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Population Ecology @populationecology.bsky.social · 27/09/2026

「個体群密度推定におけるVREHT（Vertically Reflected Exponentiated Hyperbolic Tangent）検出関数のグループ化された距離データへの拡張」

Population Ecology @populationecology.bsky.social · 18/09/2026

<REVIEW> Extending the Vertically Reflected Exponentiated Hyperbolic Tangent Detection Function for Grouped Line-Transect Data Gajanan G. Patil, Shashibhushan B. Mahadik ▶️ x.gd/AvQTK distance sampling/ ecological modeling/ population density estimation/ VREHT model/ wildlife abundance

Graphical abstract: A flexible detection model, VREHT, is proposed for grouped line-transect distance sampling. Through simulation studies and real datasets, the model demonstrates improved fit, reduced bias, and enhanced estimation accuracy compared to traditional detection functions such as half normal and hazard rate.

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Population Ecology @populationecology.bsky.social · 21/08/2026

「標識再捕獲データに基づく蚊の動態の機構論的–統計的推論」 #OpenAccess

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Population Ecology @populationecology.bsky.social · 21/08/2026

「一般化線形モデルにおける統計的検定の代用としてのAICの誤用」

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Population Ecology @populationecology.bsky.social · 19/08/2026

#OpenAccess Mechanistic-Statistical Inference of Mosquito Dynamics From Mark-Release-Recapture Data Nga Nguyen et al ▶️ doi.org/10.1002/1438... Aedes aegypti/ Brownian motion/ maximum likelihood/ reaction–diffusion

Graphical abstract: Mark-release-recapture data contain valuable information on mosquito dispersal and survival, but this information is only indirectly observed through trap counts. We combine a mechanistic diffusion model with a statistical observation model to infer movement, mortality, and trap efficiency jointly. Applied to sterile male Aedes aegypti released in an urban field experiment in Cuba, this approach yields interpretable field estimates that are useful for the design of release-based control strategies.

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Population Ecology @populationecology.bsky.social · 19/08/2026

<NOTES AND INSIGHTS> Misuse of AIC as a Substitute for Statistical Tests in Generalized Linear Models Eiiti Kasuya ▶️ x.gd/XiV2W explanatory variable/ hypothesis testing/ information criterion/ model selection/ type I error rate

Graphical abstract: AIC and its modified version, AICc, have been widely used in ecology for data analysis, including the generalized linear models (GLMs). When the null model is true, the error rate when selecting a model using AIC or AICc is analyzed numerically.

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Population Ecology @populationecology.bsky.social · 15/07/2026

「切断の帰結：実験生息地ネットワークの分断がもたらす個体群サイズと安定性の低下」 #OpenAccess

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Population Ecology @populationecology.bsky.social · 02/07/2026

#OpenAccess After the Cut: Sizes and Stability of Populations Decline After Disconnecting Experimental Habitat Networks Yiwen Xu, J Angus Webb, William D Bovill 👉 doi.org/10.1002/1438... connectivity disruption/ network topology/ patchy population/ population connectivity

Graphical abstract: We removed the most critical connection(s) of experimental habitat networks inhabited by Daphnia carinata to completely separate them into two sub-networks. The results showed reduced population size and stability across different topologies after the loss of connectivity. The results suggest that losing key connections can greatly increase extinction risk of populations in habitat networks.

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Population Ecology @populationecology.bsky.social · 19/06/2026

「侵入種ミナミオオガシラ（Boiga irregularis）の閉鎖個体群における実験的操作への個体群動態の応答」 #OpenAccess

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Population Ecology @populationecology.bsky.social · 19/06/2026

#OpenAccess Demographic Responses to Experimental Manipulation of an Enclosed Population of Invasive Brown Treesnakes (Boiga irregularis) Amanda M. Kissel et al doi.org/10.1002/1438... Bayesian statistics/ invasive species control/ population growth rate/ Pradel model

Graphical abstract: We evaluated demographic responses of an enclosed population of brown treesnakes to two experimental perturbations: supplemental feeding followed by removal of the adult and sub-adult cohort 2 years later. Our results indicate that adding food to the system increased the population growth rate by 50% within 6 months and that removing the adults and large sub-adults temporarily suppressed growth and survival; however, the population growth rate recovered within a year. These findings provide insight into population dynamics that may influence current control efforts on the island of Guam and any future invasions into new areas.

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Population Ecology @populationecology.bsky.social · 21/05/2026

「異なる摂食様式をもつ植食性昆虫が外来植物セイタカアワダチソウに及ぼす影響：誘導応答および資源配分の変化」

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Population Ecology @populationecology.bsky.social · 21/05/2026

Effects of Insect Herbivores With Different Feeding Modes on the Exotic Plant Solidago altissima: Changes in Induced Responses and Resource Allocation Ida Kollberg, Noboru Katayama, Takayuki Ohgushi x.gd/fH8le Corythucha marmorata/ Uroleucon nigrotuberculatum

Graphical abstract: This study examined how the exotic plant Solidago altissima responds to herbivory by two insect species with contrasting feeding modes: sap-feeding aphids and mesophyll-feeding lace bugs. Using a greenhouse experiment, we measured plant growth, water content, elemental composition, and phenolics across leaves, stems, and roots. Lace bug herbivory markedly reduced leaf dry mass and stem water content and altered nitrogen allocation patterns, including a reduced proportion of nitrogen allocated to leaves. In contrast, aphid herbivory caused no significant changes. These results indicate that S. altissima exhibits stronger physiological responses to mesophyll-feeding lace bugs than to aphids.

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Population Ecology @populationecology.bsky.social · 23/04/2026

We are pleased to introduce the cover images for our 2026 issues! Check out the thread below 🧵👇

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Reposted by Population Ecology

Population Ecology @populationecology.bsky.social · 31/03/2026

CALL FOR PAPERS!! Special Feature in Population Ecology "Nonlinearity in Structured Population Models" Proposal deadline: June 30, 2026 Manuscript deadline: December 31, 2026 Check further details here: esj-journals.onlinelibrary.wiley.com/pb-assets/hu...

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Population Ecology @populationecology.bsky.social · 31/03/2026

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Population Ecology @populationecology.bsky.social · 18/03/2026

「中央ヨーロッパのハイタカ (Accipiter nisus)の繁殖期における食性：土地被覆、餌資源、および被食種の特性との関係」🦅

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Population Ecology @populationecology.bsky.social · 18/03/2026

Diet of Breeding Eurasian Sparrowhawks (Accipiter nisus) in Relation to Land Cover, Food Supply, and Prey Species Characteristics in Central Europe Tomáš Dvořák, Jan Riegert esj-journals.onlinelibrary.wiley.com/share/JXAPVD... diet composition/ prey selection/ #ornithology

Graphical abstract: In this study, we examined the relationships between land cover, food supply, and the diet composition of breeding Eurasian sparrowhawks (Accipiter nisus) and tested the effect of several prey species characteristics on the sparrowhawks' prey selection. Land cover affected the structure of food supply as well as the sparrowhawks' diet composition. Intermediate body mass, lower population density, and brighter plumage colouration of prey species were associated with increased vulnerability to sparrowhawk predation.

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Population Ecology @populationecology.bsky.social · 06/03/2026

「北海道渡島半島における問題グマの個体数推定」 🐻 #OpenAccess 特集「ヒグマ個体群管理」内の一報です特集一覧はこちら： esj-journals.onlinelibrary.wiley.com/doi/toc/10.1...

esj-journals.onlinelibrary.wiley.com

Brown Bear Population Management: Population Ecology

Click on the title to browse this issue

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Reposted by Population Ecology

Population Ecology @populationecology.bsky.social · 06/03/2026

<SPECIAL FEATURE> #BrownBear Population Management Estimation of the Number of Nuisance Bears in the Oshima Peninsula, Hokkaido Hifumi Tsuruga, Mami Kondo, Tsutomu Mano doi.org/10.1002/1438... condition by harmfulness/ conflict indicator/ damage and occurrence reports #OpenAccess

Graphical abstract: In this study, we aimed to estimate the number of nuisance bears based on damage and occurrence reports collected from 2009 to 2023 in the Oshima Peninsula, Hokkaido. For the estimation, we assessed the harmfulness level (from Condition 0 to 3) of the bears based on the details of the reports and developed a method to remove double or more overcounts of a bear derived from multiple reports on the same single bear. Estimating the number of nuisance individuals involved in conflict by setting a specific criterion provides a more valuable evaluation indicator for adaptive management than simply using the number of occurrences alone.

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Population Ecology @populationecology.bsky.social · 06/03/2026

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Population Ecology @populationecology.bsky.social · 06/03/2026

「インドにおける猛禽類群集構造の決定要因：機能的・空間的アプローチの統合」🦅 #Ornithology

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Population Ecology @populationecology.bsky.social · 26/02/2026

Drivers of Raptor Community Structure in India: An Integrated Functional and Spatial Approach Joel Soniya Cecil Christopher, Jan Riegert esj-journals.onlinelibrary.wiley.com/share/XPHUTV... dietary overlap/ functional traits/ habitat preferences/ principal coordinates of neighbor matrices (PCNM)

Graphical Abstract: This study examines how habitat types, functional traits, and diets influence the presence and coexistence of raptor and owl species in southern India. By combining species traits, spatial data, and diet patterns, it highlights the ecological factors shaping their communities across different landscapes.

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Population Ecology @populationecology.bsky.social · 26/02/2026

「個体群生態学における公正比較を目的とした再スケーリング（balancing）が比較結果にもたらす帰結に関する注意喚起」

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Population Ecology @populationecology.bsky.social · 26/02/2026

<NOTES & INSIGHTS> A Cautionary Note Regarding the Consequences of Balancing for Fair Comparisons in Population Ecology Christina M. Hernández et al esj-journals.onlinelibrary.wiley.com/share/W44A53... comparative demography/ matrix population model (MPM)/ post-breeding census/ pre-breeding census

Graphical Abstract: The mathematical approach of balancing removes distortion due to population structure for transient population analysis, but some distortion is the result of true biological processes. Using a large dataset of matrix population models from plants and animals, we demonstrate that balancing changes biological interpretation of demographic resilience (a transient analysis). We argue that meaningful comparisons require tailored approaches that respect the structure and context of demographic data.

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Population Ecology @populationecology.bsky.social · 31/01/2026

「暗闇内の移動：ヨーロッパの洞窟サンショウウオにおける空間的個体群生態の解明」 #OpenAccess

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Population Ecology @populationecology.bsky.social · 31/01/2026

#OpenAccess Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders Giacomo Rosa, Andrea Costa, Sebastiano Salvidio doi.org/10.1002/1438... amphibian/ cave environment/ home range/ spatial capture–recapture/ Speleomantes strinatii

Graphical abstract: We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals.

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Population Ecology @populationecology.bsky.social · 31/01/2026

「乾季と雨季の変動下で：ブラジル半乾燥地域の人工貯水池における淡水巻貝の季節応答」🐌 #OpenAccess

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Population Ecology @populationecology.bsky.social · 31/01/2026

#OpenAccess Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region Lucas Henrique Sousa da Silva et al doi.org/10.1002/1438... caatinga/ dry forests/ Gastropoda/ invasive species/ seasonality

Graphical abstract: We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year, reflecting contrasting ecological strategies. These patterns are especially relevant for understanding how native and invasive species respond to climate seasonality in human-altered freshwater environments.

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Population Ecology @populationecology.bsky.social · 31/01/2026

「北海道のヒグマ管理の政策転換にかかわる社会的背景：積極的駆除から保全志向管理を経て順応管理へ」🐻 特集「ヒグマ個体群管理」内の一報です特集一覧はこちら： esj-journals.onlinelibrary.wiley.com/doi/toc/10.1...

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Population Ecology @populationecology.bsky.social · 31/01/2026

<FORUM: #BrownBear Population Management> The Social Background of Policy Transformations in Bear Management in Hokkaido, Japan: From Aggressive Culling and Conservation-Oriented Management Toward Adaptive Management Takashi Saitoh, Tsutomu Mano esj-journals.onlinelibrary.wiley.com/share/KK3YNF...

Graphical abstract: The effects of depopulation on bear attacks in northeastern Japan.

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Population Ecology @populationecology.bsky.social · 18/12/2025

Meet our EiC Hiroyuki Yokomizo at the booth LT5! #bes2025

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Population Ecology @populationecology.bsky.social · 02/11/2025

#個体群生態学会奨励賞受賞記念論文深谷肇一氏、ほか occumb: eDNAメタバーコーディングデータのサイト占有モデリングのためのRパッケージ #OpenAccess

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Population Ecology @populationecology.bsky.social · 02/11/2025

#OpenAccess occumb: An R package for site occupancy modeling of eDNA metabarcoding data Keiichi Fukaya*, Yuta Hasebe doi.org/10.1002/1438... *recipient of 13th Population Ecology Young Scientist Award🏆 amplicon sequencing/ Bayesian inference/ hierarchical modeling

This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using the package. An example application targeting aquatic insects highlights the effectiveness of using biological replicates to minimize false-negative results in species detection.

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Population Ecology @populationecology.bsky.social · 02/11/2025

「外来ネズミ根絶後における２種のカツオドリ個体群の回復過程：過渡的動態とロジスティック漸近成長モデルの統合的解析」 #OpenAccess

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Population Ecology @populationecology.bsky.social · 02/11/2025

#OpenAccess Combining transient dynamics and logistic-asymptotic growth to study the recovery of two seabird populations after rat eradication Merlène Saunier et al doi.org/10.1002/1438... density-dependent/ population dynamics/ recovery/ tropical seabirds/ #ornithology

This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century. The analysis of transient dynamics, which occur after environmental disturbances, helped to better understand the discrepancies between observed field growth and theoretical estimates based on population models, revealing disruptions in age structure likely due to past rat predation.

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Population Ecology @populationecology.bsky.social · 02/11/2025

「コクヌストモドキTribolium castaneumの歩行活性における地理的変異」🪲))) #OpenAccess

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Population Ecology @populationecology.bsky.social · 24/09/2025

「ネットワークトポロジーは実験的生息地ネットワークにおける個体群の時間的変動を駆動する」 #OpenAccess

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Population Ecology @populationecology.bsky.social · 24/09/2025

「カナダ東部におけるハマキガの一種の予測困難な個体群動態」🐛 #OpenAccess

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Population Ecology @populationecology.bsky.social · 05/08/2025

「慢性的採食が爆発的に増加する大型草食動物個体群の生活史特性に与える影響」🦌 #OpenAccess

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Population Ecology @populationecology.bsky.social · 05/08/2025

「気候と上昇気流が大型渡り鳥の個体数変動に与える影響」

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Population Ecology @populationecology.bsky.social · 05/08/2025

Climate and en route thermals affect long-term population dynamics of soaring birds Ryo Ogawa, Guiming Wang et al esj-journals.onlinelibrary.wiley.com/share/MAIAAX... climate change/ integrated population model/ Pacific Decadal Oscillation/ stage-specific survival #ornithology #migration

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Population Ecology @populationecology.bsky.social · 05/08/2025

「隣接個体の個体群や種に関する特性が植物の形質間の関係と成長パフォーマンスに影響する」 #OpenAccess

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Population Ecology @populationecology.bsky.social · 10/06/2025

#個体群生態学会奨励賞受賞記念論文奥崎穣「陸上節足動物において体サイズ進化がもたらす交尾戦略の多様化ならびに交尾器進化と系統分岐への波及効果」 #OpenAccess

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Population Ecology @populationecology.bsky.social · 10/06/2025

REVIEW #OpenAccess Body size evolution as a catalyst for diversification of copulation strategies and its spillover effects on genital evolution and phylogenetic divergence in terrestrial arthropods Yutaka Okuzaki, Recipient of 12th Population Ecology Young Scientist Award doi.org/10.1002/1438...

doi.org

Body size evolution as a catalyst for diversification of copulation strategies and its spillover effects on genital evolution and phylogenetic divergence in terrestrial arthropods

A scenario in which divergent selection derived from ecological environments leads to genital divergence through body size evolution.

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