National Parks In South Africa Research Articles

Effect of the habitat and tusks on trunk grasping techniques in African savannah elephants.

Among tetrapods, grasping is an essential function involved in many vital behaviours. The selective pressures that led to this function were widely investigated in species with prehensile hands and feet. Previous studies namely highlighted a strong effect of item properties but also of the species habitat on manual grasping behaviour. African savannah elephants (Loxodonta africana) are known to display various prehensile abilities and use their trunk in a large diversity of habitats. Composed of muscles and without a rigid structure, the trunk is a muscular hydrostat with great freedom of movement. This multitasking organ is particularly recruited for grasping food items while foraging. Yet, the diet of African savannah elephants varies widely between groups living in different habitats. Moreover, they have tusks alongside the trunk which can assist in grasping behaviours, and their tusk morphologies are known to vary considerably between groups. Therefore, in this study, we investigate the food grasping techniques used by the trunk of two elephant groups that live in different habitats: an arid study site in Etosha National Park in Namibia, and an area with consistent water presence in Kruger National Park in South Africa. We characterised the tusks profiles and compared the grasping techniques and their frequencies of use for different foods. Our results show differences in food-grasping techniques between the two groups. These differences are related to the food item property and tusk profile discrepancies highlighted between the two groups. We suggest that habitat heterogeneity, particularly aridity gaps, may induce these differences. This may reveal an optimisation of grasping types depending on habitat, food size and accessibility, as well as tusk profiles.

EXAMINING CURRENT AND FUTURE CHALLENGES OF SEA LEVEL RISE ON COASTAL NATIONAL PARKS

Over the past decade, the increase in extreme weather events requires each sector to reflect on vulnerabilities to develop strategies for ramping up climate action. Owing to the shortage of climate data, significant knowledge gaps exist in some sectors of society and the economy, particularly in developing countries such as Africa. This has caused challenges for adaptation and resilience building as governments and other stakeholders cannot leverage knowledge for policy and practice and to seek funding for climate change action. This study responds to this knowledge by examining sea level challenges and their implications on coastal national parks in South Africa. The key question for this study is the most at-risk areas regarding sea level in coastal national parks and the implications of sea level on coastal national parks. The study utilises primary, secondary and archival data to arrive at conclusions. The study also uses climate change modelling data from SSP2-4.5 and SSP3-7.0. The study found that the most vulnerable coastal park in South Africa is the Garden Route National Park, which has the highest sea level rise, which will result in the Knysna section followed by the Cape Point section of Table Mountain, which will see the areas witnessing a 1m rise in sea level around 2100. Sea level rise is a threat to infrastructure, heritage, beaches, tourism employees and tourist safety, to mention but a few. The study recommends scaling up climate change action to assist the parks in adapting and building climate change resilience.

Futures consciousness and governance transitions for climate adaptation in South African protected areas

ABSTRACT In the context of climate change, protected areas play an important role in implementing the Sustainable Development Goals and addressing resource nexus challenges. However, setting protected areas for long-term conservation is often criticised for using narratives based on political, economic, and scientific assumptions to justify which elements of nature should be conserved and what actions should be implemented, creating a sense that conservation outcomes are desirable and universally accepted. Such narratives exclude other voices, values, and practices, limiting alternative options for the future. Adapting protected areas to climate change requires innovative approaches to address societal challenges and critically examining conservation strategies to make informed decisions under scenarios of change. This article presents the case of the Garden Route National Park in South Africa and the approach used to co-create inclusive visions of the future with local stakeholders. I draw on theoretical insights and empirical data collected through interviews with the park staff to describe the use of futures consciousness as an approach to understanding how people perceive change, prepare for, and embrace the future. I explore how people’s perceptions of change mobilize action to address complex problems and create alternative imaginaries beyond spatial and temporal boundaries. Futures consciousness can contribute to understanding processes that enable or constrain transformation and identifying options for mobilising change towards desired future goals. The findings can help managers examine individual and collective assumptions about adaptation, inform future-oriented practices and advance opportunities for transformational change to build resilient, just futures for nature and people.

Two's company, three species is a crowd? A webcam-based study of the behavioural effects of mixed-species groupings in the wild and in the zoo.

Mixed species exhibits in zoos are used to create larger, more stimulating environments to support naturalistic interactions between species. In the wild, mixed species groups are observed as having lower rates of vigilance, presumably due to reduced predation risk through 'detection' and 'dilution' effects. This effect appears to be highly variable depending on factors such as food availability or degree of threat. This study aimed to collect data on mixed-species associations and consequent vigilance rates in the wild, collecting equivalent data from a large mixed-species zoo enclosure to compare the findings between free-ranging and captive populations. The study additionally investigated whether large mixed-species enclosures support natural associations and behaviours, by comparing the behaviour of captive animals with wild counterparts. The study used livestream video feeds from 10 national parks in South Africa and Kenya to observe free-ranging species, and a camera at the San Diego Zoo Safari Park's mixed species African exhibit. Scan and continuous sampling protocols were used simultaneously to record behavioural states as well as the rate of scanning (vigilance) events. GLMMs were run to test whether vigilance of a focal species varied according to the number of animals present, the density of animals in the group, and the diversity of species. In the wild, vigilance decreased with increasing number of animals in the surroundings but in captivity the group size had no impact. The results suggest that in the wild, these species benefit from increased perceived safety in larger groups, regardless of the species making up that group. No effect was noted in the zoo because of a reduced need for animals to show heightened vigilance to the same degree as in the wild. Similarities were observed in associations between species/mixed species group compositions, and in behaviour budgets. These findings provide a preliminary evaluation of how the impact of mixed species groupings may translate from the wild to the zoo, based on the associations and behaviour across a variety of African ungulates.

Aquatic invertebrate community structure and functions within a Ramsar wetland of a premier conservation area in South Africa

The Ramsar-accredited Makuleke Wetlands are located in the Makuleke Concession in the northern Pafuri region of the Kruger National Park in South Africa. The Pafuri area holds up to 75% of Kruger National Park’s total biodiversity, emphasising the Makuleke Wetlands’ international environmental importance. The Makuleke Wetlands are composed of the floodplains of the Luvuvhu and Limpopo rivers, with an estimated 31 wetlands present within the floodplains. Ten floodplain wetlands were assessed in the Makuleke region, eight of which are fed by the Limpopo River and the other two from the Luvuvhu River. Water and aquatic invertebrate communities were sampled at each site during surveys in April and September 2015 to provide baseline information on the aquatic biota of this Ramsar site. Multivariate data analytical techniques were used to assess the role of season and water quality in structuring the aquatic invertebrate communities of the wetlands. Macroinvertebrate functional feeding group ratios were also calculated as an indication of wetland ecosystem structure and function. Aquatic invertebrate diversity was some of the highest recorded for wetlands in South Africa, indicating the important role these habitats play in supporting high biodiversity in the Makuleke region. Worryingly, one of the most prolific invasive molluscan species, Tarebia granifera, was present in the wetlands and is a significant threat to native biodiversity of this conservation area. Community characteristics and ecosystem structure and function of the aquatic invertebrates further indicated that the Makuleke Wetland habitats were of good quality and provided a sufficient stable substrate for all aquatic invertebrates. Functionally, the system was characterised as reliant on heterotrophic inputs as autotrophic sources are limited. This is the first study of its kind for the region and lays the groundwork for future ecosystem studies on these important wetlands in the second-largest floodplain of South Africa.

The Rhino's Testimony

The Rhino's Testimony Bridget Pitt (bio) Click for larger view View full resolution Bridget Pitt, author of the novel Eye Brother Horn, reflects on how South Africa's colonial history, and the entanglement of nature conservation with social inequality and violence, means that many efforts to connect with or save nature are embedded in a system of wealth production that is driving its destruction—particularly that of the rhino. [End Page 29] Click for larger view View full resolution Sunrise over the savanna and grass fields in central Kruger National Park in South Africa Every day, at least one rhino is killed for its horn in South Africa. Rhinos in the Kruger National Park have declined by 60 percent in the last decade (savetherhino.org). Often, the horn and half the face are hacked off while the rhino is still alive. It is hard to countenance such cruelty and natural to blame the poachers who shoot them, plus all those linked to the illicit rhino horn trade that feeds the market in East Asia. But a rhino slain for its horn tells a story of violence, greed, and dispossession that ripples far beyond the poacher's bullet and goes back centuries: when I set out to write a novel about rhino-poaching, it became a novel about colonialism. When the British colonizers first arrived in modern-day KwaZulu-Natal early in the nineteenth century, they found what they considered "virgin territory": sprawling coastal and inland forests and lush grasslands teeming with antelope. Vast elephant herds migrated up and down the coast, creating pathways that today are three-lane highways roaring with traffic. Lions, leopards, and rhinos were frequently seen around Durban. The land had in fact been occupied by humans for millennia, first by the San and, later, Nguni tribes moving down from the north. The San were nomadic hunter-gatherers with a light footprint, but the Nguni people, who had been living there for at least four hundred years, cultivated crops and herded cattle, impacting the land in several ways. They burned pastures to improve grazing for their livestock, cleared land for crops, and burned wood for smelting iron and cooking. They hunted animals and harvested wild plants for food, clothing, shelter, and medicine. But their impact was minimal compared to what happened in the years that followed. [End Page 30] By the end of the nineteenth century, the landscape was fundamentally transformed. No elephant, lion, or rhino could be found south of the Pongola River, and the buffalo and antelope herds were decimated. The human landscape was also irrevocably transformed: the power of the Zulu king broken, the chiefs brought into subjugation under British authority. From being self-sufficient farmers, the local people were now forced by the hut tax and loss of land to labor for minimal wages on British-owned farms or in British-owned mines. In 1870 the British in Natal numbered fifteen hundred compared to over fifty thousand Indigenous people. How had a relatively small number of people had such an impact? The simple answer is guns. Guns were used without restraint against the wildlife, and while initial relations with the Indigenous people were based more on cooperation than force, as the colony became more established, guns were used to help subjugate the Indigenous population through force or inducement. When the neighboring sovereign Zulu nation became an obstacle to expansion, the British invaded their kingdom and overcame their armies with its superior firepower. Zululand was carved up for white settlers, and the royal house brought under British rule. But guns were just the tools. The real driver of transformation was the violence that flowed from a hierarchical concept of the world. Human exceptionalism governed colonial attitudes to nature but also to Black people, as they were considered less than human in order to justify slavery and—after abolition—enforced labor, impoverishment, and theft of land. The San Bushmen were so brutally dehumanized that until 1936 it was permissible to hunt them—many people still living today were alive when the last permit was issued in Namibia. As the colony expanded, racist attitudes equating blackness with beastliness became entrenched, disrupting the relationship to wildlife...

Soil erosion in the savanna biome national parks of South Africa

Soil erosion has become a common feature in certain national parks across the global biomes, and national parks in the Savanna biome of South Africa have not been spared. Given their prominence in hosting large land mammals that contribute significantly to the tourism sector, the vulnerability of the parks to soil erosion merits attention. This study examines soil erosion status in the Savanna biome national parks of South Africa to recommend management practices aligned with the degree of erosion susceptibility. The results show that erosion rates across the national parks range between 0 and 25 t/ha/yr, and only a few have soil loss rates above 25 t/ha/yr. The Kgalagadi National Park has the lowest erosion rates, with a water erosion severity index (ESI) of 0. The Kruger and Mokala National Parks have low erosion rates, with an ESI of 0.017 and 0.01, respectively. The Mapungubwe National Park has moderate rates of soil loss, with an ESI of 0.023, while Marakele has the highest rates of soil erosion, with an ESI of 0.39. Soil erosion by water action is generally a minor environmental threat for the Kgalagadi, Kruger and Mokala National Parks. However, for Mapungubwe, soil erosion has a moderate threat, while in Marakele, it imposes a very high threat level. The different rates of soil erosion are attributed to the heterogeneous biophysical conditions of the Savanna biome, as well as different historical land use patterns across the parks. Climate change could be exacerbating the susceptibility of national parks to soil erosion. Park-specific management strategies that consider historical land use patterns and biophysical conditions within a climate change context are recommended.

In-situ multi-mode extraction (iMME) sampler for a wide-scope analysis of chemical and biological targets in water in urbanized and remote (off-the-grid) locations

Chemical pollution (including chemicals of emerging concern – CECs) continues to gain increasing attention as a global threat to human health and the environment, with numerous reports on the adverse and sometimes devastating effects upon ecosystems the presence of these chemicals can have. Whilst many studies have investigated presence of CECs in aquatic environments, these studies have been often focused on higher income countries, leaving significant knowledge gaps for many low-middle income countries. This study proposes a new integrated powerless, in-situ multi-mode extraction (iMME) sampler for the analysis of chemicals (105 CECs) and biological (5 genes) markers in water in contrasting settings: an urbanized Avon River in the UK and remote Olifants River in Kruger National Park in South Africa. The overarching goal was to develop a sampling device that maintains integrity of a diverse range of analytes via analyte immobilization using polymeric and glass fibre materials, without access to power supply or cold chain (continuous chilled storage) for sample transportation. Chemical analysis was achieved using ultra-performance liquid chromatography coupled with tandem mass spectrometry. Several mobile CECs showed low stability in river water, at room temperature and typical 24 h sampling/transport time. It is therefore recommended that, in the absence of cooling, environmental water samples are spiked with internal standards on site, immediately after collection and analyte immobilization option is considered, in order to allow fully quantitative analysis. iMME has proven effective in immobilization, concentration and increased stability of CECs at room temperature (and at least 7 days storage) allowing for sample collection at remote locations. The results from the River Avon and Olifants River sampling indicate that the pristine environment of Olifants catchment is largely unaffected by CECs common in the urbanized River Avon in the UK with a few exceptions: lifestyle chemicals (e.g., caffeine, nicotine and their metabolites), paracetamol and UV filters due to tourism and carbamazepine due to its persistent nature. iMME equipped with an additional gene extraction capability provides an exciting new opportunity of comprehensive biochemical profiling of aqueous samples with one powerless in-situ device. Further work is required to provide full integration of the device and comprehensive assessment of performance in both chemical and biological targets.

인간․비인간의 난민화와 레푸기아(Refúgĭa)

This paper focuses on the Kruger National Park in South Africa, the background of Nadine Gordimer’s novel “The Ultimate Safari”(1991), and how the park turned from a historical site of Apartheid to an ecological one.
 Human and non-human migration, once mainly caused by conflicts and civil wars, are increasingly the result of habitat destruction, environmental pollution, and climate change. Although the movement of flora and fauna is noticeable, the constant movement of humans has been neglected. As a result, immobility between continents was taken for granted by society, and the overall human and non-human mobility was interpreted as ominous and negative. Also, the establishment of borders and adherence to ethnocentrism and the nation-state stems from political and power relationships that incite migration with instability. Therefore, gender, race, ethnicity, and nationality work unevenly. However, humans and non-humans have a longer history of migration than imagined, and it is a natural cycle. It is rather a sign of hope to decide to move in a situation of deprivation when being ousted from one’s home. Many species die due to climate change, but finding shelter even after suffering a displacement demonstrates the capacity to move.
 Unlike enclaves, which alienate adjacent regions or are alienated from ones, “Refúgĭa,” refers to regions where elements of modern flora and fauna might have survived glacial periods with greatly reduced numbers and distributions.
 Even now, “Refúgĭa” continues to occur in many places, including Kruger National Park. In the background of losing domicile and increasing refugeeism worldwide, the move to Refúgĭa should not just mean places, but should lead to the act of creating controversial places across major connections between multiple “sharing” experiences.

Demographic responses of an insular elephant population to removal as a management intervention

AbstractDisturbances that change population structure may evoke transient dynamics that can be assessed within a demographic resilience framework. Conservation management interventions are conceptually disturbances that can be evaluated through such a framework to inform management actions and goals. The Main Camp in Addo Elephant National Park in South Africa presents a case study. Here management reduced the size of the elephant (Loxodonta africana) population by ~26%. We compared population growth, modelled trends, constructed life tables and parameterized population projection matrices from data collected before, during and after the interventions. The interventions reduced population size and density, but co‐occurring droughts may have reduced subsequent population growth and stage‐specific survival. Transient dynamics followed the interventions and droughts and were associated with an unstable stage structure. The effect of adult survival on modelled asymptotic growth (its elasticity) was greater than a change in fertility. However, lowered juvenile survival contributed most to changes in transient growth. Management plans for elephant populations should consider the length of transients induced by interventions and environmental disturbances such as droughts. Our approach can benefit the assessment of population responses of elephants to disturbances such as poaching and persistent droughts elsewhere in Africa.

Quantifying the environmental limits to fire spread in grassy ecosystems

Modeling fire spread as an infection process is intuitive: An ignition lights a patch of fuel, which infects its neighbor, and so on. Infection models produce nonlinear thresholds, whereby fire spreads only when fuel connectivity and infection probability are sufficiently high. These thresholds are fundamental both to managing fire and to theoretical models of fire spread, whereas applied fire models more often apply quasi-empirical approaches. Here, we resolve this tension by quantifying thresholds in fire spread locally, using field data from individual fires (n = 1,131) in grassy ecosystems across a precipitation gradient (496 to 1,442 mm mean annual precipitation) and evaluating how these scaled regionally (across 533 sites) and across time (1989 to 2012 and 2016 to 2018) using data from Kruger National Park in South Africa. An infection model captured observed patterns in individual fire spread better than competing models. The proportion of the landscape that burned was well described by measurements of grass biomass, fuel moisture, and vapor pressure deficit. Regionally, averaging across variability resulted in quasi-linear patterns. Altogether, results suggest that models aiming to capture fire responses to global change should incorporate nonlinear fire spread thresholds but that linear approximations may sufficiently capture medium-term trends under a stationary climate.

How lions move at night when they hunt?

Abstract Movement patterns of lions (Panthera leo) reveal how they hunt large herbivores in heterogeneous landscapes such as the Kruger National Park in South Africa. Large herbivores are distributed differently on the landscape and therefore have different vulnerabilities as prey for lions. For instance, blue wildebeest (Connochaetes taurinus) occupy small grazing lawns at night but are difficult for lions to capture because open areas lack cover for stalking. African buffalo (Syncerus caffer) aggregate in large herds but are less available because these herds only intermittently enter the home ranges of individual lion prides. Unlike large herds of wildebeest and buffalo, plains zebra (Equus quagga) move widely in small herds while browsing greater kudus (Tragelaphus strepsiceros) and giraffes (Giraffa camelopardalis giraffa) generally occur in lower densities. We used spatial data derived from GPS collars to investigate several hypotheses regarding the movements of three lion prides in response to their prey. We found that lions were most active and moved longer distances during nighttime than during daytime. Lions remained within their core home ranges on 87% of nights and wandered to the outlying areas of the home ranges every second night. Lions visited grazing lawns, that is, area of short grass, where wildebeest herds resided every second night, and moved toward the direction of buffalo herds within 2 km of vicinity. Lions spent more time near riverbanks that provided dense woody cover at night than expected but concentrated only weakly near sites with surface water where herbivores drank in the dry season. Our study contributes to understanding how lions vary their movements in response to the spatial and temporal heterogeneity in the relative availability and vulnerability of multiple prey species.

Detecting country of residence from social media data: a comparison of methods

Identifying users’ place of residence is an important step in many social media analysis workflows. Various techniques for detecting home locations from social media data have been proposed, but their reliability has rarely been validated using ground truth data. In this article, we compared commonly used spatial and Spatio-temporal methods to determine social media users’ country of residence. We applied diverse methods to a global data set of publicly shared geo-located Instagram posts from visitors to the Kruger National Park in South Africa. We evaluated the performance of each method using both individual-level expert assessment for a sample of users and aggregate-level official visitor statistics. Based on the individual-level assessment, a simple Spatio-temporal approach was the best-performed for detecting the country of residence. Results show why aggregate-level official statistics are not the best indicators for evaluating method performance. We also show how social media usage, such as the number of countries visited and posting activity over time, affect the performance of methods. In addition to a methodological contribution, this work contributes to the discussion about spatial and temporal biases in mobile big data.

Philanthropy, Local Employment, and Environmental Audits at Ngala Private Game Reserve, South Africa

Abstract Ngala Private Game Reserve is a safari lodge owned by the World Wide Fund for Nature – South Africa (WWF-SA) within the Kempiana Contractual National Park in South Africa. andBeyond has a 20-year lease to operate a safari lodge and tented camp, and traverse the reserve. The lodge generates benefits for local people through employment and by channelling donations through the Africa Foundation into community health, education and small business development initiatives. The lodge monitors its environmental impacts through bi-annual audits that are submitted to the Department of Environmental Affairs. Information Snyman, S. and Spenceley, A. (2019) Private Sector Tourism in Conservation Areas in Africa, CABI © CAB International 2022

Endangered African Wild Dogs: Ecological Disturbances, Habitat Fragmentations, and Ecosystem Collapse in Sub-Saharan Africa.

The African wild dog (Lycaon pictus) is among the species that have declined to the point where it is now listed as endangered by the International Union for the Conservation of Nature (IUCN, 2012). Formerly, the African wild dog population was estimated to span 39 African countries, but today, they have disappeared from much of their former habitats, now occupying just 7% of their former geographic range. They are presently found in only 14 countries primarily in the southern part of the continent, including South Africa, Tanzania, Kenya, Zimbabwe, Namibia, and Botswana. The largest populations are presently found in northern Botswana, the Selous Game Reserve in Tanzania, and in Kruger National Park in South Africa. In East Africa, the largest population is found in Tanzania and Kenya in the Serengeti-Maasai-Mara ecosystems and in the Selous Game Reserve. The current, global population is estimated to be between 3000-5000 which is comprised of less than 1400 mature individuals. Methodically, this study deeply underscored these data from critical library research i.e., archival sources, books and articles, and other published literatures across the globe which are pertinent to this research topic.

Community/Social Action Groupwork in Indigenous and Rural Communities Zimbabwe Summer 2019

In June 2018, I was fortunate enough to attend and present at the IASWG Symposium at Kruger National Park in South Africa. It was a truly amazing experience. However, in July of 2019 I was once again able to return to the African continent. This time to visit Zimbabwe. For the past four years, my friend and School Principal Chris Labbe, had been visiting and working with the IMVELO organization to raise funds for the following three schools: Ngamo Primary School, Mlevu Primary School and St Joseph’s Primary School.These three schools are located in the indigenous and rural rural villages of Hwanga National Park. During the course of the visits to these three Schools, my wife Peg McGovern and I were able to observe the incredible work that was being done between IMVELO and the local communities. The overarching theme of the IASWG 2018 symposium had been “Groupwork in Communities.” On my visit to Hwanga, I witnessed the impact of Groupwork in these indigenous and rural communities. On my return home, I reviewed the Groupwork literature, and it reinforced what I observed and encountered in Zimbabwe. The wonderful sense of community, sustainability, cooperation, integration of programs, social action and empowerment. It truly was an amazing experience and a trip of a lifetime.

Evaluating and reflecting on coproduction of protected area management plans

ABSTRACTProtected areas are complex social‐ecological systems, hence their management should be guided by engagement and co‐learning with diverse stakeholders. The challenge of effective stakeholder participation has generated a body of literature on the design and facilitation of coproduction processes. In this study, we used this literature to develop a principle‐based framework for assessing coproduction. We then applied this framework to evaluate how well “adaptive planning” (a sub‐process of adaptive management used for visioning and objective setting with stakeholders), as applied to the Garden Route National Park in South Africa, aligned with the ideals of coproduction. Our analysis revealed shortcomings in the adaptive planning process, which could be improved through broadening the agenda beyond the mandate and control of national parks, empowering collective agency among a wider stakeholder network, and embedding co‐learning with stakeholders as an ongoing journey. A significant finding was that adaptive management does not align well with the ideals of coproduction, which may be better supported by an adaptive co‐management approach. The latter is particularly necessary in complex national parks that are diverse in terms of both ecosystems and stakeholders, and where governance may be contested.

The spatial distribution of the woodland communities and their associated environmental drivers in the Golden Gate Highlands National Park, South Africa

The extreme variability in the topography, altitude and climatic conditions in the temperate Grassland Mountains of Southern Africa is associated with the complex mosaic of grassland communities with pockets of woodland patches. Understanding the relationships between plant communities and environmental parameters is essential in biodiversity conservation, especially for current and future climate change predictions. This article focused on the spatial distribution of woodland communities and their associated environmental drivers in the Golden Gate Highlands (GGHNP) National Park in South Africa. A generalized linear model (GLM) assuming a binomial distribution, was used to determine the optimal environmental variables influencing the spatial distribution of the woodland communities. The Coefficient of Variation (CV) was relatively higher for the topographic ruggedness index (68.78%), topographic roughness index (68.03), aspect (60.04%), coarse fragments (37.46%) and the topographic wetness index (31.33) whereas soil pH, bulk density, sandy and clay contents had relatively less variation (2.39%, 3.23%, 7.56% and 8.46% respectively). In determining the optimal number of environmental variables influencing the spatial distribution of woodland communities, roughness index, topographic wetness index, soil coarse fragments, soil organic carbon, soil cation exchange capacity and remote-sensing based vegetation condition index were significant (p 0.05) and positively correlated with the woodland communities. Soil nitrogen, clay content, soil pH, fire and elevation were also significant but negatively correlated with the woodland communities. The area under the curve (AUC) of the receiver operating characteristics (ROC) was 0.81. This was indicative of a Parsimonious Model with explanatory predictive power for determination of optimal environmental variables in vegetation ecology.Conservation implications: The isolated woodland communities are sources of floristic diversity and important biogeographical links between larger forest areas in the wider Drakensberg region. They provide suitable habitats for a larger number of forest species and harbour some of the endemic tree species of South Africa. They also provide watershed protection and other important ecosystem services. Understanding the drivers influencing the spatial distribution and persistence of these woodland communities is therefore key to conservation planning in the area.

Inter‐Group Social Behavior, Contact Patterns and Risk for Pathogen Transmission in Cape Buffalo Populations

ABSTRACTIn social species, the transmission and maintenance of infectious diseases depends on the contact patterns between individuals within groups and on the interactions between groups. In southern Africa, the Cape buffalo (Syncerus caffer caffer) is a vector for many pathogens that can infect sympatric livestock. Although intra‐group contact patterns of Cape buffalo have been relatively well described, how groups interact with each other and risks for pathogen transmission remain poorly understood. We identified and compared spatial behavior and contact patterns between neighboring groups of Cape buffalo under contrasting environments: within the seasonally flooded environment of the Okavango Delta in Botswana and the semi‐arid environment of northern Kruger National Park in South Africa. We used telemetry data collected between 2007 and 2015 from 10 distinct groups. We estimated seasonal overlap and proximity between home ranges of pairwise neighboring groups, and we quantified seasonal contact patterns between these groups. We defined contact patterns within variable spatiotemporal windows compatible with the transmission of diseases carried by the Cape buffalo: bovine tuberculosis, brucellosis, and Rift Valley fever (mosquito‐borne transmission). We examined the effects of habitat and distance to water on contact location. In both study populations, neighboring buffalo groups were highly spatially segregated in the dry and rainy seasons. Inter‐group contact patterns were characterized by very few direct and short‐term indirect (within 0–2 days) contacts, lasting on average 1 hour and 2 hours, respectively. Contact patterns were generally consistent across populations and seasons, suggesting species‐specific behavior. In the drier study site, the probability of indirect and vector‐borne contacts generally decreased during the dry season with increasing distance to water. In the seasonally flooded area, only the probability of vector‐borne contact decreased with increasing distance to water. Our results highlight the importance of dry season water availability in influencing the dynamics of indirectly transmitted Cape buffalo pathogens but only in areas with low water availability. The results from this study have important implications for future modeling of pathogen dynamics in a single host, and the ecology and management of Cape buffalo at the landscape level. © 2021 The Authors. The Journal of Wildlife Management published by Wiley Periodicals LLC on behalf of The Wildlife Society.

SEROLOGICAL EVIDENCE OF COXIELLA BURNETII INFECTION IN THE WHITE RHINOCEROS (CERATOTHERIUM SIMUM) IN SOUTH AFRICA.

Coxiellosis, or Query (Q) fever, a disease caused by the intracellular bacteria Coxiella burnetii, was recently described in a managed breeding herd of white rhinoceros (Ceratotherium simum) in the southeastern United States. Clinical disease often results in abortion and could represent a conservation challenge for this species. In addition to the reproductive and herd management consequences, coxiellosis is also a zoonotic disease. Infection or clinical disease in any free-ranging rhinoceros species in a national park setting has not been previously described. In this study, evidence of prior infection was measured by immunofluorescent antibody titers in 89 serum samples collected from white rhinoceros within private reserves and a national park in South Africa. Total seropositivity was 48/89 (53.9% [95% CI, 43.6-63.9%]). Animals on private reserves had a seropositivity of 21/51 (41.1% [95% CI, 27.1-55.2%]), and national park rhinoceros had a higher rate of seropositivity at 71.0% [95% CI, 55.9-86.2%] (27/38; P= 0.004). Adults had a higher seropositivity compared with subadults (P= 0.03). There was no difference in seropositivity between sexes (P > 0.05). Results demonstrate that South African white rhinoceros populations are exposed to Coxiella, which could result in underrecognized reproductive consequences. Further studies should investigate potential implications for public health and conservation management of this species.