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Keyword: flora

Native aquatic vertebrates: Conservation and management in the Rio Sonoyta Basin, Sonora, Mexico

Publications Posted on: September 16, 2013
The Río Sonoyta in northern Sonora is an important aquatic ecosystem that is disappearing because of drought and groundwater withdrawal. Its native species are also threatened by introduced species. The only watered reach is an intermittent segment (

Gila topminnow interactions with western mosquitofish: An update

Publications Posted on: September 16, 2013
Western mosquitofish Gambusia affinis has major impacts on Gila topminnow Poeciliopsis occidentalis. Thirteen years have passed since information on negative impacts has been published. I will list and discuss additional examples where mosquitofish have impacted topminnow. In addition, it appears that long-term drought has a synergistic and negative effect on this relationship.

Habitat type and Permanence determine local aquatic invertebrate community structure in the Madrean Sky Islands

Publications Posted on: September 16, 2013
Aquatic environments in the Madrean Sky Islands (MSI) consist of a matrix of perennial and intermittent stream segments, seasonal ponds, and human-built cattle trough habitats that support a diverse suite of aquatic macroinvertebrates.

Inventory of terrestrial mammals in the Rincon Mountains using camera traps

Publications Posted on: September 16, 2013
The Sky Island region of the southwestern United States and northwestern Mexico is well-known for its diversity of mammals, including endemic species and species representing several different biogeographic provinces.

Black bear population and connectivity in the Sky Islands of Mexico and the United States

Publications Posted on: September 16, 2013
The Sky Island region is a mountainous region surrounded by grasslands, deserts and intermountain valleys, located between Mexico and the United States. However, different land management and human impact can have an effect on its wildlife populations. Currently, the border wall poses an immediate threat to the survival of black bears (Ursus americanus), considered an endangered species in Mexico.

Decade of wildlife tracking in the Sky Islands

Publications Posted on: September 16, 2013
In 2001 Sky Island Alliance developed a citizen science program that uses track and sign identification and count surveys to monitor potential wildlife corridors throughout southeastern Arizona and southwestern New Mexico. The goal of the Wildlife Linkages Program is to protect and advocate for an interconnected landscape where wildlife, based on their ecological needs, can move easily between core habitats, the Sky Island mountain ranges.

Preliminary list of flying mammals in the Ajos-Bavispe National Forest Reserve and Wildlife Refuge, Sonora

Publications Posted on: September 16, 2013
Information on bat communities, including their composition, abundance, distribution and ecology, can support management programs in protected areas, and also provide information and initiatives for the designation of new protected areas. In 2010 and 2011, monitoring was conducted in the Ajos Mountains, a sky island, that is part of the Ajos Bavispe Reserve.

Richness of mammals on the San Bernardino Ranch in the municipality of Agua Prieta, Sonora, Mexico

Publications Posted on: September 16, 2013
Historically, the San Bernardino Ranch has performed, as economical activities, livestock and farming, which has contributed to the deterioration of regional ecosystems. The ranch is ecologically important due to the diverse types of habitats of conservation interest such as the semi-desert grassland, the riparian vegetation, and a large ciénega, in which restoration efforts are being applied through water harvesting by gabions.

Biogeographic perspective of speciation among desert tortoises in the genus Gopherus: A preliminary evaluation

Publications Posted on: September 16, 2013
The enduring processes of time, climate, and adaptation have sculpted the distribution of organisms we observe in the Sonoran Desert. One such organism is Morafka’s desert tortoise, Gopherus morafkai. We apply a genomic approach to identify the evolutionary processes driving diversity in this species and present preliminary findings and emerging hypotheses.

Comparison of the tropical floras of the Sierra la Madera and the Sierra Madre Occidental, Sonora, Mexico

Publications Posted on: September 16, 2013
The floras of the tropical vegetation in the Sky Island Sierra la Madera (SMA) near Moctezuma in northeastern Sonora (30°00’N 109°18’W) and the Yécora (YEC) area in the Sierra Madre Occidental (SMO) in eastern Sonora (28°25’N 109°15”W) were compared. The areas are 175 km apart. Tropical vegetation includes foothills thornscrub (FTS) in both areas and tropical deciduous forest (TDF) in the Yécora area.

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