Into the future: Donkergat Military Training Area and the Langebaan Ramsar site

Marx, Jan T.; Liebenberg, Ian

doi:10.4102/td.v15i1.566

Cited by 3 publications

(4 citation statements)

References 1 publication

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“…The two estuaries in which S. compressa occurs do, however, have unique sets of threats, so a separate evaluation of the vulnerability of the two S. compressa populations is necessary. Langebaan is located within a national park, much of which excludes public entry or prohibits bait collection, and the southern section has RAMSAR status, being a wetland of international importance, particularly for waterfowl (Marx & Liebenberg, 2019), but it faces anthropogenic threats related to temperature increases associated with climate change (Lawrence & Bolton, 2022), habitat destruction from human foot traffic from expanding tourism, microalgal fouling of the limpet’s host plant Z. capensis (Waspe, 2015), pollution and iron‐ore deposition from the nearby ore jetty at Saldanha (Beckley, 1981), alien species (Robinson & Griffiths, 2002; Sadchatheeswaran, Branch & Robinson, 2015) and dredging associated with harbour construction that has increased siltation in the lagoon (Kruger et al, 2005). Siphonaria compressa is restricted to the surfaces of the eelgrass and, given the weak wave action and gentle tidal movement in the shallow edges of the lagoon where the eelgrass beds occur, the conditions are conducive to both trampling and sedimentation on the blades.…”

Section: Discussionmentioning

confidence: 99%

A critically endangered estuarine limpet’s only two populations are genomically and morphologically distinct

de Coito,

Emami‐Khoyi,

Hedderson

et al. 2023

Aquatic Conservation

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Seagrass habitats are declining worldwide, placing several seagrass‐associated animals at risk of extinction. The Critically Endangered limpet Siphonaria compressa is one of the rarest molluscs in Africa, and has been reported from only two disjunctive lagoons in South Africa. Being a highly specialized grazer that lives exclusively on the narrow blades of Cape eelgrass, Zostera capensis, which is itself listed as Endangered in the South African Red List and has decreased in abundance, conservation initiatives are urgently needed to ensure the long‐term survival of S. compressa. Molecular data (sequence data from the mitochondrial genome and single nucleotide polymorphism data of the nuclear genome) and morphological data were analysed to determine whether the two populations are conspecific, with implications for whether translocation between localities could be a viable management strategy to restore either population in the event of a collapse, or to maintain the genetic diversity of each population. Strong evidence emerged for the distinctness of the two populations, including a lack of shared mtDNA haplotypes that indicate an absence of contemporary gene flow, a divergence time that dates to the late Pleistocene, and a number of morphological characters that distinguish their shells. These findings indicate that the two populations are distinct cryptic subspecies. As the two populations occur in different temperature‐defined marine biogeographical regions, they are probably adapted to different thermal environments. Translocations are not recommended, as this management strategy has considerable potential to result in outbreeding depression and exacerbate the extinction risk. Instead, each population should be managed separately, and several alternative conservation measures are discussed, including the protection and restoration of seagrass beds.

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Section: Discussionmentioning

confidence: 99%

A critically endangered estuarine limpet’s only two populations are genomically and morphologically distinct

de Coito,

Emami‐Khoyi,

Hedderson

et al. 2023

Aquatic Conservation

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“…This is what happens in a by now recurrent form, in the occasion of the dismissal of the state property, both in the urban areas and in extra-urban ones [8]. This brief summary also includes military proving grounds (MPGs), which have the following European locations as shown in Figure 2, with a total of 284 MPGs, mainly concentrated in the United Kingdom (55), the Netherlands (27), France and Germany (26 in each country), Switzerland (22), Spain (21), Italy and Poland (13 in each country). The multitude of activities that are carried out there.…”

Section: Introductionmentioning

confidence: 94%

“…The planning and management of the coastal environment requires careful assessment of both coastal evolutionary trends, such as marine and hydrodynamic weather phenomena, and the phenomena of increasing anthropic pressure connected to tourist use. This in order to integrate the planning and management of the coastal environment between risk mitigation and conscious use [27,28]. In this sense, the authors have identified the main instruments for the planning and coastal management of Villaputzu: The coastal use plan (LCP) and the SCI management plan (SCIMP) [29].…”

Section: Planning and Management Tools For Coastal Usesmentioning

confidence: 99%

Military Training Areas as Semicommons: The Territorial Valorization of Quirra (Sardinia) from Easements to Ecosystem Services

et al. 2020

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The paper addresses the issue of the concurrent use of coastal areas for military training and civil activities, namely tourism. In the paper, starting from the consideration of publicly owned assets as ‘semi-commons’, we propose a method based on the comparison of planning instruments related to the different uses, and try to model them in a grid, where different weights and degrees of evaluation can be considered, in order to promote, rather than blocking, possible activities, compatible with concurrent use. The military areas in Sardinia (region and island, Italy) are around 234 km2, which constitutes 60% of the national surface affected by military easements. This situation is due to its geographic position, considered centrality in the Mediterranean for strategic reasons. This contribution evaluates the performance of the Local Coastline Plan (LCP) and the Site management plan of Community Interest (SCI) in conditions of military constraint. The case study is the municipality of Villaputzu South Sardinia, Italy), where an important coastal military easement and the use of the coast for recreational tourism purposes coexist together through specific planning, a consequence of institutional agreements between the Municipal Administration of Villaputzu and the Ministry of Defense. The idea is considering the concurrent possible land uses guaranteed by the different planning instruments, instead of focusing, as it is generally the rule, on the sum of constraints provided by the laws. The local coastline plan has been identified as the ideal planning tool, which addresses the co-existence of apparently opposite land uses and interests, as those expressed by the local municipal planning and those expressed by the military. An evaluation of the congruence of the specific objectives of the LCP and SCI shows how their combined action favors the environmental enhancement of Sardinia, contributing to the formation of ecosystem services, even in particular conditions arising from military easements. These are sites that evolve from ‘anticommons’ to ‘semicommons’. In fact, the military release process in Sardinia, together with the promiscuous military and civil use, activates unique governance policies of their kind that find a significant field of application in Sardinia to guarantee sustainable renewal of economic development of the ‘semi-commons’ awaiting to become ‘commons’.

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“…The planning and management of the coastal environment requires a careful assessment of both coastal evolutionary trends, such as marine and hydrodynamic weather phenomena and the phenomena of increasing anthropic pressure connected to tourist use. This in order to integrate the planning and management of the coastal environment between risk mitigation and conscious use [27][28]. In this sense the authors have identified as main instruments for the planning and coastal management of Villaputzu: the Coastal Use Plan (LCP) and the SCI Management Plan (SCIMP) [29].…”

Section: Planning and Management Tools For Coastal Usesmentioning

confidence: 99%

Military Training Areas as Semi Commons: The Territorial Valorization of Quirra (Sardinia) from Easements to Ecosystem Services

Balletto¹,

Milesi²,

Fenu³

et al. 2019

Preprint

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The military areas in Sardinia are around 234 km 2 , which constitutes 59.97% of the national surface affected by military easements. This situation is due to its geographic centrality in the Mediterranean. This contribution evaluates the performance of the Local Coastline Plan (LCP) and the Site Management Plan of Community Interest (SCI) in conditions of military constraint. The case study is the Municipality of Villaputzu where an important coastal military easement and the use of the coast for recreational tourism purposes coexist together through specific planning, a consequence of institutional agreements between the Municipal Administration of Villaputzu and the Ministry of Defense. The evaluation of the congruence of the specific objectives of the LCP and the SCI shows how their combined action favors the environmental enhancement of Sardinia, contributing to the formation of ecosystem services, even in particular conditions arising from military easements. These are sites that pass from the status of 'anti-commons' to 'semi-commons'. In fact, the military release process in Sardinia, together with the promiscuous military and civil use, activates unique governance policies of their kind that find a significant field of application in Sardinia to guarantee a sustainable renewal of economic development of the 'semi-commons' awaiting to become 'commons' 1 .Coastal Use Plan (LCP) and Strategic Environmental Assessment (SEA): scientific coordinator Ginevra Balletto. Participated in: MUPV, LCP and SEA Alessandra Milesi and LCP Nicolò Fenu . 2 In Italy the state property 'Demanio' (Civil Code art. 822 et seq.) consists of the necessary state property, which includes the maritime state property (sea shore, beach, ports, roads, lagoons, river mouths that flow into the sea, water basins sauce or brackish, canals usable for maritime public use and appliances belonging to the maritime domain), the water state property (rivers, lakes and streams, excluding the sources that flow into the sea, public waters defined by the legislation on the subject, all groundwater and surface waters also collected in reservoirs and cisterns, excluding rainfalls not conveyed, in a watercourse or not collected in reservoirs or cisterns) andPreprints (www.preprints.org) | NOT PEER-REVIEWED | Posted:

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Into the future: Donkergat Military Training Area and the Langebaan Ramsar site

Cited by 3 publications

References 1 publication

A critically endangered estuarine limpet’s only two populations are genomically and morphologically distinct

A critically endangered estuarine limpet’s only two populations are genomically and morphologically distinct

Military Training Areas as Semicommons: The Territorial Valorization of Quirra (Sardinia) from Easements to Ecosystem Services

Military Training Areas as Semi Commons: The Territorial Valorization of Quirra (Sardinia) from Easements to Ecosystem Services

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