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Roberts HP, Willey LL, Jones MT, Akre TSB, King DI, Kleopfer J, Brown DJ, Buchanan SW, Chandler HC, deMaynadier P, Winters M, Erb L, Gipe KD, Johnson G, Lauer K, Liebgold EB, Mays JD, Meck JR, Megyesy J, Mota JL, Nazdrowicz NH, Oxenrider KJ, Parren M, Ransom TS, Rohrbaugh L, Smith S, Yorks D, Zarate B. Is the future female for turtles? Climate change and wetland configuration predict sex ratios of a freshwater species. GLOBAL CHANGE BIOLOGY 2023; 29:2643-2654. [PMID: 36723260 DOI: 10.1111/gcb.16625] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 12/15/2022] [Indexed: 05/31/2023]
Abstract
Climate change and land-use change are leading drivers of biodiversity decline, affecting demographic parameters that are important for population persistence. For example, scientists have speculated for decades that climate change may skew adult sex ratios in taxa that express temperature-dependent sex determination (TSD), but limited evidence exists that this phenomenon is occurring in natural settings. For species that are vulnerable to anthropogenic land-use practices, differential mortality among sexes may also skew sex ratios. We sampled the spotted turtle (Clemmys guttata), a freshwater species with TSD, across a large portion of its geographic range (Florida to Maine), to assess the environmental factors influencing adult sex ratios. We present evidence that suggests recent climate change has potentially skewed the adult sex ratio of spotted turtles, with samples following a pattern of increased proportions of females concomitant with warming trends, but only within the warmer areas sampled. At intermediate temperatures, there was no relationship with climate, while in the cooler areas we found the opposite pattern, with samples becoming more male biased with increasing temperatures. These patterns might be explained in part by variation in relative adaptive capacity via phenotypic plasticity in nest site selection. Our findings also suggest that spotted turtles have a context-dependent and multi-scale relationship with land use. We observed a negative relationship between male proportion and the amount of crop cover (within 300 m) when wetlands were less spatially aggregated. However, when wetlands were aggregated, sex ratios remained consistent. This pattern may reflect sex-specific patterns in movement that render males more vulnerable to mortality from agricultural machinery and other threats. Our findings highlight the complexity of species' responses to both climate change and land use, and emphasize the role that landscape structure can play in shaping wildlife population demographics.
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Affiliation(s)
- H Patrick Roberts
- Department of Environmental Conservation, University of Massachusetts, Amherst, Massachusetts, USA
| | - Lisabeth L Willey
- Department of Environmental Studies, Antioch University New England, Keene, New Hampshire, USA
- American Turtle Observatory, New Salem, Massachusetts, USA
| | - Michael T Jones
- Natural Heritage and Endangered Species Program, Massachusetts Division of Fisheries and Wildlife, Westborough, Massachusetts, USA
| | - Thomas S B Akre
- Smithsonian Conservation Biology Institute, Front Royal, Virginia, USA
| | - David I King
- U.S. Forest Service, Northern Research Station, Department of Environmental Conservation, University of Massachusetts, Amherst, Massachusetts, USA
| | - John Kleopfer
- Virginia Department of Wildlife Resources, Charles City, Virginia, USA
| | - Donald J Brown
- U.S. Forest Service, Pacific Northwest Research Station, Amboy, Washington, USA
- School of Natural Resources, West Virginia University, Morgantown, West Virginia, USA
| | - Scott W Buchanan
- Division of Fish and Wildlife, Rhode Island Department of Environmental Management, West Kingston, Rhode Island, USA
| | - Houston C Chandler
- The Orianne Society, Tiger, Georgia, USA
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, Virginia, USA
| | | | - Melissa Winters
- New Hampshire Fish and Game Department, Concord, New Hampshire, USA
| | - Lori Erb
- The Mid-Atlantic Center for Herpetology and Conservation, Oley, Pennsylvania, USA
| | - Katharine D Gipe
- Pennsylvania Fish and Boat Commission, Bellefonte, Pennsylvania, USA
| | - Glenn Johnson
- Biology Department, State University of New York, Potsdam, New York, USA
| | - Kathryn Lauer
- Department of Environmental Studies, Antioch University New England, Keene, New Hampshire, USA
- American Turtle Observatory, New Salem, Massachusetts, USA
| | - Eric B Liebgold
- Department of Biological Sciences, Salisbury University, Salisbury, Maryland, USA
| | - Jonathan D Mays
- Fish and Wildlife Research Institute, Florida Fish and Wildlife Conservation Commission, Gainesville, Florida, USA
| | - Jessica R Meck
- Natural Heritage and Endangered Species Program, Massachusetts Division of Fisheries and Wildlife, Westborough, Massachusetts, USA
- Smithsonian Conservation Biology Institute, Front Royal, Virginia, USA
| | - Joshua Megyesy
- New Hampshire Fish and Game Department, Concord, New Hampshire, USA
| | - Joel L Mota
- U.S. Forest Service, Pacific Northwest Research Station, Amboy, Washington, USA
| | - Nathan H Nazdrowicz
- Species Conservation and Research Program, Delaware Division of Fish & Wildlife, Delaware, USA
| | - Kevin J Oxenrider
- West Virginia Division of Natural Resources, Romney, West Virginia, USA
| | - Molly Parren
- American Turtle Observatory, New Salem, Massachusetts, USA
| | - Tami S Ransom
- Environmental Studies Department, Salisbury University, Salisbury, Maryland, USA
| | - Lindsay Rohrbaugh
- District of Columbia Department of Energy & Environment, Washington, District of Columbia, USA
| | - Scott Smith
- Maryland Department of Natural Resources, Maryland, Wye Mills, USA
| | - Derek Yorks
- Maine Department of Inland Fisheries and Wildlife, Augusta, Maine, USA
| | - Brian Zarate
- New Jersey Division of Fish and Wildlife, Lebanon, New Jersey, USA
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Bohannon AM, Bassett LG, Sirsi S, MacLaren AR, Foley DH, Fritts SR, Pharr LR, Forstner MR. Reproductive Characteristics of Rio Grande Cooters (Pseudemys gorzugi) in Western Texas. CHELONIAN CONSERVATION AND BIOLOGY 2022. [DOI: 10.2744/ccb-1551.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Austin M.A. Bohannon
- Texas Parks and Wildlife Department, Wildlife Division, 109 South Cockrell Street, Alpine, Texas 79830 USA []
| | - Lawrence G. Bassett
- Department of Biology, Texas State University, 601 University Drive, San Marcos, Texas 78666 USA [; ; ; ]
| | - Shashwat Sirsi
- Department of Biology, Texas State University, 601 University Drive, San Marcos, Texas 78666 USA [; ; ; ]
| | - Andrew R. MacLaren
- Cambrian Environmental, 4422 Pack Saddle Pass #204, Austin, Texas 78745 USA []
| | - Daniel H. Foley
- Department of Natural & Behavioral Sciences, Sul Ross State University, 205 Wildcat Drive, Del Rio, Texas 78840 USA []
| | - Sarah R. Fritts
- Department of Biology, Texas State University, 601 University Drive, San Marcos, Texas 78666 USA [; ; ; ]
| | - Laura R. Pharr
- Val Verde Veterinary Hospital, 100 Lowe Drive, Del Rio, Texas 78840 USA []
| | - Michael R.J. Forstner
- Department of Biology, Texas State University, 601 University Drive, San Marcos, Texas 78666 USA [; ; ; ]
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Donini J, Selman W. Clutch Size, Clutch Frequency, and Egg Characteristics of Diamond-Backed Terrapins (Malaclemys terrapin) in Southwestern Louisiana. SOUTHEAST NAT 2022. [DOI: 10.1656/058.021.0307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Jordan Donini
- Department of Pure and Applied Sciences, Florida Southwestern State College, 7505 Grand Lely Drive, Naples, FL 34113
| | - Will Selman
- Department of Biology, Millsaps College, Jackson, MS 39210
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Duchak TJ, Burke RL. Hatching Failure in Wood Turtles (Glyptemys insculpta) Is Linked to Maternal Identity. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.836800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Wood turtles (Glyptemys insculpta) have been suffering range-wide population declines since the 1900s. Most monitoring efforts of these turtles involve population surveys to assess population size and viability but relatively few investigate rates of reproductive success. We collected four consecutive years (2013–2016) of wood turtle nesting data at a nesting site in northwestern New Jersey; population-level hatching success was unusually low. Furthermore, annual, intra-individual hatch rates and comparisons between natural and artificial incubation revealed that approximately half of all females usually produced clutches with low (<50%) hatch rates, regardless of incubation conditions. In contrast, the annual hatch rates of other females were either consistently high (>50%) or highly variable, ranging from 0 to 100%. Thus, some adult females are potentially making much larger contributions to the next generation than others. A repeatability analysis suggested that approximately 60% of the hatch rate variability observed in this population can be attributed to maternal identity. The remaining 40% may be attributed to the random environmental factors that are often theorized to be potential reasons for reduced hatch rates in turtle populations (e.g., unsuitable incubation conditions, flooding, desiccation, egg infertility, egg damage due to improper handling by researchers, root and insect predation, and microbial infection). The ultimate causes of this population’s hatching success variability are uncertain, but maternally-linked hatching failure in turtle populations could be associated with inbreeding, infertility, senescence, inadequate maternal diets, or environmental contamination. This study indicates that commonly suggested hypotheses for hatching failure, such as unsuitable incubation conditions or infertility, are unlikely to explain all of the hatch rate variability in some turtle populations. This study also reveals a cryptic conservation implication for vulnerable turtle populations: that the presence of many nesting females and nests does not necessarily assure high or even sustainable reproductive rates. When coupled with the high rates of nest predation and low juvenile survival rates that are common in most turtle populations, the exceedingly low hatch rates observed in this population suggest that recruitment in some turtle populations could be severely hindered even when nests are protected in the field or incubated in laboratory settings.
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Demographics and morphometrics of marsh terrapins (Pelomedusa galeata) and serrated hinged terrapins (Pelusios sinuatus) populations in KwaZulu-Natal, South Africa: skewed size-class bias concerns. ZOOMORPHOLOGY 2021. [DOI: 10.1007/s00435-021-00518-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Chandler HC, Stegenga BS, Stevenson DJ. Thermal Ecology of Spotted Turtles (Clemmys guttata) in Two Southern Populations. COPEIA 2020. [DOI: 10.1643/ce-19-315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Houston C. Chandler
- The Orianne Society, 11 Old Fruitstand Lane, Tiger, Georgia; (HCC) . Send reprint requests to HCC
| | - Benjamin S. Stegenga
- The Orianne Society, 11 Old Fruitstand Lane, Tiger, Georgia; (HCC) . Send reprint requests to HCC
| | - Dirk J. Stevenson
- The Orianne Society, 11 Old Fruitstand Lane, Tiger, Georgia; (HCC) . Send reprint requests to HCC
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A Long-Term Demographic Analysis of Spotted Turtles (Clemmys guttata) in Illinois Using Matrix Models. DIVERSITY 2019. [DOI: 10.3390/d11120226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Matrix models and perturbation analyses provide a useful framework for evaluating demographic vital rates crucial to maintaining population growth. Determining which vital rates most influence population growth is necessary for effective management of long-lived organisms facing population declines. In Illinois, the state-endangered Spotted Turtle (Clemmys guttata) occurs in two distinct populations, and management can benefit from an understanding of its demographic behavior. We conducted a mark–recapture study on both populations in 2015 and 2016 and used historical mark–recapture data from 1988 to 2010 to determine female age-specific survival and fecundity rates. Survival increased significantly with age, and age-specific reproductive output and fecundity were >1.0. However, both populations exhibited net reproductive rates below replacement levels, and one population had a negative growth rate. Summed elasticities for all adult age classes indicate adult survival has the highest proportional impact on population growth. We found evidence of demographic divergence between the two populations, and thus the prioritization of vital rates varied somewhat between sites, with a relatively higher emphasis on juvenile and young adult survival for one population. We recommend conservation actions such as habitat management and predator control, which will have positive impacts across stage classes.
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Chandler HC, Stegenga BS, Stevenson DJ. Movement and Space Use in Southern Populations of Spotted Turtles (Clemmys guttata). SOUTHEAST NAT 2019. [DOI: 10.1656/058.018.0411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Suriyamongkol T, Mali I. Aspects of the Reproductive Biology of the Rio Grande Cooter (Pseudemys gorzugi) on the Black River, New Mexico. CHELONIAN CONSERVATION AND BIOLOGY 2019. [DOI: 10.2744/ccb-1385.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Thanchira Suriyamongkol
- Department of Biology, Eastern New Mexico University, 1500 South Avenue K, Station 33, Portales, New Mexico 88130 USA [; ]
| | - Ivana Mali
- Department of Biology, Eastern New Mexico University, 1500 South Avenue K, Station 33, Portales, New Mexico 88130 USA [; ]
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10
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Endangered species protection and evidence-based decision-making: Case study of a quarry proposal in endangered turtle habitat. Glob Ecol Conserv 2019. [DOI: 10.1016/j.gecco.2019.e00751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Seateun S, Karraker NE, Stuart BL, Aowphol A. Population demography of Oldham's leaf turtle ( Cyclemys oldhamii) in protected and disturbed habitats in Thailand. PeerJ 2019; 7:e7196. [PMID: 31304062 PMCID: PMC6611445 DOI: 10.7717/peerj.7196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 05/28/2019] [Indexed: 11/20/2022] Open
Abstract
Background Freshwater turtle populations are vulnerable to a range of human activities because of particular life history attributes, and anthropogenic impacts can cause shifts in demographic traits, including survival, density and population structure. Asian freshwater turtles have undergone dramatic population declines in recent decades principally because of collection for food, pet, and traditional medicine markets. Despite this, few studies have been conducted on the population demography of these turtles, thereby limiting our understanding of population trends and the development of conservation actions. Oldham's leaf turtle (Cyclemys oldhamii) is one of the most commonly traded turtles in Asian markets, but previous published studies have focused solely on systematics. Methods We conducted a mark-recapture study of C. oldhamii at three sites in northeastern Thailand-a protected stream, a degraded stream, and human-constructed ponds-and evaluated differences in survival, density, population structure, and sexual dimorphism among sites. Results We captured 77 turtles at the protected stream, 67 at the constructed ponds, and two in the degraded stream. Survival was 12% lower and density was 35% lower in the constructed ponds than in the protected stream. Size class structure was skewed toward smaller individuals at the constructed ponds, and both sites exhibited subadult-skewed age class structure. Sex ratios were not statistically different than 1:1 at either site and did not differ between sites. We did not document sexual dimorphism in either population. Discussion Explanations for lower survival, lower densities, and skewed size class structure at the constructed ponds include collection for consumption or Buddhist prayer release locally, collection for illegal export from Thailand, predation by domestic dogs associated with humans living nearby, or lower habitat quality. Evidence from our study suggests that collection, either for local use or export, is the most likely explanation for differences in demographic characteristics between the two sites. The information gained from this study may contribute to a status assessment for C. oldhamii and development of conservation actions should they become necessary to protect populations in Thailand.
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Affiliation(s)
- Sengvilay Seateun
- Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, Thailand
| | - Nancy E Karraker
- Department of Natural Resources Science, University of Rhode Island, Kingston, RI, United States of America
| | - Bryan L Stuart
- North Carolina Museum of Natural Sciences, Raleigh, NC, United States of America
| | - Anchalee Aowphol
- Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, Thailand
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13
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Burke RL, Clendening B, Kanonik A. Long-term increases in clutch size in common snapping turtles ( Chelydra serpentina) and diamondback terrapins ( Malaclemys terrapin). J NAT HIST 2018. [DOI: 10.1080/00222933.2018.1483539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Russell L. Burke
- Department of Biology, Hofstra University, Hempstead, NY, USA
- American Littoral Society, Northeast Chapter, Broad Channel, NY, USA
| | | | - Alexandra Kanonik
- American Littoral Society, Northeast Chapter, Broad Channel, NY, USA
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14
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Santilli J, Rollinson N. Toward a general explanation for latitudinal clines in body size among chelonians. Biol J Linn Soc Lond 2018. [DOI: 10.1093/biolinnean/bly054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Jessica Santilli
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada
| | - Njal Rollinson
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada
- School of the Environment, University of Toronto, Toronto, ON, Canada
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15
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Lovich JE, Puffer SR, Agha M, Ennen JR, Meyer-Wilkins K, Tennant LA, Smith AL, Arundel TR, Brundige KD, Vamstad MS. Reproductive Output and Clutch Phenology of Female Agassiz's Desert Tortoises (Gopherus agassizii) in the Sonoran Desert Region of Joshua Tree National Park. CURRENT HERPETOLOGY 2018. [DOI: 10.5358/hsj.37.40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jeffrey E. Lovich
- U.S. Geological Survey, Southwest Biological Science Center, 2255 North Gemini Drive, MS-9394, Flagstaff, AZ 86001, USA
| | - Shellie R. Puffer
- U.S. Geological Survey, Southwest Biological Science Center, 2255 North Gemini Drive, MS-9394, Flagstaff, AZ 86001, USA
| | - Mickey Agha
- Department of Wildlife, Fish, and Conservation Biology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Joshua R. Ennen
- Tennessee Aquarium Conservation Institute, Tennessee Aquarium, 175 Baylor School Rd, Chattanooga, TN 37405, USA
| | | | - Laura A. Tennant
- U.S. Geological Survey, Southwest Biological Science Center, 2255 North Gemini Drive, MS-9394, Flagstaff, AZ 86001, USA
| | - Amanda L. Smith
- Sonoran Institute, 100 North Stone Ave Suite 400, Tucson, AZ 85701, USA
| | - Terence R. Arundel
- U.S. Geological Survey, Southwest Biological Science Center, 2255 North Gemini Drive, MS-9394, Flagstaff, AZ 86001, USA
| | - Kathleen D. Brundige
- Coachella Valley Conservation Commission, 73-710 Fred Waring Drive, Suite 200, Palm Desert, CA 92260–2516, USA
| | - Michael S. Vamstad
- National Park Service, Joshua Tree National Park, 74485 National Park Drive, Twentynine Palms, CA 92277–3597, USA
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Escalona T, Adams DC, Valenzuela N. A lengthy solution to the optimal propagule size problem in the large-bodied South American freshwater turtle, Podocnemis unifilis. Evol Ecol 2017. [DOI: 10.1007/s10682-017-9922-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Lucas PS, Bager A. Contrasting reproductive strategies in a narrow latitude range: the case of D’Orbigny’s slider. AMPHIBIA-REPTILIA 2017. [DOI: 10.1163/15685381-00003122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Reproductive traits and the level of parental investment in offspring varies between individuals and species. These are central issues in life history theory and evolutionary biology. Maternal body size plays an important role in reproduction, and we usually observe variable investment in offspring by females. Thus, optimal egg size may not be reached in some populations or species. In this study, we tested if reproductive traits differed between populations of D’Orbigny’s slider in a specific geographical area in Brazil. We evaluated the relationship between reproductive traits to maternal body size and clutch size to egg size to determine possible trade-offs across populations. At the population level, maternal body size and reproductive traits of D’Orbigny’s slider were different even in geographically nearby areas. Maternal body size had a positive effect on clutch size, but not on egg size, except in the Arroio Grande population. Nevertheless, we did not observe a negative correlation between clutch and egg size in any population. Although maternal body size had effects in the different populations explaining most of the variation of clutch size, variation in egg size may be the result of decreased survival chances in unpredictable environments and possibly morphological constraints. The trade-off between egg size and number was not observed and this could be expected if resource availability and reproductive allocation by females vary greatly among individuals.
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Affiliation(s)
- Priscila Silva Lucas
- Programa de Pós-Graduação em Ecologia Aplicada, Departamento de Biologia, Universidade Federal de Lavras, Campus Universitário, CP 3037, CEP 37200-000, Lavras, MG, Brazil
- Centro Brasileiro de Estudos em Ecologia de Estradas, Universidade Federal de Lavras, Campus Universitário, CP 3037, CEP 37200-000, Lavras, MG, Brazil
| | - Alex Bager
- Programa de Pós-Graduação em Ecologia Aplicada, Departamento de Biologia, Universidade Federal de Lavras, Campus Universitário, CP 3037, CEP 37200-000, Lavras, MG, Brazil
- Centro Brasileiro de Estudos em Ecologia de Estradas, Universidade Federal de Lavras, Campus Universitário, CP 3037, CEP 37200-000, Lavras, MG, Brazil
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Rasmussen ML, Litzgus JD. Patterns of maternal investment in spotted turtles (Clemmys guttata): Implications of trade-offs, scales of analyses, and incubation substrates. ECOSCIENCE 2015. [DOI: 10.2980/17-1-3298] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Werner YL, Korolker N, Sion G, Göçmen B. Bergmann's and Rensch's rules and the spur-thighed tortoise (Testudo graeca). Biol J Linn Soc Lond 2015. [DOI: 10.1111/bij.12717] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yehudah L. Werner
- The Alexander Silberman Institute of Life Sciences (Dept EEB); The Hebrew University of Jerusalem; 91904 Jerusalem Israel
- Museum für Tierkunde, Senckenberg Dresden; Königsbrücker Landstrasse 159 D-01109 Dresden Germany
| | - Nuphar Korolker
- The Alexander Silberman Institute of Life Sciences (Dept EEB); The Hebrew University of Jerusalem; 91904 Jerusalem Israel
| | - Guy Sion
- The Alexander Silberman Institute of Life Sciences (Dept EEB); The Hebrew University of Jerusalem; 91904 Jerusalem Israel
| | - Bayram Göçmen
- Zoology Section; Department of Biology; Faculty of Science; Ege University; 35100 Bornova-Izmir Turkey
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Pincheira-Donoso D, Hunt J. Fecundity selection theory: concepts and evidence. Biol Rev Camb Philos Soc 2015; 92:341-356. [PMID: 26526765 DOI: 10.1111/brv.12232] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 09/28/2015] [Accepted: 09/30/2015] [Indexed: 11/28/2022]
Abstract
Fitness results from an optimal balance between survival, mating success and fecundity. The interactions between these three components of fitness vary depending on the selective context, from positive covariation between them, to antagonistic pleiotropic relationships when fitness increases in one reduce the fitness of others. Therefore, elucidating the routes through which selection shapes life history and phenotypic adaptations via these fitness components is of primary significance to understanding ecological and evolutionary dynamics. However, while the fitness components mediated by natural (survival) and sexual (mating success) selection have been debated extensively from most possible perspectives, fecundity selection remains considerably less studied. Here, we review the theoretical basis, evidence and implications of fecundity selection as a driver of sex-specific adaptive evolution. Based on accumulating literature on the life-history, phenotypic and ecological aspects of fecundity, we (i) suggest a re-arrangement of the concepts of fecundity, whereby we coin the term 'transient fecundity' to refer to brood size per reproductive episode, while 'annual' and 'lifetime fecundity' should not be used interchangeably with 'transient fecundity' as they represent different life-history parameters; (ii) provide a generalized re-definition of the concept of fecundity selection as a mechanism that encompasses any traits that influence fecundity in any direction (from high to low) and in either sex; (iii) review the (macro)ecological basis of fecundity selection (e.g. ecological pressures that influence predictable spatial variation in fecundity); (iv) suggest that most ecological theories of fecundity selection should be tested in organisms other than birds; (v) argue that the longstanding fecundity selection hypothesis of female-biased sexual size dimorphism (SSD) has gained inconsistent support, that strong fecundity selection does not necessarily drive female-biased SSD, and that this form of SSD can be driven by other selective pressures; and (vi) discuss cases in which fecundity selection operates on males. This conceptual analysis of the theory of fecundity selection promises to help illuminate one of the central components of fitness and its contribution to adaptive evolution.
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Affiliation(s)
- Daniel Pincheira-Donoso
- Laboratory of Evolutionary Ecology of Adaptations, School of Life Sciences, University of Lincoln, Brayford Campus, Lincoln, Lincolnshire, LN6 7DL, U.K
| | - John Hunt
- Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Cornwall Campus, Penryn, Cornwall, TR10 9EZ, U.K
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Portelinha TCG, Malvasio A, Piña CI, Bertoluci J. Population Structure ofPodocnemis expansa(Testudines: Podocnemididae) in Southern Brazilian Amazon. COPEIA 2014. [DOI: 10.1643/ce-13-058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Zhao B, Chen Y, Lu HL, Zeng ZG, Du WG. Latitudinal differences in temperature effects on the embryonic development and hatchling phenotypes of the Asian yellow pond turtle,Mauremys mutica. Biol J Linn Soc Lond 2014. [DOI: 10.1111/bij.12400] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bo Zhao
- Key Laboratory of Animal Ecology and Conservation Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing 100101 China
- Hangzhou Key Laboratory for Animal Adaptation and Evolution; School of Life and Environmental Sciences; Hangzhou Normal University; Hangzhou 310036 China
| | - Ye Chen
- Hangzhou Key Laboratory for Animal Adaptation and Evolution; School of Life and Environmental Sciences; Hangzhou Normal University; Hangzhou 310036 China
| | - Hong-Liang Lu
- Hangzhou Key Laboratory for Animal Adaptation and Evolution; School of Life and Environmental Sciences; Hangzhou Normal University; Hangzhou 310036 China
| | - Zhi-Gao Zeng
- Key Laboratory of Animal Ecology and Conservation Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing 100101 China
| | - Wei-Guo Du
- Key Laboratory of Animal Ecology and Conservation Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing 100101 China
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Mali I, Simpson TR, Rose FL. Reproductive demography of two closely related Emydine Turtles in a spring fed system. SOUTHWEST NAT 2014. [DOI: 10.1894/swn-59(3)-jmm-01.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Famelli S, Adriano LR, Pinheiro SCP, Souza FL, Bertoluci J. Reproductive Biology of the Freshwater TurtleHydromedusa maximiliani(Chelidae) from Southeastern Brazil. CHELONIAN CONSERVATION AND BIOLOGY 2014. [DOI: 10.2744/ccb-1005.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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DU W, ROBBINS TR, WARNER DA, LANGKILDE T, SHINE R. Latitudinal and seasonal variation in reproductive effort of the eastern fence lizard (Sceloporus undulatus). Integr Zool 2014; 9:360-71. [DOI: 10.1111/1749-4877.12072] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Weiguo DU
- Key Lab of Animal Ecology and Conservation Biology, Institute of Zoology; Chinese Academy of Sciences; Beijing China
| | - Travis R. ROBBINS
- Department of Biology; Pennsylvania State University, University Park; Pennsylvania USA
| | - Daniel A. WARNER
- Department of Ecology, Evolution and Organismal Biology; Iowa State University; Ames Iowa USA
| | - Tracy LANGKILDE
- Department of Biology; Pennsylvania State University, University Park; Pennsylvania USA
| | - Richard SHINE
- School of Biological Sciences; University of Sydney; New South Wales Australia
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26
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Reproductive Allometry ofPodocnemis expansa(Testudines: Podocnemididae) in Southern Brazilian Amazon. J HERPETOL 2013. [DOI: 10.1670/11-288] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Geller GA. Notes on the Nest Predation Dynamics of Graptemys at Two Wisconsin Sites Using Trail Camera Monitoring. CHELONIAN CONSERVATION AND BIOLOGY 2012. [DOI: 10.2744/ccb-0992.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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28
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Allman PE, Place AR, Roosenburg WM. Geographic variation in egg size and lipid provisioning in the diamondback terrapin Malaclemys terrapin. Physiol Biochem Zool 2012; 85:442-9. [PMID: 22902372 DOI: 10.1086/667412] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Understanding phenotypic differentiation among populations of wide-ranging species remains at the core of life-history research, because adaptation to local environmental conditions is expected. For example, when energy resources influence offspring fitness (as in oviparous ectotherms), the egg and hatchling environments are expected to influence selection by acting on the amount of energy allocated to offspring. Here we identify population variation in egg mass, length, width, and volume from diamondback terrapin Malaclemys terrapin eggs collected in Rhode Island (RI), Maryland (MD), and South Carolina (SC). Egg size (mean volume: 7.6, 8.1, and 9.1 cc in RI, MD, and SC, respectively) and clutch size (mean no. eggs: 16.1, 12.2, and 6.0 in RI, MD, and SC, respectively) differed among populations, which indicated that females produce larger clutches with smaller eggs at high latitudes and smaller clutches of larger eggs at lower latitudes. Lipid analyses indicated that eggs from SC contained yolks with a higher proportion of nonpolar lipids than did eggs from MD or RI (mean percentage of nonpolar lipids: 22.3%, 22.5%, and 31.8% in RI, MD, and SC, respectively). Thus, female terrapins in SC are laying larger eggs with increased lipid content to provide more energy for the developing embryo. Interestingly, total triacylglycerol (energetic lipid) was greater in southern populations but occurred in higher proportions in northern populations (total triacylglycerol: 88.0%, 85.4%, and 81.9% in RI, MD, and SC, respectively). This variation in triacylglycerol levels demonstrates the necessity for quantifying each lipid component. These data indicate a difference in reproductive strategy by which females in northern populations invest in higher fecundity with less energetic resources per offspring, whereas females in southern populations invest in larger eggs with considerably greater energy reserves.
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Affiliation(s)
- Phil E Allman
- Ohio Center for Ecology and Evolutionary Studies, Department of Biological Sciences, Ohio University, Athens, OH 45710, USA.
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29
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Rowe JW, Gradel JR, Bunce CF, Clark DL. Sexual dimorphism in size and shell shape, and dichromatism of spotted turtles (Clemmys guttata) in Southwestern Michigan. AMPHIBIA-REPTILIA 2012. [DOI: 10.1163/15685381-00002847] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Differences in pigmentation, morphometry, and body size between sexes within populations can imply inter-sexual differences in reproductive biology. We assessed variation in body size, morphometrics, and pigmentation in Spotted Turtles (Clemmys guttata) in a southwestern Michigan population. Clemmys guttata was not sexually dimorphic in body size but when compared to males, positive allometric increases in shell height resulted in relatively domed shells in females. Integumental reflectance was mostly limited to the visual spectrum 400-700 nm with little to no reflectance in the UV spectrum (340-700 nm). We found no intersexual differences in the intensity (brightness) of yellow spots or black ground color of the head and carapace, perhaps suggesting that such markings are involved in cryptic coloration. The orange-red stripes of the head and forelimbs, that were similar in intensity between the sexes, would look conspicuous in the full spectrum light of the shallow aquatic habitats of C. guttata and thus could be involved in mate recognition. Chins of males were darker than those of females suggesting that chin color is a sexually selected trait.
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Affiliation(s)
- John W. Rowe
- Biology Department, Alma College, 614 West Superior Street, Alma, Michigan 48801, USA
| | - Jessica R. Gradel
- Biology Department, Alma College, 614 West Superior Street, Alma, Michigan 48801, USA
| | - Charles F. Bunce
- Biology Department, Alma College, 614 West Superior Street, Alma, Michigan 48801, USA
| | - David L. Clark
- Biology Department, Alma College, 614 West Superior Street, Alma, Michigan 48801, USA
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Bonach K, Malvasio A, Matushima ER, Verdade LM. Temperature-sex determination in Podocnemis expansa (Testudines, Podocnemididae). IHERINGIA. SERIE ZOOLOGIA 2011. [DOI: 10.1590/s0073-47212011000200001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study has been carried out at the central region of the Araguaia river on the border between the states of Goiás and Mato Grosso in the Brazilian Amazon Basin from September to December 2000. We recorded temperature fluctuation, clutch-size, incubation period and hatching success rate and hatchlings' sex ratio of five nests of Podocnemis expansa (Schweigger, 1812). Despite the relatively small sample size we infer that: a) nests of P. expansa in the central Araguaia river have a lower incubation temperature than nests located further south; however, incubation period is shorter, hatching success rate is lower and clutch-size is larger; b) Podocnemis expansa may present a female-male-female (FMF) pattern of temperature sex-determination (TSD); c) thermosensitive period of sex determination apparently occur at the last third of the incubation period; and, d) future studies should prioritize the relationship between temperature variation (i.e., range and cycle) and embryos development, survivorship and sex determination.
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Affiliation(s)
- Kelly Bonach
- Instituto Chico Mendes de Conservação da Biodiversidade, Brazil
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31
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Greaves WF, Litzgus JD. Variation in life-history characteristics among populations of North American wood turtles: a view from the north. J Zool (1987) 2009. [DOI: 10.1111/j.1469-7998.2009.00621.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Hughes GN, Greaves WF, Litzgus JD. Nest-Site Selection by Wood Turtles (Glyptemys insculpta) in a Thermally Limited Environment. Northeast Nat (Steuben) 2009. [DOI: 10.1656/045.016.n302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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33
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Ruane S, Dinkelacker SA, Iverson JB. Demographic and Reproductive Traits of Blanding's Turtles, Emydoidea blandingii, at the Western Edge of the Species' Range. COPEIA 2008. [DOI: 10.1643/ce-07-108] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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34
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Germano DJ, Rathbun GB. Growth, Population Structure, and Reproduction of Western Pond Turtles (Actinemys marmorata) on the Central Coast of California. CHELONIAN CONSERVATION AND BIOLOGY 2008. [DOI: 10.2744/ccb-0705.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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35
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Reeves DJ, Litzgus JD. Demography of an Island Population of Spotted Turtles (Clemmys guttata) at the Species' Northern Range Limit. Northeast Nat (Steuben) 2008. [DOI: 10.1656/1092-6194-15.3.417] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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36
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Litzgus JD, Bolton F, Schulte-Hostedde AI. Reproductive Output Depends on Body Condition in Spotted Turtles (Clemmys Guttata). COPEIA 2008. [DOI: 10.1643/ch-07-093] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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