@article{0496016ea05e41a487b400e966b715c2,
title = "Ecological correlates of species{\textquoteright} roles in highly invaded seed dispersal networks",
abstract = "Ecosystems with a mix of native and introduced species are increasing globally as extinction and introduction rates rise, resulting in novel species interactions. While species interactions are highly vulnerable to disturbance, little is known about the roles that introduced species play in novel interaction networks and what processes underlie such roles. Studying one of the most extreme cases of human-modified ecosystems, the island of O{\textquoteleft}ahu, Hawaii, we show that introduced species there shape the structure of seed dispersal networks to a greater extent than native species. Although both neutral and niche-based processes influenced network structure, niche-based processes played a larger role, despite theory predicting neutral processes to be predominantly important for islands. In fact, ecological correlates of species{\textquoteright} roles (morphology, behavior, abundance) were largely similar to those in native-dominated networks. However, the most important ecological correlates varied with spatial scale and trophic level, highlighting the importance of examining these factors separately to unravel processes determining species contributions to network structure. Although introduced species integrate into interaction networks more deeply than previously thought, by examining the mechanistic basis of species{\textquoteright} roles we can use traits to identify species that can be removed from (or added to) a system to improve crucial ecosystem functions, such as seed dispersal.",
keywords = "Ecological restoration, Hawaii, Mutualisms, Novel ecosystems, Plant-animal interactions",
author = "Jeferson Vizentin-Bugoni and Sperry, {Jinelle H.} and {Patrick Kelley}, J. and Gleditsch, {Jason M.} and Foster, {Jeffrey T.} and Drake, {Donald R.} and Hruska, {Amy M.} and Wilcox, {Rebecca C.} and Case, {Samuel B.} and Tarwater, {Corey E.}",
note = "Funding Information: We thank R. Mau and K. Parise for molecular analysis to identify game birds and unknown seeds; our crew leaders, E. Dittmar and I.G. Izquierdo; field and laboratory assistants for data collection (C. Antaky, M. Arias, S. Carroll, A. Earl, L. G{\'o}mez, N. Gondek, B. Hays, S. Hill-Lindsay, M. Hircq, N. Hunt, M. Jasper, R. Johnson, B. Lowe, S.E. MacDonald, M. Manakitivipart, K. Matsuoka, L. McCall, A. Molina, M.P. Mugnani, B. Nahorney, M. O{\textquoteright}Grady, M. Pendred, N. Preston, D. Roche, P. Ruisi-Besares, P. Rivers, M. Shimada, M. Sirch, Z. Tarren, M. Thistle, S. A. Tyndel, D. Weber, and H. Wilson); D. O{\textquoteright}Hearn for assistance with fruit nutrition analyses; L. Pool, P. Powell, and J. Hoh and the Waimea Valley Arboretum staff; H. F. M. Oliveira for facilitating access to literature; K. Kawelo and O‛ahu Army Natural Resources Program staff for logistical support; State of Hawaii Division of Forestry and Wildlife for land access (B. Gagne, M. Zoll, C. Miller, R. Peralta, J. Omick); and two anonymous reviewers for valuable suggestions. Permits for this study were University of New Hampshire Institutional Animal Care and Use Committee nos. 140502, 150601, 151003, and 160204. This study was supported in part by a US Department of Defense, Strategic Environmental Research and Development Program award W912HQ-14-C-0043 (to J.T.F., D.R.D., J.P.K., J.H.S., C.E.T. and B. Dickson); the University of Wyoming; the University of New Hampshire; the University of Hawaii; Northern Arizona University; and an Engineer Research and Development Center EQI Basic Research Program grant. This is publication no. 9 of the Hawaii Vertebrate Introductions and Novel Ecosystems Project. This is publication no. 37 of the School of Life Sciences, University of Hawai‛i at Mānoa. Funding Information: ACKNOWLEDGMENTS. We thank R. Mau and K. Parise for molecular analysis to identify game birds and unknown seeds; our crew leaders, E. Dittmar and I.G. Izquierdo; field and laboratory assistants for data collection (C. Antaky, M. Arias, S. Carroll, A. Earl, L. G{\'o}mez, N. Gondek, B. Hays, S. Hill-Lindsay, M. Hircq, N. Hunt, M. Jasper, R. Johnson, B. Lowe, S.E. MacDonald, M. Manakitivipart, K. Matsuoka, L. McCall, A. Molina, M.P. Mugnani, B. Nahorney, M. O{\textquoteright}Grady, M. Pendred, N. Preston, D. Roche, P. Ruisi-Besares, P. Rivers, M. Shimada, M. Sirch, Z. Tarren, M. Thistle, S. A. Tyndel, D. Weber, and H. Wilson); D. O{\textquoteright}Hearn for assistance with fruit nutrition analyses; L. Pool, P. Powell, and J. Hoh and the Waimea Valley Arboretum staff; H. F. M. Oliveira for facilitating access to literature; K. Kawelo and Oʻahu Army Natural Resources Program staff for logistical support; State of Hawaii Division of Forestry and Wildlife for land access (B. Gagne, M. Zoll, C. Miller, R. Peralta, J. Omick); and two anonymous reviewers for valuable suggestions. Permits for this study were University of New Hampshire Institutional Animal Care and Use Committee nos. 140502, 150601, 151003, and 160204. This study was supported in part by a US Department of Defense, Strategic Environmental Research and Development Program award W912HQ-14-C-0043 (to J.T.F., D.R.D., J.P.K., J.H.S., C.E.T. and B. Dickson); the University of Wyoming; the University of New Hampshire; the University of Hawaii; Northern Arizona University; and an Engineer Research and Development Center EQI Basic Research Program grant. This is publication no. 9 of the Hawaii Vertebrate Introductions and Novel Ecosystems Project. This is publication no. 37 of the School of Life Sciences, University of Hawaiʻi at Maµnoa. Publisher Copyright: {\textcopyright} 2021 National Academy of Sciences. All rights reserved.",
year = "2021",
month = jan,
day = "26",
doi = "10.1073/pnas.2009532118",
language = "English (US)",
volume = "118",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
publisher = "National Academy of Sciences",
number = "4",
}