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Selecting umbrella species for conservation: a test of habitat models and niche overlap for beach-nesting birds

Maslo, B., Leu, K., Faillace, C., Weston, M.A., Pover, T. and Schlacher, T.A. 2016, Selecting umbrella species for conservation: a test of habitat models and niche overlap for beach-nesting birds, Biological conservation, vol. 203, pp. 233-242, doi: 10.1016/j.biocon.2016.09.012.

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Title Selecting umbrella species for conservation: a test of habitat models and niche overlap for beach-nesting birds
Author(s) Maslo, B.
Leu, K.
Faillace, C.
Weston, M.A.ORCID iD for Weston, M.A. orcid.org/0000-0002-8717-0410
Pover, T.
Schlacher, T.A.
Journal name Biological conservation
Volume number 203
Start page 233
End page 242
Total pages 10
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-11
ISSN 0006-3207
Keyword(s) beach-nesting birds
conservation shortcuts
habitat protection
niche overlap
species distribution modeling
umbrella species
wildlife management
Summary Umbrella species are rarely selected systematically from a range of candidate species. On sandy beaches, birds that nest on the upper beach or in dunes are threatened globally and hence are prime candidates for conservation intervention and putative umbrella species status. Here we use a maximum-likelihood, multi-species distribution modeling approach to select an appropriate conservation umbrella from a group of candidate species occupying similar habitats. We identify overlap in spatial extent and niche characteristics among four beach-nesting bird species of conservation concern, American oystercatchers (Haematopus palliatus), black skimmers (Rynchops niger), least terns (Sterna antillarum) and piping plovers (Charadrius melodus), across their entire breeding range in New Jersey, USA. We quantify the benefit and efficiency of using each species as a candidate umbrella on the remaining group. Piping plover nesting habitat encompassed 86% of the least tern habitat but only 15% and 13% of the black skimmer and American oystercatcher habitat, respectively. However, plovers co-occur with all three species across 66% of their total nesting habitat extent (~ 649 ha), suggesting their value as an umbrella at the local scale. American oystercatcher nesting habitat covers 100%, 99% and 47% of piping plover, least tern and black skimmer habitat, making this species more appropriate conservation umbrellas at a regional scale. Our results demonstrate that the choice of umbrella species requires explicit consideration of spatial scale and an understanding of the habitat attributes that an umbrella species represents and to which extent it encompasses other species of conservation interest. Notwithstanding the attractiveness of the umbrella species concept, local conservation interventions especially for breeding individuals in small populations may still be needed.
Language eng
DOI 10.1016/j.biocon.2016.09.012
Field of Research 050211 Wildlife and Habitat Management
Socio Economic Objective 960802 Coastal and Estuarine Flora
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30088256

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