Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- AFLP (1)
- Ammodramus caudacutus (1)
- Aronia (1)
- Aronia melanocarpa (1)
- Aronia mitschurinii (1)
-
- Assisted regeneration (1)
- Bayesian hierarchical models (1)
- Biodiversity (1)
- Chokeberry (1)
- Community ecology (1)
- Conservation (1)
- DIDSON (1)
- Dispersal (1)
- Fisheries ecology (1)
- Forest regeneration (1)
- Habitat use (1)
- Hydroacoustics (1)
- Occupancy modeling (1)
- Plant breeding (1)
- Pollination (1)
- Predation (1)
- Predator facilitation (1)
- Reef fish ecology (1)
- Remnant tree (1)
- Remote sensing (1)
- Salt marsh (1)
- Saltmarsh sparrow (1)
- Seed size (1)
- Sorbaronia (1)
- Succession (1)
Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
Forest Regeneration On The Osa Peninsula, Costa Rica, Manette E. Sandor
Forest Regeneration On The Osa Peninsula, Costa Rica, Manette E. Sandor
Master's Theses
Woody species diversity of secondary forest has the potential to converge with that found in old growth forest. This study is the first to examine multiple aspects of species and reproductive trait diversity, and their relationship to each other, across a successional chronosequence. Species richness and species diversity increases with increasing age of forest. Diaspore size and diversity as well as fruit size generally increased with increasing age of forest, but fruit size diversity did not. Abundance of animal-dispersed species increased whereas wind-dispersed species decreased in abundance over succession. Insect-pollinated individuals were most abundant overall. Diaspore diversity, pollination diversity, and …
An Approach For Use Of Dual Frequency Identification Sonar (Didson) To Quantify Behavioral Aspects Of Piscivory At Ecologically Relevant Time And Space Scales, Victoria E. Price
An Approach For Use Of Dual Frequency Identification Sonar (Didson) To Quantify Behavioral Aspects Of Piscivory At Ecologically Relevant Time And Space Scales, Victoria E. Price
Master's Theses
Predator-prey interactions of large vagile fishes are difficult to study in the ocean due to limitations in the space and time requirements for observations. Small-scale direct underwater observations by divers (<10m >radius) and large-scale hydroacoustic surveys (10s - 100s km2) are traditional approaches. However, large piscivorous predators identify and attack prey at the scale of meters to tens of meters. Dual- Frequency Identification Sonar, or DIDSON, is a high-resolution acoustic camera operating in the MHz range that provides detailed continuous video-like imaging of objects out to 30 m range. This technology can be used to observe predator-prey interactions at ecologically …10m>
Aronia Mitschurinii: Solving A Horticultural Enigma, Peter J. Leonard
Aronia Mitschurinii: Solving A Horticultural Enigma, Peter J. Leonard
Master's Theses
Aronia (Medik.), commonly known as chokeberry, is a taxonomically misunderstood genus currently experiencing a renaissance in North America as both an ornamental and fruit crop. Three species of chokeberry are commonly accepted as native in North America: A. arbutifolia (L.) Pers. red chokeberry; A. melanocarpa (Michx.) Elliot, black chokeberry; and A. prunifolia (Marshall) Rehder, or purple chokeberry. In Europe a fourth species of human origin is recognized as Aronia mitschurinii (A.K.Skvortsov & Maitul.), or cultivated, black-fruited Aronia. It is widely speculated that this genotype originated in the early 20th century with Russian pomologist Ivan Michurin, as the product …
Modeling Saltmarsh Sparrow Distribution In Connecticut, Susan T. Meiman
Modeling Saltmarsh Sparrow Distribution In Connecticut, Susan T. Meiman
Master's Theses
To develop a map that would predict where saltmarsh sparrows live and reproduce in Connecticut, I compared models to test a) whether field data or remote-sensing data most effectively characterized within-marsh conditions that relate to sparrow occurrence, and b) whether including landscape-level variables improved model fit. The best sparrow presence model used a variable derived from raw spectral reflectance values associated with plots where sparrows did not occur, while the best nest presence model used a combination of vegetation structure descriptions. A second nest model, built using high resolution remote sensing data that organized marsh characteristics into high and low …