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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ortiz-Santaliestra, Manuel E. Fernández-Benéitez, María José Marco, Adolfo |
| Description | Country affiliation: Spain Author Affiliation: Ortiz-Santaliestra ME ( Instituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ronda de Toledo s/n, 13071 Ciudad Real, Spain. manuele.ortiz@uclm.es) |
| Abstract | Temporary ponds where many amphibians breed experience a gradual desiccation that leads to growing larval densities, which can reduce tadpole survival rates and increase cannibalistic interactions among carnivorous salamander larvae. Concentrations of many agrochemicals, including nitrogenous fertilizers, can also increase as the water volume decreases. We analyzed the effects of ammonium nitrate fertilizer at two larval densities on growth and survival of Rana dalmatina tadpoles, and on cannibalistic behaviors of Salamandra salamandra larvae. We observed synergistic lethal effects until day 17 of exposure, when ammonium nitrate-related mortality of tadpoles was five times greater at high than at low density. The fertilizer impaired tadpole growth. This effect was stronger at low density than at high density. In the absence of ammonium nitrate, the incidence of cannibalism was higher at high than at low larval density. However, fertilizer exposure removed this density-dependent effect, which, under field conditions, would negate some potentially advantageous effects of cannibalism such as reduced intraspecific competition and the stimulation of defensive behaviors. |
| File Format | HTM / HTML |
| ISSN | 0166445X |
| Volume Number | 110-111 |
| e-ISSN | 18791514 |
| Journal | Aquatic Toxicology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-04-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Toxicology Behavior, Animal Drug Effects Nitrates Toxicity Water Pollutants, Chemical Animals Cannibalism Dose-response Relationship, Drug Larva Physiology Administration & Dosage Analysis Ranidae Stress, Physiological Urodela Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Health, Toxicology and Mutagenesis Aquatic Science |
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