Ran Nathan - Academia.edu (original) (raw)

Papers by Ran Nathan

Research paper thumbnail of Ergodicity breaking and lack of a typical waiting time in area-restricted search of avian predators

aRacah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel; bMovement Eco... more aRacah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel; bMovement Ecology Lab, Department of Ecology, Evolution and Behavior, Alexander Silberman Institute of Life Sciences, Faculty of Science, The Hebrew University of Jerusalem, Jerusalem, Israel.; cThe Shamir Research Institute and Department of Geography and Environmental Studies, University of Haifa, 199 Aba Hushi Boulevard, Mount Carmel, Haifa, Israel.; dBlavatnik School of Computer Science, Tel-Aviv University, Israel.

Research paper thumbnail of Estimating nest‐switching in free‐ranging wild birds: an assessment of the most common methodologies, illustrated in the White Stork ( Ciconia ciconia )

Research paper thumbnail of Home Range Size and Resource Use of Breeding and Non-breeding White Storks Along a Land Use Gradient

Frontiers in Ecology and Evolution, 2018

Research paper thumbnail of Absence of strict monogamy in the Eurasian jackdaw, Coloeus monedula

Israel Journal of Ecology & Evolution, 2021

The Eurasian Jackdaw is thought to be archetypically monogamous, but recent tagging research unco... more The Eurasian Jackdaw is thought to be archetypically monogamous, but recent tagging research uncovered extra-pair copulations in the species. Here we examined extra-pair paternity (genetic monogamy) in Eurasian jackdaws breeding in the Judean Hills, Israel, at the global edge of the species range, using a set of highly polymorphic molecular microsatellites. We found roughly a sixth of nests sampled showed deviations from monogamy, more than previously found in DNA fingerprinting studies of jackdaws, suggesting a mixed mating strategy in this population. These findings support the trend of extra-pair paternity in avian species, even when social monogamy remains the rule, and highlight the importance of continued study of species throughout their geographical range.

Research paper thumbnail of Movement ecology and sex are linked to barn owl microbial community composition

Research paper thumbnail of Movement-mediated community assembly and coexistence

Organismal movement is ubiquitous and facilitates important ecological mechanisms that drive comm... more Organismal movement is ubiquitous and facilitates important ecological mechanisms that drive community and metacommunity composition and hence biodiversity. In most existing ecological theories and models in biodiversity research, movement is represented simplistically, ignoring the behavioural basis of movement and consequently the variation in behaviour at species and individual level. However, in an age where human endeavours modify climate and land use, the behavioural processes of organisms in response to this, including movement, become critical to understanding resulting biodiversity loss. Here, we draw together research from different subdisciplines in ecology to understand the impact of individual-level movement processes on community-level patterns in species composition and coexistence. We join the movement ecology framework with the key concepts from metacommunity theory, community assembly and modern coexistence theory using the idea of emergence: various behavioural as...

Research paper thumbnail of Stochastic simulations reveal few green wave surfing populations among spring migrating herbivorous waterfowl

Nature Communications, 2019

Research paper thumbnail of A comprehensive analysis of autocorrelation and bias in home range estimation

Ecological Monographs, 2018

Research paper thumbnail of Moving in the Anthropocene: Global reductions in terrestrial mammalian movements

Science (New York, N.Y.), Jan 26, 2018

Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of... more Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of the anthropogenic footprint on animal movements have not been estimated across species. Using a unique GPS-tracking database of 803 individuals across 57 species, we found that movements of mammals in areas with a comparatively high human footprint were on average one-half to one-third the extent of their movements in areas with a low human footprint. We attribute this reduction to behavioral changes of individual animals and to the exclusion of species with long-range movements from areas with higher human impact. Global loss of vagility alters a key ecological trait of animals that affects not only population persistence but also ecosystem processes such as predator-prey interactions, nutrient cycling, and disease transmission.

Research paper thumbnail of Characterizing the Accuracy of a Self-Synchronized Reverse-GPS Wildlife Localization System

2016 15th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN), 2016

Research paper thumbnail of Topic modeling of behavioral modes using sensor data

International Journal of Data Science and Analytics, 2016

Research paper thumbnail of Extinction and vulnerability to extinction at distribution peripheries: An analysis of the Israeli breeding avifauna

Israel Journal of Zoology

ABSTRACT

Research paper thumbnail of Mechanistic models for tree seed dispersal by wind in dense forests and open landscapes

Seed dispersal and frugivory: ecology, evolution and conservation. Third International Symposium-Workshop on Frugivores and Seed Dispersal, São Pedro, Brazil, 6-11 August 2000

A study was conducted to compare wind dispersal of tree seeds in two distinct landscape structure... more A study was conducted to compare wind dispersal of tree seeds in two distinct landscape structure: dense forests and trees scattered in an open landscape, using two mathematical models against extensive seed-trap data collected in an isolated stand of Aleppo pine (Pinus halepensis) in Israel. Results showed that very dense forests produced very restricted seed shadows, with 99% of the seeds travelling less than 2.7 m. A significant difference between the distributions of dispersal distances were generated in the low landscape types - dispersal distances in dense forests were considerably shorter than in open landscapes.

Research paper thumbnail of Dispersal Biogeography

Encyclopedia of Biodiversity, 2013

Research paper thumbnail of Mechanistic Analytical Models for Long‐Distance Seed Dispersal by Wind

The American Naturalist, 2005

Research paper thumbnail of Movement Strategies of Seed Predators as Determinants of Plant Recruitment Patterns

The American Naturalist, 2008

Research paper thumbnail of How Movement Properties Affect Prey Encounter Rates of Ambush versus Active Predators: A Comment on Scharf et al

The American Naturalist, 2008

Research paper thumbnail of Flight Modes in Migrating European Bee-Eaters: Heart Rate May Indicate Low Metabolic Rate during Soaring and Gliding

Research paper thumbnail of Seed release without fire in Pinus halepensis, a Mediterranean serotinous wind-dispersed tree

Research paper thumbnail of Spread of North American wind-dispersed trees in future environments

Research paper thumbnail of Ergodicity breaking and lack of a typical waiting time in area-restricted search of avian predators

aRacah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel; bMovement Eco... more aRacah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel; bMovement Ecology Lab, Department of Ecology, Evolution and Behavior, Alexander Silberman Institute of Life Sciences, Faculty of Science, The Hebrew University of Jerusalem, Jerusalem, Israel.; cThe Shamir Research Institute and Department of Geography and Environmental Studies, University of Haifa, 199 Aba Hushi Boulevard, Mount Carmel, Haifa, Israel.; dBlavatnik School of Computer Science, Tel-Aviv University, Israel.

Research paper thumbnail of Estimating nest‐switching in free‐ranging wild birds: an assessment of the most common methodologies, illustrated in the White Stork ( Ciconia ciconia )

Research paper thumbnail of Home Range Size and Resource Use of Breeding and Non-breeding White Storks Along a Land Use Gradient

Frontiers in Ecology and Evolution, 2018

Research paper thumbnail of Absence of strict monogamy in the Eurasian jackdaw, Coloeus monedula

Israel Journal of Ecology & Evolution, 2021

The Eurasian Jackdaw is thought to be archetypically monogamous, but recent tagging research unco... more The Eurasian Jackdaw is thought to be archetypically monogamous, but recent tagging research uncovered extra-pair copulations in the species. Here we examined extra-pair paternity (genetic monogamy) in Eurasian jackdaws breeding in the Judean Hills, Israel, at the global edge of the species range, using a set of highly polymorphic molecular microsatellites. We found roughly a sixth of nests sampled showed deviations from monogamy, more than previously found in DNA fingerprinting studies of jackdaws, suggesting a mixed mating strategy in this population. These findings support the trend of extra-pair paternity in avian species, even when social monogamy remains the rule, and highlight the importance of continued study of species throughout their geographical range.

Research paper thumbnail of Movement ecology and sex are linked to barn owl microbial community composition

Research paper thumbnail of Movement-mediated community assembly and coexistence

Organismal movement is ubiquitous and facilitates important ecological mechanisms that drive comm... more Organismal movement is ubiquitous and facilitates important ecological mechanisms that drive community and metacommunity composition and hence biodiversity. In most existing ecological theories and models in biodiversity research, movement is represented simplistically, ignoring the behavioural basis of movement and consequently the variation in behaviour at species and individual level. However, in an age where human endeavours modify climate and land use, the behavioural processes of organisms in response to this, including movement, become critical to understanding resulting biodiversity loss. Here, we draw together research from different subdisciplines in ecology to understand the impact of individual-level movement processes on community-level patterns in species composition and coexistence. We join the movement ecology framework with the key concepts from metacommunity theory, community assembly and modern coexistence theory using the idea of emergence: various behavioural as...

Research paper thumbnail of Stochastic simulations reveal few green wave surfing populations among spring migrating herbivorous waterfowl

Nature Communications, 2019

Research paper thumbnail of A comprehensive analysis of autocorrelation and bias in home range estimation

Ecological Monographs, 2018

Research paper thumbnail of Moving in the Anthropocene: Global reductions in terrestrial mammalian movements

Science (New York, N.Y.), Jan 26, 2018

Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of... more Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of the anthropogenic footprint on animal movements have not been estimated across species. Using a unique GPS-tracking database of 803 individuals across 57 species, we found that movements of mammals in areas with a comparatively high human footprint were on average one-half to one-third the extent of their movements in areas with a low human footprint. We attribute this reduction to behavioral changes of individual animals and to the exclusion of species with long-range movements from areas with higher human impact. Global loss of vagility alters a key ecological trait of animals that affects not only population persistence but also ecosystem processes such as predator-prey interactions, nutrient cycling, and disease transmission.

Research paper thumbnail of Characterizing the Accuracy of a Self-Synchronized Reverse-GPS Wildlife Localization System

2016 15th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN), 2016

Research paper thumbnail of Topic modeling of behavioral modes using sensor data

International Journal of Data Science and Analytics, 2016

Research paper thumbnail of Extinction and vulnerability to extinction at distribution peripheries: An analysis of the Israeli breeding avifauna

Israel Journal of Zoology

ABSTRACT

Research paper thumbnail of Mechanistic models for tree seed dispersal by wind in dense forests and open landscapes

Seed dispersal and frugivory: ecology, evolution and conservation. Third International Symposium-Workshop on Frugivores and Seed Dispersal, São Pedro, Brazil, 6-11 August 2000

A study was conducted to compare wind dispersal of tree seeds in two distinct landscape structure... more A study was conducted to compare wind dispersal of tree seeds in two distinct landscape structure: dense forests and trees scattered in an open landscape, using two mathematical models against extensive seed-trap data collected in an isolated stand of Aleppo pine (Pinus halepensis) in Israel. Results showed that very dense forests produced very restricted seed shadows, with 99% of the seeds travelling less than 2.7 m. A significant difference between the distributions of dispersal distances were generated in the low landscape types - dispersal distances in dense forests were considerably shorter than in open landscapes.

Research paper thumbnail of Dispersal Biogeography

Encyclopedia of Biodiversity, 2013

Research paper thumbnail of Mechanistic Analytical Models for Long‐Distance Seed Dispersal by Wind

The American Naturalist, 2005

Research paper thumbnail of Movement Strategies of Seed Predators as Determinants of Plant Recruitment Patterns

The American Naturalist, 2008

Research paper thumbnail of How Movement Properties Affect Prey Encounter Rates of Ambush versus Active Predators: A Comment on Scharf et al

The American Naturalist, 2008

Research paper thumbnail of Flight Modes in Migrating European Bee-Eaters: Heart Rate May Indicate Low Metabolic Rate during Soaring and Gliding

Research paper thumbnail of Seed release without fire in Pinus halepensis, a Mediterranean serotinous wind-dispersed tree

Research paper thumbnail of Spread of North American wind-dispersed trees in future environments