{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,25]],"date-time":"2026-01-25T04:26:37Z","timestamp":1769315197747,"version":"3.49.0"},"reference-count":33,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2012,12,18]],"date-time":"2012-12-18T00:00:00Z","timestamp":1355788800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Most plant species are non-randomly distributed across environmental gradients in light, water, and nutrients. In tropical forests, these gradients result from biophysical processes related to the structure of the canopy and terrain, but how does species richness in tropical forests vary over such gradients, and can remote sensing capture this variation? Using airborne lidar, we tested the extent to which variation in tree species richness is statistically explained by lidar-measured structural variation in canopy height and terrain in the extensively studied, stem-mapped 50-ha plot on Barro Colorado Island (BCI), Panama. We detected differences in species richness associated with variation in canopy height and topography across spatial scales ranging from 0.01-ha to 1.0-ha. However, species richness was most strongly associated with structural variation at the 1.0-ha scale. We developed a predictive generalized least squares model of species richness at the 1.0-ha scale (R2 = 0.479, RMSE = 8.3 species) using the mean and standard deviation of canopy height, mean elevation, and terrain curvature. The model demonstrates that lidar-derived measures of forest and terrain structure can capture a significant fraction of observed variation in tree species richness in tropical forests on local-scales.<\/jats:p>","DOI":"10.3390\/rs4124010","type":"journal-article","created":{"date-parts":[[2012,12,18]],"date-time":"2012-12-18T11:10:39Z","timestamp":1355829039000},"page":"4010-4021","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":41,"title":["Plant Species Richness is Associated with Canopy Height and Topography in a Neotropical Forest"],"prefix":"10.3390","volume":"4","author":[{"given":"Jeffrey","family":"Wolf","sequence":"first","affiliation":[{"name":"Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA"}]},{"given":"Geoffrey","family":"Fricker","sequence":"additional","affiliation":[{"name":"Department of Geography, University of California, Los Angeles, Los Angeles, CA 90095, USA"}]},{"given":"Victoria","family":"Meyer","sequence":"additional","affiliation":[{"name":"Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA"}]},{"given":"Stephen","family":"Hubbell","sequence":"additional","affiliation":[{"name":"Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA"},{"name":"Center for Tropical Forest Science, Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Republic of Panama"}]},{"given":"Thomas","family":"Gillespie","sequence":"additional","affiliation":[{"name":"Department of Geography, University of California, Los Angeles, Los Angeles, CA 90095, USA"}]},{"given":"Sassan","family":"Saatchi","sequence":"additional","affiliation":[{"name":"Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA"}]}],"member":"1968","published-online":{"date-parts":[[2012,12,18]]},"reference":[{"key":"ref_1","unstructured":"Crawley, M., Gray, A., and Edwards, P.J. (1987). Colonization, Succession and Stability, Blackwell."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"947","DOI":"10.1111\/j.1365-2745.2001.00615.x","article-title":"Habitat associations of trees and shrubs in a 50-ha neotropical forest plot","volume":"89","author":"Harms","year":"2001","journal-title":"J. Ecol"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"864","DOI":"10.1073\/pnas.0604666104","article-title":"Soil nutrients influence spatial distributions of tropical tree species","volume":"104","author":"John","year":"2007","journal-title":"Proc. Natl. Acad. Sci. USA"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"80","DOI":"10.1038\/nature05747","article-title":"Drought sensitivity shapes species distribution patterns in tropical forests","volume":"447","author":"Engelbrecht","year":"2007","journal-title":"Nature"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"2755","DOI":"10.1890\/08-1482.1","article-title":"Seasonal and spatial variation in water availability drive habitat associations in a tropical forest","volume":"90","author":"Comita","year":"2009","journal-title":"Ecology"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1147","DOI":"10.1007\/s00442-011-2165-z","article-title":"A universal airborne LiDAR approach for tropical forest carbon mapping","volume":"168","author":"Asner","year":"2012","journal-title":"Oecologia"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1093\/jof\/98.6.44","article-title":"Lidar remote sensing for forestry","volume":"98","author":"Dubayah","year":"2000","journal-title":"J. Forest"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"393","DOI":"10.1046\/j.1466-822x.2002.00303.x","article-title":"Lidar remote sensing of above-ground biomass in three biomes","volume":"11","author":"Lefsky","year":"2002","journal-title":"Global Ecol. Biogeogr"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"554","DOI":"10.1126\/science.283.5401.554","article-title":"Light-gap disturbances, recruitment limitation, and tree diversity in a neotropical forest","volume":"283","author":"Hubbell","year":"1999","journal-title":"Science"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Condit, R (1998). Tropical Forest Census Plots, Springer-Verlag and R. G. Landes Company.","DOI":"10.1007\/978-3-662-03664-8"},{"key":"ref_11","unstructured":"Carson, W.P., and Schnitzer, S.A. (2008). Tropical Forest Community Ecology, Blackwell Publishing."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1174","DOI":"10.1111\/j.1365-2745.2012.01989.x","article-title":"Resource-based habitat associations in a neotropical liana community","volume":"100","author":"Dalling","year":"2012","journal-title":"J. Ecol"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"913","DOI":"10.1890\/0012-9658(2001)082[0913:TGATMO]2.0.CO;2","article-title":"Treefall gaps and the maintenance of species diversity in a tropical forest","volume":"82","author":"Schnitzer","year":"2001","journal-title":"Ecology"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1017\/S0266467400002674","article-title":"Water potential gradients for gaps and slopes in a panamanian tropical moist forests dry season","volume":"4","author":"Becker","year":"1988","journal-title":"J. Trop. Ecol"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1023\/A:1014289930621","article-title":"Topographic position affects the water regime in a semideciduous tropical forest in Panama","volume":"238","author":"Daws","year":"2002","journal-title":"Plant Soil"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"1","DOI":"10.2307\/2399464","article-title":"Changes in plant community diversity and floristic composition on environmental and geographical gradients","volume":"75","author":"Gentry","year":"1988","journal-title":"Ann. Missouri Bot. Garden"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"553","DOI":"10.2307\/3237007","article-title":"Floristic composition across a climatic gradient in a neotropical lowland forest","volume":"12","author":"Pyke","year":"2001","journal-title":"J. Veg. Sci"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"377","DOI":"10.1007\/s13143-011-0023-x","article-title":"On the observational determination of climate sensitivity and its implications","volume":"47","author":"Lindzen","year":"2011","journal-title":"Asia Pacific J. Atmos. Sci"},{"key":"ref_19","unstructured":"Croat, T.B. (1978). Flora of Barro Colorado Island, Stanford University Press."},{"key":"ref_20","unstructured":"Baillae, I., Elsenbeer, H., Barthold, F., Grimm, R., and Stallard, R Semi-detailed soil survey of Barro Colorado Island, Panama. Available online: http:\/\/biogeodb.stri.si.edu\/bioinformatics\/bci_soil_map\/ (accessed on 6 January 2012)."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1002\/hyp.3360050103","article-title":"Digital terrain modelling: A review of hydrological, geomorphological, and biological applications","volume":"5","author":"Moore","year":"1991","journal-title":"Hydrol. Process"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"115","DOI":"10.2307\/2347973","article-title":"An extension of Shapiro and Wilk\u2019s W test for normality to large samples","volume":"31","author":"Royston","year":"1982","journal-title":"Appl. Statist"},{"key":"ref_23","unstructured":"Cressie, N (1991). Statistics for Spatial Data, Wiley."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"246","DOI":"10.1111\/j.1461-0248.2009.01422.x","article-title":"Regression analysis of spatial data","volume":"13","author":"Beale","year":"2010","journal-title":"Ecol. Lett"},{"key":"ref_25","unstructured":"Pinheiro, J., and Bates, D (2009). Mixed-Effects Models in S and S-PLUS, Springer."},{"key":"ref_26","unstructured":"Pinheiro, J., Bates, D., DebRoy, S., Sarkar, D., and R Development Core Team (nlme: Linear and Non-linear Mixed Effects Models, 2012). nlme: Linear and Non-linear Mixed Effects Models, R package version 3.1\u2013103."},{"key":"ref_27","unstructured":"R: A language and environment for statistical computing. Available online: http:\/\/www.R-project.org (accessed on 1 March 2012)."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"716","DOI":"10.1109\/TAC.1974.1100705","article-title":"A new look at the statistical model identification","volume":"19","author":"Akaike","year":"1974","journal-title":"IEEE Trans. Automatic Control"},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Baltagi, B.H. (2011). Econometrics, Springer. [5th ed.].","DOI":"10.1007\/978-3-642-20059-5"},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Draper, N.R., and Smith, H (1998). Applied Regression Analysis, Wiley. [3rd ed.].","DOI":"10.1002\/9781118625590"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"40","DOI":"10.1214\/09-SS054","article-title":"A survey of cross-validation procedures for model selection","volume":"4","author":"Arlot","year":"2010","journal-title":"Statistics Surveys"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"549","DOI":"10.2307\/2261477","article-title":"Species-area and species-individual relationships for tropical trees: A comparison of three 50-ha plots","volume":"84","author":"Condit","year":"1996","journal-title":"J. Ecol"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"4519","DOI":"10.1073\/pnas.0710811105","article-title":"Invasive plants transform the three-dimensional structure of rain forests","volume":"105","author":"Asner","year":"2008","journal-title":"Proc. Natl. Acad. Sci. USA"}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/4\/12\/4010\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T21:54:20Z","timestamp":1760219660000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/4\/12\/4010"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,12,18]]},"references-count":33,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2012,12]]}},"alternative-id":["rs4124010"],"URL":"https:\/\/doi.org\/10.3390\/rs4124010","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,12,18]]}}}