Species richness, hotspots, and the scale dependence of range maps in ecology and conservation

By Allen H. Hurlbert, Walter Jetz. Proceedings of the National Academy of Sciences of the United States of America, 2007

709 citations recorded by the source corpus.

Subfields: Ecological Modeling, Ecology, Ecology, Evolution, Behavior and Systematics

View Paper: https://www.semanticscholar.org/paper/d94087da9979f2f26b026ce92bb7e684ac91d607

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Citations in the corpus

On the brink of extinction? How climate change may affect global chelonian species richness and distribution (2012, background): “Higher spatial resolution is preferable, as low spatial resolutions produce an overestimation of species richness (Hurlbert & Jetz, 2007) due to artificially assumed co-occurrence of species in larger areas.”
Accounting for uncertainty when mapping species distributions: The need for maps of ignorance (2011, background): “However, they are known to have limited value at finer scales (Hawkins et al., 2008; Hortal, 2008;Hurlbert and Jetz, 2007; Lawes and Piper, 1998), overestimating the area of occupancy of individual species (see, for example, Figure 2 and Table 1 at Hurlbert and Jetz, 2007) and species richness…”
The global distribution of frugivory in birds (2009, background): “During the Cretaceous and early Tertiary the Australian continent was warm and wet, but at the end of the Miocene it experienced increasing aridity and major decreases in precipitation.”
Priority areas for the conservation of Atlantic forest large mammals (2009, background): “…global biodiversity priority whether this is defined in terms of species richness or the occurrence of endemic and/or threatened species (Myers et al., 2000; Brooks et al., 2002, 2006 Orme et al., 2005; Brooks et al., 2006; Ceballos and Ehrlich, 2006; Gjerde et al., 2007; Hurlbert and Jetz, 2007).”
Global patterns of terrestrial vertebrate diversity and conservation (2013, background): “describe the general area where one can find a species but do not necessarily mean the species is present in all parts of the area (36).”
Why do birds migrate? A macroecological perspective (2015, background): “Given the coarseness of the species distribution data this is not always true, but it is a good approximation of occurrence given the spatial resolution of the hexagons (Hurlbert & Jetz, 2007).”
Large‐scale DNA‐based survey of frogs in Amazonia suggests a vast underestimation of species richness and endemism (2020, background): “…climate change (Foden et al., 2013), it would be necessary to reassess these modelling results based on more solid species occurrence data (Ficetola, Rondinini, Bonardi, Baisero, & Padoa-Schioppa, 2015; Herkt, Skidmore, & Fahr, 2017; Holt et al., 2013; Hurlbert & Jetz, 2007; Rocchini et al., 2011).”
Hotspots of species richness, threat and endemism for terrestrial vertebrates in SW Europe (2011, background): “…of limited help if the aim is to map finer-scale hotspots, evaluate conservation status of species and to derive effective conservation guidelines (Hurlbert and Jetz, 2007; Seo et al., 2009), especially in the highly heterogeneous Mediterranean region (Médail and Quézel,1999; Atauri and de Lucio,…”
Humidity levels drive reproductive modes and phylogenetic diversity of amphibians in the Brazilian Atlantic Forest (2012, background): “Many studies have shown the relative merits of map-based versus survey-based data (e.g. Hurlbert & White, 2005; Hurlbert & Jetz, 2007; Hawkins et al., 2008) in the identification of patterns of species richness and diversity hotspots.”
Cross-scale variation in species richness–environment associations (2011, background): “As expert range maps are prone to false presences when analysed at too fine a scale (Hurlbert & Jetz, 2007), we limited their use to 100 km diameters and coarser.”
Phylogenetic endemism in terrestrial mammals (2015, background): “Expert range maps for the world’s terrestrial mammal species (IUCN, 2010) were summarized to an equal-area grid (Behrman projection) of 110 km (equivalent to 1° at the equator), the finest appropriate grain for these types of data (Hurlbert & Jetz, 2007).”
Diversity, rarity and the evolution and conservation of the Canary Islands endemic flora (2008, methodology): “The grid scale used in an analysis can impact on the results (Hulbert & Jetz, 2007) and the crude granularity of 10 × 10 km grid squares used in the present analysis could be improved, given the knowledge of Canarian endemic taxon distributions.”
Global patterns of agricultural land‐use intensity and vertebrate diversity (2015, methodology): “While species distribution data scaled to a finer resolution than 110 9 110 km are available, a substantial mismatch of global-scale range-map distributions with species’ actual distributions occurs at finer scales, resulting in an overestimation of species occurrences (Hurlbert & Jetz, 2007).”