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Sexual harassment within academic institutions has profound impacts that may lead to the attrition of groups historically excluded from the biological sciences and related disciplines. To understand sexual harassment's effects on vulnerable communities within academia, we examined graduate student experiences with sexual harassment. In a survey of ecology and evolutionary biology programs across the United States, we found that 38% of the graduate student respondents were sexually harassed during their time in these programs. Sexual harassment disproportionately affected graduate students with multiple intersecting marginalized identities, and these experiences led to delays in completing graduate programs and shifts away from their desired careers. Our research highlights the need for academic institutions, and science more broadly, to make widespread changes to sexual harassment policies, including treating sexual harassment as scientific misconduct and creating resources for individuals within students’ informal support networks, in tandem with efforts to dismantle barriers to advancing diversity, equity, and inclusion.

The lesser long-nosed bat (Leptonycteris yerbabuenae) is a partially migratory, nectarivorous species that exhibits reproductive asynchrony across its range. Both migratory and resident populations of sexually active males of L. yerbabuenae may form an odoriferous dorsal patch during their mating season. This is created by smearing saliva, urogenital fluids, and anal secretions over the interscapular dorsal region with their feet. Dorsal patches are believed to influence female mate choice. We synthesized the sightings of male dorsal patches across the species’ range, including gathering new observations of male L. yerbabuenae with dorsal patches captured at the northern extent of their range and citing previously unreported observations that we obtained by contacting other researchers. We also conducted a literature review to include all previously documented records of male L. yerbabuenae presenting dorsal patches. We document the first observations of male L. yerbabuenae with dorsal patches in the southwestern United States. In the Big Hatchet Mountains in New Mexico, we captured 1 male with a developed dorsal patch (i. e., bare dorsal skin with sticky fur) on 25 July 2019 and two others on the night of 13 August 2019. New observations of males with developed dorsal patches were obtained from Hilltop Mine in Arizona (June 2006 or 2007) and at a hummingbird feeder at a residence near the Hilltop Mine (July 2013). A male with a recovering dorsal patch (i. e., bare dorsal skin with regenerating fur) was also captured in a roost near Patagonia, Arizona, in late August 2008 and at a hummingbird feeder at a residence near Silver City, New Mexico (September 2021). All previously published records of males with dorsal patches occurred in roosts in Mexico during known mating seasons. These new observations suggest that L. yerbabuenae may breed in New Mexico and Arizona between June and August, but follow-up studies are needed to confirm this behavior. Much of the reproductive biology of this important pollinator remains unknown. Therefore, identifying regions where males present dorsal patches may not only assist in locating and protecting mating roosts, but would also further our understanding of the population ecology of this migratory species.

Three individuals of a spinturnicid mite resembling, Spinturnix kolenatii, are reported from the long-tailed serotine bat, Eptesicus hottentotus A. Smith, 1833 (Chiroptera: Vespertilionidae), caugh...

In extreme environments, temperature and precipitation are often the main forces responsible for structuring ecological communities and species distributions. The role of biotic interactions is typically thought to be minimal. By clustering around rare and isolated features, like surface water, however, effects of herbivory by desert-dwelling wildlife can be amplified. Understanding how species interact in these environments is critical to safeguarding vulnerable or data-deficient species. We examined whether African elephants (Loxodonta africana), black rhinoceros (Diceros bicornis), and southern giraffe (Giraffa giraffa) modulate insectivorous bat communities around permanent waterholes in the Namib Desert. We estimated megaherbivore use of sites based on dung transects, summarized vegetation productivity from satellite measurements of the normalized difference vegetation index, and surveyed local bat communities acoustically. We used structural equation models to identify relationships among megaherbivores and bat species richness and dry- (November 2016-January 2017) and wet- (February-May 2017) season bat activity. Site-level megaherbivore use in the dry season was positively associated with bat activity-particularly that of open-air foragers-and species richness through indirect pathways. When resources were more abundant (wet season), however, these relationships were weakened. Our results indicate that biotic interactions contribute to species distributions in desert areas and suggest the conservation of megaherbivores in this ecosystem may indirectly benefit insectivorous bat abundance and diversity. Given that how misunderstood and understudied most bats are relative to other mammals, such findings suggest that managers pursue short-term solutions (e.g., community game guard programs, water-point protection near human settlements, and ecotourism) to indirectly promote bat conservation and that research includes megaherbivores' effects on biodiversity at other trophic levels.Efectos Indirectos de la Conservación de Mega Herbívoros Africanos sobre la Diversidad de Murciélagos en el Desierto Más Antiguo del Mundo Resumen Es común que en los ambientes extremos la temperatura y la precipitación sean las principales responsables de la estructura en las comunidades ecológicas y en la distribución de las especies. Con frecuencia se cree que el papel de las interacciones bióticas en estas características es mínimo. Sin embargo, si nos enfocamos en características raras y aisladas, como el agua superficial, los efectos de la herbivoría ocasionada por la fauna del desierto puede ser amplificada. El entendimiento de cómo las especies interactúan en estos ambientes es importante para salvaguardar a las especies vulnerables o con datos insuficientes. Examinamos si los elefantes africanos (Loxodonta africana), los rinocerontes negros (Diceros bicornis) y la jirafa sureña (Giraffa giraffa) modulan las comunidades de murciélagos insectívoros alrededor de los abrevaderos permanentes en el Desierto del Namib. Estimamos el uso que le dan los mega herbívoros a ciertos sitios con base en transectos, en la productividad de la vegetación resumida a partir de las medidas satelitales del índice normalizado de diferencias en la vegetación (INDV) y en censos acústicos de las comunidades locales de murciélagos. Usamos modelos de ecuaciones estructurales para identificar las relaciones entre los mega herbívoros y la riqueza de especies de murciélagos con la actividad de los quirópteros durante la temporada seca (noviembre 2016 - enero 2017) y la lluviosa (febrero - mayo 2017). El uso a nivel de sitio dado por los mega herbívoros durante la temporada seca estuvo asociado positivamente con la actividad de los murciélagos-particularmente para aquellos que forrajean a cielo abierto-y la riqueza de especies por vías indirectas. Sin embargo, cuando los recursos fueron más abundantes (temporada de lluvias), estas relaciones fueron débiles. Nuestros resultados indican que las interacciones bióticas contribuyen a la distribución de las especies en áreas desérticas y sugieren que la conservación de los mega herbívoros en este ecosistema puede beneficiar indirectamente a la abundancia y la diversidad de los murciélagos insectívoros. Ya que los murciélagos suelen ser poco valorados y poco estudiados en comparación con otros mamíferos, nuestros descubrimientos sugieren que los gestores buscan soluciones a corto plazo (p. ej.: programas de guardias comunitarias de las presas de caza, protección de puntos de abastecimiento de agua cercanos a establecimientos humanos, ecoturismo) para promover indirectamente la conservación de murciélagos y que la investigación incluye los efectos de los mega herbívoros sobre la biodiversidad en otros niveles tróficos.

While relatively little is known about bats across much of Africa, globally, many bat populations are in decline due to human activities. Successful bat conservation efforts, therefore, depend on both ecological studies and research on human-bat relationships. To address these knowledge gaps about African bats and their interactions with humans, we used semi-structured interviews of pastoralists in northwestern Namibia to assess local experiences with, attitudes toward, and cultural stories about bats. Our research was conducted in conjunction with an ecological study on Namib Desert bat distributions, thus allowing for a broader understanding of the social-ecological dynamics of human-bat interactions in this region. Though only 65% of interviews were able to correctly identify bats from photographs, 100% classified these species as bats when provided with an additional description of “animals that fly at night.” A majority (77%) of interviews expressed positive attitudes toward bats and over a third (38%) provided cultural stories, offering detailed reports of myths and common meanings assigned to bats. Of those stories, 12% indicated that bats brought good luck or good rains, and 84% specified that bats represented bad luck or omens of injuries, death, disease, or lack of rains. While the primary threats of habitat loss and bushmeat hunting were never mentioned in our interviews, the influence of negative cultural stories on individual behavior could pose challenges for future bat conservation initiatives. This qualitative approach combined with ecological research may be valuable for assessing cross-cultural relationships between humans and understudied wildlife in other remote areas.

We surveyed ecologists and evolutionary biologists in American Universities to understand how they are coping with the COVID‐19 pandemic. Female respondents, assistant professors, and those who care for at least one child or teenager, were significantly more dissatisfied with their work‐life balance during this pandemic than others, and further expected these negative impacts to be long‐lived. Online teaching support, relaxed expectations on publications, the possibility of pausing the tenure clock, and an acknowledgment of “no business as usual” by administrators were thought to be effective policies in mitigating these negative impacts. This survey serves as a manifesto to what our professional community is currently experiencing, and should be used to inform academic policies directed at improving faculty productivity and welfare.

Ectoparasites were collected from Eptesicus hottentotus, the long-tailed serotine bat, caught in Namibia as part of an ecological study. Larvae of Argas transgariepinus, a blood-feeding ectoparasite of bats in Africa, were removed from 3 of 18 bats. We present scanning electron microscope images of unengorged larvae. As with other ectoparasites, this bat tick might transmit pathogens such as Borrelia and Rickettsia to their hosts as has been reported for bat ticks in Europe and North America. We screened 3 pools (25 total) of larvae of A. transgariepinus removed from the long-tailed serotine bat Eptesicus hottentotus caught in Namibia. Two microbes of unknown pathogenicity, including Rickettsia hoogstraalii, a spotted fever group pathogen, and a Rickettsiella sp. were detected by molecular techniques.

Sixty-four individuals of a macronyssid mite, Parasteatonyssus nyctinomi (Zumpt, Patterson 1951), were identified from Egyptian free-tailed bats Tadarida aegyptiaca (É. Geoffroy 1818) (Chiroptera: Molossidae) captured in the Kunene region of Namibia (southern Africa). This is the first report on P. nyctinomi in the country.

Argasid systematics remains controversial with widespread adherence to the Hoogstraal (1985) classification scheme, even though it does not reflect evolutionary relationships and results in paraphyly for the main genera of soft ticks (Argasidae), namely Argas and Ornithodoros. The alternative classification scheme, proposed by Klompen and Oliver (1993), has problems of its own: most notably paraphyly of the subgenus Pavlovskyella and the controversial grouping together of the subgenera Alectorobius, Antricola, Carios, Chiropterargas, Nothoaspis, Parantricola, Reticulinasus and Subparmatus into the genus Carios. Recent phylogenetic analyses of 18S/28S rRNA sequences and mitochondrial genomes agree with the scheme of Klompen and Oliver (1993), with regard to the paraphyly of Pavlovskyella, placement of Alveonasus, Ogadenus, Proknekalia and Secretargas in the Argasinae and placement of Carios and Chiropterargas in the Ornithodorinae (Mans et al., 2019). The Carios clade and its constituent subgenera remain controversial, since the phylogenetic position of its type species Carios (Carios) vespertilionis Latreille, 1796 (formerly Argas vespertilionis) has not been determined with confidence. The current study aimed to resolve Carios sensu lato Klompen and Oliver, 1993, and Carios sensu stricto Hoogstraal, 1985, by determining and analysing phylogenetic nuclear and mitochondrial markers for C. (C.) vespertilionis. Both the nuclear and mitochondrial markers support placement of Carios s.s. within the subfamily Ornithodorinae, but to the exclusion of the clade that includes the 6 other subgenera that are part of Carios s.l. Klompen and Oliver (1993), namely Alectorobius, Antricola, Nothoaspis, Parantricola, Reticulinasus and Subparmatus. These 6 subgenera form a monophyletic clade that might be placed as new subgenera within the genus Alectorobius, or elevated to genera. Given the substantial differences in biology among these subgenera, we propose that these 6 subgenera be elevated to genera. Thus, we propose to modify the classification scheme of Mans et al. (2019) so that the subfamily Argasinae now has six genera, Alveonasus, Argas (subgenera Argas and Persicargas), Navis, Ogadenus, Proknekalia and Secretargas, and the subfamily Ornithodorinae has nine genera, Alectorobius, Antricola (subgenera Antricola and Parantricola), Carios, Chiropterargas, Nothoaspis, Ornithodoros (subgenera Microargas, Ornamentum, Ornithodoros, Pavlovskyella and Theriodoros), Otobius, Reticulinasus and Subparmatus (genera indicated in bold).

Caimans (Crocodilia: Alligatoridae) are top-level predators in aquatic ecosystems of the Neotropics. This paper presents data on the diet of caimans from the Peruvian Amazon (principally Paleosuchus spp., but also Caiman crocodilus and Melanosuchus niger), including feeding observations and stomach content examinations. A total of 58 stomach content analyses and three in situ feeding observations were made, and incidence of gastric parasitism and external injury were also studied. Insects, crustaceans, and fish were the most frequently encountered prey in the gut of P. trigonatus, but reptiles, fish, crustaceans, and mammals composed the greatest proportion of the diet by stomach content dry mass. We report novel squamate and fish species in the diet of Amazonian caimans and overall dietary findings consistent with that of other caiman diet literature. Gastroliths were absent from C. crocodilus and M. niger, although 44% of P. trigonatus sampled contained gastroliths. Parasitic nematodes were recovered from just under half of sampled C. crocodilus and P. trigonatus and 71% of M. niger. Injury rates were low in M. niger and P. trigonatus (< 10% of individuals) while 35% of C. crocodilus were injured, most often through damage to the tail. These data on caiman diet, gut parasitism, and injury rates help provide a baseline for comparison between species and study populations.

Water abundance, distribution, and quality are key elements affecting species distributions in arid environments, yet how their interactions structure specific animal communities is often unclear. To address this knowledge gap, we examined relationships between bodies of water and bat communities in the northern Namib Desert. We predicted that water quality would be poorer (i.e., higher indices of electrical conductivity and ion concentrations) during the dry season and at artificial pools, and that bat species richness and activity would consequently be lower at these sites. We conducted extensive fieldwork at the terminus of the hot, dry season from November 2016 to January 2017 and at the conclusion of the following wet season from March to May 2017, collecting water samples and acoustic recordings of bat activity at both natural springs (n = 18) and artificial pools (n = 5). Overall activity (but not species richness) was greater during the wet season and at artificial pools, but we did not find systematic differences in water quality driven by seasonality or water body type. Although individual artificial pools harbored significantly greater bat activity, >35% of the species that we recorded were present only at natural springs. While bat species richness was reduced at saline sites, only the activity of the Zulu serotine also related to water quality. In general, water surface area was more often associated with bat activity in the Namib Desert than was water quality.

A diverse and inclusive scientific community is more productive, innovative and impactful, yet ecology and evolutionary biology continues to be dominated by white male faculty. We quantify faculty engagement in activities related to diversity and inclusion and identify factors that either facilitate or hinder participation. Through a nationwide survey, we show that faculty with underrepresented identities disproportionally engage in diversity and inclusion activities, yet such engagement was not considered important for tenure. Faculty perceived time and funding as major limitations, which suggests that institutions should reallocate resources and reconsider how faculty are evaluated to promote shared responsibility in advancing diversity and inclusion.

The Black Caiman (Melanosuchus niger) experienced a dramatic population decline in the mid-20th century, becoming extinct or locally rare over most of its range due to habitat destruction and the commercial value of its hide. As the success and re-establishment of the species is now dependent on conservation efforts throughout the Amazon basin, Black Caimans require continuous monitoring despite extensive current legal protection. Although such efforts have mitigated the threat of human harvesting, a key issue facing the species today is ecological competition from sympatric Spectacled Caimans (Caiman crocodilus). In this study, we investigated this inferred competition by detailing the dietary overlap between Black Caimans and Spectacled Caimans in the Pacaya Samiria National Reserve in 2009. Using an adaptation of the hose-Heimlich technique, we collected and then compared the stomach contents of several individuals of each species. We found that although the proportions of prey items in their...