Sissi Lozada-GobilardTel Aviv University | TAU · School of Plant Sciences and Food Security
Sissi Lozada-Gobilard
Dr. rer. nat.
I am interested in plant ecology and evolution. In particular, plant-pollinator interaction and flower evolution.
About
26
Publications
8,048
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110
Citations
Introduction
Evolution of flower size in Iris
Additional affiliations
January 2020 - September 2020
Position
- PostDoc Position
Description
- Data analyses for conservation project of Minuartia smejkalii
January 2016 - October 2019
Education
October 2013 - December 2015
February 2008 - December 2012
Publications
Publications (26)
Seed dispersal plays an important role in population dynamics in agricultural ecosystems, but the effects of surrounding vegetation height on seed dispersal and population connectivity on the landscape scale have rarely been studied. Understanding the effects of surrounding vegetation height on seed dispersal will provide important information for...
The decline of bees compromises pollination services and connectivity of plant populations, both wild and domesticated. The aim of this study was to evaluate bee diversity in natural wetland island-like habitats-called kettle holes-embedded in an agricultural landscape and its relationship with spatial parameters (kettle-hole area, isolation, neigh...
Background
Seed dispersal plays an important role in population dynamics in agricultural ecosystems, but the effects of surrounding vegetation height on seed dispersal and population connectivity on the landscape scale have rarely been studied. Understanding the effects of surrounding vegetation height on seed dispersal will provide important infor...
In plants, long-distance dispersal is both attenuated and directed by specific movement vectors, including animals, wind, and/or water. Hence, movement vectors partly shape metapopulation genetic patterns that are, however, also influenced by other life-history traits such as clonal growth. We studied the relationship between area, isolation, plant...
The species-rich flora of Madagascar is well known for a range of unusual floral ecologies. One example is Impatiens section Trimorphopetalum with its unique combination of floral traits: small, spur-less, cup- or lip-shaped, greenish or brownish flowers. So far no hypotheses on floral function or pollination of this peculiar group have been propos...
Spontaneous hybridization in ex situ conservation facilities could potentially contaminate endangered plant species destined for the reintroduction into the wild. Despite the general recognition of the importance of such danger, studies exploring the consequences of hybridization including subsequent performance of the hybrids in comparison to the...
In the present study we revised the genus Hypseocharis in Bolivia and Peru. A total number of 105 herbarium specimens were revised to evaluate the morphological diversity across the range of the genus. In a subset of 24 complete individuals a multivariate morphometric analysis was performed to evaluate the morphological characters historically used...
In the present study we revised the genus Hypseocharis in Bolivia and Peru. A total number of 105 herbarium specimens were revised to evaluate the morphological diversity across the range of the genus. In a subset of 24 complete individuals a multivariate morphometric analysis was performed to evaluate the morphological characters historically used...
Organismal movement is ubiquitous and facilitates important ecological mechanisms that drive community and meta-community composition and hence biodiversity. In most existing ecological theories and models in biodiversity research, movement is represented simplistically, ignoring the behavioural basis of movement and consequently the variation in b...
Organismal movement is ubiquitous and facilitates important ecological mechanisms that drive community and metacommunity composition and hence biodiversity. In most existing ecological theories and models in biodiversity research, movement is represented simplistically, ignoring the behavioural basis of movement and consequently the variation in be...
Meta‐communities of habitat islands may be essential to maintain biodiversity in anthropogenic landscapes allowing rescue effects in local habitat patches. To understand the species‐assembly mechanisms and dynamics of such ecosystems, it is important to test how local plant‐community diversity and composition is affected by spatial isolation and he...
Meta‐communities of habitat islands may be essential to maintain biodiversity in anthropogenic landscapes allowing rescue effects in local habitat patches. To understand the species‐assembly mechanisms and dynamics of such ecosystems, it is important to test how local plant‐community diversity and composition is affected by spatial isolation and he...
Species assembly from a regional pool into local metacommunities and how they colonize and coexist over time and space is essential to understand how communities response to their environment including abiotic and biotic factors. In highly disturbed landscapes, connectivity of isolated habitat patches is essential to maintain biodiversity and the e...
Research rationale
Pollen/ovule (P/O) ratios are often used as proxy for breeding systems. Here, we investigate the relations between breeding systems and P/O ratios, pollination syndromes, life history and climate zone in Balsaminaceae.
Methods
We conducted controlled breeding system experiments (autonomous and active self‐pollination and outcros...
Pollination syndromes and their predictive power regarding actual plant-animal interactions have been controversially discussed in the past. We investigate pollination syndromes in Balsaminaceae, utilizing quantitative respectively categorical data sets of flower morphometry, signal and reward traits for 86 species to test for the effect of differe...
Clustering received from multiscale bootstrap resampling.
Numbers represent bootstrap support of the backbone only. Colors represent pollination syndromes.
(DOC)
Kruskal-Wallis tests for multiple comparisons of several flower morphometry, signal and rewards traits between different pollination syndromes defined by the cluster analysis.
Note that Large bee 1 (= Impatiens glandulifera) and Moth (= I. sodenii) was not included into the analyses due to too small sampling sizes.
(DOC)
Definitions for the categorisation of the flower morphometry, signal and reward traits.
(DOC)
Pollinator observations in the natural habitat for the studied Balsaminaceae species.
(DOC)
Results of the Spearman correlation analyses between flower morphometry, signal and reward traits.
(DOC)
Analysed species with accession and herbarium numbers–these numbers are identical since we took herbarium specimen only from accessions of the Botanical Gardens Bonn—as well as morphometry and reward traits.
Note that the large number of unidentified Impatiens species is due to the large number of undescribed species in this genus (pers. obs. E. Fi...
The population structure of the Totaí palm (Acrocomia aculeata) was evaluated regarding the presence of cattle in forests and savannas of five locations in San José de Chiquitos (Santa Cruz) and Trinidad (Beni), Bolivia. Three plots of 50 x 20 m were settled down. For palms 26 cm tall or higher, the following measures were recorded: plant height, D...
Questions
Questions (3)
I am working with three aquatic plant species occuring in island-like habitat (small water bodies) scattered in an intensive agricultural landscape. My main question is to see if there are genetic differences in their populations and how much this is explained by space and by environment. I intend to use RDA analysis (tipical for metacomunnities) but instead of a sp based matrix, use my microsatellites dataset. However I am not quite sure how exaclty I can do this. Please I would appreciate some help, comments or further ideas. Thank you!
Projects
Projects (2)
BioMove RTG links innovative individual research projects that overcome the gap between movement ecology and biodiversity research, employing a joint conceptual framework. We investigate how ongoing changes in climate and land use, such as habitat loss and fragmentation through agricultural practises, influence movement processes of various organisms and thereby biodiversity patterns.
www.biomove.org
The main objective of my project is to identify the main factors affecting the connectivity of metapopulations of 7 typical wetland species among kettle holes occurring in a agricultural landscape at north of Brandenburg.
