Diversity and Distributions

article

Ontario freshwater fishes demonstrate differing range‐boundary shifts in a warming climate

Karen M. Alofs, Donald A. Jackson, Nigel P. Lester, Hugh MacIsaac

Diversity and Distributions > 20 > 2 > 123 - 136

AimNortherly shifts, related to recent climate warming, have been observed in the distributions of taxa in many ecosystems and ecological roles. However, significant variation occurs among species in the magnitude of these shifts. Few studies have investigated the effects of climate warming on the distributions of freshwater species. LocationA total of 1527 lakes across Ontario, Canada. MethodsWe...

article

A conceptual model of community dynamics during the transport stage of the invasion process: a case study of ships’ ballast

Elizabeta Briski, Farrah T. Chan, Hugh J. MacIsaac, Sarah A. Bailey, more

Diversity and Distributions > 20 > 2 > 236 - 244

AimAfter J. L. Lockwood, P. Cassey and T. Blackburn (2009, Diversity and Distributions, 15, 904–910) first described a theoretical relationship between propagule pressure and colonization pressure, two empirical studies demonstrated that the transport stage of the invasion process can profoundly influence the strength of the relationship among multiple events, as well as predictions of introduction...

article

Bird functional diversity enhances insectivory at forest edges: a transcontinental experiment

Luc Barbaro, Brice Giffard, Yohan Charbonnier, Inge Halder, more

Diversity and Distributions > 20 > 2 > 149 - 159

AimThe role of bird–insect interactions in shaping bird distribution patterns at the landscape scale has been seldom investigated. In mosaic landscapes, bird functional diversity is considered to be an important driver of avian insectivory, but depends on forest fragmentation and edge effects from adjacent, non‐forest habitats. In a transcontinental experiment, we investigated edge and landscape effects...

article

Engineering by an invasive species alters landscape‐level ecosystem function, but does not affect biodiversity in freshwater systems

Christopher B. Anderson, María Vanessa Lencinas, Petra K. Wallem, Alejandro E. J. Valenzuela, more

Diversity and Distributions > 20 > 2 > 214 - 222

AimEcological theory predicts that invasive ecosystem engineers like the American beaver (Castor canadensis) in Tierra del Fuego (TDF) affect landscape‐level biodiversity and ecosystem function (BEF) when engineered habitats are novel or extensive. We tested these hypotheses on freshwater BEF, sampling benthic habitat and macroinvertebrates in natural lotic (forest and grassland streams) and natural...

article

Bioclimatic velocity: the pace of species exposure to climate change

Josep M. Serra‐Diaz, Janet Franklin, Miquel Ninyerola, Frank W. Davis, more

Diversity and Distributions > 20 > 2 > 169 - 180

AimTo investigate the velocity of species‐specific exposure to climate change for mid‐ and late 21st century and develop metrics that quantify exposure to climate change over space and time. LocationCalifornia Floristic Province, south‐western USA. MethodsOccurrences from presence/absence inventories of eight Californian endemic tree species (Pinus balfouriana [Grev.&Balf.], Pinus coulteri [D...

article

The invasion window for warmwater fish in clearwater lakes: the role of ultraviolet radiation and temperature

Andrew J. Tucker, Craig E. Williamson, Hugh MacIsaac

Diversity and Distributions > 20 > 2 > 181 - 192

AimIn clear, cold‐water lakes, ultraviolet radiation (UV) and temperature are two important stressors that may prevent the establishment of aquatic invasive species by inhibiting the survival of sensitive early life history stages. In this study, we develop a UV–temperature response model to predict the establishment potential of a warmwater fish, largemouth bass (Micropterus salmoides), in a large...

article

Regional distribution models with lack of proximate predictors: Africanized honeybees expanding north

Catherine S. Jarnevich, Wayne E. Esaias, Peter L. A. Ma, Jeffery T. Morisette, more

Diversity and Distributions > 20 > 2 > 193 - 201

AimSpecies distribution models have often been hampered by poor local species data, reliance on coarse‐scale climate predictors and the assumption that species–environment relationships, even with non‐proximate predictors, are consistent across geographical space. Yet locally accurate maps of invasive species, such as the Africanized honeybee (AHB) in North America, are needed to support conservation...

article

Intercolony movement of pre‐breeding seabirds over oceanic scales: implications of cryptic age‐classes for conservation and metapopulation dynamics

Anthony W. J. Bicknell, Mairi E. Knight, David T. Bilton, Maria Campbell, more

Diversity and Distributions > 20 > 2 > 160 - 168

AimDemographic linkage between subpopulations plays a critical role in population processes. Metapopulation dynamics, however, remains one of the most poorly understood aspects of population biology. This is especially true for small, pelagic seabirds because their discrete subpopulations are located on offshore islands, separated by vast areas of open ocean, making monitoring logistically challenging...

article

From the matrix to roadsides and beyond: the role of isolated paddock trees as dispersal points for invasion

Claire Coulson, Peter G. Spooner, Ian D. Lunt, Simon J. Watson, more

Diversity and Distributions > 20 > 2 > 137 - 148

AimVertebrate seed dispersers play an important role in determining the spatial distributions of many plants, yet few studies have examined patterns of dispersal in fragmented rural landscapes. This study investigated the factors that influence the occurrence and density of roadside populations of two vertebrate‐dispersed trees (Brachychiton populneus and Schinus molle) in roadside environments. ...

article

Antagonistic effects of biological invasion and temperature change on body size of island ectotherms

Anne M. Treasure, Steven L. Chown, Jeffrey Diez

Diversity and Distributions > 20 > 2 > 202 - 213

AimDespite their potentially profound consequences, little is known about the impacts of interactions among environmental change drivers on indigenous species. For biological invasions, much theoretical prominence has been given to additive or synergistic interactions with temperature change. However, empirical investigations are sparse. Here, we investigate the outcomes of interactions between temperature...

article

Accounting for false positives improves estimates of occupancy from key informant interviews

Rajeev Pillay, David A. W. Miller, James E. Hines, Atul A. Joshi, more

Diversity and Distributions > 20 > 2 > 223 - 235

AimMuch research in conservation biogeography is fundamentally dependent on obtaining reliable data on species distributions across space and time. Such data are now increasingly being generated using various types of public surveys. These data are often integrated with occupancy models to evaluate distributional patterns, range dynamics and conservation status of multiple species at broad spatio‐temporal...

INFONA - science communication portal

Diversity and Distributions

Ontario freshwater fishes demonstrate differing range‐boundary shifts in a warming climate

A conceptual model of community dynamics during the transport stage of the invasion process: a case study of ships’ ballast

Bird functional diversity enhances insectivory at forest edges: a transcontinental experiment

Engineering by an invasive species alters landscape‐level ecosystem function, but does not affect biodiversity in freshwater systems

Bioclimatic velocity: the pace of species exposure to climate change

The invasion window for warmwater fish in clearwater lakes: the role of ultraviolet radiation and temperature

Regional distribution models with lack of proximate predictors: Africanized honeybees expanding north

Intercolony movement of pre‐breeding seabirds over oceanic scales: implications of cryptic age‐classes for conservation and metapopulation dynamics

From the matrix to roadsides and beyond: the role of isolated paddock trees as dispersal points for invasion

Antagonistic effects of biological invasion and temperature change on body size of island ectotherms

Accounting for false positives improves estimates of occupancy from key informant interviews

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