Global diversity of lizards in freshwater (Reptilia: Lacertilia)

Bauer, Aaron M.; Jackman, Todd R.

doi:10.1007/s10750-007-9115-0

Cited by 15 publications

(14 citation statements)

References 12 publications

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“…The semi‐aquatic strategy is well‐characterized by Uranoscodon superciliosus (with probability of 99.2%), an iguanian lizard also known as the diving lizard. It is a medium to large lizard from the Amazonian basin, inhabiting vegetated areas near aquatic habitats and feeding on invertebrates (Ávila‐Pires, ; Bauer & Jackman, ; Figure g).…”

Section: Resultsmentioning

confidence: 99%

The global biogeography of lizard functional groups

Vidan

Novosolov

Bauer

et al. 2019

Journal of Biogeography

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Aim Understanding the mechanisms determining species richness is a primary goal of biogeography. Richness patterns of sub‐groups within a taxon are usually assumed to be driven by similar processes. However, if richness of distinct ecological strategies respond differently to the same processes, inferences made for an entire taxon may be misleading. We deconstruct the global lizard assemblage into functional groups and examine the congruence among richness patterns between them. We further examine the species richness – functional richness relationship to elucidate the way functional diversity contributes to the overall species richness patterns. Location Global. Methods Using comprehensive biological trait databases we classified the global lizard assemblage into ecological strategies based on body size, diet, activity times and microhabitat preferences, using Archetypal Analysis. We then examined spatial gradients in the richness of each strategy at the one‐degree grid cell, biome, and realm scales. Results We found that lizards can best be characterized by seven “ecological strategies”: scansorial, terrestrial, nocturnal, herbivorous, fossorial, large, and semi‐aquatic. There are large differences among the global richness patterns of these strategies. While the major richness hotspot for lizards in general is in Australia, several strategies exhibit highest richness in the Amazon Basin. Importantly, the global maximum in lizard species richness is achieved at intermediate values of functional diversity and increasing functional diversity further result in a slow decline of species richness. Main conclusions The deconstruction of the global lizard assemblage along multiple ecological axes offers a new way to conceive lizard diversity patterns. It suggests that local lizard richness mostly increases when species belonging to particular ecological strategies become hyper‐diverse there, and not because more ecological types are present in the most species rich localities. Thus maximum richness and maximum ecological diversity do not overlap. These results shed light on the global richness pattern of lizards, and highlight previously unidentified spatial patterns in understudied functional groups.

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Section: Resultsmentioning

confidence: 99%

The global biogeography of lizard functional groups

Vidan

Novosolov

Bauer

et al. 2019

Journal of Biogeography

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“…, 2008 and http://fishbase.org), birds (Dehorter & Guillemain, 2008; Clements et al. , 2009), reptiles (Bauer & Jackman, 2008; Bour, 2008; Martin, 2008; Pauwels, Wallach & David, 2008) and mammals (Veron, Patterson & Reeves, 2008). We included genera or families known to be freshwater‐dominated (>50% species freshwater‐associated).…”

Section: Approachmentioning

confidence: 99%

The ecology and emergence of diseases in fresh waters

Johnson

Paull

2010

Freshwater Biology

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1. Freshwater ecosystems, including ponds, lakes, streams and rivers, represent an interaction nexus between environmental change and a wide variety of infectious diseases, including human malaria, salmonid whirling disease, amphibian chytridiomycosis, crayfish plague and many others. However, few studies have explicitly examined patterns of disease in fresh waters and how they are changing over time. 2. Freshwater environments can function as transmission foci for pathogens because of (i) the importance of fresh water for organism survival, (ii) the aquatic life histories of many vectors and intermediate hosts, (iii) the concentrated aggregations of species -both freshwater and terrestrial -in and around freshwater habitats and (iv) the highly altered condition of freshwater ecosystems, which can affect species interactions and disease pathology. 3. To determine whether water-related diseases in wildlife are increasing, we used generalised additive models to quantitatively assess trends in the scientific literature for major freshwater groups, including amphibians, molluscs, crayfishes, fishes, mammals, reptiles and birds. We further examined what types of pathogens were primarily responsible for observed patterns and whether recurrent groups or transmission modes could be identified. 4. After correcting for research effort and temporal autocorrelation, we find that reports of disease varied over time and across freshwater taxa, with significant increases in amphibians, fishes and crayfishes, a significant decrease in molluscs, and no significant change in freshwater reptiles, birds or mammals. The types and diversity of pathogens varied considerably among groups. Reports of infection in amphibians were dominated by helminths and a chytridiomycete, in crayfishes by viruses and fungi, in molluscs by digenetic trematodes, in birds, fishes and mammals by viruses, protists and helminths and in reptiles by helminths and bacteria. 5. These results provide some of the first quantitative evidence indicative of a long-term increase in disease-related research for freshwater taxa. Managing freshwater ecosystems to reduce or minimise human and wildlife disease risk -arguably one of the most significant ecosystem services -will require enhanced incorporation of ecological approaches alongside medical and veterinary tools.

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“…Estas especies se relacionan más a este tipo de ambientes en cuanto a forrajeo y desarrollo de sus historias naturales, de acuerdo con el ciclo dinámico que liga a muchas especies a los cambios espaciales de las ciénagas u otro tipo de cuerpos de agua (Paton 2005, Bauer & Jackman 2008, Bour 2008, Martin 2008, Pauwells et al 2008. El recurso léntico favorece el establecimiento de poblaciones permanentes que ocupan estos espacios; la mayoría actualmente en riesgo (Castaño-Mora 2002) y seguramente caracterizados por la pérdida de este tipo de hábitat.…”

Section: Diversidad Alfa Por Hábitatsunclassified

Diversidad alfa y beta de la comunidad de reptiles en el complejo cenagoso de Zapatosa, Colombia

Medina-Rangel¹

2010

RBT

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Alfa and beta diversity of reptilian assemblages in Zapatosa wetland complex, Colombia. Diversity is a property of community that can described, characterized, and understood according to the functioning of ecosystems. To study the richness and local abundance and species replacement between habitats around the Zapatosa's wetland complex (El Cesar Department), I carried out four field trips between November of 2006 and October of 2007. A total of 640 sampling hours/man analyzed five habitat types chasmophyte forest, dry forest, riparian forest, palm-grove and tree-lined savanna; with the exception of the palm-grove sampled at its 75%, the others were sampled up to their 80%. I found 847 reptiles that were distributed in 48 species. The group with the highest number of species was Colubridae with 14, followed by Gekkonidae with five. Five endemic species and eight with some conservation threat grade at a national level are reported. The riparian forest was the richest and most abundant habitat with 34 species and 196 individuals. For each habitat, Colubridae had the highest number of species, followed by the families Polychrotidae, Gekkonidae and Teiidae, in that order. The reptile species composition was not different between the tree-lined savanna and the chasmophyte forest, but differed among the tree-lined savanna and the riparian forest, palm-grove and dry forest habitats. The most important differences in the species composition among almost all the habitats were influenced by the species Anolis tropidogaster and Gonatodes albogularis, and the higher occurrence of Stenocercus erythrogaster in the chasmophyte forest. The species replacement had an average value of 50%; the biggest amounts of shared species were the lizards, while the snake Leptodeira septentrionalis was the only one present in all habitat types. The forest grows-among-rocks showed the biggest complementarity and number of unique species compared to the other habitats. The wetland complex provides two thirds of the reptile´s species reported until now for the Caribbean region, and more than 80% of those reported for the El Cesar department. This wetland complex seems to behave as a center for low land species concentration as it hosts a high proportion of species from those places. Rev. Biol. Trop. 59 (2): 935-968. Epub 2011 June 01.

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Global diversity of lizards in freshwater (Reptilia: Lacertilia)

Cited by 15 publications

References 12 publications

The global biogeography of lizard functional groups

The global biogeography of lizard functional groups

The ecology and emergence of diseases in fresh waters

Diversidad alfa y beta de la comunidad de reptiles en el complejo cenagoso de Zapatosa, Colombia

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