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After seeing many BioAreas of other learners, i compared mine with them and i noticed some similarities and differences. Most of the learners done a very good work and used really nice photos of species, maps of their BioAreas,  case studies. Also, some of them supported their opinions by adding lots of sources or videos about biodiversity. Moreover, some of the colleagues selected to do a brief summary and preffered not to use many photos or videos in their padlets. In my padlet i preffered to use some photos of the species that exist in my BioArea and to give examples of their ecological environment.

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THEME 3- Signs of climate change in Greece

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THEME 3- Signs of climate change in Greece

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Some signs of climate change in Greece are obvious. These are changes in species diversity due to the soil, water and air pollution, the invasion of alien species and the increase of wildfires. In the future climate change is expected to further intensify the loss and the degradation of wetlands and also the risk of fires in the country. Moreover, climate change will include rising sea levels, changes in the frequency and intensity of storms, erosion and flooding. Moreover, is expected to degrade the marine ecosystems.
Source: CBD Fifth National Report of Greece.

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Acipenser naccarii

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THEME 3- IUCN Red List of Threatened Species and  invasions of alien species in Greece

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THEME 3- IUCN Red List of Threatened Species and  invasions of alien species in Greece

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According to the IUCN Red list of Threatened Species, in Greece some species are listed as critically endangered, endangered or vulnerable. Some critically endangered species of Greece are Acipenser naccarii, Dipturus batis, Parnassiana parnassica, Allium iatrouinum, Vanellus gregarius. Also, some endangered are Aldrovanda vesiculosa, Oropodisma chelmosi, Isophya hospodar. Some extinct species are Zonites siphnicus and Graecoanatolica macedonica.
Source: https://www.iucnredlist.org/
Alien species in Greece:
According to the Global invasive species database,  some of the following alien species are found in Greece's ecosystem : Acacia saligna (tree),  Capra hircus (mammal), Ceratocystis platani (fungus), Gambusia affinis (fish), Harmonia axyridis (insect). The list of the alien species is even bigger if you check at http://issg.org/database/species/search.asp?st=sss&sn=&rn=Greece&ri=19452&hci=-1&ei=-1&fr=1&sts=&lang=EN .

Allium iatrouinum

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THEME 3- Habitat loss, habitat fragmentation or habitat degradation in Greece and wildlife overexploitation

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THEME 3- Habitat loss, habitat fragmentation or habitat degradation in Greece and wildlife overexploitation

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In Greece the habitat loss, habitat fragmentation or habitat degradation are the most significant threats to species. Also,  activities from the agricultural expansion like farming and ranching contribute to the problem. Moreover, major threats include urbanization, pollution or the introduction of allien species. But specifically, the main causes for the habitat loss and fragmentation of Greece are the wildfires, pollution, infrastructures and urbanization.
Wildlife overexploitation: In Greece the wildlife overexploitation for the food industry, pet market, traditional medicine or the fashion industry is a typical phenomenon. The main overexploitation of natural resources is observed in Greek coastal zones from the human activities. In addition, unique aromatic and medicinal plants of the country (Sideritis spp. or Origanum dictamnus) are overexploited, putting at risk the limited natural populations.
Source: CBD Fifth National Report of Greece.

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THEME 2- SIMPLIFIED TROPHIC PYRAMID OF GREECE

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THEME 2- SIMPLIFIED TROPHIC PYRAMID OF GREECE

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Niche partitioning

Tyto alba
Tyto alba is a barn owl which is a nocturnal predator. It prefers small mammals such as mice, voles, shrews, rats, hares and rabbits. It may also eats some small birds. Barn owls begin hunting alone after sunset.
Bubo bubo
Bubo bubo is an eagle owl. Its food includes rats, mice, voles, beetles and even large prey like deer fawns and foxes. Bubo bubo is also a nocturnal hunter and it has various hunting techniques like hunting in open spacious locations and with silent flights.
Source : https://animaldiversity.org/

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●  The ecological niche of two characteristic animals
Podarcis peloponnesiacus

It is an endemic species in the Peloponnese of southern Greece. Its natural habitats are Mediterranean-type shrubby vegetation, rocky areas, arable land, pastureland, plantations, and rural gardens. Their food consists mainly of invertebrates.

(Source: Wikipedia)

Testudo hermanni (Hermann's tortoise)

Hermann's tortoises prefer inland and coastal forest habitats.  Due to habitat destruction within their range, they are also found in habitats such as dry, hilly grasslands or farmland. They are herbivores and their food includes grasses, flowers or some fruits.

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●  Two parasitic organisms
Viscum album
Viscum album is a parasitic plant that is often found on various tree species in Greece such as firs (Abies genus), poplars (Populus), willows (Salix) and rarely in oaks (Quercus) and chestnuts (Castanea, Aesculus).
Cuscuta atrans
Cuscuta atrans is a parasitic plant and an endemic species of Lefka Ori.
Viscum album

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Viscum album subsp. austriacum (Wiesb.) Vollm.-1805-2

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Podarcis cretensis

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Predator-prey relation

Aquila chrysaetos (Golden Eagle) and Lepus Europaeus (Brown Hare).
Podarcis cretensis (Cretan wall lizard) and Hemidactylus turcicus.
Podarcis cretensis.
A cool video with cannibal wall lizards in the island Parthenos  of Greece

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THEME 2: YELLOWSTONE NATIONAL PARK AND THE HISTORY OF WOLVES

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THEME 2: YELLOWSTONE NATIONAL PARK AND THE HISTORY OF WOLVES

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I believe that the right option, about reintroducing grey wolves into the Yellowstone National Park, is that the wolves were brought in because the increased elk population was overgrazing the deciduous, woody species such as aspen and cottonwood. The elk population began to rise dramatically after the decline of the wolves. This absence of the wolves had a significant ecological impact in the elk populations which caused many changes to the ecosystem of Yellowstone.