Sky Jacobs

Sky Jacobs
Wild Sonora

About

10
Publications
2,542
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22
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Introduction
My interests include biogeography, geography, and ecology of the greater southwest - the Sonoran Desert, Madrean Sky Islands, Apache Highlands, and Sierra Madre regions.

Publications

Publications (10)
Article
Full-text available
Spatial variation in resources is a fundamental driver of habitat quality but the realized value of resources at any point in space may depend on the effects of conspecifics and stochastic factors, such as weather, which vary through time. We evaluated the relative and combined effects of habitat resources, weather, and conspecifics on habitat qual...
Article
Full-text available
We assessed the status and richness of birds in a remote region of northwest Mexico and provided the first description of a bird community in foothills thornscrub vegetation across the full annual cycle of seasons. Our efforts were part of a broad program to describe biodiversity and conservation value of the Northern Jaguar Reserve. This large pri...
Article
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The captions for Figs Figs22 and and33 are incorrectly switched. The caption for Fig 3 should be the caption for Fig 2, and the caption for Fig 3 should be the caption for Fig 2. Please see the corrected captions here. Fig 2 Effect of habitat factors on reproductive output of ferruginous pygmy-owls in northwest Mexico, 2001–2010. Fig 3 Interact...
Article
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Thirty-eight plant taxa are reported for Sonora, Mexico, for the first time. Specimens, observations, and images are deposited in herbaria and are available in the SEINet and MABA online databases.
Article
Full-text available
Observations of the Sierra Madrean oak Quercus viminea in ten Sky Island mountain ranges 15 to 85 km south of the Arizona and New Mexico border in Sonora and Chihuahua help define the northern and western limits of its distribution. We also discovered it in the Patagonia Mountains of southern Arizona as far north as 15.3 km from Sonora. It is sympa...
Article
Full-text available
The Sierra Bacadéhuachi in east-central Sonora is the westernmost mountain range in the Sierra Madre Occidental (SMO), located east of Bacadéhuachi, Municipio de Bacadéhuachi, 34 km east of the Chihuahua border, and 165 km south of the Arizona border. The vegetation ranges from lowland foothills thornscrub up through desert grassland to oak woodlan...
Conference Paper
Full-text available
In September 2011, we initiated a 2-year “camera trap” mammal survey in the Greater Oak Flat Watershed near Superior, Arizona. Our survey area covers a total of 6,475 ha. The area surveyed is primarily a mixing zone of upper Sonoran Desert and interior chaparral, with influences from the Madrean vegetation community. Elevations range from 1150 to 1...
Article
Full-text available
The goal in traveling to the Sierra El Tigre -one of the most extensive of the sky islands -was to complete a basic bio-geographical assessment of the area, listing species of flora and fauna present in the Sierra El Tigre and especially "Fracción Número III Sierra El Tigre" property of Francisco Tarazón, located within the limits of the Ajos-Bavis...

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