18 research outputs found
Sounds of protolanguages: Some preliminary insights from developmental psychology
In present paper I examine the transition from crying to word in human infants and propose that it might be a treasure acoustic box helping us to conceive how our ancestor’s sounds might have been, and to outline breakpoints that might help us in making hypotheses about possible subsequent phases of language evolution.
Climate Change and Emotions: Analysis of People’s Emotional States in Southern Ecuador
Climate change involves multiple emotional expressions associated with specific labels, notably:‘concern’ ‘guilt’, or ‘scepticism’ However, there are other types of emotions that have been less analysed, such as ‘powerlessness’, ‘anger’ and ‘confusion’ that are of equal importance for predicting behavioural changes towards this climatic issue. Likewise, few studies in this research field rely on qualitative data to understand and identify the causative agents for the emotional arousal. This research explores a range of emotions, mixing those that have been widely studied and those that have been hardly analysed. It also looks at the demographic parameters associated with such emotions using a population sample from southern Ecuador. The study analyses quantitative and qualitative data gathered through structured-questionnaires whereby participants were given agency to select and define how they themselves sense emotionally climate change. The results indicate that two of the five participants' most selected emotions are shared with other nations (‘concern’, ‘guilt’), while the other three have been less reported and studied in the climate change field (‘powerlessness’, ‘anger’, and ‘confusion’). These emotions were found to be aroused by different reasons associated with specific demographic variables. The findings reveal the role of the cultural and local environment in the emotional arousal and its relevance for designing more effective climate communication campaigns
Helpers influence on territory use and maintenance in Alpine marmot groups
In social mammals, territory size and shape vary according to the number and strength of neighbour individuals competing for resources. Two main theories have been proposed to explain this variability: the Group Augmentation (GA) and the realized Resource Holding Potential (rRHP) hypotheses. The first states that the outcome of the interactions among groups depends on the total number of individuals in the group while the second states that only the number of animals directly involved in intergroup competition determines this outcome. We collected data on space use of individually tagged Alpine marmots ( Marmota marmota), a cooperative breeding species that overlaps part of its territory with neighbouring groups. In accordance with the rRHP hypothesis, we found that groups having higher proportion of helpers, rather than higher total number of individuals, had lower percentage of the territory overlapping with neighbouring groups and a larger area available for individual exclusive use
The successful introduction of the alpine marmot Marmota marmota in the Pyrenees, Iberian Peninsula, Western Europe
21 páginas1. The introduction of non-native species can pose environmental and economic
risks, but under some conditions, introductions can serve conservation or recreational
objectives. To minimize risks, introductions should be conducted following
the International Union for Conservation of Nature’s guidelines and should
include an initial assessment and a follow-up.
2. In 1948, to reduce the predation pressure on Pyrenean chamois Rupicapra
pyrenaica pyrenaica by golden eagles Aquila chrysaetos, the alpine marmot
Marmota marmota was introduced to the Pyrenees in Western Europe. In successive
introductions, about 500 marmots were released, but the fate of the released
animals and their impacts on the environment remain largely unstudied.
3. The aim of this study was to assess the success of the introduction of the alpine
marmot into the Pyrenees, 60 years after the initial release, and the potential
impacts of this species on Pyrenean ecosystems.
4. We reviewed what is known about the marmot populations introduced to the
Pyrenees and other populations within their native range in the Alps, particularly
in terms of population structure and dynamics, habitat use and potential environmental
impacts.
5. The alpine marmot is widely distributed and, apparently, well established in the
Pyrenees. Population structure and demographic parameters are similar within
and outside the historical distribution range of the species, and habitat suitability
is one of the main reasons for the species’ success in the Pyrenees. Few researchers
have investigated the impacts of alpine marmots in the Pyrenees; thus, those
impacts have to be inferred from those observed in the species’ native range or
in other species of marmot. Introduced alpine marmots are likely to impact on
Pyrenean grasslands through grazing and burrowing, have the potential to alter
Pyrenean food webs and could act as vectors of parasites and disease.
6. Although the introduction of the alpine marmot in the Pyrenees appears to
have been successful, more needs to be known about the effects of the established
populations on the environment before informed management actions can be
taken in the Pyrenees.We thank M. Gartzia for assistance with the map, C.
Gortázar for useful advice on the parasites of alpine
marmots, K. Foulché for providing information on the
French populations and B. MacWhirter for improving the
English version. Special thanks are due to S. Couto, A.
GarcÃa-Serrano and I. Garin for their support. A Félix de
Azara Research Grant awarded by the Diputación de Huesca
funded this project.Peer reviewe