Michael Binford

Michael Binford
University of Florida | UF · Department of Geography

Ph.D.

About

97
Publications
29,989
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5,309
Citations
Additional affiliations
August 1997 - August 2016
University of Florida
Position
  • Professor

Publications

Publications (97)
Article
Livelihood diversification strategies in developing countries are influenced by access to financial credit, to markets and to forests. Understanding their interrelated impacts has important implications for development policy, for market access, credit provision, and forest conservation. Using a survey of 2,417 households in 64 villages in four Pro...
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Forests in the United States are managed by multiple public and private entities making harmonization of available data and subsequent mapping of management challenging. We mapped four important types of forest management, production, ecological, passive, and preservation, at 250-meter spatial resolution in the Southeastern (SEUS) and Pacific North...
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The implications of cumulative land-use decisions and shifting climate on forests, require us to integrate our understanding of ecosystems, markets, policy, and resource management into a social-ecological system. Humans play a central role in macrosystem dynamics, which complicates ecological theories that do not explicitly include human interacti...
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The landscape surrounding protected areas influences their ability to maintain ecosystem functions and achieve conservation goals. As anthropogenic intensifica-tion continues, it is important to monitor land-use and land-cover change in and around protected areas. We measure land-cover change surrounding protected areas in the Maputaland-Pondoland-...
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Increasing temperatures and wildfire incidence and decreasing precipitation and river runoff in southern Africa are predicted to have a variety of impacts on the ecology, structure, and function of semi-arid savannas, which provide innumerable livelihood resources for millions of people. This paper builds on previous research that documents change...
Article
A simple mass-balance model provides insights into the influence of catchment vegetation changes and climate variability on the hydrologic and stable oxygen isotope (δ18O) evolution of Lake Salpetén, in the Maya Lowlands of northern Guatemala. Model simulations for the last 4000 years incorporate pollen-inferred changes in vegetation cover and acco...
Article
Forests are experiencing simultaneous changes in climate, disturbance regimes, and management, all of which affect ecosystem function. Climate change is shifting ranges and altering forest productivity. Disturbance regimes are changing with the potential for novel interactions among disturbance types. In some areas, forest management practices are...
Article
'Elephants' someone called softly but with urgency. We all silently dropped to the ground so that our silhouettes didn't attract them and we watched as they crossed the horizon off in the distance. The moment they were out of sight, four of the team rushed back to our truck, shaking in fear. The rest of us calmly but quickly finished collecting our...
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Efforts to deduce the appropriate scales of ecosystem functions and how patterns change with scale have a long history in ecology and landscape ecology (Levin 1992, O'Neill et al. 1996). Ecosystem function models are critical to predicting ecosystem responses to global change, but are limited by the technical challenges of model–data synthesis. Acc...
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Elephants have a major influence on vegetation structure, composition and ecosystem processes, and are primary agents of habitat change in Africa. At moderate-to-high population densities, elephants can damage vegetation, especially when enclosed in protected areas. This study examines the effects of elephant browsing on woody trees in Majete Wildl...
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Understanding how intra-annual precipitation variability affects seasonal vegetation dynamics is critical for assessing the potential impacts of climate variability on vegetation structure and composition. This is important in semi-arid and arid ecosystems of southern Africa, where water is a limiting resource and timing of seasonal rainfall combin...
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At least half of the world's population resides in the coastal zone and the livelihoods of billions of people are affected either directly or indirectly by the production and sustainability of nearshore fisheries. Landscape change, specifically development of tree plantations, is accelerating worldwide as developing countries integrate into global...
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A prevalence study was conducted to survey tick larvae populations in Puerto Rico (PR), compare the number of infested sites with Rhipicephalus (Boophilus) microplus larvae between the wet and dry season, and assess the associations of ecologic factors on the presence of R. microplus larvae. Ninety-six sites were selected using a GIS-based sampling...
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Midlake sediment samples from 97 Florida lakes were analyzed for organic matter (LOI 550 °C), carbonate (LOI 550–990 °C), total C, N, and P, and pigment (SCDU665) content. We used simple correlation and multiple regression to examine relationships between concentrations of selected sediment constituents, or their ratios, and trophic state (Carlson'...
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Diversity, as a key component of complex adaptive systems (CASs), provides the range of responses that determine how the system can adapt and change. We test how land-use land-cover (LULC) diversity, as a generalization for cross-site comparison of social-ecological systems (SESs), responds spatially to elevation, distance to roads, and distance to...
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Landscapes surrounding protected areas, while still containing considerable biodiversity, have rapidly growing human populations and associated agricultural development in most of the developing world that tend to isolate them, potentially reducing their conservation value. Using field studies and multi-temporal Landsat imagery, we examine a forest...
Chapter
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Tropical forests are among the world’s most productive ecosystems, providing important social and environmental benefits. However, they are increasingly threatened by accelerating rates of forest conversion and degradation (Brown and Lugo 1990). The Food and Agriculture Organization estimated that 13 million ha of forest are converted annually to a...
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Landscapes surrounding protected areas, while still containing considerable biodiversity, have rapidly growing human populations and associated agricultural development in most of the developing world that tend to isolate them, potentially reducing their conservation value. Using field studies and multi-temporal Landsat imagery, we examine a forest...
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Remote sensing, in combination with multivariate geostatistical methods, has the potential to improve the prediction of soil properties at landscape scales. In the Everglades region, and particularly in Water Conservation Area 2A (WCA-2A), phosphorus enrichment has drawn a lot of attention and has led to an extensive documentation of different aspe...
Article
The Angkor basin of Cambodia, the site of the great Angkor temple complex, has experienced explosive tourism growth since the 1993 onset of national political stability and renewed international investment, which in turn has driven increasing demand for water, wood, and biomass fuel, and rapid and extensive land-use and land-cover change. We use mu...
Book
Any alteration of the natural processes occurring on a piece of land will have expected as well as unanticipated effects, and those effects have little regard for arbitrary human boundaries. Consequently, it is not enough for land managers to consider only how they might maintain the parcels for which they are responsible; they must also anticipate...
Chapter
The 1996 study of the Marine Corps Base (MCB) Camp Pendleton3 region used a version of the spatially explicit CASC2D4 model implemented in the GIS software GRASS 4.1 as the r.hydro.casc2d module, to simulate a 25-year flood event on the rivers flowing through or adjacent to the installation. This event is statistically expected to occur once in any...
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We all use models—simplified representations of things, processes, and systems—in ways that range from helping us make decisions ranging from day-to-day personal tasks (going to a grocery store requires a mental model of one's current location, the location of the store, and the route between the two) to enhancing scientific understanding of the mo...
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Most social scientists in recent years have written about parks very differently from biologists and other promoters of Protected Area conservation. Especially when dealing with Africa and other developing regions, social scientists have generally portrayed parks as areas of restriction and exclusion imposed on a disempowered poor rural population...
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Large-eddy simulation is used to study secondary circulations in the convective boundary layer modulated as a result of horizontally varying surface properties and surface heat fluxes over flat terrain. The presence of heat flux heterogeneity and its alignment with respect to geostrophic wind influences the formation, strength and orientation of or...
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The modification of the flow structure arising from the removal of large patches of trees in a managed forest plantation near Gainesville, Florida is described. Using wavelet analysis of turbulence measurements taken above a forest canopy hundreds of meters downwind from the forest gap and well outside the footprint, the present paper examines chan...
Article
1] Understanding regional carbon budgets is a leading issue in carbon cycling research, but issues of measurement difficulty, scale, boundaries, and logistics compromise estimates at areas larger than stands or research plots. We studied four 15 Â 15 km sample areas to examine land management and wildfire effects on carbon storage dynamics in the f...
Article
Anthropogenic, ecological, and land-surface processes interact in landscapes at multiple spatial and temporal scales to create characteristic patterns. The relationships between temporally and spatially varying processes and patterns are poorly understood because of the lack of spatiotemporal observations of real landscapes over significant stretch...
Article
While landscape planning can help society meet its goals, the ultimate success of today's decisions will be determined, in part, by factors that are difficult to control or to forecast. This study explored how uncertainties related to urban growth in the biologically rich, but rapidly developing area between Los Angeles and San Diego might influenc...
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The daytime net ecosystem exchange of CO2 (NEE) was measured in an even-aged slash pine plantation in northern Florida from 1999 to 2001 using the eddy covariance technique. In August 2000, two clear-cuts were formed approximately 1 km west of the study site. A statistical approach was used to determine whether the clear-cuts induced changes in CO2...
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Pollen, charcoal, magnetic susceptibility, and bulk density data provide the first paleoecological record spanning the last 33,000 years from the western cordillera of the Peruvian Andes. Sparse super-puna vegetation existed before 30,000 cal yr B.P. around Lake Compuerta (3950 m elevation), prior to a sedimentary hiatus that lasted until c. 16,200...
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Deliberate progress towards the goal of long-term sustainability depends on understanding the dynamics of linked social and ecological systems. The concept of social-ecological resilience holds promise for interdisciplinary syntheses. Resilience is a multifaceted concept that as yet has not been directly operationalized, particularly in systems for...
Article
Leaf Area Index (LAI) is an important biophysical characteristic of vegetation that is directly related to rates of atmospheric gas exchange, biomass partitioning, and productivity. Mapping and monitoring LAI over scales from landscapes to regions is essential for understanding medium-scale biophysical properties and how these properties affect bio...
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Environmental variability is an important risk factor in rural agricultural communities. Testing models requires empirical sampling that generates data that are representative in both economic and ecological domains. Detrended correspondence analysis of satellite remote sensing data were used to design an effective low-cost sampling protocol for a...
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We evaluated the potential for remote sensing to detect a relationship between wave action factors and plant re-estab-lishment after a habitat enhancement at Lake Kissimmee, Florida. Using Geographic Information Systems (GIS) and remote sensing, wave action factors were found to be inverse-ly related to the probability of plant re-establishment. Th...
Article
The ontogeny of the lacustrine ecosystem, displayed historically as a lens of information-rich sediments of mixed composition, normally includes a transient sigmoid increase in the rate of accumulation of organic sediment. Interpretation of concentrations of microfossils and chemical composition in lake sediments requires a knowledge of bulk sedime...
Chapter
Holocene climate changes in the circum-Caribbean, and Andean Altiplano are inferred by using paleolimnological methods. Paleoenvironmental data provides a climatic context in which the Maya, and Tiwanaku cultures arose, persisted, and collapsed prior to European contact. In the circum-Caribbean, the arid late Pleistocene period was followed by a re...
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The ability to map and monitor terrestrial carbon is important in tropical regions where land conversion is intense and tropical moist forests store much of Earth's terrestrial carbon. The release of terrestrial carbon in the form of carbon dioxide could alter local, regional, and global weather, and enhance the greenhouse effect. This study analyz...
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We are grateful for the opportunity to respondto Erickson's (1999) critique of our articles onhuman-environment interactions in the LakeTiticaca basin of Bolivia (Ortloff & Kolata 1993;Abbott et al. 1997; Binford et al. 1997). Hisdecision to publish this critique in ANTIQUITY,rather than in the journals in which our articlesappeared, permits us to...
Article
The C:N ratios of lake sediments may reflect proportions of terrestrial and algal carbon contributing to accumulation of sediment. This possibility was tested in Lake Pleasant, Massachussetts, USA which underwent watershed deforestation in about 1780 A.D. The C:N profile of a 70-cm sediment core clearly reflected deforestation through a rise in C:N...
Article
Pleistocene and Holocene vegetation dynamics in the American tropics are inferred largely from pollen in continental lake sediments. Maritime influences may have moderated climate and vegetation changes on Caribbean islands. Stable isotope (δ18O) study of a 7.6-m core from Lake Miragoane, Haiti, provided a high-resolution record of changing evapora...
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Raised-field agricultural systems were exploited extensively by pre-Columbian Andean civilizations and now are used less extensively by contemporary Bolivian and Peruvian farmers as a method for farming the perennially wet soils of the intermontane pampas of the Andean high altiplano. The raised-field agricultural systems are linear or semi-linear...
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Paleolimnological and archaeological records that span 3500 years from Lake Titicaca and the surrounding Bolivian–Peruvian altiplano demonstrate that the emergence of agriculture (ca. 1500 B.C.) and the collapse of the Tiwanaku civilization (ca. A.D. 1100) coincided with periods of abrupt, profound climate change. The timing and magnitude of climat...
Article
Sediment cores collected from the southern basin of Lake Titicaca (Bolivia/Peru) on a transect from 4.6 m above overflow level to 15.1 m below overflow level are used to identify a new century-scale chronology of Holocene lake-level variations. The results indicate that lithologic and geochemical analyses on a transect of cores can be used to ident...
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RAISED-FIELD agriculture was widespread throughout Central and South America in prehispanic times1,2. In this system of agriculture, crops are cultivated on a series of raised beds, which are separated from one another by deep, water-filled channels. In some regions, rehabilitation of the raised fields is now underway, largely because this practice...
Article
We are studying present conditions and consequences of material movement from land to water in the Lake Titicaca basin, and how fluxes are affected by human activities. The principal objective of this research is to describe and explain the variability in the Andean Altiplano of (a) water, nutrient and sediment fluxes from land and (b) composition,...
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Paleolimnological methods can be used to identify baseline limnological conditions and to assess anthropogenic changes in lakes that lack historical limnological data. We studied a suite of Florida lakes and developed regression models that predict limnetic total P and Chi a from diatom assemblages and nutrient accumulation rates in surface sedimen...
Article
This paper reports results and analysis of210Pb-activity measurements in 51 lake-sediment cores from 32 lakes in the four PIRLA (Paleoecological Investigations of Recent Lake Acidification) project regions (Adirondack Mountains [New York], Northern New England, Northern Florida, and the Northern Great Lakes States). General application of the Const...
Article
Sediment cores from 30 low-alkalinity lakes in northern New England (NE), New York (NY), the northern Great Lakes States (NGLS) of Minnesota, Michigan, and Wisconsin, and Florida (FL) have been dated by 210Pb and analyzed for water and organic content, eight major elements (Al, Ti, Fe, Mn, Ca, Mg, Na, K) plus four trace metals (Pb, Zn, Cu, and V)....
Chapter
At an altitude of 3809 metres above sea level, Lake Titicaca, the northern lake basin on the Altiplano (a high endorheic plateau in Peru and Bolivia) is the largest navigable water body in the world lying at over 3000 metres.
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SEDIMENT cores from low-latitude lakes provide some of the best records of tropical climate change since the late Pleistocene. Here we report a high-resolution reconstruction of Caribbean climate based on O-18/O-16 ratios in ostracod shells from Lake Miragoane, Haiti. Our results show that the climate was dry and the lake level low during the latte...
Article
Qilu Hu is a large (A = 36.9 km2), shallow (zmax = 6.8 m) lake that lies at an elevation of 1797 m above msl on the Yunnan Plateau, southern China. Lake waters are hard (Mg = 3.2m eq L–1, Ca = 1.3 meq L–1 ), fresh (conductivity = 380 S cm –1), and productive (Secchi < 40="" cm).="" an="" 11-m="" sediment="" core="" has="" a="" basal="">14C age of 3...
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Paleoecological analysis of the sediment record of 12 Adirondack lakes reveals that the 8 clearwater lakes with current pH -1 have acidified recently. The onset of this acidification occurred between 1920 and 1970. Loss of alkalinity, based on quanitative analysis of diatom assemblages, ranged from 2 to 35 µeq l-1. The acidification trends are subs...
Article
Paleoecological analyses of sediments from nine northern Great Lakes states (NGLS) lakes reveal small pH changes in seven of these lakes since 1860, four of these being declines. The largest diatom-inferred (DI) pH declines of 0.5 pH units were found in Brown L. and Denton L., Wisconsin. Two other lakes with suspected total alkalinity declines (bas...