Angeler, David
- Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
Sammanfattning
This study quantifies the disruption of zooplankton population fluctuations in relation to two magnitudes of fire retardant contamination events using artificial ponds as model systems. Population time series were analysed using redundancy analysis where time was modelled with a principal coordinate of neighborhood matrices approach that identified relevant scales of fluctuation frequencies. Analyses of temporal coherence provided insight whether population fluctuations correlated with system intrinsic or extrinsic forces. Responses to stress were species-specific and context-dependant. Contamination changed temporal structure in some species. These alterations were associated with an increased intrinsic control of dynamics. In some cases the magnitude of impact was unrelated to contamination severity. Some populations were less tolerant of pollution in the low relative to the high concentration treatment. Results suggest that population-level monitoring of degraded sites may be suboptimal because disparate population responses complicate the selection of specific sentinel organisms to monitor stress. (C) 2009 Elsevier Ltd. All rights reserved.
Nyckelord
Monitoring; Fire retardants; Temporary waters; Time series; Disturbance ecology
Publicerad i
Environmental Pollution
2009, volym: 157, nummer: 11, sidor: 3174-3182
Utgivare: ELSEVIER SCI LTD
SLU författare
Globala målen (SDG)
SDG6 Rent vatten och sanitet för alla
UKÄ forskningsämne
Fisk- och akvakulturforskning
Publikationens identifierare
- DOI: https://doi.org/10.1016/j.envpol.2009.05.023
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/49341