<b>MAMMALS IN URBAN CENTERS: a dataset from the perspective of the media in Brazil</b>

The continuous growth of the urban population, coupled with habitat loss, has resulted in unanticipated interactions between animals and humans in urban centers. In this study, we investigated the presence of mammals in urban centers through newspaper reports on websites. Specifically, we examined: i) the frequency of photographic records, ii) the temporal trends (2001 to 2021) and spatial trends (Brazilian regions and states) of the records, iii) the orders, families, and species most frequently reported in urban centers. We searched for news on the Google platform (http://www.google.com.br). We employed combinations of the keywords "mammals in urban centers," "mammals found in the city," and "mammal found in the municipality." We excluded repeated news items, sites that experienced technical problems during the search period, and those that did not cover the topic. We compiled a total of 733 websites. Of the total number of sites, 89% (n = 652) had photographic records. The records spanned from 2002 to 2021, with 73% (n = 534) occurring in the last four years. The Southeast (41%, n = 302), South (25%, n = 182), and Midwest (18%, n = 129) regions stood out. The animals recorded belonged to 55 mammal species (16 vulnerable and 3 endangered), distributed in 22 families and 10 orders. This is the first study that utilize websites for diagnosing the mammal fauna present in urban centers in Brazil. The dataset generated here could aid in understanding the occurrence of mammal species in the urban environment.

城市人口的持续增长，加之栖息地丧失，已导致城市中心区域人与野生动物之间出现了始料未及的互动。本研究依托各网站的新闻报道，对城市中心的哺乳动物存在情况展开了调查。具体而言，我们从以下三方面展开分析：i）影像记录的频次；ii）记录的时间趋势（2001年至2021年）与空间趋势（巴西各区域及州）；iii）城市中心报道频次最高的哺乳类目、科及物种。我们在Google平台（http://www.google.com.br）上检索新闻，使用的关键词组合包括"城市中心的哺乳动物""在城市中发现的哺乳动物"以及"在自治市发现的哺乳动物"。我们剔除了重复报道、检索期间出现技术故障的网站，以及与研究主题无关的站点，最终共收集到733个有效网站。其中89%（n=652）的网站附带影像记录。本次记录的时间跨度为2002年至2021年，其中73%（n=534）的记录集中在最近四年。从区域分布来看，东南部（41%，n=302）、南部（25%，n=182）与中西部（18%，n=129）占比最为突出。本次记录涉及的动物隶属于10个目、22个科，共计55种哺乳动物，其中16种为易危物种、3种为濒危物种。本研究是巴西国内首项依托网站数据调研城市中心哺乳动物区系的研究，本研究生成的数据集将有助于学界理解哺乳动物在城市环境中的出现与分布情况。