Michael T. Bogan

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Natural disturbance regimes--cycles of fire, flood, drought or other events--range from highly predictable (disturbances occur regularly in time or in concert with a proximate cue) to highly unpredictable. While theory predicts how populations should evolve under different degrees of disturbance predictability, there is little empirical evidence of how this(More)
In arid regions, spring-fed habitats are frequently the only year-round source of surface water and are essential habitats for aquatic organisms and primary water sources for terrestrial animals and human settlements. While these habitats have been relatively well-studied in some regions, those of the southern Sonoran Desert have received little attention.(More)
In dryland regions, increased demand for water has led to the reduction of natural aquatic habitats and threatens persisting aquatic habitats. In the Madrean Sky Islands (MSI), water demands have also resulted in the creation of novel aquatic habitats, including stock ponds. Stock ponds are important surrogate habitat for native species, yet little is known(More)
Temporal environmental fluctuations, such as seasonality, exert strong controls on biodiversity. While the effects of seasonality are well known, the predictability of fluctuations across years may influence seasonality in ways that are less well understood. The ability of a habitat to support unique, non-nested assemblages of species at different times of(More)
The substantially natural hydrograph of the upper Gila River supports the largest complement of native fi shes and some of the best remaining riparian habitat in the lower Colorado River Basin. Changes to the river's fl ows may signifi cantly degrade the aquatic and riparian ecosystem. The Arizona Water Settlements Act (AWSA) authorizes federal funds to(More)
Thesis title: " Biogeography and natural history of an endemic timberline pine " EMPLOYMENT 2016-present Assistant professor, Resistance and resilience of invertebrate communities to seasonal and supraseasonal drought in arid-land headwater streams. Dispersal ability and habitat requirements determine landscape-level genetic patterns in desert aquatic(More)
Large and severe wildfires can dramatically alter terrestrial and aquatic ecosystems. We documented changes in benthic macroinvertebrate communities and physical habitat at two sites along Angora Creek, CA, USA for 2 years following a severe fire. Although post-fire years had low precipitation, canopy cover and bank stability declined dramatically following(More)
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