13 Works

Data from: Changing drivers of species dominance during tropical forest succession

Madelon Lohbeck, Lourens Poorter, Miguel Martínez-Ramos, Jorge Rodriguez-Velázquez, Michiel Van Breugel & Frans Bongers
1. Deterministic theories predict that local communities assemble from a regional species pool based on niche differences, thus by plant functional adaptations. We tested whether functional traits can also explain patterns in species dominance among the suite of co-occurring species. 2. We predicted that along a gradient of secondary succession the main driver of species dominance changes from environmental filtering in the relatively harsh (dry and hot) early successional conditions, towards increased competitive interactions and...

Data from: Tracking climate change in a dispersal-limited species: reduced spatial and genetic connectivity in a montane salamander

Guillermo Velo-Antón, Juan L. Parra, Gabriela Parra-Olea & Kelly R. Zamudio
Tropical montane taxa are often locally adapted to very specific climatic conditions, contributing to their lower dispersal potential across complex landscapes. Climate and landscape features in montane regions affect population genetic structure in predictable ways, yet few empirical studies quantify the effects of both factors in shaping genetic structure of montane-adapted taxa. Here, we considered temporal and spatial variability in climate to explain contemporary genetic differentiation between populations of the montane salamander, Pseudoeurycea leprosa. Specifically,...

Data from: Evolutionary changes in plant tolerance against herbivory through a resurrection experiment

Carlos Bustos-Segura, Juan Fornoni & J. Núñez-Farfán
Both theoretical and empirical works have highlighted the difference in the evolutionary implications of host resistance and tolerance against their enemies. However, it has been difficult to show evolutionary changes in host defences in natural populations; thus, evaluating theoretical predictions of simultaneous evolution of defences remains a challenge. We studied the evolutionary changes in traits related to resistance and tolerance against herbivory in a natural plant population using seeds from two collections made in a...

Data from: Genetic divergence predicts reproductive isolation in damselflies

Rosa Ana Sánchez Guillén, Alex Córdoba-Aguilar, Adolfo Cordero Rivera & Maren Wellenreuther
Reproductive isolation is the defining characteristic of a biological species, and a common but often untested prediction is a positive correlation between reproductive isolation and genetic divergence. Here we test for this correlation in odonates, an order characterized by strong sexual selection. First, we measure reproductive isolation and genetic divergence in eight damselfly genera (30 species pairs) and test for a positive correlation. Second, we estimate the genetic threshold preventing hybrid formation and empirically test...

Data from: Costs of growing up as a subordinate sibling are passed to the next generation in blue-footed boobies

Hugh Drummond & Cristina Rodríguez
As stresses in early development may generate costs in adult life, sibling competition and conflict in infancy are expected to diminish the reproductive value of surviving low-status members of broods and litters. We analysed delayed costs to blue-footed booby fledglings, Sula nebouxii, of junior status in the brood, which involves aggressive subordination, food deprivation and elevated corticosterone, but little or no deficit in size at fledging. In ten cohorts observed for up to 16 years,...

Data from: The role of inbreeding depression and mating system in the evolution of heterostyly

Jennifer J. Weber, Stephen G. Weller, Ann K. Sakai, Olga V. Tsyusko, Travis C. Glenn, Cesar A. Dominguez, Francisco E. Molina-Freaner, Juan Fornoni, Mike Tran, Nhu Nguyen, Karen Nguyen, Lien-Khuong Tran, Greg Joice & Ellen Harding
We investigated the role of morph-based differences in the expression of inbreeding depression in loss of the mid-styled morph from populations of tristylous Oxalis alpina as proposed by theoretical analyses. The extent of self-compatibility of reproductive morphs, the degree of self-fertilization, and the magnitude of inbreeding depression were investigated in three populations of O. alpina differing in their tristylous incompatibility relationships. All three populations exhibited significant inbreeding depression. In two populations with highly modified tristylous...

Data from: Biogeographic regions of North American mammals based on endemism

Tania Escalante, Juan J. Morrone & Gerardo Rodríguez-Tapia
Since the 19th century, two regions have been recognized for North American mammals, which overlap in Mexico. The Nearctic region corresponds to the northern areas and the Neotropical region to the southern ones. There are no recent regionalizations for these regions under the criterion of endemism. We integrate herein two methods to regionalize North America, using species distribution models of mammals: Endemicity Analysis (EA) and Parsimony Analysis of Endemicity (PAE). EA was used to obtain...

Data from: Life history plasticity of a tropical seabird in response to El Niño anomalies during early life

Sergio Ancona & Hugh Drummond
Food shortage and other challenges associated with El Niño Southern Oscillation (ENSO) experienced early in life may have long-term impacts on life history traits, but these potential impacts remain virtually unexplored. By monitoring 2556 blue-footed boobies from 11 cohorts, we showed that birds facing warm water ENSO conditions (and probably low food availability) in the natal year were underweight at fledging, recruited earlier and bred less frequently, but showed no deficit in longevity or breeding...

Data from: Landscape genetics of leaf-toed geckos in the tropical dry forest of northern Mexico

Christopher Blair, Victor H. Jiménez Arcos, Fausto R. Mendez De La Cruz & Robert W. Murphy
Habitat fragmentation due to both natural and anthropogenic forces continues to threaten the evolution and maintenance of biological diversity. This is of particular concern in tropical regions that are experiencing elevated rates of habitat loss. Although less well-studied than tropical rain forests, tropical dry forests (TDF) contain an enormous diversity of species and continue to be threatened by anthropogenic activities including grazing and agriculture. However, little is known about the processes that shape genetic connectivity...

Data from: Phylogenetic signal, feeding behaviour, and brain volume in Neotropical bats

Danny Rojas, Carlos A. Mancina, José J. Flores-Martínez & Luis Navarro
Comparative correlational studies of brain size and ecological traits (e.g. feeding habits and habitat complexity) have increased our knowledge about the selective pressures on brain evolution. Studies conducted in bats as a model system assume that shared evolutionary history has a maximum effect on the traits. However, this effect has not been quantified. In addition, the effect of levels of diet specialization on brain size remains unclear. We examined the role of diet on the...

Data from: Phylogenomics reveals extensive reticulate evolution in Xiphophorus fishes

Rongfeng Cui, Molly Schumer, Karla Kruesi, Ronald Brice Walter, Peter Andolfatto, Gil G. Rosenthal & Ronald Walter
Hybridization is increasingly being recognized as a widespread process, even between ecologically and behaviorally divergent animal species. Determining phylogenetic relationships in the presence of hybridization remains a major challenge for evolutionary biologists, but advances in sequencing technology and phylogenetic techniques are beginning to address these challenges. Here we reconstruct evolutionary relationships among swordtails and platyfishes (Xiphophorus: Poeciliidae), a group of species characterized by remarkable morphological diversity and behavioral barriers to interspecific mating. Past attempts to...

Data from: New approaches to the biogeography and areas of endemism of red oaks (Quercus L., section Lobatae)

Andrés Torres-Miranda, Isolda Luna-Vega & Ken Oyama
An area of endemism is defined by the spatial congruence among two or more species with distributions that are limited by barriers. In this study, we explored and discussed the use of the network analysis method (NAM) and neighbor-joining (NJ) to analyze the areas of endemism of Quercus sect. Lobatae (red oak species) in Mexico and Central America. We compared the NAM and NJ with other methods commonly used in biogeographic studies to show the...

Data from: Effect of juvenile hormone on senescence in males with terminal investment

Daniel González-Tokman, Isaac González-Santoyo, Roberto Munguía-Steyer & Alex Córdoba-Aguilar
Senescence, a decline in survival and reproductive prospects with age, is controlled by hormones. In insects, juvenile hormone (JH) is involved in senescence with captive individuals, but its effect under natural conditions is unknown. We have addressed this gap by increasing JH levels in young and old wild males of the damselfly Hetaerina americana. We assessed survival in males that were treated with a JH analogue (methoprene), which is known to promote sexual activity, and...

Registration Year

  • 2013
    13

Resource Types

  • Dataset
    13

Affiliations

  • National Autonomous University of Mexico
    13
  • University of Vigo
    2
  • CIUDAD
    1
  • Princeton University
    1
  • University of Georgia
    1
  • Royal Ontario Museum
    1
  • Lund University
    1
  • Texas A&M University
    1
  • University of Kentucky
    1
  • Smithsonian Tropical Research Institute
    1