Human-environment Interactions Research Articles

Cross-Cultural Applications of the New Ecological Paradigm in Protected Area Contexts

Working mostly in Western, Educated, Industrialized, Rich, and Democratic countries, environmental psychologists have developed scales assessing relationships between pro-environmental beliefs and behaviors. Working in Tanzanian and Indonesian protected area landscapes, containing important biodiversity and conflict over human-nature interactions, we investigate the utility of the New Ecological Paradigm for measuring pro-environmental beliefs and understanding support for protected area regulations. We found the New Ecological Paradigm ineffective at measuring pro-environmental beliefs in both countries; in Tanzania due to acquiescence bias, and in Indonesia exploratory factor analysis supported none of the original factors, with 4 of 15 statements loading onto a novel “eco-fragility” factor. Individual statements in both countries and the eco-fragility factor in Indonesia were weakly correlated with support for protected area regulations, highlighting while elements of the New Ecological Paradigm can improve understanding of support for protected area regulations, care must be taken when applying psychometric tools in novel cultural contexts.

Desert-oasis evolutionary process in the Tarim Basin since ∼ 2.2 ka B.P. during the late Holocene and their environmental implications

Oases, serving as ideal locations for human settlements in arid regions, exhibit extreme sensitivity to regional climatic fluctuations. Consequently, the oasis deposition sediments play a pivotal role in the study of regional paleoenvironmental changes and the exploration of prehistoric human-environment interactions. The YSD and STM sections, both typical aeolian-lacustrine sections located at the edge of the Tarim Basin, were investigated in this study. By analyzing optically stimulated luminescence (OSL) dating results and grain-size proxy indicators, the environmental evolution patterns in the Tarim Basin since approximately 2.2 ka BP were reconstructed. Additionally, the parametric end-member analysis on the grain-size data was conducted to explore the environmental significance revealed by each end-member. The research findings indicate that: (1) ∼ 2.2–1.8 ka B.P., sediment morphology and grain-size parameters indicate that the climate in the Tarim Basin recorded by the STM section was relatively dry, with rivers gradually receding and frequent sand-drift activities. During the development of the YSD section (∼1.67–1.5 ka B.P.), the environmental conditions in the Tarim Basin transitioned to a relatively humid phase, with the Yarkand River experienced multiple episodes of natural diluvial deposition. The grain-size data of two sections both comprise five sedimentary dynamic components, serving as sensitive indicators of regional humidity conditions and winter monsoon intensity. (2) The oasis development in the Tarim Basin during the late Holocene (particularly refers to between ∼ 2.2 ka B.P. and ∼ 1.4 ka B.P.) exhibits a significant positive correlation with temperature records. (3) Environmental changes and human activities jointly regulate the spatial and temporal distribution and number of archeological sites during the development of both sections. However, the dominance of the two factors varied across different historical periods.

Landscape positioning of Neolithic mustatil stone structures along the margins of the Nefud Desert, Saudi Arabia

Monumental rectangular stone structures called mustatils are an important emerging feature of the Holocene archaeological record of northwestern Arabia. To date, few have been excavated, with available radiocarbon dates suggesting an age range of ca. 5400–4200 BC. Here we present a rigorous spatial analysis to identify the patterning and landscape context of 169 mustatils in the southern and western margins of the Nefud Desert. This included: (1) a systematic survey of satellite imagery to identify mustatils; (2) viewshed analysis to examine location and landscape visibility; (3) a point process model to understand how diverse environmental and landscape variables affect mustatil locations; (4) mark correlation function to assess spatial patterning of mustatils based on their size. Results indicate that mustatil locations are determined most by proximity to water (likely locations of enhanced surface water occurrence under the enhanced humidity of the Mid-Holocene), on east facing slopes, close to rocky areas, at elevations between 880 and 950 masl, and on or near topographic ridges (positive topographic position index). Viewshed analysis showed that mustatils are preferentially located in areas that have good views, but not the best that are available, indicating complex landscape positioning that balances a range of topographic and behavioural factors. Using a rank permutation method with size (length) of mustatils as a proxy for labour mobilization we show that mustatils within clusters are not arranged hierarchically based on size, and were likely built by non-stratified groups of people. Our analyses show that people were choosing multiple factors when deciding where to build mustatils, and that the distribution of mustatils may relate to different groups of people resulting in the construction of complex ritual landscapes. As one of the earliest examples of large-scale monumental stone structure construction in global prehistory, understanding mustatils can enlighten us on human-environment interaction during the Neolithic.

HiSC4D: Human-Centered Interaction and 4D Scene Capture in Large-Scale Space Using Wearable IMUs and LiDAR.

We introduce HiSC4D, a novel Human-centered interaction and 4D Scene Capture method, aimed at accurately and efficiently creating a dynamic digital world, containing large-scale indoor-outdoor scenes, diverse human motions, rich human-human interactions, and human-environment interactions. By utilizing body-mounted IMUs and a head-mounted LiDAR, HiSC4D can capture egocentric human motions in unconstrained space without the need for external devices and pre-built maps. This affords great flexibility and accessibility for human-centered interaction and 4D scene capturing in various environments. Taking into account that IMUs can capture human spatially unrestricted poses but are prone to drifting for long-period using, and while LiDAR is stable for global localization but rough for local positions and orientations, HiSC4D employs a joint optimization method, harmonizing all sensors and utilizing environment cues, yielding promising results for long-term capture in large scenes. To promote research of egocentric human interaction in large scenes and facilitate downstream tasks, we also present a dataset, containing 8 sequences in 4 large scenes (200 to 5,000 m2 ), providing 36k frames of accurate 4D human motions with SMPL annotations and dynamic scenes, 31k frames of cropped human point clouds, and scene mesh of the environment. A variety of scenarios, such as the basketball gym and commercial street, alongside challenging human motions, such as daily greeting, one-on-one basketball playing, and tour guiding, demonstrate the effectiveness and the generalization ability of HiSC4D. The dataset and code will be publicly available for research purposes.

Late Pleistocene to Holocene alluvial deposits of the Inaouène Valley and their paleoenvironmental significance (north Morocco)

This study investigates the paleoenvironmental changes and fluvial dynamics in the Inaouène River Valley of central northern Morocco over the last 22,000 years. Through comprehensive field study and radiocarbon dating of Upper Pleistocene and Holocene alluvial deposits, the research identifies six main alluvial units reflecting distinct phases of fluvial activity and environmental conditions. These phases include coarse gravel aggradation between ∼22 and 15 cal kaBP, indicating a braided channel system, followed by multiple fine-dominated alluviation phases occurring at ∼13, ∼10, ∼6–5, ∼3, ∼0.7–0.3, and ∼0.1-0 cal kaBP. The trunk channel evolved from a low-sinuosity wandering style in the Early-Middle Holocene to a high-sinuosity pattern in the Late Holocene. Periods of landscape stability, evidenced by soil formation, were dated around 0.3 and 0.8 cal kaBP, with additional episodes estimated just after ∼12 cal kaBP and around 3.8 cal kaBP. Notably, the study also uncovered evidence of significant human intervention during the Middle Holocene.A comparison with other archives enabled us to reconstruct late Pleistocene and Holocene palaeoenvironmental conditions on both regional and supraregional scales, linking specific stages of floodplain development to prevalent influencing factors. Emphasizing the fluvial system response, we present a cause-effect model that focuses on long-lasting climatic phases (e.g., Last Glacial Maximum, MIS2-MIS1 transition, African Humid Period) as well as sub-millennial to centennial Rapid Climate Changes, North Atlantic cooling events, and solar activity minima. Human intervention played a key role in the Inaouène's evolution during the Middle Holocene, as evidenced by clear anthropogenic markers found in the associated deposits. These findings not only contribute to our understanding of the area's geomorphological history but also highlight its significant archaeological potential, opening new avenues for interdisciplinary research in this understudied region.The study offers new insights into central northern Morocco's late Quaternary alluvial geochronology and paleoenvironmental evolution, aligning with regional findings and contributing to a broader understanding of climate-driven landscape changes and human-environment interactions across North Africa and the Mediterranean.

Revisiting moated sites in Northeast Thailand: integrating spatial analysis with previous and new research insights

Moated sites in northeast Thailand serve as pivotal evidence of human–environment interaction since the Iron Age and have been subject to extensive study. This research conducts a comprehensive examination of moated sites, aiming to analyze their spatial characteristics and relationships with physical environmental factors across various scales, including regional and major river basins. To achieve these goals, advanced GIS tools including average nearest neighbor (ANN) analysis, kernel density estimation (KDE), standard deviational ellipse (SDE) analysis, and the Kruskal–Wallis test are employed. By incorporating a dataset of 468 moated sites and expanding the geographic scope beyond previous studies, this research offers new insights into settlement patterns and environmental interactions. Contrary to earlier interpretations suggesting random dispersion, the study’s findings reveal a clustering pattern, indicating intentional spatial organization by ancient communities. The study also highlights the influence of rainfall on the number of moats, with multiple moats more common in lower rainfall areas and single moats in higher rainfall regions. Additionally, the results observe that sites with more moats are typically found at higher elevations, although no significant correlation between elevation and site size was identified, challenging previous studies' conclusions. These results underscore the importance of local environmental conditions, such as rainfall and elevation, in shaping the distribution and characteristics of moated sites. The findings highlight the complex interplay between environmental factors and human settlement strategies, emphasizing the role of water management in ancient communities.

Enhancing human well-being through cognitive and affective pathways linking landscape sensation to cultural ecosystem services

ContextLandscape sensation is essential for the delivery of cultural ecosystem services (CESs), yet the pathways through which these services are delivered remain inadequately understood. Exploring how people obtain CESs from landscapes facilitates better understanding of the tradeoffs and synergies between ecosystem services and landscape sustainability.ObjectivesThis study aimed to elucidate the sensory pathways that links landscape attributes to CESs, focusing on the roles of cognitive and affective experiences.MethodsWe analyzed social media comments for the measurement scale of cognition. We employed partial least squares structural equation modeling to integrate sensation, cognition, affect, and satisfaction, using questionnaire data (n = 503).ResultsCognitive comprehensions and affective responses play a crucial role in interpreting CESs while sensory experiences do not directly determine people’s satisfaction with CESs. The effective pathways are achieved through the sole mediator of cognition or by serial mediators of cognition and affect. Of the two mediators, cognition has a more profound mediating effect than affect.ConclusionsBoth physical and biological components, such as landscape sensory attributes, as well as cognitive and affective responses, influence human-nature interactions. These components should be considered when promoting the sustainability of human-dominated landscapes.

Distentanging the late-Holocene human–environment interactions in the Altai Mountains within the Arid Central Asia

Understanding the impacts of human activities on landscapes necessitates a comprehensive analysis of historical changes in climate, vegetation, fire and land utilization. The human-environment interactions were investigated through the analysis of new charcoal data from Kelashazi Peat in the Altai Mountains, compared with the detailed paleoenvironmental records and historical human activities (e.g., agriculture and pastoralism) at other three distinct sites. The findings suggest that the late-Holocene (prior to ∼2000 years ago) fire activities were mainly influenced by temperature at higher elevations and were primarily driven by vegetation cover at lower elevations. Over the past two millennia, human activities have increasingly impacted fire dynamics. Elevated fire frequencies during the Medieval Warm Period at higher elevations were linked to warmer climates and intensified pastoral activities. Lower fire incidences at lower elevations may be attributed to population outflows during the Medieval Warm Period, while heightened fire occurrences at lower elevations might result from increasing agricultural activities during the Little Ice Age. This study underscores the intricate interplay between natural climate-vegetation-fire dynamics and anthropogenic burning trends in the late Holocene across different elevations of the Altai Mountains within the Arid Central Asia.

The subsistence strategy transformation of the Yangshao culture (6900-4800BP) in the Guanzhong Area and Western Henan based on new faunal materials from the Miaodigou site

While the significance of the Yangshao culture in early China is widely recognized, systematic and detailed analysis and discussion of its subsistence strategy are lacking, especially for faunal materials. This paper examines the new and crucial faunal remains that include 3,400 identified specimens from the Miaodigou site unearthed in 2002. At that site, pig husbandry was predominant and wild animals were occasionally hunted as supplemental resources. In combination with published research including zooarchaeology, paleoethnobotany, and carbon and nitrogen stable isotope studies of 29 other sites mainly from the Guanzhong area and western Henan, we argue that subsistence strategy underwent a comprehensive and profound transformation during the middle period of Yangshao culture, namely Miaodigou period, as crop production and pig husbandry flourished in a wide range of areas. Domestic pigs accounted for over 80% of mammals, reaching an unprecedented proportion in the Neolithic age and manifesting a high level of consistency in feeding and slaughtering, and foxtail millet replaced broomcorn to become the most important crop at all sites, both of which demonstrate the breadth and depth of this transformation. The tension between the deterioration of climate, the decrease of surrounding wildlife resources due to excessive development and the continuous growth of the population may have contributed to this transformation. This study enriches our understanding of human-environment interactions in the embryonic stage of Chinese civilization and triggers further thoughts on how culture, society, the environment and subsistence were entangled in the development of civilization.

Perceived setting interdependencies: the hidden barrier to urban parks’ stress-alleviation potential

ABSTRACT Previous research suggests that perceived setting interdependencies (PSI) affect human-environment interactions, impacting restorative experiences in the leisure time settings. However, the relationship between the environmental elements of urban parks, PSI, and their effects on cognitive restoration remains unclear. This research examined the relationship between the PSI experienced by urban park users and their feelings of “being away” and “fascination,” particularly in the context of stress. The study analysed data from 435 park users in Bangkok using structural equation modelling. Findings indicated that park features, such as biodiversity and amenities, influenced PSI, impacting stress recovery. High PSI negatively influenced stress recovery, suggesting the detrimental effects of environmental overlap. Contrary to the attention restoration theory, being away negatively correlated with stress recovery, while fascination positively impacted being away and stress recovery. The study suggests that urban park designs should minimize PSI and include fascinating features to effectively facilitate psychological restoration and stress recovery.

Archaeobotany in an era of change and challenge: potential and fragility of macro- and micro-remains

ABSTRACT Apart from helping us understand past communities’ response to climate change and their plant management resilience mechanisms, archaeobotanical information may also serve as a basis to rethink our economic system and implement new solutions to current challenges (e.g. re-adopt forgotten crops or implement circular economy models). Already fragile by nature, the integrity of archaeobotanical heritage is affected by current climate events, such as changes in temperature and precipitation. One consequence is the loss of precious knowledge about past economies and human-environment interactions and its potential to inform us on questions relevant to the present and future. With the Iberian Peninsula as an example, we present a thoughtful insight into the manifold kind of information derived from archaeobotanical assemblages and the harm in losing it. Finally, we call for action to fight against climate change while drawing archaeologists’ attention to the importance of protecting archaeobotanical heritage.

Balancing environmental sustainability: Socio-economic drivers and policy pathways in oil-importing nations

This paper explores the intricate interplay of socio-economic drivers influencing environmental sustainability in oil-importing countries, examining CO2 emissions and greenhouse gas concentrations over the period from 2000 to 2021. Employing the Feasible Generalized Least Squares (FGLS) and Prais-Winsten regression method (PCSE), data from fifteen major oil-importing nations are scrutinized. The study identifies pivotal socio-economic factors, including environmental innovations, green energy adoption, and energy prices, as key drivers in mitigating emissions. Environmental innovations, catalyzing cleaner technologies, emerge as effective tools in curbing hazardous emissions and promoting green energy sources. The study underscores the trade-off between energy use and prices, advocating a strategic shift towards green energy adoption. It also highlights the adverse association between industrial and agricultural production with emissions. Policy interventions are recommended, emphasizing the need for cleaner technologies and the adoption of renewable energy practices, thus achieving a harmonious balance between economic development and environmental quality. The research offers valuable insights into the socio-economic dimensions of environmental sustainability, emphasizing the importance of well-balanced policies that align environmental innovations, environmental conservation, and energy transition in oil-importing nations within the broader context of human-environment interactions.

Ecocritical Study: Dwelling Aspect Portrayed in Richard Powers the Overstory

This study aims to explore the human-nature relationship and its environmental impact in Richard Powers’s The Overstory through Greg Garrad’s ecocritical framework, with a particular focus on the concept of Dwelling. Garrad’s theory distinguishes between Georgic, which represents a damaging interaction with nature, and Ecological Indian, which embodies a nurturing approach. This research examines how the novel portrays these contrasting relationships, illustrating how the characters’ connections with nature either contribute to environmental harm or foster preservation. By analyzing the novel through Garrad’s theoretical lens, the study reveals how Powers’s characters confront and mitigate the adverse effects of individuals and corporations on the environment, showcasing the intricate dynamics of human-nature interactions in the context of environmental stewardship. The analysis highlights how the novel’s narrative strategies and character arcs emphasize the critical role of empathy and ecological consciousness in addressing environmental challenges. Furthermore, it underscores the potential for literature to inspire real-world environmental action by reflecting on the complexities of human engagement with the natural world. Through this exploration, the study contributes to a deeper understanding of how literary works can shape and influence environmental attitudes and behaviors.

Routes with roots: Pedestrian route choices and sense of place of an urban university community

Understanding how people choose routes in urban environments is essential for effective urban planning. While conventional transportation studies focus on utilitarian decision-making, this research investigates the complex interplay between human-environment interactions and emotional attachments to places, which influence transportation choices. Specifically, we examine the impact of sense of place in pedestrian route choice within a densely populated urban university community. Unlike typical urban settings characterized by clear roads and landmarks, university environments often feature intricate layouts with diffuse pathways, shared spaces, and a lack of clear spatial hierarchies. This complexity challenges conventional spatial knowledge acquisition methods. Individuals navigating such environments tend to rely on socio-sensory wayfinding strategies, developing emotional connections to specific places and routes over time. Consequently, route choices in these contexts may not always be deliberate but rather subconscious and nuanced. Our study focuses on elucidating the impact of the sense of place—a composite of conscious and subconscious perceptions, emotions, and attachments to a location—on daily route decisions. Through structural equation modeling (SEM) analysis, we demonstrate that the sense of place significantly influences route choices within community building complexes, surpassing utilitarian considerations as a primary explanatory factor. These findings underscore the importance of emotional and psychological factors in shaping urban route decisions, offering valuable insights for urban planning and management strategies.

‘Welcome to the Anthropocene’

The geological concept ‘the Anthropocene’ circulates widely outside Earth System Science – in museum communities, public culture, social sciences, and amongst social science and humanities scholars, artists, activists and public historians too. It is an evident idea for public historians today working with environmental history to engage with a concept that successfully and popularly bridges academic and public interests. This article discusses the concept of the Anthropocene within public environmental history’s historiography and brings in Dipesh Chakrabarty’s influential discussions from the academic field of history and theory about the non-synchronous temporalities geological time and historical time. The article categorizes public environmental history’s methodological approaches since the field emerged in the 1990s, revealing the important concepts being landscapes, human-nature interactions, climate change, sustainability and the Anthropocene. It concludes that the Anthropocene is a concept that can further develop public environmental history but that it also a paradox to the field potentially affecting a core idea in public history – relationships to publics. This has to do with temporal implications of the concept: it squeezes the temporality of memory important to public history and humans out of view; it imposes an extremely slow and long chronological time that is unfamiliar if not foreign to ordinary people to perceive of; it carries with it the idea about a future without humans and other species of today.

Human-Environment Interactions Shape Mosquito Seasonal Population Dynamics.

Mosquito species, including the Asian tiger mosquito, can transmit disease-causing pathogens such as dengue, Zika, and chikungunya, with their population dynamics influenced by a variety of factors including climate shifts, human activity, and local environmental conditions. Understanding these dynamics is vital for effective control measures. Our study, conducted in Jardí Botanic Marimurtra from May to November 2021, monitored Ae. albopictus activity using BG-Traps and investigated larval control effects. We employed Generalized Linear Mixed Models to analyze variables like weather, human presence, and larvicidal control on adult mosquito abundance. Adults of Ae. albopictus exhibited a seasonal pattern influenced by temperature but with bimodal peaks linked to cumulative rainfall. Proximity to stagnant water and visitor influx directly affected mosquito captures. Additionally, the effectiveness of larvicide treatments depended on interactions between preceding rainfall levels and treatment timing. Our research emphasizes the significance of studying vector ecology at local scales to enhance the efficacy of control programs and address the escalating burden of vector-borne diseases. Considering the impacts of extreme weather events and climate shifts is essential for the development of robust vector control strategies. Furthermore, our distinct findings serve as a prime illustration of utilizing statistical modeling to gain mechanistic insights into ecological patterns and processes.

Make the desert bloom—imaginaries, infrastructure, and water-land entanglement in desert agriculture in Israel

AbstractUnderstanding the meaning of land–water entanglement is increasingly important today, in an age of climate change and desertification. Despite the close ties between water and land, literature largely focuses on each of them separately or ignores the attempts to disconnect them. This paper examines the connections and disconnections between water and land in the southern desert of Israel in the shadow of political use and environmental disaster. Drawing on ethnographic research, the paper explores the challenges and successes of intensive agriculture in arid regions, and how water allocation plays a crucial role in making the desert bloom. Weaving between the theoretical framework of 'agricultural infrastructure' and 'water-land imaginations', the paper separates between the different imaginations that enable the various dimensions of the water-land entanglement, the efforts made to expand the connection or disconnect them, and between their political, environmental and cultural realization as infrastructures. Overall, this paper provides insights into the ways by which Imaginations, infrastructures and land–water entanglement shape human-environmental interactions in arid regions and agriculture projects in the Anthropocene era.

Pupils’ reflections on experiences and feelings in meditation in nature: an intercultural ecopedagogical praxis in outdoor education

Educational praxis incorporating intercultural wisdom, transdisciplinary cooperation, and nature-culture dialogues can arguably contribute to the UN’s education for sustainable development (ESD) and ameliorate current social-ecological challenges. This article elucidates how 14 Norwegian pupils aged 11–13 reflect on their experiences and feelings in meditation in nature (MiN) – an intercultural ecopedagogical praxis grounded on two corresponding philosophical ecopedagogies: Daoism and Arne Naess’ ecosophy. The pupils participated in MiN as part of outdoor education in a local environment and provided reflections through semi-structured focus group interviews. By engaging in MiN and embracing the concept of active nonaction, the pupils’ reflections on experiences and feelings reveal meaningful human-nature interactions and aesthetic embodiments in/with nature. MiN is proposed as one ontological-epistemologically holistic, ecocentric, and aesthetic-affective ecopedagogical praxis that can potentially complement (post)critical and posthuman ecopedagogies and contribute to the reconfiguration of outdoor education and physical education for teaching and learning social-ecological, all-inclusive sustainable development.

Natural Agency and Community in Paul Harding’s Tinkers

ABSTRACT This article examines Paul Harding’s representation of natural agency in Tinkers as a response to Ralph Waldo Emerson’s transcendentalist perspective on nature, as articulated in his landmark essay “Nature.” It argues that Harding reimagines this essay from both human and natural perspectives to convey the theme of community. Harding presents Emersonian subjective experiences with nature from a nonhuman perspective, envisioning nature’s communication with humans in a natural language comprehensible to humans, and illustrating human-nature interconnectedness as part of a universal connection among all natural entities. Additionally, Harding describes the characters’ active pursuit of understanding natural mysteries and experiencing its beauty through their senses to form a bond with nature. This description illustrates human interconnectedness through a shared identity with nature, which is fostered in humanity’s collective relationship with the natural world, and in Emersonian practice of solitary communion with it. Natural agency is highlighted in the community-building amidst human-nature interactions as portrayed in the protagonists’ narrative, and through a nature narrative depicting a collective of both the human and the nonhuman. Through these narratives, Harding’s work challenges anthropocentric notions of collectivity, demonstrating fiction’s potential to engage with the nonhuman in the context of growing ecological crises.

The chronology of the human colonization of the Canary Islands

The human colonization of the Canary Islands represents the sole known expansion of Berber communities into the Atlantic Ocean and is an example of marine dispersal carried out by an African population. While this island colonization shows similarities to the populating of other islands across the world, several questions still need to be answered before this case can be included in wider debates regarding patterns of initial colonization and human settlement, human-environment interactions, and the emergence of island identities. Specifically, the chronology of the first human settlement of the Canary Islands remains disputed due to differing estimates of the timing of its first colonization. This absence of a consensus has resulted in divergent hypotheses regarding the motivations that led early settlers to migrate to the islands, e.g., ecological or demographic. Distinct motivations would imply differences in the strategies and dynamics of colonization; thus, identifying them is crucial to understanding how these populations developed in such environments. In response, the current study assembles a comprehensive dataset of the most reliable radiocarbon dates, which were used for building Bayesian models of colonization. The findings suggest that i) the Romans most likely discovered the islands around the 1st century BCE; ii) Berber groups from western North Africa first set foot on one of the islands closest to the African mainland sometime between the 1st and 3rd centuries CE; iii) Roman and Berber societies did not live simultaneously in the Canary Islands; and iv) the Berber people rapidly spread throughout the archipelago.