Natural Protected Areas Research Articles

A comparison of adult population fluctuation of Anastrepha pest species between agricultural environments and protected natural areas in northeastern Mexico

AbstractFruit fly pestiferous species within the genus Anastrepha Schiner (Diptera: Tephritidae) affect fruit growing in northeastern Mexico, particularly citrus and mango production. Little is known about the population fluctuation of these pests in protected natural areas adjacent to agricultural environments. This study aimed to compare and analyse the temporal profiles of adult populations of Anastrepha pest species inhabiting agricultural zones and a protected natural area. Six years of adult capture data of Anastrepha ludens (Loew), A. obliqua (Macquart), A. striata Schiner and A. serpentina (Wiedemann) were compared and analysed between commercial orchards and fruit tree areas located in the buffer zone of the biosphere reserve “El Cielo”. The analyses were carried out for each of two triennial periods (2008–2010 and 2019–2021). Temporal patterns of the pest populations were characterized, and generalized linear mixed models were used for data analysis. All locations registered the four species, although Anastrepha ludens and A. obliqua represented the highest number of adult captures. Populations of pest species of Anastrepha showed similar fluctuation patterns throughout the year regardless of the location. However, significant differences in the population size were noted between the “El Cielo” reserve and commercial areas. The “El Cielo” reserve and its surroundings captured the highest population levels of the four species. Persistent populations of A. striata and A. serpentina were related to the area under ecological protection. The “El Cielo” reserve is a shelter for the pest species of Anastrepha, which are mainly linked to backyard hosts. We discuss the importance of these findings in the context of an Area‐Wide Integrated Pest Management approach and of studying fruit flies' quarantine pests in Mexico's neotropical limits. Practical implications in designing specific phytosanitary measures to suppress or control pest populations are addressed.

Coastal Management: A Review of Key Elements for Vulnerability Assessment

Damaging and accelerated anthropization in coastal areas, as well as the need to adapt to climate change, means we must concentrate on improving management plans based on the diagnoses provided by coastal studies. Among these studies is the vulnerability assessment, obtained from evaluating a set of variables or indicators, which contribute to sustainable development. Since there is no single list of variables to consider in determining coastal vulnerability, 60 vulnerability studies from a period of 29 years (1994–2023), from across the globe, were consulted, and through a statistical mode method, the variables most used by multidisciplinary authors were identified. These studies were organized into groups: ecological, geomorphological, maritime climate, socioeconomic and legislative; creating sets categorized as the minimum indispensable, acceptable, and ideal variables. The results showed that most studies use between six and seven variables from only the maritime climate and geomorphological information groups. The number of variables used by individual studies, on the other hand, was not directly related to the scales (global, national, regional, local), but to the risks, such as flooding and erosion, it resolved. Only two studies included the minimum essential information for the legislative group, which is the presence of protected natural areas. Coastline displacements was the variable most used (43 studies), followed by the geoform type and the rate of sea level change (36), the wave regime (35) and the tidal range (33). The DSSs (Decision Support Systems) for coastal management were also reviewed, showing that these systems focus on a topic with a greater number of variables.

Assessing social carrying capacity of tourists in protected natural areas

ABSTRACT Knowing the limits of the social carrying capacity of tourism is a fundamental component of sustainable destination management, especially in protected natural areas, which implies understanding the characteristics of demand and travel. The research presented in this paper was conducted in a natural destination, the Sierras de Cazorla, Segura y Las Villas National Park (Spain), identifying two segments of tourists by means of cluster analysis according to a set of sociodemographic and socioeconomic variables, as well as their willingness to pay to improve the sustainability of destinations. Subsequently, each cluster was related to the variables of the social carrying capacity of tourism, and multivariate logistic regression analysis was applied. The results indicate that there is a relationship between the clusters identified and their social carrying capacity, which would be very useful to policy makers, managers, and business owners in protected natural areas, in terms of designing of pro-sustainability strategies.

Diversity of horseflies (Diptera: Tabanidae) of highly protected nature areas in Croatia: an overview

In Croatia, 55 taxa of Tabanidae (species and subspecies) were recorded in 17 of 22 highly protected nature categories, including Strict Reserves, National Parks and Nature Parks. These taxa amounted to 70.51% of the Tabanidae fauna of Croatia. New records were discovered for the following 22 species in all three protected nature categories: Silvius alpinus (Scopoli, 1763); Chrysops caecutiens (Linnaeus, 1758); Hybomitra distinguenda (Verrall, 1909); Hybomitra muehlfeldi (Brauer in Brauer & Bergenstamm, 1880); Hybomitra pilosa (Loew, 1858); Hybomitra solstitialis (Meigen, 1820) nec Lyneborg (1959); Tabanus autumnalis Linnaeus, 1761; Tabanus bovinus Linnaeus, 1758; Tabanus bromius Linnaeus, 1758; Tabanus cordiger Meigen, 1820; Tabanus exclusus Pandellé, 1883; Tabanus glaucopis Meigen, 1820; Tabanus maculicornis Zetterstedt, 1842; Tabanus shannonellus Kröber, 1936; Tabanus sudeticus Zeller, 1842; Tabanus tergestinus Egger, 1859; Tabanus unifasciatus Loew, 1858; Haematopota grandis Meigen, 1820; Haematopota italica Meigen, 1804; Haematopota pandazisi (Kröber, 1936); Haematopota pluvialis (Linnaeus, 1758) and Dasyrhamphis ater (Rossi, 1790). Similarities among Tabanidae fauna in four Nature Parks (Kopački rit, Lonjsko polje, Medvednica and Papuk) located in continental Croatia ranged from 55.81% to 74.41%. Nature Parks (Biokovo, Dinara, Učka and Vransko Lake) in Mediterranean part of Croatia had similarities ranging from 0% to 57.14%. In National Parks, the highest similarity (47.61%) was recorded between the Plitvice Lakes and Krka.

Innovative methodology for estimating Mountain-Front Recharge in data-scarce regions: A case study in Mexico City

Despite the critical role mountainous regions play in the hydrological cycle, the scarcity of subsurface hydrogeological data hampers accurate estimations of mountain-front recharge (MFR) and its components. This research proposes a cost-effective and replicable methodology for the preliminary estimation of MFR components in conditions of data scarcity. The proposed methodology, encompassing three phases, involves developing a hydrological conceptual model, creating a rainfall-runoff model, and estimating MFR values and their components (surface mountain-front recharge and mountain-block recharge); it enhances understanding of hydrologic processes in mountain zones by interpreting relationships among precipitation, altitude, and geology, influencing variations in recharge and water table position. A key contribution is the methodology's replicability in any mountainous area, even in the absence of detailed information, such as in protected natural areas. A case study is presented by estimating MFR in the Conservation Area of Mexico City (officially known as Suelo de Conservación), composed by the mountain ranges of Sierra de las Cruces and Chichinautzin Volcanic Field. The results emphasize the distinct distribution of MFR components and water table position in the two mountain regions, suggesting a need for a tailored approach to water management in the basin. The proposed methodology is cost-effective to understand the water dynamics in data-scarce regions, contributing to mountain-front recharge management.

Difference in Germination Traits between Congeneric Native and Exotic Species May Affect Invasion.

Germination traits are components of invasion potential, and comparing seed traits in sympatric native and invasive species can offer insights into the invasion process. We characterized seed germination traits and how they influenced the success of Eragrostis mexicana, a native species, and Eragrostis tenuifolia, an exotic species (Poaceae) in Mexico, in the context of their potential for biological invasion. Seeds from both species were collected from four sites in a natural protected area in Mexico City, and the germination of seeds of different ages was conducted in experiments at different temperatures. E. tenuifolia exhibited higher germination percentages than the native E. mexicana across all treatments. Seed age had differential effects, with older seeds of the native E. mexicana germinating better, while E. tenuifolia performed better with younger seeds. Temperature positively impacted germination for both species, although E. mexicana was limited at lower temperatures. Exotic E. tenuifolia can germinate over a wider temperature range with earlier germination rates, and generate a seed bank lasting several years, which may contribute to naturalization. The importance of germination traits in the context of invasive species establishment underscores the potential role of seed banks in facilitating biological invasions.

Flow of mangrove ecosystem services to coastal communities in the Brazilian Amazon

Mangrove forests are broadly recognized to support a variety of ecosystem services on coastal margins worldwide. These services may significantly contribute to the wellbeing of millions of people, but there is limited information about their importance in the Global South. This study mapped for the first time the flow of ecosystem services in Brazilian Amazon mangroves, which represent over 700,000 ha of mangroves in the country. We also identified the spatial changes in the flow of services across coastal landscapes, including urban, agricultural upland areas and coastal natural protected areas. Our matrix model indicated that mangroves, waterbodies, sandflats and mudflats are critical to the flow of multiple ecosystem services, including provisioning (fish, mariculture), cultural (historical and intrinsic value, research, and education), and regulation (climate, flood control, nursery, and breeding grounds). Social economic context, occupation, education, and residence time are important factors influencing villagers to identify the flow of ecosystem services, which could be compared across other coastal marine reserves in South America that have similar management of natural resources. Adjacent coastal upland habitats such as forests and croplands are important to support many provisioning ecosystem services to coastal villagers that would otherwise be obtained from mangroves, suggesting that protecting these connected habitats and supporting small-scale agriculture may help to avoid deforestation of mangrove forests. As over 80% of the mangroves in the country are managed as extractive reserves and may support communities with comparable socio-economic characteristics, we provide a foundation for the development and replication of ecosystem services assessments in Brazilian mangroves, which cover an area of over 1 million hectares. Our work highlights the importance of mangrove forests in providing food, and cultural services and to increase local climate resilience of coastal villages in the Amazon coast.

Visitors’ environmental attitudes and willingness to pay for nature conservation: the case of Langtang National Park in the Himalayas

<p>National parks are a destination for nature-based tourism (NBT) in both the developed and developing countries. National Park visitors with pro-environmental attitudes may be more likely to support the management's conservation efforts. However, managing and funding national parks and protected areas is a significant challenge, particularly in low-income countries. Visitor entrance fees to national parks are an often-heard option to secure sustainable funding for the management. This study aimed to measure environmental attitude and willingness to pay (WTP) for park entrance fees of international visitors to Langtang National Park in the Nepal Himalayas. The New Ecological Paradigm (NEP) scale was applied to assess environmental attitude, while a contingent valuation survey was carried out to explore WTP. International visitors of the park (n= 476) were surveyed over two years. The survey results suggest that national park visitors exhibited comparatively high pro-environmental attitudes, with a NEP score of 3.72 (5 being the highest score). Visitors were willing to pay a new entrance fee of USD 57.51 (mean) in comparison to the existing fee of USD 30. The willingness to pay a higher entry fee was positively correlated with a pro-environmental attitude and income. The increase in entrance fees could significantly improve the funding of national parks in Nepal and lead to an upgrade of its infrastructures without reducing the overall number of visitors.</p>

The Effect of the Vertical Layout on Underground Cable Current Carrying Capacity

Underground cable installation in historical areas, natural protected areas, narrow streets, or residential areas with high traffic flows is very difficult due to both legal permits and the conditions of the work sites. The trefoil layout requires a smaller channel than the flat layout. However, the trefoil layout carries some risks, such as damage to the cables together in the event of short circuit faults and reduced ampacity in single-side-bonded systems. This study’s scope examines the current carrying capacities and thermal effects of directly buried underground cables in trefoil and vertical layouts using CYMCAP power cable analysis software. A field investigation was also carried out to verify the analysis results. The performance of the recommended method was evaluated by considering current and temperature measurements from the fieldwork and analysis. According to the studied cable design, the current carrying capacities of the cables in flat and vertical layouts are similar and higher than in the trefoil layout. However, it should be taken into consideration that these results will vary depending on a cable system’s design parameters. As a result, this article emphasizes that a vertical layout can be considered as a layout option in certain areas.

Predicting the Potential Distribution Areas of the Asian Redtail Catfi sh (Hemibagrus wyckioides Fang and Chaux, 1949) in the Chao Phraya River, Thailand, using Maximum Entropy Modelling

Hemibagrus wyckioides is recognized as an economically important freshwater fi sh in Thailand. However, there are no available comprehensive data regarding the geographic distribution and habitat suitability of H. wyckioides in Thailand. In addition, its natural population has tended to continuously decrease. This study aimed to predict the suitable distribution areas of H. wyckioides in the Chao Phraya River, Thailand, using the maximum entropy (MaxEnt) algorithm based on climatic factors, including 11 temperature and 8 precipitation indices from the WorldClim database. Model performance was evaluated by the area under the receiver operating characteristic curve (AUC). The jackknife test was used to assess the contribution of each variable to the model. The results revealed that the MaxEnt model performed acceptably well, with an AUC value of 0.939, representing excellent accuracy in predicting the appropriate distribution areas of H. wyckioides in the Chao Phraya River. The potential distribution areas of H. wyckioides were observed mostly along the Chao Phraya River in Sing Buri and Ang Thong Provinces. According to the results of the jackknife test, 11 climatic variables impacted the distribution of H. wyckioides. The annual mean temperature (BIO1), precipitation of driest month (BIO14), and annual temperature range (BIO7) were the most important infl uencing variables, with impact values of 53.5%, 15.9%, and 11.9%, respectively. Therefore, understanding the potential distribution areas can assist researchers in monitoring, management, and conservation activities or with the development of new natural protected areas of H. wyckioides in high-quality areas in the Chao Phraya River.

ALIEN PLANT SPECIES IN GIURGIU COUNTY, ROMANIA: AN INVENTORY AND DISTRIBUTION ANALYSIS

Giurgiu County, a crucial hub in the Pan-European Corridor with the sole Danube bridge to Bulgaria, plays an important role in potential pathways for introducing alien plant species. However, the information regarding the distribution of alien plants in this county is incomplete. Our study aims to address this gap by providing a comprehensive analysis of the current distribution of alien plant species based on field records collected from September 2019 to November 2022. Following the guidelines of the POIM/178/4/1/120008 project, data were collected across diverse habitats. Our findings reveal 89 alien plant taxa, including 58 newly reported at the county level. Over half of the alien plant species (66.29%) are also present in the natural protected areas. The study contributes essential information for biodiversity conservation, emphasizing ongoing monitoring and invasive species management within Giurgiu County's protected areas.

A First Attempt to Describe the Real-Time Behavior and Fate of Marine Litter Items in the Nearshore and Foreshore under Low Energetic Marine Conditions

A field assessment was carried out in May 2023 in a natural protected area in South Italy to investigate the real-time behavior and fate of common marine litter items at different depths at the nearshore and foreshore under low energetic conditions. The field data were also compared with theoretical values calculated using theoretical formulations considering the Stokes drift current, wind-induced current, and current at breaking position. The wind approached from N to W, with values ranging from 2.4 to 3.8 m/s. The propagated significant wave height ranged from 14 to 21 cm, with an associated period of 3 s. Items with a positive buoyancy recorded different velocities. Very protruding (above water surface) items were greatly affected by windage and recorded velocities from 0.23 to 0.33 m/s; higher than the theoretical values that do not take into account windage. Theoretical values correctly predicted the velocity of other less-protruding items but slightly underestimated the velocity of neutral buoyancy items, evidencing in both cases the low relevance of the Stokes drift current. Items with a negative buoyancy moved (or not) in the bottom with different velocities. Different behaviors were observed at the breaking point, where items surfed (or not) spilling breaking waves, and at the foreshore, where items moved along the plunge step or in a “zig–zag” movement due to a swash–backwash process.

Forest Canopy Fuel Loads Mapping Using Unmanned Aerial Vehicle High-Resolution Red, Green, Blue and Multispectral Imagery

Canopy fuels determine the characteristics of the entire complex of forest fuels due to their constant changes triggered by the environment; therefore, the development of appropriate strategies for fire management and fire risk reduction requires an accurate description of canopy forest fuels. This paper presents a method for mapping the spatial distribution of canopy fuel loads (CFLs) in alignment with their natural variability and three-dimensional spatial distribution. The approach leverages an object-based machine learning framework with UAV multispectral data and photogrammetric point clouds. The proposed method was developed in the mixed forest of the natural protected area of “Sierra de Quila”, Jalisco, Mexico. Structural variables derived from photogrammetric point clouds, along with spectral information, were used in an object-based Random Forest model to accurately estimate CFLs, yielding R2 = 0.75, RMSE = 1.78 Mg, and an average Biasrel = 18.62%. Canopy volume was the most significant explanatory variable, achieving a mean decrease in impurity values greater than 80%, while the combination of texture and vegetation indices presented importance values close to 20%. Our modelling approach enables the accurate estimation of CFLs, accounting for the ecological context that governs their dynamics and spatial variability. The high precision achieved, at a relatively low cost, encourages constant updating of forest fuels maps to enable researchers and forest managers to streamline decision making on fuel and forest fire management.

Geomorphosites as Geotouristic Resources: Assessment of Geomorphological Heritage for Local Development in the Río Lobos Natural Park

Natural protected areas (NPAs) are territorial resources that have received an increasing number of visitors in societies with a high demand for landscapes of high aesthetic and scenic value. Tourism is one of the main activities in NPAs, and within this, geotourism plays an important role, becoming an effective resource in the promotion of natural heritage with repercussions on local and regional economic development. The aim of this work is to analyse geomorphosites’ tourist potential in natural protected areas, focusing on the case of the Río Lobos Natural Park (Castilla-León, Spain) and its geotourism cartography, as well as the proposal of different geotourism routes. To this end, a methodology is applied to the 14 geomorphosites inventoried in the Cañón del Río Lobos, based on a combination of different methods. Its application results in a classification with three thresholds (high, medium and low) for each geomorphosite analysed. In addition, a series of management proposals are included. The validity of this methodology applied for the evaluation of the tourist potential of geomorphosites endorses its application for other natural protected areas.

Preliminary study for the implementation of the “Wave Dragon” in Gran Canaria, Canary Islands, Spain

The island of Gran Canaria offers extraordinary weather conditions for the exploitation of renewable energy. But it has also an isolated power system that is vulnerable and has low inertia. This fact limits the penetration of this energy on the network. Both wind energy and photovoltaics have an important development in the island, but both have clear disadvantages for its exploitation, due to its unstable generation curves, its lack of predictability, the fact that this type of energy can’t be generated continuously, and consequently, the problems due to its difficult management. In adition, talking about wind energy, should be noted that Gran Canaria is an ecological paradise, full of natural protected areas, and also it has a high population density. That's why the space for future energetic installations is very limited. However, the Canary Islands are surrounded by an unlimited ocean. The swell is able to supply part of the insular consumption through wave energy. This study analyze the energetic situation of Gran Canaria, the nature of its waves, and the different mechanisms and techniques for the exploitation of this energetic resource, giving an added value to those that allow to obtain quality energy to be poured into the network.

Recent records of myxomycetes from New Brunswick, Canada

Studies of the diversity of myxomycetes or plasmodial slime moulds (Amoebozoa) in New Brunswick are lagging behind those of many other groups of terrestrial organisms. Here, we summarize the myxomycetes of the province as documented by recently collected specimens held by the New Brunswick Museum (NBM). Between 2007 and 2019, 264 specimens were collected, representing 80 species in 29 genera. Most of these records result from targetted searching during NBM-led biodiversity surveys (the BiotaNB project) in provincial protected natural areas between 2014 and 2019 and a mycological foray on Campobello Island in 2016. Previously, only seven species had been reported for the province. Consistent with their worldwide distributions and abundance, Arcyria cinerea, Fuligo septica, Ceratiomyxa fruticulosa, and Lycogala epidendrum were the most collected species, whereas the globally rare species Paradiacheopsis microcarpa has been collected in New Brunswick six times. Forty-two species were found only once, and five of these (Comatricha mirabilis, Fuligo laevis, Hemitrichia chrysospora, Lepidoderma neoperforatum, Listerella paradoxa) are rare worldwide.

Urban land expanded closer to protected areas in China: a three decade investigation over 2622 protected areas

ABSTRACT Various types of protected areas (PAs) are important for biodiversity conservation and essential for the 2050 Vision for Biodiversity. Rapid urban expansion affects the effectiveness of PAs in many ways. However, we still lack a clear understanding of the spatial relationship between urban expansion and different types of PAs in China during the last 30 years. Here, we analyzed the spatiotemporal changes in such relationship based on the boundaries of 2622 terrestrial PAs, as well as local Moran’s and the Kruskal-Wallis H test during the period of 1992–2020 at the national, regional and provincial scales. The results showed that the number of PA threaten by urban expansion at the national scale fluctuated over time (10 to 80), while the median of the nearest distances between PAs and urban built-up areas decreased from 80.4 km to 2.6 km. At the regional scale, the PAs in east China were more affected by urban expansion than the ones in west China, with higher number of threatened PAs and closer distance between PAs and urban built-up areas. More importantly, non-national PAs were more severely affected by urban expansion than national PAs, and the proportion of threatened non-national PAs is 92.5% in 2020. Thus, future planning and management should place more attention to the non-national PAs that are severely affected by urban expansion.

Factors and prerequisites for the formation of transboundary specially protected natural areas in the Russian‐Kazakhstan region

Aim. To conduct a geographical analysis of the network of specially protected natural areas in the Russian‐Kazakhstan transboundary region and identify promising areas of international cooperation in the field of protection and conservation of natural geosystems. Material and Methods. The study was built on the basis of statistical processing of state statistics of Russia and Kazakhstan and on geoinformation analysis of open data on population and materials obtained from official geoinformation portals containing information on specially protected natural areas of both countries. Results. The authors have established and mapped border protected natural areas of federal/republican significance in the Russian‐Kazakhstan region. By means of GIS technologies, "zones of influence" of key nature protection areas were determined by constructing centroids of protected areas and Thyssen/Varzar polygons. Population levels of the territories within the obtained zones was calculated. Promising transboundary specially protected territories have been identified. Mechanisms for drawing attention to the problems of nature protection are proposed. Conclusions. The results of the analysis of the parameters of the population of the territory near the most significant protected areas in the border zone of Russia and Kazakhstan are of practical importance in the integration of specially protected natural areas into the socio‐economic development of the regions using the experience and traditions of the local population and taking into account their interests.

Dysfunctional tourism behaviors in national parks: An exploration of causes, typologies, and consequences in the case of Saharan tourism

This study explores a seldom explored area of inappropriate tourist behavior in African national parks in the Sahara through a case study to support the management and promotion of tourism activities. Using the critical incident technique, 09 frontline employees of the Tassili N'ajjer National Park in Algeria were interviewed to identify tourist behavior that deviates from generally accepted social norms. Based on the survey results, a theoretical framework consisting of seven causes, nine categories of inappropriate behaviors, and three consequence dimensions was constructed. This theoretical framework provides elements for critical discussion of the sustainability of tourism in national parks, as well as a basis for further research. The results also enrich the literature on the subject and provide a basis for the study of North-South tourism dynamics. Theoretical and managerial implications are also discussed. Managerial implicationsThis research study significantly enhances the strategies employed in the management of national parks and protected areas in several ways. Identifying incentives for Jaycustomer behaviorPoor enforcement of regulations, lack of supervision, low prices, lack of knowledge, ambiguity of experience, egocentricity (common tragedy), anonymity and ethnocentrism are the underlying motivations for inappropriate tourist behavior. Expanded Understanding of Jaycustomer BehaviorIn addition to the categories of jaycustomer behavior identified in previous studies, this research unveils tourist behaviors that have been rarely documented in the literature. These include disengagement, dishonesty, pollution, noise, and waste. Influential Situational FactorsThe study finds that the perceived legitimacy of regulations and the level of supervision are the most influential situational factors affecting jaycustomer behavior. The necessary actions include the need for solid regulation, enforced through vigilant control measures and sanctions, and the improvement of guide performance through staff education and training. Impact of Poor Assimilation and Lack of InformationThe research highlights that poor assimilation of park regulations and a lack of information about them exacerbate cognitive biases in judgment formation, shedding light on the importance of effective communication and education strategies.

Exploring the relation between urban landscape service values and different infrastructures through crowdsourced data

ABSTRACT This research focuses on exploring and mapping Ankara’s urban points of interest and their values on different urban infrastructure types using geolocated data from Flickr. All publicly available data dated between 2005 and 2021 from Flickr were obtained through application programming interface and the infrastructure types were reclassified as green, blue, grey, and yellow, using the land use and land cover data based on Corine 2018. Spatial patterns for cultural service flow of landscape features and/or landscapes on different urban infrastructure types were mapped using Kernel density estimation in QGIS 3.21. The hotspots were assessed in terms of the cultural services they offered based on the Millennium Ecosystem Assessment (MA) framework, site visits, and observations. The findings showed that the city core mostly provided cultural heritage, identity, and recreational values. Results for the rural and peri-urban areas indicated that natural landscapes and protected areas stood out for their provision of cultural services, particularly for their recreational values. Our research identified user-intensive geographical clusters and hotspots that could benefit from interventions and enhancement for a more sustainable urban environment.