8 Works

Data from: Phenotypic plasticity of senescence in Daphnia under predation impact: No ageing acceleration when the perceived risk decreases with age

Barbara Pietrzak, Max Rabus, Maciej Religa, Christian Laforsch & Maciej J. Dańko
Recognizing the nature of the predation risk, and responding to it accurately, is crucial to fitness. Yet, even the most accurate adaptive responses to predation risk usually entail costs, both immediate and lifelong. Rooting in life history theory, we hypothesize that an animal can perceive the nuances of prey size and age selectivity by the predator and modulate its life history accordingly. We test the prediction that – contrary to the faster or earlier senescence...

Data from: Warming impacts on early life stages increase the vulnerability and delay the population recovery of a long-lived habitat-forming macroalga

Pol Capdevila, Bernat Hereu, Roberto Salguero-Gómez, Graciel·La Rovira, Alba Medrano, Emma Cebrian, Joaquim Garrabou, Diego K. Kersting & Cristina Linares
1. Understanding the combined effects of global and local stressors is crucial for conservation and management, yet challenging due to the different scales at which these stressors operate. Here we examine the effects of one of the most pervasive threats to marine biodiversity, ocean warming, on the early life stages of the habitat-forming macroalga Cystoseira zosteroides, its long-term consequences for population resilience and its combined effect with physical stressors. 2. First, we performed a controlled...

Data from: Prioritizing management actions for invasive populations using cost, efficacy, demography, and expert opinion for 14 plant species worldwide

Natalie Z. Kerr, Peter W. J. Baxter, Roberto Salguero-Gomez, Glenda M. Wardle, Yvonne M. Buckley & Peter W.J. Baxter
Management of invasive populations is typically investigated case-by-case. Comparative approaches have been applied to single aspects of management, such as demography, with cost or efficacy rarely incorporated. We present an analysis of the ranks of management actions for 14 species in five countries that extends beyond the use of demography alone to include multiple metrics for ranking management actions, which integrate cost, efficacy and demography (cost-effectiveness) and managers’ expert opinion of ranks. We use content...

Data from: A demographic ménage à trois: interactions between disturbances both amplify and dampen population dynamics of an endemic plant

Matthew R. Tye, Eric S. Menges, Carl Weekley, Pedro F. Quintana-Ascencio, Roberto Salguero-Gómez & Matthew Tye
Natural and anthropogenic disturbances co-occur in most systems, but how they interact to shape demographic outcomes remains poorly understood. Such interactions may alter dynamics of populations in non-additive ways, making demographic predictions challenging when focusing on only one disturbance. Thus, understanding the interactive effects of such disturbances is critically important to determine the population viability of most species under a diversity of stressors. We used a hierarchical integral projection model (IPM), parameterized with 13 years...

Data from: Data gaps and opportunities for comparative and conservation biology

Dalia A. Conde, Johanna Staerk, Fernando Colchero, Rita Da Silva, Jonas Schöley, H. Maria Baden, Lionel Jouvet, John E. Fa, Hassan Syed, Eelke Jongejans, Shai Meiri, Jean-Michel Gaillard, Scott Chamberlain, Jonathan Wilcken, Owen R. Jones, Johan P. Dahlgren, Ulrich K. Steiner, Lucie M. Bland, Ivan Gomez-Mestre, Jean-Dominique Lebreton, Jaime González Vargas, Nate Flesness, Vladimir Canudas-Romo, Roberto Salguero-Gómez, Onnie Byers … & James W. Vaupel
Biodiversity loss is a major challenge. Over the past century, the average rate of vertebrate extinction has been about 100-fold higher than the estimated background rate and population declines continue to increase globally. Birth and death rates determine the pace of population increase or decline, thus driving the expansion or extinction of a species. Design of species conservation policies hence depends on demographic data (e.g., for extinction risk assessments or estimation of harvesting quotas). However,...

Data from: Less favorable climates constrain demographic strategies in plants

Anna M. Csergo, Roberto Salguero-Gómez, Olivier Broennimann, Shaun R. Coutts, Antoine Guisan, Amy L. Angert, Erik Welk, Iain Stott, Brian J. Enquist, Brian McGill, Jens-Christian Svenning, Cyrille Violle & Yvonne M. Buckley
Correlative species distribution models are based on the observed relationship between species’ occurrence and macroclimate or other environmental variables. In climates predicted less favourable populations are expected to decline, and in favourable climates they are expected to persist. However, little comparative empirical support exists for a relationship between predicted climate suitability and population performance. We found that the performance of 93 populations of 34 plant species worldwide – as measured by in situ population growth...

Data from: Comparative analysis of animal growth: a primate continuum revealed by a new dimensionless growth rate coefficient

Lucio Vinicius & Hannah S. Mumby
The comparative analysis of animal growth still awaits full integration into life history studies, partially due to the difficulty of defining a comparable measure of growth rate across species. Using growth data from 50 primate species, we introduce a modified ‘general growth model’ and a dimensionless growth rate coefficient β that controls for size scaling and phylogenetic effects in the distribution of growth rates. Our results contradict the prevailing idea that slow growth characterizes primates...

Data from: Advancing population ecology with integral projection models: a practical guide

Cory Merow, Johan P. Dalgren, C. Jessica E. Metcalf, Dylan Z. Childs, M. E. K. Evans, Eelke Jongejans, Sydne Record, Mark Rees, Roberto Salguero-Gómez, Sean M. McMahon, Margaret E.K. Evans & Johan P. Dahlgren
Integral Projection Models (IPMs) use information on how an individual's state influences its vital rates - survival, growth and reproduction - to make population projections. IPMs are constructed from regression models predicting vital rates from state variables (e.g., size or age) and covariates (e.g., environment). By combining regressions of vital rates, an IPM provides mechanistic insight into emergent ecological patterns such as population dynamics, species geographic distributions, or life history strategies. Here, we review important...

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