Private Nature Reserve Research Articles

Impacts of Supplemental Feeding on Sunbird-Pollination Systems in Young Fynbos Varies with Floral Abundance.

Supplementary sugar-water feeding offers nectarivorous birds a source of spatially concentrated food, as opposed to the dispersed food available in flowers. This could impact bird visits to native flowers and alter plant-bird mutualisms, particularly in young post-fire vegetation. This study examined the effects of sugar-water feeders on nectarivorous birds and their plant mutualists in young (burned 18 months previously) and transitional vegetation (burned 5 years previously). A supplementary feeding experiment was conducted at Grootbos Private Nature Reserve in South Africa, using sugar-water feeders when floral abundance was low (winter) and high (spring). We compared bird abundance and visitation rates to flowers before, during, and after feeder presence in both seasons. The use of sugar-water feeders by nectarivorous birds was inversely related to floral abundance, with 679 bird visits (6.94 ± 1.40 bird visitation rate per hour) to feeders in winter and only 90 visits (0.41 ± 0.16 visitation rate per hour) during spring. Bird visits were higher at flowers than at sugar-water feeders, in both seasons. Sugar-water feeders did not influence the visitation rate of sunbirds to flowers in both seasons, contrasting with findings from areas abutting suburbia, suggesting that feeder influence on bird visitation rate may not be apparent in areas with no history of sugar-water feeders. We find that low numbers of feeders do not necessarily compete with natural nectar resources but may instead provide birds with an additional food source, particularly when floral resources are low.

Spectral imaging of grass species in arid ecosystems of Namibia

Grasslands across the African continent are under pressure from climate change and human activities, particularly in arid ecosystems. From a remote sensing perspective, these ecosystems have not received much scientific attention, especially in Namibia. To address this knowledge gap, various remote sensing methods were implemented using new generation spaceborne imaging spectrometers amongst others. Therefore, this research provides a first methodological approach aimed at mapping and evaluating the distribution of grasslands within two private nature reserves, namely, the NamibRand Nature Reserve (NRNR) and ProNamib Nature Reserve (PNNR) with surrounding farmlands on the edge of Namib Sand Sea. The multi-sensor approach utilizes Mixture Tuned Matched Filtering (MTMF) and incorporated spectral information collected in the field to analyze grasslands. The research involves a sensor comparison of multispectral Sentinel-2 and PlanetScope data, hyperspectral data from Environmental Mapping and Analysis Programme (EnMAP) and PRecursore IperSpettrale della Missione Applicativa (PRISMA) and an additional data fusion product derived from Sentinel-2 and EnMAP imagery based on a Smoothing Filter-based Intensity Modulation Hypersharpening method (SFIM-HS). Additionally, a unique spectral library of collected field spectra was established and inter-species spectral separability and intra-species spectral homogeneity was analyzed. This library presents newly published spectra of individual species. Due to dry initial conditions, the calculated spectral separability of individual grasses is limited, making only a mean endmember feasible for partial unmixing. The validation results of satellite comparison show that data fusion products (R2 = 0.51 with Normalized Difference Vegetation Index (NDVI); R2 = 0.66 with Soil Adjusted Vegetation Index (SAVI)) are more suitable for mapping arid grasslands than multispectral or hyperspectral data (all R2 < 0.35). More research is required and potential methodological adjustments are discussed to further investigate the spatio-temporal dynamics of arid grasslands and to aid conservation efforts in the Greater Sossusvlei-Namib Landscape in line with the United Nations Decade of Restoration.

A past–present–future lens of environmental change: blending applied paleoecology and participatory system dynamics modeling at a conservation site in the Cape Floristic Region, South Africa

Landscapes are social–ecological systems (SESs) that produce ecosystem services, which change over time in response to environmental, biotic, and social drivers. Failure to consider this variability, and the feedbacks that can stabilize or destabilize systems, can have consequences for sustainable ecosystem services provision. This study applies a conceptual meta-framework, past–present–future lens, to interpret changes in land cover and ecosystem services within the Cape Floristic Region (CFR) of South Africa. Paleoecology (fossil pollen, spores, and charcoal) and participatory system dynamics modeling were used to explore long-term variability in provisioning ecosystem services (plant biodiversity) and the drivers of this variability (fire and herbivory) at Elandsberg Private Nature Reserve (Elandsberg PNR). From ca. 1800s, the paleoecological record suggests that environmental changes, particularly a transition to unpalatable Elytropappus-dominated vegetation, were driven by grazing and that an ecological threshold was crossed in ca. 1950s due to agricultural intensification. Participatory system dynamics was used to identify feedbacks in the dynamic SES structure. The ecological model replicates the paleoecological results and, furthermore, suggests that in the future, returning the system to within historical ranges variability may require sustained reductions in both grazing and fire over decades. This innovative approach blends paleoecology and participatory system dynamics to provide an evidence-based understanding of temporal variability and feedbacks for policymakers and land-use managers to inform sustainable land management.

Evolving shared value, sustainability and the leadership challenge: Grootbos Private Nature Reserve

Learning outcomes The learning outcomes of this study are to assess the shared value model and elaborate on new multi-stakeholder approaches to business, where the stakeholders include the founders, investors, partners, employees, clients and the surrounding community; to consider the synergies between community development, environmental stewardship, sustainable business practices and the long-term health of organisations and communities, considering these as the new fundamentals of business; to examine the interconnectedness of vision, strategy, purpose and leadership in creating and evolving the shared value model; to explore the relationship between shared value practices and collective well-being, and a specific reference to nurturing transformative experiences through nature, personal development and community upliftment is made; and to assess Grootbos’ ability to translate their purpose and value proposition into a strategy and sustainable vision with a possibility of Grootbos achieving global impact through its evolving model, beyond the founder. Case overview/synopsis This case study explores the evolution of Grootbos Private Nature Reserve and Foundation, a luxury hospitality lodge and award-winning ecotourism destination, from humble beginnings in the Western Cape of South Africa to a global example of conservation, community, commerce sustainability and transformative experiences. The establishing of Grootbos and its growth and widespread recognition can be attributed to the vision and inspirational leadership of its founder, Michael Lutzeyer. Although much success has been achieved in conservation, community upliftment and individual development of community members within their region, Lutzeyer’s and ultimately, Grootbos’ vision extended well beyond South Africa and aspired to elevate their floral kingdom and model of development and conservation to a global platform of awareness. Although a shared value vision and strategy had transformed the business, placing Grootbos as a leader in transforming their industry and sparking an evolution in the shared value model itself through the interjection of transformative experiences, the larger question remained: How can Grootbos extend the impact, towards people and planetary well-being, beyond the scope of their individual place-based business and their industry? And in terms of the dilemma Lutzeyer and the management team at Grootbos faced: How will this vision and global ambition continue through succession, beyond Luzeyer’s personal drive at the helm? Complexity academic level Experienced leaders within a graduate degree program, executive Master of Business Administration (MBA) or executive education in the areas of leadership development, strategy, shared value and international business. Supplementary material Teaching notes are available for educators only. Subject code CSS4: Environmental management.

Reproductive endocrinology, morphological traits, and sexual selection in a population of wild South African giraffes

Sex steroids are pervasive in mammals and evolutionarily conserved, but differences in the nuances of endocrine profiles characterize distinct species. Two sex steroids, testosterone and progesterone, feature prominently in the life history of mammalian taxa, but neither one has been analyzed from wild giraffes. Our study was designed to address this gap in knowledge by examining how these sex steroids are related to biological features and giraffe life history. We conducted the research at Rooipoort Nature Reserve a 44,000 ha private nature reserve in South Africa on a population of South African giraffes (Giraffa camelopardalis giraffa). Eleven adult giraffe cows and seven adult bulls were immobilized and various biological samples and morphological measurements were obtained. We analyzed both testosterone and progesterone using Ultra High Performance Liquid Chromotography – Tandem Mass Spectrometry (UHPLC-MS/MS). We found that non-pregnant females had lower progesterone concentrations than pregnant females and that those in the last trimester of pregnancy showed a slight drop in progesterone, as well as an increase in testosterone. Among males, chronological age was correlated with testicle size, testosterone concentrations, and ossicone volume. We propose that the progesterone decline functions partly to accelerate resumption of ovulation because giraffes become pregnant while lactating, and that the testosterone elevation provides an endocrine mileu for female defense of neonatal calves, given that lion predation is a major threat to calf survival. We suggest that male reproductive strategies are mediated by the age-related impacts of testosterone on growth in both body mass and ossicone volume as a consequence of sexual selection. We conclude by noting that the robust and solid ossicones of male giraffes function in mate competition as wedges that are used to topple opponents by raising their legs and placing them in an off-balanced position that can seriously injure them when falling to the ground.

Temporal partitioning and the potential for avoidance behaviour within South African carnivore communities.

Carnivora occupy many ecological niches fundamental to ecosystem functioning. Within this diverse order, carnivore species compete to establish dominance, ensure survival and maintain fitness. Subordinate carnivores must, therefore, adapt their behaviour to coexist with dominant species. One such strategy is the partitioning of temporal activity patterns. We aim to determine interspecific avoidance patterns among sympatric carnivores by examining coexistence along a temporal axis. We compared the temporal activity patterns of 13 carnivore species using multi-seasonal camera trapping data from four protected areas across South Africa: Associated Private Nature Reserves, Madikwe Game Reserve, Mountain Zebra National Park and Tswalu Kalahari Reserve. Interspecific coefficients of overlap in diel and core activity periods were calculated over the study period and during the wet and dry seasons. Furthermore, interspecific spatiotemporal behaviour was examined using time-to-event analyses. Our results showed that complete avoidance of diel activity patterns was rare among South African carnivore species. Most species were predominantly nocturnal and, therefore, diel activity overlap was high, whereas core activity overlap was significantly lower (p < .001). Diel activity overlap was significantly lower during the dry than wet seasons (p = .045). Lastly, evidence of spatiotemporal aggregation revolved around scavenging species. We show the importance of seasonality in the temporal avoidance behaviours of South African carnivores while highlighting the need for fine-scaled behavioural analyses. Overall, we show that the daily activity patterns of most subordinate South African carnivore species are not influenced by top-down forces in the form of competitional suppression and risk exerted by dominant species. If avoidance is required, it is more likely to manifest as fine-scaled avoidance of core activity periods. We suggest that the focus on core activity periods might be a more suitable tool for interspecific temporal partitioning research.

Survival trends (2008–2020) of three tree species in response to elephant impact, environmental variation, and stem wire-netting protection in an African savanna

Reduced levels of the survival of large trees (≥5 m height) in Africa’s savannas are a conservation concern, particularly where large trees co-occur with African elephants (Loxodonta africana). Elephants, as ecosystem engineers, can structurally modify and lesson the savanna large tree component. Wire-netting, which involves wrapping chicken-mesh around a tree’s main stem, has been used as a mitigation method to increase tree survival. We assess the trends in survival of three large tree species of conservation importance, namely Lannea schweinfurthii, Senegalia nigrescens and Sclerocarya birrea, within the Associated Private Nature Reserves (APNR) on the western boundary of the Kruger National Park, South Africa. We consider survival trends linked by both elephant impact, as well as external environmental factors. We conducted four field assessments on 2,758 trees in 2008 (baseline), 2012, 2017, and 2020, where we recorded i) elephant impact levels on each tree, ii) whether the tree had wire-netting, and iii) the tree’s survival status. We then modelled tree survival status as a dependent variable against multiple environmental factors. We found that tree survival was lowest when mean annual rainfall was lowest due to the drought, particularly amongst L. schweinfurthii and S. nigrescens. Wire-netting significantly increased large tree survival in comparison to control trees over the 12-year period, however, this effect decreased after four years if the wire-netting had lost its structural integrity. We illustrate how various environmental factors, in combination with elephant impact, affect large tree survival in an African savanna with a high density of artificial water points. We also provide results on the longest known study on wire-netting as a mitigation method for elephant impact on large trees and provide evidence on how a period of drought may have accelerated large tree decline in a southern African savanna.

Black Belonging, White Belonging: Primitive Accumulation in South Africa's Private Nature Reserves

AbstractEvictions have been shown to be a mechanism of primitive accumulation in nature conservation. This paper adds an historical analysis to the discussion on primitive accumulation in conservation by exploring the seemingly innocuous mechanism of White belonging to land in South Africa's private nature reserves. Contemporary articulations of White belonging are replete with stories and images of White male “pioneers” from the colonial era who, upon arrival in “empty lands”, were able to create economies out of nothing. Such representations of history on private nature reserve websites and other promotional material invisibilise Black belonging and legitimise private conservation. By illuminating the inconsistencies in the empty lands narrative and the legacies of three championed conservation pioneers from the 19th century, this paper argues that White belonging is a mechanism of primitive accumulation, while Black belonging continues to be expressed in various ways in contemporary South Africa.

Incubation parameters, offspring growth, and behavioral adaptations to heat stress of Black Skimmers (Rynchops niger) in a Neotropical inland colony (Aves, Charadriiformes, Laridae)

This study focuses on incubation parameters, egg morphometrics, and body mass development, hatching, and behavioral adaptations to heat stress within a colony of freshwater-breeding Black Skimmers (Rynchops niger) located in the private nature reserve of Serviço Social do Comércio (SESC) in the northern Pantanal, Mato Grosso, Brazil. Temperatures of nest, eggs, and surface substratum, as well as the development of embryos, were surveyed using thermal imaging, a method allowing digital recording from a distance and in a fraction of the time of traditional measuring techniques. The mean egg dimensions (n = 71) were 4.48 (± 0.13) × 3.27 (± 0.07) cm; the mean mass at hatching was 24.3 (± 1.9) g, with a significant decrease over incubation time. The mean surface temperature of eggs varied from 30.9℃ to 39.7℃, while the sand surface temperature was 20℃ at 06:00 h, rising to 47.7℃ at 11:00 h. There was a significant increase (7%) in egg surface temperature throughout incubation. Incubation-bout durations (n = 2108) were correlated with the microclimatic conditions of the substratum, becoming shorter with increasing sand-surface temperature around midday. Egg hatching lasted one day, and siblings hatched no more than 24 h apart. The mean body mass on Day 1 after hatching was 16.8 (± 1.6) g (n = 6). Three days after hatching, chicks moved to new sand depressions provided by parents near the original nest, where they remained motionless or tried to hide under riparian vegetation. The single chick that fledged had a growth rate of K = 0.117 and a t₁₀₋₉₀ value of 37.3 days. On Day 7, dorsal pintail feathers and primaries appeared, which were open on Day 15. After 14 days, the chick was able to regulate its body temperature, and no more feeding by parental birds during the daytime was observed. On Day 21, the immature plumage was fully developed. Fledging was completed on Day 27. Our study demonstrates that thermal imaging is a useful method of surveying egg and embryo development in the Black Skimmer, reducing nest disturbance and observation efforts.

Plant, bird, and mammal diversity of the Tomogrande field station, Vichada, Colombia

The Altillanura is a unique ecosystem within the Colombian Llanos, characterized by well-drained savannas and extensive riparian forests. The Altillanura harbors a rich assemblage of species, largely understudied and currently under threat by large-scale and unplanned agribusiness. Moreover, the number of public protected areas in the Colombian Llanos, particularly in the Altillanura, is insufficient to conserve the threatened habitats and species. Therefore, conservation efforts by private reserves are crucial for the protection of the region’s biodiversity. Here we present the first species list of the Tomogrande, a private nature reserve and scientific research field station in the municipality of Santa Rosalía, Vichada, Colombia. After ten years of ongoing research, we have recorded 299 species of plants, 189 species of birds, and 47 species of mammals. Compared to other private nature reserves in Vichada and the Tuparro National Park, the largest protected area in the region, Tomogrande makes a substantial contribution to the conservation of all three taxonomic groups. We advocate that better landscape planning and sustainable practices should become mandatory in the Altillanura to protect its biodiversity and the livelihoods of all stakeholders that inhabit this region.

Challenges and opportunities for sustainable solid waste management in private nature reserves: The case of Sabi Sand Wildtuin, South Africa

The mismanagement of waste in protected areas may lead to significant and irreversible environmental, economic and social impacts, such as land degradation, resource depletion, surface and groundwater pollution, loss of biodiversity and impacts on the aesthetic value of these areas. This paper aims to identify the challenges and opportunities for sustainable solid waste management in privately protected areas, given the limited research conducted on this topic. A case study approach was followed, which focused on the Sabi Sand Wildtuin, a private nature reserve (PNR) in South Africa. Interviews were conducted with 30 participants, which included representatives from the management authority, commercial lodges, non-commercial properties and a waste service provider. Several challenges have been identified by interviewees. Behaviour was the most frequently mentioned challenge, where interviewees raised concerns about negative attitudes, unwillingness to implement waste management measures and a possible lack of support. Other frequently mentioned challenges included foreseen difficulties due to the size and location of the reserve and concerns around funding of waste management measures, especially given the financial implications of coronavirus disease 2019 (COVID-19) travel and tourism restrictions. The most frequently identified opportunities included creating jobs and improving livelihoods, providing assurance and transparency of what happens to waste ‘beyond the gate’ and improving awareness, knowledge and skills related to waste management. To optimise the opportunities towards sustainable solid waste management, PNRs should focus on aligning their strategic direction to achieve legal compliance and support community initiatives to establish waste-related infrastructure and services that cannot be implemented within the reserve.Conservation implications: The pursuit of waste-related opportunities within privately protected areas could enhance the implementation of sustainable solid waste management in PNRs, whilst also contributing to pollution prevention, community upliftment and other secondary benefits, which could ultimately result in increased conservation efforts.

Sustainable development through the tourism sector: to what extent can sustainable tourism contribute to social justice for the local communities? A case study of the Grootbos Private Nature Reserve in South Africa

ABSTRACT The United Nations Sustainable Development Goals promote global sustainable development. One significant part of the socially focused goals for sustainable development is social justice. Regarding this, the tourism sector has been heavily criticised for not adequately contributing to sustainable development, especially social justice, and is blamed for primarily focusing on profit maximisation and benefitting external stakeholders and businesses, but not the local community. Respectively, this research article explores to what extent sustainable tourism can contribute to social justice for local communities. “Socialising tourism” is a novel concept specifically focusing on social justice for local communities. Thus, this concept has been taken into account when exploring the role of sustainable tourism for social justice. In fulfilment of this aim, this study is based on qualitative research with interviewees from the tourism case study of Grootbos Private Nature Reserve. The qualitative research is used to explore how Grootbos, as a private business, contributes to sustainable development with forms of social justice for the local communities. Respectively, the personal understanding of the participants of social justice has been investigated. Grootbos’ impact on the local community has been looked at through the lens of socialising tourism. The research shows that sustainable tourism and socialising tourism can contribute to sustainable development in local communities and their perception of social justice. Nevertheless, there is a discrepancy between social justice according to the literature and the aspects mentioned by the participants, which have probably been elicited due to listening to the local community.

Identifying key risks to the performance of privately protected areas (PPAs) through theory of change (ToC)

Privately protected areas (PPAs) are internationally considered to be important policy implementation instruments to augment and strengthen protected area networks. However, there has been limited reflection on the performance of PPAs over time. This paper aims to identify key risks to the performance of PPAs as policy implementation instruments through the application of Theory of Change (ToC). Identifying and understanding these risks are important to allow for the evaluation and monitoring of PPA performance. The ToC method was applied to a specific PPA policy instrument namely, private nature reserves (PNRs) in the South African context. The research results produced 29 key assumptions translated into 29 key risks. These risk are critically discussed against existing South African and international literature. To test and refine the risks further it is recommended that they be applied to PPA case studies in different contexts.

Wildlife Tourism Motivation: A Case for Manyeleti Nature Reserve, Mpumalanga

This study explores key motivators of wildlife tourism to Manyeleti Game Reserve, a private nature reserve in Mpumalanga province, South Africa. The primary objective of the study was to establish what motivates tourists to visit privately owned game lodges in Mpumalanga, and Manyeleti game reserve in particular. The intention was to focus on both the supply and demand perspective of wildlife tourism. The Push and Pull theory was adopted to contextualise its applicability on Manyeleti Nature Reserve. This study is quantitative in nature. Structured questionnaires were used through a convenience sample of 400 visitors to Manyeleti Nature Reserve. Exploratory Factor Analysis (EFA) was adopted to identify the fundamental wildlife motivational constructs. Six pull factors were identified as motivators of wildlife tourists (escape, relaxation, social, enriching and learning experiences, novelty, and adventure) as well as four push factors that emerged from the study. Although nature – based parks serve as a key tourist attraction for nature enthusiasts, this study revealed that there is a need for park managers to promote outdoor activities (recreational) and ‘visitors’ learning experiences’ as these were rated highly by the visitors.

Enjoying extinction: philanthrocapitalism, &lt;i&gt;jouissance&lt;/i&gt;, and 'excessive environmentourism' in the South African rhino poaching crisis

From 2007 to 2015, rhino poaching grew rapidly in and around Kruger National Park, South Africa. And though poaching numbers have declined since then, the 'poaching crisis' and its consequences continue to influence rhetoric and practice in the area, including continuing public outcries that the rhino is close to extinction. This discourse of extinction is also prevalent among the luxurious tourist lodges on private nature reserves of the Greater Kruger Area that attract wealthy tourists. In response, some lodges started initiatives in which tourists can join the fight against rhino poaching. These tourist activities share important similarities with 'philanthrocapitalism',in which wealthy philanthropists address social and environmental challenges drawing on the same business principles that made them successful. Based on research on the tourism industry, I explore the political ecology of such high-end, 'environmentourist' activities. I argue that philanthropic environmental tourist activities are based on a reductionist articulation of the rhino poaching crisis. They de-politicize it from its socio-economic and historical context and are 'excessive', in that they produce and legitimize exorbitant forms of privatized, luxurious tourism and consumerism as a solution for social and environmental crises. Moreover,such 'excessive environmentourism' allows wealthy tourists to enjoy 'doing good'in a very specific way, best captured by the term 'jouissance.' Jouissance is a particular type of ambivalent enjoyment that includes fascination with dark and horrific elements (i.e. poached rhinos and the idea that these animals are at the brink of extinction). I conclude that jouissance functions as a core motivation for wealthy tourists to engage in touristic experiences precisely because it enables them to believe they can overcome the dark sides of their own excesses ironically by 'doing good', grounded in excessive consumption.

Detecting wildlife poaching: a rigorous method for comparing patrol strategies using an experimental design

AbstractMany studies of wildlife poaching acknowledge the challenges of detecting poaching activities, but few address the issue. Data on poaching may be an inaccurate reflection of the true spatial distribution of events because of low detection rates. The deployment of conservation and law enforcement resources based on biased data could be ineffective or lead to unintended outcomes. Here, we present a rigorous method for estimating the probabilities of detecting poaching and for evaluating different patrol strategies. We illustrate the method with a case study in which imitation snares were set in a private nature reserve in South Africa. By using an experimental design with a known spatial distribution of imitation snares, we estimated the detection probability of the current patrol strategy used in the reserve and compared it to three alternative patrol strategies: spatially focused patrols, patrols with independent observers, and systematic search patterns. Although detection probabilities were generally low, the highest proportion of imitation snares was detected with systematic search strategies. Our study provides baseline data on the probability of detecting snares used for poaching, and presents a method that can be modified for use in other regions and for other types of wildlife poaching.

Conservation labour geographies: Subsuming regional labour into private conservation spaces in South Africa

Critical scholars have started analysing conservation as a ‘mode of production’, which entails conservation’s inclination to transform the value of nature into capital. This mode of production is underpinned by labour relations that have thus far escaped systematic analysis. To fill this gap, I use Smiths’ reading of the capitalist production of space to develop the concept of conservation labour geographies which untangles the spatial outcomes of the dialectical relation between the production of conservation space and labour. The concept is concretized through an analysis of the historical development of the private wildlife economy in the Lowveld area of South Africa. Through this case study I argue that private nature reserves subsume communal and state properties -beyond its fence- into exploitative symbiotic conservation labour geographies. I do this by firstly demonstrating that conservation labour geographies are an outcome of the historical production of conservation space because the development of the private wildlife economy in the Lowveld reinforced geographical differentiation by reproducing a spatialized and racialised division of labour. Secondly, I show that these labour geographies are characterised by the unpaid reproductive work of spouses and in-laws, traumatised rangers, and a racially segregated landscapes within the reserve and between the reserves and the former Bantustans. Finally, I conclude by proposing ‘conservation labour geographies’ as an analytical tool to unpack the interrelations between labour and the production of conservation spaces.

ASSESSMENT OF POPULATION CHARACTERISTICS AND HABITAT USE OF Podocnemis vogli (MÜLLER 1935) DURING A REPRODUCTIVE SEASON AT THE BOJONAWI PRIVATE NATURE RESERVE (VICHADA DEPARTMENT, COLOMBIA)

We conducted a short study in the Bojonawi Private Nature Reserve (Vichada department, Colombia) in three types of aquatic macrohabitats to characterize habitat use, population structure and reproductive phenology of Podocnemis vogli during one reproductive season. We also reevaluated the degree of sexual dimorphism in this species. To maximize capture rates, we used three methods: funnel traps, trammel nets, and manual capture. Only the funnel traps could be used in a standardized manner in all three macrohabitats. We captured 149 individuals in all age/size classes and obtained 11 recaptures. Since we were able to standardize sampling effort with the funnel traps in all macrohabitats, we compared habitat use and class structure among habitats during this reproductive season. There were no significant differences among the three macrohabitats in terms of relative abundances or size class distributions, but sex ratios differed, with an excess of males in the river and females in the lagoon. As with other congeners, P. vogli is a sexually dimorphic species where females attain larger sizes. In this study we documented that pre-cloacal tail length and nail length on the anterior third toe are the most useful secondary sexual characteristics for sexing subadult and adult individuals. Some females larger than 22 cm straight-line carapace length had calcified eggs in their oviducts. This species is abundant within the reserve and appears to be a habitat generalist, including the use of large rivers. More extensive and intensive monitoring is needed to document specific class survivorship rates, detectabilities and population dynamics.

Enabling conditions for the implementation and conservation outcomes of a private nature reserve

Abstract Expanding conservation efforts to private land is paramount to halt biodiversity loss and achieve global conservation targets. Individual landowners can play disproportionately important roles by establishing private parks and managing them with biodiversity‐focused objectives. However, several constraints hinder the expansion of such initiatives, and little is known about their extent, characteristics and keys for success. Here, we provide insights on the conditions that favoured the establishment and conservation outcomes of a private reserve in central Spain whose management has been fully conservation‐oriented for the past two decades. We report on the actions implemented to accomplish four key targets that aimed at protecting and enhancing wildlife populations, and on the landholder's motivations to devote his personal resources to pursue this goal. After acquiring the land, the landowner has made efforts to restore native wildlife populations after decades of poaching and intensive cattle raising. Key actions included re‐establishing degraded vegetation and fostering keystone rabbit populations to sustain carnivore populations. Water bodies are maintained to provide drinking points and foster aquatic animal populations; nest boxes target birds and bats. Many actions resulted from advice from multiple stakeholders, including public administration officers, academics, local residents and NGOs. The estate's formal conservation status has made it a partner in major conservation projects, including repeated releases of captively bred Iberian lynx. The landowner's determination for long‐term conservation was formalised through a legal protected‐area status. The condition that drove the creation of the reserve was the landowner's intrinsic motivation, which resulted from conservation ethic, personal identity and the desire to share and educate about the multiple values of nature. Additionally, several external conditions, such as accessibility and appropriate reserve size (biophysical conditions), the lack of need for economic activities (economic), a positive and pro‐active relationship with multiple stakeholders (social‐cultural), the protected‐area status and the capacity to make decisions independently (governance‐related), have helped sustain the project. The landholder suggests that public policy should reduce the bureaucratic burden to intrinsically motivated landowners and provide them technical advice, trust and financial incentives to expand conservation on private land.

Sustainable Development Goals localisation in the tourism sector: lessons from Grootbos Private Nature Reserve, South Africa

There is increasing concern over the sustainability of the tourism industry, which is blamed for contributing to several environmental challenges, including carbon emissions that lead to global warming and ultimately climate change. The industry is further blamed for causing ocean plastic pollution and associated negative impacts on the marine environment including fish deaths. Consequently, the United Nations World Tourism Organisation and other key role players have been calling for the tourism industry to embrace and localise the Sustainable Development Goals (SDGs) so as to address some of the concerns and in the process ensure buisness sustainability. However, since the Declaration of 2017 as the Year of Sustainable Tourism, very few studies have reviewed the role of tourism in the localisation of SDGs. Using primary, archival and secondary data, the paper presents an example of how a private nature reserve in the Cape Floral Kingdom (a World Heritage Site) has localised SDGs. The study shows that the Grootbos Foundation, Grootbos Private Nature Reserve has localised 16 SDGs through various initiatives targeting several aspects of business operations, including commerce, conservation, community, and culture. In addition, the study also highlights some critical challenges that are being faced by tourism companies in the localisation of SDGs which calls for greater scientific engagement and research so as to find innovative solutions. The study recommends the replication of the model by similar tourism businesses located near and in protected areas, to ensure tourism sustainability.