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The oases of Baja California Peninsula: overlooked hotspots for wild bees

Por: Falcon Brindis, Armando [autor].
León Cortés, Jorge Leonel [autor].
Tipo de material: Artículo en línea Artículo en línea Tipo de contenido: Texto Tipo de medio: Computadora Tipo de portador: Recurso en líneaTema(s): Abejas silvestres | Oasis | Composición de la población | Hábitat (Ecología)Tema(s) en inglés: Wild bees | Oases | Population composition | Habitat (Ecology)Descriptor(es) geográficos: Baja California (Península) (México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Journal of Insect Conservation. Volume 27, (February 2023), páginas 117-128. --ISSN: 1572-9753Número de sistema: 62926Resumen:
Inglés

The Baja California peninsula (BCP), as part of the Californian biodiversity hotspot, contains complex and heterogeneous landscapes, arising from the interaction of local, historical, climatic and anthropogenic factors. The oases across BCP are contrasting habitats in the middle of arid conditions. These mesic environments are relictual habitats critical for the survival of many taxa. However, increasing human impacts and extreme climatic conditions are among the main threats to their conservation. Wild bees are among the less understood fauna inhabiting the oases in the BCP, thus the efects of both local and large-scale factors shaping the assemblages of these hymenopterans remain unknown. In this work, we aimed to study the communities of wild bees across diferent oases and their surrounding desert in the BCP. We recorded 151 species of wild bees from 48 genera and 6 families, with each location showing a unique assemblage of bees. <50% of the species were shared between oases and deserts, and 66% of the native bee species were considered rare. Both deserts and oases towards the central portion of the peninsula harbored the highest diversity levels. Relative efects of local, regional, and large-scale factors diferentially explained the diference in bee composition, richness and abundance among the study landscapes.

Recurso en línea: https://doi.org/10.1007/s10841-022-00432-0
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Disponible para usuarios de ECOSUR con su clave de acceso

The Baja California peninsula (BCP), as part of the Californian biodiversity hotspot, contains complex and heterogeneous landscapes, arising from the interaction of local, historical, climatic and anthropogenic factors. The oases across BCP are contrasting habitats in the middle of arid conditions. These mesic environments are relictual habitats critical for the survival of many taxa. However, increasing human impacts and extreme climatic conditions are among the main threats to their conservation. Wild bees are among the less understood fauna inhabiting the oases in the BCP, thus the efects of both local and large-scale factors shaping the assemblages of these hymenopterans remain unknown. In this work, we aimed to study the communities of wild bees across diferent oases and their surrounding desert in the BCP. We recorded 151 species of wild bees from 48 genera and 6 families, with each location showing a unique assemblage of bees. <50% of the species were shared between oases and deserts, and 66% of the native bee species were considered rare. Both deserts and oases towards the central portion of the peninsula harbored the highest diversity levels. Relative efects of local, regional, and large-scale factors diferentially explained the diference in bee composition, richness and abundance among the study landscapes. eng

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