Interactions between 2 Mediterranean rodent species: Habitat overlap and use of heterospecific cues

Cassaing, Jacques; Rivière, Bettina Le Proux de la; Donno, Fabrice De; Martínez‐García, Esteban; Thomas, Camille

doi:10.2980/20-2-3560

Cited by 8 publications

(5 citation statements)

References 46 publications

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“…2). Species-related differences in the isotopic signatures of the two dominant rodent species may be explained by diet differences and microhabitat use, both supporting coexistence (Stenseth et al, 2002;Cassaing et al, 2013). Previous experience with live-trapping and marking of A. flavicollis in the cormorant colony (Jasiulionis, unpublished) allowed us to conclude that movement between zones was very limited: we did not find any marked animals using multiple zones during the same year.…”

Section: Stable Isotopes Showing Small Mammal Diet Differences In Varsupporting

confidence: 70%

Immediate increase in isotopic enrichment in small mammals following the expansion of a great cormorant colony

Balčiauskas¹,

Skipitytė²,

Jasiulionis³

et al. 2018

Biogeosciences

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Abstract. Colonies of great cormorants (Phalacrocorax carbo) impact terrestrial ecosystems through the transport of nutrients from aquatic to terrestrial ecosystems. Deposited guano overload the ecosystem with N and P, change soil pH and damage vegetation. The ways in which small mammals are impacted, however, are little known. We aimed to evaluate the effects of an expanding great cormorant colony, testing if the expansion immediately increased the input of biogens into the forest ecosystem and, further, if the growing influence of the colony was reflected in basal resources (plants and invertebrates) and the hair of small mammals. δ15N and δ13C signatures were analyzed in granivorous yellow-necked mice (Apodemus flavicollis), omnivorous bank voles (Myodes glareolus) and basal resources of animal and plant origin from the territory of a colony of great cormorants situated near the Baltic Sea in west Lithuania. We found that biogens transferred by great cormorants to the terrestrial ecosystem affected the potential foods of the small mammals and led to highly elevated and variable δ15N values. An increase of the size of the colony in 2015 resulted in isotopic enrichment of the small mammals in the zone of expansion in comparison to levels in 2014. The increase of δ15N in A. flavicollis was 7.5 % (p < 0.05) in the ecotone and 5.7 % in the expansion zone. The decrease in δ13C signatures in A. flavicollis was 4.5 % (p < 0.1) in the expansion zone and 3.1 % (p < 0.001) in the colony. In M. glareolus, the decrease in δ13C signatures was 8.5 % in the expansion zone, 3.3 % (p < 0.1) in the control zone and 2.6 % in the ecotone. Isotopic niches (central ellipses) of A. flavicollis in the colony and between the control and expansion zones were separated in 2014 and 2015, while they partially overlapped in the ecotone. The isotopic niches of M. glareolus in 2014 and 2015 were separated in the ecotone and had a small overlap in the colony. For most of the resources tested, the isotopic signatures in the established colony area were significantly higher than in the rest of cormorant-inhabited area. In the colony, the δ15N values in plants (16.9 ± 1.1 ‰) were higher than in invertebrates (13.6 ± 0.4 ‰). In the ecotone, the δ15N values were 12.0 ± 1.4 in plants and 14.7 ± 0.04 ‰ in invertebrates, while in the expansion zone they were 7.2 ± 3.0 and 9.9 ± 3.8 ‰, respectively. δ15N-rich resources led to increased δ15N values in the hair of A. flavicollis and M. glareolus. Thus, biogens from the great cormorant colony immediately affected small mammals through their food sources.

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Section: Stable Isotopes Showing Small Mammal Diet Differences In Varsupporting

confidence: 70%

Immediate increase in isotopic enrichment in small mammals following the expansion of a great cormorant colony

Balčiauskas¹,

Skipitytė²,

Jasiulionis³

et al. 2018

Biogeosciences

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“…Furthermore, it was clear from the third experiment that individuals’ shelter choice behavior was influenced by chemical cues of another species. Although not as widely documented as conspecific cueing, heterospecific cueing can be an important factor in shelter or habitat choice in animals (rodents: Cassaing et al, 2013 ; snakes: Waye & Gregory, 1993 ; birds: Tolvanen et al, 2020 ). Even slight attraction to heterospecific cues can lead to important mixed-species grouping dynamics, as seen in terrestrial isopods, Porcellio scaber and Oniscus asellus ( Broly et al, 2016 ) and in bombardier beetles of genus Brachinus ( Schaller et al, 2018 ).…”

Section: Discussionmentioning

confidence: 99%

Conspecific and heterospecific cueing in shelter choices of Blaptica dubia cockroaches

Freeberg,

Risner,

Lang

et al. 2024

PeerJ

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Background Like many cockroaches, Argentinian wood roaches, Blaptica dubia, prefer darker shelters over lighter shelters. In three experiments, we asked whether chemical cues from other roaches might influence shelter choice, a process known as conspecific or heterospecific cueing, depending on whether the cues come from an individual of the same or a different species, respectively. Methods Each experiment involved trials with focal B. dubia cockroaches in testing arenas containing plastic shelters of varying levels of darkness, with filter paper under each shelter acting as a carrier for chemical cues. In Experiment 1, we tested female and male B. dubia cockroaches with two shelters matched for darkness but differing in cues (conspecific vs. none). The shelter with no cue contained a blank filter paper as a control. In Experiment 2 (conspecific cueing) and Experiment 3 (heterospecific cueing), we tested B. dubia cockroach choices for lighter or darker shelters with filter papers containing chemical cues of other roaches or no chemical cues. For the conspecific cueing study of Experiment 2, we used chemical cues from other B. dubia cockroaches. In contrast, for the heterospecific cueing study of Experiment 3, we used chemical cues from a different species, the death’s head cockroach, Blaberus craniifer. Results In Experiment 1, B. dubia cockroaches overwhelmingly preferred shelters with conspecific chemical cues over darkness-matched shelters without cues. In Experiments 2 and 3, they strongly preferred darker shelters, especially when chemical cues were present. Additionally, they were more likely to be under the lighter shelter when chemical cues were present there. These results reveal that the public information B. dubia cockroaches gain from chemical cues—including those from other species—can drive shelter choices in this species.

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“…The most abundant species in this system has previously been shown to exhibit DDD based on conspecific densities (Denomme-Brown et al in review). Additionally, while not as well established as in other taxa, there is evidence of heterospecific attraction in small mammals (Cassaing et al 2013).…”

Section: Introductionmentioning

confidence: 90%

“…For instance, high densities of heterospecifics could indicate areas of increased interspecific competition and the possibility for positive interspecific DDD (Tilman 1987, Seppänen et al 2007). Alternatively, in much the same way that habitat copying occurs amongst conspecifics, heterospecific attraction (Mönkönon et al 1999) is exhibited by numerous species (Seppänen et al 2007, Parejo et al 2008, Cassaing et al 2013, Szymkowiak et al 2017, with increased density of heterospecifics causing animals to be less likely to disperse from or more likely to settle in an area. Heterospecific attraction occurs because heterospecific presence can help individuals assess the fitness prospects in possible breeding patches (Parejo et al 2004) or indicate information about food resources (Seppänen et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Examining Interspecific density-dependent dispersal in forest small mammals

Denomme-Brown

Cottenie

Falls

et al. 2020

Preprint

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The effects of conspecific densities on dispersal have been well documented. However, while positive and negative density-dependent dispersal based on conspecific densities are often shown to be the result of intraspecific competition or facilitation respectively, the effects of heterospecific densities on dispersal are examined far less frequently. This despite the potential for the analogous processes of interspecific competition and heterospecific attraction to influence dispersal. Here we use 51 years of live-trapping data on deer mouse (Peromsycus maniculatus), eastern chipmunk (Tamias striatus), red-backed vole (Myodes gapperi), and jumping mice (Napaeozapus insignis and Zapus hudsonius) to examine the effects of both conspecific and heterospecific densities on dispersal frequency. In terms of conspecific densities, jumping mice were more likely to disperse from areas of low conspecific densities, while red-backed voles and chipmunks did not respond to conspecific densities in their dispersal frequencies. When considering interspecific density effects, while there were no statistically clear effects of density on dispersal frequency, the effects of chipmunk and jumping mice densities on dispersal by redbacked vole were greater than the effects of conspecific densities, with voles more likely to disperse from areas of high chipmunk densities and low jumping mice densities. Likewise, the effect of chipmunk densities on dispersal by jumping mice was greater than the conspecific density effect. Conspecific densities clearly can affect dispersal by two of these four species, but the effects of heterospecific densities on dispersal frequency are less clear. Based on effect sizes it appears that there is potential for heterospecific effects on dispersal by some species in the community, but future experimental work could elucidate the strength and causes of these relationships. SUPPLEMENTARY DATASD1-conspecific density dependent dispersal candidate model structure SD2-conspecific density dependent dispersal model AIC comparisons SD3-heterospecific density dependent dispersal candidate model structure and output SD4-summary statistics regarding deer mice in APP (taken from Denomme-Brown et al. in review) SD5-Full model results for consistently structured heterospecific density-dependent dispersal models LITERATURE CITED Agrawal, A.A. et al. 2007. Filling key gaps in population and community ecology. Frontiers in

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Interactions between 2 Mediterranean rodent species: Habitat overlap and use of heterospecific cues

Cited by 8 publications

References 46 publications

Immediate increase in isotopic enrichment in small mammals following the expansion of a great cormorant colony

Immediate increase in isotopic enrichment in small mammals following the expansion of a great cormorant colony

Conspecific and heterospecific cueing in shelter choices of Blaptica dubia cockroaches

Examining Interspecific density-dependent dispersal in forest small mammals

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