| Autor: |
Dietmar Straile, Rita Adrian, Daniel E Schindler |
| Jazyk: |
angličtina |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
PLoS ONE, Vol 7, Iss 10, p e45497 (2012) |
| Druh dokumentu: |
article |
| ISSN: |
1932-6203 |
| DOI: |
10.1371/journal.pone.0045497 |
| Popis: |
Spring phenologies are advancing in many ecosystems associated with climate warming causing unpredictable changes in ecosystem functioning. Here we establish a phenological model for Daphnia, an aquatic keystone herbivore based on decadal data on water temperatures and the timing of Daphnia population maxima from Lake Constance, a large European lake. We tested this model with long-term time-series data from two lakes (Müggelsee, Germany; Lake Washington, USA), and with observations from a diverse set of 49 lakes/sites distributed widely across the Northern Hemisphere (NH). The model successfully captured the observed temporal variation of Daphnia phenology in the two case study sites (r(2) = 0.25 and 0.39 for Müggelsee and Lake Washington, respectively) and large-scale spatial variation in the NH (R(2) = 0.57). These results suggest that Daphnia phenology follows a uniform temperature dependency in NH lakes. Our approach--based on temperature phenologies--has large potential to study and predict phenologies of animal and plant populations across large latitudinal gradients in other ecosystems. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
