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Elton (1927) realized that, intuitively at least, nature was complex and stable. And that the last property contributed to the first. This idea was challenged mathematically by Gardner and Ashby (1970) and May (1972), and in the years following various models have attempted to reconcile these opposing views. Unlike previous mathematical approaches that demonstrated that simple stable systems are destabilized through added complexity, the approach presented herein began with a model that was unstable. This perspective provided allows model complexity and at the same time increased likelihood of mathematically stable. This novel observation suggested that ecosystem complication might stabilize a community. Within these models a system may be stable despite the coexistence of several competitors, in direct opposition to the Competitive Exclusion Principle. The hypothesis that the principle may not hold as an absolute generality beyond two competitors is proposed. This paradox may be explained by (1) interactions between competitors, (2) a keystone predator, or (3) a combination of the first two factors. / Graduation date: 1999

ABSTRACT EFFECT OF A WILDLIFE CONSERVATION CAMP EXPERIENCE IN CHINA ON STUDENT KNOWLEDGE OF ANIMALS, CARE, PROPENSITY FOR ENVIRONMENTAL STEWARDSHIP, AND COMPASSIONATE BEHAVIOR TOWARD ANIMALS by Sarah M. Bexell The goal of conservation education is positive behavior change toward animals and the environment. This study was conducted to determine whether participation in a wildlife conservation education camp was effective in positively changing 8-12 year old students’: (a) knowledge of animals, (b) care about animals, (c) propensity for environmental and wildlife stewardship, and (d) compassionate behavior toward animals. During the summer of 2005, 2 five-day camps were conducted at 2 zoological institutions in Chengdu, China. The camp curriculum was influenced by theory and research on the following: conservation psychology, social learning theory, empathy and moral development theory, socio-biological theory, constructivist theory, and conservation science. Camp activities were sensitive to Chinese culture and included Chinese conservation issues. Activities were designed to help children form bonds with animals and care enough about them to positively change their behavior toward animals and the environment. This mixed methods study triangulated quantitative and qualitative data from six sources to answer the following: 1. Did camp increase student knowledge of animals? 2. Did camp increase student caring about animals? 3. Did camp increase student propensity for environmental and wildlife stewardship? 4. Did camp affect student compassionate behavior toward animals? A conservation stewards survey revealed significant increases on pre-post, self-report of knowledge, care, and propensity. Pre-post, rubric-scored responses to human-animal interaction vignettes indicated a significant increase in knowledge, and stable scores on care and propensity. Qualitative data from student journals, vignettes, and end-of-camp questionnaires demonstrated knowledge, caring, and propensity, and revealed the emergent theme empathy. To address question 4, instructors tallied campers’ behavior toward animals using a student behavior ethogram. Occurrence of positive behaviors was inconsistent, but negative behaviors decreased, indicating campers were more conscious of behaviors to avoid. Field notes helped determine that camps were implemented as planned, therefore not interfering with goals of the camp. This study contributes to an emerging and critical knowledge base of effective strategies to promote conservation behavior.

Thesis (doctoral)--Swedish University of Agricultural Sciences, 2002. / Abstract inserted. Appendix includes reprints of a published paper and three manuscripts, each co-authored with a different author. Includes bibliographical references. Also partially issued electronically via World Wide Web in PDF format; online version lacks appendix.

This dissertation was motivated by the problem of pattern and scale in ecology. All chapters present models that aim at predicting species’ responses to habitat fragmentation. Chapters differ mainly in the nature of the responses being investigated: spatial variation in abundance, or dispersal. In each chapter, I illustrate how current models can be modified to incorporate species’ perception of the landscape. Three sources of bias have been examined here: interspecific variation in (i) ecological neighborhood, (ii) ecological generalization, and (iii) in the response to regional processes. I have deliberately moved away from traditional single-scale, patch-based measures of landscape connectivity. Great emphasis has been placed on the anthropogenic aspect of the landscape, and on the role of the landscape matrix. Habitat fragmentation is a common feature of most (if not all) biodiversity hotspots. I hope the tools shown here can serve as general approaches to study how species are differentially affected by habitat fragmentation, and to ultimately understand how disturbed landscapes can “filter” natural communities. / text

published_or_final_version / Ecology and Biodiversity / Master / Master of Philosophy

St. Lawrence Islands National Park (SLINP) is one of Canada’s smallest national parks. In order to secure a future for biodiversity, Parks Canada must therefore work beyond the park’s boundaries to engage area residents in conservation on private lands. Despite an increasing understanding of the distribution of species and habitat in the region surrounding SLINP, Parks Canada still has limited insight into the landowners upon whom conservation efforts depend. This study employed interviews with owners of large (>50 acre) parcels in areas of interest for conservation and a hermeneutic methodology to explore the dimensions of landowners’ relationships to the land. Findings suggest that landowners may adopt a land ethic when their values and connection to the land are threatened, but that their management actions are constrained by competing interests. Management recommendations are provided to assist Parks Canada in working with landowners towards a shared vision of conservation for the region.

This research project explores opportunities for sustainable design in New Zealand. Recently a new framework for sustainable design was proposed by environmental chemist Michael Braungart and architect William McDonough who suggest that the current paradigm of cradle to grave product development is unable to provide a solution to the world’s current ecological crisis, and a “cradle to cradle” framework is more appropriate. They suggest that their approach, based on examples from nature, ensures that all human activities have a positive ecological footprint, capable of replenishing and regenerating natural systems, as well as guaranteeing that we are able to develop a world that is culturally and ecologically diverse. A group of New Zealand scientists was asked to evaluate the Cradle to Cradle design framework in an attempt to determine the potential of this, or other sustainable approaches, to design New Zealand products. The key findings from these interviews are described and were utilised to propose a new sustainable design framework – “design for ecosystem function”. In design for ecosystem function, biodiversity is placed central to the design decision-making process, alongside human user needs. This framework was then used to help explore the relationship between science and design, while developing three new, innovative and ecologically beneficial products. The three products, or ecological interventions, represent a design response to a range of ecological problems. They include a toy to help children reconnect with nature in urban ecosystems, a trap to assist lizard monitoring and conservation, and a shelter designed to enhance tree survival, and the colonisation of biodiversity in native forest restoration plantings.

This research project explores opportunities for sustainable design in New Zealand. Recently a new framework for sustainable design was proposed by environmental chemist Michael Braungart and architect William McDonough who suggest that the current paradigm of cradle to grave product development is unable to provide a solution to the world’s current ecological crisis, and a “cradle to cradle” framework is more appropriate. They suggest that their approach, based on examples from nature, ensures that all human activities have a positive ecological footprint, capable of replenishing and regenerating natural systems, as well as guaranteeing that we are able to develop a world that is culturally and ecologically diverse. A group of New Zealand scientists was asked to evaluate the Cradle to Cradle design framework in an attempt to determine the potential of this, or other sustainable approaches, to design New Zealand products. The key findings from these interviews are described and were utilised to propose a new sustainable design framework – “design for ecosystem function”. In design for ecosystem function, biodiversity is placed central to the design decision-making process, alongside human user needs. This framework was then used to help explore the relationship between science and design, while developing three new, innovative and ecologically beneficial products. The three products, or ecological interventions, represent a design response to a range of ecological problems. They include a toy to help children reconnect with nature in urban ecosystems, a trap to assist lizard monitoring and conservation, and a shelter designed to enhance tree survival, and the colonisation of biodiversity in native forest restoration plantings.