Margarita Florencio

Estación Biológica de Doñana

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Carmen Díaz‐Paniagua

Estación Biológica de Doñana

Laura Serrano

University of Córdoba

Carola Gómez‐Rodríguez

Universidade de Santiago de Compostela

Rocío Fernández‐Zamudio

Estación Biológica de Doñana

Paulo A. V. Borges

Universidade dos Açores

Pablo García Murillo

Universidad de Sevilla

Patricia Siljeström

Instituto de Recursos Naturales y Agrobiología de Sevilla

Pedro Cardoso

Finnish Museum of Natural History

Lucas Lamelas-López

Universidade dos Açores

Alexandre Portheault

Estación Biológica de Doñana

Cooperative Institutions

Universidade dos Açores

Consejo Superior de Investigaciones Científicas

Estación Biológica de Doñana

University of Lisbon

Universidad de La Laguna

Centre National de la Recherche Scientifique

Universidad de Alcalá

Universidad de Sevilla

Sustainability Institute

Center for Health and Gender Equity

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The temporary ponds of Doñana: conservation value and present tretas.

Carmen Díaz‐Paniagua Rocío Fernández‐Zamudio Margarita Florencio Pablo García Murillo J. M. Gómez-Rodríguez

Value (mathematics)

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Citations (1)

Inter‐annual variability in amphibian assemblages: implications for diversity assessment and conservation

Aquatic Conservation Marine and Freshwater Ecosystems (2010)

Carola Gómez‐Rodríguez Carmen Díaz‐Paniagua Javier Bustamante Alexandre Portheault Margarita Florencio

Abstract Diversity assessments and conservation management should take into account the dynamic nature of populations and communities, particularly when they are subject to highly variable and unpredictable environmental conditions. This study evaluates the inter‐annual variability in the assemblage composition (temporal turnover) of an amphibian community breeding in a highly dynamic habitat, a Mediterranean temporary pond system, during a 4‐year period. A comprehensive framework is provided to evaluate temporal turnover from data of a differing nature (species richness, presence/absence and relative abundance) and, especially, to discern variation in richness (species loss) from changes in the identity or abundance of species (species replacement). Results show that the pond amphibian assemblages in Doñana National Park exhibited high inter‐annual variability during the study period, both in the number of species, species identity and their relative abundance. This result provides evidence for the inadequacy of surveys conducted only in one breeding season to characterize the species assemblage associated with a given pond. Besides, it suggests that a given pond offers different breeding opportunities over time, being suitable for different species depending on the year. This alternation will contribute to the medium‐term preservation of all species in the assemblage. It is highly relevant to preserve the natural dynamism and spatial variability of temporary pond systems, which will favour the conservation of populations through their intrinsic variability. Copyright © 2010 John Wiley & Sons, Ltd.

Temporal scales

Assemblage (archaeology)

10.1002/aqc.1134

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Citations (31)

Defining the importance of landscape metrics for large branchiopod biodiversity and conservation: the case of the Iberian Peninsula and Balearic Islands

Hydrobiologia (2017)

Jordi Sala Stéphanie Gascón David Cunillera‐Montcusí Miguel Alonso Francisco Amat

Peninsula

Balearic islands

10.1007/s10750-017-3293-1

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Citations (11)

The exotic weevil Stenopelmus rufinasus Gyllenhal, 1835 (Coleoptera: Curculionidae) across a “host-free” pond network

Limnetica (2015)

Margarita Florencio Rocío Fernández‐Zamudio David T. Bilton Carmen Díaz‐Paniagua

The exotic weevil Stenopelmus rufinasus Gyllenhal, 1835 (Coleoptera: Curculionidae) across a "host-free" pond network The presence of the exotic weevil Stenopelmus rufinasus (Coleoptera: Curculionidae) is closely related to the occurrence of the exotic red water fern, Azolla filiculoides.In this paper, we present the first records of S. rufinasus in Doñana National Park (SW Spain), based on sampling of macroinvertebrates in 91 temporary ponds, including monthly samples of 22 ponds, during two successive years (2005)(2006)(2007).The exotic weevil was present in 21% of the sampled ponds where the host plant, A. filiculiodes, was not detectable.Because A. filiculoides can reach high densities in an adjacent area of marsh, we suggest that the occurrence of the exotic weevil in these ponds is a consequence of dispersal from nearby marshes.Our study demonstrates that S. rufinasus adults can occur at relatively high densities in ponds where the host plant is not present, suggesting that such apparently "host-free" sites may act as stepping stones for the spread of this species.

10.23818/limn.34.07

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Citations (9)

The effect of the sampling scale on zooplankton community assessment and its implications for the conservation of temporary ponds in south‐west Spain

Aquatic Conservation Marine and Freshwater Ecosystems (2006)

Khalid Fahd Margarita Florencio Claudia Keller Laura Serrano

Abstract The zooplankton (rotifer and microcrustacean) assemblages of temporary ponds in the Doñana National Park (south‐west Spain) have been compared in two surveys of contrasting scales that resulted in the same number of samples: an extensive survey of 36 ponds sampled in May 1998 (or widespread survey) and a survey of nine ponds sampled four times over 2 years (or cumulative survey). The total number of microcrustacean and rotifer taxa was larger in the cumulative survey (43 and 41 taxa, respectively) than in the widespread survey (39 and 34, respectively). Crustacean assemblages became less alike throughout the cumulative survey. The presence of invertebrates (Coleoptera, Odonata, Heteroptera and crayfish) and aquatic vertebrates (fish and salamanders) was recorded as an estimate of potential predator impact on zooplankton. Several pond features (water depth, conductivity, pH, chlorophyll a concentration, distance to the nearest permanent pond and to the marsh) were also measured in both surveys. A combination of these environmental factors was more strongly related to the similarity matrices derived from the zooplankton assemblages of the cumulative survey (Rho=0.7) than to those of the widespread survey (Rho<0.4). The distance of ponds to the marsh was an important factor in explaining this correlation as well as the strongest factor in the ordination of crustacean assemblages following a CCA. Predation by exotic fish in long‐hydroperiod ponds where overflow drains to the nearby marsh (fish source) is the mechanism likely to explain the changes in crustacean composition recorded in the cumulative survey. The cumulative survey was more suitable for the study of zooplankton diversity as it rendered a higher number of taxa and gave more insight into the mechanisms that explain taxon richness. Thus, conservation strategies in temporary habitats require a scale of observation that includes long temporal changes. Copyright © 2006 John Wiley & Sons, Ltd.

10.1002/aqc.781

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Citations (24)

Annotated checklist of aquatic beetles (Coleoptera) and true bugs (Heteroptera) in the Azores Islands: new records and corrections of colonization status

Zootaxa (2017)

Lucas Lamelas-López Pedro M. Raposeiro Paulo A. V. Borges Margarita Florencio

In comparison with other Macaronesian archipelagos, Azorean freshwater macroinvertebrates are characterized by a smaller list of species at the archipelago regional scale. Although knowledge of the freshwater fauna of the Azores has improved in recent years through the implementation of the "Water Framework Directive", we are still far from having a complete inventory and even further from knowing the precise distribution and biology of each species. The lack of knowledge about Azorean freshwater species is coupled with the vulnerability of their habitats to anthropogenic disturbances and the introduction of non-native species. In contributing to overcome Wallacean and Hutchinsonian biodiversity shortfalls, we here provide expanded knowledge on the distribution and biology of the freshwater species of Coleoptera and Heteroptera in the Azores. We compile data from various fieldwork performed between 2006 and 2014, encompassing four islands in the archipelago. We detected new records of two aquatic Heteroptera species (belonging to the families Corixidae and Notonectidae) and six of aquatic Coleoptera (belonging to the families Dytiscidae, Gyrinidae, Hydrophilidae and Hydraenidae) in these islands, and also a new record (Enochrus fuscipennis) for the Azorean archipelago. We also suggest that the introduced colonization status of three Coleoptera species of the family Hydrophilidae should be reformulated as possibly native, with implications for conservation.

Hydrophilidae

Dytiscidae

Archipelago

10.11646/zootaxa.4353.1.7

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Citations (73)

The role of plant fidelity and land-use changes on island exotic and indigenous canopy spiders at local and regional scales

Biological Invasions (2016)

Margarita Florencio François Rigal Paulo A. V. Borges Pedro Cardoso Ana M. C. Santos

Colonisation

Native plant

Archipelago

10.1007/s10530-016-1162-x

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Citations (19)

The Colonisation of Exotic Species Does Not Have to Trigger Faunal Homogenisation: Lessons from the Assembly Patterns of Arthropods on Oceanic Islands

PLoS ONE (2015)

Margarita Florencio Jorge M. Lobo Pedro Cardoso Mário Almeida‐Neto Paulo A. V. Borges

Human-caused disturbances can lead to the extinction of indigenous (endemic and native) species, while facilitating and increasing the colonisation of exotic species; this increase can, in turn, promote the similarity of species compositions between sites if human-disturbed sites are consistently invaded by a regionally species-poor pool of exotic species. In this study, we analysed the extent to which epigean arthropod assemblages of four islands of the Azorean archipelago are characterised by nestedness according to a habitat-altered gradient. The degree of nestedness represents the extent to which less ubiquitous species occur in subsets of sites occupied by the more widespread species, resulting in an ordered loss/gain of species across environmental or ecological gradients. A predictable loss of species across communities while maintaining others may lead to more similar communities (i.e. lower beta-diversity). In contrast, anti-nestedness occurs when different species tend to occupy distinct sites, thus characterising a replacement of species across such gradients. Our results showed that an increase in exotic species does not promote assemblage homogenisation at the habitat level. On the contrary, exotic species were revealed as habitat specialists that constitute new and well-differentiated assemblages, even increasing the species compositional heterogeneity within human-altered landscapes. Therefore, contrary to expectations, our results show that both indigenous and exotic species established idiosyncratic assemblages within habitats and islands. We suggest that both the historical extinction of indigenous species in disturbed habitats and the habitat-specialised character of some exotic invasions have contributed to the construction of current assemblages.

Nestedness

Colonisation

Extinction (optical mineralogy)

Archipelago

10.1371/journal.pone.0128276

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Citations (24)

Larval development and growth ratios of Odonata of the Azores

Limnology (2016)

Lucas Lamelas-López Margarita Florencio Paulo A. V. Borges Adolfo Cordero‐Rivera

10.1007/s10201-016-0490-y

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