Environmental Models of Cetacean Abundance: Reducing Uncertainty in Population Trends

By Karin A. Forney. 2000

208 citations recorded by the source corpus.

Subfields: Ecology, Nature and Landscape Conservation

View Paper: https://www.semanticscholar.org/paper/fadf45eed433f36b79b170090f99e10123230257

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In Nature and Landscape Conservation

Citations in the corpus

Abundance and population density of cetaceans in the California Current ecosystem (2007, background): “Forney (2000) found that sea surface temperature was a very good predictor of Dall’s porpoise distribution.”
Behavioural drivers of the ecological roles and importance of marine mammals (2015, background): “…and on how their distributions, abundances and behaviours are affected by both abiotic (physiographic and dynamic oceanographic variables; e.g. Forney 2000, Mannocci et al. 2014, and see Gregr et al. 2013 for a review) and biotic factors (e.g. prey availability or, more often, proxies of prey…”
LESSONS FROM MONITORING TRENDS IN ABUNDANCE OF MARINE MAMMALS (2007, background): “Data on habitat variables associated with their distribution can be used to improve our ability to detect trends (Forney 2000), but additional research is needed to broaden the range of stocks considered and to better characterize population structure.”
Monitoring cetaceans in European waters (2004, methodology): “Using generalized additive models (GAMs), Forney (2000) found that environmental variables were only partly successful in reducing variability in sighting rates and trends over time for shortbeaked common dolphins Delphinus delphis and Dall’s porpoise Phocoenoides dalli.”
Modeling distribution and abundance of Antarctic baleen whales using ships of opportunity (2006, background): “As in other similar studies (e.g., Clarke et al. 2000, Forney 2000, Hedley 2000, Marques 2001), we model the clustering in the data using quasi-likelihood, assuming that variance is proportional to the mean, and thus accounting for at least some of the over-dispersion present in the data (compared…”
Summer distribution patterns of southern resident killer whales Orcinus orca: core areas and spatial segregation of social groups (2007, background): “Many marine predators, such as cetaceans, respond to ecosystem variability by modifying their distribution pattern to limit reductions in survival or reproductive success (Forney 2000).”
The Pelagos Sanctuary for Mediterranean marine mammals (2008, background): “These factors will influence the ability of resource managers to interpret trends in population abundance and demographic rates of local populations, and the basin-wide movement patterns of these species ( Forney, 2000; Gerber et al., 2005).”
Comparing California Current cetacean-habitat models developed using in situ and remotely sensed sea surface temperature data (2010, methodology): “These terms were similar in functional form to encounter rate GAMs developed for this species by Forney (2000), confirming its preference for cooler, upwelling-modified water.”
Predicting cetacean abundance and distribution in a changing climate (2018, methodology): “…or‐ igins (McClatchie, 2014; Reid, Roden, & Wyllie, 1958), a bivariate SST:latitude predictor would account for these effects, and other modelling studies have used similar approaches to account for latitu‐ dinal temperature gradients within large study areas (Forney, 2000; Yuan et al., 2017).”
Spatial models of delphinid (family Delphinidae) encounter rate and group size in the eastern tropical Pacific Ocean (2006, background): “Previous analyses of cetacean habitat associations in the ETP (Reilly, 1990; Reilly and Fiedler, 1994; Reilly et al., 2002) and elsewhere (Forney, 1999, 2000; Hedley et al., 1999; Hedley and Buckland, 2004) examined the relationship of group encounter rate (another relative measure of population…”
Winter distribution of blue crab Callinectes sapidus in Chesapeake Bay : application and cross-validation of a two-stage generalized additive model (2005, methodology): “…& Marteinsdottir 2002) or including a year term (e.g. Maravelias et al. 2000b) in the model, and one has used inter-annual cross-validation to compare 2 separate model years 253 Mar Ecol Prog Ser 299: 239–255, 2005 (Forney 2000), this is the first systematic test of GAM habitat model generality.”
Techniques for cetacean-habitat modeling (2006, background): “…cetacean research, but the promise of this technique has been demonstrated in a number of applications including improvement of abundance estimates (Forney 2000), development of marine protected areas (Hooker et al. 1999, Cañadas et al. 2002), and understanding cetacean–fisheries interactions…”
Habitat-based spatial models of cetacean density in the eastern Pacific Ocean (2012, methodology): “Model validation using an independent data set is an integral part of building robust cetacean-habitat models (Forney 1997, 2000, Becker 2007).”
Summer spatial distribution of cetaceans in the Strait of Gibraltar in relation to the oceanographic context (2008, background): “Interestingly, most of the relationships we found between cetacean presence (or abundance) and covariates were linear or had very simple non-linear shapes (e.g. pilot whale), in contrast with many other studies using GAMs (e.g. Forney 2000, Ferguson et al. 2006, Williams et al. 2006).”