Are mountain passes higher in the tropics? Janzen's hypothesis revisited.

By C. Ghalambor, R. Huey, Paul R. Martin, J. Tewksbury, George Wang. Integrative and Comparative Biology, 2006

785 citations recorded by the source corpus.

Subfields: Ecological Modeling, Ecology, Nature and Landscape Conservation

View Paper: https://www.semanticscholar.org/paper/84a656a85be078265b79063a620e7e8a41a8eff7

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Ecological Modeling

1. P. Fine
2. A. Townsend Peterson
3. Kenneth J. Feeley
4. Miguel B. Araújo
5. John J. Wiens
6. Walter Jetz
7. C. McCain
8. Wilfried Thuiller

In Ecology

1. P. Fine
2. Walter Jetz
3. C. McCain
4. Vanessa M. Kellermann
5. Belinda van Heerwaarden
6. Kenneth J. Feeley
7. John J. Wiens
8. Steven L. Chown

In Nature and Landscape Conservation

1. C. McCain
2. John‐Arvid Grytnes
3. Walter Jetz
4. P. Fine
5. A. Baselga
6. Miguel B. Araújo
7. Jens‐Christian Svenning
8. Wilfried Thuiller

Citations in the corpus

• Ecological and Evolutionary Drivers of Geographic Variation in Species Diversity (2015, positive): “Indeed, studies on both invertebrates and vertebrates have found wider thermal tolerances in temperate compared with tropical organisms (Ghalambor et al. 2006, Deutsch et al. 2008).”
• Evolution and the latitudinal diversity gradient: speciation, extinction and biogeography. (2007, result): “Ghalambor et al. (2006) found support for many aspects of Janzen's model, including increases in thermal tolerance ranges and acclimation capacities of species with increases in latitude.”
• Insect overwintering in a changing climate (2010, background): “…temperate zones, not only do tropical areas lack reliable seasonal cues that would allow phenotypic plasticity to evolve (Kingsolver and Huey, 1998; Ghalambor et al., 2006), for those species living close to their upper thermal limits under the prevailing climate, survival at higher temperatures…”
• Phenotypic variance, plasticity and heritability estimates of critical thermal limits depend on methodological context (2009, background): “In consequence, biologists have long been concerned with thermal limits to activity, the shape of thermal performance curves and the mechanisms underlying variation therein (Andrewartha & Birch 1 954; Cossins & Bowler 1 987; Huey & Kingsolver 1 993; Kingsolver & Huey 1998; Hochachka & Somero 2002; G”
• Biotic attrition from tropical forests correcting for truncated temperature niches (2010, background): “This could be the result of greater climatic specialization in the hot lowlands where climate is more temporally stable (Janzen, 1967; Ghalambor et al., 2006; Deutsch et al., 2008; McCain, 2009).”
• Predicting organismal vulnerability to climate warming: roles of behaviour, physiology and adaptation (2012, background): “These ectotherms may be additionally vulnerable because they have limited acclimatization capacities [72], low heat tolerance [68,78,184] and already live in environments that are warm relative to T o [6,47,68,123,185,186].”
• Can amphibians take the heat? Vulnerability to climate warming in subtropical and temperate larval amphibian communities (2012, background): “…al., 2009; Sunday et al., 2011) or maximum body temperature (Feder & Lynch, 1982) did not exhibit a latitudinal trend, probably because maximum yearly air temperatures do not vary much with latitude (Addo-Bediako et al., 2000; Ghalambor et al., 2006) but see Sunday et al. (2011) for marine species.”
• Bergmann's rule and the geography of mammal body size in the Western Hemisphere (2008, background): “Moreover, if reduced habitat areas lead to the prevalence of small body sizes in warm mountains, then the greater importance of topography for mean body size variation in the Neotropics might be associated with the greater habitat zonation and, hence, smaller habitats found in the Andes (Janzen, 196”
• More than just indicators: A review of tropical butterfly ecology and conservation (2010, background): “Also, Ghazoul (2004) found that the invasion of an understory herbaceous plant (Chromolaena odorata) into logged sites of tropical dry forest habitat in Thailand caused a shift in butterfly pollination activity away from the native canopy flowers to the understory.”
• What determines the climatic niche width of species? The role of spatial and temporal climatic variation in three vertebrate clades (2013, background): “…10.1111/geb.12001 422 © 2012 Blackwell Publishing Ltd http://wileyonlinelibrary.com/journal/geb et al., 2012), allopatric speciation (e.g. Ghalambor et al., 2006; Kozak & Wiens, 2006; Cadena et al., 2011) and large-scale patterns of biogeography and species richness (e.g. Wiens et al.,…”
• Climatic control of dispersal–ecological specialization trade‐offs: a metacommunity process at the heart of the latitudinal diversity gradient? (2010, background): “In a classic paper revisited in Ghalambor et al. (2006), Janzen (1967) presented a climatic–physiological model predicting that tropical mountain passes would be more effective barriers to organismal dispersal than would temperate-zone passes of equivalent altitude.”
• Impacts of climate warming on terrestrial ectotherms across latitude (2008, background): “Consistent with theoretical expectations (9, 10), seasonality is a strong predictor of warming tolerance (WT CTmax Thab; Table S1) and also of thermal safety margins (TSM Topt Thab; Table S1).”
• Global dung beetle response to tropical forest modification and fragmentation: A quantitative literature review and meta-analysis (2007, background): “Relative to higher-elevation dung beetle communities, lowland communities are more species rich, composed of species with smaller geographic distributions (Escobar et al., 2005) and potentially lower physiological tolerance to changes in microclimate (Janzen, 1967 and Ghalambor et al., 2006).”