Mario B Pesendorfer

Mario B Pesendorfer
University of Natural Resources and Life Sciences Vienna | boku · Institute of Forest Ecology

Mag. rer. nat., PhD

About

49
Publications
18,626
Reads
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721
Citations
Citations since 2016
39 Research Items
675 Citations
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2016201720182019202020212022050100150
Introduction
Terrestrial ecologist interested in behavior, life history strategies, population, community, and conservation ecology. Passionate about science communication and inclusivity. Long-term ecological research, field and lab experiments, statistical, theoretical, and simulation modeling. R nerd. Currently investigating the fitness consequences of mast-seeding with Georg Gratzer at BOKU IFE, focusing on temperate forests of N America and Europe.
Additional affiliations
August 2019 - present
University of Natural Resources and Life Sciences Vienna
Position
  • PostDoc Position
Description
  • Sporadic mast-seeding: wasted resources or successful strategy?
February 2014 - December 2019
Cornell University
Position
  • PostDoc Position
Description
  • seed dispersal dynamics in California oaks; population and movement ecology of Florida scrub-jays
July 2008 - August 2014
University of Nebraska at Lincoln
Position
  • Research Assistant
Description
  • bird capture, transport, maintenance for several species of corvids, including Clark's nutcracker, pinyon jay, Western scrub-jay
Education
August 2008 - August 2014
University of Nebraska at Lincoln
Field of study
  • Ecology, Evolution & Behavior
August 2003 - July 2007
University of Vienna
Field of study
  • Biology, Zoology

Publications

Publications (49)
Article
Full-text available
Seed dispersal mutualisms with scatter-hoarders play a crucial role in population dynamics of temperate large-seeded trees. These behaviors shape seed dispersal patterns, which can be applied to conservation of populations, communities, and even ecosystems dominated by large-seeded trees. We draw on a growing body of literature to describe the ecol...
Article
Full-text available
1. Masting, the synchronized production of variable seed crops, is widespread among woody plants, but there is no consensus about the underlying proximate mechanisms. To understand this population-level behaviour, it is necessary to dissect the behaviour of individual trees as well as the interactions that synchronize them. 2. Here, we test a model...
Article
Full-text available
1. Seed dispersal by birds is central to the passive restoration of many tree communities. Reintroduction of extinct seed dispersers can therefore restore degraded forests and woodlands. To test this hypothesis, we constructed a spatially-explicit simulation model, parameterized with field data, to consider the effect of different seed dispersal sc...
Article
Full-text available
Masting-temporally variable seed production with high spatial synchrony-is a pervasive strategy in wind-pollinated trees that is hypothesized to be vulnerable to climate change due to its correlation with variability in abiotic conditions. Recent work suggests that aging may also have strong effects on seed production patterns of trees, but this po...
Article
Full-text available
Populations of many long-lived plants exhibit spatially synchronized seed production that varies extensively over time, so that seed production in some years is much higher than on average, while in others, it is much lower or absent. This phenomenon termed masting or mast seeding has important consequences for plant reproductive success, ecosystem...
Conference Paper
Full-text available
Austria Biogenic volatile organic compounds (BVOCs) emitted by plants consist of a broad range of gasses which serve purposes such as protecting against herbivores, communicating with insects and neighboring plants, or increasing the tolerance to environmental stresses. Evidence is accumulating that the composition of BVOC blends plays an important...
Article
Full-text available
Significant gaps remain in understanding the response of plant reproduction to environmental change. This is partly because measuring reproduction in long-lived plants requires direct observation over many years and such datasets have rarely been made publicly available. Here we introduce MASTREE+, a dataset that collates reproductive time-series d...
Article
We studied the timing of budburst of valley oak (Quercus lobata Ne) at Hastings Reservation, central coastal California. Similar to other taxa, budburst was advanced by warmer temperatures. Over the 30-year study period, however, there were no significant trends in either air temperature or the timing of budburst, except during the 20142016 drought...
Article
In mast-seeding species, strong annual variation in seed production is assumed to drive seed fate and ultimately plant recruitment. However, the effects of temporal variation in seed crops on spatial patterns of seed rain and recruitment are poorly understood , in part because of limited data on fine-scale spatial variation of seed deposition. To i...
Article
Masting, the intermittent and synchronous production of large seed crops, can have profound consequences for plant populations and the food webs that are built on their seeds. For centuries, people have recorded mast crops because of their importance in managing wildlife populations. In the past 30 years, we have begun to recognize the importance o...
Article
The timing of seed production and release is highly relevant for successful plant reproduction. Ecological disturbances, if synchronized with reproductive effort, can increase the chances of seeds and seedlings to germinate and establish. This can be especially true under variable and synchronous seed production (masting). Several observational stu...
Article
In disturbance-prone ecosystems, fitness consequences of plant reproductive strategies are often determined by the relative timing of seed production and disturbance events, but the role of disturbances as proximate drivers of seed production has been overlooked. We use long-term data on seed production in Quercus chapmanii , Q. geminata and Q. ino...
Poster
Full-text available
El comportamiento de los animales cuando almacenan semillas determina el patrón espacial de la dispersión de muchas especies de plantas. Este trabajo evalúa el efecto de la territorialidad, la distancia recorrida desde la fuente de semillas y las preferencias espaciales a distintas escalas en el patrón espacial de dispersión de semillas y de plántu...
Article
Full-text available
Volatile organic compounds (VOCs) emitted by plants consist of a broad range of gasses which serve purposes such as protecting against herbivores, communicating with insects and neighboring plants, or increasing the tolerance to environmental stresses. Evidence is accumulating that the composition of VOC blends plays an important role in fulfilling...
Article
Full-text available
Mast seeding, the synchronized interannual variation in seed production of trees, is a well-known bottom-up driver for population densities of granivorous forest rodents. Such demographic effects also affect habitat preferences of the animals: After large seed production events, reduced habitat selectivity can lead to spillover from forest patches...
Article
For plants with seeds dispersed by scatter‐hoarders, decision‐making by animals when caching determines the spatial pattern of seed dispersal and lays the initial template for recruitment, driving the regeneration of many species. However, the mechanism by which animal behaviour shapes seed distributions in spatially complex landscapes is not well...
Article
Full-text available
Synchronised and quasi-periodic production of seeds by plant populations, known as masting, is implicated in many ecological processes, but how it arises remains poorly understood. Flowering and pollination dynamics are hypothesised to provide the mechanistic link for the observed relationship between weather and population-level seed production. W...
Article
Full-text available
The cover image is based on the Letter Flowering synchrony drives reproductive success in a wind‐pollinated tree by Michał Bogdziewicz et al., https://doi.org/10.1111/ele.13609. image
Article
Full-text available
Annually variable and synchronous seed production, or masting, is often correlated with environmental factors and in oaks involves differential pollination success that depends on phenological synchrony in flowering. The synchronization of phenology of flowering was thought to be driven by temperature during flowering (micro-climatic hypothesis). W...
Article
Natal dispersal is a crucial life-history trait that affects both individual fitness and population structure, yet drivers of variation in dispersal probability and distance are difficult to study in wild populations. In cooperatively breeding species, individuals typically delay dispersal beyond their first breeding season and remain on the natal...
Article
1.Plant species allocate resources to multiple defensive traits simultaneously, which often leads to so‐called defence syndromes, i.e. suites of traits that are co‐expressed. While reports of ontogenetic variation in plant defences are commonplace, no research to date has tested for ontogenetic shifts in defence syndromes. In addition, we still kno...
Article
Full-text available
Highly variable and synchronised production of seeds by plant populations, known as masting, is implicated in many important ecological processes, but how it arises remains poorly understood. The lack of experimental studies prevents underlying mechanisms from being explicitly tested, and thereby precludes meaningful predictions on the consequences...
Article
Full-text available
Trees are commonly thought to increase their seed production before death. We tested this terminal investment hypothesis using long-term data on rowan trees ( Sorbus aucuparia ) and found no support. Rather, seed production declined significantly before death, which points to the potential detrimental effects of reproductive senescence on regenerat...
Article
Premise of the study: The influence of weather conditions on masting and the ecological advantages of this reproductive behavior have been the subject of much interest. Weather conditions act as cues influencing reproduction of individual plants, and similar responses expressed across many individuals lead to population-level synchrony in reproduc...
Article
Full-text available
Tool use, the manipulation of one object to change the state of another, is found in <1% of animal taxa and most often observed in captivity. Here, we report the observation of tentative tool use in a wild striped skunk (Mephitis mephitis), captured by a trail camera in the front yard of a hobby naturalist who shared the photographs on social media...
Article
To reduce the vulnerability of their small body size, common marmosets live in large and cohesive social groups. Thus, we hypothesized that in order to compensate for small body size and predation risk, individuals of common marmosets will stay gathered rather than scattered when foraging for eggs and/or nestling birds. Furthermore, in order to avo...
Article
Seed dispersal and predation play important roles in plant life history by contributing to recruitment patterns in the landscape. Mast-seeding extensive synchronized inter-annual variability in seed production is known to-in uence the activity of acorn consumers at source trees, but little is known about its e ect on post-dispersal fl ff predation....
Article
Full-text available
Mistletoes are a widespread group of plants often considered to be hemiparasitic, having detrimental effects on growth and survival of their hosts. We studied the effects of the Pacific mistletoe, Phoradendron villosum, a member of a largely autotrophic genus, on three species of deciduous California oaks. We found no effects of mistletoe presence...
Article
Full-text available
We investigated the role of species- and community-wide seed production by a community of oaks (Quercus spp.) in influencing tree attendance and aggression among California scrub-jays (Aphelocoma californica), corvids that are seed dispersal mutualists, and acorn woodpeckers (Melanerpes formicivorus), near-exclusive seed predators. We tested the hy...
Article
We investigated spatial synchrony of acorn production by valley oaks (Quercus lobata) among individual trees at the within-population, local level and at the among-population, statewide level spanning the geographic range of the species. At the local level, the main drivers of spatial synchrony were water availability and flowering phenology of ind...
Article
Full-text available
Scatter-hoarding by corvids (crows, jays, magpies and nutcrackers) provides seed dispersal for many large-seeded plants, including oaks and pines. When hoarding seeds, corvids often choose non-random locations throughout the landscape, resulting in differential survival of seeds. In the context of habitat restoration, such disproportional storing o...
Article
Masting, the highly variable production of synchronized large seed crops, is a common reproductive strategy in plant populations. In wind-pollinated trees, flowering and pollination dynamics are hypothesized to provide the mechanistic link for the well-known relationship between weather and population-level seed production. Several hypotheses make...
Article
The terminal investment hypothesis, which proposes that reproductive investment should increase with age-related declines in reproductive value, has garnered support in a wide range of animal species, but has not been previously examined in long-lived plants such as trees. We tested this hypothesis by comparing relative acorn production and radial...
Article
1. In communities of large-seeded tree species, generalist seed hoarders often link the temporally variable dynamics of various species in ways that can result in indirect ecological interactions. A special case of such interactions is "apparent predation" – when variation in seed production of one tree species changes the outcome of the interactio...
Article
Although the functional basis of variable and synchronous seed production (masting behavior) has been extensively investigated, only recently has attention been focused on the proximate mechanisms driving this phenomenon. We analyzed the relationship between weather and acorn production in 15 species of oaks (genus Quercus) from three geographic re...
Article
Full-text available
Spatial and temporal variation in resource distribution affect the movement and foraging behavior of many animals. In the case of animal-dispersed trees, numerous studies have addressed masting—the synchronized variation in seed production between years—but the fitness consequences of spatial variation in seed production within a year are unclear....
Article
Full-text available
Summary 1. Corvids (crows, jays, magpies and nutcrackers) are important dispersers of large-seeded plants. Studies on captive or supplemented birds suggest that they flexibly adjust their scatter-hoarding behavior to the context of social dynamics and relative seed availability. Because many corvid-dispersed trees show high annual variation in seed...
Article
Pollen limitation is a key assumption of theories that explain mast seeding, which is common among wind-pollinated and woody plants. In particular, the pollen coupling hypothesis and pollination Moran effect hypothesis assume pollen limitation as a factor that synchronizes seed crops across individuals. The existence of pollen limitation has not, h...
Article
This dissertation examines the interaction between large-seeded trees and seed dispersal by scatter-hoarding corvids (crows, jays, magpies & nutcrackers), and focuses on the acorn production of oaks (Quercus spp.) on Santa Cruz Island (SCI) in Channel Island National Park (CINP), CA, and its effect on scatter-hoarding behavior of endemic island scr...
Article
Full-text available
. Island scrub oak (Quercus pacifica), a keystone chaparral species on Santa Rosa, Santa Cruz, and Santa Catalina islands, provides habitat for a diverse assemblage of plant and animal species. The restoration of oak habitat is a management priority, but little is known about Q. pacifica stand structure and acorn production, 2 parameters that are i...
Conference Paper
Full-text available
Island scrub oak (Quercus pacifica), a keystone chaparral species on Santa Rosa, Santa Cruz, and Santa Catalina islands, provides habitat for a diverse assemblage of plant and animal species. The restoration of oak habitat is a management priority, but little is known about Q. pacifica stand structure and acorn production, 2 parameters that are imp...
Article
Full-text available
Background: Social conformity is a cornerstone of human culture because it accelerates and maintains the spread of behaviour within a group. Few empirical studies have investigated the role of social conformity in the maintenance of traditions despite an increasing body of literature on the formation of behavioural patterns in non-human animals. T...
Data
Photograph of a marmoset performing the push action during a training session (5.57 MB TIF)
Data
Photograph of a marmoset performing the pull action during a training session (5.95 MB TIF)
Data
Training constrained groups: a) pull condition, b) push condition (0.07 MB DOC)
Data
Free condition: participation, first contact and successful manipulation (0.05 MB DOC)
Conference Paper
The observation of a common behaviour in a group that has arisen independently of genetic or ecological factors has led researchers to speak of traditions. Once a novel behaviour has been adopted by a group member, social learning leads to transmission throughout the group. Social conformity then stabilizes the application of this new behaviour ove...

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Projects

Projects (3)
Project
Proximate and ultimate causes of mast seeding
Project
We investigate the drivers and consequences of masting in a number of California oak species.