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35 results for “Arid lands”
FIGURE 14a–c in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 14a–c. Steatoda erigoniformis, (a) Dorsal view of the male, (b) Male palp, prolateral view, (c) Idem, ventral view.
FIGURE 9a–h in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 9a–h. Oecobius paulomaculatus, (a) Male palp, retrolateral view, (b) Idem, ventral view, (c) Idem, prolateral view, (d) Epigyne, (e) Vulva, ventral view (f) Idem, dorsal view.
FIGURE 8a–c in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 8a–c. Oecobius paulomaculatus, (a) Dorsal view of the male, (b) Dorsal view of the female, (c) Ventral view of the female.
FIGURE 6a–f in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 6a–f. Male of Zelotes tragicus, (a) Dorsal view, (b) Palp, ventral view, (c) Idem, retrolateral view, (d) Idem, tibial apophysis, (e) Idem, prolateral view, (f) Idem, dorsal view.
FIGURE 2a–c in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 2a–c. Some sampled biotopes across Ghardaïa, (a) Palm grove of Balouh, (b) Palm grove of Mansoura, (c) River of Kef Doukhane.
FIGURE 4a–h in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 4a–h. Leptopilos pupa, (a) Male palp, retrolateral view, (b) Idem, tibial apophysis, (c) Idem, ventral view, (e) Idem, ventral-prolateral view, (f) Idem, prolateral view, (g) Idem, dorsal view, Epigyne (g) and vulva (h).
FIGURE 3a–c in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 3a–c. Leptopilos pupa, (a) Dorsal view of the male, (b) Dorsal view of the female, (c) Ventral view of the female, (c).
Social-ecological cascade effects of land-use on vertebrate pest dynamics in arid agricultural communities
<p>Extensive land conversion to agriculture in drylands and associated resource use have wide-ranging impacts on desert ecosystems globally. Incorporating the impacts of human-social aspects is thus imperative in examining ecological interactions. The provision of agricultural inputs in these resource-scarce regions supports invasive and pest species, negatively impacting both agricultural productivity and native desert ecosystems. Understanding the spatial dynamics of invasive and pest species requires analyzing both bottom-up resource availability factors underlying animal distributions and top-down biological controls. Here, we evaluate the social-ecological cascading effects of dryland agriculture on vertebrate pest communities in dryland agricultural communities of Israel. Our study region is characterized by 18 agricultural cooperatives with distinct crop regimes due to contrasting social decision-making and resource allocation schemes (i.e., communal Kibbutzim vs. privatized Moshavim). Crop choices further affect land management (e.g., enclosed vs. open farm systems) and resource intensity. This system is ideal to study trophic mechanisms underlying animal assemblages between agricultural regimes. We examine the role of agricultural land-use practices on pest spatial distributions based on multi-year vertebrate pest observations with agricultural datasets. We use structural equation modelling (SEM) to quantify the relative importance of added agricultural resources underlying bottom-up and top-down trophic processes regulating vertebrate pest assemblages. Results reveal that crop choices determine pest distributions through bottom-up processes directly, while simultaneously driving pest competitive interactions through indirect top-down cascades impacting pest communities. For example, due to the indirect negative effect of wolves on meso-predators (foxes and jackals) mediated by livestock, the total positive effect of livestock on the abundance of meso-predators is reduced. Our study illustrates the social-ecological cascading effects of agricultural regimes on pest community assemblages mediated by contrasting agricultural land-use practices. Considering the expansion of dryland agro-ecological systems globally, understanding the intricate cascading pathways of predator- and prey-pest communities has important implications for agricultural management, biological invasions in drylands and fragile desert environments.</p>
Social-ecological cascade effects of land-use on vertebrate pest dynamics in arid agricultural communities
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Tradeoffs between leaf cooling and hydraulic safety in a dominant arid land riparian tree species
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Data from: Temporal invasion regime attributes influence community synchrony and stability in an arid land system
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FIGURE 15 in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 15. Evolution in numbers of discovered species and families of spiders in Ghardaïa province.
FIGURE 7a–c in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 7a–c. Female of Zelotes tragicus, (a) Dorsal view, (b) Ventral view, (C) Epigyne.
FIGURE 5a–c in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 5a–c. Female of Scotophaeus blackwalli, (a) Dorsal view, (b) Ventral view, (C) Epigyne.
FIGURE 1 in Spiders of arid lands: The Ghardaïa region (Northern Sahara) with seven new records for Algeria
FIGURE 1. Map of Ghardaïa province with different sampled localities.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.