Distribution and relative abundance of peccaries in the Argentine Chaco: associations with human factors

Altrichter, Mariana; Boaglio, Gabriel Iván

doi:10.1016/s0006-3207(03)00192-7

Cited by 82 publications

(74 citation statements)

References 13 publications

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“…Clearly, the environmental impacts of roaded networks are a global problem. Roads have direct effects including animal mortality (Haines et al, 2006;Ramp et al, 2005;Roe et al, 2006;Roger et al, 2007), habitat loss (Ewers et al, 2006;Nielsen et al, 2006), habitat degradation (Nyströ m et al, 2007), and fragmentation (Mata et al, 2005), as well as indirect effects on ecological patterns and processes, including barrier effects (Bhattacharya et al, 2003), loss of connectivity (Clevenger and Wierzchowski, 2006), and reduced permeability (Spellerberg, 2002;Bissonette and Storch, 2003;Forman et al, 2003; 0006-3207/$ -see front matter Published by Elsevier Ltd. doi:10.1016/j.biocon.2007.10.019 Altrichter and Boaglio, 2004). Both direct and indirect effects impact animal movement (Jaeger et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Restoring habitat permeability to roaded landscapes with isometrically-scaled wildlife crossings

Bissonette

Adair

2008

Biological Conservation

115

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Section: Introductionmentioning

confidence: 99%

Restoring habitat permeability to roaded landscapes with isometrically-scaled wildlife crossings

Bissonette

Adair

2008

Biological Conservation

115

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“…number of tracks, burrows, feces, or calls per unit area) are commonly used in wildlife studies, particularly in studies with terrestrial vertebrates (Thompson et al 1989, Becker et al 1998, Schwarz & Seber 1999, Wilson & Delahay 2000, Altrichter & Boaglio 2004. These indices assume a fixed level of search effort that allows the researcher to locate the same proportion of the population.…”

Section: Introductionmentioning

confidence: 99%

Estimating clutch frequency in the sea turtle Dermochelys coriacea using stopover duration

Rivalan¹,

Pradel²,

Choquet³

et al. 2006

Mar. Ecol. Prog. Ser.

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When direct counts are not possible, relative population size indices, based on animal activity (e.g. number of tracks, burrows, feces, calls per unit area), are sometimes the only tools available to investigate population size variations over time. In sea turtles, the number of clutches laid on a nesting beach in a particular season is commonly used as a relative index of population density. The factor of proportionality that links the relative index and population density is the number of clutches annually laid per female per season or clutch frequency. At Awa:la-Ya:lima:po Beach, French Guiana (South America), we estimated clutch frequency in the sea turtle Dermochelys coriacea using capture-recapture monitoring over an 8 yr period (1995 to 2003, 1997 excluded). We compared 2 methods: (1) Estimated Clutch Frequency (ECF), where Observed Clutch Frequency (OCF) was corrected by taking account for intermediate missed nests, and (2) Total Clutch Frequency (TCF) derived from recent advances in capture-recapture methodologies that were initially developed to estimate stopover duration in migratory animals. Compared to the first method, the latter enabled estimation of the time spent before first capture and after the last capture, as well as the capture probability. Mean annual clutch frequency derived from stopover duration was considerably higher than ECF (respectively 2.38 and 7.01 clutches female -1 yr -1). In nesting sites where survey effort is low and variable over years, using capture-recapture data analysis might enhance the reliability of conclusions about population size in marine turtles.

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“…Both species contribute to the maintenance and composition of trees in forests through herbivory and seed dispersal and predation (Bodmer 1991;March 1993;Beck 2005Beck , 2006Keuroghlian and Eaton 2009;Beck et al 2010). Peccaries are an essential food resource for the inhabitants of rural and indigenous communities throughout their distribution range (Weber 2000;Altrichter and Boaglio 2004;Desbiez et al 2009;Reyna-Hurtado et al 2010;Briceño-Méndez et al 2011;Keuroghlian et al 2013;Naranjo et al 2015). Wild populations of both species are currently under an intense pressure by hunting and loss of habitat (Reyna-Hurtado 2009; Góngora et al 2011;Altrichter et al 2012;Keuroghlian et al 2013;Naranjo et al 2015;Briceño-Méndez et al 2016).…”

Section: Methodsmentioning

confidence: 99%

Availability of two species of fruits and their influence on the social structure of Tayassu pecari and Dicotyles tajacu

Briceño-Méndez

Naranjo

Altrichter³

et al. 2017

Therya

Self Cite

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The white-lipped peccary (Tayassu peccari) and the collared peccary (Dicotyles tajacu) are social ungulates that contribute to tropical forest maintenance, molding the composition of tree species through herbivory and seed dispersal and predation. The fruits of zapote (Manilkara zapota) and ramon (Brosimum alicastrum) trees are important items in the diet of both peccary species. The objective of this study was to assess the relationship between the abundance of fruits of Manilkara zapota and Brosimum alicastrum and its relationship with the number of newborns in groups of both peccary species during the rainy and dry season in a tropical forest in the Yucatan Peninsula, Mexico. Peccary groups were monitored with ten camera trap stations and through direct observations during the dry season of 2014 (February-May) and the rainy season of 2015 (June -September). To estimate fruit availability, five transects (2 km long) were set at random in forested areas. Several 2-m 2 tree plots were established in each transect to obtain a fruit abundance index. Peccary group size and number of newborns in each season were correlated with fruit abundance. In both species, group size was significantly larger in the dry vs. rainy season (P < 0.001). Offspring were proportionally more abundant during the dry season (P < 0.001). Fruits of M. zapota were more abundant in the dry season and reached the peak availability in May (P < 0.001). Fruits of B. alicastrum were more abundant in the rainy season, reaching the peak availability in September (P < 0.001). For both peccary species, the highest numbers of newborns in individual groups may be attributable, although not specifically, to the abundance of M. zapota fruits during the dry season. In this sense, the groups of both peccary species may depend on the seasonal availability of food of key species, such as the fruits of M. zapota during the dry season. Based on these results, preserving areas in good conservation status is deemed important, as well as reducing tree clearing of species such as zapote and ramon at the study site.El pecarí de labios blancos (Tayassu pecari) y el pecarí de collar (Dicotyles tajacu) son especies de ungulados sociales que contribuyen en al mantenimiento y composición arbórea de los bosques del trópico a través de los procesos de herbivoría, dispersión y depredación de semillas. Los frutos del zapote (Manilkara zapota) y ramón (Brosimum alicastrum) son especies arbóreas importantes en la dieta de ambas especies. El objetivo de este estudio fue evaluar la relación entre la abundancia de frutos de Manilkara zapota y Brosimum alicastrum y su relación con el número de crías en grupos de pecarí de ambas especies durante la estación seca y húmeda de una selva tropical en la Península de Yucatán, México. Se realizó un monitoreo con 10 estaciones de cámaras trampa y observaciones directas de grupos de pecaríes durante la estación seca de 2014 (febrero-mayo) y la estación de lluvias de 2015 (Junio-Septiembre). Para estimar la disponibilidad de frutos, se recor...

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Distribution and relative abundance of peccaries in the Argentine Chaco: associations with human factors

Cited by 82 publications

References 13 publications

Restoring habitat permeability to roaded landscapes with isometrically-scaled wildlife crossings

Restoring habitat permeability to roaded landscapes with isometrically-scaled wildlife crossings

Estimating clutch frequency in the sea turtle Dermochelys coriacea using stopover duration

Availability of two species of fruits and their influence on the social structure of Tayassu pecari and Dicotyles tajacu

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