Pregled bibliografske jedinice broj: 401283
Seagrass monitoring by underwater videography : Disturbance regimes, sampling design, and statistical power
Seagrass monitoring by underwater videography : Disturbance regimes, sampling design, and statistical power // Aquatic Botany, 88 (2008), 3; 228-238 doi:10.1016/j.aquabot.2007.10.009 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 401283 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Seagrass monitoring by underwater videography : Disturbance regimes, sampling design, and statistical power
Autori
Schultz, Stewart
Izvornik
Aquatic Botany (0304-3770) 88
(2008), 3;
228-238
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Seagrass; monitoring; video; power
Sažetak
Surface-based underwater videography with submeter-accuracy differential GPS is a method with several advantages, including high spatial and visual resolution, effectiveness at all depths at which seagrasses occur, non-destructive sampling, and rapid data collection in the field. Here I investigate the statistical power of this method applied to a natural meadow and to virtual meadows created by a spatially explicit model of seagrass disturbance, regrowth, and colonization. The approach is found to detect a 5– 10% loss in short timespans at 80% probability, with a sampling design emphasizing long transects (ffi 400 m or greater) and a paired analysis in which the same permanent transects are followed each monitoring event. A field effort function shows that this precision is possible within a single working field day for sampling regions ffi 1 km2. These conclusions hold regardless of the presence of positional error in remonitoring previous transects by submeter DGPS navigation.
Izvorni jezik
Engleski
Znanstvena područja
Biologija
POVEZANOST RADA
Projekti:
269-0000000-3174 - EKOLOGIJA I PRAĆENJE STANJA BENTOSKIH ŽIVOTNIH ZAJEDNICA HRVATSKOGA JADRANA
269-0362975-3174 - EKOLOGIJA I PRAĆENJE STANJA BENTOSKIH ŽIVOTNIH ZAJEDNICA HRVATSKOGA JADRANA (Schultz, Stewart, MZOS ) ( CroRIS)
Ustanove:
Sveučilište u Zadru
Profili:
Stewart Schultz
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus