Psychometric Properties of the Lexington Attachment to Pets Scale: Mexican Version (LAPS-M)

The Lexington Attachment to Pets Scale (LAPS) is perhaps the most widely used instrument to assess human emotional attachments to pets and is suitable for both dog and cat owners. However, this instrument has not been translated into Spanish. Thus, the present study aimed to assess the psychometric properties of the Mexican version of the Lexington Attachment to Pets Scale (LAPS-M), which was translated into Spanish and adapted for dog owners. We analyzed the internal consistency and factor structure in a convenience sample of 152 people; 56.6% were women and 43.4% were men, with a mean age of 32.4 years (SD = 10.9 years), who had, on average, two dogs for a period of 3.8 years. The results indicate that the scale has excellent internal consistency in its complete version, with a Cronbach's alpha of 0.96, and also in its three subscales, with Cronbach's alpha coefficients ranging from 0.83 to 0.94. Factor analysis suggests a unifactorial structure is appropriate. However, the goodness-of-fit indicated by confirmatory factor analysis statistics would likely improve with a larger sample size. When we compared the central tendency measures of the LAPS-M according to the type of relationship with the dog, we found higher scores among people who considered dogs to be family members than among those who considered dogs to be pets. Furthermore, people who reported that the relationship with their dog was burdensome or stressful had lower scores. We conclude that the Mexican version of the LAPS is adequate and that further studies with larger sample sizes will contribute to the evidence regarding its psychometric properties     

Recovery without resilience: persistent disturbance and long-term shifts in the structure of fish and coral communities at Tiahura Reef, Moorea

Disturbances have a critical effect on the structure of natural communities. In this study long-term changes were examined in the reef community at Tiahura Reef, on the northern coast of Moorea, which had been subject to many and varied disturbances over the last 25 years. Tiahura Reef was subject to an outbreak of crown-of-thorns starfish (Acanthaster planci) in 1980–1981, causing significant declines in the abundance of scleractinian corals and butterflyfishes. By 2003, the abundance of corals and butterflyfishes had returned to former levels, but despite this apparent recovery, the species composition of coral communities and butterflyfish assemblages was very different from those recorded in 1979. Ongoing disturbances (including further outbreaks of crown-of-thorns starfish, cyclones, and coral bleaching events) appear to have prevented recovery of many important coral species (notably, Acropora spp.), which has had subsequent effects on the community structure of coral-feeding butterflyfishes. This study shows that recurrent disturbances may have persistent effects on the structure and dynamics of natural communities.     

The abundance of herbivorous fish on an inshore Red Sea reef following a mass coral bleaching event

A healthy herbivore community is critical for the ability of a reef to resist and recover from severe disturbances and to regain lost coral cover (i.e., resilience). The densities of the two major herbivorous fish groups (the family Acanthuridae and scarine labrids) were comparatively studied for an inshore reef that was severely impacted by a mass coral bleaching event in 2010 and an unaffected reef within the same region. Densities were found to be significantly higher on the affected reef, most likely due to the high algal densities on that reef. However, densities of herbivores on both reefs were found to be on average about 1–2 orders of magnitude lower than previously published reports from some Pacific reefs and from Red Sea reefs in the Gulf of Aqaba and only slightly higher than Caribbean reefs. Thus, it is predicted that recovery for this reef and similarly affected reefs may be very slow. The protection of herbivores from overfishing and the introduction of other management strategies that maximize reef resilience in Saudi Arabian waters are highly recommended.     

Towards a phylogenetic classification of reef corals: the Indo‐Pacific genera Merulina,Goniastrea and Scapophyllia (Scleractinia,Merulinidae)

Recent advances in scleractinian systematics and taxonomy have been achieved through the integration of molecular and morphological data, as well as rigorous analysis using phylogenetic methods. In this study, we continue in our pursuit of a phylogenetic classification by examining the evolutionary relationships between the closely related reef coral genera Merulina, Goniastrea, Paraclavarina and Scapophyllia (Merulinidae). In particular, we address the extreme polyphyly of Favites and Goniastrea that was discovered a decade ago. We sampled 145 specimens belonging to 16 species from a wide geographic range in the Indo‐Pacific, focusing especially on type localities, including the Red Sea, western Indian Ocean and central Pacific. Tree reconstructions based on both nuclear and mitochondrial markers reveal a novel lineage composed of three species previously placed in Favites and Goniastrea. Morphological analyses indicate that this clade, Paragoniastrea Huang, Benzoni & Budd, gen. n., has a unique combination of corallite and subcorallite features observable with scanning electron microscopy and thin sections. Molecular and morphological evidence furthermore indicates that the monotypic genus Paraclavarina is nested within Merulina, and the former is therefore synonymised.     

Morpho-molecular traits of Indo-Pacific and Caribbean Halofolliculina ciliate infections

Coral Reefs - Coral diseases are emerging as a major threat to coral reefs worldwide, and although many of them have been described, knowledge on their epizootiology is still limited. This is the...