Energetic trade‐offs in resource allocation form the basis of life‐history theory, which predicts that reproductive allocation in a given season should negatively affect future reproduction or individual survival. We examined how allocation of resources differed between successful and unsuccessful breeding female Columbian ground squirrels to discern any effects of resource allocation on reproductive and somatic efforts. We compared the survival rates, subsequent reprodction, and mass gain of successful breeders (females that successfully weaned young) and unsuccessful breeders (females that failed to give birth or wean young) and investigated “carryover” effects to the next year. Starting capital was an important factor influencing whether successful reproduction was initiated or not, as females with the lowest spring emergence masses did not give birth to a litter in that year. Females that were successful and unsuccessful at breeding in one year, however, were equally likely to be successful breeders in the next year and at very similar litter sizes. Although successful and unsuccessful breeding females showed no difference in over winter survival, females that failed to wean a litter gained additional mass during the season when they failed. The next year, those females had increased energy “capital” in the spring, leading to larger litter sizes. Columbian ground squirrels appear to act as income breeders that also rely on stored capital to increase their propensity for future reproduction. Failed breeders in one year “prepare” for future reproduction by accumulating additional mass, which is “carried over” to the subsequent reproductive season.
Urban parks are the primary green infrastructure for urban residents to pursue psychological restoration, promote health, relax and connect with nature. The various cultural ecosystem services (CES) provided by urban parks directly impact people’s health and well-being. Understanding the correlation between CES provided by urban parks and the different characteristics of specific groups can promote public willingness to engage with the nature and their health and well-being, and the effective information provided by CES can be used to protect and improve specific or traditional areas of parks. This study focuses on two urban parks (People’s Park and Xiliu Lake Park) located in the central urban area of Zhengzhou, Henan Province, China. A questionnaire survey and participatory mapping methods were employed to explore the priority for 10 types of CES among both local residents and visitors, aiming to reveal the public demand for CES in urban parks and provide a basis for the landscape design or renovation of urban parks. The results show that (1) the main purposes for the public visiting the parks are mental relaxation, scenery appreciation, and leisure and fitness. (2) The public has a rich perception of various types of CES in the urban parks, especially in terms of entertainment and aesthetic value. (3) The impact of education level on cultural services was substantial. (4) The trade-offs and synergies of CES of urban parks are complex and diverse. (5) The public’s perception of urban park CES and spatial value tend to be similar, with a wide distribution. Therefore, to maintain urban sustainable development, urban managers and landscape designers should consider different perspectives on CES provided by urban park stakeholders and enhance their CES through landscape design and renovation practices in urban parks, thereby improving the health and well-being of the public.
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