Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.cbpa.2017.03.012 |
Associations of water balance and thermal sensitivity of toads with macroclimatic characteristics of geographical distribution | |
Titon, Braz, Jr.; Gomes, Fernando Ribeiro | |
通讯作者 | Titon, Braz, Jr. |
来源期刊 | COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
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ISSN | 1095-6433 |
EISSN | 1531-4332 |
出版年 | 2017 |
卷号 | 208页码:54-60 |
英文摘要 | Interspecific variation in patterns of geographical distribution of phylogenetically related species of amphibians might be related to physiological adaptation to different climatic conditions. In this way, a comparative study of resistance to evaporative water loss, rehydration rates and sensitivity of locomotor performance to variations on hydration level and temperature was performed for five species of Bufonidae toads (Rhinella granulosa, R. jimi, R. ornata, R. schneideri and R. icterica) inhabiting different Brazilian biomes. The hypotheses tested were that, when compared to species inhabiting mesic environments, species living at hot and dry areas would show: (1) greater resistance to evaporative water loss, (2) higher rates of water uptake, (3) lower sensitivity of locomotor performance to dehydration and (4) lower sensitivity of locomotor performance at higher temperatures and higher sensitivity of locomotor performance at lower temperatures. This comparative analysis showed relations between body mass and interspecific variation in rehydration rates and resistance to evaporative water loss in opposite directions. These results might represent a functional compensation associated with relatively lower absorption areas in larger toads and higher evaporative areas in smaller ones. Moreover, species from the semi-arid Caatinga showed locomotor performance less sensitive to dehydration but highly affected by lower temperatures, as well greater resistance to evaporative water loss, when compared to the other species from the mesic Atlantic Forest and the savannah-like area called Cerrado. These results suggest adaptation patterns to environmental conditions. |
英文关键词 | Rhinella Resistance to evaporative water loss Locomotor performance Rehydration rates Temperature Occurrence points |
类型 | Article |
语种 | 英语 |
国家 | Brazil |
收录类别 | SCI-E |
WOS记录号 | WOS:000401877100006 |
WOS关键词 | PUERTO-RICAN FROGS ; LOCOMOTOR PERFORMANCE ; CUTANEOUS RESISTANCE ; BUFO-MARINUS ; AMPHIBIANS ; DEHYDRATION ; ABSORPTION ; SKIN ; ELEUTHERODACTYLUS ; ENVIRONMENTS |
WOS类目 | Biochemistry & Molecular Biology ; Physiology ; Zoology |
WOS研究方向 | Biochemistry & Molecular Biology ; Physiology ; Zoology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/198171 |
作者单位 | Univ Sao Paulo, Inst Biociencias, Dept Fisiol, Rua Matao,Trav 14,101,Lab 300, BR-05508090 Sao Paulo, Brazil |
推荐引用方式 GB/T 7714 | Titon, Braz, Jr.,Gomes, Fernando Ribeiro. Associations of water balance and thermal sensitivity of toads with macroclimatic characteristics of geographical distribution[J],2017,208:54-60. |
APA | Titon, Braz, Jr.,&Gomes, Fernando Ribeiro.(2017).Associations of water balance and thermal sensitivity of toads with macroclimatic characteristics of geographical distribution.COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY,208,54-60. |
MLA | Titon, Braz, Jr.,et al."Associations of water balance and thermal sensitivity of toads with macroclimatic characteristics of geographical distribution".COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY 208(2017):54-60. |
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