Phenological and morphological responses of the Mediterranean coral Astroides calycularis to environmental conditions
ثبت نشده
چکیده
Studies of intraspecific variation in the presence of different environmental features are essential in improving the knowledge of species population dynamics and structure. Sea surface temperature (SST) plays a fundamental role on the fertilization period of scleractinian corals. Astroides calycularis is an azooxanthellate scleractinian coral commonly found in shallow rocky habitats of the southwestern Mediterranean Sea. This study compares the fertilization period of the coral between two distant localities with different sea surface temperatures; one in the southern coast of the Iberian Peninsula (average SST 20.4±1.8oC), and the other in the southwestern coasts of Italy (average SST 21.5±1.9oC). Colony morphology varied between localities, the former having “massive” morphology with densely
منابع مشابه
Phenological and morphological variations in the Mediterranean orange coral Astroides calycularis between two distant localities.
Studies of intraspecific variation in the presence of different environmental features are essential to improving the knowledge of species population dynamics and structure. Astroides calycularis is an azooxanthellate scleractinian coral commonly found in shallow rocky habitats of the southwestern Mediterranean Sea. This study compares the fertilization period of two coral populations located i...
متن کاملThe interaction between the proliferating macroalga Asparagopsis taxiformis and the coral Astroides calycularis induces changes in microbiome and metabolomic fingerprints
Mediterranean Sea ecosystems are considered as hotspots of biological introductions, exposed to possible negative effects of non-indigenous species. In such temperate marine ecosystems, macroalgae may be dominant, with a great percentage of their diversity represented by introduced species. Their interaction with temperate indigenous benthic organisms have been poorly investigated. To provide n...
متن کاملMorphological Diversity Assessment of Five Populations of Sulla (Hedysarum flexuosum L.) Harvested at Five Phenological Stages in Kabylie region (Algeria)
Hedysarum flexuosum L. is an important forage legume with high nutritive value. The determination of forage production in natural habitats is the most important factor for grazing management. Studies on its habitat characteristics and distribution are scarce. This research was conducted in order to evaluate the extent of pheno-morphological diversity in natural populations of Hedys...
متن کاملMolecular diversity of Symbiodinium spp. within six coral species in Larak Island, the Persian Gulf
Reef-building coral harbor communities of photosynthetic taxa of the genus Symbiodinium (zooxanthellae). The genus Symbiodinium is currently classified into nine genetic clades (A–I). Various corals harbor different Symbiodinium clades; some show specificity to a single strain. Coral and their zooxanthellae are sensitive to environmental stresses. In the Persian Gulf, coral reefs are subject to...
متن کاملLife history variation in an annual plant under two opposing environmental constraints along an aridity gradient
Environmental gradients represent an ideal framework for studying adaptive variation in the life history of plant species. However, on very steep gradients, largely contrasting conditions at the two gradient ends often limit the distribution of the same species across the whole range of environmental conditions. Here, we study phenotypic variation in a winter annual crucifer Biscutella didyma p...
متن کامل