Biological response to climate change on a tropical mountain

Pounds, J. Alan; Fogden, Michael P. L.; Campbell, John H.

doi:10.1038/19297

Cited by 1,194 publications

(1,081 citation statements)

References 25 publications

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“…In the tropics, plethodontid salamanders reach highest diversity in high‐elevation cloud forests (Wake, Papenfuss, & Lynch, 1992; Wake & Vredenburg, 2008), and clouds affect distribution patterns for species in these communities (Wake et al., 1992). Clouds may provide moisture during critical dry periods, and changes in CBH may be one cause of population declines in tropical cloud forest communities (Pounds, Fogden, & Campbell, 1999; Rovito, Parra‐olea, Vásquez‐Almazán, Papenfuss, & Wake, 2009). We find that in the high‐elevation temperate forests of the Blue Ridge Mountains, the presence of clouds in high‐elevation pockets of talus habitat likewise creates distinct climatic refugia.…”

Section: Discussionmentioning

confidence: 99%

Evidence that climate sets the lower elevation range limit in a high‐elevation endemic salamander

Grant¹,

Brand²,

Wekker

et al. 2018

Ecology and Evolution

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A frequent assumption in ecology is that biotic interactions are more important than abiotic factors in determining lower elevational range limits (i.e., the “warm edge” of a species distribution). However, for species with narrow environmental tolerances, theory suggests the presence of a strong environmental gradient can lead to persistence, even in the presence of competition. The relative importance of biotic and abiotic factors is rarely considered together, although understanding when one exerts a dominant influence on controlling range limits may be crucial to predicting extinction risk under future climate conditions. We sampled multiple transects spanning the elevational range limit of Plethodon shenandoah and site and climate covariates were recorded. A two‐species conditional occupancy model, accommodating heterogeneity in detection probability, was used to relate variation in occupancy with environmental and habitat conditions. Regional climate data were combined with datalogger observations to estimate the cloud base heights and to project future climate change impacts on cloud elevations across the survey area. By simultaneously accounting for species’ interactions and habitat variables, we find that elevation, not competition, is strongly correlated with the lower elevation range boundary, which had been presumed to be restricted mainly as a result of competitive interactions with a congener. Because the lower elevational range limit is sensitive to climate variables, projected climate change across its high‐elevation habitats will directly affect the species’ distribution. Testing assumptions of factors that set species range limits should use models which accommodate detection biases.

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Section: Discussionmentioning

confidence: 99%

Evidence that climate sets the lower elevation range limit in a high‐elevation endemic salamander

Grant¹,

Brand²,

Wekker

et al. 2018

Ecology and Evolution

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“…Other diseases implicated in recent decimation of amphibian populations include Aeromonas hydrophila, the bacterium responsible for red leg disease (Cunningham et al, 1996) and iridoviruses (Bollinger et al, 1999). Additional stressors include introduced predators or competitors (Corn, 2000), increased temperatures and other deleterious aspects of climate change (Pounds et al, 1999), and increased exposure to UV-B, which has been suggested to reduce reproductive success and survival of amphibians at high altitudes (Blaustein et al, 1994).…”

Section: Malformation and Declining Amphibian Populationsmentioning

confidence: 99%

Prevalence of Skeletal and Eye Malformations in Frogs From North-Central United States: Estimations Based on Collections From Randomly Selected Sites

Schoff

Johnson

Schotthoefer

et al. 2003

Journal of Wildlife Diseases

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Skeletal malformation rates for several frog species were determined in a set of randomly selected wetlands in the north-central USA over three consecutive years. In 1998, 62 sites yielded 389 metamorphic frogs, nine (2.3%) of which had skeletal or eye malformations. A subset of the original sites was surveyed in the following 2 yr. In 1999, 1,085 metamorphic frogs were collected from 36 sites and 17 (1.6%) had skeletal or eye malformations, while in 2000, examination of 1,131 metamorphs yielded 16 (1.4%) with skeletal or eye malformations. Hindlimb malformations predominated in all three years, but other abnormalities, involving forelimb, eye, and pelvis were also found. Northern leopard frogs (Rana pipiens) constituted the majority of collected metamorphs as well as most of the malformed specimens. However, malformations were also noted in mink frogs (R. septentrionalis), wood frogs (R. sylvatica), and gray tree frogs (Hyla spp.). The malformed specimens were found in clustered sites in all three years but the cluster locations were not the same in any year. The malformation rates reported here are higher than the 0.3% rate determined for metamorphic frogs collected from similar sites in Minnesota in the 1960s, and thus, appear to represent an elevation of an earlier baseline malformation rate.

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“…Por outro lado, casos de extinção e declínio populacional de diferentes espécies de anuros foram notados em diferentes continentes (Pechmann & Wilbur 1994, Stebbins & Cohen 1995, Halliday 1998Pounds et al 1999). Na Mata Atlântica, embora tenham sido registrados declínio e desaparecimento de espécies antes abundantes (Heyer et al 1988, Bertoluci & Heyer 1995, Eterovick et al 2005, é extremamente difícil julgar o grau de ameaça às espécies, principalmente frente ao desconhecimento sobre a distribuição, uso de hábitat e biologia das fases larval e adulta das espécies (Young et al 2001).…”

Section: Introductionunclassified

Diversidade e uso de hábitat por anfíbios anuros em duas localidades de Mata Atlântica, no norte do estado da Bahia

Juncá

2006

Biota Neotrop.

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The composition and abundance of anurofauna, as well as its distribution among reproductive sites in two localities of Atlantic forest in northern Bahia state were studied. Serra da Jibóia (SJ) is a mountain range with maximum elevation of 800 m, located in a transitional area between Atlantic forest and Caatinga. Reserva Sapiranga (RS) is a fragment of forest with 200 m of elevation and located close to the coast. In both localities, we searched for frogs in the following habitats: leaf litter/ understory, bromeliads, temporary ponds, permanent ponds and streams. Nocturnal collections were carried out through 10 months of 2001, totalizing 14 nights for RS and 12 nights for SJ. A total of 45 species were found, from which only seven were common to both localities. In SJ, more species were associated with the leaf litter/understory (n = 14) than the other reproductive sites, including two of the three more abundant species (Frostius penambucensis and Eleutherodactylus ramagii). In RS, temporary ponds were the reproductive sites that had greater species number (n = 18), also including the two of the most abundant species (Leptodactylus natalensis and Scinax sp. ruber group). These differences could be related to differences in elevation, vegetation and leaf litter conditions of Serra da Jibóia and Reserva Sapiranga. In this study, we extend the geographic distribution of A composição e abundância da anurofauna, bem como a distribuição das espécies em locais de reprodução, foram determinados em duas localidades na Mata Atlântica, norte do estado da Bahia. A Serra da Jibóia (SJ) é um maciço montanhoso com altitude máxima de 800 m, localizada em uma área de transição entre Caatinga e Mata Atlântica. A Reserva Sapiranga (RS) é um fragmento de mata a 200 m de altitude e localizado próximo ao litoral. Nas duas localidades, os seguintes hábitats foram amostrados: folhedo/sub-bosque, bromélias terrícolas, poças temporárias, poças permanentes e riachos. Ao longo de 10 meses de 2001, foram realizadas coletas noturnas, totalizando 14 noites de amostragem na Reserva Sapiranga (RS) e 12 na Serra da Jibóia (SJ). Um total 45 espécies foram registradas, sendo que apenas sete foram comuns às duas localidades. Na SJ, mais espécies (n = 14) estiveram associadas ao folhedo/sub-bosque do que aos outros sítios reprodutivos, incluindo Frostius pernambusencis e Eleutherodactylus ramagii, duas das três espécies mais abundantes nessa localidade. Na RS, as poças temporárias foram os hábitats que apresentaram maior número de espécies (n = 18), incluindo também as duas mais abundantes (Leptodactylus natalensis e Scinax sp. grupo ruber) nessa localidade. Estas diferenças podem ser atribuídas as diferenças de altitude, vegetação e condições do folhedo nas duas localidades.

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Biological response to climate change on a tropical mountain

Cited by 1,194 publications

References 25 publications

Evidence that climate sets the lower elevation range limit in a high‐elevation endemic salamander

Evidence that climate sets the lower elevation range limit in a high‐elevation endemic salamander

Prevalence of Skeletal and Eye Malformations in Frogs From North-Central United States: Estimations Based on Collections From Randomly Selected Sites

Diversidade e uso de hábitat por anfíbios anuros em duas localidades de Mata Atlântica, no norte do estado da Bahia

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