Michael Kessler (Lima, es un botánico alemán. Ha trabajado extensamente en "Aráceas y Pteridofitas" de Bolivia. Es investigador del Instituto Albrecht-von-Haller fur Pflanzenwissenschaften, en sistemática vegetal, en Gotinga.
En 1986 es bachiller de la Alexander-von-Humboldt-Schule, de Lima. Luego en 1989, recibe su Ms.Sc. en Biología, de la Georg-August-University, de Gotinga. Y en 1995, su Ph.D. summa cum laude, eb Biología, en la misma Universidad.
Ha reconocido a decenas de nuevas especies, entre ellas a Asplenium mosetenense M.Kessler en Candollea 61(2): 309 2006); Polylepis neglecta M.Kessler en Candollea, 50(1): 140 (1995).IPNI Author Details
Algunas publicaciones Acebey, A; M Kessler; BL Maass. 2007. Potencial de aprovechamiento de Bromeliaceae y Araceae como recursos no maderables en el bosque montano húmedo del parque nacional Cotapata, Bolivia. Ecología en Bolivia 42: 4-22 Bach, K; M Kessler; SR Gradstein. 2007. A simulation approach to determine statistical significance of species turnover peaks in a species-rich tropical cloud forest. Diversity & Distributions 13: 863-870 Gradstein, SR; M Kessler; R Pitopang. 2007. Tree species diversity relative to human land uses in tropical rain forest margins in Central Sulawesi. pp. 321-334 en Tscharntke, T, C Leuschner, M Zeller, E Guhardja, A Bidin (eds) The stability of tropical rainforest margins, linking ecological, economic & social constraints of land use and conservation. Springer, Berlín Jácome, J, M Kessler, AR Smith. 2007. A human-induced skewed elevational frequency distribution of ferns in the Andes. Global Ecology & Biogeography 16: 313-318 Kessler, M, J Böhner, J Kluge. 2007. Modelling tree height to assess climatic conditions at tree lines in the Bolivian Andes. Ecological Modelling 207: 223-233 --------, M, Y Siorak, M Wunderlich, C Wegner. 2007. Patterns of morphological leaf traits among pteridophytes along humidity & temperature gradients in the Bolivian Andes. Functional Plant Biology 34: 963-971 --------, AR Smith. 2007. Ten new species & other nomenclatural changes for ferns from Bolivia. Brittonia 59: 186-197 --------, AR Smith, M Lehnert. 2007. Ten new species and two new combinations of Blechnum (Blechnaceae, Pteridophyta) from Bolivia. American Fern Journal 97: 66-80 Kluge, J, M Kessler. 2007. Morphological characteristics of fern assemblages along an elevational gradient: patterns & causes. Ecotropica 13: 27-44 Krömer, T, M Kessler, SR Gradstein. 2007. Vertical stratification of vascular epiphytes in submontane & montane forest of the Bolivian Andes: the importance of the understory. Plant Ecology 189: 261-278 Lozada, T, GHJ de Koning, M Kessler, A-M Klein, T Tscharntke. 2007. Geographical range size of tropical plants influences their response to anthropogenic activities. Diversity & Distributions Early Online: 1-10. doi: 10.1111/j.1472-4642.2007.00413.x Schmidt-Lebuhn, AN, M Kessler. 2007. Key2html: a tool for the quick conversion of dichotomous keys into HTML code. Taxon 56: 505-508 --------, --------, I Hensen. 2007. Hummingbirds as drivers of plant speciation? Trends in Plant Science 12: 329-331 --------, --------, P Seltmann. 2007. Consequences of wind pollination in an Andean Rosaceae: genetic structure & patterns of species distribution in Polylepis Ruiz & Pav. Plant Systematics & Evolution 266: 91-103 , M Schwerdtfeger, M Kessler, G Lohaus. 2007. Phylogenetic constraints vs. ecology in the nectar composition of Acanthaceae. Flora 202: 62-69 Soria A, RW Kessler, M Kessler. 2007. The influence of sampling intensity on the perception of the spatial distribution of tropical diversity & endemism: a case study of ferns from Bolivia. Diversity & Distributions Early Online 1-8. doi : 10.1111/j.1472-4642.2007.00433.x Steffan-Dewenter, I, M Kessler, J Barkmann, M Bos, D Buchori, S Erasmi, H Faust, G Gerold, K Glenk, SR Gradstein, E Guhardja, M Harteveld, D Hertel, P Höhn, M Kappas, S Köhler, C Leuschner, M Maertens, R Marggraf, S Migge-Kleian, J Mogea, R Pitopang, M Schaefer, S Schwarze, SG Sporn, A Steingrebe, SS Tjitrosoedirdjo, S Tjitrosoemito, A Twele, R Weber, L Woltmann, M Zeller, T Tscharntke. 2007. Tradeoffs between income, biodiversity, & ecosystem function during rainforest conversion & agroforestry intensification. Proc. National Academy of Sci. USA 104: 4973-4978 Acebey, A, M Kessler, BL Maass, T Krömer. 2006. Aráceas y bromeliáceas en bosques andinos de Bolivia. S. 434-448 en Moraes R, M, B Øllgaard, LP Kvist, F Borchsenius, H Balslev (eds) Botánica Económica de los Andes Centrales. Universidad Mayor de San Andrés, Plural Editores, La Paz Herzog, SK, M Kessler. 2006. Local vs. regional control of species richness: a new approach to test for competitive exclusion at the community level. Global Ecology & Biogeography 15: 163-172 Kessler, M. 2006. Bosques de Polylepis. S. 110-120 en Moraes R, M, B Øllgaard, LP Kvist, F Borchsenius, H Balslev (eds) Botánica Económica de los Andes Centrales. Universidad Mayor de San Andrés, Plural Editores, La Paz --------, L Betz, S. Roedde. 2006. Red List of the Pteridophytes of Bolivia. Pdf en --------, JT Mickel. 2006. Nineteen new species of Elaphoglossum (Dryopteridaceae, Pteridophyta) from Bolivia. Brittonia 58: 93-118 --------, AR Smith. 2006. Megalastrum (Dryopteridaceae – Pteridophyta) in Bolivia, with descriptions of six new species. American Fern Journal 96: 31-44 --------, AR Smith. 2006. Five new species of Asplenium (Aspleniaceae) from Bolivia. Candollea 61: 305-313 --------, AR Smith, M Lehnert. 2006. Four new species of Selaginella (Selaginellaceae – Pteridophyta) from Bolivia. Edinburgh Journal of Botany 63: 85-93 Kluge, J, M Kessler. 2006. Fern endemism & its correlates: contribution from an elevational transect in Costa Rica. Diversity & Distributions 12: 535-545 --------, --------, R Dunn. 2006. What drives elevational patterns of diversity? A test of geometric constraints, climate, & spp. pool effects for pteridophytes on an elevational gradient in Costa Rica. Global Ecology and Biogeography 15: 358-371 Krömer, T, M Kessler. 2006. Filmy ferns (Hymenophyllaceae) as high-canopy epiphytes. Ecotropica 12: 57-63 --------, --------, SK Herzog. 2006. Distribution and flowering ecology of bromeliads along two climatically contrasting elevational transects in the Bolivian Andes. Biotropica 38: 183-195 Schmidt-Lebuhn, AN, M Kessler, M Kumar. 2006. Promiscuity in the Andes: species relationships in Polylepis (Rosaceae, Sanguisorbeae) based on AFLP & morphology. Systematic Botany 31: 547-559 --------, M Kumar, M Kessler. 2006. An assessment of the genetic population structure of two species of Polylepis Ruiz & Pav. (Rosaceae) in the Chilean Andes. Flora 201: 317-325 Herzog, SK, M Kessler, K Bach. 2005. The elevational gradient in Andean bird species richness at the local scale: a foothill peak & a high-elevation plateau. Ecography 28: 209-222 Jácome, J, M Kessler. 2005. Effects of simulated climate change on biomass allocation patterns of seedlings of two Andean Lepidium species (Brassicaceae) with different elevational distibutions. Ecotropica 11: 73-77 Jørgensen, PM, MJ Macía, A Fuentes, SG Beck, M Kessler, N Paniagua, R Seidel, C Maldonado, A Araujo-Murakami, L Cayola, T Consiglio, TJ Killeen, WH Cabrera, F Bascopé, D de la Quintana, T Miranda, F Canqui, V Cardona-Peña. 2005. Lista anotada de las plantas vasculares registradas en la región de Madidi. Ecología en Bolivia 40: 70-169 Kessler, M, PJA Keßler, SR Gradstein, K Bach, M Schmull, R Pitopang. 2005. Tree diversity in primary forest & different land use systems in Central Sulawesi, Indonesia. Biodiversity and Conservation 14: 547-560 --------, AN Schmidt-Lebuhn. 2005. Taxonomical & distributional notes on Polylepis (Rosaceae). Organisms, Diversity & Evolution 6: 67-70 + electr. Suppl. 1-10 --------, AR Smith. 2005. Seven new species, 13 new combinations, & one new name of Polypodiaceae (Pteridophyta) from Bolivia. Candollea 60: 271-288 --------, --------, MA Sundue. 2005. Three new species of Hymenophyllum (Hymenophyllaceae) from Bolivia. Blumea 50: 555-559 --------, --------, --------, . 2005. Notes on the genus Polystichum (Dryopteridaceae, Pteridophyta) in Bolivia, with descriptions of ten new species. Brittonia 57: 205-227 Kluge, J, M Kessler. 2005. Inventory of pteridophytes along an elevational transect in Braulio Carrillo National Park, Biological Station La Selva & Cerro de la Muerte, Costa Rica. Brenesia 63-64: 11-34 Krömer, T, M Kessler, SR Gradstein, A Acebey. 2005. Diversity patterns of vascular epiphytes along an elevational gradient in the Andes. Journal of Biogeography 32: 1799-1810 Schmidt-Lebuhn, AN, M Kessler, J Müller. 2005. Evolutionary history of Suessenguthia (Acanthaceae) inferred from morphology, AFLP data & ITS rDNA sequences. Organisms, Diversity & Evolution 5: 1-13 Smith, AR, B León, H Tuomisto, H van der Werff, RC Moran, M Lehnert, M Kessler. 2005. New records of pteridophytes for the Flora of Peru. Sida 21: 2321-2341 Fjeldså, J, M Kessler. 2004. Conservando la diversidad biológica de bosques de Polylepis en los Andes de Bolivia. Una contribución al manejo sustentable en los Andes. Fundación Amigos de la Naturaleza. Santa Cruz, Bolivia. 214 pp. Kessler, M. 2004. Diversity & biogeography of Bolivian ferns at three spatial scales. pp. 167-179 en Breckle, S-W, B Schweizer & A Fangmeier (Eds) Results of worldwide ecological studies. Proceedings of the 2nd sympsoium of the A.F.W. Schimper-Foundation. Verlag G. Heimbach, Stuttgart --------. 2004. Die tropisch-alpine Stufe in Zentral- und Südamerika. S. 135-147 in Walter, H. & S.-W. Breckle (Eds) Ökologie der Erde. Band 2: Spezielle Ökologie der Tropen und Subtropen. Elsevier, Spektrum Akad. Verlag, München. --------. Bolivianische Andén. 2004. S. 456-463 in Burga, CA, F Klötzli & G Grabherr (Eds) Gebirge der Erde. Landschaft, Klima, Pflanzenwelt. Ulmer, Stuttgart --------. 2004. Pteridophytes. pp. 98-101 in Ibisch, P.L. & G. Merida (Eds) Biodiversity: the richness of Bolivia. State of knowledge and conservation. Fundación Amigos de la Naturaleza. Santa Cruz, Bolivia Purcell, J, A Brelsford & M Kessler. 2004. The World’s Highest Forest. American Scientist 92: 454-461 Wesche, K. & M Kessler. 2004. Die humide tropisch-alpine Stufe: weltweite Gemeinsamkeiten. S. 128-135 in Walter, H. & S.-W. Breckle (Eds) Ökologie der Erde. Band 2: Spezielle Ökologie der Tropen und Subtropen. Elsevier, Spektrum Akad. Verlag, München Hennessey, AB, SK Herzog, M Kessler & D Robinson. 2003. Avifauna of the Pilon Lajas Biosphere Reserve & Communal Lands, Bolivia. Bird Conservation International 13: 319-349 Kessler, M. 2003a. Biodiversitätsforschung am Beispiel der Pflanzenwelt der bolivianischen Andén. En Gradstein, SR, R Willmann & G Zizka (Eds) Biodiversitätsforschung: Die Entschlüsselung der Artenvielfalt in Raum und Zeit. Kleine Senckenberg Reihe 45: 127-136 --------. 2003b. Pteridófitas. S. 100-103 en Ibisch, PL & G Merida (Eds) Biodiversidad: la riqueza de Bolivia. Estado de conocimiento y conservación. Fundación Amigos de la Naturaleza. Santa Cruz, Bolivia Wegner, C, M Wunderlich, M Kessler & M Schawe. 2003. Foliar C/N ratio of ferns along an Andean elevational gradient. Biotropica 35: 486-490 Herzog, SK & M Kessler. 2002. Composition & biogeography of dry forest bird communities in Bolivia. Journal für Ornithologie 143: 171-204 --------, --------, TM Cahill. 2002. Evaluation of a new rapid assessment method for estimating avian diversity in tropical forests. The Auk 199: 749-769 --------. 2002a. The elevational gradient of Andean plant endemism: varying influences of taxon-specific traits & topography at different taxonomic levels. J.Biogeography 29: 1159-1166 --------. 2002b. Range size and its ecological correlates among the pteridophytes of Carrasco National Park, Bolivia. Global Ecology & Biogeography 11: 89-102