Thomas Heatherly II

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Produções bibliográficas

• KOHLER, TYLER J. ; Heatherly, Thomas N. ; EL-SABAAWI, RANA W. ; ZANDONÀ, EUGENIA ; MARSHALL, MICHAEL C. ; FLECKER, ALEXANDER S. ; PRINGLE, CATHERINE M. ; REZNICK, DAVID N. ; THOMAS, STEVEN A. . Flow, nutrients, and light availability influence Neotropical epilithon biomass and stoichiometry. Freshwater Science , v. 31, p. 1019-1034, 2012.

• AUER, SONYA K. ; LOPEZ-SEPULCRE, ANDRÉS ; Heatherly, Thomas ; KOHLER, TYLER J. ; BASSAR, RONALD D. ; THOMAS, STEVEN A. ; REZNICK, DAVID N. . Life histories have a history: effects of past and present conditions on adult somatic growth rates in wild Trinidadian guppies. Journal of Animal Ecology (Print) , v. 81, p. 818-826, 2012.

• ROYER, TODD V. ; DAVID, MARK B. ; GENTRY, LOWELL E. ; MITCHELL, COREY A. ; STARKS, KAREN M. ; Heatherly, Thomas ; WHILES, MATT R. . Assessment of Chlorophyll- as a Criterion for Establishing Nutrient Standards in the Streams and Rivers of Illinois. JOURNAL OF ENVIRONMENTAL QUALITY , v. 37, p. 437, 2008.

• Heatherly, Thomas ; WHILES, MATT R. ; ROYER, TODD V. ; DAVID, MARK B. . Relationships between Water Quality, Habitat Quality, and Macroinvertebrate Assemblages in Illinois Streams. JOURNAL OF ENVIRONMENTAL QUALITY , v. 36, p. 1653, 2007.

• Heatherly, T. ; WHILES, M. R. ; GIBSON, D. J. ; COLLINS, S. L. ; HURYN, A. D. ; JACKSON, J. K. ; PALMER, M. A. . Stream insect occupancy-frequency patterns and metapopulation structure. Oecologia , v. 151, p. 313-321, 2007.

• Heatherly, Thomas ; WHILES, MATT R. ; KNUTH, DAVE ; GARVEY, JAMES E. . Diversity and Community Structure of Littoral Zone Macroinvertebrates in Southern Illinois Reclaimed Surface Mine Lakes. The American Midl and Naturalist , v. 154, p. 67-77, 2005.

• Heatherly II, T. ; THOMAS, S. A. ; FLECKER, ALEXANDER S. ; PRINGLE, CATHERINE M. ; EL-SABAAWI, RANA W. ; MARSHALL, MICHAEL C. ; REZNICK, DAVID N. . The influence of guppy introduction and light manipulation on Neotropical stream invertebrate assemblage structure. In: 60th annual meeting of the Society for Freshwater Science, 2012, Louisville, KY, EUA. 60th annual meeting of the Society for Freshwater Science, 2012.

• Heatherly II, T. ; BAZATA, D. ; SCHUMACHER, D. ; TRAYLOR, E. . Bioassessment of the wadeable streams and rivers of Nebraska using a posteriori classifications. In: Nebraska Chapter of the American Fisheries Society, 2012, Gretna, NE, EUA. Nebraska Chapter of the American Fisheries Society, 2012.

• Heatherly II, T. ; FLECKER, ALEXANDER S. ; PRINGLE, CATHERINE M. ; EL-SABAAWI, RANA W. ; MARSHALL, MICHAEL C. ; LOPEZ-SEPULCRE, ANDRÉS ; REZNICK, DAVID N. ; THOMAS, S. A. . Temporal dynamics of Neotropical stream invertebrates: quantifying the influence of frequent disturbance. In: 59th annual meeting of the North American Benthological Society, 2011, Providence, RI, EUA. 59th annual meeting of the North American Benthological Society, 2011.

• PASEKA, R. ; Heatherly II, T. ; THOMAS, S. A. . Shredder abundance and colonization rates in Trinidadian headwater streams. In: 59th annual meeting of the North American Benthological Society, 2011, Providence, RI, EUA. 59th annual meeting of the North American Benthological Society, 2011.

• Heatherly II, T. ; THOMAS, S. A. ; FLECKER, ALEXANDER S. ; PRINGLE, CATHERINE M. ; EL-SABAAWI, RANA W. ; MARSHALL, MICHAEL C. ; LOPEZ-SEPULCRE, ANDRÉS ; REZNICK, DAVID N. . Macroinvertebrate responses to fish introductions and light manipulation in Trinidad. In: 58th annual meeting of the North American Benthological Society, 2010, Santa Fe, NM, EUA. 58th annual meeting of the North American Benthological Society, 2010.

• EL-SABAAWI, RANA W. ; THOMAS, S. A. ; FLECKER, ALEXANDER S. ; DODDS, W. ; FRASER, D. ; GILLIAM, J. ; Heatherly II, T. ; LAMPHERE, B. ; MARSHALL, MICHAEL C. ; PRINGLE, CATHERINE M. . Quantifying ecological and evolutionary effects on trophic flows in Neotropical streams. In: 58th annual meeting of the North American Benthological Society, 2010, Santa Fe, NM, EUA. 58th annual meeting of the North American Benthological Society, 2010.

• OWENS, D. ; THOMAS, S. A. ; Heatherly II, T. ; FLECKER, ALEXANDER S. . Seasonal variation in terrestrial insect subsidies to tropical streams and implications for Rivulus diet. In: 58th annual meeting of the North American Benthological Society, 2010, Santa Fe, NM, EUA. 58th annual meeting of the North American Benthological Society, 2010.

• MARSHALL, MICHAEL C. ; EL-SABAAWI, RANA W. ; Heatherly, T.N. ; LOPEZ-SEPULCRE, ANDRÉS ; PRINGLE, CATHERINE M. ; THOMAS, S. A. ; FLECKER, ALEXANDER S. ; REZNICK, DAVID N. . Ecosystem process responses to guppy introduction and light manipulation in Trinidad streams.. In: 94th Annual Meeting of the Ecological Society of America, 2009, Albuquerque, NM, EUA. 94th Annual Meeting of the Ecological Society of America, 2009.

• Heatherly II, T. ; SANZONE, D. ; WILCOX, H. M. ; BENSTEAD, J. P. ; HURYN, A. D. ; PARKER, S. M. ; PETERSON, B. J. . Ammonium uptake and transformation in two Arctic streams with contrasting disturbance regimes using simultaneous N tracer additions. In: 55th annual meeting of the North American Benthological Society, 2007, Columbia, SC, EUA. 55th annual meeting of the North American Benthological Society, 2007.

• Heatherly II, T. ; WHILES, M. R. ; DAVID, MARK B. ; ROYER, TODD V. ; MITCHELL, COREY A. ; GENTRY, LOWELL E. . Relationships between water chemistry, habitat quality, and biological integrity in wadeable Illinois streams. In: 54th annual meeting of the North American Benthological Society, 2006, Anchorage, AK, EUA. 54th annual meeting of the North American Benthological Society, 2006.

• DELONG, M. K. ; Heatherly, T. ; WHILES, M. R. ; GIBSON, D. J. ; COLLINS, S. L. ; HURYN, A. D. ; JACKSON, J. K. ; PALMER, M. A. . Modeling of patch occupancy patterns in stream insect metacommunities: toward an understanding of factors influencing the distribution of stream insects. In: 91st Annual Meeting of the Ecological Society of America, 2006, Memphis, TN. 91st Annual Meeting of the Ecological Society of America, 2006.

• Heatherly, Thomas ; WHILES, M. R. ; GIBSON, D. J. ; COLLINS, S. L. ; HURYN, A. D. ; JACKSON, J. K. ; PALMER, M. A. . Stream insect distributional patterns and metapopulation models: effects of spatial scale and sampling intensity. In: 53rd annual meeting of the North American Benthological Society, 2005, New Orleans, LA, EUA. 53rd annual meeting of the North American Benthological Society, 2005.

• Heatherly, T. ; WHILES, M. R. ; GIBSON, D. J. ; COLLINS, S. L. ; HURYN, A. D. ; JACKSON, J. K. ; PALMER, M. A. . Metacommunity structure in regional assemblages of stream macroinvertebrates.. In: 89th Annual Meeting of the Ecological Society of America, 2004, Portland, OR, EUA. 89th Annual Meeting of the Ecological Society of America, 2004.

• Heatherly, T. ; WHILES, M. R. ; KNUTH, DAVE ; GARVEY, JAMES E. . Factors influencing littoral zone macroinvertebrate communities in reclaimed surface mine lakes in southern Illinois. In: 52nd annual meeting of the North American Benthological Society, 2004, Vancouver, BC, Canada. 52nd annual meeting of the North American Benthological Society, 2004.

• WHILES, M. R. ; GIBSON, D. J. ; COLLINS, S. L. ; Heatherly, T.N. ; HURYN, A. D. ; JACKSON, J. K. ; HALL, R. ; PALMER, M. A. . Application of the core-satellite metapopulation model to stream insect data sets: patterns in space and time. In: 52nd annual meeting of the North American Benthological Society, 2004, Vancouver, BC, Canada. 52nd annual meeting of the North American Benthological Society, 2004.

Projetos de pesquisa

• 2008 - Atual

  NSF-FIBR 'From genes to ecosystems: how do ecologiacl and evolutionary processes interact in nature?', Descrição: While ecological processes are known to drive adaptive evolution, the feedback from adaptive evolution to ecological processes has been explored only in theory and simple model systems. These explorations suggest a potentially profound importance for the feedback from evolution to ecological processes. Yet the importance of adaptive dynamics in natural systems remains to be elucidated; to do so requires a target organism that can display significant evolution in a manageable interval of time in a context where the ecological consequences can be measured. We will, for the first time, experimentally evaluate reciprocal feedbacks between evolution and ecosystem processes and hence evaluate such theory in a natural setting. We do so using a focal species, the guppy (Poecilia reticulata), in which rapid evolution of body size, life histories and other traits have already been documented. Prior results suggest that feedbacks between evolution and ecology are important in this system because some evolutionary changes we have observed are inconsistent with theory that does not include ecological interactions. We propose to transplant guppies from sites where they co-occur with a diversity of predators to streams from which they have been previously excluded by waterfalls and that contain a single predator, Rivulus hartii, then to evaluate ecological and co-evolutionary interactions that result. Rivulus preys on guppies, but guppies also prey on Rivulus and the two species compete. Our experimental setting benefits from additional barrier waterfalls that limit upstream dispersal of guppies, but do not exclude Rivulus, thus providing a built-in control. We also will manipulate light environments of a subset of experimental sites in order to alter basal resources and assess how ecological context influences evolutionary trajectories.. , Situação: Em andamento; Natureza: Pesquisa. , Integrantes: Thomas Heatherly II - Integrante / THOMAS, STEVEN A. - Integrante / REZNICK, DAVID N. - Coordenador / FLECKER, ALEXANDER S. - Integrante / PRINGLE, CATHERINE M. - Integrante / Doug Fraser - Integrante / Jim Gilliam - Integrante.

• 2004 - 2006

  The relationship between water quality and nutrients in illinois streams and rivers, Descrição: Develop nutrient water quality standards criteria for Illinois streams and Rivers. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Thomas Heatherly II - Integrante / ROYER, TODD V. - Integrante / DAVID, MARK B. - Coordenador / WHILES, M. R. - Integrante.

• 2004 - 2005

  Stream insect occupancy-frequency patterns and metapopulation structure, Descrição: An understanding of the distribution patterns of organisms and the underlying factors is a fundamental goal of ecology. One commonly applied approach to visualize these is the analysis of occupancy-frequency patterns. We used data sets describing stream insect distributions from different regions of North America to analyze occupancy-frequency patterns and assess the effects of spatial scale, sampling intensity, and taxonomic resolution on these patterns. Distributions were dominated by satellite taxa (those occurring in ≤10% of sites), whereas the occurrence of core taxa (occurring in ≥90% of sites) determined the overall modality of occupancy-frequency patterns. The proportions of satellite taxa increased with spatial scale and showed positive relationships with sampling intensity (r 2=0.74 0.96). Furthermore, analyses of data sets from New York (USA) showed that generic-level assessments underestimated the satellite class and occasionally shifted occupancy-frequency distributions from unimodal to bimodal. Our results indicate that, regardless of species- or generic-level taxonomy, stream insect communities are characterized by satellite species and that the proportion of satellite species increases with spatial scale and sampling intensity. Thus, niche-based models of occupancy-frequency patterns better characterize stream insect communities than metapopulation models such as the core-satellite species hypothesis.. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Thomas Heatherly II - Integrante / WHILES, M. R. - Integrante / COLLINS, S. L. - Coordenador.

• 2003 - 2004

  Determinations of the biotic health of the aquatic and terrestrial habitats of the Sparta, Illinois National Guard Training Facility, Descrição: I sampled fourteen reclaimed surface mine lakes within the Sparta Illinois National Guard training facility for benthic macroinvertebrates in spring of2003 as part of an overall environmental assessment of the property. The objectives of this research were: (1) to inventory the aquatic macroinvertebrates present; (2) to evaluate the current quality of the aquatic habitats so that the effects of subsequent management and development by the National Guard can be assessed; (3) examine which factors influence invertebrate community structure in these systems; and (4) observe the applicability ofseveral commonly used stream bioassessment metrics to Midwestern surface mine lakes. A dip net was swept over 2 or 3 two-meter transects of littoral zones of each lake, from which 300 macroinvertebrates were randomly removed following rapid bioassessment protocols. Macroinvertebrates were identified primarily to genus and a multimetric approach was used to examine community structure and tolerance. Oligochaetes were typically the most abundant taxon, followed by Hya/lela, Chironomidae, Physa, and Caenis. I used a principal components analysis and forward stepwise multiple regressions to examine the effects of several lake variables on diversity metrics. Simpson diversity was positively correlated (r' = 0.92, P ~ 0,0003) with lake area, percent rock and gravel substrate, Simazine concentration, bank slope, and transparency, Percent collector-gatherer and percent predator metrics were negatively correlated (RSq ~ 0,93), suggesting that each will only be abundant in the absence of the other and also that other functional groups were poorly represented in these systems or are represented by organisms other than macroinvertebrates, Additionally, percent predators were positively correlated (r' ~ 0.89, P ~ 0.0018) with chlorophyll a, alkalinity, and atrazine concentration while percent collector-gatherers were negatively correlated (r' = 0.83, P ~ 0.0055) to these s. , Situação: Concluído; Natureza: Pesquisa. , Integrantes: Thomas Heatherly II - Integrante / WHILES, MATT R. - Coordenador / GIBSON, D. J. - Integrante.

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