Laroche, Fabien
- Institutionen för ekologi, Sveriges lantbruksuniversitet
- Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)
Sammanfattning
In many fragmented habitats, the detectability of a population in a habitat patch closely depends on the local abundance of individuals. However, metapopulation studies rarely connect abundance and detectability. We propose a framework for using abundance-based estimates of detectability in the analysis of a spatially-explicit stochastic patch occupancy model (SPOM). We illustrate our approach with the example of Tenebrio opacus, a beetle inhabiting hollows in old trees, and have based it on a 6-year monitoring programme of adult beetles in an area harbouring a high density of old oaks. We validated our abundance-based methodology by showing that the estimates of detectability were positively and significantly correlated with those obtained from presence/absence data (Pearson r=0.54, p
Nyckelord
Occupancy; SPOM; Likelihood; Missing data; Colonization
Publicerad i
Oecologia
2018, volym: 188, nummer: 3, sidor: 671-682
Utgivare: SPRINGER
SLU författare
Paltto, Heidi
- Institutionen för ekologi, Sveriges lantbruksuniversitet
- Institutionen för ekologi, Sveriges lantbruksuniversitet
Ranius, Thomas
- Institutionen för ekologi, Sveriges lantbruksuniversitet
- Institutionen för ekologi, Sveriges lantbruksuniversitet
UKÄ forskningsämne
Ekologi
Publikationens identifierare
- DOI: https://doi.org/10.1007/s00442-018-4220-5
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/96996