Beatriz Rumeu

Beatriz Rumeu
Universidad de Cádiz | UCA · Department of Biology

PhD

About

53
Publications
12,182
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
518
Citations
Introduction
My research is mainly focused on island ecology and evolution. I have a broad interest in plant-animal interactions and their ecological and evolutionary consequences, as well as their implications for conservation. As an island biologist, I am also highly interested in the biogeography, colonization, and evolution of island biota.
Additional affiliations
January 2015 - December 2015
University of Coimbra
Position
  • PostDoc Position
January 2010 - December 2011

Publications

Publications (53)
Article
Full-text available
1. The ongoing biodiversity crisis entails the concomitant loss of species and the ecological services they provide. Global defaunation, and particularly the loss of frugivores, may negatively affect the seed dispersal of fleshy-fruited plant species, with predictable stronger impacts in simplified communities such as those on oceanic islands. Howe...
Article
Full-text available
Island radiations imply the emergence of numerous species in a short period of time. Downscaling at the infraspecific level, considerable differentiation among populations can be a sign of ‘incipient radiation’. However, this process remains largely unexplored. We focus on one of the most outstanding cases of infraspecific morphological variation i...
Article
Mutualistic network parameters, such as modularity and nestedness, show non-random linkage patterns. Both increase network stability in different ways. Modularity hampers extinction cascades, whereas nestedness resists network disassembly. We explore these parameters in seed-dispersal networks in two archipelagos and the significance of life histor...
Article
AimConifers comprise an ancient and diverse group of plants showing a wide distribution range. To better understand the general patterns of species successfully established on islands, this review compiles information about the distribution, diversity, dispersal potential and conservation status of insular conifers, with special emphasis on those i...
Article
Full-text available
A central aim of island biogeography is to understand the colonization history of insular species using current distributions, fossil records and genetic diversity. Here, we analyze five plastid DNA regions of the endangered Juniperus brevifolia, which is endemic to the Azores archipelago. The phylogeny of the section Juniperus and the phylogeograp...
Article
Avian seed dispersers are mostly identified by direct observations of fruit consumption or by analysis of seeds ejected by mist-netted birds. However, these methods typically require many fieldwork days to provide initial insight into which bird species disperse the seeds of a plant species or community of interest. Here, we highlight the advantage...
Article
Full-text available
Las pomaradas de sidra de Asturias son cultivos no intensivos capaces de albergar una fauna rica y abundante, con potencial para proporcionar relevantes servicios ecosistémicos como el control biológico de plagas. En este artículo, resumimos nuestras investigaciones sobre sus aves insectívoras e identificamos acciones de gestión agroambiental para...
Chapter
El Parque Nacional del Teide alberga los principales núcleos poblacionales de cedro canario (Juniperus cedrus) en la isla de Tenerife. Los estudios científicos que aquí se recopilan han supuesto un importante avance en el conocimiento de esta especie y sientan la base para futuras investigaciones y actuaciones de gestión orientadas a la conservació...
Article
Full-text available
Climate change is forcing the redistribution of life on Earth at an unprecedented velocity1,2. Migratory birds are thought to help plants to track climate change through long-distance seed dispersal3,4. However, seeds may be consistently dispersed towards cooler or warmer latitudes depending on whether the fruiting period of a plant species coincid...
Preprint
Full-text available
The importance of keystone species is often defined based on a single type of interaction (e.g., keystone predator). However, it remains unclear whether this functional importance extends across interaction types. We conducted a global meta-analysis of interaction networks to examine whether species functional importance in one niche dimension is m...
Article
1. Trophic relationships have inherent spatial dimensions associated with the sites where species interactions, or their delayed effects, occur. Trophic networks among interacting species may thus be coupled with spatial networks linking species and habitats whereby animals connect patches across the landscape thanks to their high mobility. This tr...
Article
Full-text available
Indirect interactions among plant species mediated by frugivorous animals can be central to population and community dynamics, since the successful seed dispersal of species may depend on facilitative or competitive interactions with heterospecific plants. Yet, empirical evidence on these interactions is very scarce and mostly available at small sp...
Article
Full-text available
Understanding how ecological communities are structured is a major goal in ecology. Ecological networks representing interaction patterns among species have become a powerful tool to capture the mechanisms underlying plant-animal assemblages. However, these networks largely do not account for inter-individual variability and thus may be limiting ou...
Data
Details of the species of plants and bees sampled, and members of the trait nodes
Data
Bee-plant interactions and trait measurements used in our analysis
Data
R code for constructing the trait-based networks
Article
Full-text available
Frugivory in lizards is often assumed to be constrained by body size; only large individuals are considered capable of consuming fruits, with the potential of acting as seed dispersers. However, only one previous study has tested the correlation of frugivory with body and head size at an archipelago scale across closely related species. All nine la...
Article
Full-text available
Life on oceanic islands deviate in many ways from that on the mainland. Their biodiversity is relatively poor and some groups are well-represented, others not, especially not insects. A scarcity of insects forces birds to explore alternative food, such as nectar and fruit. In this way, island birds may pollinate and disperse seed to an extent unsee...
Article
Full-text available
Seed dispersal and seedling recruitment are crucial phases in the life cycle of all spermatophyte plants. The net contribution of seed dispersers to plant establishment is known as seed dispersal effectiveness (SDE) and is defined as the product of a quantitative (number of seeds dispersed) and a qualitative (probability of recruitment) component....
Article
Capsule: The diet of Yellow-legged Gulls Larus michahellis on an oceanic island, surrounded by deep waters without a wide shelf, was mainly composed of terrestrial invertebrates.Aims: To study the trophic ecology of Yellow-legged Gulls on an island surrounded by deep waters, to quantify the importance of terrestrial prey items and their availabilit...
Article
Seed dispersal, together with pollination, are two key services provided by animals to plants. On oceanic islands, where strong isolation limits the arrival of medium and large sized mammals (Gorman 1979), tortoises, iguanas or lizards often undertake an important ecological role as dispersers (Olesen & Valido 2003). Furthermore, the reported niche...
Article
Capsule: The diet of Yellow-legged Gulls Larus michahellis on an oceanic island, surrounded by deep waters without a wide shelf, was mainly composed of terrestrial invertebrates. Aims: To study the trophic ecology of Yellow-legged Gulls on an island surrounded by deep waters, to quantify the importance of terrestrial prey items and their availabili...
Article
Full-text available
Colonization across the Galápagos Islands by the carpenter bee (Xylocopa darwini) is reconstructed based on distribution of mitochondrial haplotypes (cytochrome oxidase II (COII) sequences) and haplotype lineages. A total of 12 haplotypes were found in 118 individuals of X. darwini. Phylogenetic and phylogeographic analyses suggest historical isola...
Article
Full-text available
As a working hypothesis, we examined evidence for the former presence of a climacic woodland of Juniperus cedrus above the pine forest in the high elevation area of Tenerife (Canary Islands), which would indicate that the current dominant vegetation (endemic Spartocytisus supranubius scrub) may not be pristine. The main causes of the great regressi...
Article
We used plastid sequences (trnL, trnL-trnF, petN-psbM and trnT-trnL) to infer the phylogenetic relationships and inter-island connections of the Canarian Juniperus cedrus, and AFLP fingerprints to assess its genetic diversity patterns. Maximum Likelihood, Maximum Parsimony and Bayesian methods suggest independent colonization events for the three M...
Article
Full-text available
We report the development of 13 microsatellite markers (SSR) for the Canarian endemic juniper, Juniperus cedrus. Evaluated in a set of 28 individuals sampled on the island of Tenerife, all markers showed polymorphism and displayed 56 alleles. The number of alleles ranged from 2 to 8, with an average of 4.31 alleles per locus. This set of SSR marker...
Data
Full-text available
Taxon names, geographical area, locality, voucher information and GeneBank accession numbers for the Juniperus samples included in the phylogenetic analysis. Coding numbers as in Fig. 2. Voucher abbreviations: BR: B. Rumeu collection numbers, as coded in the DNA Bank at the Jardín Botánico Canario ‘Viera y Clavijo’-Unidad Asociada CSIC; JM: J. Mart...
Data
Plant material used for sequencing petN-psbM, trnS-trnG and trnT-trnL from 72 samples. N is the number of samples collected in each locality, voucher source indicates each tree sampled and H is the haplotype found. Voucher abbreviations: BR: B. Rumeu collection numbers, as coded in the DNA Bank at the Jardín Botánico Canario ‘Viera y Clavijo’- Unid...
Article
Full-text available
This article evaluates the seed dispersal systems of two congeneric and endemic fleshy-fruited plants in the context of two relatively close oceanic archipelagos. For this purpose, representative populations of the endangered junipers Juniperus cedrus in the Canary Islands and Madeira, and Juniperus brevifolia in the Azores were studied. Despite bo...
Article
Full-text available
SNPs from nrDNA and petN-psbM (cpDNA) were analyzed of Juniperus phoenicea from Madeira, Canary Islands, Morocco, and El Penon, Spain along with J. p. var. turbinata from the Tarifa sand dunes, Spain. The analysis of the 18 SNPs revealed that the Macaronesian and Moroccan plants are identical or nearly so to J. p. var. turbinata and quite different...
Article
Full-text available
The volatile leaf oils of J. cedrus from Madeira, Gran Canaria, La Gomera, La Palma and Tenerife were analyzed and the compositions reported and compared with J. oxycedrus, France. The oil of J. cedrus from Madeira Island was moderately high in α-pinene (24.9%), limonene (10.9%), β-phellandrene (7.3%), δ-3-carene (5.6%), (E)-caryophyllene (4.3%), w...
Article
Full-text available
Analyses of nrDNA and petN-PsbM sequence data, combined with leaf terpenes data, revealed that putative J. cedrus from Madeira is as distinct from J. cedrus of the Canary Islands as it is from J. oxycedrus. These data support the recognition of the Madeira juniper at the specific level, J. maderensis (Menezes) R. P. Adams comb. et stat. nov. Phytol...
Article
Full-text available
Although the Ring Ouzel has been considered accidental in the Canary Islands, it has been observed for the last five years in the high mountain zone of Tenerife (Canary Islands), showing it to be a regular winter visitor. Its interaction with female Juniperus cedrus cones and seeds was studied by analysing its wintering diet during January–April 20...
Article
Full-text available
Phenology and female cone characteristics of the two endemic cedars (Juniperus cedrus and J. brevifolia) from the Macaronesian islands were studied. Despite their closely taxonomic affinity and their evolution under insular conditions, different trends were recorded. Mature J. cedrus female cones were present throughout the year, while those from J...
Article
Full-text available
We analyzed 621 lizard fecal pellets to assess the diet of the endemic lizard Gallotia galloti (Lacertidae) throughout one year in the thermophilous scrubland, the most threatened habitat in the Canary Islands. Indicating the importance of frugivory, 98.1% of pellets contained seeds from fleshy-fruited plant species (8,028 seeds in total), and the...
Article
Full-text available
In 199 pellets analyzed a total of 7 460 prey items were counted, 96.2% of which were arthropods. Aeshnidae larvae (Odonata) made up 66.1% of the total prey items and were the main invertebrate group. Vertebrates constituted 3.8%, with reptiles and mammals being the main prey of this type (1.8% each). Despite the small size of the invertebrates, th...

Network

Cited By