Search Results - "Colwell, Robert K."

Humboldt's enigma: What causes global patterns of mountain biodiversity? by Rahbek, Carsten, Borregaard, Michael K, Colwell, Robert K, Dalsgaard, Bo, Holt, Ben G, Morueta-Holme, Naia, Nogues-Bravo, David, Whittaker, Robert J, Fjeldså, Jon

“…Mountains contribute disproportionately to the terrestrial biodiversity of Earth, especially in the tropics, where they host hotspots of extraordinary and…”
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Hutchinson's duality: The once and future niche by Colwell, Robert K, Rangel, Thiago F

“…The duality between "niche" and "biotope" proposed by G. Evelyn Hutchinson provides a powerful way to conceptualize and analyze biogeographical distributions…”
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EstimateS turns 20: statistical estimation of species richness and shared species from samples, with non‐parametric extrapolation by Colwell, Robert K, Elsensohn, Johanna E

“…EstimateS offers statistical tools for analyzing and comparing the diversity and composition of species assemblages, based on sampling data. The latest version…”
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Thermal-safety margins and the necessity of thermoregulatory behavior across latitude and elevation by Sunday, Jennifer M., Bates, Amanda E., Kearney, Michael R., Colwell, Robert K., Dulvy, Nicholas K., Longino, John T., Huey, Raymond B.

“…Physiological thermal-tolerance limits of terrestrial ectotherms often exceed local air temperatures, implying a high degree of thermal safety (an excess of…”
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Building mountain biodiversity: Geological and evolutionary processes by Rahbek, Carsten, Borregaard, Michael K, Antonelli, Alexandre, Colwell, Robert K, Holt, Ben G, Nogues-Bravo, David, Rasmussen, Christian M Ø, Richardson, Katherine, Rosing, Minik T, Whittaker, Robert J, Fjeldså, Jon

“…Mountain regions are unusually biodiverse, with rich aggregations of small-ranged species that form centers of endemism. Mountains play an array of roles for…”
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Assessing the threat to montane biodiversity from discordant shifts in temperature and precipitation in a changing climate by McCain, Christy M., Colwell, Robert K.

“…Ecology Letters (2011) 14: 1236–1245 Mountains are centres of global biodiversity, endemism and threatened species. Elevational gradients present opportunities…”
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Modeling the ecology and evolution of biodiversity: Biogeographical cradles, museums, and graves by Rangel, Thiago F, Edwards, Neil R, Holden, Philip B, Diniz-Filho, José Alexandre F, Gosling, William D, Coelho, Marco Túlio P, Cassemiro, Fernanda A S, Rahbek, Carsten, Colwell, Robert K

“…Individual processes shaping geographical patterns of biodiversity are increasingly understood, but their complex interactions on broad spatial and temporal…”
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Process, Mechanism, and Modeling in Macroecology by Connolly, Sean R., Keith, Sally A., Colwell, Robert K., Rahbek, Carsten

“…Macroecology has traditionally relied on descriptive characterization of large-scale ecological patterns to offer narrative explanations for the origin and…”
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Monitoring recovery of tree diversity during tropical forest restoration: lessons from long-term trajectories of natural regeneration by Chazdon, Robin L, Norden, Natalia, Colwell, Robert K, Chao, Anne

“…Given the importance of species diversity as a tool for assessing recovery during forest regeneration and active restoration, robust approaches for assessing…”
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Quantifying sample completeness and comparing diversities among assemblages by Chao, Anne, Kubota, Yasuhiro, Zelený, David, Chiu, Chun‐Huo, Li, Ching‐Feng, Kusumoto, Buntarou, Yasuhara, Moriaki, Thorn, Simon, Wei, Chih‐Lin, Costello, Mark J., Colwell, Robert K.

“…We develop a novel class of measures to quantify sample completeness of a biological survey. The class of measures is parameterized by an order q ≥ 0 to…”
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Coextinction and Persistence of Dependent Species in a Changing World by Colwell, Robert K, Dunn, Robert R, Harris, Nyeema C

“…The extinction of a single species is rarely an isolated event. Instead, dependent parasites, commensals, and mutualist partners (affiliates) face the risk of…”
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Global Warming, Elevational Range Shifts, and Lowland Biotic Attrition in the Wet Tropics by Colwell, Robert K, Brehm, Gunnar, Cardelús, Catherine L, Gilman, Alex C, Longino, John T

“…Many studies suggest that global warming is driving species ranges poleward and toward higher elevations at temperate latitudes, but evidence for range shifts…”
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The sixth mass coextinction: are most endangered species parasites and mutualists? by Dunn, Robert R., Harris, Nyeema C., Colwell, Robert K., Koh, Lian Pin, Sodhi, Navjot S.

“…The effects of species declines and extinction on biotic interactions remain poorly understood. The loss of a species is expected to result in the loss of…”
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Sufficient Sampling for Asymptotic Minimum Species Richness Estimators by Chao, Anne, Colwell, Robert K., Lin, Chih-Wei, Gotelli, Nicholas J.

“…Biodiversity sampling is labor intensive, and a substantial fraction of a biota is often represented by species of very low abundance, which typically remain…”
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Explaining the species richness of birds along a subtropical elevational gradient in the Hengduan Mountains by Wu, Yongjie, Colwell, Robert K., Rahbek, Carsten, Zhang, Chunlan, Quan, Qing, Wang, Changke, Lei, Fumin

“…Aim To document the species richness pattern of birds in the Hengduan Mountains and to understand its causes. Location Hengduan Mountains, China. Methods…”
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Ecological and biogeographic null hypotheses for comparing rarefaction curves by Cayuela, Luis, Gotelli, Nicholas J, Colwell, Robert K

“…The statistical framework of rarefaction curves and asymptotic estimators allows for an effective standardization of biodiversity measures. However, most…”
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Turning Up the Heat on a Hotspot: DNA Barcodes Reveal 80% More Species of Geometrid Moths along an Andean Elevational Gradient by Brehm, Gunnar, Hebert, Paul D N, Colwell, Robert K, Adams, Marc-Oliver, Bodner, Florian, Friedemann, Katrin, Möckel, Lars, Fiedler, Konrad

“…We sampled 14,603 geometrid moths along a forested elevational gradient from 1020-3021 m in the southern Ecuadorian Andes, and then employed DNA barcoding to…”
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Quantifying temporal change in biodiversity: challenges and opportunities by Dornelas, Maria, Magurran, Anne E., Buckland, Stephen T., Chao, Anne, Chazdon, Robin L., Colwell, Robert K., Curtis, Tom, Gaston, Kevin J., Gotelli, Nicholas J., Kosnik, Matthew A., McGill, Brian, McCune, Jenny L., Morlon, Hélène, Mumby, Peter J., Øvreås, Lise, Studeny, Angelika, Vellend, Mark

“…Growing concern about biodiversity loss underscores the need to quantify and understand temporal change. Here, we review the opportunities presented by…”
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The role of environment and mid-domain effect on moth species richness along a tropical elevational gradient by Brehm, Gunnar, Colwell, Robert K., Kluge, Jürgen

“…Aim The biodiversity of geometrid moths (Lepidoptera) along a complete tropical elevational gradient was studied for the first time. The patterns are…”
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Process-explicit models reveal the structure and dynamics of biodiversity patterns by Pilowsky, July A, Colwell, Robert K, Rahbek, Carsten, Fordham, Damien A

“…With ever-growing data availability and computational power at our disposal, we now have the capacity to use process-explicit models more widely to reveal the…”
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