Cascade Meadows: Consequences For Species Diversity And Heterogeneity, Chad C. Jones, Charles B. Halpern, Jessica Niederer
Botany Faculty Publications
Pocket gophers have the potential to alter the dynamics of grasslands by creating mounds that bury existing vegetation and locally reset succession. Gopher mounds may provide safe sites for less competitive species, potentially increasing both species diversity and vegetation heterogeneity (spatial variation in species composition). We compared species composition, diversity and heterogeneity among gopher mounds of different ages in three montane meadows in the Cascade Range of Oregon. Cover of graminoids and forbs increased with mound age, as did species richness. Contrary to many studies, we found no evidence that mounds provided safe sites for early successional species, despite their …
The Flora Of The Burnham Brook Preserve Of The Nature Conservancy, Richard Goodwin
The Flora Of The Burnham Brook Preserve Of The Nature Conservancy, Richard Goodwin
Other Publications and Reports
No abstract provided.
Greening Connecticut Cities And Towns, Managing Public Trees And Community Forests, Glenn D. Dreyer, Robert M. Ricard
Greening Connecticut Cities And Towns, Managing Public Trees And Community Forests, Glenn D. Dreyer, Robert M. Ricard
Other Publications and Reports
No abstract provided.
Bulletin No. 38: The Hidden World Of Plants: A Scanning Electron Microscope Survey Of The Native Plant Collection, Connecticut College Arboretum, Danica C. Kubick, T. Page Owen Jr.
Bulletin No. 38: The Hidden World Of Plants: A Scanning Electron Microscope Survey Of The Native Plant Collection, Connecticut College Arboretum, Danica C. Kubick, T. Page Owen Jr.
Bulletins
No abstract provided.
Bulletin No. 37: Living Resources And Habitats Of The Lower Connecticut River, Glenn D. Dreyer, Marcianna Caplis
Bulletin No. 37: Living Resources And Habitats Of The Lower Connecticut River, Glenn D. Dreyer, Marcianna Caplis
Bulletins
No abstract provided.
Bulletin No. 28: The Connecticut Arboretum: Its First Fifty Years 1931 - 1981, George S. Avery, William A. Niering, Richard H. Goodwin
Bulletin No. 28: The Connecticut Arboretum: Its First Fifty Years 1931 - 1981, George S. Avery, William A. Niering, Richard H. Goodwin
Bulletins
56 pp. 1982. Historical accounts of the formation and growth of the Arboretum.
Bulletin No. 24: Garden Guide To Woody Plants: A Plant Handbook, Sally L. Taylor, William A. Niering
Bulletin No. 24: Garden Guide To Woody Plants: A Plant Handbook, Sally L. Taylor, William A. Niering
Bulletins
100 pp. 1979. Lists and descriptions of over 500 different trees and shrubs useful for landscaping
Bulletin No. 23: Plants And Animals Of The Estuary, William A. Niering, Paul E. Fell, Sally L. Taylor, Martine Villalard-Bohnsack, Nancy C. Olmstead
Bulletin No. 23: Plants And Animals Of The Estuary, William A. Niering, Paul E. Fell, Sally L. Taylor, Martine Villalard-Bohnsack, Nancy C. Olmstead
Bulletins
Descriptions and illustrations of over 70 estuarine species.
Bulletin No. 22: Our Dynamic Tidal Marshes: Vegetation Changes As Revealed By Peat Analysis, William A. Niering, R. Scott Warren, Carolyn G. Weymouth
Bulletin No. 22: Our Dynamic Tidal Marshes: Vegetation Changes As Revealed By Peat Analysis, William A. Niering, R. Scott Warren, Carolyn G. Weymouth
Bulletins
12 pp. 1976. Description of a method for sampling peat and identifying plant remains in order to dcoument vegetation change on tidal marshes.