Historical Field Research Articles

Overlooked histories in ageing research: Pioneering women at the foundation of our field.

A list of this decade's most prominent names in ageing research would undoubtedly include many women who have led the field in recent years. While the field, and science in general, still have far to go in achieving gender parity in opportunities and recognition, we can celebrate the progress made to date. However, the longer 'history of the field' that many of us present in our classrooms, conference halls and writings often tends to be dominated by men. Although numerous men have made fundamental observations that have shaped our understanding of ageing from both a mechanistic and evolutionary perspective, the unfortunate reality is that women making similar contributions have not received equal recognition throughout much of our field's history. As a starting point for wider representation and further conversations in this area, we present here a short list of women-Marjory Warren, Lillian Jane Martin, Margaret Alexander Ohlson, Rebeca Gerschman and Marion J. Lamb-whose contributions were foundational to ageing research in the 20th century. Their work spanned theoretical, experimental and clinical insight into the biology of ageing-and yet their names are too seldom mentioned when introducing our field. We hope this list can be a starting point for a more inclusive recognition of the diverse scientists who helped pave the way for our field today.

Physics-based, data-driven production forecasting in the Utica and Point Pleasant Formation

We introduce a robust, data-driven and physics-based method to forecast the estimated ultimate recovery (EUR) of gas and condensates from the Utica-Point Pleasant Formation. By categorizing 3,410 horizontal wells into eight static cohorts based on the initial gas-oil ratios (GOR) and completion dates, we construct generalized extreme value (GEV) distributions of annual reservoir fluid mass production for each cohort. We use the expected values (means) to build historical, statistical well prototypes for each cohort. These prototypes account for hydraulic fracture deterioration, pressure interference between neighboring fractures, well interference, and advancements in completion technology. We extrapolate mass production of the reservoir fluids for several decades by fitting the scaling parameters of our physics-based model to the statistical well prototypes. A key innovation in this approach is using GEV statistics to generate a time series for each cohort’s GOR and condensate-gas ratio (CGR). We replace the individual production rates from all existing wells with their corresponding extended well prototypes and convert mass to volumetric rates. We sum up the latter rates and provide a base forecast of total reservoir fluid rates and cumulative production, closely matching the historical field production. Our base forecasts predict approximately 23 trillion scf of gas and 200 million barrels of condensate by 2035.The Utica-Point Pleasant Formation is divided into core and noncore areas, each further subdivided into regions based on fluid types. We analyze the future infill potential per square mile in each of these regions, proposing two drilling schedules and four potential future drilling scenarios. We identify approximately 35,847 potential future wells: 12,476 in the core area and 23,371 in the noncore area. The core wells can contribute about 157 trillion scf of natural gas and 0.9 billion barrels of condensate.This study marks the first integrated evaluation of the future production from the Utica-Point Pleasant Formation by combining GEV statistics, physics-based modeling, big-data analysis, geology, proposed drilling programs, and economics. It provides a comprehensive understanding of the Utica-Point Pleasant Formation’s significance in future U.S. shale production.

Ensemble machine learning-based virtual multiphase flow metering in high gas/oil ratio and water-cut reservoirs

By combining data-driven ensemble machine-learning algorithms and historical oil field portable test reports, this paper proposes a Data-Drive Multiphase Virtual Flow Meter (DD-MVFM) that estimates oil, gas, and water flow rates, provides real-time monitoring, and predicts future production for a 6-month period with appropriate accuracy. The proposed DD-MVFM utilizes the existing hardware used for measurements of basic variables such as temperature, and pressure at different locations at the well-head structure. The DD-MVFM can be employed in three ways. The first way is to be used as a verification tool for multiphase physical flow meters (MPFMs), making sure they are working properly and increasing confidence in the collected readings. The second way is to use the DD-MVFM as a redundant tool when the MPFMs are not available or going through maintenance. The third way, which is the main objective of our research, is to employ the proposed DD-MVFM as a stand-alone for the complete replacement of current and future MPFM installments. This, significantly lowers the operating cost, reducing the required portable field tests, and saving the need to build a major infrastructure for the set-up of MPFMs for new oil wells. Consequently, this contributes to the ambitious goal of reducing CO2 emissions. The DD-MVFM's development involves the fusion of data wrangling and machine learning algorithms for optimal performance. Initial testing indicates an 85 % correlation with the actual production rates, with potential for further improvement as more field test data is incorporated, making it a pioneering solution in the field of oil and gas management.

Geological and Geomorphological Characterization of the Anthropogenic Landslide of Pie de la Cuesta in the Vitor Valley, Arequipa, Peru

This study presents the geological and geomorphological characterization of the Pie de la Cuesta landslide, a large (>60 ha) slow-moving (up 4.5 m/month) landslide in Southern Peru. The landslide has been active since 1975 and underwent a significant re-activation in 2016; the mass movement has caused the loss of property and agricultural land and it is currently moving, causing further damage to property and land. We use a combination of historical aerial photographs, satellite images and field work to characterize the landslide’s geology and geomorphology. The landslide is affecting the slope of the Vitor Valley, constituted by a coarsening upward sedimentary sequence transitioning from layers of mudstone and gypsum at the base, to sandstone and conglomerate at the top with a significant ignimbrite layer interbedded within conglomerates near the top of the sequence. The landslide is triggered by an irrigation system that provides up to 10 L/s of water infiltrating the landslide mass. This water forms two groundwater levels at lithological transitions between conglomerates and mudstones, defining the main failure planes. The landslide is characterized by three main structural domains defined by extension, translation and compression deformation regimes. The extensional zone, near the top of the slope, is defined by a main horst–graben structure that transitions into the translation zone defined by toppling and disaggregating blocks that eventually become earth flows that characterize the compressional zone at the front of the landslides, defined by thrusting structures covering the agricultural land at the valley floor. The deformation rates range from 8 cm/month at the top of the slope to 4.5 m/month within the earth flows. As of May 2023, 22.7 ha of potential agricultural land has been buried.

Teoría Sociológica en la trama curricular de la formación en Psicopedagogía

The purpose of this work is to describe and interpret the pedagogical experience that, from the curricular space of Sociological Theory, as a social science, epistemological, methodological, theoretical, and ethical perspectives are deployed to address the object of study of Psychopedagogy, and to intervene regarding the social subject in a learning situation. Sociology, as a teaching space, together with other pedagogical spaces, enriches the career of professionals in Psychopedagogy, and it recognizes a set of tensions that accompany the interaction processes between various disciplines of the Social Sciences. An attempt is made to provide lenses from which to look dialectically at the learning subjects and all those who intervene in this process, with possible readings of the multiple, diverse, and complex social reality. A search is recognized to define the intersection of disciplinary fields of the Social Sciences, where many come into relationship, such as educational, sociological, historical, and psychopedagogical fields, among others.

Flow Field Analysis and Development of a Prediction Model Based on Deep Learning

The velocity of ocean currents significantly affects the trajectory prediction of ocean drifters and the safe navigation of intelligent vessels. Currently, most ocean current predictions focus on time-based forecasts at specific fixed points. In this study, deep learning based on the flow field prediction model (CNNs–MHA–BiLSTMs) is proposed, which predicts the changes in ocean currents by learning from historical flow fields. Unlike conventional models that focus on single-point current velocity data, the CNNs–MHA–BiLSTMs model focuses on the ocean surface current information within a specific area. The CNNs–MHA–BiLSTMs model integrates multiple convolutional neural networks (CNNs) in parallel, multi-head attention (MHA), and bidirectional long short-term memory networks (BiLSTMs). The model demonstrated exceptional modelling capabilities in handling spatiotemporal features. The proposed model was validated by comparing its predictions with those predicted by the MIKE21 flow model of the ocean area within proximity to Dalian Port (which used a commercial numerical model), as well as those predicted by other deep learning algorithms. The results showed that the model offers significant advantages and efficiency in simulating and predicting ocean surface currents. Moreover, the accuracy of regional flow field prediction improved with an increase in the number of sampling points used for training. The proposed CNNs–MHA–BiLSTMs model can provide theoretical support for maritime search and rescue, the control or path planning of Unmanned Surface Vehicles (USVs), as well as protecting offshore structures in the future.

Small Architectural Forms in Tomsk Wooden Buildings in 19–20th Centuries

The paper considers small architectural forms in the wooden manor buildings of Tomsk late in the 19th and early 20th centuries and their impact on the historical image of the city. The paper also studies preservation of historical cities and loss of historical and architectural wooden heritage.Purpose: To identify the types of small architectural forms in the wooden houses of Tomsk and determine their role in the city image.Methodology: Historical photographs, drawings, and field survey of wooden buildings, archival documents and photographs by local historians P. N. Kokhanenko and R. Perushin, allowing to determine lost small architectural forms and systematize them.Research findings: Determination of small architectural forms in preserving individual history and culture of the historical city.Practical implications: The obtained results can be used to study wooden buildings of Siberian cities and develop projects for their reconstruction in Tomsk.

Translation as a restoration: Turkish translations of the Venice Charter

ABSTRACT The Venice Charter, translated into at least 28 different languages, has been a significant reference at both national and international levels in the historic preservation field. It was born as a multilingual text written in English, French, Italian and Russian as the final declaration of an international congress; the original form of the Charter owes its presence to the practice of translation. Cevat Erder, the translator of the Venice Charter into Turkish, proposed that ‘the Venice Charter should be preserved as an historic monument’. Accordingly, this study interrogates both the monumentality of the Charter and its method of conservation through analyses of the Turkish translations of the Venice Charter. Two practices, translation and restoration, are explored together to inquire into the challenges of transmitting authenticity. The role of translator and restorer in the afterlife of monuments is inquired by examining the creative agency of translation practice regarding conservation of the literary text.

Linear Discriminant Analysis for Predicting Net Blotch Severity in Spring Barley with Meteorological Data in Finland

Predictive information on plant diseases could help to reduce and optimize the usage of pesticides in agriculture. This research presents classification procedures with linear discriminant analysis to predict three possible severity levels of net blotch in spring barley in Finland. The weather data utilized for classification included mathematical transformations, namely features of outdoor temperature and air humidity with calculated dew point temperature values. Historical field observations of net blotch density were utilized as a target class for the identification of classifiers. The performance of classifiers was analyzed in sliding data windows of two weeks with selected, cumulative, summed feature values. According to classification results from 36 yearly data sets, the prediction of net blotch occurrence in spring barley in Finland can be considered as a linearly separable classification task. Furthermore, this can be achieved with linear discriminant analysis by combining the output probabilities of separate binary classifiers identified for each severity level of net blotch disease. In this case, perfect classification with a resolution of three different net blotch severity levels was achieved during the first 50 days from the beginning of the growing season. This strongly suggests that real-time classification based on a few weather variables measured on a daily basis can be applied to estimate the severity of net blotch in advance. This allows application of the principles of integrated pest management (IPM) and usage of pesticides only when there is a proven need.

Рецензия на книгу: Кузембайулы А., Абиль Е., Алибек Т. Сибирский улус и казахи: проблемы этнической преемственности и исторической памяти

Results and scientific novelty. The reviewed book consists of four chapters. The first one is devoted to the history of research of the Shaybanids and the Taibugid statehoods in the south of Western Siberia, as well as to the theoretical and methodological approaches to the issues of ethnic history reconstruction in the Russian and Kazakh historical fields. The second chapter deals with “Historical memory as the source of the history of the Siberian ulus”. It presents memory artefacts of the so-called Siberian ulus in the Kazakh epos poetry and in historical legends on “The materials on Kyrgyz land use”. The sources presented here are virtually unknown to Russian researchers and they open new opportunities for the study of some issues of the late medieval Siberian statehood history. The third chapter raises issues of the prehistory of the Siberian ulus, with special attention given to the ulus of Taibugi, the study of whose descendants has recently taken the lead in Kazakh medieval studies. The fourth chapter is devoted to the history of the Siberian ulus, divided into separate stages (13th–14th centuries, the period of the collapse of the Golden Horde, the Siberian Khanate). The reviewed monograph is an important stage in the formation of modern Kazakh historiography on the issues of further study of the late medieval history of Western Siberia. It reveals some new sources, unknown or little known in earlier Russian historical science; there are interesting and original ideas on ethnic relations of the Siberian and Kazakh population and the origin of the Siberian princely dynasty of the Taibugids, which need further reflection. However, ignoring many achievements of the latest Russian historiography and its selective quoting, refusal to build an accurate chronology, skipping entire decades in the generalising conclusions, and the choice of the term “Siberian ulus”, which has not revealed its full potential, raise the question as to what extent the authors were really able to create a quality study on the role of the Shibanid statehood in the history of the formation of the Kazakh people.

Effects of urbanization on river morphology in a Mediterranean coastal city (Genova, Italy)

From the geomorphological point of view, urbanization changes fluvial systems more drastically than any other single human activity. Its impact on rivers is of interest as it results in serious issues concerning geomorphic instability, ecosystem service reduction, and geo-hydrological risk increase. The present study provides a quantitative and qualitative assessment of landscape changes driven by urbanization, which occurred from the mid-19th century to the present day along the lower reaches of the Bisagno and Polcevera rivers and their tributaries in the Mediterranean coastal city of Genova (NW Italy). The bankfull channel morphological adjustments, the minor hydrographic network disappearance, the land use and land cover changes, and the current physical accessibility of river margins were investigated. This work is based on collection and review of historical data, photograph interpretation, GIS analysis, and field surveys. Urbanization essentially occurred between the mid-19th century and the late 1930s. The bankfull channel of the Bisagno and Polcevera rivers experienced large narrowing associated with widespread establishment of channelization structures. The minor hydrographic network essentially disappeared underground. After the 1930s, further minor anthropogenic interventions were implemented to accommodate urban expansion and consolidate channelization works; however, the overall geomorphological setting remained unchanged. The geomorphological evolution of the Bisagno and Polcevera rivers followed three different phases associated with the urban expansion process. Nowadays, the study area is completely urbanized, the fluvial stems flowing through the valley floor are totally disconnected from their adjacent areas, the main rivers show a relevant geomorphological stability induced by anthropogenic pressures, and the accessibility of river margins for people is rather limited. The outcomes from this study represent an essential knowledge base for technicians and policymakers to plan urban development and inform effective and sustainable management measures. Moreover, they provide insights into the medium- and short-term morphological evolution of urban rivers.

Nová hledání staré Rusi

The aim of this study is to provide an elementary overview of contemporary Russian research on the history of Russia up until the 15th century and to present some of the issues to which contemporary Russian medieval studies is currently devoting itself. After a period of enforced isolation, Russian scholars in the 1990s began concerning themselves intensively with the methodologies used in Western medieval studies and has been trying to apply them to Eastern European historical material which Western medieval studies has heretofore – with rare exceptions – largely ignored. Following the establishment of democracy in academia, the need to revise the landscape of the history of the Russia of the Kievan and "partition" periods became apparent. However, due to the character of Russian sources, it is not possible in any simple way to transfer the methods used in working with Western medieval materials to the study of these periods. This is why the new historical fields have devoted themselves primarily to the 16th and 17th centuries, which provide the richest and most varied sources materials. Although it is certain that Russian medieval studies has succeeded in overcoming the crisis it experienced in the 1990s, one of the central problems afflicting contemporary Russian and Western medieval studies remains: the absolute separation between research on the middle ages in Russia and in Western and indeed in Central Europe.

François Hotman and the Critique of Gratian’s Decree: From the Investigation of Early Councils (De statu primitivae Ecclesiae, 1553) to the Rewriting of Europe’s Legal History (Antitribonian, 1567)

François Hotman (1524–1590) was one of the leading Reformed jurisconsults of his time. Past research has stressed his innovative interpretations and practices in the study of Roman, feudal, and French constitutional law. Little has yet been said about his views on canon law, another fundamental legal body in Western history that experienced renewed intellectual scrutiny during the sixteenth century. This paper investigates some of Hotman’s early work on canon law, focusing on his legal–historical reconstruction of the early Church in De statu primitivae Ecclesiae (1553) and his contribution to a budding historical field in Catholic circles: conciliar history. Despite the general lack of interest in the history of councils on the part of some leading Protestant theologians (Luther, Calvin, Bullinger), Hotman clearly believed that the textual tradition of councils provided a prime example of sustained popish efforts to control and deform the historical narrative and the legal structure of the Church. Yet, although he seems to have worked on demonstrating just that over more than forty years, he never again voiced his views on the matter in a dedicated work. Comparing in its conclusion De statu primitivae Ecclesiae with Antitribonian, this paper suggests that, in parallel to his better known ‘complex of Tribonian’ (Pierre Mesnard), Hotman seems to have suffered from a ‘complex of Gratian’: the doctrinal unity and institutional accomplishments of the early Church, as represented by the first councils, may well have dazzled Hotman and kept him from writing some definitive work against Gratian.

Heritage Regeneration Models for Traditional Courtyard Houses in a Northern Chinese City (Jinan) in the Context of Urban Renewal

The fundamental disputes in urban heritage regeneration stem from variations in power dynamics and inherent value systems among stakeholders. Addressing conflicts and power differentials involving governmental bodies, market forces, community residents, experts, and scholars is crucial for fostering sustainable urban heritage development. Recently, these contradictions have grown more pronounced as China’s urbanization has transitioned from rapid expansion to a phase focused on existing urban assets. In the present research, the typical traditional courtyard-style residential buildings in Jinan, a historic city in northern China, were selected as the object of study. These houses often suffer from problems such as outdated infrastructure and low living conditions and have become difficult to adapt to contemporary urban life. A case study approach was employed focusing on a representative courtyard house to develop models for renewing and regenerating urban heritage, specifically tailored to traditional courtyard houses. The aim was to address conflicts and power disparities among urban heritage stakeholders through diverse mechanisms. Methodologically, the research integrates historical study and field investigation, participatory analysis, and policy analysis. Primary data sources include field surveys, historical research, oral interviews, and drone aerial photography. Models were constructed in the present study—namely, the heritage self-renewal, heritage revitalization, and heritage transformation models—for traditional courtyard houses. These models were designed to foster sustainable urban heritage development through collaborative efforts across various stakeholders and administrative levels. They will optimize the renewal mechanism of urban heritage, thus providing diversity and multiple possibilities for the preservation and reuse of architectural heritage in China. They aim to realize comprehensive urban heritage values, including vitality, health, efficiency, and equity, while accommodating the interests of diverse stakeholders.

Spatiotemporal Dynamics and Drivers of Coastal Wetlands in Tianjin–Hebei over the Past 80 Years

Coastal wetland ecosystems are critical due to their diverse ecological and economic benefits, yet they have been significantly affected by human activities over the past century. Understanding the spatiotemporal changes and underlying factors influencing these ecosystems is crucial for developing effective ecological protection and restoration strategies. This study examines the Tianjin–Hebei coastal wetlands using topographic maps from the 1940s and Landsat satellite imagery from 1975, 2000, and 2020, supplemented by historical literature and field surveys. The aim is to analyze the distribution and classification of coastal wetlands across various temporal intervals. The findings indicate an expansion of the Tianjin–Hebei coastal wetlands from 7301.34 km2 in the 1940s to 8041.73 km2 in 2020. However, natural wetlands have declined by approximately 44.36 km2/year, while constructed wetlands have increased by around 53.61 km2/year. The wetlands have also become increasingly fragmented, with higher numbers of patches and densities. The analysis of driving factors points to human activities—such as urban construction, cultivated land reclamation, sea aquaculture, and land reclamation—as the primary contributors to these changes. Furthermore, the study addresses the ecological and environmental issues stemming from wetland changes and proposes strategies for wetland conservation. This research aims to enhance the understanding among researchers and policymakers of the dynamics and drivers of coastal wetland changes, as well as the major challenges in their protection, and to serve as a foundation for developing evidence-based conservation and restoration strategies.

Quantifying the contributions of precipitation, topography and human activity and their coupling to the development of permanent gully

Gully erosion poses greater threat to ecological and food security globally. The gully development rate and the contributions of primary influencing factors have not been thoroughly understood, primarily due to the complicated environmental conditions characterized by climate, soil, topography, and human activities. Therefore, this study was conducted to explore the gully development and contributions of its driving factors from 2013 to 2021 based on historical Google Earth images and field investigation in a typical rolling hilly watershed of northeast China. The climatic factors reflected by precipitation, topographical factors related to gully, and anthropological factors reflected by tillage ridge orientation and linear anthropological factors (LAF) including roads and shelterbelts were obtained. The tillage effect index (TEI), LAF effect index (LEI) and the distance from gully to LAF (DL) were calculated to analyze the influence of anthropological factors on gully development. The results showed that the linear, areal and volumetric gully development rates (RL, RA and RV) showed great variabilities in different periods with the average of 5.69 m year−1, 137.37 m2 year−1 and 428.54 m3 year−1, respectively. The accumulated RL, RA and RV increased exponentially or linearly with accumulated precipitation amount (P), erosive rainfall duration (RD), erosive rainfall (ER), maximum 30-min rainfall intensity (I30) and rainfall erosivity (RE) increased (P < 0.001). The slope of the gully head (HS) was identified as the primary topographic factor influencing RL. Both RA and RV showed positive power relationships with the drainage area of the gully (CA) and the upstream gully head (HA). The human activity reflected by tillage ridge orientation, unpaved road and shelterbelts had different effects on RL and RA. The increased orientation angle between gully and tillage ridge (ROA) mitigated headcut retreat for normal precipitation year but it would aggravate headcut retreat in the periods of continuous heavy rainfall. Gully bank with the ROA of 30−90° was more prone to areal development. The TEI, LEI and DL had significantly positive linear, power or exponential relations with gully development rates. The PLSR and VPA analysis indicated that topography, the interaction between topography and human activity, and the coupled effects of precipitation, topography and human activity were the main contributor of RL, RA and RV, respectively, and accounted for 34 %, 50 %, and 40 % of total variability of RL, RA and RA, respectively. This study can provide guidance for the control of gully erosion and the optimization of land use structure in the gully catchment.

On the Trail of Traditional Turkish Neighbourhood and Houses: Analysis of the Rural Settlement of Sadağı in Orhaneli

ABSTRACT As global resources dwindle, the significance of traditional rural settlements becomes ever more pronounced, serving as a crucial component of humanity’s shared heritage. The Orhaneli district and its villages in Bursa province offer a rich field of research, particularly in uncovering the architectural and cultural characteristics of the Turkish house. The Ottoman Empire, which ruled for centuries over a vast geographical area including Anatolia and the Balkans, was founded in and around Bursa, its first capital. Consequently, the earliest examples of settlements within the empire can be found in this region. The Sadağı neighbourhood of the Orhaneli district, which forms the subject of this study, is post-dated to a period prior to the conquest of Bursa. This settlement was established by the Turkmen (Yörük) population, who played a fundamental role in the foundation of the Ottoman Empire. Houses formed the core of the settlements of the Ottoman period. These dwellings incorporated traditional materials and methods, local culture and identity, climatic conditions, and local construction techniques, reflecting a traditional extended family lifestyle. In this study, the rural settlement of Sadağı was examined using a combination of historical research methods and field studies. Overall, the Sadağı neighbourhood is representative of traditional Ottoman-Turkish settlement characteristics.

Revitalizing Rural Landscapes: Applying Cultural Landscape Gene Theory for Sustainable Spatial Planning in Linpu Village

In the context of rapid urbanization, it is imperative to address the preservation and sustainable development of rural landscapes. This study introduces a novel framework using cultural landscape gene theory to enhance the landscape spatial pattern of Linpu Village, China. Employing a multi-method approach, including data collection and historical data analysis, GIS analysis, and field surveys, we analyze the village’s landscape features and identify a well-preserved “one core, two wings” spatial configuration with diminishing accessibility from the center to the periphery. The study uncovers significant challenges to landscape coherence and legibility, including landscape element discontinuity, inadequate maintenance, and fragmented information. To address these issues, we propose optimization strategies aimed at revitalizing weakened cultural landscape genes, repairing disrupted elements, ensuring corridor integrity, and improving spatial organization. The extraction–construction–analysis–preservation model established in this research not only delivers a comprehensive analysis of Linpu’s cultural landscape but also offers a scalable framework for preserving the ecological and cultural integrity of traditional villages. This study contributes to the practical implementation of sustainable landscape strategies, enhancing the ecological adaptability and resilience of rural environments in the face of urban encroachment.

Zoroastrians in the Economy of Yazd During the Qajar and Pahlavi I Dynasties

ABSTRACT In the Qajar period, Zoroastrian merchants of Iran were able to engage in commercial activities with fewer restrictions than in the past. In this article, the economic performance of the Zoroastrians in this period was examined based on the institutional approach as well as the reflection of this trend on the historical and commercial context of Yazd (as one of the most important centres of Zoroastrian society) by studying the historical texts and field studies in the historical context of this city. Based on the results, it was found that the existence of formal and informal institutions had a direct impact on the prosperity or stagnation of the commercial activities of Zoroastrians in both Qajar and first Pahlavi periods. Following the emergence of supporting institutions, the architectural spaces related to their commercial activity relatively increased, but the resistance of informal institutions prevented their widespread presence in the city’s main market.

Adapting pest management strategies to changing climates for the redlegged earth mite, Halotydeus destructor

As climate change continues to modify temperature and rainfall patterns, risks from pests and diseases may vary as shifting temperature and moisture conditions affect the life history, activity, and distribution of invertebrates and diseases. The potential consequences of changing climate on pest management strategies must be understood for control measures to adapt to new environmental conditions. The redlegged earth mite (RLEM; Halotydeus destructor [Tucker]) is a major economic pest that attacks pastures and grain crops across southern Australia and is typically controlled by pesticides. TIMERITE® is a management strategy that relies on estimating the optimal timing (the TIMERITE® date) for effective chemical control of RLEM populations in spring. In this study, we assessed the efficacy of control at the TIMERITE® date from 1990 to 2020 across southern Australia using a simulation approach that incorporates historical climatic data and field experimental data on life history, seasonal abundance, and population level pesticide responses. We demonstrate that moisture and temperature conditions affect the life history of RLEM and that changes in the past three decades have gradually diminished the efficacy of the TIMERITE® strategy. Furthermore, we show that by incorporating improved climatic data into predictions and shifting the timing of control to earlier in the year, control outcomes can be improved and are more stable across changing climates. This research emphasises the importance of accounting for dynamic environmental responses when developing and implementing pest management strategies to ensure their long-term effectiveness. Suggested modifications to estimating the TIMERITE® date will help farmers maintain RLEM control outcomes amidst increasingly variable climatic conditions.