Differential impacts from an extreme cold spell on subtropical vs. tropical specialist bees in southern Florida

Downing, Jason; Borrero, Haydee; Liu, Hong

doi:10.1002/ecs2.1302

Cited by 14 publications

(10 citation statements)

References 34 publications

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“…). Similarly in Florida, the 2010 extreme cold spell caused greater population reduction in the Centris bee of tropical origin than that of the subtropical origin (Downing et al., in press ).…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, populations of two naturalized solitary bees in southern Florida, Centris nitida and Euglossa virridissima , both native to the tropical America (Downing and Liu , Downing et al., in press , Pemberton, personal communications ), and of invasive Burmese Pythons introduced from tropical Asia (Mazzotti et al., in press ). were reduced by the 2010 cold spell.…”

Section: Discussionmentioning

confidence: 99%

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Greater impacts from an extreme cold spell on tropical than temperate butterflies in southern China

et al. 2016

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The forecasted changes in global climate include not only shifts in average conditions, but also changes in the frequency and intensity of climatic extremes. One such climate extreme expected to change in the future are extreme cold spells. Although these disturbances may become less frequent, extreme cold spells are believed to persist in the foreseeable future and will likely have profound effects on species distributions, community organization, and ecosystem function. However, generalities about how ecosystems respond to these disturbances remain understudied. In 2008, an extreme once‐in‐50‐year cold spell affected sub‐tropical China, causing catastrophic damage to natural systems within the swath of the disturbance. In this study, we investigated the effects of this disturbance on a community of butterflies in the Nanling Mountain Preserve in southern China. Butterfly count surveys were conducted from 2006 to 2011. We predicted that the 2008 cold spell would have disproportionate effects on tropical butterfly species, increasing community dominance of more broadly tolerant temperate species. Over the course of the study, we counted 3403 butterflies from 249 species. Our results showed that the cold spell reduced abundances of temperate and tropical species by 50% and 88%, respectively. The disproportionate loss of tropical butterfly species changed butterfly community structure, resulting in a post cold spell community nearly completely dominated by temperate species. Butterfly communities remained dominated by temperate species for 2 years before the abundances of tropical species return to predisturbance conditions in 2011. As cold spells change in frequency and intensity in the future, we should expect their role in structuring sub‐tropical communities, in particular, the presence and dominance of tropical species to also change.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Greater impacts from an extreme cold spell on tropical than temperate butterflies in southern China

et al. 2016

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“…Small colonies are unable to incubate brood or maintain nest temperature, increasing the colony's chance of dying [6]. It has also been shown that extreme cold events negatively impact on the distribution and abundance of some bee species [7]. Thus, the colony temperature is affected both by meteorological phenomena and colony size [5,6,8].…”

Section: Introductionmentioning

confidence: 99%

Abscisic acid enhances cold tolerance in honeybee larvae

et al. 2017

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The natural composition of nutrients present in food is a key factor determining the immune function and stress responses in the honeybee (Apis mellifera). We previously demonstrated that a supplement of abscisic acid (ABA), a natural component of nectar, pollen, and honey, increases honeybee colony survival overwinter. Here we further explored the role of ABA in in vitro-reared larvae exposed to low temperatures. Four-day-old larvae (L4) exposed to 258C for 3 days showed lower survival rates and delayed development compared to individuals growing at a standard temperature (348C). Cold-stressed larvae maintained higher levels of ABA for longer than do larvae reared at 348C, suggesting a biological significance for ABA. Larvae fed with an ABA-supplemented diet completely prevent the low survival rate due to cold stress and accelerate adult emergence. ABA modulates the expression of genes involved in metabolic adjustments and stress responses: Hexamerin 70b, Insulin Receptor Substrate, Vitellogenin, and Heat Shock Proteins 70. AmLANCL2, the honeybee ABA receptor, is also regulated by cold stress and ABA. These results support a role for ABA increasing the tolerance of honeybee larvae to low temperatures through priming effects.

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“…In Florida, Boucek and Rehage (2014) and Rehage et al (2016) found that tropical native fishes were both more resistant and resilient to extreme cold compared to their functionally similar nonnative counter parts. Similarly, Downing et al (2016) found that non-native bees in subtropical Florida were less resistant to the 2010 cold spell than native bees. Many nonnative species are introduced to the subtropics from lower latitudes, because of their high ornamental value (Schofield and Loftus 2014).…”

Section: Effects Of Landscape Features On Subtropical Community Resismentioning

confidence: 93%

Investigating Sub-tropical Community Resistance and Resilience to Climate Disturbance

Boucek¹

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Differential impacts from an extreme cold spell on subtropical vs. tropical specialist bees in southern Florida

Abstract: Citation: Downing, J., H. Borrero, and H. Liu. 2016. Differential impacts from an extreme cold spell on subtropical vs. tropical specialist bees in southern Florida. Ecosphere 7(5)

Cited by 14 publications

References 34 publications

Greater impacts from an extreme cold spell on tropical than temperate butterflies in southern China

Greater impacts from an extreme cold spell on tropical than temperate butterflies in southern China

Abscisic acid enhances cold tolerance in honeybee larvae

Investigating Sub-tropical Community Resistance and Resilience to Climate Disturbance

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