17 Works

Data from: Seed dispersal by dispersing juvenile animals: a source of functional connectivity in fragmented landscapes

Juan P. González-Varo, Sarah Díaz-García, Juan M. Arroyo & Pedro Jordano
Juvenile animals generally disperse from their birthplace to their future breeding territories. In fragmented landscapes, habitat-specialist species must disperse through the anthropogenic matrix where remnant habitats are embedded. Here, we test the hypothesis that dispersing juvenile frugivores leave a footprint in the form of seed deposition through the matrix of fragmented landscapes. We focused on the Sardinian warbler (Sylvia melanocephala), a resident frugivorous passerine. We used data from field sampling of bird-dispersed seeds in the...

Data from: Bees use anthropogenic habitats despite strong natural habitat preferences

Miguel A. Collado, Daniel Sol & Ignasi Bartomeus
Aim: Habitat loss and alteration are widely considered one of the main drivers of current pollinator diversity loss. Yet little is known about habitat importance and preferences for major groups of pollinators, although this information is crucial to anticipate and mitigate the current decline of their populations. We aim to rank and assess the importance of different habitats for bees, to determine the preference for and avoidance of particular habitat types by different bees, and...

Seed mass, hardness and phylogeny determine the potential for endozoochory by granivorous waterbirds

Ádám Lovas-Kiss, Orsolya Vincze, Erik Kleyheeg, Gábor Sramkó, Levente Laczkó, Réka Fekete, Attila Molnár V. & Andy Green
Field studies have shown that waterbirds, especially members of the Anatidae family, are major vectors of dispersal for a broad range of plants whose propagules can survive gut passage. Widely adopted dispersal syndromes ignore this dispersal mechanism, and we currently have little understanding of what traits determine the potential of angiosperms for endozoochory by waterbirds. Results from previous experimental studies have been inconsistent as to how seed traits affect seed survival and retention time in...

Individual and synergistic effects of male external genital traits in sexual selection

Eduardo Rodriguez-Exposito, Francisco Garcia-Gonzalez & Michal Polak
Male genital traits exhibit extraordinary inter-specific phenotypic variation. This remarkable and general evolutionary trend is widely considered to be the result of sexual selection. However, we still do not have a good understanding of whether or how individual genital traits function in different competitive arenas (episodes of sexual selection), or how different genital traits may interact to influence competitive outcomes. Here, we use an experimental approach based on high-precision laser phenotypic engineering to address these...

Data from: Changes in melanocyte RNA and DNA methylation favor pheomelanin synthesis and may avoid systemic oxidative stress after dietary cysteine supplementation in birds

Sol Rodríguez-Martínez, Rafael Márquez, Ângela Inácio & Ismael Galván
Cysteine plays essential biological roles, but excessive amounts produce cellular oxidative stress. Cysteine metabolism is mainly mediated by the enzymes cysteine dioxygenase and γ-glutamylcysteine synthetase, respectively coded by the genes CDO1 and GCLC. Here we test a new hypothesis posing that the synthesis of the pigment pheomelanin also contributes to cysteine homeostasis in melanocytes, where cysteine can enter the pheomelanogenesis pathway. We conducted a experiment in the Eurasian nuthatch Sitta europaea, a bird producing large...

Data from: From groups to communities in western lowland gorillas

Giovanni Forcina, Dominique Vallet, Pascaline J. Le Gouar, Rubén Bernardo-Madrid, Germán Illera, Guillem Molina-Vacas, Stéphane Dréano, Eloy Revilla, José Domingo Rodríguez-Tejeiro, Nelly Ménard, Magdalena Bermejo, Carles Vilà & José Domingo Rodríguez-Teijeiro
Social networks are the result of interactions between individuals at different temporal scales. Thus, sporadic intergroup encounters and individual forays play a central role in defining the dynamics of populations in social species. We assessed the rate of intergroup encounters for three western lowland gorilla (Gorilla gorilla gorilla) groups with daily observations over five years, and noninvasively genotyped a larger population over four months. Both approaches revealed a social system much more dynamic than anticipated,...

Data from: The interplay of landscape composition and configuration: new pathways to manage functional biodiversity and agro-ecosystem services across Europe

Emily A. Martin, Matteo Dainese, Yann Clough, András Báldi, Riccardo Bommarco, Vesna Gagic, Michael Garratt, Andrea Holzschuh, David Kleijn, Anikó Kovács-Hostyánszki, Lorenzo Marini, Simon G. Potts, Henrik G. Smith, Diab Al Hassan, Matthias Albrecht, Georg K. S. Andersson, Josep Asis, Stephanie Aviron, Mario Balzan, Laura Baños-Picón, Ignasi Bartomeus, Peter Batary, Françoise Burel, Berta Caballero-López, Elena D. Concepcion … & Ingolf Steffan-Dewenter
Managing agricultural landscapes to support biodiversity and ecosystem services is a key aim of a sustainable agriculture. However, how the spatial arrangement of crop fields and other habitats in landscapes impacts arthropods and their functions is poorly known. Synthesising data from 49 studies (1515 landscapes) across Europe, we examined effects of landscape composition (% habitats) and configuration (edge density) on arthropods in fields and their margins, pest control, pollination and yields. Configuration effects interacted with...

Data from: Maiden voyage into death: are fisheries affecting seabird juvenile survival during the first days at sea?

Isabel Afán, Joan Navarro, David Gremillet, Marta Coll & Manuela G. Forero
The study of juvenile migration behavior of seabird species has been limited so far by the inability to track their movements during long time periods. Foraging and flying skills of young individuals are assumed to be inferior to those of adults, making them more vulnerable during long-distance migrations. In addition to natural oceanographic effects and intrinsic conditions, incidental seabird harvest by human fisheries is one of the main causes for worldwide seabird population declines, and...

Data from: Elevational and microclimatic drivers of thermal tolerance in Andean Pristimantis frogs

Pol Pintanel, Miguel Tejedo, Santiago R. Ron, Gustavo A. Llorente & Andrés Merino-Viteri
Aim: We analysed elevational and microclimatic drivers of thermal tolerance diversity in a tropical mountain frog clade to test three macrophysiological predictions: less spatial variation in upper than lower thermal limits (Bretts’ heat invariant hypothesis); narrower thermal tolerance ranges in habitats with less variation in temperature (Janzen´s climatic variability hypothesis); and higher level of heat impacts at lower altitudes. Location: Forest and open habitats through a 4230 m elevational gradient across the tropical Andes of...

Genetic admixture despite ecological segregation in a North African sparrow hybrid zone (Aves, Passeriformes, Passer domesticus x Passer hispaniolensis)

Martin Päckert, Abdelkrim Belkacem, Hannes Wolfgramm, Oliver Gast, David Canal, Gabriele Giacalone, Mario Lo Valvo, Melita Vamberger, Michael Wink, Jochen Martens & Heiko Stuckas
Under different environmental conditions hybridization between the same species might result in different patterns of genetic admixture. Particularly, species pairs with large distribution ranges and long evolutionary history may have experienced several independent hybridization events over time in different zones of overlap. In birds, the diverse hybrid populations of the house sparrow (Passer domesticus) and the Spanish sparrow (P. hispaniolensis) provide a striking example. Throughout their range of sympatry, these two species do not regularly...

Interaction motifs variability in a Mediterranean palm under environmental disturbances: the mutualism‐antagonism continuum

Miguel Jácome-Flores, Pedro Jordano, Miguel Delibes, Jose M. Fedriani & Miguel E. Jácome–Flores
The nature and the strength of plant¬ frugivore interactions often vary along an antagonism-mutualism continuum and are highly influenced by the local ecological context (e.g. level of environmental disturbances). However, little is known concerning how the local ecological setting where plant-frugivore interactions take place affects the seed dispersal effectiveness (SDE) and, eventually, plant recruitment. This knowledge gap relates to the scarcity of empirical investigations on individual-based plant-frugivore networks. We assessed whether the assembly of interaction...

Flower traits, habitat and phylogeny as predictors of pollinator service: a plant community perspective

Carlos M. Herrera
Pollinator service is essential for successful sexual reproduction and long-term population persistence of animal-pollinated plants, and innumerable studies have shown that insufficient service by pollinators results in impaired sexual reproduction (“pollen limitation”). Studies directly addressing the predictors of variation in pollinator service across species or habitats remain comparatively scarce, which limits our understanding of the primary causes of natural variation in pollen limitation. This paper evaluates the importance of pollination-related features, evolutionary history and environment...

Data from: Seed-dispersal networks in tropical forest fragments: area effects, remnant species, and interaction diversity

Carine Emer, Pedro Jordano, Marco Aurélio Pizo, Milton Cezar Ribeiro, Fernanda Ribeiro Da Silva & Mauro Galetti
Seed dispersal interactions involve key ecological processes in tropical forests that help to maintain ecosystem functioning. Yet this functionality may be threatened by increasing habitat loss, defaunation and fragmentation. However, generalist species, and their interactions, can benefit from the habitat change caused by human disturbance while more specialized interactions mostly disappear. Therefore changes in the structure of the local, within fragment, networks can be expected. Here we investigated how the structure of seed-dispersal networks changes...

Data from: The influence of spatial sampling scales on ant-plant interaction network architecture

Wesley Dáttilo, Jeferson Vizentin-Bugoni, Vanderlei J. Debastiani, Pedro Jordano & Thiago J. Izzo
1.Despite great interest in metrics to quantify the structure of ecological networks, the effects of sampling and scale remain poorly understood. In fact, one of the most challenging issues in ecology is how to define suitable scales (i.e., temporal or spatial) to accurately describe and understand ecological systems. 2.Here, we sampled a series of ant‐plant interaction networks in the southern Brazilian Amazon rainforest in order to determine whether the spatial sampling scale, from local to...

Data from: Spatiotemporally explicit demographic modelling supports a joint effect of historical barriers to dispersal and contemporary landscape composition on structuring genomic variation in a red-listed grasshopper

María José González-Serna, Pedro J. Cordero & Joaquín Ortego
Inferring the processes underlying spatial patterns of genomic variation is fundamental to understand how organisms interact with landscape heterogeneity and to identify the factors determining species distributional shifts. Here, we employ genomic data (ddRADSeq) to test biologically-informed models representing historical and contemporary demographic scenarios of population connectivity for the Iberian cross-backed grasshopper Dociostaurus hispanicus, a species with a narrow distribution that currently forms highly fragmented populations. All models incorporated biological aspects of the focal taxon...

Data from: Ecomorphological convergence in Eleutherodactylus frogs: a case of replicate radiations in the Caribbean

Álvaro Dugo-Cota, Carles Vilà, Ariel Rodríguez & Alejandro Gonzalez-Voyer
Replicate radiations, the repeated multiplication of species associated with ecological divergence, have attracted much attention and generated as much debate. Due to the few well‐studied cases, it remains unclear whether replicate radiations are an exceptional result of evolution or a relatively common example of the power of adaptation by natural selection. We examined the case of Eleutherodactylus frogs, which radiated in the Caribbean islands resulting in more than 160 species that occupy very diverse habitats....

Data from: Broodmate aggression and life history variation in accipitrid birds of prey

Tomás Redondo, José María Romero, Ricardo Díaz-Delgado & Jenő Nagy
Aggressive sibling competition for parental food resources is relatively infrequent in animals but highly prevalent and extreme among certain bird families, particularly accipitrid raptors (Accipitriformes). Intense broodmate aggression within this group is associated with a suite of traits including a large adult size, small broods, low provisioning rates, and slow development. In this study, we apply phylogenetic comparative analyses to assess the relative importance of several behavioral, morphological, life history, and ecological variables as predictors...

Registration Year

  • 2019
    17

Resource Types

  • Dataset
    17

Affiliations

  • Estación Biológica de Doñana
    17
  • University of Barcelona
    2
  • French National Centre for Scientific Research
    2
  • University of Debrecen
    2
  • Instituto de Ecología
    2
  • MTA Centre for Ecological Research
    2
  • Universitaire Ziane Achour de Djelfa
    1
  • University of Padua
    1
  • Sao Paulo State University
    1
  • University of Würzburg
    1