OBSERVATIONS ON THE LIFE CYCLE OF THE SYMBIONT-BEARING FORAMINIFER AMPHISTEGINA LOBIFERA LARSEN, AN INVASIVE SPECIES IN COASTAL ECOSYSTEMS OF THE AEGEAN SEA (GREECE, E. MEDITERRANEAN)

2012 ◽  
Vol 42 (2) ◽  
pp. 143-150 ◽  
Author(s):  
M. V. Triantaphyllou ◽  
M. D. Dimiza ◽  
O. Koukousioura ◽  
P. Hallock
Keyword(s):  
Invasive Species ◽  
Life Cycle ◽  
Aegean Sea ◽  
Coastal Ecosystems

scholarly journals Aliens in the Aegean – a sea under siege (ALAS)

2020 ◽  
Vol 6 ◽  
Author(s):  
Stelios Katsanevakis ◽  
Konstantinos Tsirintanis ◽  
Maria Sini ◽  
Vasilis Gerovasileiou ◽  
Nikoletta Koukourouvli
Keyword(s):  
Remote Sensing ◽  
Invasive Species ◽  
High Resolution ◽  
Alien Species ◽  
Invasive Alien Species ◽  
Aegean Sea ◽  
Ecological Impacts ◽  
Cumulative Impacts ◽  
Cumulative Impact ◽  
Marine Habitats

ALAS aims to fill knowledge gaps on the impacts of marine alien species in the Aegean Sea, and support marine managers and policy makers in prioritizing mitigation actions. The project will focus on under-studied alien-native interactions, priority and vulnerable habitats (such as shallow forests of canopy algae and underwater caves), and apply a multitude of approaches. It will apply a standardized, quantitative method for mapping Cumulative IMpacts of invasive Alien species on marine ecosystems (CIMPAL), according to which cumulative impact scores are estimated on the basis of the distributions of invasive species and ecosystems, and both the reported magnitude of ecological impacts and the strength of such evidence. Towards that direction, ALAS will improve our knowledge base and compile the needed information to estimate CIMPAL by (1) conducting a series of field experiments and surveys to investigate the impacts of selected invasive alien species on marine habitats, (2) producing high-resolution habitat maps in the coastal zone, refining the results of previous research efforts through fieldwork, remote sensing and satellite imaging, (3) producing species distribution models for all invasive species, based on extensive underwater surveys for the collection of new data and integrating all existing information. ALAS will incorporate skills and analyses in novel ways and provide high-resolution results at a large scale; couple classic and novel tools and follow a trans-disciplinary approach, combining knowledge from the fields of invasion biology, conservation biology, biogeography, fisheries science, marine ecology, remote sensing, statistical modelling; conduct for the first time in the Aegean Sea a comprehensive, high-resolution analysis of cumulative impacts of invasive alien species; and report results in formats appropriate for decision-makers and society, thus transferring research-based knowledge to inform and influence policy decisions.

scholarly journals Development, application and evaluation of a 1-D full life cycle anchovy and sardine model for the North Aegean Sea (Eastern Mediterranean)

PLoS ONE ◽  
2019 ◽  
Vol 14 (8) ◽  
pp. e0219671 ◽  
Author(s):  
Athanasios Gkanasos ◽  
Stylianos Somarakis ◽  
Kostas Tsiaras ◽  
Dimitrios Kleftogiannis ◽  
Marianna Giannoulaki ◽  
...  
Keyword(s):  
Life Cycle ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
The North ◽  
Full Life Cycle ◽  
North Aegean ◽  
Full Life ◽  
North Aegean Sea ◽  
Development Application

scholarly journals Simple rules to contain an invasive species with a complex life cycle and high dispersal capacity

2012 ◽  
Vol 49 (1) ◽  
pp. 52-62 ◽  
Author(s):  
Jean-Baptiste Pichancourt ◽  
Iadine Chadès ◽  
Jennifer Firn ◽  
Rieks D. van Klinken ◽  
Tara G. Martin
Keyword(s):  
Invasive Species ◽  
Life Cycle ◽  
Complex Life Cycle ◽  
Dispersal Capacity ◽  
High Dispersal ◽  
Simple Rules

scholarly journals Evidence for a possible life-cycle association between <i>Syracosphaera protrudens</i> (heterococcolithophore) and <i>Syracosphaera pulchra</i> HOL <i>pirus</i>-type (holococcolithophore)

2009 ◽  
Vol 28 (1) ◽  
pp. 1-6 ◽  
Author(s):  
M. V. Triantaphyllou ◽  
M. D. Dimiza ◽  
E. Malinverno ◽  
J. R. Young
Keyword(s):  
Life Cycle ◽  
Eastern Mediterranean ◽  
Aegean Sea ◽  
Current Understanding

Abstract. An apparently unambiguous combination coccosphere from the Eastern Mediterranean (Aegean Sea, Greece) is documented involving Syracosphaera protrudens Okada &amp; McIntyre, 1977 and Syracosphaera pulchra Lohmann, 1902 HOL pirus-type. This finding is difficult to interpret in terms of the current understanding of Syracosphaera taxonomy and adds evidence to the hypothesis of a distinctly complex Syracosphaera pulchra life cycle.

scholarly journals The effect of Achene heteromorphism on progeny traits in the shaggy soldier [Galinsoga ciliata (Rafin) S. F. Blake]

2012 ◽  
Vol 63 (2) ◽  
pp. 51-56 ◽  
Author(s):  
Magdalena Kucewicz ◽  
Ewa Gojło ◽  
Anna Kowalska
Keyword(s):  
Invasive Species ◽  
Life Cycle ◽  
Growth Rates ◽  
Crop Production ◽  
Growth Stage ◽  
Initial Growth ◽  
Annual Plant ◽  
Flowering Stage ◽  
The Individual ◽  
Galinsoga Ciliata

The shaggy soldier [<i>Galinsoga ciliata</i> (Rafin) S. F. Blake], family Asteraceae] is an invasive species that poses a growing threat to crop production. This annual plant produces heteromorphic achenes in a capitulum type inflorescence. The objective of this study was to compare selected morphological and phenological parameters and the success of generative reproduction in plants developed from peripheral and central achenes of the capitulum. The somatic variability of <i>G. ciliata</i> diaspores contributed to differences in the growth rates, development and fertility of the resulting populations. The progeny of central diaspores developed at a slower rate than the individuals derived from peripheral achenes, but at the end of their life cycle, the offspring of dimorphic achenes formed homogenous groups as regards height values. On average, the initial phenophases of <i>G. ciliata</i> plants derived from central achenes began one day later, and they entered the flowering stage eight days later than the individuals developed from peripheral seeds. At the initial growth stage (experimental day 65 to 83), the progeny of central achenes produced fewer capitula. On day 133, the individual fertility of the plants derived from central diaspores was 10% higher on average in comparison with the offspring of peripheral achenes.

Conotrachelus nenuphar (plum curculio).

2021 ◽  
Author(s):  
Charles Vincent
Keyword(s):  
Invasive Species ◽  
Life Cycle ◽  
North America ◽  
Rocky Mountains ◽  
Host Plants ◽  
Stone Fruit ◽  
Geographical Range ◽  
Conotrachelus Nenuphar ◽  
Plum Curculio ◽  
Wild Host

Abstract The plum curculio, C. nenuphar, is native to North America and restricted to east of the Rocky Mountains. Although it feeds on several wild host plants and several species of cultivated pome and stone fruit, C. nenuphar has not extended its geographical range over the years. Given its life-cycle (larvae complete their development and diapause in the soil), it is not likely to be a global invasive species. It can be considered as a local invader, as it will invade any new orchard plant (apple: Malus; plum: Prunus; peach: Prunus) and thereby become a serious pest of these agricultural habitats.

Chrysomyxa rhododendri (European rhododendron rust).

2021 ◽  
Author(s):  
Keyword(s):  
Invasive Species ◽  
Life Cycle ◽  
New Zealand ◽  
Rust Fungus ◽  
Ornamental Plants ◽  
Sexual Stage ◽  
The Usa ◽  
Asexual Form ◽  
The Uk ◽  
Accidental Introduction

Abstract C. rhododendri is a heteroecious rust fungus; an obligate parasite completing stages of its life cycle on different plants. Mating of haploid strains occurs on species of Picea, followed by the production of asexual aeciospores that infect Rhododendron species. Another asexual form producing urediniospores occurs on Rhododendron, followed by the production of teliospores (the sexual stage). All stages are known from Europe. The fungus was reported in 1954 on Rhododendron in the northwestern USA, but the aecial form has not been found in North America. The fungus is a Regulated Pest for the USA; it has been introduced into the UK, New Zealand and Australia. As an invasive species, this rust is damaging on species of Picea and Rhododendron. As latent infections on Rhododendron can be overlooked, accidental introduction of the rust may occur through the importation of these popular ornamental plants (Savile, 1973).

scholarly journals Solar saltworks' wetland function

2013 ◽  
Vol 11 (1) ◽  
pp. 49-57
Keyword(s):  
Production Process ◽  
Bird Species ◽  
Aegean Sea ◽  
Chemical Substance ◽  
Coastal Ecosystems ◽  
Solar Salt ◽  
Saline Wetlands ◽  
Solar Saltworks ◽  
Northern Aegean Sea ◽  
International Conventions

Salt, the world’s best-known mineral, is the chemical substance most related to human civilization history. Apart from his significance for the creation of life on the planet it has been used as main commodity for centuries. Man produces salt by solar evaporation since the dawn of human civilization. Nevertheless, recognition of the unique coastal ecosystems that developed in parallel with the Solar Saltworks production process evolution is often lacking. The environmental uniqueness of Solar Saltworks, particularly current operations, is based on the fact that they are integrated, constructed coastal ecosystems, where regular and hyper saline environments coexist and establish high significant shelters for wildlife. The basic steps of the Solar Salt Production Process Evolution are identified. The biological process that develops along with the salinity vector in the evaporating ponds and crystallizers produces food for many kinds of birds. Hundreds of bird species depend on Solar Saltworks ecosystem to feed and/or nest. Many of them have been identified as endangered species or protected by European or International conventions. The operation of the Coastal Saline Wetlands is outlined and compared with Solar Saltworks ecosystem. We emphasize on the case of “Aliki” lake, which is a natural saline coastal wetland located in Lemnos, a Northern Aegean Sea Island in Greece.

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