A Typology of Indigenous Engagement in Australian Environmental Management Implications for Knowledge Integration and Social-ecological System Sustainability

Indigenous peoples now engage with many decentralized approaches to environmental management that offer opportunities for integration of Indigenous Ecological Knowledge (IEK) and western science to promote cultural diversity in the management of social-ecological system sustainability. Nevertheless, processes of combining IEK with western science are diverse and affected by numerous factors, including the adaptive co-management context, the intrinsic characteristics of the natural resources, and the governance systems. We present a typology of Indigenous engagement in environmental management, derived through comparative analysis of 21 Australian case studies, and consider its implications for the integration of IEK with western science. Sociological and rational choice institutionalism underpin our analytical framework, which differentiates on three axes: (1) power sharing, incorporating decision making, rules definition, resource values and property rights; (2) participation, incorporating participatory processes, organizations engaged, and coordination approaches; (3) intercultural purpose, incorporating purposes of environmental management, Indigenous engagement, Indigenous development and capacity building. Our typology groups engagement into four types: Indigenous governed collaborations; Indigenous-driven cogovernance; agency-driven co-governance; and agency governance. From our analysis of manifestations of knowledge integration across the types, we argue that Indigenous governance and Indigenous-driven co-governance provides better prospects for integration of IEK and western science for sustainability of social-ecological systems. Supporting Indigenous governance without, or with only a limited requirement for power sharing with other agencies sustains the distinct Indigenous cultural purposes underpinning IEK, and benefits knowledge integration. We conclude by advocating that the typology be applied to test its general effectiveness in guiding practitioners and researchers to develop robust governance for Indigenous knowledge integration in environmental management.


INTRODUCTION
Indigenous peoples' engagement in environmental management is increasing globally as a result of recognition of their rights, interests, and the worth of their Indigenous Ecological Knowledge (IEK) (Hill et al. 1999, Houde 2007, Nakanura 2008).Recent developments in considering environmental management as an aspect of complex social-ecological system dynamics has identified that integration of IEK with western science can enhance system attributes associated with sustainability (Berkes 2004, Folke 2004, Walker and Salt 2006, Carpenter et al. 2009, Chapin III et al. 2010).We recognize that sustainability has many dimensions and meanings, and adopt here Dawson et al.'s (2010Dawson et al.'s ( :2845) ) definition that "a sustainable SES is one that, over the normal cycle of pressures and disturbance events, maintains its characteristic diversity of major functional groups, processes, services and utility thereby ensuring its capacity to endure".Bohensky and Maru's (2011) review of a decade of international literature on the integration of Indigenous knowledge and science concluded that there remains a lack of clarity and empirical evidence that can help distinguish how indigenous knowledge and knowledge integration contribute most to resilience.Resilience is recognized alongside adaptability and transformability as a key determinant of system dynamics and sustainability (Walker et al. 2006, Gooch andWarburton 2009).
In Australia, Indigenous peoples engage in environmental management with multiple stakeholders (governments, scientists, producer groups, conservationists, and others) through a range of mechanisms: natural resource management (Roughley and Williams 2007); native title agreements (Hill 2006, Agius et al. 2007); Indigenous and co-managed protected areas (Muller 2003, Nursey-Bray and Rist 2009, Ross et al. 2009); endangered species initiatives (Nursey- Bray 2009); water planning processes (Jackson 2009, Jackson andAltman 2009); and in the pursuit of cultural objectives conventionally in the absence of non-Indigenous actors (La Fontaine 2006).Understanding approaches to knowledge integration in these diverse Australian examples may help build global understanding of the processes of IEK and western science integration to manage for sustainability.However, http://www.ecologyandsociety.org/vol17/iss1/art23/integration is affected by diverse factors including approaches to inquiry into IEK, adaptive co-management context, and the intrinsic qualities of the natural resource (Agrawal 2002, Davies 2003, Telfer and Garde 2006, Davies and Holcombe 2009, Wohling 2009, Davis and Ruddle 2010).Governance forms, including power relationships, multi-scalar polycentric connections, orchestration of networks, and negotiation of diverse Indigenous and state institutions, shape interactions that block, bridge or enable integration of IEK and western science (Olsson et al. 2004, Folke et al. 2005, Olsson et al. 2006, Ostrom 2007).
Australian Indigenous peoples assert sovereign rights and interests to collective self-determination and control over their customary estates, despite profound impacts from the colonial processes of territorial acquisition and state formation.The policy mechanisms established by Australian governments to respond to Indigenous claims have resulted in Indigenous control and responsibility for the environmental management of about one-fifth of the continental land mass, much of which is of high conservation significance (Hibbard and Lane 2004, Altman et al. 2007, Lane and Williams 2009).However, Indigenous peoples suffer capacity constraints in meeting their environmental management needs for these lands (Aboriginal & Torres Strait Islander Social Justice Commissioner 2009).The socioeconomic disadvantage faced by Indigenous peoples is a key constraint, reflected in the life expectancy gap with non-Indigenous people of twelve years (Australian Institute of Health and Welfare 2010).Projects that seek to engage Indigenous peoples in environmental management always encounter the politics of Indigenous rights and the context of Indigenous socioeconomic disadvantage as key determinants of success (Palmer 2006, Davidson andO'Flaherty 2007).These distinctive features suggest that characteristics of Indigenous peoples' engagement will differ significantly from the general characteristics of "public" engagement in environmental management.
Typologies are useful for interrogating characteristics and building practice and theory in environmental management; for example, a recent typology of collaboration provides guidance for conveners on designing types of collaboration for solving particular types of problems, and for theoreticians on choosing between frameworks (Margerum 2008).Many existing typologies differentiate on the basis of a power sharing continuum of participation from passive information dissemination to citizen empowerment (Arnstein 1969, Head 2007, Reed 2008).Others differentiate on the basis of purposes, for example between pragmatic versus normative participation, between diagnostic versus co-learning, and between planning-centered and people-centered (Michener 1998, Lynam et al. 2007, Reed 2008).Reed (2008) found that these typologies assist in unpacking the loaded ideological interpretations and diverse methodologies for participation, thereby providing assistance in choosing a participatory method.Nevertheless, existing typologies do not address the issue of Indigenous rights, and the context of Indigenous socioeconomic disadvantage as previously noted.There is currently no typology of Indigenous engagement in environmental management in Australia, despite the proliferation of engagement mechanisms and examples, and the recognized relevance of IEK and western science integration for sustainability (Natural Resource Management Ministerial Council 2010).
Our research goal was to develop a typology that would be useful in interrogating the characteristics of Indigenous engagement in Australian environmental management, analyze approaches to integration of IEK and western science that occurred organically as part of the engagement, and consider implications for management of sustainability in social-ecological systems (SES).We first present the theoretical foundations and definitions of governance, Indigenous governance, and IEK from which we conduct our research, followed by the methods for case study selection and analysis.A description of the typology, the four types, and differences between them follows.We subsequently present our analysis of the influence of governance type on integration of IEK and science.Our conclusion considers implications of the typology for theory and practice of Indigenous engagement and knowledge integration for sustainability in SES.

Theoretical foundations and definitions
Governance is defined as the structures and processes by which people in societies make decisions and share power (Folke et al. 2005, Lebel et al. 2006, Winter 2006, Ostrom 2007).Environmental governance, the making of societal decisions about the environment, is currently developing new multilevel, polycentric forms, partly through governmentdesigned decentralization, and also by community-led development of new multilevel institutions in response to global changes (Dietz et al. 2003, Selin and VanDeveer 2009, Cundill and Fabricius 2010, Hill et al. 2010).In Australia, this global trend has manifested in significant rescaling of environmental governance, mixing "top-down" directives from government with "bottom-up" approaches in which citizens participate directly in policy formulation and implementation (Lane et al. 2009).These new forms of governance display significant attention to mechanisms for integrating multiple knowledge systems, including IEK, to manage for sustainability (Folke et al. 2005, Ballard et al. 2008).
In considering the features of Indigenous knowledge and governance systems, we adopt Martinez-Cobo's (1986) working definition of Indigenous peoples as those who, having a historical continuity with precolonial societies that developed on their territories, consider themselves distinct from other sectors of the societies now prevailing on parts or all of those territories.These distinct Indigenous societies are http://www.ecologyandsociety.org/vol17/iss1/art23/recognized as the holders of IEK, defined as a cumulative body of knowledge, practice, and belief evolving by adaptive processes and handed down through generations by cultural transmission (Berkes 2004).IEK forms part of governance and cultural systems that encompass language, naming, and classification systems, resource use practices, rituals, spirituality, and worldviews (International Council for Science 2002).In Australia, Indigenous peoples maintain distinct forms of governance despite their location in a postcolonial frame in which the nation-state has overarching sovereign power (Smith and Hunt 2008).Distinctive features include an emphasis on networks, nodal modes of leadership within these networks, and dispersed distribution of powers among self-defined social groups.Australian Indigenous governance systems connect IEK with cultural rights: Knowledge has a powerful dialectic element: it points to country and to relationships between the possessor of knowledge and the country to which it refers.Performance of knowledge (through song, dance, story, history, use of country) is a performance of ownership: it identifies the person as one with rights and responsibilities to that country (Rose 1994:2).
Recognition that diversity in Indigenous governance influences how IEK is integrated into environmental management stimulated our interest in developing a typology (Ross and Pickering 2002, Fernandez-Gimenez et al. 2006, Sveiby 2009).Multiple frameworks related to governance were identified as potentially relevant, including multilevel, effective, adaptive, and collaborative governance, drawing attention to diverse attributes including legitimacy, accountability, cross-scale connectivity, problem-solving arenas, and leadership (Folke et al. 2005, Head 2009, Lockwood et al. 2009, Lockwood 2010).We synthesized these multiple analytical frameworks of governance in comanagement through recognizing their roots in: (1) rational choice institutionalism, drawing on the assumption in neoclassical economics that actors behave as utility maximizers to rank their priorities within institutional constraints; and (2) sociological institutionalism, drawing on constructivism and the assumption that political and cultural environments alter actors' views of utility (Sandström 2009).Rational choice institutionalism directs attention to structures, including property rights, other rules and rule-making, while sociological institutionalism emphasizes functions, including problem-solving processes, capacity building, and relationships (Plummer and FitzGibbon 2004, Carlsson and Berkes 2005, Ostrom 2007, 2008, Ostrom and Cox 2010, Hill 2011).Three key concepts are common to both frameworks: power-sharing, participation, and process (Plummer andFitzGibbon 2004, Sandström 2009).We utilized these three concepts in our analysis, focusing the "process" dimension onto intercultural purposes, in recognition of the context of Indigenous rights, Indigenous socioeconomic disadvantage, and the distinctive features of Indigenous governance (Porter 2004, Natcher et al. 2005, Palmer 2006, Hunt et al. 2008).Our use of the term "intercultural" draws on recognition of the relational dimensions of social forms that develop through the interaction of Indigenous and non-Indigenous societies, providing opportunities for innovation (Hinkson and Smith 2005, Merlan 2005, Bakker and Bridge 2006, Suchet-Pearson and Howitt 2006).

Case study selection and analysis
The typology is based on pattern identification through comparative analysis of 21 Australian case studies in environmental management (Table 1).The case studies were selected using a variation sampling method, aiming to provide geographical spread (Figure 1) and encapsulate a diversity of settings including within protected areas, natural resource management and research projects, terrestrial and marine settings, and both government and nongovernment initiatives (Liamputtong and Ezzy 2005).Our selection of case studies was not specifically influenced by the approaches to knowledge integration that they used and none of the case studies had knowledge integration as their primary goal.The availability of data also affected choice of case studies.Table 1 lists the key organizations and instruments underpinning the Indigenous engagement, including an array of agreements, legislation, regulations, plans, frameworks, and oral tradition.Forms of IEK involved in each case study are also listed.
Data for the analysis of the case studies included formal published plans, reports, journal articles, web pages, newspaper articles, and a range of informal internal reports, memoranda, and meeting minutes.At least one author had direct interaction with each of the case studies either as a scholar or practitioner, and contributed participant observation data and/or empirical insight.
The data were used to classify each case study according to the three dimensions of the analytical framework, each with several categories: theme identification to generate initial propositions, followed by filtering of the propositions through the case studies and the literature, and subsequent further refinement (after Margerum 2008, Robinson 1998).The classification was based on data sources available in 2009, which were updated in 2010, and therefore represents the status of each engagement at that time.As SESs are recognized as highly dynamic (Walker et al. 2006, Chapin et al. 2010), the classification of each case study in the engagement might be different at a later or earlier stage.

Fig. 1. Location of case studies in Australia
Summaries of differences among the types across the three dimensions and associated categories in our analytical framework are shown in Table 2.The "positions" of each type on axes representing the three dimensions in the analytical framework are shown in Figure 2. We assigned case studies (Table 1) to the type where they demonstrated most consistency with these summaries of differences in all categories within a type (Table 2).The assignments of the case studies within the typology are best viewed as alignments, which may change over time.We addressed two questions relevant to integration of IEK and western science for environmental management: (1) what have been the forms of IEK involved in our case studies; and (2) how has IEK and western science integration been manifested under each typology?We again used techniques of conceptual cluster analysis to consider differences among the case studies regarding manifestations of IEK and western science integration.

The four types of Indigenous engagement in environmental management
Indigenous-governed collaborations (IGs)  ACoG approaches usually arise from formal processes to recognize and define Indigenous rights, such as through native title or recognition of Aboriginal joint management of protected areas.Agency-driven models require the power to sit within the organization, through mechanisms such as boards or committees of management.Indigenous governance mandates sharing power beyond organizations and into wider networks of families and communities (Smith and Hunt 2008).
In the ACoG types, the agency seeks to meet the expectations of a wide array of stakeholders, such as conservation groups, fishers, tourism operators and others.The complexity and competition within such an institution may crowd out Indigenous perspectives.Agency governance (AG) AG approaches regard Indigenous people as a stakeholder sector, similar to farmers or industry actors, rather than as a group requiring a different approach associated with their claims to a distinct political status within the nation-state.For example, The Wilderness Society's (TWS) Indigenous Conservation Program places their goals of environmental preservation to the fore in engagement with Indigenous people, and seeks to build alliances with Indigenous people

Illustrative examples of differences between the types
Table 2 summarizes the difference between the types across the analytical categories, and Table 3 presents examples from the case studies that illustrate these differences.Space precludes presenting examples from all 40 cells in the matrix generated by the four types and ten categories.Instead, we describe the spectrum across the three dimensions of power

Rulesdefinition
ICoG: Rules defined by Indigenous peoples as constrained by partner requirements Djelk Rangers: rules within Bawinanga Aboriginal Corporation, which host the Djelk Rangers, are mediated within the informal institution of the "smoko" room.Local Aboriginal elites with power based on seniority, Indigenous knowledge and customary authority negotiate with Aboriginal neo-elites whose power derives from modernizing projects, including the duties of the Djelk Rangers to protect biodiversity within parameters set by their government funding agencies.

Resource cultural values and property rights
ACoG: Resources of contested value between industrial and Indigenous economies; Indigenous property rights defined and contained Eastern Kuku-Yalanji ILUA: focuses on recognition and regulation of people's native title rights as custodians and managers of traditional country within highly contested tropical landscapes, while delivering statutory Aboriginal ownership of some areas of land.AG: Resources highly valued by industrial economy, e.g., water in heavily used systems; few Indigenous property rights Wild Rivers: the marginalization of Indigenous peoples from Wild Rivers decision making reflects legislative regimes that have placed the control and regulation of water with the Crown and its agencies.

Participatory processes and functions
ACoG: Indigenous rights-based negotiation, e.g., for Native Title Acts, cultural heritage clearances Wet Tropics Regional Agreement: Interim Negotiating Forum constituted an Aboriginal Negotiating Team and a Government Negotiating Team.
ICoG: Inclusivity that engages Indigenous people in new environmental institution-building Dhimurru: stresses their pride in their model of partnerships founded in Yolngu culture and the customary ways Yolngu care for country.This requirement of Indigenous agency to drive participation has resulted in the new environmental institution of a formal IPA Advisory Group of government and other stakeholders.IG: Inclusivity that engages Indigenous people in new Indigenous institutionbuilding Murray Lower Darling River Indigenous Nations: partnerships all contain acknowledgements of the traditional owners, their specific relationships with country, and the importance of their decision making structures.

Coordination
ACoG: Whole-of-government coordination Healthy Country Healthy People: multiple departments coordinate delivery across environmental, socio-cultural and economic goals through a Steering Committee of government officers, with Indigenous organizations in an advisory role.ICoG: Indigenous holistic place-based community empowerment Djabugay Indigenous land management techniques: arise from a perspective that places an Indigenous world view at the centre.Eleven aspects of Indigenous land management emanate from this centre: tradition and Laws/lores; elders; spiritual; land and sea country; employment; youth; health; obligation and responsibility; community rangers; education; and cultural training.

Intercultural purpose
Environmental management purposes AG: Usually single or dual purpose, managing specific threats, species or areas TWS Indigenous Conservation Program: describes their purpose in working with Indigenous traditional owners as to achieve protection and management of Cape York Peninsula and the return of homelands to the control and management of its traditional owners; ICoG: Multiple purposes, reflecting Indigenous-centred holistic community planning Ngarrindjeri Nation Sea Country Plan: has multiple goals, ranging across healthy people, healthy country, equitable benefit sharing, health and spiritual well-being of Ngartjis (special animals), ongoing occupation of country and respect for law.

Purpose of Indigenous roles
ACoG: Equity plus recognition of specifically defined rights Urannah Station: Indigenous engagement at Urannah Station, part of the Indigenous Land Corporation's (ILC) program of works, is aimed at achieving equity for Indigenous Australians through halving the employment gap within a decade.ICoG: Reconciliation, long-term, lasting resolution of issues Victorian Native Title Settlement Framework: explicitly recognizes reconciliation within its objects, which encompass social and economic upliftment, grievance resolution and rights recognition. (con'd)

Capacitybuilding
ICoG: Focus on Indigenous and non-Indigenous functionality in both Indigenous and settler society Lake Condah Sustainable Development Project: a sophisticated approach to simultaneously build Indigenous and nonindigenous capacity and pathways to sustainability has been developed through Lake Condah Learning.IG: Focus on building trust and relationships among diverse Indigenous groups Northern Australia Indigenous Land and Sea Management Alliance: regularly hosts events that bring together Indigenous peoples from across the north to build common agendas, such as the Northern Australian Indigenous Experts Water Futures Forum.
sharing, participation, and intercultural purpose, with reference to the illustrative examples presented in Table 3.

Power sharing
The spectrum from little power sharing in IG and AG types (in which Indigenous peoples and agencies retain power respectively), to substantial power sharing in ICoG and ACoG, both determines and reflects the arrangements for decision making, rules-definition, and resource cultural values and property rights (Figure 2).Table 3 illustrates the differences between decision making within the ICoG type (Miriuwung Gajerrong Cultural Planning Framework), which promotes Indigenous governance, and the ACoG type (Cape York Peninsula Tenure Resolution), which promotes negotiated agreement.The complexity of rules-definition in ICoG is illustrated by the Djelk Rangers (ICoG) informal forum for traditional and modernizing influences to negotiate ascendancy (Altman 2008).
In relation to resource values and rights, the power sharing spectrum ranges from situations in which the Indigenous rights are insecure and the natural resource highly valued in industrial economies, to those in which Indigenous peoples have secured recognition of ownership of resources, generally of lesser value in industrial economies, through native title or other legislation.Table 3 illustrates the difference between the Eastern Kuku-Yalanji (ACoG), with contested resources (Stork et al. 2008), and the Wild Rivers case (AG), where the control of water has been vested in agencies of the Australian nation-state (Jackson and Altman 2009).Nevertheless, some ICoG types are emerging even where Indigenous resource rights are insecure, reflecting a focus on the broader reconciliation context; the Victorian Native Title Settlement Framework is an example.

Participation
Participation ranges on a spectrum from inclusive to narrowly defined across the three categories of participatory processes, organizations engaged, and coordination approaches (Figure 2).The Wet Tropics Regional Agreement illustrates the ACoG types' participatory focus on formal processes and those with specifically defined interests (Table 3).Dhimurru's non-Indigenous Advisory Group illustrates the ICoG focus on inclusivity that builds new environmental institutions, whereas MLDRN illustrates the IG focus on new Indigenous institutions (Table 3).The Indigenous Water Policy Group convened by NAILSMA is another example of new Indigenous institution building (Jackson and Altman 2009).Approaches to coordination vary from none in the AG types ("the silo") through whole-of-government approaches (defined as specific strategies to link government agencies' roles and overcome the silos), to Indigenous holistic coordination in the IG types.Healthy Country Healthy People (ACoG) illustrates whole-of-government coordination by government agencies developing shared approaches to delivering their sectoral goals.The Djabugay (ICoG) case study illustrates the Indigenous holistic approach to coordination through Indigenous worldviews of the inherent linkages between Indigenous people, the environment, and Indigenous culture (Talbot 2005).

Intercultural purpose
Approaches to intercultural purpose vary across a spectrum from IG's focus on advancing distinct Indigenous societies' and cultures' contributions to the nation-state, to AG's focus on achieving Indigenous equity within the culture of the nation-state (Figure 2).Indigenous people consistently highlight the holistic nature of their engagement and knowledge, of which environmental purposes form part. Government environmental agencies, on the other hand, usually have specific responsibilities mandated by legislation such as threatened species management, without links to policy arising from other legislation, such as education or business development (Boxelaar et al. 2006).Environmental nongovernment organizations (ENGOs) similarly have specific mandates reflected in their organizational structures and fundraising appeals.Table 3 illustrates these differences between the confined purposes of the TWS Indigenous Conservation Program (AG), and the Ngarrindjeri's (ICoG) broad goals across healthy people, healthy country, spiritual well-being and more.The purposes of Indigenous roles vary similar across a spectrum from AG's concern with equity, as illustrated by the ILC's program at Urranah Station, to ICoG's  3).
This spectrum of intercultural purposes is associated with diversity in theories about development for and with Indigenous peoples (Hunt 2008).The continuum ranges from development as modernization and technology transfer (Sillitoe and Marzano 2009), through human capability development and asset deployment (Sen 2005, Davies et al. 2008), to concepts of empowerment and participatory practice (Borrini-Feyerabend et al. 2004, Davies andHolcombe 2009), community development, Indigenous hybrid economies (Altman 2007) and Indigenous "modernities" as hybrid responses based on Indigenous cultures (Robins 2003, Walker et al. 2007).Table 3 illustrates the differences between Mornington Station's (AG) focus on transfer of modern technologies for fire management, and the Kimberley Appropriate Economies Roundtable (ICoG) focus on empowerment of Indigenous peoples through their own planning.
Differences in terms of whose capacities most need improvement, the Indigenous or non-Indigenous peoples, emerged across the case studies.AG types focus on improving Indigenous capacities to operate in "settler societies", where settlers are defined as non-Indigenous peoples and their descendants in Australia who have multicultural origins.ACoG and ICoG types recognize the need to improve the capacity of both Indigenous and non-Indigenous people to operate across Indigenous and settler societies, while IG focuses on building capacity of Indigenous peoples.Table 3 illustrates differences between the Lake Condah Sustainable Development (ICoG) focus on both Indigenous and non-Indigenous capacity, and NAILSMA's (IG) attention to building capacity of Indigenous peoples.

Manifestations of IEK and western science integration
Virtually all case studies included trips to the countryside where intergenerational and cross-cultural IEK transfer occurred regarding Indigenous cultural sites, bush foods, location of cultural boundaries, storylines and places, and historical events.Many documents included Indigenous art and language names for key features and biota (Table 1).Systematic documentation of IEK through digital video databases and spatially-located mapping of Indigenous use and occupancy is underway in several of our case studies across the IG, ICoG, and ACoG types, including NAILSMA, MLDRIN, Ngarrindjeri, and the Wet Tropics (Hill and Williams 2009, Standley et al. 2009, Tobias 2010).Nevertheless, we found differentiation between the types on four dimensions: methods for integration between IEK and western science; appearance of amalgams representing new, converged forms of IEK and science knowledge; means for managing the integrity of IEK; and means for integration of IEK and science into environmental management (Table 4).
The IG and ICoG types concentrate on collaboration between IEK and western science, with an emphasis on amalgams such as ethnoecology leading to some blurring of the distinction between the two.Amalgamated forms are often distinctly http://www.ecologyandsociety.org/vol17/iss1/art23/Indigenous, such as the highly innovative visual and spatial modes of communication, including paintings of country on scientifically-derived vegetation maps, arising from IPAs (Hill et al. 2011).Despite this convergence, IG and ICoG pay great attention to Indigenous methods for ensuring the integrity of IEK.For example, NAILSMA is engaged in advocacy for Indigenous rights and titles over IEK.Yolngu specify in the Dhimurru IPA that all decisions must be made by those who own knowledge under customary law.This concern for integrity is reflected in recognition that both knowledge systems need to be applied to environmental management.MLDRIN, for example, expresses a specific principle: "that Indigenous science and Western science each have their own value and role in caring for country" (Weir 2009:116).
ACoG and AG types typically maintain the distinction between IEK and western science, through separate documentation initiatives, and clearly specified interactions, such as "validation" of IEK by science (Evans et al. 2009).New amalgams, where they do appear, are more clearly in the western science domain, for example jointly authored papers or reports written to target both technical and Indigenous audiences.The AG and ACoG types do not focus as strongly on ensuring the integrity of IEK; where respect for Indigenous law is articulated, practical means of enabling this are often unclear.The emphasis is on agreements about IEK utilization, rather than customary law maintenance and enhancement.The collection of IEK often does not feed into the agency environmental management strategies.In the Wet Tropics Regional Agreement example, an Aboriginal cultural mapping project using digital video and spatially-located data under traditional owner control is not integrated into management (Roder 2008).Aboriginal people in the Wet Tropics are wary of science, defining "scientists" as "knowledge takers" in the Regional Agreement, and adopting protocols aimed at controlling, rather than facilitating access to and integration of, their IEK (Wet Tropics Management Authority et al. 2005).
Figure 2 highlights the zone of convergence of IEK and western science that emerges more strongly in the IG and ICoG types.Nevertheless, SESs are recognized as dynamic (Walker et al. 2006), and we detected increasing convergence in some case studies, although it was beyond the resources of the project to systematically examine change over time.For example, an Indigenous-driven ethnobotany initiative is a recent manifestation in the Wet Tropics (Hill et al. 2011)

DISCUSSION
Our analysis of manifestations of knowledge integration suggests that IG and ICoG types provide better prospects than ACoG and AG types for integration and convergence of IEK and western science.We recognize that both the concept of IEK and approaches to integration are highly contested.Scientists call for greater efforts in the definition and validation of the integrity of IEK knowledge claims, and some Indigenous groups have also sought validation of their IEK knowledge claims by science (Evans et al. 2009, Gratani et al. 2011).Other Indigenous people resist scientific efforts to integrate with IEK as a result of concerns that power relations embedded in IEK projects will further marginalize their interests (Smith 1999, Agrawal 2002, Davis and Ruddle 2010).Nevertheless, connections between ownership of IEK and ownership of land and sea in Australian Indigenous cultures trigger significant responsibilities for maintaining control (Rose 1994).This issue of control emerged as linked to knowledge integrity in our analysis; IG and ICoG types provide the customary law authority necessary for Indigenous people to develop innovations that deploy their IEK while maintaining its integrity.Supporting Indigenous governance without, or with limited, requirement for power sharing with other agencies sustains the distinct Indigenous cultural purposes underpinning IEK, and benefits knowledge integration (Figure 2).
Previous experiences in the integration of IEK with western science have demonstrated that promoting a diverse cultural foundation can enhance the social-ecological system attributes associated with sustainability (Berkes et al. 2000, Folke 2004, Walker and Salt 2006).Our analysis that Indigenous governance provides better prospects for such knowledge integration potentially links Indigenous governance with sustainability in SES.Such links have been suggested previously.Delegates at an Australian conference on Indigenous governance in 2002 concluded that socioeconomic sustainability for Indigenous peoples only improves when real decision making power is vested in their communities through effective governing institutions that reflect Indigenous cultural values and beliefs (Reconciliation Australia 2002).Policy trials delivering greater Indigenous governance over welfare and education are now underway in Cape York Peninsula, reversing a trend elsewhere in Australia for policy interventions that remove Indigenous control (Altman andJohns 2008, Lane andWilliams 2009).The potential linkages between Indigenous governance and sustainability in SES, and the role of knowledge integration in mediating any such linkages, are worthy of further investigation.
Application of the typology is likely to enable both better design and more robust analysis of Indigenous engagement in diverse environmental management contexts.Practitioners should find the AG types suitable to meet a specific agency mandate and accountability where engagement of the http://www.ecologyandsociety.org/vol17/iss1/art23/Indigenous polity and culture is not critical (for example, agency mandates discussed in Hill andWilliams 2009, Ross et al. 2009).For researchers, the theoretical underpinnings of technology transfer and development as modernization should provide an appropriate basis for analysis (Servaes and Obijiofor 2007).On the other hand, the ICoG type's characteristics of Indigenous time frames, traditional decision making, and coordination would challenge a situation in which the accountability requirements of the agency necessitate that projects meet inflexible time frames and pre-determined outcomes.The theoretical underpinnings of Indigenous empowerment, hybrid economies, and community development should provide an appropriate basis for analysis of outcomes ( Altman 2007, Wilmsen et al. 2008, Davies and Holcombe 2009).Nevertheless, all SESs are recognized as dynamic (Walker et al. 2006), including our case studies, and this dynamism will influence application of the typology.For example, we hypothesize that Indigenous influences on governance increase over time, as previously discussed.
Further research is warranted to test the relative advantages and disadvantages of consistency within each type, and to analyze the driving factors and the conditions to which they are best suited, and which may change with time.

CONCLUSION
Our typology, based on analysis of 21 Australian case studies of Indigenous engagement in environment management, helps to distil the impact of governance on integration of IEK and western science in the management of SES.We differentiated four types of engagement: Indigenous-governed collaborations (IG); Indigenous-driven co-governance (ICoG); agencydriven co-governance (ACoG) and agency governance (AG).
Our analysis of the influence of type on knowledge integration suggests that IG and ICoG types provide better prospects than ACoG and AG types.The control necessary for Indigenous people to deploy their IEK while maintaining its integrity, and avoiding risks of the deployment being used to further marginalize their interests provides the underpinning logic.Ownership of IEK is connected to ownership of, and responsibility for, land and sea in Australian Indigenous societies (Rose 1994).Supporting Indigenous governance without, or with limited, requirement for power sharing with other agencies sustains the distinct Indigenous cultural purposes underpinning IEK, and benefits knowledge integration (Figure 2).The linkage between Indigenous governance and social-ecological system sustainability, suggested by this research, adds weight to the growing body of evidence highlighting culturally diverse governance as critical to sustainability, and is worthy of further investigation (Berkes 2004, Folke 2004).We argue that consistency of design across the categories within one type is likely to enable both better practice and more robust analysis of Indigenous engagement in diverse environmental management contexts.We advocate the application of the typology by policy makers and researchers, and look forward to future evaluations of its general effectiveness in guiding practitioners and researchers of scientific and Indigenous knowledge integration in environmental management.

Fig. 2 .
Fig. 2. Position of types on the three axes, namely participation, intercultural purpose, and power sharing, and the zone of convergence of western science and Indigenous Ecological Knowledge (IEK) that emerges in the Indigenous-governed and Indigenous-driven co-governed types

Table 2 .
Summaries of differences among types of Indigenous engagement in environmental management

Table 3 .
Illustrative examples of the summarized differences among the case studies according to the categories of analysis for the typology Cape York Tenure Resolution: process is headed by a decision making committee comprising three State Government Ministers, the Australian Conservation Foundation, The Wilderness Society, Balkanu and the Cape York Land Council.Decisions on land tenure outcomes are underpinned by Indigenous Land Use Agreements, and require negotiation and Indigenous consent, thereby empowering Indigenous law and custom.
Mornington Station: through the Ecofire Project, the Australian Wildlife Conservancy facilitates involvement of Indigenous community members, including provision of training in prescribed fire management using aerial incendiaries provided by the Fire and Emergency Services Authority.ICoG: Indigenous empowerment and community development Kimberley Appropriate Economies Roundtable: promoted theories of ecological economics and Indigenous governance, aimed at empowering Indigenous peoples and other citizens to build their own planning, decision making and governance capacity.

Table 4 .
Analysis of manifestations of Indigenous Ecological Knowledge (IEK) and science integration according to governance types