Luigi Remonti

Luigi Remonti

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52
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Publications (52)
Chapter
Ranges of species can expand or contract over time due to anthropogenic and/or environmental factors. The pine marten, Martes martes , occurs throughout much of Europe and is generally associated with mature coniferous and mixed forests. Nonetheless, in the past 15 years, the southward range expansion of alpine pine marten populations has reached t...
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Laboratory studies have demonstrated that, given plenty of food, many animals can achieve a species‐specific macronutrient intake target by selecting nutritionally balanced foods or combining complementary foods. Wild‐living, broad‐scope omnivorous species often face great heterogeneity in the composition of available resources. Hence they may be p...
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In the second half of the twentieth century, European otter populations crashed in large areas of the Italian peninsula. As a consequence, at the end of the century the Italian otter population consisted of five isolated nuclei, the extinction of which had been foretold to occur within a few decades. In contrast, in the last two decades the otter h...
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Italy is amongst the European countries for which data on badger Meles meles numbers and variation in population size are still too few to assess its conservation status. With the aim of estimating badger density in northern Italy, between February 2013 and March 2014, we extensively surveyed an isolated hilly area for badger setts and assessed gro...
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Captive experiments have shown that many species regulate their macronutrient (i.e. protein, lipid and carbohydrate) intake by selecting complementary food types, but the relationships between foraging strategies in the wild and nutrient regulation remain poorly understood. Using the pine marten as a model species, we collated available data from t...
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Small mammals are considered good model species for assessing the global effects of habitat loss and fragmentation in agricultural landscapes. With the aim of investigating the composition and habitat preferences of the small mammal community in an intensively cultivated area, we sampled the three main “macro-habitats” (wood patches, poplar plantat...
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Pest management requires the development of robust monitoring tools. In Italy, coypu Myocastor coypus (nutria) have been controlled since the early 1990s, but the effectiveness of these measures has never been tested. With the aim of developing a reliable and volunteer-based method for the long-term monitoring of coypu abundance in agricultural lan...
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The location of pine marten records in northern Italy suggests that main rivers may play the role of natural corridors favouring this species’ colonisation of cultivated lowlands. We assessed the distribution and habitat use by the pine marten on a 35 km long stretch of the River Ticino. Surveys were carried out between October 2011 and June 2012 a...
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1. Biological invasions are considered a major threat to biodiversity. Most research has focused on the distribution, biology and impacts of non-native species on native fauna and flora. However, few studies have explored their role as prey for native predators of conservation concern. 2. To assess the incidence and intensity of predation by the E...
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In the two last decades, the pine marten Martes martes has expanded in the River Po plain, causing the displacement of the stone marten M. foina from residual wooded areas. As a high degree of food niche overlap can favour exploitative competition and information about stone marten diet in Northern Italy was scarce, we analysed a sample of 181 ston...
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Habitat segregation is considered to favour the coexistence of sympatric pine martens Mantes martes and stone martens M foina, the latter being displaced to agricultural and urbanised areas. Subsequent to the report of pine martens in cultivated areas of the western River Po plain (NW Italy), we reviewed all available information on the presence of...
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The stone marten (Martes foina) and the pine marten (M. martes) are closely related mammalian carnivores potentially subject to exploitative competition. The recent expansion of the pine marten into the intensively cultivated plain of the River Po (NW Italy), where previously only stone marten occurred, offered an interesting opportunity to analyse...
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The stone marten (Martes foina) and the pine marten (M. martes) are closely related mammalian carnivores potentially subject to exploitative competition. The recent expansion of the pine marten into the intensively cultivated plain of the River Po (NW Italy), where previously only stone marten occurred, offered an interesting opportunity to analyse...
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The marking behaviour of the European badger (Meles meles L., 1758) in a low-density population of NW Italy was investigated by examining the distribution and pattern of use of latrines in relation to space-use by a badger social group, as assessed by radiotracking. Latrines were mostly placed close to linear features and marked the core area of th...
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In the context of intraspecific competition, the distribution of key resources within a territory could influence the spatial patterns of scent deposition by territory owners, in order to maximise the defensibility of resources and reduce the costs of their defence. We investigated the pattern of spraint deposition by the Eurasian otter (Lutra lutr...
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We assessed the diet of pine marten (Martes martes) expanding in the heavily human-altered agricultural plain of the River Po, northern Italy. Between February 2008 and November 2009, surveys were carried out twice a week during seasonal sampling sessions of three to four consecutive weeks. To distinguish the faecal samples from those of sympatric...
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Although originally evolved as predators, several species of mammalian carnivores exhibit a great trophic diversity, ranging from hypercarnivory to a high consumption of vegetable food. Habitat characteristics influence food availability and consequently could affect the nutritional composition of the diet of generalist species. By reviewing the av...
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Please use this identifier to quote or link to this item: http://hdl.handle.net/10201/91147 Appears in collections: II Jornadas doctorales de la Universidad de Murcia (Spain). ISBN 978-84-608-9778-1
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False negative detections may bias the surveys for rare species and reduce the reliability of models based on the proportion of occupied patches. We assessed the detectability of the Eurasian otter Lutra lutra through the standard survey method by analysing the detection history of 28 sampling stretches surveyed monthly between March 2001 and Janua...
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In 2001 and 2002 we studied Eurasian otter (Lutra lutra) fish selection in southern Italy by comparing otter diet (805 analysed spraints) with fish availability, estimated by electrofishing. The surveyed river was dominated by cyprinids, particularly by chub (Leuciscus cephalus), roach (Rutilus rubilio) and bleak (Alburnus sp.). Roach and chub were...
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From June 2000 to December 2003 a low-density badger (Meles meles) population was studied by radiotelemetry in an area of agricultural lowland in northern Italy. Four badgers, one male (M1) and three females (F1, F2, F3) were caught but only three of these were radio-tracked for 8–12 months because the transmitter attached to F3 failed. Tracked ani...
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Research on the feeding habits of mammalian carnivores relies mainly on the analysis of stomach contents and faecal samples, but the outcomes of these two methods have only been compared in a few studies, with contrasting conclusions. In an Alpine area of NW Italy, we analysed both fox faeces collected along standardised transects, and the stomach...
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Indirect methods such as faecal counts have been widely used for assessing the abundance and habitat preferences of many mammal species, although their reliability has been long debated. We tested the validity of this method for the Eurasian badger Meles meles in a low-density population in northern Italy by comparing results obtained from radio-tr...
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Food availability has been suggested to be the main factor shaping the altitudinal limits of species distributions. We analyzed the badger (Meles meles) diet in the western Italian Alps and, particularly, at the altitudinal limit of its range, with the main aim of highlighting any reduction in earthworm availability with altitude which could act as...
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The effects of geographical factors, such as latitude and altitude, on climate are known to influence the food habits of predator species distributed over a broad distribution range. A sharp latitudinal gradient in the diet of the Eurasian otter (Lutra lutra (L., 1758)), that is an increase of trophic diversity from temperate to Mediterranean Europ...
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strong>Abstract In the last 20 years the otter Lutra lutra has expanded its range in the southern part of the Italian peninsula. Populations at the border of otter range suffer a high risk of extinction and need frequent monitoring. Here we report about a survey carride out by the standard method in the central Calabria region (Sila Massif and sur...
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A b s t r a c t . To investigate time-and spatial related variations in the composition of otter Lutra lutra diet, a total of 838 faecal samples was collected in the upper catchment of the Agri River (Basilicata region, southern Italy), and analysed. Data were split up according to the four seasons and between the main river and three of its tribut...
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On the River Ticino (NW Italy), the release, in 1997, of a pair of otters Lutra lutra, possibly reinforced by the escape of a further pair, allowed the establishment of a small breeding population. In summer 2008, a survey was carried out using the 'standard method' to determine current otter distribution. Data on otter diet were also collected thr...
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Diet composition of otters (Lutra lutra) was investigated in 2001 by spraints analysis (N = 1323) on five rivers of southern Italy, with the aim of assessing the influence of fish availability, elevation and discharge on the consumption of food resources alternative to fish. Data were expressed as per cent frequency of occurrence (%FO) and per cent...
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strong>Abstract Riassunto Monitoraggio genetico non invasivo della martora ( Martes martes ) nella pianura padana occidentale: risultati preliminari. Tra il 2003 e il 2004, due esemplari di martora ( Martes martes ) sono stati investiti da automezzi sulla sponda sinistra del fiume Po (R. N. Garzaia di Valenza, Piemonte). Per accertare la presen...
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In an Alpine area, scat analysis and marking activity were used to assess the feeding habits, habitat preference and the degree of overlap of trophic niche and habitat use in sympatric carnivores: the red fox (n = 133 faecal samples), the badger (n = 177), the pine and the stone marten (Martes sp., n = 382). Fruits were the main trophic resource fo...
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strong>Abstract During the summer 2002-2003, mist-netting at seven cave entrances enabled a survey of cave-dwelling bats in the southern Ticino Canton (Switzerland). Overall, 36 individuals belonging to 7 species were recorded: Rhinolophus errumequinum , Hypsugo savii , Plecotus austriacus , P. auritus , Myotis nattereri , M. daubentoni and M. bec...
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Management of recolonising species needs precise knowledge concerning those environmental parameters that can influence the species current distribution at the margins of their range and their potential for further expansion. The otter (Lutra lutra) is one of the most endangered species of the Italian fauna. After a sharp decline, it has gradually...
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strong>Abstract In central and southern Europe, the red fox Vulpes vulpes is considered the reservoir of the parasite nematode Trichinella britovi , whose mainly fox-to-fox transmission would involve cannibalism in mountainous areas. Reviewing available literature, we examine the main ecological features of the host-parasite relationship, pointing...
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ABSTRACT • Changes in otter Lutra lutra distribution in Italy were examined by analysing geographical, historical and survey data. • As in other European countries, otters declined sharply in Italy during the late 1970s and throughout the 1980s. Between 1985 and 2004 the species became extinct, except for some reintroductions, in northern and most...
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The food habits of both weasels and stoats (Mustela nivalis and M. erminea) and the occurrence of fruit in their diet were studied by scat analysis in the Gran Paradiso National Park (western Italian Alps). Being impossible to distinguish between stoats and weasels scats, they were grouped together as the genus Mustela. Despite the high consumption...
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The diet composition of otters in the upper catchment of the River Agri (southern Italy) was investigated by spraint analysis (N = 555) between May 2001 and January 2003. Once a season, spraints were collected along four riv-erine stretches, two with swift-waters and two with slow-waters. Overall, fish represented the dominant food (percent mean vo...
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Population size of European otters (Lutra lutra) was estimated in Pollino National Park (southern Italy) by genetic typing of fresh feces collected in the field. Of 187 fecal samples gathered, 185 (98.9%) yielded otter DNA, 77 (41.2%) were successfully typed, and 23 different genotypes were identified. A nonlinear regression between the number of t...
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Between 2001 and 2004, with the aim of restoring the natural biodiversity of a protected area, the Eurasian badger (Meles meles) was reintroduced into the Montevecchia and Curone Valley Regional Park (northern Italy), where it had been extirpated by human persecution. The project was combined with the reduction of badger damage on railway tracks al...
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b>Abstract Mapping available data about otter ( Lutra lutra ) distribution according to the 10x10 km grid of the IGMI (Italian Geographical Military Institute) national maps on the scale of 1:25000, we evaluated a current otter range of 9900 km<sup>2</sup>, disjoined in two areas: Molise region in central Italy, and Basilicata, Campania, Calabria...
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Abstract This paper analyses some otter (Lutra lutra) spatial data, obtained by the location of genetically typed spraints in the Pollino national park and surrounding areas (southern Italy). A sample of 214 otter spraints was collected (27 faeces in 2001-02 and 187 in 2004) along 10 streams of the park, and their location was digitalized by a Geog...
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Between 2001 and 2004, 229 foxes, 36 stone martens and 48 badgers from the western Italian Alps were examined for sarcoptic mange and for gastrointestinal helminths to investigate their prevalence and geographical distribution and to point out the existence of potential interactions among them. Sarcoptic mange was observed in 25.32.8% SE of foxes a...
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The diet and feeding relationships of two cyprinids, the Italian orange‐fin roach Rutilus rubilio and the chub Leuciscus cephalus, were studied in southern Italy by the analysis of 189 gut contents. Fish species were sampled in conditions of sympatry/hybridisation in the River Sinni, and allopatry in the River Mercure‐Lao (roach) and in the River R...
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strong>Abstract To appreciate the influence of the introduction of the Eastern cottontail ( Sylvilagus floridanus ) on the food habits of the red fox (Vulpes vulpes), between June 1998 and February 2000 fox diet was investigated by means of scat analysis (N=115) in a 250 ha wide Natural Reserve of NW Italy, and compared with data collected in the...
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strong>Abstract Between November 2002 and March 2003, thirty-five trapping sessions, carried out along 1.5-9 m wide irrigation canals scattered in six provinces of Lombardy region (northern Italy), allowed us to test for the effectiveness of coypu ( Myocastor coypus ) control operations in the central part of the intensively cultivated plain of th...
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The characteristics and density of Eurasian badger Meles meles setts and the factors affecting sett-site choice were studied from February 1999 to January 2000 in the River Po Park (Piedmont region, NW Italy). Badger setts were a complex of underground tunnels with, on average, 6.4 entrances. In hilly habitat badger sett density was higher than in...
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Food habits of the red fox (Vulpes vulpes) were studied in the Aosta Valley region (NW Italian Alps) and were related to the prevalence of Trichinella infection in the red fox itself and in two Mustelid species (the stone marten (Martes foina) and the badger (Meles meles)). The search of Trichinella by the automatic digestion of muscles samples led...
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From March 2001 to December 2002, 32 stretches (sampling stations, mean length 673 m) distributed on 17 watercourses of the Pollino National Park (southern Italy) and the surrounding area were searched monthly for otter Lutra lutra signs, mainly spraints. All the watercourses were positive for otter with a mean percentage of 82.2%, indicating a sta...
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A b s t r a c t . From September 1994 to August 1995 we studied the diet of coypus, Myocastor coypus, in a freshwater habitat located in the Ticino regional park (NW Italy). Adult and young coypus were directly observed foraging in and near water. Aquatic macrophytes (81.8%) represented the staple food all year round. Common reeds (Phragmites austr...
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Abstract Badger Meles meles diet was studied throughout 2001-03 by the analysis of 199 scats collected in the River Po Park (Piedmont region, NW Italy). The study area (136 km²) included a large portion of plain (129.2 km²) dominated by agriculture (maize, rice and poplar plantations) with scarce riparian vegetation cover, and a small sector of hil...
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Abstract In the Alessandria section of the Turin railway-basin (northern Italy), the presence of the badger (Meles meles) setts in railway embankments causes progressive track subsidence. Rail traffic is dangerous and continuous maintenance and surveillance are required. In the past, the problem was managed without success, by trying to damage and...

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