Data from: Benthic community history in the Changjiang (Yangtze River) mega delta: Damming, urbanization, and environmental control

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the 1980s - the 2010s;Paleoecology;Ostracoda

DOI：

doi:10.5061/dryad.39121ns

摘要：

e shoreward distribution of some well-known off-shore ostracode species in the 2010s compared to the 1980s, and relatively more important role of environmental

Data from: Historical changes in grassland area determined the demography of semi-natural grassland butterflies in Japan

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关键词：

endangered species;Grassland area;Mitochondrial DNA;conservation;microsatellite;Melitaea ambigua;1980-2015

DOI：

doi:10.5061/dryad.66471

摘要：

. In contrast, the genetic diversity and effective population sizes of many populations significantly declined from the 1980s to 2010s, which is consistent

Data from: Getting ready for the winter: timing and determinants of molt in an alpine ungulate

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关键词：

resources availability;mountain goat;allocation;Ageing;1980s-2010s;hair growth;Oreamnos americanus

DOI：

doi:10.5061/dryad.5t165h5

摘要：

Because growth of new hairs entails energetic costs, individual condition and access to food should determine the timing of molt. Previous studies on the timing of molt in ungulates have mostly focused on the influence of age-class and reproductive status, but the effects of body condition and environmental phenology have not been evaluated. Our goal was to assess how intrinsic traits and environmental conditions determine the timing of winter coat shedding in a mountain goat population monitored for 27 years. The date of molt completion followed a U-shape with age, suggesting that senescence occurs in terms of the molting process in mountain goats. Juveniles of both sexes delayed molting in a similar fashion, but molt timing differed between sexes during adulthood. Males molted progressively earlier until reaching age when reproduction peaked, after which they started delaying molting again. Females reached earliest molt dates at age of first reproduction and then progressively delayed molt date. Lactating females molted 10 days later than barren females on average, but this only occurred in females in good condition. Thus, although it has been shown that reproduction delays molt in ungulates, our results indicate that body condition can override this effect. Overall, our results revealed that access to both extrinsic and intrinsic resources is one of the key mechanisms driving molting processes in a mammalian herbivore.